JP6122586B2 - Railway vehicle communication system - Google Patents

Description

  The present invention relates to a communication system for a railway vehicle that is used for communications such as in-car broadcasting, communication between crew members, emergency calls, and external telephones in vehicles such as railways.

  FIG. 42 is a schematic configuration diagram of a communication system for a railway vehicle in the prior art, and is a communication system provided on a train formed by connecting vehicles from No. 1 car to No. 10 car. As shown in FIG. 42, the conventional communication system includes, for example, a broadcast operation unit 901 that performs broadcast and contact operations, a communication control unit 902 that controls communication according to the operation of the broadcast operation unit 901, and an emergency call. An emergency call device 903 for performing communication, a lead line 908 for connecting the communication control unit 902 between vehicles, and a speaker 909 for outputting a sound based on a sound signal from the communication control unit 902 are provided.

  When performing in-car broadcast, for example, when the conductor operates the broadcast operation unit 901 in the conductor room of car No. 9 and speaks toward the transmission unit (microphone) of the broadcast operation unit 901, the broadcast operation unit 901 transmits The voice received by the unit is converted into a voice signal and sent to the communication control unit 902. The communication line 908 is passed from the communication control unit 902 of the ninth car to the communication control unit 902 of another vehicle (No. 1 car to No. 8 car, No. 10 car). To send through. The communication control units of No. 1 to No. 8 and No. 10 and No. 9 and the communication control unit 902 of the No. 9 vehicle, which have received the audio signal, output audio based on the audio signal from the speaker 909. Thereby, the sound emitted from the conductor compartment is broadcast over all the vehicles.

  In addition, when an emergency occurs and an emergency button (not shown) of the emergency call device 903 is pressed in a certain vehicle, a signal (emergency call) indicating that this emergency has occurred is input to the communication control unit 902, The data is transmitted to the communication control unit 902 of another vehicle via the lead-in line 908. Upon receiving the emergency call, the communication control unit 902 sounds an emergency buzzer in the driver's cab or the conductor's cabin, and notifies the broadcast operator 901 of an incoming emergency call. When a confirmation and response operation is performed by a crew member such as a conductor, the emergency buzzer is stopped, and a call between the broadcast operation device 901 and the emergency notification device 903 in which the response operation is performed is enabled.

  When communication is made between crew members such as drivers and conductors, for example, an audio signal is sent from the broadcast operation device 901 to another specific broadcast operation device 901 through the lead-in line 908, and audio is sent from the other broadcast operation device 901. By receiving the signal, it is possible to make a call between the broadcast controllers.

  As prior arts related to the present invention, for example, there are techniques described in Patent Literature 1 and Patent Literature 2.

JP 2007-135033 A JP 2010-74505 A

  As described above, when performing in-car broadcast or responding to an emergency call, a handset such as the broadcast operation unit 901 that is fixedly installed in the conductor or driver's cab is used.

  For this reason, there has been a problem that communication such as in-car broadcast or emergency call response is limited to a specific place where a handset is provided, such as a driver's cab or a conductor's cabin.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a technique capable of widening the position where in-car broadcast, inter-crew crew call, and emergency call can be made in a train as compared with the prior art.

The present invention employs the following means in order to solve the above problems.
That is, the communication system of the present invention
An in-vehicle communication system including at least one of an in-vehicle broadcast system, an inter-crew communication system, and an emergency call system between a passenger and the crew, which are fixedly arranged on a railway vehicle;
A radio communication system equipped with a radio communication control device, one or more radio base stations, and one or more radio terminals carried by a crew member, mounted on the railway vehicle;
A connection control device for converting a control signal from the in-vehicle communication system into a control signal for the in-vehicle communication system, while converting a control signal from the in-vehicle communication system into a control signal for the in-vehicle communication system;
Equipped with.

Further, the intersystem connection device of the present invention is
An in-vehicle communication system including at least one of an in-vehicle broadcasting system, an inter-crew communication system, and an emergency call system between passengers and the crew, which is fixedly arranged on the railway vehicle, and a radio communication control device mounted on the railway vehicle , An inter-system connection device interposed between one or more radio base stations and a radio communication system including one or more radio terminals carried by a crew member,
A connection control device for performing signal conversion for connecting a signal from the wireless communication system to the in-vehicle communication system, while connecting a signal from the in-vehicle communication system to the wireless communication system;
An output control device that outputs the converted signal toward the destination.

The in-vehicle communication system includes a trigger switch fixedly disposed in the vehicle, a signal generator for generating a call signal for the wireless terminal in response to the trigger switch being turned on, and notification information in response to the trigger switch being turned on. An output device that outputs a broadcast information signal,
The radio communication control apparatus supplies the call signal and the broadcast information signal, which are received from the control apparatus, to the radio terminal through the radio base station.
The wireless terminal may execute a calling process according to the calling signal and a notification process according to the notification information signal.

  The wireless terminal includes a display device, and based on the notification information signal, displays information indicating at least one of a car number where the trigger switch is installed and a notification content indicated by turning on the trigger switch on the display device. You may do it.

  In the notification process, the wireless terminal may output voice based on voice guidance corresponding to the trigger switch included in the notification information signal in response to a response operation of the crew member to a call based on the call process. good.

The in-vehicle communication system includes the emergency call system,
The trigger switch is an emergency call switch,
The notification information signal includes information notifying an emergency call,
The connection control device may connect the emergency call system established by the response of the crew member and the wireless terminal, and transmit and receive an audio signal between the emergency call system and the wireless terminal.

  The wireless terminal includes a display device, and displays, on the display device, information indicating at least one of a car number for which the emergency notification switch is turned on and an emergency notification based on the notification information signal. May be.

  In the notification process, the wireless terminal may output a voice based on a voice guidance at the time of receiving an emergency call, which is included in the notification information signal, in response to a response operation of the crew member to a call based on the call process. .

The in-vehicle communication system includes a plurality of emergency call switches and a selection device that performs a selection operation of the plurality of emergency call switches,
When the connection control device receives a selection operation for the first emergency call switch among the plurality of emergency call switches from the wireless terminal and the selection device, the first emergency call selected by the selection operation A voice signal is transmitted and received between the switch and the emergency call system, and a voice signal is transmitted between the second emergency call switch selected from the plurality of emergency call switches according to a predetermined priority condition and the wireless terminal. Transmission and reception may be performed.

  The connection control device connects an audio line on the radio communication system side and a broadcast line on the in-vehicle communication system side based on a control signal received from the radio communication system, and an audio signal for broadcasting input by the radio terminal May be sent to the broadcast line.

  The connection control device connects a voice line on the side of the inter-crew communication system included in the in-vehicle communication system and a voice line on the side of the radio communication system, and communicates a voice signal input at the radio terminal to the crew Communication control may be performed in which a voice signal input from the handset of the crewmember communication system is sent to the wireless terminal.

The communication system includes a train radio mobile station that is wirelessly connected to a train radio ground station installed on the ground,
The train radio mobile station may establish a call between the radio terminal and a telephone set on the train radio ground station side.

  ADVANTAGE OF THE INVENTION According to this invention, the position which can perform in-vehicle broadcasting, a call between crew members, and an emergency call in a train can be expanded compared with the past.

1 is a diagram illustrating an overall configuration of a communication system provided in a railway vehicle according to an embodiment of the present invention. It is the figure which extracted and showed the element of 1st car, 9th car, and 10th car among the said elements which comprise a communication system. It is an external view of a broadcast operation device. It is an external view of an emergency call device. It is a figure which shows the initial screen in which notification is not performed. It is a figure which shows the state at the time of report. It is a figure which shows the state by which the report was performed in the multipurpose room. It is a figure which shows schematic structure of the communication system at the time of combining two organization | organizations. It is an external view of a wireless terminal. It is a figure which shows the example of the communication number allocated in the communication system of a 1st organization. It is a figure which shows the example of the communication number allocated in the communication system of a 2nd organization. It is a figure which shows the relationship between the transmission origin of the communication performed based on a communication number, and a transmission destination. It is a figure which shows the specific example of a system configuration. It is detail drawing of a broadcast control apparatus. It is a figure which shows the sequence in the case of broadcasting from a broadcast controller. It is a figure which shows the sequence in the case of performing a telephone call between broadcast operating devices. It is a figure which shows the sequence in the case of performing in-vehicle broadcast from a radio | wireless terminal. It is a figure which shows the flow in the case of performing in-vehicle broadcast from a radio | wireless terminal. It is a figure which shows the sequence in the case of performing simultaneous communication from a radio | wireless terminal to a broadcast operating device. It is a figure which shows the flow in the case of performing simultaneous communication from a radio | wireless terminal to a broadcast operating device. It is a figure which shows the flow in the case of communicating with a radio | wireless terminal separately from a broadcast controller. It is a figure which shows the sequence in the case of contacting separately from a broadcast controller to a radio | wireless terminal. It is a figure which shows the flow at the time of receiving an emergency call. It is a figure which shows the flow at the time of receiving an emergency call. It is a figure which shows the flow at the time of receiving an emergency call. It is a figure which shows the flow at the time of receiving an emergency call. It is a figure which shows the flow at the time of receiving an emergency call. It is a figure which shows the flow at the time of receiving an emergency call. It is a figure which shows the flow at the time of receiving an emergency call. It is a figure which shows the flow at the time of receiving an emergency call. It is a figure which shows the sequence of report operation | movement. It is explanatory drawing of the example which produces | generates voice guidance according to a report location. It is a figure which shows the sequence at the time of outputting audio | voice guidance. It is a figure which shows the sequence which performs the telephone call between an emergency call apparatus and a radio | wireless terminal. It is a figure which shows the sequence of the confirmation operation | movement by a radio | wireless terminal. It is a figure which shows the sequence of the holding | maintenance operation | movement by a radio | wireless terminal. It is explanatory drawing of the reset operation | movement by a broadcast control screen. It is explanatory drawing of the reset operation by the reset switch of a switchboard. It is explanatory drawing of the example which reports by the multipurpose room buzzer switch provided in the multipurpose room. It is a figure which shows the sequence at the time of making a report by a multipurpose room buzzer switch. It is a figure which shows the flow of the process which reports by a multipurpose room buzzer switch. It is a figure which shows the flow of the process which reports by a multipurpose room buzzer switch. It is a figure which shows the flow of the process which reports by a multipurpose room buzzer switch. It is a schematic block diagram of the communication system for rail vehicles in a prior art.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Configurations in the following embodiments are examples, and the present invention is not limited to the configurations of the embodiments.

FIG. 1 is a diagram showing an overall configuration of a communication system provided in a railway vehicle according to an embodiment of the present invention. FIG. 1 shows a 10-car train composed of No. 1 car to No. 10 car. The communication system 10 includes a broadcast controller (communication controller: handset) 1 for performing in-vehicle broadcasts,
A broadcast control device (communication control device) 2 that performs processing of signals and the like related to in-car broadcasts, and a broadcast control screen device 4 that displays the status of broadcast (communication) by the broadcast controller 1 and notification by the emergency call device 3 . Further, the communication system 10 includes an emergency call device 3 for making an emergency call, a speaker 9 for outputting sound such as in-car broadcast, and a lead-through line 8 provided over the entire vehicle.

  As described above, the communication system 10 according to the embodiment includes an in-car broadcast system (including a broadcast controller 1, a broadcast control device 2, a broadcast line 81, a speaker 9, and the like) fixedly installed in a train (train), and a crew member. Intercom communication system (including broadcast controller 1, broadcast controller 2, contact line 82, etc.) and emergency call system (broadcast operator 1, broadcast controller 2, emergency call device 3, contact line 82, data line 85, etc.) Including an in-vehicle communication system. In the present embodiment, the broadcast operating device 1 and the broadcast control device 2 employ a configuration that also serves as an inter-crew communication device, but the broadcast system and the inter-crew communication system may be configured by individual devices. . The broadcast controller 1 also has a function as an emergency receiver that receives an emergency call from the emergency call device 3 and enables an emergency call. However, the emergency receiver is separated from the broadcast controller 1. It may be provided.

Further, the communication system 10 includes a wireless communication system including a wireless terminal 7 carried by a crew member such as a driver or a conductor, a wireless communication control device 5 that controls a call by the wireless terminal 7, and a wireless base station 6. Yes. In the present embodiment, the wireless communication system is a PHS (Personal Handy-phone System) communication system that uses a higher frequency than the spatial wave wireless applied in train wireless, and the wireless communication control device 5 is a PHS (PBX) for PHS. The wireless terminal 7 is a PHS terminal.

  The broadcast controller 1 and the broadcast control screen device 4 are fixedly installed in a crew room such as a driver's cab or a conductor's cabin. In the example of FIG. 1, it is provided in each of the first car, the second car, the fourth car, the sixth car, the eighth car, the ninth car, and the tenth car.

  The broadcast control device 2, the emergency call device 3, and the radio base station 6 are provided in each of the first car to the tenth car. The wireless communication control device 5 may be provided anywhere in the vehicle, but is provided in the first car in the example of FIG.

