JP2020090236A - Train position detection device and train position detection system - Google Patents

Abstract

To provide a wireless train control system by which position information of a train whose position is uncertain is easily and reliably recognized.SOLUTION: A train position detection device 70 comprises receiving units 711-71n which receive an ATC message 200 of a train 12 from at least one of ground-side relay machines 301-30n radio-communicating with an on-board device 20 of an arbitrary train 12 through LCXs 111-11n, a processing unit 72 which identifies the relay machine of a reception source of the received ATC message 200 and adds a relay machine number of the identified relay machine to the ATC message 200 and a transmitter unit 73 which transmits the ATC message 210 to which the relay machine number is added to a wireless ATC device 60 controlling position information of the train in the ground side.SELECTED DRAWING: Figure 1

Description

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

Conventionally, in a train signal control system, an ATC (Automatic Train Control) system of a method of grasping the position of a train using a track circuit or a transponder ground element has been generally used. In addition, a wireless ATC system is also known that mainly controls the train position by recognizing the position of the on-board device. In the wireless ATC system, the on-board device is the main component, and the train position is converted by the speed generator and the position correction transponder (ground element), so the equipment is slim in that it does not use the track circuit on the ground. There is a merit that can be realized.

As a wireless ATC system, position information of a train (moving body) is wirelessly transmitted from an onboard device (transmission device) of the train to a ground device (logical circuit) via a plurality of LCXs (Leaky Coaxial Cables). There is known a mobile body information detection device that detects the position of the train by transmitting (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 train detection mechanism by a track circuit and have no mechanism for detecting the train position other than the on-board device. It has a configuration in which the ground device uses the position information of the immediately preceding train to stop the trains in the system at a safe interval due to a failure or a power failure. However, in order to restore the operation by the ATC system after the occurrence of the position uncertain train, evacuate the surrounding train to a safe section or move the train to the receiving position of the position correction transponder (ground element), Prolonged transportation obstacles were unavoidable because the system needed a procedure to re-recognize the position, and it involved human attention.

In addition, as another means for tracking the train position, it is conceivable to identify the train position during communication in units of train radio base stations used in the wireless ATC system. However, in the case of the ATC system using LCX, the radio section (LCX, repeater, etc.) ahead of the train radio base station is positioned as one antenna when viewed from the ground equipment, and the train radio base station determines which relay It was not possible to distinguish whether it was wirelessly received from the on-board device of the train via the aircraft, and there was a risk that the operation recovery time would increase if a train with indeterminate position occurred.

A configuration is also conceivable in which the onboard device of the position indeterminate train determines the position information of the position indeterminate train according to the strength of the radio wave of the LCX. The LCX utilizes the fact that the radio wave becomes stronger as it gets closer to the connected repeater. However, the wireless reception strength fluctuates greatly and fluctuates greatly due to the surrounding environment and slight position differences, which makes the train position determination on the upper side of the car unstable.

An object of the present invention is to easily and surely recognize position information of a position indeterminate train in a wireless train control system.

In order to solve the above problems, the train position detection device of the present invention,
Receiving means for receiving telegram information of the train from at least one of a plurality of ground-side repeaters that wirelessly communicate with an on-board device of an arbitrary train via a plurality of leak cables.
An addition unit that specifies a relay device that is a receiving source of the received message information and adds the relay device identification information of the specified relay device to the message information.
And a transmission unit that transmits the electronic message information to which the relay machine identification information is added to a ground side management device that manages train position information on the ground side.

Further, preferably, the adding unit specifies a channel used for communication in a relay device that is a receiver of the message information, and adds channel identification information of the specified channel to the message information.

Further, preferably, when the receiving unit receives the same electronic message information from a plurality of adjacent relay units, the adding unit identifies each of the relay units from which the received electronic message information is received, and the identified relay unit. Add the repeater identification information of each to the message information,
The transmission means transmits a plurality of pieces of electronic message information to which the repeater identification information is added to the ground side management device.

Further, preferably, the electronic message information includes identification information of the corresponding train.

Further, preferably, the receiving unit receives the electronic message information via a plurality of connection units connected to a transmission path between the ground side management device and the plurality of relays.

Further, the train position detection system of the present invention receives and temporarily stores the electronic message information with the train position detection device, and when the position indeterminate train occurs, transmits the stored electronic message information to the ground side management device. And a server that
The transmission means transmits the electronic message information to which the relay device identification information is added to the server.

