JP7241521B2 - TRAIN POSITION DETECTION DEVICE AND TRAIN POSITION DETECTION SYSTEM - Google Patents

Description

The present invention relates to a train position detection device and a train position detection system.

2. Description of the Related Art Conventionally, an automatic train control (ATC) system, which uses a track circuit or a transponder beacon to grasp the position of a train on a train, has generally been used as a train signal control system. Also known is a wireless ATC system that performs train control mainly by recognizing the position of an on-board device. In the wireless ATC system, the on-board equipment is the main component, and the train position is converted by the tachometer and the position correction transponder (beacon). There are advantages that can be

As a wireless ATC system, the location information of the train (mobile body) is wirelessly transmitted from the on-board equipment (transmission equipment) of the train to the ground equipment (logic circuit) via multiple LCX (Leaky Coaxial Cables). A moving object information detection device is known that detects the position of the train by transmitting information (see Patent Document 1).

JP-A-60-22835

The above-mentioned wireless ATC system using LCX and wireless ATC system using space waves do not have a mechanism for detecting trains by track circuits, and do not have a mechanism for detecting train positions other than on-board equipment. In the event of a failure or power outage, the ground equipment uses the location information of the immediately preceding train to stop the trains in the system at safe intervals. However, in order to restore operation by the ATC system after the occurrence of a train with an uncertain position, it is necessary to evacuate the surrounding trains to a safe section, move the train in question to the reception position of the position correction transponder (beacon), It required a procedure to make the system re-recognize the position, and because it included work that relied on human attention, it was inevitable that transportation would be interrupted for a long time.

As another means of tracking the train position, it is conceivable to specify the train position during communication for each train radio base station used in the radio ATC system. However, in the case of an ATC system using LCX, the radio section (LCX, repeater, etc.) from the train radio base station is positioned as one antenna when viewed from the ground equipment, and the train radio base station is any relay There was a risk that it would take a long time to restore operation if a train with an uncertain position occurred because it was not possible to distinguish whether it was received by radio from the on-board equipment of the train via the aircraft.

A configuration is also conceivable in which the on-board equipment of the position-undetermined train determines the position information of the position-undetermined train according to the strength of the radio wave of the LCX. LCX utilizes the fact that the closer to a connected repeater, the stronger the radio wave. However, the strength of radio reception fluctuates wildly, and it fluctuates greatly depending on the surrounding environment and even slight differences in position, making train position determination on the side of the train unstable.

SUMMARY OF THE INVENTION An object of the present invention is to easily and reliably recognize the position information of a position uncertain train in a radio train control system.

In order to solve the above problems , the train position detection device of the present invention includes:
receiving means for receiving electronic message information from at least one of a plurality of repeaters on the ground side that wirelessly communicate with an on-board device of an arbitrary train via a plurality of leaky cables;
adding means for identifying a relay device from which the received electronic message information is received and adding relay identification information of the identified relay device to the electronic message information;
transmitting means for transmitting telegram information to which the repeater identification information is added to a ground side management device that manages train position information on the ground side;
The adding means specifies a channel used for communication by a relay device from which the electronic message information is received, and adds channel identification information of the specified channel to the electronic message information.

Further, desirably, when the receiving means receives the same message information from a plurality of adjacent repeaters, the adding means respectively specifies the repeater from which the received message information is received, and the specified repeater Add the repeater identification information of each to the message information,
The transmission means transmits a plurality of message information to which the repeater identification information is added to the ground side management device.

Also, desirably, the message information includes identification information of the corresponding train.

Also, desirably, the receiving means receives message information via a plurality of connection units connected to a transmission line between the ground management device and the plurality of repeaters.

