JP6183218B2 - Telephone system with patrol monitoring function - Google Patents

Description

  The present invention includes a main apparatus that accommodates one or more extensions, one or more extension terminals connected to the extension, and a plurality of monitor extension terminals that are connected to the extension and have a function of inputting ambient sounds as monitor sounds. Relates to a telephone system.

  In nursing care facilities, intercom systems and nurse call systems have been introduced for communication between care recipients and care staff. Generally, these systems have functions such as a function for a care receiver to call a care staff by a simple operation in an emergency, a function for calling a care receiver individually from the care staff side, and a broadcast function.

  Furthermore, in the recent nurse call system, etc., in addition to the extension telephone-like call function, in order to watch whether there are any abnormalities in the room where the care recipient goes to sleep, the nurse call parent device makes it possible for the care receiver to go to sleep. A technique (for example, Patent Document 1) that sequentially listens to voices input to microphones of a plurality of nurse call slaves installed in a room is disclosed.

JP 2006-129229 A

  The technique described in Patent Document 1 is an auto-scan method (patrol monitor) at regular intervals, and can automatically monitor the status of each room in sequence, improving the work efficiency of care staff, managers, nurses, etc. It seems that it is effective in aiming at.

  However, in the case of the technique described in Patent Document 1, the terminal that monitors the status of each room is a nurse call parent device fixedly installed in a nursing staff room, a nurse center, or the like, and is premised on immediate rushing. For this reason, the auto-scan method as a patrol monitor is fixed, and the flexibility of the place and terminal for the monitor operation is insufficient.

  Accordingly, an object of the present invention is to freely set an extension terminal (including wireless) to be monitored and an extension terminal to be monitored (hereinafter referred to as “monitor extension terminal”), and to continue monitoring for one monitor extension terminal. Another object of the present invention is to provide a telephone system having a patrol monitor function that makes it easy to reconfirm the status of a monitor destination that has passed through the order of patrol monitors.

In order to solve the above-described problems, the present invention provides a main apparatus that accommodates one or more extensions, one or more extension terminals connected to the extensions, and a function of inputting ambient sounds as monitor sounds connected to the extensions. A plurality of monitor extension terminals, wherein the monitor extension terminal includes a monitor sound input means for inputting a surrounding sound of the own terminal as a monitor sound by a microphone included in the own terminal, and the main apparatus. Monitor activation means for activating the monitor sound input means in response to the received monitor activation command; monitor sound transmission means for transmitting the monitor sound input by the activated monitor sound input means to the main apparatus as a monitor sound signal; And any or all of the extension terminals sequentially receive the monitor sound signals from any or all of the monitor extension terminals in a predetermined cyclic order. A monitor sound patrol reception request command transmitting means for transmitting a monitor sound patrol reception request command to the main unit, and a continuous reception request command requesting to continuously receive the monitor sound signal currently being received. A continuous reception request command transmission means for transmitting to the main unit, and a cyclic return request command for requesting to return the cyclic order to a monitor extension terminal in a predetermined order before the monitor extension terminal that is the transmission source of the currently received monitor sound signal. A cyclic return request command transmission means for transmitting to the main apparatus, a monitor extension terminal information receiving means for receiving monitor extension terminal information for identifying the monitor extension terminal from the main apparatus, and a monitor for receiving a monitor sound signal from the main apparatus Sound receiving means, monitor sound reproducing means for reproducing the received monitor sound signal, and monitor extension for identifying the received monitor extension terminal The end information anda monitor extension terminal information displaying means for displaying on a display device connected to the own terminal or display own terminal is provided, wherein the main unit, one or more transmitting said monitor sound signal Extension terminal registration means for registering information related to the monitor extension terminal and the extension terminal that receives the monitor sound signal, and monitor sound cyclic reception request command reception means for receiving the monitor sound cyclic reception request command from any of the extension terminals A cyclic control command receiving means for receiving the continuous reception request command or the cyclic return request command from the extension terminal, and a predetermined monitor extension terminal according to the received monitor sound cyclic reception request command or cyclic return request command Monitor start command transmitting means for transmitting the monitor start command and responding to the transmitted monitor start command A monitor sound receiving means for receiving the monitor sound signal from the monitor extension terminal, a monitor sound transmitting means for transmitting the received monitor sound signal to the extension terminal, and a monitor extension terminal from which the monitor sound signal is transmitted Monitor extension terminal information transmitting means for transmitting the monitor extension terminal information to the extension terminal, wherein the main unit is an extension terminal registered in the extension terminal registration means or a specific signal including predetermined identification information the when the extension terminal that has transmitted receives the monitor sound cyclic reception request command, the predetermined cyclic order in the respective monitor extension terminals registered before Symbol the line terminal registration means every time a predetermined time period elapses Monitor extension terminal information for sequentially transmitting the monitor activation command and identifying the monitor sound signal received by the monitor sound receiving means and the monitor extension terminal If the continuous reception request command is received during transmission of the monitor sound signal and the monitor sound signal is transmitted, the monitor activation command is not transmitted to the next monitor extension terminal even if a predetermined time elapses, and the monitor If the cyclic return request command is received during transmission of the sound signal, the cyclic extension is returned to the monitor extension terminal of a predetermined order starting from the monitor extension terminal that is the transmission source of the monitor sound signal currently being received, The monitor activation command is sequentially transmitted to each of the monitor extension terminals.