According to the present invention, it is possible to easily and reliably recognize the position information of a position-indeterminate train in a wireless train control system.

1 is a system configuration diagram showing a train control system and a train position detection system according to an embodiment of the present invention. It is a block diagram which shows a train, LCX, and a relay machine. It is a block diagram showing an on-board device. (A) is a figure which shows the structure of a 1st ATC telegram. (B) is a figure showing the composition of the 2nd ATC message. (C) is a figure showing the composition of the 3rd ATC message. It is a figure which shows the section of the track|truck of an up direction and a down direction, and LCX.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The present invention is not limited to the illustrated example.

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

As shown in FIG. 1, the LCX wireless train control system 1 includes LCXs 111 to 11n (n: any natural number) as radio signal transmission paths and transmission/reception 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 the wireless ATC device 60. 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 of the track 10 (upward and downward directions) over a distance of, for example, about 1.5 [km]. The 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 relays 301 to 30n are connected to the LCXs 111 to 11n via the connection lines of the radio signals, respectively, and are connected to the E/O/O/E converters 431 to 43n via the optical fibers F1 to Fn, respectively. It relays transmission/reception of wireless signals between the O/O/E converters 431 to 43n and the LCXs 111 to 11n. That is, the repeaters 301 to 30n demodulate the ATC telegram 100 (radio signal modulated by the optical signal) input from the E/O/O/E converters 431 to 43n into a radio signal and transmit it to the LCXs 111 to 11n. , ATX telegrams 200 (radio signals) input from the LCXs 111 to 11n are modulated with optical signals and transmitted to the E/O/O/E converters 431 to 43n. Further, it is assumed that the repeaters 301 to 30n are associated with the repeater numbers #1 to #n in order.

It is assumed that a maximum of a predetermined number (for example, 20 vehicles) of trains 12 as a whole enter the region of the track 10 in which the LCXs 111 to 11n are installed. In this case, for example, in the case of the repeater 301, transmission/reception of a radio signal with one or a plurality of trains 12 entering the area of the LCX 111 is relayed. Since the communication means by this radio signal needs to transmit the train data (ATC telegram 100, ATC telegram 200) in the up and down directions respectively through the redundant paths, a plurality of (for example, 4 channels) channels are prepared, It is possible to perform data transmission/reception with different channels or transmission timings with the on-board devices 20 (FIG. 2) of a plurality of trains 12 in the area. The numbers of the respective channels are channel numbers #1 to #C1 (C1: maximum number of channels (for example, 4)). The number of channels of radio signals relayed by the relays 302 to 30n is the same as the number of channels of the relay 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 are distributed/combined via the connection lines of the wireless signals and the connection units 421 to 42n. Connected to the unit 41, the wireless signal between the repeaters 301 to 30n and the distribution/synthesis unit 41 is modulated with an optical signal or demodulated from the optical signal 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/synthesis unit 41. The wireless signal received from the distributor/combiner 41 is modulated with an optical signal and transmitted to the repeaters 301 to 30n. The transmission path of the train control system 1 is a transmission path for transmitting a radio signal except for the communication network N described later and the section of the base station 50 from the radio ATC device 60.

The distribution/synthesis unit 41 receives the ATC telegram 100 (radio signal) from the base station 50, distributes the ATC message 100, transmits the ETC data to the E/O/O/E converters 431 to 43n, and the E/O/O/E converter 431. . To 43n, the ATC telegram 200 (radio signal) for each repeater is received via the connection units 421 to 42n 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 wireless ATC device 60 via the repeaters 301 to 30n. The base station 50 demodulates the transmitting unit 51 that modulates the ATC telegram 100 from the wireless ATC device 60 into a radio signal and transmits the radio signal to the distribution/synthesis unit 41, and the ATC telegram 200 (radio signal) from the distribution/synthesis unit 41. And a receiving unit 52 for transmitting to the wireless ATC device 60. In FIG. 1, one base station 50 is shown as a representative, but in reality, a plurality of base stations 50 are provided for each 30 [km], and each base station 50 is provided via a plurality of LCXs and the like. It transmits and receives data to and from the train 12 and is connected to the wireless ATC device 60.

