JP6210889B2 - Train radio system - Google Patents

Description

  The present invention relates to a train radio system.

  In a conventional train radio system, an on-board device mounted on a train communicates with a ground device to control the operation of the train. In such a train radio system, in order to resume communication when communication between the train and the radio base station is interrupted due to the influence of disturbance or the like, it is necessary to search for an available communication channel. Therefore, it takes time to resume communication.

  For example, Patent Document 1 aims to realize handover without delay even when communication between a mobile unit and a base station is interrupted, and to reduce the time required for communication recovery from the communication disruption state. As the train has a correspondence database of base stations and communication frequencies, the train searches for communication frequencies for each base station, assigns a plurality of communication frequencies for each base station, and assigns an appropriate set of frequencies, A technique for reducing interference between base stations is disclosed.

JP 2008-99233 A

  However, according to the above-described conventional technology, the on-board radio device mounted on the train searches for the communication frequency for each base station at the time of restoration, and the on-board radio device erroneously connects to a radio base station outside the control range, A message cannot be received from the ground control device, and another time is searched after waiting for a timeout. For this reason, there is a problem that it takes time to specify the communication frequency.

  The present invention has been made in view of the above, and resumes communication without searching for a radio base station to communicate with when communication is restored (for example, when a train re-enters the radio train control section). The purpose is to obtain a train radio system.

  In order to solve the above-described problems and achieve the object, a train radio system of the present invention is a train radio system having a radio train control section on a part of a track, and the ground from a ground element on the track The on-board control device that generates the position information of the train based on the slave information and the train speed detected by the train, controls the train speed by checking the train speed with a speed check pattern, and the on-board control. An on-vehicle wireless device that transmits the position information from the device, a plurality of wireless base stations that are arranged in the wireless train control section and that have fixed frequencies for communicating with the on-vehicle wireless device, and the wireless base station A plurality of ground control devices that receive the position information via the position information and control the operation of the train based on the position information, and the first and last vehicles of the train include the on-board control device and On the car The on-board control device holds frequency information communicating with the radio base station when the train advances from the radio train control section, and the train has the radio train control section. When entering the vehicle, the onboard control device on the traveling direction side of the train outputs the frequency information to the onboard wireless device and resumes communication with the ground control device via the wireless base station. It is characterized by that.

  According to the present invention, since the frequency of the radio base station to be communicated is maintained when the train is restored (for example, when the train reenters the radio train control section), the radio base station to be communicated is searched for. The effect is that communication can be resumed without any problems.

FIG. 1 is a diagram illustrating a configuration of a train radio system according to the first embodiment. FIG. 2 is a diagram illustrating a configuration related to the train radio system of the leading vehicle of the train radio system according to the first embodiment. FIG. 3 is a diagram illustrating a configuration of the speed control unit of the leading vehicle of the train radio system according to the first embodiment. FIG. 4 is a diagram for explaining the operation of the train radio system when straddling the boundary between the radio train control section and the radio train control section according to the first embodiment. FIG. 5 is a diagram illustrating a configuration related to the train radio system of the leading vehicle of the train radio system according to the second embodiment. FIG. 6 is a diagram for explaining the operation of the train radio system when straddling the boundary between the radio train control section and the outside of the radio train control section according to the second embodiment. FIG. 7 is a diagram for explaining the operation of the train radio system when straddling the boundary between the radio train control section and the radio train control section according to the third embodiment.

  Hereinafter, embodiments of a train radio system according to the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

Embodiment 1 FIG.
FIG. 1 is a diagram showing a configuration of an embodiment of a train radio system according to the present invention. FIG. 1 shows an on-line management device 1, a train radio system network 2, ground control devices 3A to 3D, base networks 4A to 4D, radio base stations 5a to 5h, a train 6, a track 7, and ground units 8a to 8f. ing.

  The station management device 1 manages the ID of the onboard control device 67a or the onboard control device 67b of the leading vehicle of the train 6 in the train radio system, and backs up the base devices included in the ground control devices 3A to 3D. It is a device, and is used when the base device fails and restarts. Although not shown, the standing line management apparatus 1 includes a system management apparatus.