  In the telephone system, the monitor extension terminal receives input sensitivity adjustment means for adjusting ambient sound input sensitivity of a function of inputting ambient sound as monitor sound, and an input sensitivity command related to the ambient sound input sensitivity from the main device. Input sensitivity command receiving means for receiving the input, and the main unit is an input for increasing the ambient sound input sensitivity when receiving the continuous reception request command from the extension terminal receiving the monitor sound signal. The monitor extension terminal that transmits the sensitivity command to the monitor extension terminal that is transmitting the monitor sound signal and receives the input sensitivity command controls the input sensitivity adjustment means according to the received input sensitivity command, and It is characterized by increasing the ambient sound input sensitivity.

The connection in the telephone system, said extension terminal comprises: a video signal receiving means for receiving a video signal from a predetermined network camera or the main unit, a video signal said received also display the own terminal is provided to the own terminal Video display means for displaying on the displayed display device, wherein the main device is a linked camera registration means for registering a network camera linked with the monitor extension terminal, and a video signal from the registered network camera. Video signal acquisition means for acquiring, and video signal transmission means for transmitting the acquired video signal to the extension terminal, wherein the main device transmits the monitor sound from a predetermined extension terminal registered in advance. A command for requesting transmission of a video signal from an extension terminal to which the monitor sound signal is transmitted when a reception request command is received When received, the video signal is acquired from a network camera linked to the monitor extension terminal that is the transmission source of the monitor sound signal, and the acquired video signal and the monitor sound signal are transmitted to the extension terminal. .

  According to the present invention, when there are few nursing staff at night or the like and it is difficult to look around the room, when the patrol person who is sleeping using the extension terminal of the telephone system is monitoring whether there is an abnormality, I want to continue monitoring in one room for a while because something sounds, I want to switch to the next room monitor immediately because there is no sound, I heard something but switched to the next room monitor again You can select a pattern other than the automatic patrol monitor depending on the situation, such as returning to the previous room for reconfirmation, etc., and it seems that there is an abnormality, so monitor carefully or skip to the next room because there seems to be no abnormality Can perform flexible monitoring work.

  In addition, since a plurality of terminals can be registered as extension terminals that perform monitoring operations, monitoring operations can be performed at any place using a PHS terminal carried by a nursing staff, and a dedicated terminal is used for monitoring. Since it is not necessary to move to a nursing staff room or a nurse center where is installed, the burden on the staff can be reduced.

  In addition, by installing a network camera using an extension terminal that can display video, it is possible to monitor not only audio but also video, and even if the abnormal state cannot be grasped only by sound, it is easy to judge by video Therefore, it is possible to reduce the frequency of going to a room suspected of abnormality and confirming it, and further reduce the burden on the staff.

Overall configuration diagram according to the present invention Functional block diagram of the main device 1 according to the present invention Functional block diagram of the monitor extension terminal 2 according to the present invention Functional block diagram of extension terminal 3 according to the present invention Functional block diagram of video display extension terminal 4 according to the present invention Sequence diagram for continuous monitoring and patrol return during patrol monitoring according to the present invention Sequence diagram when performing patrol skip during patrol monitoring according to the present invention Sequence diagram for recording during patrol monitoring according to the present invention Sequence diagram when linked with a network camera according to the present invention

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is an overall configuration diagram of a telephone system according to the present invention, in which 1 is a main unit, 2A, 2B, 2C,... 2N are a plurality of monitor extension terminals, 3A,. 4 is a video display extension terminal, 5 is a switching hub, 6A, 6B, 6C,... 6N are network cameras. In addition, although the example of M extension terminals, one video display extension terminal, and N monitor extension terminals and network cameras is described, the number is arbitrary.

  The main device 1 is a device that processes connections of a plurality of extensions, and corresponds to a main device of a key telephone system or a private branch exchange (PBX). Normally, an external line is also connected to the main apparatus 1, but it is omitted because it is not related to the embodiment of the present invention. The monitor extension terminal 2 and the extension terminal 3 are connected to the extension terminal communication unit 14 of the main device 1, and the video display extension terminal 4 and the network camera 6 are connected to the LAN connection unit 16 of the main device 1 via the switching hub 5. . In FIG. 1 and FIGS. 2 to 4 to be described later, the monitor extension terminal 2 and the extension terminal 3 are connected to the extension terminal communication unit 14 of the main apparatus 1. The connection may be made by a (Internet Protocol) line, and may be connected to the LAN connection unit 16 of the main apparatus 1 via the switching hub 5. The monitor extension terminal 2, the extension terminal 3, and the video display extension terminal 4 may be connected by wireless connection instead of wired connection.

  The monitor extension terminal 2 is a terminal having a microphone 24 and is an interphone handset, a nurse call handset, or a telephone capable of hands-free calling.

  The extension terminal 3 is an extension telephone having a handset 34, a speaker 35, a key operation unit 36, and a display unit 37. Similarly, the video display extension terminal 4 is an extension telephone having a handset 44, a speaker 45, a key operation unit 46, and a video corresponding display unit 47 capable of displaying video as well as characters.

