JP4748866B2 - Train information system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a train information system, and more particularly to a train information system that can effectively perform communication between the ground and the vehicle, and, for example, a train number can be automatically and reliably set by the communication.
[0002]
[Prior art]
In predetermined train number setting stations such as a starting station and a return station, a train number which is train operation management information is set for a train to be operated. As a train number setting method, a train driver (driver) manually sets a train number by key operation, or an ID card storing a train number possessed by the crew card reader There are a card setting method that is read and set in step 1, an optical communication setting method that sets a train number by optical communication from the driver's seat toward the ground device, and the like. The train number set on the vehicle (train) is confirmed by contacting the ground side via the train radio, and the train starts running under the confirmation.
[0003]
A microwave (μ wave) that has a car unit on the car (train), a ground unit on the ground, and automatically sets the train number by exchanging data between the car unit and the ground unit. A transponder method is also considered.
[0004]
[Problems to be solved by the invention]
However, manual setting of train numbers using the above-mentioned conventional key operations may cause incorrect settings due to input errors, and card settings for train numbers using ID cards must prevent card misplacement and loss. The management may become complicated.
[0005]
In addition, when the μ-wave transponder method is adopted, the communication range of the ground unit is as small as a few meters. Therefore, if there are multiple train stop positions, the number of ground units installed increases accordingly and the equipment cost increases. is there. Further, when the number of ground elements increases, not only does the maintenance of these ground elements become troublesome, but there is a drawback that the maintenance work of the track becomes an obstacle. In addition, if the number of ground units is increased, there is a disadvantage that the beauty is impaired.
[0006]
Accordingly, the present invention has been made to solve the above-described drawbacks, and its purpose is to enable effective communication between the ground and the vehicle with a simple configuration, and to ensure transmission of train information. It is to provide a train information system that can be used in the future.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a train information system according to the present invention provides a ground telemeter device having an antenna for communicating with a train provided on the ground and stopped at a station, and a communication antenna provided on the vehicle. A first communication means for performing communication between the ground and the vehicle using a channel of a predetermined frequency band between the on-board telemeter devices having the vehicle and a train provided on the ground and approaching the station A microwave transponder-type second communication means that performs communication between the ground and the vehicle using a channel in a predetermined frequency band between the ground element and the vehicle element provided on the vehicle, and stops at the station. The train uses the first communication means, and the train approaching the station uses the second communication means to request train-specific information from the ground to the vehicle, Receive train specific information from above That train specific information receiving means and determines a train number by collating the train-specific information obtained from the train operation information and vehicle which are input in advance, the first for a train that stops at a station Train number transmitting means for transmitting from the ground toward the vehicle using the second communication means for a train approaching the station ,
Train number setting means for receiving the train number transmitted toward the vehicle and setting the train number on the vehicle.
[0008]
The channel used is a selected channel that detects the surrounding radio wave condition and does not interfere with other channels.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic configuration diagram when a train information system according to an embodiment is applied to train number setting, and an example in which the train information system is applied to a former station is shown.
[0010]
There are two platforms H1 and H2 at the station A, and the train i that stops at one of the platforms H1 is a train that is about to leave from station A, and is indicated by a two-dot chain line. The train B shows the train that is about to enter that station.
[0011]
On the ground side of Kou Station, there is a ground repeater 2 that connects a ground unit 1 for communication with a train approaching Kou Station (Train B in the example of Fig. 1), and a stop at Kou Station. A ground device 6 comprising a ground telemeter device 4 having an antenna 3 for communicating with a train (in the example of FIG. 1, train a) and a carrier sense device 5 is provided.
[0012]
The ground unit 1 is composed of a ground unit used in a well-known μ-wave transponder, and is configured to exchange data with a vehicle unit (antenna) provided on a vehicle to be described later.