  The train radio system network 2 is an entire network in the radio train control section, and connects the on-line management device 1 and the ground control devices 3A to 3D.

  One ground control device 3A to 3D is provided at each base. Based on the position information received from the on-board radio device 61a or the on-board radio device 61b included in the train 6 within the area of each base, 6 is a device that tracks the current position of 6 and performs interlocking control, train interval control, and the like. Ground control devices 3A to 3D include a base terminal and a base device.

  The base networks 4A to 4D are networks provided for each base, and connect the base devices included in the ground control devices 3A to 3D and the radio base stations 5a to 5h. The handover point of each radio base station is managed by the ground control device, and the base station to be connected is determined by the location of the train 6. When the base station to be connected is incorrect and the ground control devices 3A to 3D receive the information on the on-board control device via a base station other than the base station for which the information is determined, the ground control devices 3A to 3D Do not send a message to control the train.

  The track 7 is a track operated by the train 6, and is roughly divided into a radio train control section and a radio train control section. That is, the track 7 is a track having a wireless train control section in part. In the radio train control section, the operation of the train 6 is controlled by the train radio system shown in FIG. Outside the radio train control section, the operation of the train 6 is controlled by means other than the train radio system such as a track circuit.

  In the track 7, ground elements 8a to 8f (position correction ground elements) are installed. In FIG. 1, ground elements 8b to 8e are arranged in areas A to D, ground elements 8a are arranged outside the radio train control section on the area A side, and ground elements 8a are arranged outside the radio train control section on the area D side. A child 8f is arranged. In FIG. 1, one ground element is installed in one area, but the present invention is not limited to this, and a plurality of ground elements may be installed in one area.

  The radio base stations 5a to 5h communicate with the on-board radio device 61a or the on-board radio device 61b included in the train 6. The wireless base stations 5a to 5h are assigned unique IDs (ID1 to ID8), respectively. The frequencies used for communication by the radio base stations 5a to 5h are fixed, and the frequencies of adjacent base stations are different.

  In FIG. 1, four frequencies (f1 to f4) are illustrated as frequencies used by the radio base stations 5a to 5h for communication, and the radio base stations 5a to 5d are assigned f1 to f4 in this order, The base stations 5e to 5h are assigned f1 to f4 in this order. f1, f2, f3, and f4 have different frequencies.

  The train 6 includes a vehicle 60a and a vehicle 60b at both ends. The vehicle 60a includes an on-vehicle wireless device 61a and an on-vehicle controller 67a, and the vehicle 60b includes an on-vehicle wireless device 61b and an on-vehicle controller 67b. The on-board control device 67 a and the on-board control device 67 b can communicate with each other via the communication line 68. When the train 6 travels from the region A side to the region D side, the vehicle 60b is the leading vehicle and the vehicle 60a is the tail vehicle. When the train 6 travels from the region D side to the region A side, the vehicle 60a is the leading vehicle and the vehicle 60b is the last vehicle.

  FIG. 2 is a diagram showing a configuration in the present embodiment relating to the train radio system of the vehicle 60a. A vehicle 60a shown in FIG. 2 includes an on-vehicle wireless device 61a, an on-vehicle control device 67a, a brake control device 64a, an on-vehicle element 65a, and a speed generator 66a. The on-board controller 67a includes a speed control unit 62a and an on-board element information receiving unit 63a. A vehicle 60b shown in FIG. 2 has the same configuration as the vehicle 60a, and includes an on-vehicle wireless device 61b, an on-vehicle control device 67b, a brake control device 64b, an on-vehicle element 65b, and a speed generator 66b. The on-board controller 67b includes a speed control unit 62b and an on-board element information receiving unit 63b.

  Note that FIG. 2 shows only the devices necessary for the description of the train radio system of the present invention, but it should be noted that other vehicle-mounted devices are actually mounted on the vehicle 60a.

  The on-board wireless device 61 a communicates with the wireless base stations 5 a to 5 h according to the current position of the train 6.

  The vehicle upper element 65a detects the ID (ground element information) of the ground element at the overlapping position (or a communicable position). This ID is received by the on-board information receiving unit 63a as on-board information. The onboard information is output from the onboard information receiving unit 63a to the speed control unit 62a.