Further, the train position detection system of the present invention is
receiving means for receiving electronic message information from at least one of a plurality of repeaters on the ground side that wirelessly communicate with an on-board device of an arbitrary train via a plurality of leaky cables;
adding means for identifying a relay device from which the received electronic message information is received and adding relay identification information of the identified relay device to the electronic message information;
a train position detecting device comprising: transmitting means for transmitting telegram information to which the repeater identification information is added to a ground side management device that manages train position information on the ground side;
a server that receives telegram information, temporarily stores it, and transmits the stored telegram information to the ground side management device when a position uncertain train occurs;
The transmission means transmits message information to which the repeater identification information is added to the server.

Advantageous Effects of Invention According to the present invention, it is possible to easily and reliably recognize the position information of a train whose position is uncertain in a radio train control system.

BRIEF DESCRIPTION OF THE DRAWINGS It is a system block diagram which shows the train control system and train position detection system of embodiment of this invention. It is a block diagram which shows a train, LCX, and a repeater. It is a block diagram which shows an on-vehicle device. (a) is a diagram showing the structure of a first ATC message. (b) is a diagram showing the structure of a second ATC message. (c) is a diagram showing the structure of a third ATC message. FIG. 4 shows the uplink and downlink track segments, LCX;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the present invention is not limited to the illustrated examples.

An embodiment according to the present invention will be described with reference to FIGS. 1 to 4. FIG. First, referring to FIG. 1, an overall configuration including a train control system 1 and a train position detection system 2 of this embodiment will be described. FIG. 1 is a system configuration diagram showing a train control system 1 and a train position detection system 2 according to this embodiment.

As shown in FIG. 1, the LCX radio train control system 1 includes LCXs 111 to 11n (n: any natural number) as radio signal transmission paths and transmitting/receiving antennas laid along a track 10 (FIG. 2). , repeaters 301 to 30n, distribution/synthesis unit 41, connection units 421 to 42n, E/O (Electronic/Optical signal)/O/E converters 431 to 43n, base station 50, and ground side management device and a wireless ATC device 60 as. The train position detection system 2 includes a train position detection device 70 and a server 80 .

The LCXs 111 to 11n are installed on both sides (upward direction and downward direction) of the track 10 over a distance of about 1.5 [km], for example. Radio signals transmitted and received via the LCXs 111 to 11n are set so that the transmission frequency and the reception frequency are different.

The repeaters 301 to 30n are connected to the LCXs 111 to 11n via radio signal connection lines, and to the E/O/O/E converters 431 to 43n via optical fibers F1 to Fn. It relays the transmission and reception of radio signals between the O/O/E converters 431-43n and the LCXs 111-11n. That is, the repeaters 301 to 30n demodulate the ATC telegrams 100 (radio signals modulated by optical signals) input from the E/O/O/E converters 431 to 43n into radio signals and transmit them to the LCXs 111 to 11n. , LCX 111 to 11n are modulated with optical signals and transmitted to E/O·O/E converters 431 to 43n. Further, it is assumed that the repeaters 301 to 30n are associated with repeater numbers #1 to #n in order.

It is assumed that a maximum predetermined number of trains 12 (for example, a maximum of 20 vehicles) as a whole enter the region of the track 10 where the LCXs 111 to 11n are installed. For example, the repeater 301 relays radio signal transmission/reception with one or more trains 12 entering the area of the LCX 111 . In this radio signal communication means, it is necessary to transmit uplink and downlink train data (ATC telegram 100, ATC telegram 200) through redundant paths, respectively. It is possible to transmit and receive data to and from on-board devices 20 (FIG. 2) of a plurality of trains 12 in the area by using different channels or different transmission timings. Let the numbers of these channels be channel numbers #1 to #C1 (C1: the maximum number of channels (eg, 4)). The number of radio signal channels relayed by the repeaters 302 to 30 n is the same as the number of channels of the repeater 301 .