[0013]
The ground repeater 2 is configured around a CPU, and is configured to be able to communicate with the vehicle upper side (train A or train B) via the ground element 1 and the ground telemeter device 4. The ground repeater 2 is configured such that train diagram information is input from a host device such as a train operation management device (not shown).
[0014]
The terrestrial telemeter device 4 includes a transmission / reception circuit (not shown) that can transmit and receive on the vehicle (train A) using a predetermined channel, which will be described later, selected by the carrier sense device 5. The communication range of the antenna 3 of the terrestrial telemeter device 4 is determined to be a predetermined narrow range that can communicate with a train (train A in the example of FIG. 1) stopped at the platforms H1 and H2 of the former station.
[0015]
The carrier sense device 5 can detect a wireless communication carrier used in the vicinity of the station A, and can select a channel that is a frequency band capable of communication between the ground and the vehicle without causing interference with the detected carrier. It is configured as follows. That is, the carrier sense device 5 includes a receiving circuit that detects a carrier wave (channel) used in the vicinity of the station A and a storage circuit that stores a plurality of (for example, 40) channels, although not shown. When the receiving circuit determines that a predetermined channel is already used, the receiving circuit can select another channel that does not compete with the channel. Specifically, in the receiving circuit, for example, when it is determined that, for example, the first channel is already used in another system on another route adjacent to the station A, it does not compete with the first channel. For example, the 23rd channel is selected, and thereafter, communication between the ground and the vehicle is performed using the 23rd channel. Of the plurality of channels stored in the carrier sense device 5, one channel (for example, the 23rd channel) is used preferentially at the station A or used in all the lines including the station A. As a channel to be used, that is, a default channel can be determined.
[0016]
If there is no possibility of interference with other systems because the station A is far away from other routes, the carrier sense device 5 is omitted and the ground and vehicles are used on a predetermined channel. You can communicate with each other.
[0017]
When a channel selected by the carrier sense circuit 5 or a predetermined channel when the carrier sense circuit 5 is omitted is continuously used at the station A, it is used at the station A in other systems. The channel cannot be used, and the channel is exclusively used at Kou Station, which has the advantage of effectively avoiding radio wave interference. Therefore, in order to be able to occupy the predetermined channel in this way, the terrestrial telemeter device 4 is devised so that the signal of the predetermined channel can be continuously transmitted.
[0018]
That is, since the predetermined channel is exclusively used at the station A, the terrestrial telemeter device 4 has a double system, a triple system, etc. so that the signal of the predetermined channel once selected by the terrestrial telemeter device 4 is not interrupted. It is composed of multiple systems. The ground device 6 including the ground telemeter device 4 is driven under an uninterruptible power supply (UPS).
[0019]
On-board devices 10 are respectively provided in trains a and b (including other trains not shown). Since the on-board devices 10 and 10 provided in each train are the same, the train A will be described as an example.
[0020]
The on-board device 10 provided in the train A communicates with the ground telemeter device 4 through the antenna 12 and a transmission / reception circuit (not shown) for exchanging data with the ground unit 1 through the vehicle top 11. And an on-board telemeter device 13 for the purpose. Note that the train i shown in Figure 1, but the on-board equipment 10 for one direction (e.g., upward direction) of the train b are shown, also provided on-board equipment for the other direction (e.g., downstream) ing.
[0021]
The on-board telemeter device 13 includes a transmission / reception circuit for transmitting / receiving to / from the ground telemeter device 4 using a predetermined channel selected by the carrier sense device 5, and is stored in a memory (not shown) of the on-board device 10. Stores in advance a manufacturer identification number, a model number, or unique information (hereinafter described as train-specific information) for specifying each train.
[0022]
Hereinafter, an example in which the train number is set using the ground telemeter device 4 and the on-board telemeter device 13 when the station A is the starting station or the vehicle base using the transmission control procedure of FIG. 2 will be described. In addition, it is assumed that train A is about to leave on the right side from this station.