  FIG. 2 is a diagram showing extracted components of the communication system 10 installed in the first car, the ninth car, and the tenth car among the above-described elements constituting the communication system 10.

  In FIG. 2, the broadcast control apparatus 2 includes a voice guidance unit (voice guide unit, DCU) 21, a main control unit (MCU) 22, and a network control unit (NCU) 23. The voice guidance unit 21 provides the guidance voice according to the contents of the report, such as “Emergency notification at car # 3. Please confirm by pressing EC”, and the duties of the crew who received the report at the wireless terminal 7 It is for support. In addition, although the example which provided the audio | voice guidance unit 21 in the broadcast control apparatus was shown in FIG. 2, not only this but the audio | voice guidance unit 21 may be provided separately from the broadcast control apparatus 2. FIG.

  The main control unit 22 controls the switching of audio signal paths in the components such as the network control unit 23 on the basis of the notification signal from the emergency call device 3 and the operation signal from the broadcast operation unit 1 to perform in-car broadcast and Have the crew communicate. The main control unit 22 converts a control signal sent from the in-vehicle communication system to the wireless communication system into a control signal for the wireless communication system, while sending a control signal sent from the wireless communication system to the in-vehicle communication system. It is an embodiment of an inter-system connection device that includes a connection control device that converts to a control signal and an output control device that outputs the converted signal to a destination.

  For example, the main control unit 22 converts the notification switch ON / OFF and the communication signal from the broadcast controller 1 into a control signal of a predetermined format used in the wireless communication control device 5, and performs wireless communication via the network control unit 23. This is sent to the control device 5. Further, the type of tone signal by the wireless terminal 7 and a control signal such as on-hook or off-hook are converted into a control signal of a predetermined format used in the in-vehicle communication system, and the signal is transmitted to the network control unit 23 and the voice guidance unit 21.

  In this embodiment, control signal conversion for connecting the in-vehicle communication system and the wireless communication system is performed by the broadcast control apparatus 2 directly connected to the wireless communication control apparatus 5 through the communication line 88, that is, the broadcast control of the first car. Only the device 2 performs, and the broadcast control device 2 of the first car transmits the converted control signal and the like to the wireless communication control device 5 of another vehicle via the lead-in line 8. For example, in FIG. 2, when communication is performed from the broadcast operation unit 1 of the 10th car to the radio terminal 7 of the conductor of the 9th car, an operation signal or an audio signal from the broadcast operation unit 1 of the 10th car is transmitted to the broadcast control device of the 10th car. 2, the signal is sent from the broadcast control device 2 of the tenth car to the broadcast control device 2 of the first car via the lead-in line 8, and wirelessly communicated from the broadcast control apparatus 2 of the first car via the communication line 88. It is transmitted to the control device 5 and transmitted from the wireless communication control device 5 to the wireless terminal 7 carried by the conductor. The specific operation of each part will be described later.

  The network control unit (NCU) 23 is an interface used when the broadcast control device 2 and the wireless communication control device 5 communicate with each other. For example, the audio control signal from the wireless communication control device 5 is out of the plurality of through lines 8. An operation of transmitting to the broadcast control device 2 of each vehicle via the broadcast line 81 and the communication line 82 and an operation of transmitting a calling signal and a voice signal to the wireless terminal 7 to the wireless communication control device 5 are performed.

  A plurality of speakers 9 may be provided in each vehicle. In the example of FIG. 2, the speaker 92 in the cabin or the deck provided in the cabin, the door speaker 93 provided in the vicinity of the door of each vehicle, and the sound broadcast in the vehicle are monitored. In order to do so, the monitor speaker 91 arranged in the crew room is shown.

  The data communication device 89 is a device that performs data communication via the data line 85 of the lead-in line 8. For example, a data signal from the main control unit 22 is transmitted to the broadcast control device 2 of another vehicle via the data line 85, and the data signal received from the broadcast control device 2 of another vehicle via the data line 85 is used as the main signal. Input to the control unit 22. In addition, the data communication device 89 receives a signal indicating a broadcast state from the main control unit 22 and sends it to the broadcast control screen device 4 to display the broadcast state.

  As shown in FIG. 1, the broadcast control device 2 that communicates with the wireless communication control device 5 is different from the other broadcast control devices 2 in that the configuration having the voice guidance unit 21 and the network control unit 23 is different from the other broadcast control devices 2. Are the same. In FIG. 1, an example in which the broadcast control device 2 of the first car communicates with the wireless communication control device 5 is shown. However, the broadcast control device 2 of another vehicle includes the voice guidance unit 21 and the network control unit 23. Thus, a configuration for communicating with the wireless communication control device 5 may be adopted.

  FIG. 3 is an external view of the broadcast controller 1. In FIG. 3, the handset 11 includes a receiver (speaker) that outputs a voice signal as sound, and a transmitter (microphone) that converts voice generated by a crew member into a voice signal.

  The contact call buzzer 12 rings when simultaneous contact or individual contact designating the broadcast controller 1 is performed.

  The operation unit 13 is a switch for selecting a function when executing a function such as broadcasting or contact.

  The reception volume adjustment knob 14 is a knob for adjusting the volume of the voice output from the reception section, that is, the reception volume, and the transmission volume adjustment knob 15 is the volume of the audio signal converted by the transmission section, that is, transmission. This is a knob for adjusting the volume.

  The status display unit 16 is a display lamp that displays a status such as whether or not the broadcast line is in use and whether or not the communication line is in use. If the broadcast line is in use, the display lamp is turned on. The selection button 17 is a button for selecting a contact address.

  FIG. 4 is an external view of the emergency call device 3 fixedly arranged at a predetermined location in the vehicle. The speaker (receiver) 31 outputs a sound signal from the broadcast controller 1 or the radio terminal 7 of the crew as sound. The emergency buzzer 32 rings when the emergency call switch 33 is pressed.

  The emergency report switch (report operation unit) 33 is a trigger switch for reporting that an emergency has occurred. When pressed by the reporter, the switch is turned on. It is transmitted to the broadcast control device 2. The notification operation unit is not limited to the emergency notification switch shown in FIG. 4 and may be any unit that generates a signal that triggers notification, such as a lever, a handle, a knob, or a touch sensor.

  The microphone (sending unit) 34 converts the voice of the reporter or the like into a voice signal and inputs the voice signal to the broadcast control device 2. The notification indicator lamp 35 is turned on when the emergency notification switch 33 is pressed, and displays that it is in the notification state.

  Although FIG. 4 shows an example of an emergency notification device, the notification device is not limited to an emergency notification, and may be a device that notifies an emergency or other situation. For example, the notification device may be used when a notification device is installed in a toilet or a multipurpose room and a situation that should be reported to a crew member occurs, such as in case of sudden illness or discovery of a suspicious object. In the example of FIG. 4, the emergency call device 3 includes the speaker 31 and the microphone 34 so that the caller and the crew can talk. However, only the emergency call switch (report operation unit) 33 or the emergency call switch It is only necessary that the notification signal is generated, such as 33 and the emergency buzzer 32 alone.

  5 to 7 are diagrams showing display examples of the broadcast control screen device 4, FIG. 5 is a diagram showing an initial screen where no notification is made, FIG. 6 is a diagram showing a state at the time of notification, and FIG. It is a figure which shows the state by which the report was performed in the multipurpose room.

  As shown in FIG. 5, the broadcast control screen device 4 includes a vehicle number display unit 41 that displays a car number (identification information) of each vehicle, a notification state display unit 42 that indicates a state of notification from each notification device, A call state display unit 43 indicating a call state with each reporting device, a reset button 44, and a hold button 45 are provided.

  The broadcast control screen device 4 may draw an image as shown in FIG. 5 to FIG. 7 using a liquid crystal display element or an EL (electro-luminescence) display element. The display part which represents etc. may be provided.

The broadcast control screen device 4 of the present embodiment has a touch panel superimposed on each display unit. When a crew member (operator) touches the display unit, the touched position is detected by the touch panel and displayed at the touched position. An operation for information is input. The reset button 44 and the hold button 45 may be buttons that are displayed on the broadcast control screen device 4 and detected by the touch panel as being pressed, so-called software keys, or may be actual switches.

  Note that FIG. 5 shows a state in which no notification has been made, and there is no display indicating the call state, so the display area is indicated by a dotted line for convenience.

  When a notification is made by a notification device such as the emergency notification device 3, the state of the notification and the state of a call with the notification device are displayed as shown in FIG.

  In the report status display section 42, the display of the reporting device that has reported is turned on. In FIG. 6, black circles indicate lighting and white circles indicate light extinction. Moreover, in the example of FIG. 6, it is possible to display the state of four emergency call apparatuses 3 for every vehicle, and each emergency call apparatus 3 is a number of numbers # 1 to # 4 associated with installation locations. Identified by.

  For example, in FIG. 6, an emergency call is made by the emergency call device 3 such as # 1 and # 2 of the third car and # 1 of the fourth and fifth cars, and the first car, the second car, the seventh car, etc. Indicates that no emergency call has been made.

  When an emergency call is made, the call status display unit 43 first displays [Call]. FIG. 6 shows that # 1 of car # 3 and # 1 of car # 8 are [calling].

  When the crew member (operator) presses the location displayed as [Call] to perform a confirmation operation to enable a call between the broadcast controller 1 and the emergency call device 3, or a wireless terminal as will be described later. When the confirmation operation is performed by 7 and the telephone call between the wireless terminal 7 and the emergency call device 3 is enabled, the broadcast control screen device 4 displays [Call] instead of [Call].

  Further, when the crew member performs a holding operation by pressing the place where [call] is displayed or pressing the hold button 45, the call with the emergency call device 3 is put on hold, or the radio terminal 7 holds the call as described later. When the operation is performed and the call with the emergency call device 3 is put on hold, the broadcast control screen device 4 displays [hold] instead of [call]. Furthermore, when the crew member performs a release operation by pressing a location displayed as [Hold] and resumes the call with the emergency call device 3, the broadcast control screen device 4 replaces the display with [Hold]. [Call] is displayed.

  When the call is terminated and the crew member performs a reset operation by pressing the reset button 44, the broadcast control screen device 4 turns off the display of the call state display unit 43 and the report state display unit 42.

  In the example of FIG. 7, the notification is provided by the notification device provided in the multipurpose room of the fifth car, and the display of the notification state display unit 42 is turned on. When the notification device provided in the multipurpose room does not have a call function, the call state display unit 43 is not displayed as shown in FIG.

  In the above example, one train of No. 1 to No. 10 has been described as shown in FIG. 1, but this embodiment can also be applied when two trains are combined. FIG. 8 is a diagram showing a schematic configuration of a communication system when two organizations are combined. In the example of FIG. 8, the 1st car to the 10th car are the first formation, and the 11th car to the 16th car are the second formation. Each vehicle in the first train and each vehicle in the second train are provided with the same communication system, and are connected to each other by connecting the lead-in wires 8 and 61 when combined. A specific communication method will be described later.

FIG. 9 is an external view of the wireless terminal 7. As shown in FIG. 9, the wireless terminal 7 includes a receiving unit (speaker) 71, a display unit 72, an operation unit 73, and a transmitting unit (microphone) 74. The wireless terminal 7 of the present embodiment is a wireless slave device conforming to the PHS (Personal Handyphone System) standard,
Wireless communication is performed with the wireless base station 6. The wireless terminal 7 is not limited to PHS as long as it can perform wireless communication, and may be one that performs communication by short-range wireless communication such as Bluetooth (registered trademark), wireless LAN, or the like. Based on the notification signal (notification information signal), the wireless terminal 7 displays information indicating at least one of the car number for which the emergency notification switch 33 is turned on and the fact that it is an emergency notification on the display device.

  In the present embodiment, a number (communication number) for specifying a transmission destination and a transmission source is assigned when each wireless terminal 7 makes a call. 10A and 10B are diagrams showing examples of communication number assignment, FIG. 10A is a diagram showing examples of communication numbers assigned in the communication system of the first organization, and FIG. 10B is assignments in the communication system of the second organization. It is a figure which shows the example of the given communication number. The data shown in FIG. 10A is stored as a communication number table (so-called telephone book) in the memory of each wireless terminal 7 in the first organization. The data shown in FIG. 10B is stored as a communication number table in the memory of each wireless terminal 7 in the second organization.

  In FIG. 10A, the communication number of the PHS individual item is a number assigned to each wireless terminal. For example, “AB” is the number of the wireless terminal 7 used by the driver of the first car, and “BC” is the driver of the tenth car. “DE” is the number of the wireless terminal 7 used by the conductor of the ninth car.

  The communication number assigned to the OP → PHS communication call is sent to the wireless terminal 7 as source information when the broadcast operation unit (OP) 1 contacts the wireless terminal 7. For example, when the broadcast operating device 1 in the first train is connected to the radio terminal 7 of the conductor of the ninth car, “HI” is notified as the caller number. That is, when the wireless terminal 7 receives the call, if the caller number is “HI”, the wireless terminal 7 refers to the caller number table and indicates that the call is a call from the broadcast controller (OP) 1 in its own organization. Displayed on the unit 72.