  Here, an outline of the patrol monitor will be described. For example, when cyclic monitoring is performed in the order of the monitor extension terminals 2A, 2B, 2C,... 2N at the extension terminal 3A, the monitor extension terminal 2A is set as the start point by using the key operation unit 36A of the extension terminal 3A. When the monitor sound patrol reception request command is input, the communication path between the extension terminal 3A and the monitor extension terminal 2A is connected via the exchange processing unit 13 of the main apparatus 1, and the voice input to the microphone 24A of the monitor extension terminal 2A is the extension. It can be listened to by the handset 34A or the speaker 35A of the terminal 3A, and the terminal number and name are displayed on the display unit 37A as the monitor extension terminal information of the monitor extension terminal 2A. When the predetermined time has elapsed, the connection of the monitor extension terminal 2A is disconnected, the monitor extension terminal 2B is connected instead, and the voice input to the microphone 24B of the monitor extension terminal 2B is transmitted / received by the handset 34A or the speaker 35A of the extension terminal 3A. The terminal number and name are displayed on the display unit 37A as the monitored extension terminal information of the monitor extension terminal 2B. Thereafter, the connected monitor extension terminals 2 are sequentially switched. Finally, the monitor extension terminal 2N is connected, and the voice input to the microphone 24N of the monitor extension terminal 2N is transmitted through the handset 34A or the speaker 35A of the extension terminal 3A. I can listen. When monitoring of the monitor extension terminal 2N is completed, the monitor returns to the monitor of the monitor extension terminal 2A.

  When the video display extension terminal 4 performs the patrol monitoring, the patrol monitoring is performed in the same procedure as that of the extension terminal 3, but the network cameras 6A, 6B, 6C linked to the monitor extension terminals 2A, 2B, 2C,. When 6N is present, the video captured by the network cameras 6A, 6B, 6C,.

  FIG. 2 is a functional block diagram of the main apparatus 1. The central control unit 11, the storage unit 12, the exchange processing unit 13, the extension terminal communication unit 14, the recording / playback unit 15, the LAN connection unit 16, and the video distribution unit 17. Consists of

  The central control unit 11 controls the storage unit 12, the exchange processing unit 13, and the recording / playback unit 15 according to various commands from the extension terminal 3 or the video display extension terminal 4 received via the extension terminal communication unit 14 or the LAN connection unit 16. A function of performing processing, and a function of transmitting commands, character information, and the like to the monitor extension terminal 2, the extension terminal 3, or the video display extension terminal 4 via the extension terminal communication unit 14 or the LAN connection unit 16.

  The storage unit 12 stores registration information related to a monitor extension terminal to be monitored and an extension terminal that can be monitored, registration information of a network camera linked to the monitor extension terminal, and the like. The registration information is registered by a command input dedicated to data registration from the key operation unit 36 of the extension terminal 3 or the key operation unit 46 of the video display extension terminal 4 or by a personal computer connected to the LAN connection unit 16 of the main apparatus 1. However, since it is publicly known, detailed description thereof is omitted.

  The exchange processing unit 13 has a function of connecting a communication path between the monitor extension terminal 2 and the extension terminal 3 or the video display extension terminal 4. Further, when recording a call or reproducing a recorded content, the monitor extension terminal 2, the extension terminal 3, or the video display extension terminal 4 and the recording / playback unit 15 are also connected.

  The extension terminal communication unit 14 is an interface for connecting the main apparatus to the monitor extension terminal 2 and the extension terminal 3 and has a function of transmitting and receiving commands and voice data.

  The recording / playback unit 15 has a function of recording sound from the monitor extension terminal 2, the extension terminal 3, and the video display extension terminal 4, and the recorded voice is used as the monitor extension terminal 2, the extension terminal 3, and the video display extension terminal 4 Have a function to play back.

  The LAN connection unit 16 is an interface for connecting the main apparatus and the video display extension terminal 4 and has a function of transmitting and receiving commands and audio data using IP (Internet Protocol) packets.

  The video distribution unit 17 acquires a video signal from the network camera 6 and transmits a command to / from the video display extension terminal 4 and the network camera 6 and converts it into a format that can be displayed on the video display extension terminal 4 (for example, It has a function of transmitting a video signal to the video display extension terminal 4 after converting the Motion-JPEG format to the MPEG4 format.

  FIG. 3 is a functional block diagram of the monitor extension terminal, which includes a control unit 21, main device communication unit 22, voice processing unit 23, microphone 24, speaker 25, key operation unit 26, and display unit 27.

  The control unit 21 analyzes the key information from the key operation unit 26 and transmits a command to the main device 1 via the main device communication unit 22, and analyzes and determines the command received via the main device communication unit 22. Function, and a function to control each circuit. When a monitor activation command is received from the main device 1, the microphone 24 is activated and the voice input from the microphone 24 is encoded and output to the main device communication unit 22. Thus, the audio processing unit 23 is controlled.

  The main device communication unit 22 has a function of transmitting / receiving commands and audio data to / from the main device 1.

  The voice processing unit 23 has a function of performing voice encoding / decoding, activation of the microphone 24 and the speaker 25 and a call path connection process, and volume control, and according to an input sensitivity command received from the main apparatus 1. It is possible to increase the ambient sound input to the microphone 24 by adjusting the input sensitivity of the microphone 24.