[0023]
When the train A is about to leave from the home H1 and the ground device 6 is turned on and started up, the carrier sense device 5 first selects a channel that can be used at the station A. In this channel selection, the default channel is preferentially selected. Once the default channel is selected, the selected default channel is dedicated at the station A unless the ground device 6 is down, and therefore radio wave interference can be effectively prevented. When the default channel is used in another system, another usable channel other than the default channel is selected.
[0024]
The terrestrial repeater 2 and the terrestrial telemeter device 4 are set to the channel selected by the carrier sensor device 5 (see (1) in FIG. 2), and from the terrestrial telemeter device 4 on the vehicle (train A) Then, a predetermined signal for requesting the ID of the ground telemeter device 13 and train-specific information is transmitted (see (2) in FIG. 2). When other trains are also present on the home H2, each train is sequentially polled in time series.
[0025]
When the power of the on-board device 10 is turned on by turning on the master controller (mascon) of the train A and the signal from the ground telemeter device 4 is received, the on-board telemeter device 13 receives a predetermined value from the ground telemeter device 4. And the train specific information for identifying the train A are transmitted to the ground repeater 2 via the ground telemeter device 4 (see (3) in FIG. 2).
[0026]
In the ground repeater 2, since train operation management information such as train schedule information indicating that the train has the predetermined train number is input from a host device (not shown), the train repeater information is input. The train number of the train A is determined by comparing the train operation information that is present and the train-specific information obtained from the ground telemeter device 4. The train number determined by the ground repeater 2 is set in the on-board device 10 as the train number sent to the on-board telemeter device 13 via the ground telemeter device 4 ((4) in FIG. 2). reference). Of course, the train number set in the on-board device 10 is displayed on a display (not shown) provided in the cab.
[0027]
In addition, in the ground repeater 2, when the collation of the train operation management information input and the train specific information obtained from the ground telemeter device 4 is NO, the train specific information already obtained is cleared, The train specific information is requested again from the ground repeater 2 toward the vehicle.
[0028]
In the train A, when the setting of the train number is completed, the station check completion information indicating that the setting of the train number at the former station is completed is transmitted from the on-board telemeter device 13 to the ground telemeter device 4, and the transmitted station Check completion information is received by the terrestrial repeater 2 (see (5) in FIG. 2). Then, when the ground repeater 2 receives the station check completion information, the fact that it has been received is transmitted to the on-board telemeter device 13 via the ground telemeter device 4, and the series of train number settings is completed ((( 6)). As a result, the ground telemeter device 4 is disconnected from the communication state with the on-board telemeter device 13, and the on-board telemeter device 13 is turned off after the channel is reset to the default channel.
[0029]
The above example is an example using the carrier sense device 5. However, when the station A is not likely to interfere with other systems and a predetermined channel can be used in a fixed manner, the transmission control procedure of FIG. To the transmission control procedure in which carrier sense 5 is omitted.
[0030]
FIG. 3 shows a transmission control procedure in which the train number is automatically set when the former station is a turn-back station and a train that is going to enter (enters) the former station passes the ground element 1. The same control is performed when the station A is an intermediate station and the train number is changed at the intermediate station.
[0031]
When information indicating that the train B is approaching Kou Station from a track circuit (not shown) is input to the carrier sense device 5 via the ground repeater 2 (see (1) in FIG. 3), the ground unit 1, the ground In the repeater 2 and the terrestrial telemeter device 13, the use channel is set with the default channel as the priority selection channel (see (2) in FIG. 3). Of course, after the ground device starts moving, this use channel is set to a predetermined channel (default channel) unless the ground device 6 is down.
[0032]
When the train rod approaches the communication range of the ground child 1, train-specific information for identifying the train rod being sent is constantly received by the ground repeater 2 via the ground child 1 (FIG. 3). In response to the received signal, a response signal including channel information used by the ground unit 1 is transmitted from the ground unit 1 toward the vehicle (train B) (see FIG. 3). (Refer to (4)).