  The speed control unit 62a detects the position of the ground unit based on the vehicle unit information from the vehicle unit information receiving unit 63a. Then, the speed control unit 62a calculates the travel distance (relative distance) from the reference position based on the speed information from the speed generator 66a using the absolute position of the ground unit as the reference position, and the vehicle 60a ( The position information 80 is generated by specifying the position of the train 6).

  The position information 80 is output to the on-vehicle wireless device 61a and set in the transmission frame by the on-vehicle wireless device 61a. Information other than the position information 80 (for example, an ID (train ID) for identifying each train) is set in the transmission frame. The transmission frame in which information is set in this way is transmitted to the radio base stations 5a to 5h.

  The radio base stations 5a to 5h that have received the transmission frame extract the position information 80 and the like, and the extracted position information 80 is one of the ground control devices 3A to 3D corresponding to the radio base station (for example, wireless If it is the base station 5a, it is transmitted to the ground control device 3A).

  The ground control devices 3 </ b> A to 3 </ b> D detect the position of the train 6 that operates in the area managed by the own device, and exchange position information 80 with other ground control devices via the train radio system network 2. Based on the above, stop limit position information 81 is generated, and the stop limit position information 81 is transmitted to the radio base stations 5a to 5h. The radio base stations 5a to 5h set the stop limit position information 81 in the transmission frame and transmit it to the on-vehicle radio device 61a. Information other than the stop limit position information 81 (for example, an ID (base station ID) for identifying each base station) is set in the transmission frame.

  In addition, the ground control devices 3 </ b> A to 3 </ b> D generate on-line management information from the position information 80 of the train 6 existing in its own area, and transmit it to the on-line management device 1 via the train radio system network 2. The standing line management device 1 grasps the positions of all trains in the wireless train control section based on the standing line management information.

  The on-board wireless device 61a that has received the transmission frame from the wireless base stations 5a to 5h extracts the stop limit position information 81 and transmits it to the speed control unit 62a. The speed control unit 62a generates a speed check pattern (a pattern signal indicating speed control characteristics) based on the stop limit position information 81, and checks the generated speed check pattern and speed information from the speed generator 66a. When the speed information from the speed generator 66a exceeds the speed check pattern, the speed control unit 62a generates a brake command 83 and transmits it to the brake control device 64a.

  For example, when the train 6 shown in FIG. 1 approaches beyond a train interval to be secured with respect to a preceding train (not shown), the speed control unit 62a generates a brake command 83 and transmits it to the brake control device 64a. And the brake is applied automatically.

  Thus, in the radio train control section, the train speed can be controlled without using a conventional track circuit. Therefore, not only cost reduction and safety improvement can be achieved, but also appropriate train interval control can be performed, and transportation efficiency can be improved.

  FIG. 3 is a diagram showing a configuration of the speed control unit 62a in the present embodiment. The speed control unit 62a includes a speed control element 70a and a storage unit 71a.

  The speed control element 70a specifies the position of the train 6 in the wireless train control section on the track 7 based on the speed information from the speed generator 66a, and outputs this position information 80 to the on-board wireless device 61a. Further, the speed control element 70a generates a speed check pattern based on the stop limit position information 81 received by the on-board wireless device 61a, and checks the speed check pattern and the speed information from the speed generator 66a. In response to this, a brake command 83 is generated and transmitted to the brake control device 64a.

  The memory | storage part 71a hold | maintains the frequency information 82 which the on-board radio | wireless apparatus 61a used for communication with a radio base station, when the train 6 advances out of a radio train control area from the inside of a radio train control area. The memory | storage part 71a needs to be able to hold | maintain the frequency information 82 even if supply of electric power stops, and can illustrate a non-volatile memory as a memory | storage element of the memory | storage part 71a.

  In addition, although the memory | storage part 71a should just hold | maintain any one of the frequency information or ID of a radio base station which was communicating when the train 6 advanced out of a radio train control area from the inside of a radio train control area, a memory | storage part When 71a holds only the ID of the radio base station, the correspondence relationship between the ID of the radio base station and the frequency is also stored. Or the structure which the memory | storage part 71a hold | maintains both frequency information and ID of a wireless base station may be sufficient.