  The microphone 24 has a function of inputting the ambient sound of the microphone 24 to the audio processing unit 23 when the extension terminal 3 or the video display extension terminal 4 is talking with the monitor extension terminal 2 or monitoring the ambient sound of the monitor extension terminal 2.

  The speaker 25 has a function of reproducing sound from the extension terminal 3 or the video display extension terminal 4 when the monitor extension terminal 2 makes a call with the extension terminal 3 or the video display extension terminal 4.

  The key operation unit 26 has a function for calling the extension terminal 3 or the video display extension terminal 4 and a call / call recovery function. In the case of an intercom handset or a nurse call handset, a call button and a recovery button In the case of a telephone, it is composed of a hook switch, a dial button, a speaker button, and one or a plurality of function buttons to which functions such as a recovery button and a microphone button can be assigned.

  The display unit 27 is an LED lamp that displays the status of the monitor extension terminal 2 provided when the monitor extension terminal 2 is an interphone slave phone or a nurse call slave phone, and is called from the monitor extension terminal 2 in a hospital or a nursing facility. In order to clarify which monitor extension terminal 2 is the target of treatment when there is a call, it is possible to keep the lighting state after the call ends. Further, by connecting a lamp (hereinafter referred to as “corridor lamp”, not shown) that is separated from the monitor extension terminal 2 and interlocked with the display unit 27, the treatment target monitor extension terminal 2 is easily determined by the corridor lamp. be able to. In addition, the LED lamp and the corridor lamp of the display unit 27 can be turned off with the recovery button of the key operation unit 26. In addition, when the monitor extension terminal 2 is a telephone, it may have the same function as an intercom handset or a nurse call handset by an LED lamp or an LCD display.

  FIG. 4 is a functional block diagram of the extension terminal, which includes a control unit 31, a main device communication unit 32, a voice processing unit 33, a handset 34, a speaker 35, a key operation unit 36, and a display unit 37.

  The control unit 31 analyzes key information such as a monitor sound patrol reception request command, a continuous reception request command, and a patrol return request command from the key operation unit 36, and transmits a command to the main device via the main device communication unit 32. A function for analyzing and determining a command received via the main unit communication unit 32, a function for displaying character information such as monitor extension terminal information received via the main unit communication unit 32 on the display unit 37, and control of each circuit It has a function to perform.

  The main device communication unit 32 has a function of transmitting / receiving commands and audio data to / from the main device 1.

  The voice processing unit 33 has functions for performing voice encoding / decoding, activation of the handset 34 and the speaker 35, connection processing of a call path, and volume control.

  The handset 34 is connected to the voice processing unit 33 and plays and inputs voice when talking with the monitor extension terminal 2, other extension terminals 3, or the video display extension terminal 4, and voices when monitoring the monitor extension terminal 2 Has a function of playing back.

  The speaker 35 has a function of amplifying and reproducing sound instead of the handset 34.

  The key operation unit 36 includes a hook switch, a dial button, a speaker button, and a function button, and a monitor sound cyclic reception request command, a continuous reception request command, and a cyclic return request command when monitoring the sound around the monitor extension terminal 2 Data registration when registering registration information for monitor extension terminals that can be monitored and extension terminals that can be monitored, registration information for network cameras that are linked to the monitor extension terminals, etc. It is also used as a means for inputting a dedicated command. Various commands and data registration include a method by pressing a dial button of one or more digits, a method by pressing a dedicated function button, a method by a combination of a dial button and a function button, and the input method is not particularly limited.

  The display unit 37 is an LCD display that displays the date and time, an input dial, and the like. When the sound around the monitor extension terminal 2 is monitored, the monitor extension received from the main apparatus 1 as monitor extension terminal information is displayed. It has a function of displaying the terminal number and name of the terminal 2. The display unit 37 may be a display device (not shown) connected to the extension terminal 3.

  FIG. 5 is a functional block diagram of the video display extension terminal 4 and includes a control unit 41, a LAN connection unit 42, a voice processing unit 43, a handset 44, a speaker 45, a key operation unit 46, and a video corresponding display unit 47. Is done.

  In addition to the function of the control unit 31 of the extension terminal 3, the control unit 41 includes a video display start command and a video display end command for controlling start and end of video display of the network camera 6 via the LAN connection unit 42. Is received from the main device, and a video reception start command for starting the video signal reception of the network camera 6 and a video reception end command for ending the video signal reception of the network camera are transmitted to the main device.

  The LAN connection unit 42 has a function of transmitting / receiving commands and audio data to / from the main apparatus 1 and receiving video signals from the network camera 6 using IP (Internet Protocol) packets.

  The voice processing unit 43, the handset 44, and the speaker 45 have the same functions as the voice processing unit 33, the handset 34, and the speaker 35 of the extension terminal 3.

  In addition to the function of the key operation unit 36 of the extension terminal 3, the key operation unit 46 also has a function of inputting a network camera control command for controlling zoom / wide, pan / tilt, and the like of the network camera 6.

  In addition to the function of the display unit 37 of the extension terminal 3, the video corresponding display unit 47 has a function of displaying the video of the network camera 6. The video corresponding display unit 47 may be a display device (not shown) connected to the extension terminal 4.