  The communication number assigned to the PHS group is sent as information of the transmission source to each wireless terminal 7 when the broadcast controller 1 contacts the plurality of wireless terminals 7. For example, when the broadcast controller 1 in the first organization is contacted to all the wireless terminals 7 in the first organization, “PQ” is notified as the caller number. That is, when the wireless terminal 7 receives the call, if the transmission source number is “PQ”, the wireless terminal 7 refers to the transmission number table and displays the simultaneous communication on the display unit 72.

  The communication number assigned to the report is sent to the wireless terminal 7 as information of the transmission source when reporting from the reporting device to the wireless terminal 7. For example, when the emergency call device 3 in the first train is connected to the wireless terminal 7 in the first train, “VW” and “VW” are notified as the caller number. That is, when the wireless terminal 7 receives the call, if the caller number is “VW” or “VW”, the wireless terminal 7 displays the emergency number on the display unit 72 by referring to the caller number table.

  The communication number assigned to the PHS broadcast is a number notified to the broadcast control apparatus 2 when the in-vehicle broadcast is performed from the wireless terminal 7. For example, when the broadcast control apparatus 2 receives “WB” or “WB” as the destination number from the wireless terminal 7, the broadcast control apparatus 2 broadcasts as described later.

  The communication number assigned to the PHS simultaneous communication is a number notified to the broadcast control device 2 when performing the simultaneous communication from the wireless terminal 7. For example, when the broadcast control apparatus 2 receives “VC” as the destination number from the wireless terminal 7, the broadcast control apparatus 2 performs simultaneous communication as described later.

  The communication number “UF” is an outside line special number for making a call with the wireless terminal 7 of another organization. For example, when the individual number “AB” is continuously transmitted from the wireless terminal 7 of the first organization to the outside line special number “UF”, the incoming call arrives at the wireless terminal 7 used by the second trainer of the 11th car.

  The communication number “TG” is an outside line special number for making a call with an outside line telephone. For example, when an external line telephone number is continuously transmitted to the external line special number “TG” from the wireless terminal 7, a call to the external line telephone specified by the external line telephone number is connected.

  The numbering system of FIG. 10B is substantially the same as the numbering system of FIG. 10A, except that the second knitting is the other knitting in FIG. 10A, whereas the first knitting is the other knitting in FIG. 10B. Yes. For example, when an emergency call is made from the emergency notification device 3 of the first organization, the communication numbers “VW” and “VW” are notified to the radio terminal 7 of the conductor of the first organization (car 9) according to the numbering system of FIG. 10A. Then, the communication number “XY” is notified to the radio terminal 7 of the conductor of the second train (car 12). On the other hand, when an emergency call is made from the emergency reporting device 3 of the second organization, the communication number “XY” is notified to the radio terminal 7 of the conductor of the first organization (car 9) according to the numbering system of FIG. Communication numbers “VW” and “VW” are notified to the radio terminal 7 of the conductor of the formation (# 12 car).

  FIG. 11 is a diagram illustrating a relationship between a transmission source and a transmission destination of communication performed based on a communication number. In FIG. 11, solid arrows indicate communication lines, and dotted arrows indicate signal paths for communication. For example, when in-car broadcast is performed from the wireless terminal 7, when the operation unit 93 is operated by a crew member and the communication numbers “WB” and “WB” are input, the wireless terminal 7 is addressed to the communication numbers “WB” and “WB”. Make a call. This call signal is received by the radio base station 6 via the radio line, and is received by the radio communication control device 5 provided in the first car via the lead-through line 61. The wireless communication control device 5 sends a tone signal indicating the communication numbers “WB” and “WB” to the broadcast control device 2 of the first car via the communication line 88. The broadcast control device 2 converts the received tone signal, and executes in-car broadcast by starting the in-car broadcast amplifier 24, switching the path of the audio signal (switching), and the like as will be described later.

  Further, when performing simultaneous communication from the wireless terminal 7, when the operation unit 93 is operated by a crew member and the communication numbers “VC” and “VC” are input, the wireless terminal 7 is addressed to the communication numbers “VC” and “VC”. Make a call. This call signal is received by the radio base station 6 via the radio line, and is received by the radio communication control device 5 provided in the first car via the lead-through line 61. The wireless communication control device 5 sends a tone signal indicating the communication numbers “VC” and “VC” to the broadcast control device 2 of the first car via the communication line 88. The broadcast control device 2 converts the received tone signal, and performs simultaneous communication by simultaneously calling the broadcast controller 1, switching the route of the audio signal (switching), and the like as will be described later.

  When the broadcast control device 2 receives an emergency report, the broadcast control device 2 transmits a calling signal and a notification information signal for the wireless terminal 7 to the wireless communication control device 5 via the communication line 88. The wireless communication control device 5 uses the communication numbers “VW” and “VW” indicating emergency notification as notification information, and the communication numbers “VW” and “VW” as source numbers, for example, a predetermined wireless terminal 7 such as a wireless terminal of a conductor ( A call signal (call signal) is transmitted to the communication number “DE”) 7. When receiving the call signal, the wireless terminal 7 refers to the communication number table (phone book) and causes the display unit 72 to display an emergency call according to the caller number “VW” “VW”. Similarly, when receiving a notification from the notification device 30 in the multipurpose room, the wireless communication control device 5 transmits a calling signal (calling signal) to the wireless terminal 7 with the communication number “ZA” as the transmission source number, and the communication number With reference to the table (phone book), a message from the multipurpose room is displayed on the display unit 72 according to the caller source number “ZA”.

When the broadcast operator 1 is operated by the crew member and the communication call of the wireless terminal 7 is selected, the selected communication number is sent from the broadcast control device 2 to the wireless communication control device 5 via the communication line 88, and the wireless network The control measure 5 calls to this communication number. In this embodiment, when the communication number “AB” is selected, the wireless terminal 7 carried by the driver of the first car is called, and when the communication number “DE” is selected, the conductor of the ninth car is carried by the driver. If the communication number “BC” is selected, the wireless terminal 7 carried by the driver of the tenth car is called.
Further, when calling and calling a wireless terminal 7 of another organization, “UF” is added to the beginning of each communication number. For example, in the first organization, when the communication number “UFAB” is selected, the wireless terminal 7 carried by the driver of the 11th car is called, and when the communication number “UFDE” is selected, 1
When the radio terminal 7 carried by the conductor of the No. 2 car is called and the communication number “UFBC” is selected, the radio terminal 7 carried by the driver of the No. 16 car is called. That is, when the outside line special number “UF” is added to the head of the selected communication number, the wireless communication control device 5 of the first organization sets the communication numbers after the outside line special number via the lead-through line 61. The wireless communication control device 5 is notified, and the wireless communication control device 5 in the second organization calls the wireless terminal 7 in the second organization according to the communication number.

  Further, the wireless communication control device 5 includes a train wireless mobile station 52 that is wirelessly connected to a train wireless ground station 59 installed on the ground via a wireless line 86, and train wirelessly moves an audio signal received from the wireless terminal 7. The station 52 sends a radio signal from the telephone network outside the vehicle to the telephone network connected to the train radio ground station 59 via the radio line 86, and receives a voice signal from the telephone network outside the car via the radio line 86. By transmitting to the terminal 7, a call (external line call) between the wireless terminal 7 and a telephone on the telephone network outside the vehicle is enabled. When an external line call is made from the broadcast controller 1, an audio signal input from the broadcast controller 1 is sent to the broadcast controller 2, and the train is transmitted from the broadcast controller 2 via the train radio mobile station 52 of the wireless communication controller 5. While sending to the telephone network outside the vehicle connected to the wireless ground station 59, the voice signal from the telephone network outside the vehicle is received by the wireless communication control device 5 via the wireless line 86, and the broadcast operation device 1 is sent via the broadcast control device 2. By transmitting to the telephone, a call (external line call) between the broadcast controller 1 and a telephone on the telephone network outside the vehicle is made possible.

  FIG. 12 is a diagram showing a specific example of the system configuration, and FIG. 13 is a detailed diagram of the broadcast control apparatus 2. As shown in FIG. 12, the broadcast controller 1 includes a broadcast indicator lamp 161, a contact indicator lamp 163, a PHS indicator lamp 165, and a call indicator lamp 166. The broadcast indicator lamp 161, the contact indicator lamp 163, the PHS indicator lamp 165, and the call indicator lamp 166 are provided in the status display section 16 of FIG.

  The broadcast controller 1 also has a broadcast switch 132, a contact switch 131, a PHS switch 133, and a simultaneous switch 134. These switches 131 to 134 are provided in the operation unit 13 in FIG. 1 and select functions such as broadcasting and communication. Although not shown in FIG. 12, the operation unit 13 of the broadcast controller 1 has, for example, a driver's wireless terminal (wireless terminal having a communication number “AB” or “BC”) as a switch for calling PHS. 7 and a switch for calling the radio terminal of the conductor (wireless terminal of communication number “DE”) 7. Also, the broadcast control device 2 has a signal line (not shown) for transmitting a signal indicating which PHS call is made to the main control unit 22 when the switch for calling the PHS is turned on. Yes.

  The broadcast switch 132 is connected to a switch (a double switch in the example of FIG. 13) 222 of the broadcast control device 2, and when the broadcast switch 132 is turned on by a crew member, the switch 222 is turned on. A predetermined voltage is applied to the broadcast indicator lamp 161 to turn on the broadcast indicator lamp 161.

  The contact switch 131 is connected to the switch 223 of the broadcast control device 2. When the contact switch 131 is turned on by a crew member, the switch 223 is turned on, and a predetermined voltage is applied to the contact indicator lamp 163 via the switch 223. Then, the contact indicator lamp 163 is turned on.

The PHS switch 133 is connected to the main control unit 22 of the broadcast control device 2. When the PHS switch 133 is switched to the ON state by a crew member, this state change is used as a communication signal for the wireless terminal (PHS terminal) 7. To enter. The main control unit 22 to which this communication signal is input turns on the PHS indicator lamp 165. In FIG. 12, only one PHS switch 133 is shown. However, a plurality of PHS switches 133 may be provided for each wireless terminal to be contacted. For example, a PHS switch 133 is provided for each wireless terminal such as the driver of the first car, the conductor of the ninth car, the driver of the tenth car, etc., and the main control unit 22 calls and calls depending on which PHS switch 133 is pressed. The wireless terminal 7 may be specified.

  The general switch 134 is connected to the general call circuit 228 of the broadcast control device 2, and when the general switch 134 is switched to the ON state by a crew member, the state change is input to the general call circuit 228 as a general call signal.

  The call indicator lamp 166 and the call buzzer 12 are connected to the coincidence circuit 226 of the broadcast control device 2, and when the broadcast controller 1 is called, a predetermined voltage is applied by the coincidence circuit 226, and the call indicator lamp 166 is It lights up and the buzzer 12 sounds.

  In the transmitter / receiver 11, the receiver circuit of the receiver unit and the transmitter circuit of the transmitter unit are connected to the hybrid 221 of the broadcast control device 2, and an audio signal separated by the hybrid 221 is received and voice is output from the receiver unit. The voice signal from the transmitter is sent to the subsequent circuit via the hybrid 221.

  The selection button 17 is a switch for selecting the broadcast operating device 1 to be called when the crew members are communicated, and is connected to the encoder 227 of the broadcast control device 2.

  The lead-in line 8 includes an emergency buzzer line 83 and a contact calling line 84 in addition to the broadcast line 81, the communication line 82, and the data line 85 described above. The emergency buzzer line 83 is connected to an emergency bell 141 provided in the driver's cab or the conductor's cabin. When the emergency call switch 33 is pressed and an emergency call is made, a predetermined voltage is applied to the emergency bell. 141 is sounded. The contact call line 84 transmits a call signal for the broadcast operator 1 in order to specify the broadcast operator 1 to be called when making a contact.

  The wireless terminal control unit 5 includes a modulation / demodulation unit (MODEM) 53, a processing unit 54, and a communication control unit 55. The modulation / demodulation unit 53 is an interface that transmits and receives audio signals and control signals to and from the network control unit 23 via the communication line 88. In the present embodiment, the modulation / demodulation unit 53 demodulates an analog signal such as an audio signal or a control signal received from the network control unit 23 into a digital signal, and also outputs a digital signal such as the audio signal or the control signal processed by the processing unit 54. The signal is modulated into an analog signal and transmitted to the network control unit 23 via the communication line 88.

  The communication control unit (CCU) 55 is connected via a communication line 61 to a radio base station (access point) that has been installed between each vehicle. The communication control unit 55 transmits and receives audio signals and control signals to and from the radio base station via the communication line 61.