  As described above, in the train radio system of the present invention, the frequency information 82 used by the on-board radio devices 61a and 61b for communication with the radio base station when moving out of the radio train control zone from the radio train control zone is stored. Since it is held in the unit 71a, communication can be started immediately without searching for a radio base station to be communicated when the train 6 enters the radio train control section again from outside the radio train control section.

  FIG. 4 is a diagram for explaining the operation of the train radio system when straddling the boundary between the radio train control section and the radio train control section in the present embodiment. FIG. 4A shows the time when the train 6 advances from the wireless train control section to the outside of the wireless train control section. FIG. 4B shows the train 6 from the outside of the wireless train control section to the wireless train control section. Indicates when to enter.

  As shown in FIG. 4, the trajectory 7 is subdivided into blocks, and each block is identified by a block number. This block number is registered in the on-board database of the on-board controllers 67a and 67b.

  In FIG. 4A, the train 6 runs from block 7001 to block 7004. Block 7001 is within the radio train control section, blocks 7003 and 7004 are outside the radio train control section, and block 7002 is a boundary section. In block 7002, which is a boundary section, whether the operation of the train 6 is controlled by the train radio system within the radio train control section or by the track circuit etc. outside the radio train control section is determined from the ground control device 3A. It depends on the message. Block 7003 is a radio train control end block, and block 7004 is a database end block.

  In FIG. 4B, the train 6 runs from block 7051 to block 7054. Blocks 7051 and 7052 are outside the radio train control section, block 7054 is inside the radio train control section, and block 7053 straddles the boundary between the radio train control section and the radio train control section. There is a station at the boundary between the radio train control section and the outside of the radio train control section. Block 7051 is outside the radio train control section, block 7054 is inside the radio train control section, and blocks 7052 and 7053 are boundary sections. It is determined from the ground control device 3A whether the operation of the train 6 is controlled by the train radio system within the radio train control section in the blocks 7052 and 7053 which are the boundary sections, or is controlled by the track circuit etc. outside the radio train control section. It depends on the message. Note that there may be a station or no station in the boundary section.

  In FIG. 4A, the train 6 communicates with the radio base station 5a (ID1) at the frequency f1 in the radio train control section with the vehicle 60a as the leading vehicle. When the train 6 crosses the boundary between the wireless train control section and the wireless train control section, the operation of the train 6 is switched to another control means such as a track circuit. When the train 6 completely moves outside the radio train control section and proceeds to the radio train control end block 7003, the on-board control device 67a outputs “stop transmission” to the on-board radio device 61a, and communicates with the radio base station 5a. The frequency information 82 (frequency f1) used for communication is held. Furthermore, the frequency information 82 is shared via the communication line 68 with the on-board control device 67b of the opposite cab. When the stop of communication is detected in the wireless train control end block 7003, the ground control devices 3 </ b> A to 3 </ b> D determine that they have advanced outside the system and end the tracking of the train 6. Train 6 then travels to the turning point. The train 6 that has advanced to the turning point operates with the vehicle 60b as the leading vehicle.

  In FIG. 4B, the train 6 operates under the control of a track circuit or the like with the vehicle 60b as the leading vehicle. If the upper element 65b of the vehicle 60b detects the ID (ground element information) of the ground element 8a for controlling the radio train in the boundary section outside the wireless train control section and before the wireless train control section, the position of the train 6 is determined. Confirm and recognize that the radio train control section is approaching. Note that there may be a plurality of radio train control ground elements installed outside the radio train control section. The on-board control device 67b passes the train position information message to the on-board wireless device 61b, and determines that the vehicle has entered the system and outputs “start transmission”. In addition, the on-board wireless device 61b uses the frequency information 82 (frequency f1) acquired via the communication line 68 to restart communication with the wireless base station 5a (ID1) at the frequency f1. The ground control devices 3A to 3D receive correct information via the determined base station, start train tracking, and transmit a train control message to the on-board control device. As described above, when the train 6 detects the ground element 8a at a position outside the radio train control section and communicable with the radio base station, the communication may be resumed.