  Next, the flow of the present invention will be described with reference to the sequence diagrams of FIGS. The extension terminal 3 and the video display extension terminal 4 shown in each figure are registered in the storage unit 12 of the main apparatus 1 as extension terminals that can be monitored, and the monitor extension terminals 2A, 2B, and 2C are all monitored. It is registered in the storage unit 12 of the main apparatus 1 as a monitor extension terminal. 6 to 8 illustrate the case where the extension terminal 3 performs monitoring, the same flow occurs when the video display extension terminal 4 performs monitoring. In addition, the order of each step shows an example, and may be arbitrarily changed within a range in which the operation / effect is not changed.

  FIG. 6 is a sequence diagram when the extension terminal 3 performs continuous monitoring and cyclic return during cyclic monitoring. There are three monitor extension terminals 2A, 2B, and 2C, and the order of circulation is an example of 2A → 2B → 2C → 2A → 2B... Until the extension terminal 3 ends monitoring by on-hook. Repeat the patrol monitor.

  When the monitor sound patrol reception request command, which is input from the key operation unit 36 of the extension terminal 3 and starts from the monitor extension terminal 2A, is transmitted to the main apparatus 1 (S601), the main apparatus 1 sends the monitor extension terminal 2A to the monitor extension terminal 2A. A monitor activation command is transmitted (S602), and a timer for performing automatic patrol monitoring is activated (S603).

  Even if the extension terminal 3 is not registered as an extension terminal that can be monitored in the storage unit 12 of the main apparatus 1 in S601, monitoring is performed by inputting a predetermined ID number, an emergency special number, or the like. It may be possible to enable transmission of a sound patrol reception request command and start automatic patrol monitoring (not shown).

  The main device 1 notifies the extension terminal 3 of the terminal number and name of the monitor extension terminal 2A as the monitor extension terminal information, and displays it on the display unit 37 of the extension terminal 3 (S604).

  The monitor extension terminal 2A that has received the monitor activation command from the main apparatus 1 in S602 enters the monitor activation state (S605), and the voice input to the microphone 24A of the monitor extension terminal 2A passes through the main apparatus 1 as monitor sound. 3 is reproduced from the handset 34 or the speaker 35 (S606).

  After S606, when the timer started in S603 expires (S607), the main apparatus 1 transmits a monitor end command to the monitor extension terminal 2A that has been monitoring so far (S608), and the monitor extension terminal 2A monitors The process ends (S609). Further, immediately after S608, the main apparatus 1 transmits a monitor activation command to the monitor extension terminal 2B that is the next cyclic monitoring target (S610), and again activates a timer for performing automatic cyclic monitoring (S611). .

  The main device 1 notifies the extension terminal 3 of the terminal number and name of the monitor extension terminal 2B as the monitor extension terminal information and displays it on the display unit 37 of the extension terminal 3 (S612).

  The monitor extension terminal 2B that has received the monitor activation command from the main apparatus 1 in S610 is in the monitor activation state (S613), and the voice input to the microphone 24B of the monitor extension terminal 2B passes through the main apparatus 1 as monitor sound. It is reproduced from the handset 34 or the speaker 35 of the terminal 3 (S614).

  When the continuous reception request command input from the key operation unit 36 of the extension terminal 3 is transmitted to the main apparatus 1 while monitoring the monitor extension terminal 2B (S615), the timer started in S611 is stopped (S616). Monitoring of the monitor extension terminal 2B is continued.

  When the main apparatus 1 receives the continuous reception request command in S615, a process for transmitting an input sensitivity command to the currently monitored monitor extension terminal 2B is added, and the monitor extension terminal 2B adds to the received input sensitivity command. Accordingly, the ambient sound input to the microphone 24B may be increased by adjusting the input sensitivity of the microphone 24B (not shown).

  When the cyclic return request command input from the key operation unit 36 of the extension terminal 3 is transmitted to the main apparatus 1 while monitoring the monitor extension terminal 2B is continued (S617), the main apparatus 1 has been monitoring so far. Then, a monitor end command is transmitted to the monitor extension terminal 2B (S618), and the monitor extension terminal 2B ends the monitor (S619). Further, immediately after S618, the main apparatus 1 transmits a monitor activation command to the monitor extension terminal 2A that is in the reverse direction to the cyclic order (S620), and again activates a timer for performing automatic cyclic monitoring (S621). ).

  The main device 1 notifies the extension terminal 3 of the terminal number and name of the monitor extension terminal 2A as monitor extension terminal information, and displays it on the display unit 37 of the extension terminal 3 (S622).

  If a cyclic skip request command is transmitted in S617, a cyclic return request command is transmitted except that in S620, the monitor activation command is transmitted to the monitor extension terminal 2C that is forward with respect to the cyclic order. It is the same as the case where it is done (not shown).

  The monitor extension terminal 2A that has received the monitor activation command from the main apparatus 1 in S620 enters the monitor activation state (S623), and the voice input to the microphone 24A of the monitor extension terminal 2A passes through the main apparatus 1 as monitor sound. 3 is reproduced from the handset 34 or the speaker 35 (S624).

  Thereafter, when the command from the extension terminal 3 is not transmitted to the main apparatus 1, every time the timer expires, the monitor extension terminal 2A starts from the monitor extension terminal 2A being monitored in S624, and the monitor extension terminal 2 is 2A in the forward direction with respect to the cyclic order. → 2B → 2C → 2A... (Not shown).