The wireless ATC device 60 is a logical device that is installed in a device room of a predetermined station or the like, and manages train stop positions and manages train position information from the train. 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) or a RAM (Random Access Memory), a communication device, or the like. .. The wireless ATC device 60 generates an ATC telegram 100 for controlling the on-board device 20 of the train 12, transmits the ATC telegram 100 to the 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 telegram 200 (radio signal) input via the connection units 421 to 42n, and adds information such as the relay devices 301 to 30n. This is a device that transmits the ATC message 210 to the server 80. The train position detecting device 70 includes receiving units 711 to 71n, a processing unit 72 as an adding unit, and a transmitting unit 73 as a transmitting unit.

The reception units 711 to 71n are respectively connected to the connection units 421 to 42n, demodulate the ATC telegram 200 (radio signal) from the E/O/O/E converters 431 to 43n, and output the demodulated ATC telegrams 200 to the processing unit 72. The processing unit 72 adds the repeater numbers and the channel numbers of the transmission source repeaters 301 to 30n to the ATC message 200 input from the receiving units 711 to 71n, and outputs the ATC message 210 to the transmitting unit 73. The transmitting unit 73 transmits the ATC telegram 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 an on-track management server device that receives the ATC telegram 210 transmitted from the train position detection device 70, temporarily stores the ATC telegram 210, and appropriately transmits the ATC telegram 210 to the wireless ATC device 60 via the communication network N. 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 dedicated line.

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

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

The relay device 30n is a ground-side facility 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) wirelessly transmitted to the on-board device 20, wirelessly transmitted from the on-board device 20, and received via the LCX 11n is modulated with an optical signal, and is transmitted through the E/O/O/E converter 43n or the like. And transmits it to the wireless ATC device 60.

The on-board device 20 includes a wireless communication unit (mobile station) 21 that wirelessly transmits and receives data to and from the LCXs 111 to 11n, a process for processing the received information, and a process for transmitting information such as the position of the own train. An ATC onboard controller 22 that controls the vehicle upper system, a brake controller 23 that controls a disc brake, and the like are provided. Although not shown, the ATC on-vehicle control device 22 includes a storage device that stores a speed check pattern. When the stop position information (control information) is received, the speed check pattern is read from the storage device, and the speed check pattern is stored. The allowable speed is calculated based on the position and running speed of the train at that time, the optimum braking force is calculated while comparing with the train speed, and a control signal is output to the brake control device 23.

In the wireless ATC device 60, a train operation management system including a server that stores information such as a train schedule, grasps the positions of all running trains, and manages train operation, and a command terminal connected to the server ( (Not shown) are connected via a transmission line or a communication network.

As the train operation management system, it is possible to use a system that has already been introduced on conventional lines, Shinkansen (registered trademark) or the like. Further, the train operation management system is composed of a station device installed in each station and accumulating information for each station, a central device accumulating information from each station device, and the like. The train station management device obtains train presence information from track circuits, etc., and the central device collects information from each station device to grasp the situation of trains in the entire line area. It is possible to acquire train position information with a certain number and display it on the command terminal.

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

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 element installed on the track 10. It has a transceiver (hereinafter abbreviated as car top) 24 including a car top 24a for transmitting and receiving data, a speed generator 25 provided on an axle, and a train radio communication device 26. The wireless communication unit (mobile station) 21 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 a modulation/demodulation unit 21A that multiplexes into a radio frame. It is provided with a separation/synthesis unit 21B that separates received data such as the converted ATC telegram 100 for each channel and multiplexes transmission data for each channel into a radio frame.

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

The ATC on-board controller 22 calculates the traveling distance from the product of the axle rotation speed and the wheel diameter based on the signal from the speed generator 25 to calculate the position of the own train, and when passing the ground train. It has a function of correcting the position of the own train based on the information received by the train carrier 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 the ATC telegram 200. The information received by the on-board child 24a from the ground child may be the installation position information (about a kilometer) of the ground child itself, the remaining distance of the designated section, or the identification code of the ground child. If the information to be received is the identification code of the ground element, a correspondence table between the identification code of the ground element and the installation position information is stored in advance in a storage device on the vehicle, and by referring to this correspondence table, The position of the train can be modified.

Further, the ATC on-board control device 22 is composed of an arithmetic processing device such as a CPU and a data storage device such as a ROM and a RAM, and stores stop position information and temporary speed limit information included in the received ATC telegram 100. The speed check pattern is read from the data storage device by using it, and the brake control signal is generated while comparing the speed check pattern with the own train speed information and own train position information. Although not shown, the ATC on-board controller 22 also receives a signal from the brake notch of the driver's seat, calculates a braking force according 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. 4A is a diagram showing the configuration of the ATC message 100. FIG. 4B is a diagram showing the configuration of the ATC message 200. FIG. 4C is a diagram showing the configuration of the ATC message 210. FIG. 5 is a diagram showing sections 10 (m-1) to 10 (m+1) and LCX11 (m-1) to 11 (m+1) of the orbit 10 in the up and down directions.