  Alternatively, the block 7052 is defined as a communication connection block (connection block), and after the train 6 detects the ID of the ground unit 8a and determines the position, the on-board control device performs “train position information message” and “transmission start” And “frequency information” may be passed to the on-board wireless device 61b. Thus, when the train 6 enters the connection block outside the wireless train control section indicating that the wireless train control section in the on-board database starts, communication may be resumed.

  Thus, according to the train radio system of the present invention, since the frequency of the radio base station to be communicated is maintained when the train re-enters the radio train control section, the radio base station to communicate with is searched. Communication can be resumed.

Embodiment 2. FIG.
The train 6 in the train radio system of the present invention may include an on-vehicle radio / control device instead of the on-vehicle radio device and the on-vehicle control device. FIG. 5 is a diagram showing the configuration of the present embodiment relating to the train radio system of the vehicle 60a. A vehicle 60a shown in FIG. 5 includes an on-vehicle radio / control device 61A, a brake control device 64a, an on-vehicle element 65a, and a speed generator 66a. The on-vehicle wireless / control device 61A includes an on-vehicle wireless unit 601a and an on-vehicle control unit 607a. The on-vehicle controller 607a includes a speed controller 62a and an on-vehicle element information receiver 63a. A vehicle 60b shown in FIG. 2 has the same configuration as that of the vehicle 60a, and includes an on-vehicle radio / control device 61A, a brake control device 64b, an on-board member 65b, and a speed generator 66b. The on-vehicle wireless / control device 61B includes an on-vehicle wireless unit 601b and an on-vehicle control unit 607b. The on-vehicle control unit 607b includes a speed control unit 62b and an on-vehicle element information receiving unit 63b.

  Note that FIG. 5 also shows only the devices necessary for the description of the train radio system of the present invention, but it is noted that the vehicle 60a is actually equipped with other on-vehicle equipment.

  The on-vehicle wireless / control device 61A is a device having the functions of the on-vehicle wireless device 61a and the on-vehicle control device 67a in the first embodiment. However, in the first embodiment, the storage unit 71a included in the speed control unit 62a of the on-board controller 67a is included in the on-board wireless unit 601a. Further, the train 6 of the present embodiment does not have the communication line 68.

  The on-board radio unit 601a of the on-board radio / control device 61A communicates with the radio base stations 5a to 5h according to the current position of the train 6.

  The vehicle upper element 65a of the on-vehicle radio / control apparatus 61A detects the ID (ground element information) of the ground element at the overlapped position (or a communicable position). This ID is received by the on-board information receiving unit 63a as on-board information. The onboard information is output from the onboard information receiving unit 63a to the speed control unit 62a.

  The speed control unit 62a of the on-vehicle wireless / control device 61A detects the position of the ground unit based on the on-board unit information from the on-board unit information receiving unit 63a. Then, the speed control unit 62a calculates the travel distance (relative distance) from the reference position based on the speed information from the speed generator 66a using the absolute position of the ground unit as the reference position, and the vehicle 60a ( The position information 80 is generated by specifying the position of the train 6).

  The position information 80 is output to the on-vehicle wireless unit 601a, and is set in the transmission frame by the on-vehicle wireless unit 601a. Information other than the position information 80 (for example, an ID (train ID) for identifying each train) is set in the transmission frame. The transmission frame in which information is set in this way is transmitted to the radio base stations 5a to 5h.

  The radio base stations 5a to 5h that have received the transmission frame extract the position information 80 and the like, and the extracted position information 80 is one of the ground control devices 3A to 3D corresponding to the radio base station (for example, wireless If it is the base station 5a, it is transmitted to the ground control device 3A).

  The ground control devices 3 </ b> A to 3 </ b> D detect the position of the train 6 that operates in the area managed by the own device, and exchange position information 80 with other ground control devices via the train radio system network 2. Based on the above, stop limit position information 81 is generated, and the stop limit position information 81 is transmitted to the radio base stations 5a to 5h. The radio base stations 5a to 5h set the stop limit position information 81 in the transmission frame and transmit it to the on-board radio unit 601a. Information other than the stop limit position information 81 (for example, an ID (base station ID) for identifying each base station) is set in the transmission frame.