  FIG. 7 is a sequence diagram in the case where the extension terminal 3 performs cyclic skip during cyclic monitoring. Monitor extension terminals are 3A, 2A, 2B, and 2C. The order of patrol is 2A, 2B, 2C, 2A, 2B, and so on. repeat.

  Since S701 to S714 are common to S601 to S614 in FIG. 6, the description thereof is omitted here.

  When the cyclic skip request command input from the key operation unit 36 of the extension terminal 3 is transmitted to the main apparatus 1 while monitoring the monitor extension terminal 2B (S715), the timer started in S711 is stopped (S716). The main apparatus 1 transmits a monitor end command to the monitor extension terminal 2B that has been monitoring so far (S717), and the monitor extension terminal 2B ends the monitor (S718). Further, immediately after S717, the main apparatus 1 transmits a monitor activation command to the monitor extension terminal 2C whose cyclic order is the forward direction (S719), and again activates a timer for performing automatic cyclic monitoring (S720). .

  The main apparatus 1 notifies the extension terminal 3 of the terminal number and name of the monitor extension terminal 2C as monitor extension terminal information, and displays it on the display unit 37 of the extension terminal 3 (S721).

  The monitor extension terminal 2C that has received the monitor activation command from the main apparatus 1 in S719 enters the monitor activation state (S722), and the voice input to the microphone 24C of the monitor extension terminal 2C passes through the main apparatus 1 as monitor sound. 3 is reproduced from the handset 34 or the speaker 35 (S723).

  Thereafter, when the command from the extension terminal 3 is not transmitted to the main apparatus 1, every time the timer expires, the monitor extension terminal 2C starts from the monitor extension terminal 2C being monitored in S723, and the monitor extension terminal 2 is 2C in the forward direction with respect to the cyclic order. → 2A → 2B → 2C... (Not shown).

  FIG. 8 is a sequence diagram when the extension terminal 3 records the monitor sound during the patrol monitoring. Monitor extension terminals are 3A, 2A, 2B, and 2C. The order of patrol is 2A, 2B, 2C, 2A, 2B, and so on. repeat.

  Since S801 to S806 are common to S601 to S606 in FIG. 6, the description thereof is omitted here.

  When the recording start request command input from the key operation unit 36 of the extension terminal 3 is transmitted to the main apparatus 1 while monitoring the monitor extension terminal 2A (S807), the timer started in S803 stops (S808). While monitoring the monitor extension terminal 2A is continued, the main apparatus 1 mixes the monitor sound of the monitor extension terminal 2A and the transmission voice of the extension terminal 3 by the recording / playback unit 15 and starts recording (S809). At the time of monitoring, unlike the time of a call, the transmission voice of the extension terminal 3 is not sent to the monitor extension terminal 2A side, but is sent to the recording / playback unit 15 to comment not only on the monitor sound but also the situation explanation at the time of monitoring. Can be recorded together.

  If the cyclic skip request command input from the key operation unit 36 of the extension terminal 3 is transmitted to the main apparatus 1 while monitoring the monitor extension terminal 2A is continued (S810), the main apparatus 1 has been monitoring so far. The monitor extension terminal 2A transmits a monitor end command to the monitor extension terminal 2A (S811), and the monitor extension terminal 2A ends the monitor (S812). Further, the main device 1 ends the recording started in S809 (S813).

  Further, immediately after S811, the main apparatus 1 transmits a monitor activation command to the monitor extension terminal 2B whose cyclic order is the forward direction (S814), and activates a timer for performing automatic cyclic monitoring (S815).

  The main device 1 notifies the extension terminal 3 of the terminal number and name of the monitor extension terminal 2B as monitor extension terminal information, and displays it on the display unit 37 of the extension terminal 3 (S816).

  When the cyclic return request command is transmitted in S810, the cyclic skip request command is transmitted except that the monitor activation command is transmitted to the monitor extension terminal 2C in the forward direction with respect to the cyclic order in S814. It is the same as the case where it is done (not shown).

  The monitor extension terminal 2B that has received the monitor activation command from the main apparatus 1 in S814 enters the monitor activation state (S817), and the sound input to the microphone 24B of the monitor extension terminal 2B is transmitted through the main apparatus 1 as monitor sound. It is reproduced from the handset 34 or the speaker 35 of the terminal 3 (S818).

  Thereafter, when the command from the extension terminal 3 is not transmitted to the main apparatus 1, every time the timer expires, the monitor extension terminal 2B is started in the forward direction with respect to the cyclic order, starting from the monitor extension terminal 2B being monitored in S818. → 2C → 2A → 2B... (Not shown).

  FIG. 9 is a sequence diagram in the case where the monitor extension terminals 2A and 2B are linked to the network cameras 6A and 6B and display the video of the network camera together with the audio monitor. The monitor extension terminals are two examples of 2A and 2B, the circulation order is 2A → 2B → 2A → 2B..., And the cyclic monitor is repeated until the video display extension terminal 4 finishes monitoring by on-hook. Only the video display extension terminal 4 can display the video of the network camera together with the audio monitor, and this sequence is not applied when the extension terminal 3 monitors.

