JP2001278049A - Train radio communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a train radio communication system easily communicating with a train without considering the traveling position of the train. SOLUTION: This train communication system provided with the train carrying a mobile radio and a command table 1 performing the communication is so constituted that the mobile radio mounted on the train 4 transmits position registration information including an own train number to position receivers 9a-9z of radio base stations 3a-3z, the radio base stations 3a-3z receiving the position registration information inform the position registration signal to a central device 2, the central device 2 corresponds the base station and the train number based on the position registration information including the train number and displays them on the command table 1 so that a commander easily identifies the train to communicate and easily communicates therewith.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a train radio communication system capable of easily communicating with an arbitrary train at a command table regardless of a traveling position.

[0002]

2. Description of the Related Art In general, a train radio communication system for communicating a running train from a command table, as shown in FIG. 3, is provided with a mobile radio device arranged on a traveling route of a traveling train 4 and communicating with the train. It comprises a plurality of radio base stations 3a to 3z, a central device 2 connected to the plurality of radio base stations 3a to 3z, and a command table 1 for giving a command to the central device 2. As shown in FIG. 4, a handset 5 for making a call with a conductor or the like in a train 4, a numeric keypad 7 for inputting the number of a train for communication, and a handset 5 for selecting a radio base station for communication. A wireless station switch 6 and a display unit (not shown) for displaying a selected state or a communication state of the wireless station are provided.

[0003] In the train radio communication system configured as described above, when a command is issued from the command console 1 to a specific train, for example, the train 4 having a train number 111, the commander sets the handset 5 to off-hook. The base stations 3a to 3b which are considered to be close to the running train 4 are estimated on the basis of a timetable, an operation schedule, and the like, and the number of the wireless base station which is considered to be close is selected from the wireless station switch 6, and further, the numeric keypad 7 By inputting the train number of the designated train, central device 2 transmits a calling signal from the selected base station to the designated train 4, and communication with this selected base station is performed. The communication between the control console 1 and the train 4 is started by notifying the central unit 2 of the possible situation via the base station by a response signal.

[0004]

The train radio communication system according to the prior art configured as described above communicates when the corresponding train 4 is running near the base stations 3a to 3z designated from the command console 1. Although it is possible to do so, the train does not operate according to the operation schedule for some reason and communication cannot be performed if it is far from the specified base station, and the commander selects another base station. There was an inconvenience that you had to try calling. Further, the conventional train radio communication system says that the procedure in which the commander starts traveling must be checked based on the operation schedule while the train on which the commander is traveling is near any base station at that time, and the procedure for starting communication is complicated. There was a defect.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the disadvantages of the train radio communication system according to the prior art, and a commander making a call can easily start an arbitrary train without checking the running position of the train in advance. The purpose is to provide a train radio system that can call.

[0006]

In order to achieve the above-mentioned object, the present invention provides a vehicle having a mobile radio device mounted thereon and arranged between routes along which a plurality of trains assigned a unique train number run. A plurality of wireless base stations for performing communication with the mobile wireless device, a central device connected to the plurality of wireless base stations, and communication with the train by designating the train number to the central device; A mobile radio mounted on the train transmits position registration information including its own train number to the radio base station, and receives the position registration information. The station notifies the central unit of a position registration signal, and the central unit associates the base station with the train number based on the position registration information including the train number and displays the same on the command console.

[0007]

Hereinafter, a wireless train system according to an embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a diagram for explaining the configuration of a train radio communication system according to one embodiment of the present invention, and FIG. 2 is a diagram showing a command table of the train radio communication system according to this embodiment.

As shown in FIG. 1, a train radio system according to the present embodiment is arranged on a traveling route of a traveling train 4 and has a mobile radio device communicating with the train and a position receiver 9a for receiving a position registration signal from the train. To 9z, a central device 2 connected to the plurality of radio base stations 3a to 3z, and a command table 1 for giving a command to the central device 2. As shown in FIG. 2, the command console 1 includes a handset 5 for making a call with a conductor in a train 4, a numeric keypad 7 for inputting a train number for communication, and a radio base station for communication. And a radio station switch 6 for selecting a radio station, and a radio base station 3 that the corresponding train designated by the numeric keypad 7 based on the position registration signal from the train.
a train number display unit 10 for displaying whether the vehicle is located at a short distance from a to 3z, and a display unit (not shown) for displaying a selected state or a communication state of a radio station;
The location registration signal from the train is transmitted to a plurality of radio base stations 3a to 3z.
Are constantly received by the position receivers 9a to 9z, and a base station close to the train is monitored.