[0033]
Confirmation information indicating that the response signal has been received is transmitted from the train B that has received the response signal from the ground side toward the ground side (the ground repeater 2) (see (5) in FIG. 3). When receiving the confirmation information from the vehicle, the ground repeater 2 sets the train number based on the train specific information received from the upper side of the vehicle and the train operation management information and the vehicle ID input in advance to the ground repeater 2. The determined train number is sent and set to the on-board device 10 via the ground element 1 and the vehicle upper element 11 (see (6) in FIG. 3). Of course, the train number set in the on-board device 10 is displayed on a display (not shown) provided in the cab.
[0034]
In the case of the ground repeater 2, when the collation between the train operation management information being input and the train specific information obtained from the ground unit 1 is NO, the train specific information already obtained is cleared, and again The train-specific information is requested from the ground repeater 2 toward the vehicle.
[0035]
When the setting of the train number is completed in the train B, completion information indicating that the setting of the train number is completed is transmitted from the vehicle upper 11 to the ground repeater 2 via the ground element 1 and the transmitted completion. Information is received by the terrestrial repeater 2 (see (7) in FIG. 3).
[0037]
【The invention's effect】
A train information system according to the present invention includes a ground telemeter device having an antenna for communicating with a train provided on the ground and stopped at a station, and an on-vehicle telemeter device having an antenna for communication provided on the vehicle. The first communication means for communicating between the ground and the vehicle using a channel of a predetermined frequency band, and the ground unit and the vehicle for communicating with the train that is provided on the ground and approaches the station Second communication means of a microwave transponder system that performs communication between the ground and the vehicle using a channel of a predetermined frequency band between the received vehicle and the train that is stopped at the station For the train approaching the station using the first communication means, the second communication means is used to request train-specific information from the ground to the vehicle, and the train-specific information from the vehicle is obtained. Train specific information receiving means to receive Determines a train number by collating the train-specific information obtained from the train operation information and vehicle which are input in advance, using the first communication means for trains that stops at a station, the station For the train approaching the vehicle, the second communication means is used to receive the train number transmitting means for transmitting from the ground toward the vehicle and the train number transmitted toward the vehicle. Since it has the train number setting means set on the vehicle, information from the ground can be easily set on the vehicle, and the train number can be set automatically.
[0038]
Further, when the channel used is a selected channel that detects the surrounding radio wave state and does not interfere with other channels, the channel to be used can be easily selected.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of a train information system according to an embodiment of the present invention.
FIG. 2 is a transmission control procedure showing a control operation.
FIG. 3 is a transmission control procedure showing a control operation.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Ground element 2 Ground repeater 3 Antenna 4 Ground telemeter apparatus 5 Carrier sense apparatus 6 Ground apparatus 10 On-board apparatus 11 On-board element 12 Antenna 13 On-board telemeter apparatus I, B train

Claims (2)

A channel in a predetermined frequency band is used between a ground telemeter device having an antenna for communicating with a train installed on the ground and stopped at a station, and an on-vehicle telemeter device having an antenna for communication provided on the vehicle. First communication means for communicating between the ground and the vehicle,
A micro that communicates between the ground and the vehicle using a channel of a predetermined frequency band between the ground element for communicating with the train that is provided on the ground and approaching the station and the vehicle element provided on the vehicle. A second transponder-type communication means;
The first communication means is used for a train that stops at a station, and the second communication means is used for a train approaching the station. Train specific information receiving means for requesting information and receiving train specific information from the vehicle;
The train operation information input in advance and the train specific information obtained from the vehicle are collated to determine the train number . For the train stopped at the station, using the first communication means, For the approaching train, using the second communication means, train number transmitting means for transmitting from the ground toward the vehicle,
Train number setting means for receiving the train number transmitted toward the vehicle and setting it on the vehicle;
A train information system comprising:   2. The train information system according to claim 1, wherein the channel used is a selected channel that detects a surrounding radio wave condition and does not interfere with other channels.

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