  When a monitor sound cyclic reception request command starting from the monitor extension terminal 2A and input from the key operation unit 46 of the video display extension terminal 4 is transmitted to the main apparatus 1 (S901), the main apparatus 1 monitors the monitor extension terminal 2A. A monitor activation command is transmitted to the terminal (S902), and a timer for performing automatic patrol monitoring is activated (S903).

  The main device 1 notifies the video display extension terminal 4 of the terminal number and name information of the monitor extension terminal 2A as the monitor extension terminal information, and displays it on the video corresponding display unit 47 of the video display extension terminal 4 (S904).

  The monitor extension terminal 2A that has received the monitor activation command from the main apparatus 1 in S902 enters the monitor activation state (S905), and the sound input to the microphone 24A of the monitor extension terminal 2A is displayed as a monitor sound through the main apparatus 1. It is reproduced from the handset 44 or the speaker 45 of the extension terminal 4 (S906).

  Further, in order to display the video of the network camera together with the audio monitor, the main apparatus 1 transmits a video display start command designating the network camera 6A linked to the monitor extension terminal 2A to the video display extension terminal 4 almost simultaneously with S904. Then, the video display extension terminal 4 transmits the video reception start command of the network camera 6A to the video distribution unit 17 of the main device 1 (S908), and the video distribution unit 17 of the main device 1 sends to the network camera 6A. A video distribution start request command is transmitted (S909).

  The network camera 6A that has received the video distribution start request command in S909 starts distribution of the video signal (S910), and the video signal of the network camera received by the video distribution unit 17 of the main device 1 is displayed on the video display extension terminal 4. After being converted into a possible format (S911), it is transmitted to the video display extension terminal 4 and displayed on the video corresponding display section 47 of the video display extension terminal 4 (S912).

  After S912, when the timer started in S903 expires (S913), the main device 1 transmits a monitor end command to the monitor extension terminal 2A that has been monitoring so far (S914), and the monitor extension terminal 2A monitors The process ends (S915).

  Further, in order to end the video display of the network camera together with the end of the audio monitor, the main apparatus 1 sends a video display end command specifying the network camera 6A linked to the monitor extension terminal 2A almost simultaneously with S914. (S916), the video display extension terminal 4 transmits the video reception end command of the network camera 6A to the video distribution unit 17 of the main apparatus 1 (S917) and ends the video display (S918).

  The video distribution unit 17 of the main device 1 that has received the video reception end command in S917 transmits a video distribution end request command to the network camera 6A (S919), and the network camera 6A ends the video distribution (S920).

  Further, immediately after S914, the main device 1 transmits a monitor activation command to the monitor extension terminal 2B that is the next cyclic monitoring target (S921), and again activates a timer for performing automatic cyclic monitoring (S922). .

  The main device 1 notifies the video display extension terminal 4 of the terminal number and name information of the monitor extension terminal 2B as the monitor extension terminal information, and displays it on the video corresponding display unit 47 of the video display extension terminal 4 (S923).

  The monitor extension terminal 2B that has received the monitor activation command from the main apparatus 1 in S921 enters the monitor activation state (S924), and the sound input to the microphone 24B of the monitor extension terminal 2B is displayed as a monitor sound through the main apparatus 1. It is reproduced from the handset 44 or the speaker 45 of the extension terminal 4 (S925).

  Further, in order to display the video of the network camera together with the audio monitor, the main apparatus 1 transmits a video display start command designating the network camera 6B linked to the monitor extension terminal 2B to the video display extension terminal 4 almost simultaneously with S923. Then, the video display extension terminal 4 transmits the video reception start command of the network camera 6B to the video distribution unit 17 of the main device 1 (S927), and the video distribution unit 17 of the main device 1 sends to the network camera 6B. A video distribution start request command is transmitted (S928).

  The network camera 6B that has received the video distribution start request command in S928 starts distribution of the video signal (S929), and the video signal of the network camera received by the video distribution unit 17 of the main device 1 is displayed on the video display extension terminal 4. After being converted into a possible format (S930), it is transmitted to the video display extension terminal 4 and displayed on the video corresponding display unit 47 of the video display extension terminal 4 (S931).

  Thereafter, every time the timer expires, the same operation as S914 to S931 is repeated, and the monitor extension terminal 2 and the network camera 6 to be interlocked are sequentially switched.

DESCRIPTION OF SYMBOLS 1 ... Main apparatus 11 ... Central control part 12 ... Memory | storage part 13 ... Exchange processing part 14 ... Extension terminal communication part 15 ... Recording / reproducing part 16 ... LAN connection part 17 ... Video distribution unit 2 ... Monitor extension terminal 21 ... Control unit 22 ... Main device communication unit 23 ... Audio processing unit 24 ... Microphone 25 ... Speaker 26 ... Key operation Unit 27 ... Display unit 3 ... Extension terminal 31 ... Control unit 32 ... Main unit communication unit 33 ... Voice processing unit 34 ... Handset 35 ... Speaker 36 ... Key Operation unit 37 ... display unit 4 ... video display extension terminal 41 ... control unit 42 ... LAN connection unit 43 ... audio processing unit 44 ... handset 45 ... speaker 46 ... -Key operation unit 47 ... Video display unit 5 ... Switching hub 6 ... Network camera