The E/O/O/E converters 431 to 43n are connected to the repeaters 301 to 30n via the optical fibers F1 to Fn, respectively, and distribute/synthesize via the connection lines and connection units 421 to 42n of the radio signals. 41, and modulates radio signals between the repeaters 301 to 30n and the distributing/combining unit 41 with optical signals or demodulates the optical signals to relay transmission/reception. Specifically, the E/O/O/E converters 431 to 43n demodulate the radio signals modulated by the optical signals received from the repeaters 301 to 30n into radio signals and transmit the radio signals to the distribution/combining unit 41, The radio signal received from the distributing/combining unit 41 is modulated with an optical signal and transmitted to the repeaters 301 to 30n. The transmission line of the train control system 1 serves as a transmission line for transmitting radio signals, except for a communication network N described later and a section from the wireless ATC device 60 to the base station 50 .

The distributing/synthesizing unit 41 receives the ATC message 100 (radio signal) from the base station 50, distributes it, and transmits it to the E/O/O/E converters 431 to 43n. 43n via the connection units 421 to 42n for each repeater ATC telegram 200 (radio signal) is received and transmitted to the base station 50 .

The base station 50 is a train radio base station that relays signals transmitted and received between the on-board device 20 of the train 12 and the radio ATC device 60 via the repeaters 301 to 30n. The base station 50 modulates the ATC message 100 from the wireless ATC device 60 into a radio signal and transmits it to the distributing/synthesizing unit 41, and demodulates the ATC telegram 200 (radio signal) from the distributing/synthesizing unit 41. and a receiving unit 52 for transmitting to the radio ATC device 60 as a radio ATC device. In FIG. 1, one base station 50 is shown as a representative, but in reality, a plurality of base stations 50 are provided, for example, every 30 [km], and each base station 50 is connected via a plurality of LCXs. It transmits and receives data to and from the train 12 and is connected to the radio ATC device 60 .

The wireless ATC device 60 is a logic device installed in an equipment room or the like of a predetermined station, for calculating train stop positions and managing train position information and the like from on-board trains. The wireless ATC device 60 includes an arithmetic processing device such as a CPU (Central Processing Unit), a data storage device such as a ROM (Read Only Memory) and a RAM (Random Access Memory), a communication device, and the like. . A wireless ATC device 60 generates an ATC telegram 100 for controlling an on-board device 20 of a train 12, transmits the generated ATC telegram 100 to a base station 50, and receives an ATC telegram 200 including position information of the train 12 from the base station 50. .

The train position detection device 70 is connected to the connection units 421 to 42n, demodulates the ATC message 200 (radio signal) input via the connection units 421 to 42n, and adds information such as the repeaters 301 to 30n. It is a device that transmits to the server 80 as an ATC telegram 210 . The train position detection device 70 includes reception units 711 to 71n, a processing unit 72 as additional means, and a transmission unit 73 as transmission means.

The receiving units 711 to 71n are connected to the connecting units 421 to 42n, respectively, demodulate the ATC telegrams 200 (radio signals) from the E/O·O/E converters 431 to 43n, and output them to the processing unit 72 . The processing unit 72 adds the repeater numbers and channel numbers of the repeaters 301 to 30n of the transmission source to the ATC telegram 200 input from the receiving units 711 to 71n, and outputs the ATC telegram 210 to the transmitting unit 73 . The transmitting unit 73 transmits the ATC message 210 input from the processing unit 72 to the server 80 (transmits to the wireless ATC device 60 via the server 80).

The server 80 is a railway control server device that receives the ATC message 210 transmitted from the train position detection device 70, temporarily stores it, and transmits it to the wireless ATC device 60 via the communication network N as appropriate. The server 80 includes, for example, a CPU, a RAM, a nonvolatile data storage unit such as an HDD, and a communication unit. The communication network N is, for example, a leased line.

Next, with reference to FIG. 2, the communication portion between the on-board device 20 of the train 12 and the LCXs 111 to 11n will be described. FIG. 2 is a configuration diagram showing the train 12, LCXs 11n, 11(n-1), and repeater 30n.

As shown in FIG. 2 , the on-board device 20 is mounted on a train 12 running on the track 10 . Here, the radio communication between the LCX 11n of the LCXs 111 to 11n and the on-board device 20 will be mainly described, but the radio communication in other LCXs is the same.