  Based on the control signal received from the network control unit 23, the processing unit 54 performs call control such as calling the wireless terminal 7, establishing a call, and disconnecting the call. Further, the processing unit 54 is based on a control signal received from the wireless terminal 7 via the wireless base station, a tone signal for calling the broadcast controller 1, an off-hook signal (response signal) for responding to a call, A control signal such as an on-hook signal (disconnect signal or call end signal) for ending the call is sent to control the call with the in-car call system.

The reset switch 271 is provided in a switchboard or the like of each vehicle, and a reset signal for resetting the notification state is input to the broadcast control device 2 of the vehicle by switching the switch.

  The notification switch 38 is a switch provided in the notification device 30 installed in the multipurpose room, and when the ON / OFF state is switched by the reporter, this state change is used as a notification signal to notify the main control unit 22 of the broadcast control device 2. Enter.

  Next, the configuration of the broadcast control apparatus 2 will be described. The switch 222 switches connection / disconnection between the handset 11 of the broadcast controller 1 and the signal line 281 on the broadcast line side. For example, when the switch 222 is turned on by the broadcast switch 132, the switch 222 passes the audio signal from the handset 11, sends it to the signal line 281 through the transformer 224, and sends it to the in-vehicle broadcast amplifier 24 and the broadcast line 81. .

  The audio signal sent to the broadcast line 81 is transmitted to the in-vehicle broadcast amplifier 24 via the signal line 281 in all vehicles. At this time, when the broadcast start condition is sent to the in-vehicle broadcast amplifier 24 by the main control unit 22, the switches 242 and 244 of the in-vehicle broadcast amplifier 24 are turned on, and the audio signal input from the signal line 281 is converted into the transformer 241 and the switch 242. The audio signal that is input to the output amplifier 243 via the output amplifier and amplified by the output amplifier 243 is sent to the speaker 9 via the switch 244 and the transformer 245, and is output from the speaker 9 as sound.

  The switch 223 switches connection / disconnection between the handset 11 of the broadcast controller 1 and the signal line 282 on the communication line side. For example, when the contact switch 131 is turned on, the switch 223 passes the audio signal from the handset 11, sends it to the signal line 282 via the transformer 225, and sends it to the contact line 82 and the notification control unit 26. . In addition, the switch 223 that is turned on passes an audio signal transmitted from another vehicle via the communication line 82 and transmitted via the signal line 282 and the transformer 225, and the switch 223 of the handset 11 via the hybrid 221. Output as audio from the receiver.

When the selection button 17 is pressed, the encoder 227 sends a call signal corresponding to the type of the pressed button 17 to the signal lines 841 to 844 and transmits the call signal to another vehicle via the call line 84. In the example of FIGS. 12 and 13, four signal lines 841 to 844 are used. Therefore, when the voltage level of one signal line is a binary value of Hi or Lo, 2 ⁴ = 16 kinds of calling signals Can send. One of the 16 call signals is used as a signal for simultaneous call. When the simultaneous call circuit 228 is turned on or when a signal indicating simultaneous communication from the wireless terminal (PHS terminal) 7 is received from the main control unit 22 via the signal line 292, the general calling circuit 228 A general call signal is sent to signal lines 841 to 844.

When the call signal transmitted to the signal lines 841 to 844 matches the identification information of the broadcast controller 1 connected to the match circuit 226, the match circuit 226 sounds the call buzzer 12 and the call indicator lamp. 166 is turned on. In the present embodiment, as the identification information of the broadcast controller 1, the car number of the vehicle on which the broadcast controller 1 is provided is used. For example, when calling the broadcast controller 1 of the ninth car from the broadcast controller 1 of the first car, the crew member of the first car pushes the selection button 17 indicating the ninth car, and the encoder 227 sends a call signal indicating the ninth car to the signal line 841. To 844. This calling signal is transmitted to each vehicle via the calling line 84, and matching is determined by the matching circuit 226 of each vehicle. Accordingly, in the coincidence circuit 226 for the ninth car, the call signal and the identification information of the broadcast controller 1 coincide with each other, and the call buzzer 12 and the call indicator lamp 166 are operated. The identification information of 1 does not match, and the call buzzer 12 and the call indicator lamp 166 are not operated. When a general call signal is sent from the general call circuit 228, it is transmitted to all the vehicles via the call line 84, and the match circuit 226 of all the vehicles is regarded as a match and the call buzzer 12 and the call indicator lamp 166 is operated.

  The switch drive circuit 253 is a drive unit that switches ON / OFF of the switch 252. When a confirmation signal for an emergency report is received from the main control unit 22, the switch drive circuit 253 turns on the switch 252 and holds it from the main control unit 22. When a reset signal is received, the switch 252 is turned off. The switch 252 switches connection or disconnection between the voice line on the emergency call apparatus 3 side and the signal line 282 on the connection line 82 side. For example, when the switch 252 is turned on by the switch drive circuit 253, the switch 252 passes the audio signal input from the microphone 34 via the hybrid 251 and the transformer, and sends it to the connection line 82 via the signal line 282. In addition, the switch 252 that is turned on passes an audio signal transmitted from another vehicle via the communication line 82 and transmitted via the signal line 282, and outputs the audio signal from the speaker 31 via the hybrid 251. .

  The notification detection circuit 261 of the emergency control unit (CAU) 26 detects this change in state as an emergency notification signal when the emergency notification switch 33 of the emergency notification device 3 is switched to the ON state. An emergency notification signal is transmitted to the switch drive circuits 262 and 263 of the control unit (CAU) 26.

  The switch drive circuit 262 is a drive unit that switches ON / OFF of the switch 269. The switch drive circuit 262 receives the emergency notification signal and turns on the switch 269. When the switch 269 is turned on, a predetermined voltage is applied to the emergency buzzer line 83 via the switch 269, and the emergency buzzer 141 connected to the emergency buzzer line 83 sounds.

  The switch drive circuit 263 is a drive unit that switches ON / OFF of the switch 268. The switch drive circuit 263 receives the emergency notification signal and turns on the switch 268. When the switch 268 is turned on, a predetermined voltage is applied to the emergency buzzer 32 of the emergency call device 3 through the switch 268, and the emergency buzzer 32 sounds.

  When the main control unit 22 receives a signal indicating that the emergency notification has been confirmed from the wireless terminal 7 or the broadcast control screen device 4 after the emergency notification, the main control unit 22 transmits a confirmation signal to the switch drive circuits 253 and 263 and the lighting circuit 264. Upon receiving the confirmation signal, the switch drive circuit 263 turns off the switch 268 (released state), and stops the emergency buzzer 32 from ringing.

  The lighting circuit 264 is a drive unit that switches on / off of the notification display lamp 35 and turns on the notification display lamp 35 in response to a confirmation signal.

  Further, when the main control unit 22 receives a signal to hold the call with the emergency call device 3 from the wireless terminal 7 or the broadcast control screen device 4, the main control unit 22 transmits a hold signal to the switch drive circuit 253 and the lighting circuit 264, When a reset signal from the reset switch 271 is received, the reset signal is transmitted to the notification detection circuit 261, the switch drive circuits 253 and 262, and the lighting circuit 264.

  When the lighting circuit 264 receives a hold signal or a reset signal from the main control unit 22, the lighting circuit 264 turns off the notification display lamp 35.

  When the switch drive circuit 262 receives the hold signal or the reset signal from the main control unit 22, the switch drive circuit 262 turns off the switch 269, stops the application of the voltage to the emergency buzzer line 83, and stops the emergency buzzer 141 from ringing. .

  As shown in FIG. 13, the main control unit 22 includes an input / output interface (I / O) 62, a CPU 63, a memory 64, and a communication control unit 65.

  The input / output interface 62 includes a control signal from the wireless communication system via the network control unit 23 and the signal line 297, a communication signal from the PHS switch 133, an emergency notification signal from the emergency notification device 3, and a reset from the reset switch 271. A signal, a notification signal from the notification device 30, and the like are input. Further, the input / output interface 62 sends a call signal (emergency notification signal) of the wireless terminal 7 to the network control unit 23 via the signal line 296, and sends a confirmation signal from the wireless terminal 7 via the signal line 295, A signal indicating that in-vehicle broadcasting is to be performed is transmitted from the wireless terminal 7 via the line 291, and a signal indicating simultaneous communication is transmitted from the wireless terminal 7 via the signal line 292. As described above, the input / output interface 62 appropriately transmits a confirmation signal, a hold signal, and a reset signal to the switch drive circuits 253, 263, 262 and the lighting circuit 264.

  Further, the input / output interface 62 outputs a signal for starting voice guidance to the DCU 21 when an off-hook signal is received from the wireless communication system at the time of reporting.

  The communication control unit (CCU) 22 is a device that controls communication with the data communication device 89. In this embodiment, RS485 is adopted as a communication standard.

  The memory 64 is a main storage device (main memory) that is directly accessed by the CPU 63. In addition to the main memory, an auxiliary storage device that stores an embedded OS, application software (control program), and the like may be provided.

The CPU 63 is a processor that processes signals received via the input / output interface 62 and the communication control unit 65 to realize functions of the main control unit 22 such as control signal conversion. Further, the CPU 63 generates a signal for generating a calling signal for the wireless terminal 7 in response to turning on the notification switches (trigger switches) 33 and 38 of the notification devices 3 and 30, and responds to turning on the notification switches 33 and 38. It also functions as an output device that outputs a notification information signal including notification information. Note that the report information may include information indicating the type of report, such as an emergency report or a report other than an emergency report (in this example, a report by the report device 30). In addition, the report information may include information indicating a report location such as a car number of a vehicle that has reported, a deck in a vehicle, a passenger car, a toilet, and a place where a reporting device is notified.

  The input / output unit 233 of the network control unit 23 transmits the control signal received from the wireless communication control device 5 to the main control unit 22 via the signal line 297. The control signal includes, for example, a signal for broadcasting from the wireless terminal 7 (tone signal “WB”), a signal for simultaneous communication from the wireless terminal (tone signal “VC”), an off-hook signal of the wireless terminal 7 (Response signal), on-hook signal (disconnection signal or end signal) of the wireless terminal 7, confirmation signal (tone signal “EC”), hold signal (tone signal “EW”).

  The input / output unit 233 transmits the calling signal of the wireless terminal 7 and the communication signal of the wireless terminal 7 received from the main control unit 22 to the wireless communication control device 5. Further, the input / output unit 233 transmits / receives an audio signal to / from the modulation / demodulation unit 53 of the wireless communication control device 5.

  The switch drive circuit 239 is a drive unit that switches ON / OFF of the switch 232 and receives a communication signal from the wireless terminal 7 via the signal line 292 or a confirmation signal from the wireless terminal 7 via the signal line 295. Switch 232 is turned on.

The switch 232 is a switch for connecting or disconnecting the signal line 282 on the communication line side and the voice line on the wireless communication system side. When the switch 232 is in the ON state, the voice signal from the wireless communication system is passed through the signal line 282. The voice signal transmitted to the communication line 82 and transmitted from the communication line 82 via the signal line 282 is transmitted to the wireless communication control device 5 via the input / output unit 233.

  The switch 231 is a switch for connecting or disconnecting the signal line 281 on the broadcast line side and the voice line on the wireless communication system side. When the switch 231 is in an ON state, the audio signal from the wireless communication system is transmitted via the signal line 281. In addition to being transmitted to the broadcast line 81, the audio signal transmitted from the broadcast line 81 via the signal line 281 is transmitted to the wireless communication control device 5 via the input / output unit 233.

  When the DCU 21 receives a signal for starting the voice guidance from the main control unit 22, the DCU 21 outputs the voice guidance (voice signal) and transmits it to the wireless communication control device 5 via the input / output unit 233 of the network control unit 23. .

  FIG. 14 is a diagram showing a sequence when broadcasting from the broadcast controller 1. In FIG. 14, a signal path when broadcasting is indicated by a continuous arrow, and a step number is given in the execution order to indicate a sequence. The configuration of the communication system shown in FIG. 14 is the same as that shown in FIG. 12, but some symbols not used in the description of the sequence are omitted because the drawing is complicated. The signal path notation, step number notation, and omission of some symbols by the continuous arrows are the same in the following diagrams showing the sequences.

  First, when the crew member pushes the broadcast switch 132 to turn on (step S1), the switch 222 of the broadcast control device 2 is turned on (step S2), and a predetermined voltage is applied to the broadcast indicator lamp 161 via the switch 222. Then, the broadcast indicator lamp 161 is turned on (step S3). When the switch 222 is turned on, the audio signal input from the broadcast line 81 to the coil 224 via the signal line 281 is transmitted to the handset 11 of the broadcast operation unit 1 via the switch 222 and the hybrid 221 in the ON state. And output as voice from the receiver of the handset 11 (step S4). Then, when the switch 222 is ON and the crew member's voice is input to the transmitter (microphone) of the handset 11, the voice is converted into a voice signal by the transmitter (microphone) (step S5). The signal is input to the transformer 224 via the hybrid circuit 221 and the switch 222 (step S6). The audio signal output from the transformer 224 is sent to the broadcast line 81 of the lead-in line 8 via the signal line 281 and transmitted to all the vehicles (step S7).