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

The distributor/combiner 41 distributes the ATC telegram 100 (radio signal) received from the base station 50 to all the relays 301 to 30n, and the E/O/O/E converters 431 to 43n and the relays 301 to 30n. It transmits to LCX111-11n via each 30n. The LCXs 111 to 11n wirelessly transmit the received ATC message 100 (wireless signal). When the train 12 is on the track 10 corresponding to any one of the wirelessly transmitted LCXs 111 to 11n, the wireless communication unit 21 of the on-board device 20 of the train 12 transmits the wirelessly transmitted ATC message 100 (wireless). Signal).

The separation/combination unit 21B transmits the ATC telegram 100 received by the antenna AT and demodulated by the modulation/demodulation unit 21A to the ATC onboard control device 22, and the ATC onboard control device 22 transmits the train ID of the header unit 101 of the ATC telegram 1000. Determines whether or not it corresponds to the own train, and when it corresponds to the own train, the brake control device 23 is controlled according to the control data of the text section 102.

Further, in the on-board device 20, the ATC on-board control device 22 calculates and corrects the position information of the own train by using the on-board child 24 and the speed generator 25, and the ATC message 200 including the position information of the own train. To generate. As shown in FIG. 4B, the ATC message 200 has a header section 201 and a body section 202. The header section 201 includes the train ID of the own train and the like. The body section 202 includes position information of the train (own train) having the train ID of the header section 201.

As shown in FIG. 2, when the on-board device 20 of the train 12 is located in a section that wirelessly communicates with only the LCX 11n, only the relay device 30n transmits the ATC telegram 200 (radio signal) on the vehicle via the LCX 11n. It is received from the device 20. The repeater 30n transmits the received ATC telegram 200 (radio signal) to the distribution/combination unit 41 via the E/O/O/E converter 43n and the connection unit 42n. The distributor/combiner 41 transmits the ATC message 200 to the wireless ATC device 60 via the base station 50. The wireless ATC device 60 receives the ATC telegram 200 and stores it in its own data storage unit.

At this time, the reception unit 71n of the train position detection device 70 receives the ATC telegram 200 (radio signal) from the E/O/O/E converter 43n via the connection unit 42n, demodulates it, and then performs the multiplexed radio wave. The frame is output to the processing unit 72. The processing unit 72 separates the ATC telegram 200 from the channel of the multiplexed wireless frame, and generates the ATC telegram 210 from the repeater number and the 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 telegram 210 has an ATC telegram 200 (header portion 201, body portion 202) and a header portion 211. The header portion 211 includes a relay device number of a relay device that is a transmission source of the ATC message 200, a channel number of a channel on which the ATC message 200 is wirelessly transmitted, and the like. The processing unit 72 includes the repeater number #n corresponding to the receiving unit 71n that has received the input ATC telegram 200 and the channel number (for example, channel number #N) in the radio frame in which the ATC telegram 200 was included. A header section 211 is generated and added to the ATC telegram 200 to generate an ATC telegram 210.

The server 80 receives the ATC telegram 210 from the train position detection device 70 and stores it in its own data storage unit. In the on-board device 20 of the train 12, when a restart occurs due to a vehicle failure, a power outage, or the like, the position information of the train in the body portion 202 of the ATC telegram 200 of the train 12 becomes uncertain information and the train 12 Is a train with indeterminate position. When the position indeterminate train occurs, the wireless ATC device 60 requests the server 80 for the ATC message 210 including the train ID of the position indeterminate train in the header portion 201. The server 80 reads out the requested ATC telegram 210 from its own data storage unit and transmits it to the wireless ATC device 60 via the communication network N. For this reason, the wireless ATC device 60 also determines the position of the train (here, the position of the track 10 corresponding to the repeater 30n, from the repeater number of the header part 211 of the corresponding ATC message 210, even for the position indeterminate train. ) Can be recognized, and the channel used in the wireless communication can be recognized from the channel number of the header part 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 the LCX 11n and the section corresponding to the LCX 11(n−1), the on-board apparatus 20 The ATC telegram 200 (radio signal) transmitted by the relay station 30n, 30(n-1) is received via both the LCXs 11n, 11(n-1). The two ATC telegrams 200 (radio signals) are radio signals having the same content, and are transmitted from the repeaters 30n and 30(n-1) to the E/O/O/E converters 43n and 43(n-1), respectively. It is transmitted to the connection units 42n and 42(n-1) and the distribution/combination unit 41. The distributor/combiner 41 combines the two ATC telegrams 200 (radio signals), but since the radio signals have the same content, the ATC telegrams 200 (radio signals) become one radio signal after demodulation and are demodulated by the base station 50. After that, it is transmitted to the wireless ATC device 60.