The repeater 30n is a facility on the ground side that wirelessly transmits and receives information to and from the on-board device 20 of the train 12 via the LCX 11n. The repeater 30n demodulates the ATC telegram 100 (radio signal modulated by an optical signal) generated by the radio ATC device 60 and transmitted from the E/O/O/E converter 43n into a radio signal, and via the LCX 11n, The ATC telegram 200 (radio signal) is transmitted wirelessly to the on-board device 20, wirelessly transmitted from the on-board device 20, and received via the LCX 11n. and transmits it to the radio ATC device 60 .

The on-board device 20 includes a wireless communication unit (mobile station) 21 that transmits and receives data wirelessly between the LCXs 111 to 11n, processing for processing received information and transmitting information such as the position of the own train, and It includes an ATC on-board control device 22 for controlling on-board systems, a brake control device 23 for controlling disc brakes and the like. Although not shown, the ATC on-board control device 22 has a storage device that stores a speed check pattern, and upon receiving stop position information (control information), reads the speed check pattern from the storage device, The allowable speed is calculated based on the position and running speed of the train at that time, and the optimal braking force is calculated while comparing with the train speed, and a control signal is output to the brake control device 23 .

The radio ATC device 60 stores information such as train timetables, grasps the positions of all trains in operation, and manages the operation of trains. A train operation management system ( not shown) are connected via a transmission line or a communication network.

As the train operation management system, a system that has already been introduced for conventional lines, Shinkansen (registered trademark), etc. can be used. Further, the train operation management system is composed of a station device that is installed at each station and collects information for each station, a central device that collects information from each station device, and the like. The station equipment obtains train location information from track circuits, etc., and the central equipment grasps the status of the entire line by collecting information from each station equipment, so the train operation management system is real-time. It is possible to acquire certain train position information and display it on the command terminal.

Next, with reference to FIG. 3, the detailed device configuration of the on-board device 20 will be described. FIG. 3 is a block diagram showing the on-board device 20. As shown in FIG.

As shown in FIG. 3, the on-board device 20 includes a wireless communication unit (mobile station) 21, an ATC on-board control device 22, a brake control device 23, and a ground coil installed on the track 10. a transmitter/receiver (hereinafter abbreviated as an on-board element) 24 having an on-board element 24a for transmitting and receiving data, a tachometer generator 25 provided on an axle, and a train radio communication device 26. A radio communication unit (mobile station) 21 includes a modem unit 21A that modulates transmission data such as the ATC telegram 200 with a radio signal and demodulates the ATC telegram 100 (radio signal) received by the antenna AT, and multiplexes the radio frame. A demultiplexing/synthesizing unit 21B for demultiplexing received data such as the converted ATC telegram 100 for each channel and multiplexing transmission data for each channel into a radio frame.

The separating/synthesizing unit 21B separates call voice data and control data (stop position information, temporary speed limit information, etc.) included in the received data multiplexed into the radio frame, and separates call voice data on the transmission side from the train position data. It has a function of multiplexing data such as data into a radio frame, and the call voice data separated by the separation/synthesis section 21B is transmitted to the train radio communication device 26 provided in the crew seat.

The ATC on-board control device 22 calculates the travel distance from the product of the axle rotation speed and the wheel diameter based on the signal from the speed generator 25, calculates the position of the own train, and when passing the ground coil It has a function of correcting the position of its own train based on the information received by the onboard coil 24a. Then, the position information of the own train is transmitted to the wireless ATC device 60 by the wireless communication unit (mobile station) 21 as an ATC telegram 200 . The information received by the on-board coil 24a from the ground coil may be installation position information (km) of the ground coil itself, the remaining distance of the specified section, or the identification code of the ground coil. When the information to be received is the identification code of the beacon, a correspondence table between the identification code of the beacon and the installation position information is stored in advance in the storage device on the vehicle. Train positions can be modified.