  The audio signal transmitted through the broadcast line 81 is input to the in-vehicle broadcast amplifier 24 through the signal line 281 in each vehicle (step S9). At this time, when the broadcast start condition is sent by the main control unit 22 to the in-vehicle broadcast amplifier 24, the switches 242 and 244 are turned on, the audio signal is input to the output amplifier 243 via the coil 241 and the switch 242, and the audio signal is output. Amplified by the amplifier 243 (step S10) and output from the speaker 9 via the switch 244 and the transformer 245 (step S11).

  FIG. 15 is a diagram illustrating a sequence in a case where a call is performed between broadcast controllers. When the contact switch 131 is pressed by the crew member to be turned on (step S21), the switch 223 of the broadcast control device 2 is turned on (step S22), and a predetermined voltage is applied to the contact indicator 163 via the switch 223. The indicator lamp 163 is turned on (step S23). Then, the crew member's voice is converted into a voice signal by the transmitter (microphone) of the handset 11 and input to the transformer 225 via the hybrid circuit 221 and the switch 223 (step S24). The audio signal output from the transformer 225 is sent to the broadcast control device 2 of another vehicle via the connection line 82 (step S25).

The audio signal transmitted through the communication line 82 is input to the broadcast control device 2 via the signal line 282 in each vehicle (step S26), passes through the transformer 225 and the ON switch 223 (step S27), and passes through the hybrid circuit 221. And output from the receiver (speaker) of the handset 11 (step S28). Similarly, an audio signal is sent from the broadcast control device 2 of another vehicle via the communication line 82 (steps S21 to S25), and the audio signal input to the broadcast control device 2 of the vehicle is converted into a transformer 225 and a switch 223. And from the receiver (speaker) of the handset 11 via the hybrid circuit 221 (steps S26 to S28). As a result, communication can be made between the broadcast controllers.

  FIG. 16 is a diagram illustrating a sequence when in-vehicle broadcasting is performed from the wireless terminal 7, and FIG. 17 is a diagram illustrating a flow when in-vehicle broadcasting is performed from the wireless terminal 7.

When the wireless terminal 7 transmits a communication number “WB” indicating broadcasting by the operation of the crew (step S110), the wireless communication control device 5 receives the communication number “WB” via the wireless base station 6, and transmits the communication line “WB”. A tone signal (control signal) indicating the communication number “WB” is sent to the network control unit 23 via 88 to request in-car broadcast and establish a connection for sending an audio signal (step S120).

  The network control unit 23 notifies the main control unit 22 of a control signal for requesting in-vehicle broadcast via the signal line 297 (step S130).

The main control unit 22 sends a signal to the network control unit 23 via the signal line 291 to instruct the connection between the line that receives the audio signal from the radio communication system side and the broadcast line, and the instruction to output the broadcast start condition. Based on the signal, the network control unit 23 turns on the switch 231, sends an audio signal input from the wireless terminal 7 via the input / output unit 233 to the signal line 281 through the switch 231, and sends it to the broadcast line 81 ( Step S140). The network control unit 23
The broadcast activation condition is output to the in-vehicle broadcast amplifier 24, and the in-vehicle broadcast amplifier 24 is activated (step S150).

  When the switch 231 is turned on, the audio signal from the wireless communication control device 5 is sent to the broadcast control device 2 of another vehicle via the broadcast line 81 and to the in-vehicle broadcast amplifier 24 via the signal line 281. It is input, amplified by the in-car broadcast amplifier 24 and output from the speaker 9. Also, the audio signal sent from the broadcast line 81 to another vehicle is input to the broadcast control device 2 via the signal line 281 in each vehicle, amplified by the in-vehicle broadcast amplifier 24, and output from the speaker 9 of each vehicle. As a result, in-car broadcast is performed (step S160).

  Then, when the crew member finishes broadcasting and hangs up, the wireless terminal 7 transmits a disconnection signal (step S170).

  The wireless communication control device 5 that has received the disconnection signal via the wireless base station 6 sends a disconnection signal (on-hook signal) to the network control unit 23 via the communication line 88 to cancel the in-car broadcast request and from the wireless terminal 7. Is stopped (step S180).

The network control unit 23 sends an on-hook signal to the main control unit 22 via the signal line 297 to notify cancellation of the in-car broadcast request (step S).
190).

The main control unit 22 sends a signal to the network control unit 23 via the signal line 291 to instruct to stop outputting the audio signal from the wireless terminal 7 (step S200).

  Based on the signal, the network control unit 23 turns off the switch 231 and stops outputting the audio signal from the wireless terminal 7 and stops outputting the broadcast activation condition to the in-vehicle broadcast amplifier 24 (step S210).

  FIG. 18 is a diagram illustrating a sequence in the case where simultaneous communication is performed from the wireless terminal 7 to the broadcast controller 1, and FIG. 19 is a diagram illustrating a flow in the case where simultaneous communication is performed from the wireless terminal 7 to the broadcast controller 1.

When the wireless terminal 7 transmits the communication number “VC” indicating simultaneous communication by the operation of the crew (step S230), the wireless communication control device 5 receives the communication number “VC” via the wireless base station 6, and A tone signal (control signal) indicating the communication number “VC” is sent to the network control unit 23 to request simultaneous communication and to establish a connection for sending a voice signal (step S240).

  The network control unit 23 sends a tone signal (control signal) indicating the communication number “VC” via the signal line 297 to notify the main control unit 22 of a request for simultaneous communication, that is, a call to the all broadcast operation device 1. (Step S250).

  The main control unit 22 determines the presence / absence of communication (priority operation) such as notification or communication that has already been executed (step S260). If there is communication already being executed, that is, if there is a priority operation (step S260, NG), the process waits until the priority operation ends, and returns to step S260 after the priority operation ends (step S265).

When it is determined in step S260 that there is no priority operation (step S260, OK), the main control unit 22 determines the presence or absence of the requested communication at the same time (step S27).
0). Here, when there is a communication requested at the same time, the priority is confirmed. The priority is, for example, notification by the emergency notification device 3> notification by the notification device in the multipurpose room> simultaneous communication from the wireless terminal 7> communication call from the broadcast operation device 1 to the wireless terminal 7 = from the wireless terminal 7 to the broadcast operation device 1 In the order of individual communication to That is, in this example, when it is simultaneously with a report having a higher priority than the simultaneous communication from the wireless terminal 7 (step S270, NG), it waits until this priority operation ends, and returns to step S260 after the priority operation ends. (Step S265).

If it is determined in step S270 that there is no communication requested at the same time or the priority of the communication requested at the same time is low (step S270, OK), the main control unit 22 receives a voice signal from the radio communication system side. A signal for instructing the connection to the communication line 82 is sent to the signal line 292, and the network control unit 23 turns on the switch 232 based on the signal from the signal line 292 (step S280). Further, based on the signal sent from the main control unit 22 via the signal line 292, the simultaneous call circuit 228 outputs a call signal indicating the general call for a predetermined period (for example, 1 second) (step S).
290). The call signal output from the general call circuit 228 is sent to the call line 84 via the signal lines 841 to 844, and is input to the matching circuit 226 of each vehicle to determine whether the call is a corresponding call. Since this example is a simultaneous call and all the broadcast controllers 1 correspond, all the matching circuits 226 ring the call buzzer 12 and turn on the call indicator lamp 166.

  On the other hand, the audio signal sent from the wireless communication control device 5 via the communication line 88 and input to the network control unit 23 via the input / output unit 233 is sent to the broadcast control device 2 of another vehicle via the connection line 82. (Step S300).

In each broadcast operation device 1 that has been called, when the contact switch 131 is pressed by the crew member and a response operation is performed, the switch 223 of the broadcast control device 2 is turned on and the contact indicator lamp 163 is lit (step S310). Then, an audio signal input to the broadcast control device 2 via the communication line 82 or an audio signal from the network control unit 23 is received by the receiver (speaker) of the handset 11 via the transformer 225, the switch 223, and the hybrid circuit 221. ) Is output.

The crew member's voice is converted into a voice signal by the transmitter (microphone) of the handset 11, and the voice signal is input to the network control unit 23 via the hybrid circuit 221, the switch 223, and the transformer 225 via the switch 232. Then, it is sent to the wireless communication control device 5 via the input / output unit 233 and the communication line 88, and is sent to the wireless terminal 7 by the wireless communication control device 5. This enables a call between each broadcast controller 1 and the wireless terminal 7 (step S320).

  In this example, since a plurality of broadcast controllers 1 participate in the call, even when any one of the broadcast controllers 1 terminates the call (step S323), the other broadcast controllers 1 and the wireless terminal 7 Is maintained (step S325).

  Then, when the crew member who operates the wireless terminal 7 completes the contact and performs an operation to hang up the telephone, the wireless terminal 7 transmits a disconnection signal (step S330).

The wireless communication control device 5 that has received the disconnection signal via the wireless base station 6 sends a disconnection signal (on-hook signal) to the network control unit 23 via the communication line 88, thereby canceling the simultaneous communication request and the wireless terminal 7. Is notified of the suspension of audio output from (step S34).
0).

The network control unit 23 notifies the cancellation of the simultaneous communication request by sending an on-hook signal to the main control unit 22 via the signal line 297 (step S).
350).

  The main control unit 22 sends a signal for instructing the network control unit 23 to stop outputting the audio signal from the wireless terminal 7 to the network control unit 23 via the signal line 292 (step S360).

  FIG. 20A is a diagram showing a flow in the case of individually communicating from the broadcast operating unit (OP) 1 to the wireless terminal 7, and FIG. 20B is a diagram showing a sequence in the case of individually contacting from the broadcast operating unit 1 to the wireless terminal 7. It is. When the PHS switch 133 corresponding to the wireless terminal 7 to be called by the crew member is pushed and turned ON, the main control unit 22 calls the wireless terminal 7 to change the state of the PHS switch 133 via the communication line 293. Is detected as a signal to perform (step S410). Although FIG. 12 shows only one system of the PHS switch 133 and the communication line to which the PHS switch is connected, a plurality of PHS switches 133 and communication lines may be provided. For example, a plurality of PHS switches are provided in association with the wireless terminal 7 (contact address) that calls and contacts, and a lookup table that stores contact information based on which of the plurality of PHS switches 133 is turned on. The corresponding contact information, for example, the radio terminal 7 of the driver, the radio terminal 7 of the conductor, and the like are specified.

  The main control unit 22 determines the presence or absence of communication (priority operation) such as notification or communication that has already been executed (step S420). If there is communication already being executed, that is, if there is a priority operation (step S420, NG), the process returns to the initial state and starts again from step S410.

When it is determined in step S420 that there is no priority operation (step S420, OK), the main control unit 22 determines the presence or absence of the requested communication at the same time (step S43).
0). Here, when there is a communication requested at the same time, the priority is confirmed. The priority is, for example, notification by the emergency notification device 3> notification by the notification device in the multipurpose room> simultaneous communication from the wireless terminal 7> communication call from the broadcast controller 1 to the wireless terminal 7> from the wireless terminal 7 to the broadcast controller 1 In the order of individual communication to That is, in this example, when the communication is higher in priority than the communication call from the broadcast controller 1 to the wireless terminal 7 (step S430, NG), the process returns to the initial state and starts again from step S410.

  When it is determined in step S430 that there is no communication requested at the same time or the priority of the communication requested at the same time is low (step S430, OK), the main control unit 22 calls the wireless terminal 7 via the signal line 294. The control signal, for example, the communication number of the wireless terminal 7 to be contacted and the calling signal is sent to the network control unit 23 to notify the calling of the wireless terminal 7 and the PHS indicator lamp 165 is turned on to the handset 11. (Step S440). As shown in FIGS. 10A and 10B, for example, when calling the wireless terminal 7 of the conductor of the same organization from the handset 11 of the first organization, the communication number of the destination is “DE”, Will be "HI".

  The network control unit 23 notifies the wireless communication control device 5 of the communication number and the calling signal of the wireless terminal 7 to be called through the communication line 88 and requests the calling of the wireless terminal 7 (step S450). When the PHS switch 133 is turned on, that is, the broadcast control device 2 that has received a request for calling the wireless terminal 7 is a broadcast control device 2 other than the first car and is not directly connected to the wireless communication control device 5. Then, a call request is sent to the broadcast control device 2 of the first car via the data communication device 3 and communication with the wireless communication control device 5 is performed via the network control unit 23 of the first car.

  The wireless communication control device 5 determines whether or not the call requested from the network control unit 23 is possible (step S460).

When it is determined that the calling wireless terminal 7 cannot be called due to busy (step S460, No), the crew member is notified that the calling cannot be performed by sending a busy sound to the broadcast controller 1 (step S460). S465).

On the other hand, when it is determined in step S460 that the call can be made (step S460, Ye
s) The wireless communication control device 5 sends a call signal to the wireless terminal 7 to make a call (step S470). In response to this call, when an operation to take a call (off-hook) is performed by the crew member, the wireless terminal 7 sends a response signal to the wireless communication control device 5 (step S48).
0).