Next, the commander confirms that the train number 111 displayed on the train number display section 10 is aligned with the wireless station number 601 of the wireless station switch 6 and that the wireless station switch of the wireless station number 601 is present. 6, the central unit 2 transmits a calling signal from the selected radio base station 3a to the specified train 4, and indicates that the train 4 can communicate with the selected base station by a response signal. , The communication between the command console 1 and the train 4 is started by notifying the central unit 2 via the base station.

[0010] Therefore, the train radio system according to the present embodiment, when the commander calls the train, the central unit 2
Determines which base station is closer to the specified train based on the train number input from the numeric keypad 7 and the position registration signal received from the train 4 via the position receivers 9a to 9z,
By displaying the train number on the train number display section 10 in line with the corresponding base station number of the wireless station switch 6, the commander can easily call any train without estimating the train position. .

In the above embodiment, the case where the train is a single track is described. However, the present invention is not limited to this. For example, in the case of a double track, the train number display section displays a plurality of trains for one train number. You may comprise so that it is possible. Further, when the train is located in the middle of the radio station and the position registration signal from the train is received by both adjacent radio stations, each radio base station reduces the signal field strength of the position registration signal received by the position receiver. The transmission may be performed to a central device, and the central device may determine the signal electric field intensity and the traveling direction of the train and select a radio base station having a strong traveling direction and electric field intensity.

Further, according to the present invention, when the position registration signal is received by both adjacent radio stations, a radio base station having a signal electric field strength equal to or higher than a certain strength is selected, and the received position registration signal is set to a certain strength. In the following cases, the reception of a position registration signal from another radio base station for a predetermined time is waited, and even after the predetermined time elapses, when no other position registration signal is received, the radio base station having the predetermined strength or less is selected. Alternatively, if another position recording signal is received within the predetermined time, the stronger radio base station may be selected, and in this case, the traveling direction of the train may be selected as a factor.

In the above-described embodiment, an example has been described in which the commander looks at the train number display section of the command table and selects the radio base station switch. However, the present invention is not limited to this. The central station or the command console may be configured to automatically select and connect the radio base station using the electric field strength of the registration signal without pressing the radio station switch. Further, in the above-described embodiment, an example in which the position receiver for receiving the position registration information is provided is described. However, the position receiver may be included in a normal wireless device that communicates with the train of the wireless base station.

[0014]

As described above, the present invention relates to a train radio communication system including a train equipped with a mobile radio and a command table for communication, including a train number on which the mobile radio mounted on the train is mounted. The location registration information is transmitted to the wireless base station, and the wireless base station that has received the location registration information notifies the central unit of a location registration signal, and the central unit transmits the location registration information based on the location registration information including the train number. By displaying the station and the train number in association with each other on the command table, the commander can easily recognize the train on which the call is to be made and can easily make the call.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a configuration of a train wireless communication system according to an embodiment of the present invention.

FIG. 2 is a diagram showing a command table of the train wireless communication system according to the embodiment;

FIG. 3 is a diagram illustrating a configuration of a train radio communication system according to a conventional technique.

FIG. 4 is a diagram showing a command table of a train radio communication system according to the related art.

[Explanation of symbols]

1: Command table, 2: Central device, 3a to 3z: Wireless base station,
4: train, 5: handset, 6: radio station switch,
7: numeric keypad, 9a to 9z: position receiver, 10: train number display unit.

Claims (1)

[Claims] 1. A plurality of radio bases which are arranged between routes on which a plurality of trains running with a mobile radio mounted thereon and having a unique train number are run, and which communicate with the mobile radio. A train, a central device connected to the plurality of radio base stations, and a command table for communicating with the train by designating the train number to the central device; The mobile radio device mounted on the base station transmits location registration information including its own train number to the radio base station, and the radio base station receiving the location registration information notifies the central unit of a location registration signal, A base station and a train number are associated with each other based on location registration information including the train number and displayed on a command console.