At the same time, the two ATC telegrams 200 are transmitted from the connection units 42n, 42(n-1) to the train position detection device 70 and received by the reception units 71n, 71(n-1). The processing unit 72 employs both of the two ATC telegrams 200. Based on the ATC telegram 200 demodulated by the receiving unit 71n, the processing unit 72 has an ATC telegram 210 having a header portion 211 including a relay number #n and a channel number (for example #N) corresponding to the relay 30n, and receiving Based on the ATC telegram 200 demodulated by the unit 71(n-1), the header unit 211 including the relay number #(n-1) and the channel number (for example, #N) corresponding to the relay 30(n-1). And an ATC telegram 210 having When the position uncertain train occurs and the ATC telegram 210 corresponding to the relays 30n and 30(n-1) is generated corresponding to the position uncertain train, the wireless ATC device 60 causes the server 80 to operate. According to the header part 211 of the two ATC telegrams 210 corresponding to the relays 30n, 30(n-1) received from the position uncertain train, the position of the position uncertain train is near the relay 30n, that is, LCX11n, 11(n- It can be recognized that it is near the boundary of 1).

Further, as shown in FIG. 5, consider a place where the LCXs 11(m-1) to 11(m+1) (m; an integer smaller than n) are provided along the tracks 10 in the up and down directions of the train 12. .. In the orbit 10, sections corresponding to LCX 11(m-1) to 11(m+1) are set to 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 a case where the train 12 of the position uncertain train occurs 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 relay device 30m, the distribution/synthesis unit 41, the base station 50, etc. In parallel, the server 80 requests and receives the ATC telegram 210 of the train 12 of the position uncertain train generated by the train position detection device 70.

In the wireless ATC device 60, based on the received ATC telegram 210 alone, whether the train 12 of the position uncertain train traveled in the up direction and was in the section 10 m, or in the down direction, was in the section 10 m. I don't know. Therefore, the wireless ATC device 60 acquires the train ID included in the header section 201 of the received ATC telegram 210 and sets the section 10m corresponding to the acquired train ID as the protection section (for example, 2 [km]) immediately before entering. The position information of the train 12 when the train is on line is acquired from the data storage unit of the own device. The upward protection section corresponding to the section 10m is PZm1, and the downward protection section corresponding to the section 10m is PZm2. The wireless ATC device 60 determines whether the position information immediately before the train 12 of the position indeterminate train is in the protection section PZm1 or PZm2 depending on whether the current position indeterminate train 12 is in the up section 10m. It is possible to discriminate whether the train is running or is present in the down section 10m.

Further, the wireless ATC device 60 stores the position information of each train to be managed in the data storage unit of its own device in association with the information as to whether it is in the up direction or the down direction and the in-rail information of each track such as a station. In this case, the current information can be obtained by referring to the information indicating whether the train is the up direction or the down direction corresponding to the immediately preceding position information corresponding to the train ID of the train 12 of the position indeterminate train and the in-rail information of the numbered line. It is possible to determine whether the train 12 of the position uncertain train is in the up direction or in the down direction, and on which track.

As described above, according to the present embodiment, the train position detection device 70 includes at least one of the ground-side relay devices 301 to 30n that wirelessly communicate with the on-board device 20 of the arbitrary train 12 via the LCXs 111 to 11n. , A receiving unit 711 to 71n that receives the ATC telegram 200, a processing unit 72 that identifies a relay device that is a receiving source of the received ATC telegram 200, and adds the relay device number of the identified relay device to the ATC telegram 200, and a relay. The transmission unit 73 is provided for transmitting the ATC telegram 210 to which the machine number is added to the wireless ATC device 60 that manages train position information on the ground side.