The wireless communication control device 5 receives the response signal, establishes a call with the wireless terminal 7, and enables the network control unit 23 to output the audio signal received from the wireless terminal 7 (
Step S490).

  The network control unit 23 notifies the main control unit 22 of a response signal (off-hook signal) via the signal line 297 so that the main control is performed to transmit and receive an audio signal so as to enable a call with the wireless terminal 7. The unit 22 is notified (step S500).

The main control unit 22 sends a contact signal to the network control unit 23 via the signal line 292 and turns on the switch 232 in the same way as in the example of FIG. Audio signals are transmitted / received (step S510).

  When the switch 232 is turned on, the audio signal from the wireless terminal 7 is input from the wireless communication control device 5 to the network control unit 23 of the first car via the input / output unit 233, and the switch 232, the signal line 282, and the communication are connected. It is sent to the broadcast control apparatus 2 of another vehicle via the line 82 (step S520).

  In the broadcast control device 2 of the vehicle that made the call, the audio signal sent to the communication line 82 is output from the receiver (speaker) of the handset 11 via the transformer 225, the switch 223, and the hybrid circuit 221.

The crew member's voice is converted into a voice signal by the transmitter (microphone) of the handset 11 and input to the CPAMP, and the voice signal is sent to the voice line by the hybrid circuit 221 and the PHS switch 133 is turned on. At this time, the data is sent to the communication line 82 via the switch 223 turned on by the control of the main controller 22, the transformer 225, and the signal line 282. The audio signal sent to the communication line 82 is input to the network control unit 23 via the signal line 282 and the switch 232 of the first car, and is sent to the wireless terminal 7 via the wireless communication control device 5. Thereby, a call is made between each broadcast controller 1 and the wireless terminal 7 (step S530).

  After the call, when a crew member on the wireless terminal 7 side ends the call (on-hook) at the wireless terminal 7 to end the call (step S540), the wireless communication control device 5 broadcasts via the network unit 23. A busy tone is sent to the controller 1 (step S465).

  When the busy sound is transmitted in step S465, the crew on the broadcast controller 1 turns off the PHS switch 133, or the crew on the broadcast controller 1 turns off the PHS switch 133 to end the call. When turned off, the main control unit 22 detects this state change (OFF) of the PHS switch 133 (step S550), sends a disconnection signal to the network control unit 23 via the signal line 294, and stops calling the wireless terminal 7. Is notified (step S560). The network control unit 23 notifies the wireless communication control device 5 of the disconnection signal via the input / output unit 233 and the communication line 88, and returns to the initial state (step S570).

  FIGS. 21 to 28 are diagrams illustrating a flow when an emergency call is received, FIG. 29 is a diagram illustrating a sequence of a notification operation, FIG. 31 is a diagram illustrating a sequence when voice guidance is output, and FIG. FIG. 33 is a diagram illustrating a sequence for performing a call between the emergency call device and the wireless terminal, FIG. 33 is a diagram illustrating a sequence of a confirmation operation by the wireless terminal, and FIG. 34 is a diagram illustrating a sequence of a hold operation by the wireless terminal. 35 is an explanatory diagram of the reset operation by the broadcast control screen, and FIG. 36 is an explanatory diagram of the reset operation by the reset switch of the switchboard. In FIGS. 29 and 31 to 36, a signal path when a call is made between the wireless terminal 7 and the emergency call device 3 in response to an emergency call is indicated by continuous arrows, and step numbers are assigned in the order of execution. showed that. In FIG. 21 to FIG. 28, when one step is further subdivided to indicate a sequence, a branch number is added after the step number.

When the caller presses the emergency call switch 33 of the emergency call device 3, the emergency call signal from the emergency call device 3 is detected by the notification control unit 26 of the broadcast control device 2 (step S610). When the emergency report switch 33 is pressed and the emergency report switch, which is a push button switch, changes to the ON state, this state change is transmitted as an emergency report signal to the report control unit 2.
6 is detected by the notification detection circuit 261. The report detection circuit 261 notifies an emergency report signal to the main control unit 22 and the switch drive circuits 262 and 263 (step S620). When the switch drive circuit 263 receives the emergency notification signal, the switch drive circuit 263 switches the switch 268.
Is turned on, and a predetermined voltage is applied to the emergency buzzer 32 of the emergency call device 3 via the switch 268 to sound the emergency buzzer 32 (step S620-2 (FIG. 29)). Further, when receiving the emergency notification signal, the switch drive circuit 262 turns on the switch 269, applies a predetermined voltage to the emergency buzzer line 83 via the switch 269, and operates the driver's cab via the emergency buzzer line 83. In addition, the emergency buzzer 141 is sounded by supplying electric power to the emergency buzzer 141 provided in the vehicle compartment or the like (step S620-3 (FIG. 29)).

  When a plurality of emergency call devices 3 are provided in one vehicle, the notification detection circuit 261 specifies from which emergency call device 3 the call has been made based on the connection relationship, and this emergency call device 3. The identification information (# 1 to # 4 in this example) is added to the emergency call signal and transmitted to the main control unit 22. The main control unit 22 stores information on the installation location (such as a guest room, a deck, and a toilet) of the emergency call device 3 in association with this identification information, and based on the identification information of the emergency call device 3 that has made the report. The report location may be specified.

  Based on the emergency notification signal, the main control unit 22 generates synchronization data indicating the status of the notification, and sends the synchronization data to the broadcast control screen device (selection device) 4 via the data communication device 89. The state is displayed (step S630). Here, the main control unit 22 adds identification information (in this example, No. 1 to No. 16) for identifying the vehicle to the synchronization data, and displays the number of the vehicle that has been notified. Data such as a report signal, report location, identification information (car number) of the vehicle with the report is also transmitted to other vehicles via the data line 85, and the data is also shared with other vehicles. The same display can be performed. Based on the synchronization data, the broadcast control screen device 4 lights up the location corresponding to the number of the car and the emergency call device 3 on which the report is displayed on the report status display unit 42 as shown in the example of FIG. [Call] is displayed on the display unit 43.

  The main control unit 22 determines whether there is a report to be called, that is, whether there is a report that is not in a call or on hold (step S640).

  If it is determined in step S640 that there is a report to be called, the main control unit 22 determines the presence or absence of communication (priority operation) such as a report or communication that has already been executed (step S650). If there is communication already being executed, that is, if there is a priority operation (step S650, NG), the process waits until the priority operation ends (step S655), and returns to step S640 after the priority operation ends.

When it is determined in step S650 that there is no priority operation (step S650, OK), the main control unit 22 determines the presence or absence of the requested communication at the same time (step S66).
0). Here, when there is communication requested at the same time, it is determined whether or not the call is performed according to a predetermined rule. For example, it is determined whether or not the call is performed according to the priority. The priority is, for example, notification by the emergency notification device 3> notification by the notification device in the multipurpose room> simultaneous communication from the wireless terminal 7> communication call from the broadcast operation device 1 to the wireless terminal 7 = from the wireless terminal 7 to the broadcast operation device 1 In the order of individual communication to That is, since this example is a report by the emergency call device 3, if the simultaneously requested communication is simultaneous communication or contact call, it is determined that the priority of the simultaneously requested communication is low (step S660, OK). Further, when a plurality of emergency calls are requested at the same time, it may be determined that the priority of a vehicle with a small (or large) number is high. That is, when the report to be called at step S640 is an emergency report from car 5, and an emergency report from car 3 is requested at the same time, the priority of communication requested at the same time in step S660 Is determined to be high (step S660, NG).

  If it is simultaneously with the high priority notification (step S660, NG), the process waits until the priority operation ends (step S655), and returns to step S640 after the priority operation ends.

  If it is determined in step S660 that there is no communication requested at the same time or the priority of the communication requested at the same time is low (step S660, OK), the main control unit 22 generates a calling signal for the wireless terminal 7, and A notification information signal including notification information indicating an emergency notification is generated. The main control unit 22 outputs the call signal and the notification information signal, and instructs the network control unit 23 to call a predetermined wireless terminal 7 (step S670). In this embodiment, the communication number corresponding to the emergency call is selected from the communication number table shown in FIG. 10A or 10B as the notification information. As shown in FIG. 10A, if this communication number is “VW” or “XY”, it is indicated that an emergency call has occurred, and if the communication number is “ZA”, it is not an emergency call (notifying the multipurpose room) ) Is displayed. In addition, in FIG. 10A or 10B, although it was set as alerting | reporting information that it was an emergency call, it is good also as alerting | reporting information which shows not only this but a car number. Moreover, the information which shows that it is an emergency call and the car number is combined may be sufficient. When notifying various types of notification information in this way, the main control unit 22 may generate notification information by adding a number indicating a car number or the like following the communication number shown in FIG. 10A or 10B. good. For example, when an emergency call is made in the fifth car and the radio terminal 7 of the conductor of the ninth car is called, “05” indicating the car number is added after “VW”, and “VW05” may be used as the sender number. . Furthermore, when information such as guidance described later is included as notification information, a number for specifying this information may be determined in advance and added to the transmission source number.

  Receiving the call instruction, the network control unit 23 requests the wireless communication control device 5 to call the wireless terminal 7 (step S680).

  Receiving the call request, the wireless communication control device 5 checks whether or not the wireless terminal 7 can be called (step S690). For example, it is determined that calling is not possible during a call or when radio waves do not reach (S690, No). If the call is impossible, the wireless communication control device 5 determines whether or not the call can be made again after 5 seconds (step S700). If the call is impossible, the process returns to step S640 to determine whether there is another report to be called. judge.

  When calling is possible in steps S690 and S700, the wireless communication control device 5 calls the wireless terminal 7 (S710). Here, the wireless communication control device 5 notifies the wireless terminal 7 of the communication number assigned to the emergency call, for example, “VW” as the transmission source number.

The wireless terminal 7 that has received the call performs a call process such as outputting a ring tone or starting a vibrator, and refers to the communication number table and information corresponding to the caller number, which is an emergency call in this example. Information processing such as displaying the information on the display unit 72 is performed (step S720). For example, the source number notified to the radio terminal 7 of the first formation conductor is “VW”.
If it is, it is displayed that it is an emergency report and that a report has been made within the same composition, such as “Emergency emergency report for the first organization”. In addition, when the car number is added to the caller number, for example, when the caller number is “VW05”, it is an emergency call such as “Emergency call at first train (car 5)”. In addition, the car number may be displayed. Similarly, when the transmission source number is “XY14”, it may be displayed as “emergency notification in the second train (car 14)”.

In response to the call, when an operation to take a call (off-hook) is performed by the crew member, the wireless terminal 7 sends a response signal (off-hook signal) to the wireless communication control device 5 (step S730).

The wireless communication control device 5 receives the response signal, establishes a call with the wireless terminal 7, and enables the network control unit 23 to output the audio signal received from the wireless terminal 7 (
Step S740).

  The network control unit 23 notifies the main control unit 22 that voice signals are to be transmitted and received so that a call with the wireless terminal 7 is possible (step S750).

  The main control unit 22 confirms the current device state of the notification device or the like held by the broadcast control screen device (selection device) 4, and generates synchronization data reflecting the response signal received in this device state. Then, it is sent to the broadcast control screen device 4 for display, and sent to another broadcast control screen device 4 via the data line 85 to synchronize the device state (step S755).

  The main control unit 22 confirms the notification in the calling state, and when there are a plurality of notifications, selects the notification of the young car (step S760). Also, when there are multiple reports on the vehicle. Select according to a predetermined priority. For example, the highest priority report is selected according to the report location, such as guest room 1> guest room 2> toilet 1> toilet 2. If there is no report to be selected in steps S760 and S770, the process proceeds to step S1110 (FIG. 26).

  The main control unit 22 notifies the DCU (voice guide unit) 21 of information such as the report location of the selected report and instructs the output of the voice guidance (step S780).

  FIG. 30 is an explanatory diagram of an example of generating voice guidance according to a report place. The first sound piece is a sound indicating the car number for which the report is made. For example, the number of the car that has been notified is notified from the main control unit 22 as a 5-bit binary number, and the sound corresponding to this number is selected.

  The second sound piece is a sound indicating a specific report location such as a guest room, a toilet, and a multipurpose room. The third sound piece is sound indicating the operation method of the wireless terminal. The third voice identifies the configuration of the reporting device that has made the report based on the reporting location, and selects guidance according to the configuration of the reporting device. For example, the emergency call device 3 provided in a guest room or a toilet has a speaker and a microphone and can make a call. Therefore, after calling by pressing EC, press EW and hold confirmation. Guide the operation. On the other hand, when the notification device provided in the multipurpose room does not include a speaker and a microphone, only the confirmation operation is guided as in “Please confirm by pressing EW”.