Claims (3)

A telephone comprising: a main unit accommodating one or more extensions; one or more extension terminals connected to the extension; and a plurality of monitor extension terminals connected to the extension and having a function of inputting ambient sounds as monitor sounds A system,
The monitor extension terminal includes a monitor sound input means for inputting a surrounding sound of the own terminal as a monitor sound by a microphone provided in the own terminal, and a monitor for starting the monitor sound input means in response to a monitor activation command received from the main apparatus. Starting means; and monitor sound transmitting means for transmitting the monitor sound input by the activated monitor sound input means to the main apparatus as a monitor sound signal;
Any or all of the extension terminals transmit a monitor sound cyclic reception request command requesting that the monitor sound signals are sequentially received in a predetermined cyclic order from any or all of the monitor extension terminals to the main unit. Monitoring sound cyclic reception request command transmitting means, continuous reception request command transmitting means for transmitting to the main unit a continuous reception request command for requesting continuous reception of the currently received monitor sound signal, and currently receiving A cyclic return request command transmission means for transmitting a cyclic return request command to the main device to request the return of the cyclic order to the monitor extension terminal of the monitor extension terminal that is the transmission source of the monitor sound signal of a predetermined order, and the monitor extension Monitor extension terminal information receiving means for receiving monitor extension terminal information for identifying a terminal from the main apparatus, and receiving a monitor sound signal from the main apparatus. A monitor sound receiving means for a monitor sound reproducing means for reproducing a monitor sound signal said received, the display unit also provided in the own terminal monitor extension terminal information for identifying the monitor extension terminal said received connected to the own terminal Monitor extension terminal information display means for displaying on a display device,
The main apparatus includes: one or more monitor extension terminals that transmit the monitor sound signal; extension terminal registration means that registers information related to the extension terminal that receives the monitor sound signal; and the monitor sound from any of the extension terminals. Monitor sound patrol reception request command receiving means for receiving a patrol reception request command, patrol control command receiving means for receiving the continuous reception request command or the patrol return request command from the extension terminal, and the received monitor sound patrol reception request A monitor activation command transmitting means for transmitting the monitor activation command to a predetermined monitor extension terminal in response to a command or a cyclic return request command; and a monitor for receiving the monitor sound signal from the monitor extension terminal responding to the transmitted monitor activation command A sound receiving means and transmitting the received monitor sound signal to the extension terminal; Comprising a monitor sound transmission means, and a monitor extension terminal information transmitting means for transmitting the monitored extension terminal information identifying the source of the monitor extension terminal of the monitor sound signal to the extension terminal, and
When the main apparatus receives the monitor sound cyclic reception request command from an extension terminal registered in the extension terminal registration means or an extension terminal that has transmitted a specific signal including predetermined identification information, a predetermined time has elapsed. the monitor start command sequentially sends the monitor sound signal and said monitor said monitor sound received by the receiving means by the to each predetermined cyclic order of monitor extension terminals registered before Symbol the line terminal registration means each time Sending monitor extension terminal information identifying the extension terminal to the extension terminal;
If the continuous reception request command is received while the monitor sound signal is being transmitted, the monitor activation command is not transmitted to the next monitor extension terminal even if a predetermined time has elapsed,
If the cyclic return request command is received while the monitor sound signal is being transmitted, the cyclic order is returned to the monitor extension terminal of a predetermined order starting from the monitor extension terminal that is the transmission source of the currently received monitor sound signal. A telephone system having a patrol monitoring function, wherein the monitor activation command is sequentially transmitted to each of the monitor extension terminals. The telephone system having a patrol monitoring function according to claim 1,
The monitor extension terminal has input sensitivity adjustment means for adjusting ambient sound input sensitivity of a function of inputting ambient sound as monitor sound, and input sensitivity command receiving means for receiving an input sensitivity command related to the ambient sound input sensitivity from the main device. And further comprising
When the main apparatus receives the continuous reception request command from the extension terminal that is receiving the monitor sound signal, the main apparatus sends an input sensitivity command that increases the ambient sound input sensitivity to the monitor extension that is transmitting the monitor sound signal. Send it to the device,
A telephone extension system having a patrol monitor function, wherein the monitor extension terminal receiving the input sensitivity command increases the ambient sound input sensitivity by controlling the input sensitivity adjustment means in accordance with the received input sensitivity command. . In the telephone system having the patrol monitoring function according to claim 1 or 2,
The extension terminal comprises: a video signal receiving means for receiving a video signal from a predetermined network camera or the main unit, the video signal thus received also display the own terminal is provided on the display device connected with the own terminal Video display means for further comprising
The main apparatus includes linked camera registration means for registering a network camera linked to the monitor extension terminal, video signal acquisition means for acquiring a video signal from the registered network camera, and the acquired video signal to the extension terminal. A video signal transmitting means for transmitting,
When the main apparatus receives the monitor sound patrol reception request command from a predetermined extension terminal registered in advance, or receives a command requesting transmission of a video signal from an extension terminal to which the monitor sound signal is transmitted A monitoring monitor function characterized in that a video signal is acquired from a network camera linked to a monitor extension terminal that is a transmission source of the monitor sound signal, and the acquired video signal and the monitor sound signal are transmitted to the extension terminal. Having a telephone system.

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