In addition, the ATC on-board control device 22 is composed of an arithmetic processing device such as a CPU, a data storage device such as a ROM and a RAM, and the like. is used to read the speed check pattern from the data storage device, and the brake control signal is generated while comparing the speed check pattern with the own train's speed information and own train's position information. Although not shown, the ATC on-board controller 22 also receives a signal from the driver's seat brake notch, calculates a braking force corresponding to the brake notch signal, and outputs a control signal to the brake controller 23 .

Next, operations of the train control system 1 and the train position detection system 2 will be described with reference to FIGS. 4 and 5. FIG. FIG. 4A is a diagram showing the configuration of the ATC message 100. As shown in FIG. FIG. 4B is a diagram showing the configuration of the ATC message 200. As shown in FIG. FIG. 4(c) is a diagram showing the configuration of the ATC message 210. As shown in FIG. FIG. 5 is a diagram showing sections 10(m−1) to 10(m+1) and LCX 11(m−1) to 11(m+1) of the track 10 in the upward and downward directions.

In the train control system 1 , the radio ATC device 60 generates an ATC telegram 100 , modulates it into a radio signal at the base station 50 , and transmits it to the distributing/combining section 41 . As shown in FIG. 4A, the ATC message 100 has a header section 101 and a body section 102 . The header portion 101 includes a train ID and the like for identifying the train 12 to be controlled. The text portion 102 includes control data (stop position information, temporary speed limit information, etc.) indicating the control contents of the on-board device 20 of the train 12 corresponding to the train ID of the header portion 101 .

The distributing/synthesizing unit 41 distributes the ATC message 100 (radio signal) received from the base station 50 to all the repeaters 301 to 30n, and distributes the E/O/O/E converters 431 to 43n, the repeaters 301 to 30n to LCX 111-11n respectively. The LCXs 111 to 11n wirelessly transmit the received ATC message 100 (radio signal). When the train 12 is on the track 10 corresponding to any one of the radio-transmitted LCXs 111 to 11n, the radio communication unit 21 of the on-board device 20 of the train 12 receives the radio-transmitted ATC message 100 (radio signal).

The separating/combining unit 21B transmits the ATC telegram 100 received by the antenna AT and demodulated by the modem unit 21A to the ATC on-board control device 22, and the ATC on-board control device 22 receives the train ID of the header part 101 of the ATC telegram 1000. corresponds to its own train, and if it corresponds to its own train, it controls the brake control device 23 in accordance with the control data of the text section 102 .

In the on-board device 20, the ATC on-board control device 22 calculates and corrects the position information of the own train using the on-board coil 24 and the tachometer 25, and the ATC telegram 200 containing the position information of the own train. to generate As shown in FIG. 4B, the ATC telegram 200 has a header section 201 and a body section 202 . The header portion 201 includes the train ID of the own train and the like. The body part 202 includes the position information of the train (own train) of the train ID of the header part 201 and the like.

As shown in FIG. 2, when the on-board device 20 of the train 12 is in the section where only the LCX 11n and radio communication are performed, only the repeater 30n transmits the ATC telegram 200 (radio signal) on the train via the LCX 11n. Receive from device 20 . The repeater 30n transmits the received ATC message 200 (radio signal) to the distributing/synthesizing section 41 via the E/O/O/E converter 43n and the connecting section 42n. The distributing/combining unit 41 transmits the ATC message 200 to the wireless ATC device 60 via the base station 50 . The radio ATC device 60 receives the ATC message 200 and stores it in its own data storage unit.

At this time, the receiving unit 71n of the train position detection device 70 receives the ATC message 200 (radio signal) from the E/O/O/E converter 43n via the connecting unit 42n, and after demodulation, the multiplexed radio It outputs the frame to the processing unit 72 . The processing unit 72 separates the ATC message 200 from the channel of the multiplexed radio frame, and generates an ATC message 210 from the repeater number and channel number corresponding to the receiving unit (receiving unit 71n). The transmission unit 73 transmits the ATC message 210 to the server 80 .