  In addition, the ground control devices 3 </ b> A to 3 </ b> D generate on-line management information from the position information 80 of the train 6 existing in its own area, and transmit it to the on-line management device 1 via the train radio system network 2. The standing line management device 1 grasps the positions of all trains in the wireless train control section based on the standing line management information.

  The on-board radio unit 601a that has received the transmission frame from the radio base stations 5a to 5h extracts the stop limit position information 81 and transmits it to the speed control unit 62a. The speed control unit 62a generates a speed check pattern (a pattern signal indicating speed control characteristics) based on the stop limit position information 81, and checks the generated speed check pattern and speed information from the speed generator 66a. When the speed information from the speed generator 66a exceeds the speed check pattern, the speed control unit 62a generates a brake command 83 and transmits it to the brake control device 64a.

  For example, when the train 6 shown in FIG. 1 approaches beyond a train interval to be secured with respect to a preceding train (not shown), the speed control unit 62a generates a brake command 83 and transmits it to the brake control device 64a. And the brake is applied automatically.

  FIG. 6 is a diagram for explaining the operation of the train radio system when straddling the boundary between the radio train control section and the radio train control section in the present embodiment. FIG. 6A shows the time when the train 6 advances from the wireless train control section to the outside of the wireless train control section, and FIG. 6B shows the train 6 from the outside of the wireless train control section to the wireless train control section. Indicates when to enter.

  In FIG. 6A, the train 6 communicates with the radio base station 5a (ID1) at the frequency f1 in the radio train control section with the vehicle 60a as the leading vehicle. When the train 6 crosses the boundary between the wireless train control section and the wireless train control section, the operation of the train 6 is switched to another control means such as a track circuit. When the train 6 has completely moved out of the radio train control section and proceeds to the radio train control end block 7003, the on-board control unit 607a outputs “stop transmission” to the on-board radio unit 601a, and communicates with the radio base station 5a. The frequency information 82 (frequency f1) used for communication is held in the storage unit 71a in the on-board wireless unit 601a. At this time, the frequency information 82 (frequency f1) is also held in the storage unit 71b in the on-board radio unit 601b of the opposite cab. When the stop of communication is detected in the wireless train control end block 7003, the ground control devices 3 </ b> A to 3 </ b> D determine that they have advanced outside the system and end the tracking of the train 6. Train 6 then travels to the turning point. The train 6 that has advanced to the turning point operates with the vehicle 60b as the leading vehicle.

  In FIG. 6B, the train 6 operates under the control of a track circuit or the like with the vehicle 60b as the leading vehicle. If the upper element 65b of the vehicle 60b detects the ID (ground element information) of the ground element 8a for controlling the radio train in the boundary section outside the wireless train control section and before the wireless train control section, the position of the train 6 is determined. Confirm and recognize that the radio train control section is approaching. The on-board control unit 607b passes the train position information message to the on-board wireless unit 601b, determines that the vehicle is entering the system, and outputs “start transmission”. The on-board wireless unit 601b resumes communication with the wireless base station 5a (ID1) at the frequency f1 using the frequency information 82 (frequency f1) held in the storage unit 71b when “transmission stop” is output. . The ground control devices 3A to 3D receive correct information via the determined base station, start train tracking, and transmit a train control telegram to the on-vehicle radio / control device. Also in the present embodiment, as described in the first embodiment, when the train 6 detects the ground element 8a at a position outside the radio train control section and capable of communicating with the radio base station, Communication may be resumed when the train 6 enters a connection block outside the radio train control section indicating that the radio train control section in the on-board database starts.

Embodiment 3 FIG.
FIG. 7 is a diagram for explaining the operation of the train radio system when straddling the boundary between the radio train control section and the radio train control section in the present embodiment. FIG. 7A shows the time when the train 6 moves out of the radio train control section from outside the radio train control section, and FIG. 7B shows the train 6 from outside the radio train control section to inside the radio train control section. Indicates when to enter.

  The train radio system shown in FIG. 7 is different from the train radio system shown in FIG. 6 in that the vehicle 60b does not have the on-vehicle radio / control device 61B. In the train radio system shown in FIG. 6, since the on-vehicle radio / control device 61A is provided only on the vehicle 60a side, only the vehicle 60a side communicates with the radio base stations 5a to 5h.