  The voice synthesizer 211 of the DCU 21 reads out the sound piece corresponding to the information on the report location notified from the main control unit 22 from the storage device, and synthesizes the voice guidance by combining the first sound piece to the third sound piece. The voice guidance synthesized by the voice synthesis unit 211 is converted into an analog signal by the D / A converter 212, amplified to a predetermined level by the amplification unit 213, and output to the wireless terminal control unit 5 via the network control unit 23. .

FIG. 23 is a diagram showing a flow of processing for outputting voice guidance, and FIG. 31 is a diagram showing a sequence when voice guidance is output. When the wireless terminal 7 is called in response to the emergency call and the wireless terminal 7 responds (off hook) (step S790-1 (FIG. 31)), the main control unit 22 instructs the DCU 21 to output voice guidance (step S79).
0-2 (FIG. 31)). The DCU 21 transmits the synthesized voice guidance to the wireless communication control device 5 via the network control unit 23 (step S790-3 (FIG. 31)).
Then, it is transmitted from the wireless communication control device 5 to the wireless terminal 7 (step S790), and is output as voice from the receiver of the wireless terminal 7 (step S800). For example, “No. 3 car, emergency call in the guest room. After pressing EC to make a call, press EW to put confirmation on hold.” The status of the report and the next operation to be performed are indicated by voice.

  FIG. 33 is a diagram showing a sequence of confirmation operation by the wireless terminal 7. Based on the voice guidance, a confirmation operation is performed on the wireless terminal 7, and when “EC” is pressed (step S810), a tone signal indicating the communication number “EC” is transmitted via the wireless communication control device 5 to the network control unit. 23 (step S820). The network control unit 23 inputs this tone signal to the main control unit 22 via the signal line 297 (step S830). When the tone signal indicating the communication number “EC” is input, the main control unit 22 recognizes that the confirmation operation has been performed, and sends a confirmation signal to the DCU 21 to instruct to stop outputting the voice guidance ( In step S840), the DCU 21 stops outputting the voice guidance (step S850).

  The main control unit 22 confirms the current device state of the emergency notification device 3 and the like held by the broadcast control screen device (selection device) 4 (step S860), and whether there is a report to be confirmed based on the confirmation signal. It is determined whether or not (step S870). Here, when there is no report to be confirmed (step S870, No), that is, a confirmation operation is performed by the broadcast control screen device 4 while the guidance is being played, and there is no other emergency call being called. In this case, the confirmation process from the wireless terminal 7 is interrupted, and the process proceeds to step 1110.

  If the emergency caller of the car and location that was instructed is not confirmed, the emergency caller is confirmed, and data for synchronization reflecting the receipt of this confirmation signal is generated, and the broadcast control screen device 4 The call state is displayed as “call” from “call”, and sent to another broadcast control screen device 4 via the data line 85 to synchronize the display.

  When the emergency notification device of the car and the location where the guidance was performed has already been confirmed, that is, when the confirmation operation has been performed by the broadcast control screen device 4 while the guidance is being played, the main control unit 22 confirms the state of another emergency call device, and if there is another call being called, the check operation of the wireless terminal 7 notified in step S830 is regarded as a check operation for the emergency call.

  Here, when there are a plurality of notifications being called, the main controller 22 selects an emergency notification to be confirmed according to a predetermined priority. For example, of the plurality of emergency calls, the emergency call device of the vehicle with the smallest car number (1st car) or the vehicle with the largest car number is checked. Further, when there are a plurality of locations where the emergency call device notification SW is ON in the same car, confirmation is made with a predetermined priority, for example, priority such as guest room> toilet (step S870). Then, the main controller 22 generates synchronization data reflecting the confirmation operation and sends it to the broadcast control screen device 4 to display the call state of the emergency call device from “calling” to “calling”. It is sent to another broadcast control screen device 4 via 85 to synchronize the display (step S880).

  The main control unit 22 confirms the state of the emergency call device of the broadcast control screen device (selection device) 4 (step S890), and confirms the emergency call device that is “call” (confirmation) (step S900). .

The main control unit 22 sends a confirmation signal to the switch drive circuit 253 and turns on the switch 252 to connect the emergency call device 3 and the communication line 82 (step S910-1 (FIG. 33)) and the signal. A confirmation signal is sent to the network control unit 23 via the line 295 to instruct the connection between the emergency call device 3 and the wireless terminal 7 (
In step S910), the network control unit 23 turns on the switch 232 based on the confirmation signal to connect the communication line 82 and the voice line on the wireless communication system side, and the telephone call between the emergency call device 3 and the wireless terminal 7 is performed. (Step S920).

The main control unit 22 instructs confirmation of the emergency call device 3 by sending a confirmation signal to the CAU 26 (step S930), and the lighting circuit 264 of the CAU 26 turns on the notification display lamp 35 (step S930-1 (FIG. 33)). )), The switch drive circuit 263 turns off the switch 268, stops the sounding of the emergency buzzer 32 (step S930-2 (FIG. 33)), and puts the emergency call device 3 into a confirmation state (step S940).

The audio signal input from the microphone 34 of the emergency call device 3 is (step S950-1 (FIG. 3
2)), is sent to the communication line 82 via the hybrid 251, the switch 252 and the signal line 282 (step S950-2 (FIG. 32)), and the audio signal is transmitted from the connection line 82 in the broadcast control device 2 of the first car. The signal is input to the network control unit 23 via the signal line 282 (step S950-3 (FIG. 32)) and transmitted to the wireless communication control device 5 via the switch 232 and the input / output unit 233 of the network control unit 23 (step S950). -4 (FIG. 32)), is transmitted to the wireless terminal 7 via the wireless line by the wireless communication control device 5 (step S950-5 (FIG. 32)).

On the other hand, the audio signal transmitted from the wireless terminal 7 (step S950-6 (FIG. 32)) is sent to the network control unit 23 via the wireless terminal device 5 (step S950).
-7 (FIG. 32)), it is sent to the communication line 82 via the switch 232 and the signal line 282 of the network control unit 23 (step S950-8 (FIG. 32)). When the audio signal sent to the communication line 82 is input to the broadcast control device 2 connected to the emergency call device 3 (step S950-9 (FIG. 32)), the signal line 282, the switch 252 and the hybrid circuit 251 are connected. To the emergency call device 3 (step S950-10 (FIG. 32)) and output from the speaker 31 (step S950-11 (FIG. 32)). Thereby, a voice signal is sent between the wireless terminal 7 and the emergency call device 3 to make a call (step S950).

  When a hold operation such as pressing EW of the wireless terminal 7 is performed, the call with the emergency call device 3 can be put on hold. FIG. 34 is a diagram illustrating a sequence of a hold operation by the wireless terminal 7. When the EW of the wireless terminal 7 is pressed and the wireless terminal 7 transmits a tone signal of “EW” as a hold signal to the wireless communication control device 5 (step S960), the network control of the first car to which the wireless communication control device 5 is directly connected. The network control unit 23 receives the tone signal (hold signal) of “EW” via the input / output unit 233 (step S970).

The network control unit 23 inputs the signal to the main control unit 22 in the same apparatus (in the first car) via the signal line 297 (step S970-1 (FIG. 34)). The main control unit 22 sends a hold signal to the data communication device 89 (step S970-2 (FIG. 34)) and transmits the main control unit 22 connected to the emergency call device 3 via the data line 85 (step S980). .

The main control unit 22 that has received the hold signal checks the state of the emergency call device on the broadcast control screen (step S990), and determines whether there is a report to be put on hold based on the hold signal (step S1000). ). Here, when there is no report to be put on hold (step S870, No), that is, when the hold control is already performed by the broadcast control screen device 4 and there is no other emergency call in progress, the wireless terminal 7 The hold process is interrupted and the process proceeds to step 1110.

  If the emergency call device confirmed in priority judgment 5 is not put on hold, the emergency call device is put on hold. If this display is put on hold, the display of the emergency call apparatus 3 that is currently [call] (confirmation) is put on hold.

  The main control unit 22 transmits the result of the suspension in step 1000 to each broadcast control device 2 via the data line 85, and displays the display on the broadcast control screen device (selection device) 4 for the emergency notification device 3 placed on hold. [Hold] is set (step S1010).

  The main control unit 22 confirms the state of the emergency call device 3 displayed on the broadcast control screen device (selection device) 4 (step S1020), and instructs the CAU 26 to hold the emergency call device 3 (step S1020-1 ( 34)), the lighting circuit 264 is controlled to turn off the notification indicator lamp 35 (step S1020-2 (FIG. 34)), and the switch 252 is released (OFF) to stop the call by the emergency call apparatus 3 (FIG. 34). Step S1030).

  When the crew member performs a call termination operation (on-hook), the wireless terminal 7 transmits a call end signal to the wireless communication control device 5 (step S1040).

  The wireless communication control device 5 notifies the network control unit 23 of the first car of the suspension of connection with the wireless terminal 7 (step S1050).

  The network control unit 23 of the first car notifies the main control unit 22 of the first car and the main control unit 22 connected to the emergency call device 3 that the connection with the wireless terminal 7 is stopped (step S1060).

The main control unit 22 connected to the emergency call device 3 notifies the network control unit 23 in the same device that the connection with the wireless terminal 7 is stopped (step S1).
070).

  The main control unit 22 confirms the state of the emergency call device 3 displayed on the broadcast control screen device (selection device) 4 (step S1020), and determines whether there is a check device that is not confirmed or put on hold ( If there is a notification device that is not confirmed or put on hold (step S1090) (step S1090, Yes), the process returns to step S640 to call the wireless terminal 7. If there is no notification device that has not been confirmed or put on hold (step S1090, No), it waits until a reset operation is performed.

In Steps S640, S760, S770, S900, and S1000, if there is no reporting device to be connected, it is determined whether all the reporting devices have been reset (Step S1110). , If not reset,
Wait until a reset operation is performed (step S1100).

FIG. 27 is a diagram showing a flow when a confirmation operation is performed on the broadcast control screen device (selection device) 4. When the [Call] display on the call status display unit 43 as shown in FIG. 6 is pressed on the broadcast control screen (
In step S1210), this operation is detected by the touch panel and input to the main control unit 22.

The main control unit 22 confirms the state of the emergency call device of the broadcast control screen device (selection device) 4 (step S1230), and instructs the CAU 26 to confirm the emergency call device 3 (step S1240). Upon receiving the confirmation instruction, the CAU 26 turns on the notification indicator lamp 35 of the emergency call device 3 by the lighting circuit 264 and stops the ringing of the emergency buzzer 32 by the switch drive circuit 263 so that the emergency call device 3 is in the confirmed state. (Step S1250).

  The main control unit 22 instructs the network control unit 23 to connect the emergency call device 3 and the wireless terminal 7, and the network control unit 23 enables a call between the emergency call device 3 and the wireless terminal 7 ( Step S1260).

Further, when the display of [call] on the call state display unit 43 is pressed on the broadcast control screen (step S
1270), this operation is detected by the touch panel, and the main control unit 2
2 is input.

  Based on the above operation, the main control unit 22 changes the “call” display on the broadcast control screen to “hold” (step S1280).

The main control unit 22 confirms the state of the emergency call device of the broadcast control screen device (selection device) 4 (step S1290), and instructs the CAU 26 to hold the emergency call device 3 (step S1300). Upon receiving the confirmation instruction, the CAU 26 turns off the notification display lamp 35 of the emergency call device 3 by the lighting circuit 264, and puts the emergency call device 3 in the hold state (step S1).
310).

  The main control unit 22 confirms the status of the emergency call device on the broadcast control screen. If there is an emergency call device that is not confirmed or put on hold, the main control unit 22 returns to step S1210 and performs the confirmation operation again from the broadcast control screen (step S1210). S1320).

  FIG. 28 is a diagram showing a flow of the reset operation, FIG. 35 is an explanatory diagram of the reset operation by the broadcast control screen, and FIG. 36 is an explanatory diagram of the reset operation by the reset switch of the switchboard.

When the reset display 44 is pressed on the broadcast control screen device (selection device) 4 (step S141).
0) The broadcast control screen device 4 inputs this reset signal to the main control unit 22 via the data communication device 89 (step S1410-1 (FIG. 35)), and a part selected on the broadcast control screen. Alternatively, all the displays are erased (step S1420).

  The main control unit 22 sends the changed display information to the data communication device 89 (step S1420-1 (FIG. 35)), and sends it to the other broadcast control device 2 via the data line 85 by the data communication device 89. (Step S1420-2 (FIG. 35)) The display of each broadcast control screen device (selection device) 4 is synchronized (Step S1430).

The main control unit 22 instructs the CAU to reset the emergency call device 3 (step S1440), and resets the switch drive circuit 262, thereby stopping the application of voltage to the emergency buzzer line 83 and The ringing of the bell 141 is stopped (step S1440-1 (FIG. 35)). In addition, by resetting the switch drive circuits 263 and 264, the power supply to the notification indicator lamp 35 and the emergency buzzer 32 is stopped, the notification indicator lamp 35 is turned off, and the emergency buzzer 32 is stopped. Return to the initial state (step S14)
40-2 (FIG. 35)). Further, the call line of the emergency call apparatus 3 is released by resetting the FF 252 (step S1440-3 (FIG. 35)).