As shown in FIG. 4C, the ATC message 210 has the ATC message 200 (header portion 201 and body portion 202) and a header portion 211. As shown in FIG. The header portion 211 includes the repeater number of the repeater from which the ATC message 200 was transmitted, the channel number of the channel through which the ATC message 200 was wirelessly transmitted, and the like. The processing unit 72 includes the repeater number #n corresponding to the receiving unit 71n that received the input ATC telegram 200 and the channel number (for example, channel number #N) in the radio frame containing the ATC telegram 200. A header part 211 is generated and added to the ATC message 200 to generate the ATC message 210 .

The server 80 receives the ATC message 210 from the train position detection device 70 and stores it in its own data storage unit. When the on-board device 20 of the train 12 is restarted due to a vehicle failure or power failure, the train position information in the body 202 of the ATC telegram 200 of the train 12 becomes uncertain information. becomes a position uncertain train. When a position uncertain train occurs, the wireless ATC device 60 requests the server 80 to send an ATC message 210 including the train ID of the position uncertain train in the header section 201 . The server 80 reads out the requested ATC message 210 from its own data storage unit and transmits it to the wireless ATC device 60 via the communication network N. FIG. For this reason, the wireless ATC device 60 can estimate the position of the train (here, the position of the track 10 corresponding to the repeater 30n) from the repeater number of the header section 211 of the corresponding ATC telegram 210, even for the position-undetermined train. ) can be recognized, and the channel used in the wireless communication can be recognized from the channel number of the header portion 211 .

As shown in FIG. 1, when the on-board device 20 of the train 12 is located at an intermediate position between the section on the track 10 corresponding to LCX11n and the section corresponding to LCX11(n−1), the on-board device 20 The ATC message 200 (radio signal) transmitted by is received by the repeaters 30n and 30(n-1) via both the LCXs 11n and 11(n-1). The two ATC telegrams 200 (radio signals) are radio signals having the same content, and are transmitted from repeaters 30n, 30(n-1) to E/O/O/E converters 43n, 43(n-1), respectively. It is transmitted to the connecting units 42n and 42(n−1) and the distributing/synthesizing unit 41. FIG. The distributing/combining unit 41 synthesizes two ATC telegrams 200 (radio signals). Since the radio signals have the same content, the ATC telegrams 200 (radio signals) become one radio signal after the merging, and are demodulated by the base station 50. After that, it is transmitted to the radio ATC device 60 .

Along with this, the two ATC telegrams 200 are transmitted from the connecting units 42n and 42(n-1) to the train position detecting device 70 and received by the receiving units 71n and 71(n-1). The processing unit 72 adopts both of the two ATC telegrams 200 . Based on the ATC message 200 demodulated by the receiving unit 71n, the processing unit 72 receives the ATC message 210 having the header part 211 including the repeater number #n and the channel number (for example, #N) corresponding to the repeater 30n. Based on the ATC message 200 demodulated by the unit 71(n-1), a header section 211 including the repeater number #(n-1) and the channel number (for example, #N) corresponding to the repeater 30(n-1) and an ATC telegram 210 having When a position uncertain train occurs and an ATC telegram 210 corresponding to the repeaters 30n and 30(n−1) is generated corresponding to the position uncertain train, the wireless ATC device 60 receives the server 80 According to the header part 211 of the two ATC telegrams 210 corresponding to the repeaters 30n, 30(n-1) received from the LCX 11n, 11(n- It can be recognized that it is near the boundary of 1).

Also, as shown in FIG. 5, consider a place where LCXs 11(m−1) to 11(m+1) (m: an integer smaller than n) are provided along the track 10 in the upward direction and the downward direction of the train 12. . Sections corresponding to LCX11(m−1) to 11(m+1) in the trajectory 10 are defined as sections 10(m−1) to 10(m+1). Each section of the track 10 has a length of 1.5 [km], for example.