Therefore, in the wireless train control system, when a position indeterminate train occurs, the position information of the position indeterminate train is used as the position of the track 10 corresponding to the LCX of the repeater of the repeater number of the ATC message 210. Can be recognized easily and surely. More specifically, it can be expected to improve the safety by shortening the work time and confirming the train position by human system in the recovery procedure when the position indeterminate train occurs, and detecting the position of the position indeterminate train. In, there is no need to install dedicated backup equipment (track circuit, axle detection, etc.), and repair 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 the scale of, there are advantages of low cost and low maintenance burden.

Further, the processing unit 72 identifies the channel used for communication by the relay device that is the reception source of the ATC telegram 200, and adds the channel number of the identified channel to the ATC telegram 200 to form the ATC telegram 210. Therefore, the wireless ATC device 60 can recognize the channel used by the position uncertain train by referring to the channel number of the ATC telegram 210 of the position uncertain train.

Further, when the receiving units 711 to 71n receive the same ATC telegram 200 from a plurality of adjacent relay units, the processing unit 72 respectively identifies and identifies the relay units from which the received ATC telegram 200 is received. The repeater numbers of the repeaters are added to the ATC message 200, respectively, and the plurality of ATC messages 210 with the repeater numbers added are transmitted to the wireless ATC device 60. Therefore, the wireless ATC device 60 can set the position of the train in the vicinity of the relay station (for example, the relay station 30n) that is the boundary between the adjacent LCXs (for example, LCX11(n-1) and LCX11n), and the location of the train can be set. You can prevent it from becoming inaccurate.

In addition, the ATC telegram 200 (210) includes the corresponding train ID. Therefore, the wireless ATC device 60 can refer to the past position information of the position uncertain train and its related information by using the train ID of the position uncertain train. For example, when the related information is information on the protected section, information on the up or down direction of the track 10 on the track, or information on the numbered track, the up or down direction of the track 10 on the current line of the position uncertain train is present. You can determine the direction and number.

Further, the processing unit 72 transmits the ATC telegram 210 to which the header unit 211 is added to the server 80 via the transmission unit 73, and the server 80 receives the ATC telegram 210 and temporarily stores the ATC telegram 210, and the position is uncertain. When a train occurs, the stored ATC telegram 210 is transmitted to the wireless ATC device 60 according to 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. For this reason, unnecessary ATC telegrams 210 other than the position uncertain train are not transmitted to the wireless ATC device 60, so that the processing load on the wireless ATC device 60 can be reduced.

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

Further, it is needless to say that 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 be appropriately changed without departing from the spirit of the present invention. Is.

1 Train control system 10 Tracks 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 child 24 transceiver (on-board child)
25 speed generator 26 train radio communication device 301 to 30n repeater F1 to Fn optical fiber 41 distribution/synthesis unit 421 to 42n connection unit 431 to 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 (6)

Receiving means for receiving telegram information from at least one of a plurality of ground-side repeaters that wirelessly communicate with an on-board device of an arbitrary train via a plurality of leak cables.
An addition unit that specifies a relay device that is a receiving source of the received message information and adds the relay device identification information of the specified relay device to the message information.
A train position detection device, comprising: a transmission unit that transmits the telegram information to which the relay device identification information is added to a ground side management device that manages train position information on the ground side. The train position detecting device according to claim 1, wherein the adding unit specifies a channel used for communication by a relay device that is a receiver of the electronic message information, and adds the channel identification information of the specified channel to the electronic message information. The adding means, when the receiving means receives the same message information from a plurality of adjacent repeaters, specifies the respective repeaters from which the received message information is received, and repeater identification information of the specified repeaters. To each message information,
The train position detecting device according to claim 1 or 2, wherein the transmitting unit transmits a plurality of pieces of electronic message information to which the relay device identification information is added, to the ground side management device. The train position detecting device according to any one of claims 1 to 3, wherein the electronic message information includes identification information of a corresponding train. 5. The receiving device according to claim 1, wherein the receiving unit receives the electronic message information via a plurality of connection units connected to a transmission path between the ground side management device and the plurality of repeaters. The train position detection device described. A train position detection device according to any one of claims 1 to 5,
A server for receiving and temporarily storing the electronic message information and transmitting the stored electronic message information to the ground-side management device when a position indeterminate train occurs,
The train position detection system, wherein the transmitting unit transmits the electronic message information to which the relay device identification information is added to the server.

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