On the other hand, the reset operation can also be performed by the reset switch 271 of the switchboard. When the reset switch 271 of the switchboard is operated and the ON / OFF state is switched, the main control unit 22 detects this state change as a reset signal (step S1510), and the main control unit 22 notifies the CAU 26 to the emergency call device 3. The emergency notification is reset by sending a reset signal (step S1520), and the switch drive circuits 262, 263, 264, and 252 are reset in the same manner as described above to turn off the notification indicator lamp 35 and the emergency buzzer 32. The emergency call device 3 is initialized (step S1520-1 (FIG. 36)), the emergency buzzer 141 is stopped (step S1520-2 (FIG. 36)), and the call line is released (step S1520-3). (FIG. 36)).

The main control unit 22 notifies the broadcast control screen device 4 that the reset operation has been performed (step S1530). Here, the main control unit 22 sends the car number and the reset signal for which the reset switch 271 has been pressed to the data communication device 89 (step S1530-1 (FIG. 36)). The reset signal and the car number are transmitted to the vehicle broadcast control screen device 4 (step S1530—
2 (FIG. 36)). Receiving the reset signal and the car number, the broadcast control screen device 4 erases the display of the car and updates the display of the broadcast control screen (step S1540).

  FIG. 37 is an explanatory diagram of an example in which notification is performed by the multi-purpose room buzzer switch 30 provided in the multi-purpose room, FIG. 38 is a diagram showing a sequence when notification is performed by the multi-purpose room buzzer switch 30, and FIGS. It is a figure which shows the flow of the process which reports by the multipurpose room buzzer switch.

  As shown in FIG. 37, the multipurpose room buzzer switch 30 is a single-function notification device having only a push button switch (report switch) 38 for reporting.

When the notification switch 38 of the multi-purpose room buzzer switch 30 is pressed and turned on (step S1610), the main control unit 22 detects that the switch is turned on as a notification signal via the CAU 26 (step S1620).

  The main control unit 22 that has received the notification signal transmits the notification information signal including notification information such as the number of the car that has been notified and the notification from the multipurpose room (report type) and the notification signal to the data communication device 89. (Step S1630). The data communication device 89 transmits the notification signal and the notification information signal to the broadcast control screen device 4 of each vehicle via the data line 85, so that the broadcast control screen device 4 of each vehicle has the data shown in the example of FIG. As described above, the notification is made in the multipurpose room and the car number is displayed (step S1640).

The main control unit 22 determines the presence or absence of communication (priority operation) such as notification or communication that has already been executed (step S1650). If there is communication that has already been executed, that is, if there is a priority operation (step S1650, NG), it waits until this priority operation ends (
In step S1670), after the priority operation is completed, the process returns to step S1640.

When it is determined in step S1650 that there is no priority operation (step S1650, OK), the main control unit 22 determines the presence or absence of the requested communication (step S1).
1660). If there is a communication requested at the same time, check the priority. If it is simultaneously with the high priority notification (step S1660, NG), the process waits until the priority operation ends (step S1670), and returns to step S1640 after the priority operation ends.

If it is determined in step S1660 that there is no communication requested at the same time or the priority of the communication requested at the same time is low (step S1660, OK), the main control unit 22 sends the signal to the network control unit 23 via the signal line 296. By sending a calling signal of the wireless terminal 7 in response to the notification signal, for example, a calling signal destined for the conductor's wireless terminal 7 and a transmission source number based on the notification information as described above, a predetermined wireless terminal 7 Is called (step S1680). If the main control unit 22 receiving this notification signal is not the main control unit 22 of the first car, it is sent to the main control unit 22 of the first car via the data line 85, that is, the network control unit 23 of the first car, that is, wireless. The network control unit 23 connected to the communication control device 5 is instructed to call.

  The network control unit 23 that has received the call instruction requests the wireless communication control device 5 to call the wireless terminal 7 by transmitting a call signal via the communication line 88 (step S1690).

  Receiving the call request, the wireless communication control device 5 checks whether or not the wireless terminal 7 can be called (step S1700). For example, it is determined that calling is not possible during a call or when radio waves do not reach (S1700, No). If the call cannot be made, the wireless communication control device 5 determines whether or not the call can be made again after 5 seconds (step S1710). If the call cannot be made, the process returns to step S1640 to determine whether there is another report to be called. judge.

  When calling is possible in steps S1700 and S1710, the wireless communication control device 5 calls the wireless terminal 7 (S1720). Here, the wireless communication control device 5 notifies the wireless terminal 7 of the communication number assigned to the notification of the multipurpose room, for example, ZA as the caller information as the notification information.

Upon receiving the call, the wireless terminal 7 refers to the communication number table and displays information corresponding to the caller number, in this example, information indicating that the notification is from the multipurpose room on the display unit 72 (step S).
1730).

When an operation to take a call (off-hook) is performed by the crew in response to the call, the wireless terminal 7 sends a response signal (off-hook signal) to the wireless communication control device 5, and the wireless communication control device 5 passes through the communication line 88. To send a response signal to the main control unit 22 (step S).
1740).

  The main control unit 22 confirms the notification in the calling state, and when there are a plurality of notifications, selects the notification of the young car (step S1780). If there is no report to be selected in step S1780, the process proceeds to step 1880 and waits until the end.

  The main control unit 22 notifies the DCU (voice guide unit) 21 of information such as the report location of the selected report and instructs the output of the voice guidance (step S1790).

The DCU 21 sends the synthesized voice guidance to the network control unit 23 and transmits it to the wireless communication control device 5 via the input / output unit 233 of the network control unit 23, and the wireless communication control device 5 sends the voice guidance to the wireless terminal 7. (Step S1800) and output from the receiver of the wireless terminal 7 as voice (step S1810).
For example, “No. 3 car is handled as a buzzer in the multi-purpose room. Press EW to hold confirmation.” The status of the report and the next operation to be performed are indicated by voice.

When EW is pressed on the wireless terminal 7 based on the voice guidance (step S1820), a tone signal (hold signal) indicating the EW is input to the network control unit 23 via the wireless communication control device 5 (step S1830). ). The network control unit 23 inputs a tone signal indicating this EW to the main control unit 22 (
Step S1840). When this tone signal is input, the main control unit 2
2 instructs the DCU 21 to stop outputting the voice guidance (step S1850).
1 stops outputting voice guidance (step S1860).

The main control unit 22 that has received the hold signal confirms the current device state of the notification device or the like held by the broadcast control screen device (selection device) 4 and synchronizes that this device state reflects the reception of the hold signal. Data is generated and sent to the broadcast control screen device 4 for display, and sent to another broadcast control screen device 4 via the data line 85 to synchronize the device status (step S1870). In the present embodiment, the multi-purpose room buzzer switch 30 is not provided with a call function, and the confirmation for the notification from the multi-purpose room and the call status of the hold are not displayed. Therefore, in step S1870, the synchronization reflecting the hold signal is performed. Even if the data is transmitted to the broadcast control screen device 4, it does not appear on the display, but the device state indicating that the hold signal for the multipurpose room buzzer switch 30 has been received is shared by each broadcast control screen device 4. However, when the device state is changed by the broadcast control screen device 4 during reproduction of the voice guidance, the change in the device state is reflected in the display.

  Then, the main control unit 22 waits until the wireless terminal 7 goes on-hook, that is, until a call-ending signal is received from the wireless terminal 7 (step S1880).

When the crew member performs an operation for terminating the call (on-hook), the wireless terminal 7 transmits an end-call signal to the wireless communication control device 5, and the wireless communication control device 5 transmits the wireless terminal to the network control unit 23 of the first car. 7 is canceled. The network control unit 23 of the first car notifies the main control unit 22 of the first car that the connection with the wireless terminal 7 is stopped (step S1890). The main control unit 22 confirms the state of the notification device displayed on the broadcast control screen device (selection device) 4, and generates synchronization data reflecting the reception of the end-call signal in this device state, The data is sent to the broadcast control screen device 4 to display the device status, and sent to another broadcast control screen device 4 via the data line 85 to synchronize the device status (step S1900). In step S1900, as in step S1870, even if the synchronization data reflecting the end signal is transmitted to the broadcast control screen device 4, it does not appear on the display.

The main control unit 22 determines whether there is a vehicle in which the multipurpose room buzzer switch 30 is pressed and the EW is not pressed. If there is a vehicle in which the EW is not pressed, the main control unit 22 returns to step S1640, If there is no vehicle for which EW has not been pressed, the process returns to the initial state (step S1910).

  As described above, according to the present embodiment, communication such as in-car broadcast and emergency call response can be performed by the wireless terminal 7, and positions where in-car broadcast, inter-crew communication, and emergency call can be performed in the train are conventionally known. It can be expanded compared.

  For example, even when the conductor conducts business outside the conductor room, the emergency call can be handled by the wireless terminal.

DESCRIPTION OF SYMBOLS 1 Broadcast operation device 2 Broadcast control device 3 Emergency call device 4 Broadcast control screen device 5 Wireless communication control device 6 Wireless base station 7 Wireless terminal 8 Lead-through line 9 Speaker 10 Communication system 11 Handset 12 Call buzzer 13 Operation unit 16 Status display Unit 17 Selection button 21 Voice guidance unit 22 Main control unit 23 Network control unit 24 Car broadcast amplifier 26 Report control unit 30 Multipurpose room buzzer switch (report device)
31 Speaker 32 Emergency Buzzer 33 Emergency Report Switch 34 Microphone 35 Report Indicator Light 38 Report Switch 41 Vehicle Number Display Unit 42 Report Status Display Unit 43 Call Status Display Unit 44 Reset Button 45 Hold Button 52 Train Radio Mobile Station 53 Modulation Demodulation Unit 54 Processing 55 Communication control unit 59 Train radio ground station 61 Communication line 62 Input / output interface 64 Memory 65 Communication control unit 72 Display unit 73 Operation unit 81 Broadcast line 82 Connection line 83 Emergency buzzer line 85 Data line 86 Wireless line 88 Communication line 89 Data Communication device

Claims (5)

An in-vehicle communication system including at least one of an in-vehicle broadcast system, an inter-crew communication system, and an emergency call system between a passenger and the crew, which are fixedly arranged on a railway vehicle;
A radio communication system equipped with a radio communication control device, one or more radio base stations, and one or more radio terminals carried by a crew member, mounted on the railway vehicle;
A connection control device for converting a control signal from the in-vehicle communication system into a control signal for the in-vehicle communication system, while converting a control signal to the control signal for the in-vehicle communication system. ,
The in-vehicle communication system includes a trigger switch fixedly disposed in the vehicle, a signal generator for generating a call signal for the wireless terminal in response to the trigger switch being turned on, and notification information in response to the trigger switch being turned on. An output device that outputs a broadcast information signal,
The radio communication control apparatus supplies the call signal and the broadcast information signal, which are received from the connection control apparatus, to the radio terminal through the radio base station.
The wireless terminal executes a call process according to the call signal and a notification process according to the broadcast information signal,
The in-vehicle communication system includes the emergency call system,
The trigger switch is an emergency call switch,
The notification information signal includes information notifying an emergency call,
The connection control device connects the emergency call system established by the response of the crew member and the wireless terminal, and transmits and receives an audio signal between the emergency call system and the wireless terminal,
The in-vehicle communication system includes a plurality of emergency call switches and a selection device that performs a selection operation of the plurality of emergency call switches,
When the connection control device receives a selection operation for the first emergency call switch among the plurality of emergency call switches from the wireless terminal and the selection device, the first emergency call selected by the selection operation A voice signal is transmitted and received between the switch and the emergency call system, and a voice signal is transmitted between the second emergency call switch selected from the plurality of emergency call switches according to a predetermined priority condition and the wireless terminal. A communication system for railway vehicles that allows transmission and reception. The connection control device connects an audio line on the radio communication system side and a broadcast line on the in-vehicle communication system side based on a control signal received from the radio communication system, and an audio signal for broadcasting input by the radio terminal The communication system for a railway vehicle according to claim 1, wherein: The connection control device connects a voice line on the side of the inter-crew communication system included in the in-vehicle communication system and a voice line on the side of the radio communication system, and communicates a voice signal input at the radio terminal to the crew The communication system for a railway vehicle according to claim 1, wherein communication control is performed to send to the wireless terminal a voice signal input from the handset of the inter-crew communication system and sent to the handset of the system. The communication system includes a train radio mobile station that is wirelessly connected to a train radio ground station installed on the ground,
The communication system for railway vehicles according to claim 1 or 2 , wherein the train radio mobile station establishes a call between the radio terminal and a telephone set on the train radio ground station side. In a communication system for a railway vehicle according to any one of claims 1 or et 4, a system connecting unit interposed between the vehicle communication system and the wireless communication system,
The connection control device;
An output control device that outputs the control signal after conversion by the connection control device toward a destination;
An intersystem connection device including:

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