Here, consider the case where the train 12 of the position uncertain train is generated and the on-board device 20 of the train 12 of the position uncertain train is located in the section 10m corresponding to the LCX 11m. Since the on-board device 20 is capable of wireless communication via the LCX 11m, the wireless ATC device 60 receives the ATC telegram 200 via the repeater 30m, the distribution/synthesis unit 41, the base station 50, and the like. In parallel, the server 80 is requested to receive the ATC telegram 210 of the train 12 of the position uncertain train generated by the train position detection device 70 .

The wireless ATC device 60 determines whether the train 12 of the position uncertain train is running in the up direction and is in the 10 m section, or is running in the down direction and is in the 10 m section. I can't tell if it was. Therefore, the wireless ATC device 60 acquires the train ID included in the header section 201 of the received ATC telegram 210, and in the protected section (for example, 2 [km]) immediately before entering the section 10 m corresponding to the acquired train ID. The position information of the train 12 when it is on the track is acquired from the data storage unit of the own machine. Let PZm1 be the protection zone in the upward direction corresponding to the section 10m, and let PZm2 be the protection zone in the downward direction corresponding to the section 10m. The wireless ATC device 60 determines whether the train 12 of the position-undetermined train is currently located in the 10 m upstream section, depending on which of the protection sections PZm1 and PZm2 the position information of the train 12 of the position-undetermined train immediately before entering is. It can be discriminated whether the train is on the line or whether the train is in the 10 m section in the down direction.

Also, the wireless ATC device 60 stores the position information of each train to be managed in its own data storage unit in association with information indicating whether the train is in the upward direction or the downward direction, and information on the location of each numbered track such as a station. If the train 12 of the train 12 with an uncertain position is located, the current position information can be obtained by referring to the information on whether the train is in the up or down direction corresponding to the previous position information corresponding to the train ID of the train 12 of the train 12 of the position uncertain train, or the information on the track number. It is possible to determine in which section the train 12 of the train 12 of the position uncertain train is located in the upward direction or in the downward direction, and on which track it is located.

As described above, according to the present embodiment, the train position detection device 70 performs wireless communication with the on-board device 20 of an arbitrary train 12 via the LCXs 111 to 11n. , receiving units 711 to 71n for receiving the ATC telegram 200, a processing unit 72 for identifying the repeater from which the received ATC telegram 200 is received and adding the repeater number of the identified repeater to the ATC telegram 200, the relay A transmission unit 73 for transmitting the ATC message 210 to which the machine number is added to the wireless ATC device 60 that manages the position information of the train on the ground side.

Therefore, in the radio train control system, when a position uncertain train occurs, the position information of the position uncertain train is transmitted to the position of the track 10 corresponding to the LCX of the repeater of the repeater number of the ATC telegram 210. can be easily and reliably recognized as More specifically, it can be expected to reduce the time required to confirm the train position manually in the recovery procedure when a train with an uncertain position occurs, and to improve safety through systematization. , there is no need to provide dedicated backup equipment (track circuit, axle detection, etc.), and modification of train radio equipment used in the wireless ATC system (addition of train position detection device 70) (and addition of ground server 80) Since it can be realized on a scale of 1, it has the advantages of low cost and low maintenance burden.

The processing unit 72 also identifies the channel used for communication by the repeater that received the ATC telegram 200 and adds the channel number of the identified channel to the ATC telegram 200 to obtain an ATC telegram 210 . Therefore, the wireless ATC device 60 can recognize the channel used by the position-undetermined train by referring to the channel number of the ATC message 210 of the position-undetermined train.

Further, when the receiving units 711 to 71n receive the same ATC telegram 200 from a plurality of adjacent repeaters, the processing unit 72 identifies and identifies the repeater from which the received ATC telegram 200 is received. The repeater number of each repeater is added to each ATC message 200, and a plurality of ATC messages 210 to which each repeater number is added are transmitted to the wireless ATC device 60.例文帳に追加For this reason, the wireless ATC device 60 can set the vicinity of the repeater (for example, the repeater 30n) that is the boundary between the adjacent LCXs (for example, LCX11(n−1), LCX11n) as the position on the train. Inaccuracies can be prevented.

Also, the ATC message 200 (210) includes the corresponding train ID. Therefore, the wireless ATC device 60 can use the train ID of the position uncertain train to refer to the past position information of the position uncertain train and its related information. For example, if the related information is information on the protection section, information on the up or down direction of the existing track 10, or information on the track number, the up or down direction of the current on-track 10 of the position uncertain train You can identify the direction and number.

In addition, the processing unit 72 transmits the ATC telegram 210 to which the header part 211 is added to the server 80 via the transmission unit 73, and the server 80 receives and temporarily stores the ATC telegram 210, and the position is uncertain. When a train starts, the stored ATC message 210 is transmitted to the wireless ATC device 60 in accordance with a request from the wireless ATC device 60 . The train position detection system 2 includes a train position detection device 70 and a server 80 . Therefore, unnecessary ATC telegrams 210 other than trains with uncertain positions are not transmitted to the wireless ATC device 60, so the processing load on the wireless ATC device 60 can be reduced.

The present invention is not limited to the above embodiments, and various improvements and design changes may be made without departing from the scope of the present invention.

Further, the detailed configuration and detailed operation of each component of the train control system 1 and the train position detection system 2 in the above-described embodiment can of course be changed as appropriate without departing from the gist of the present invention. is.

1 train control system 10 track 111 to 11n LCX
12 train 20 on-board device 21 wireless communication unit 22 ATC on-board control device 23 brake control device 24a on-board device 24 transceiver (on-board device)
25 speed generator 26 train radio communicator 301-30n repeater F1-Fn optical fiber 41 distribution/synthesis unit 421-42n connection unit 431-43n E/O/O/E converter 50 base station 51 transmission unit 52 reception unit 60 Wireless ATC device 2 Train position detection system 70 Train position detection devices 711 to 71n Reception unit 72 Processing unit 73 Transmission unit 80 Server N Communication network

Claims (5)

receiving means for receiving electronic message information from at least one of a plurality of repeaters on the ground side that wirelessly communicate with an on-board device of an arbitrary train via a plurality of leaky cables;
adding means for identifying a relay device from which the received electronic message information is received and adding relay identification information of the identified relay device to the electronic message information;
transmitting means for transmitting telegram information to which the repeater identification information is added to a ground side management device that manages train position information on the ground side;
The adding means specifies a channel used for communication by a repeater from which the electronic message information is received, and adds channel identification information of the specified channel to the electronic message information. When the receiving means receives the same message information from a plurality of adjacent repeaters, the addition means specifies each of the repeaters that received the received message information, and identifies the repeater identification information of the specified repeater. is added to the message information,
2. The train position detecting device according to claim 1 , wherein said transmitting means transmits a plurality of pieces of electronic message information to which said repeater identification information is respectively added to said ground side management device. 3. The train position detection device according to claim 1 , wherein the message information includes identification information of the corresponding train. 4. The receiving means according to any one of claims 1 to 3 , wherein said receiving means receives message information via a plurality of connection units connected to transmission lines between said ground side management device and said plurality of repeaters. A train position detection device as described. receiving means for receiving electronic message information from at least one of a plurality of repeaters on the ground side that wirelessly communicate with an on-board device of an arbitrary train via a plurality of leaky cables;
adding means for identifying a relay device from which the received electronic message information is received and adding relay identification information of the identified relay device to the electronic message information;
a train position detecting device comprising: transmitting means for transmitting telegram information to which the repeater identification information is added to a ground side management device that manages train position information on the ground side;
a server that receives telegram information, temporarily stores it, and transmits the stored telegram information to the ground side management device when a position uncertain train occurs;
The train position detecting system, wherein the transmitting means transmits message information to which the repeater identification information is added to the server.

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