  In FIG. 7A, the train 6 communicates with the radio base station 5a (ID1) at the frequency f1 in the radio train control section with the vehicle 60a as the leading vehicle. When the train 6 crosses the boundary between the wireless train control section and the wireless train control section, the operation of the train 6 is switched to another control means such as a track circuit. When the train 6 completely moves out of the radio train control section and proceeds to the radio train control end block 7003, the on-board control unit 607a of the on-board radio / control device 61A outputs “transmission stop” to the on-board radio unit 601a. Then, the frequency information 82 (frequency f1) used for communication with the radio base station 5a is held. When the stop of communication is detected in the wireless train control end block 7003, the ground control devices 3 </ b> A to 3 </ b> D determine that they have advanced outside the system and end the tracking of the train 6. Train 6 then travels to the turning point. The train 6 that has advanced to the turning point operates with the vehicle 60b as the leading vehicle.

  In FIG. 7B, the train 6 operates under the control of a track circuit or the like with the vehicle 60b as the leading vehicle. However, since the vehicle 60b does not have the on-vehicle wireless / control device 61B, the vehicle 60a side which is the last vehicle communicates with the wireless base stations 5a to 5h. When the vehicle upper element 65a of the vehicle 60a detects the ID (ground element information) of the ground element 8a for controlling the radio train which is a boundary section outside the wireless train control section and is in front of the wireless train control section, the position of the train 6 is determined. Confirm and recognize that the radio train control section is approaching. The on-board control unit 607a of the on-board radio / control device 61B passes the train position information message to the on-board radio unit 601a, determines that the vehicle has entered the system, and outputs “start transmission”. The on-board wireless unit 601a restarts communication with the wireless base station 5a (ID1) at the frequency f1, using the frequency information 82 (frequency f1) held at the time of “transmission stop”. The ground control devices 3A to 3D receive correct information via the determined base station, start train tracking, and transmit a train control telegram to the on-vehicle radio / control device. Also in the present embodiment, as described in the first embodiment, when the train 6 detects the ground element 8a at a position outside the radio train control section and capable of communicating with the radio base station, Communication may be resumed when the train 6 enters a connection block outside the radio train control section indicating that the radio train control section in the on-board database starts.

  The train radio system according to the present invention described above is useful when the train control by the track circuit and the radio train control section coexist.

  DESCRIPTION OF SYMBOLS 1 Line management apparatus, 2 train wireless system network, 3A-3D ground control apparatus, 4A-4D base network, 5a-5h wireless base station, 6 train, 7 track, 8a-8f ground unit, 60a, 60b vehicle, 61A, 61B On-vehicle wireless / control device, 61a, 61b On-vehicle wireless device, 62a, 62b Speed control unit, 63a, 63b On-board information receiving unit, 64a, 64b Brake control device, 65a, 65b On-board unit, 66a, 66b Speed generator, 67a, 67b On-board controller, 68 Communication line, 70a Speed control element, 71a Storage unit, 80 Position information, 81 Stop limit position information, 82 Frequency information, 83 Brake command, 601a, 601b On-board radio unit 607a, 607b On-board control unit.

Claims (4)

A train radio system having a radio train control section on a part of a track,
A vehicle that generates position information of the train on the basis of ground element information from the ground element on the track and the train speed detected by the train, and controls the train speed by checking the train speed with a speed check pattern. An upper control unit;
An on-board wireless device that transmits the position information from the on-board control device;
A plurality of radio base stations arranged in the radio train control section, each of which has a fixed frequency to communicate with the on-board radio device;
A plurality of ground control devices that receive the position information via the wireless base station and control the operation of the train based on the position information;
The first vehicle and the last vehicle of the train have the on-board control device and the on-board radio device, respectively.
The on-board controller holds frequency information communicating with the radio base station when the train advances from the radio train control section,
When the train enters the wireless train control section, the on-board control device on the traveling direction side of the train outputs the frequency information to the on-board wireless device and transmits the frequency information to the ground via the wireless base station. A train radio system characterized by resuming communication with a control device. A train radio system having a radio train control section on a part of a track,
Generating position information of the train based on ground element information from the ground element on the track and the train speed detected by the train, controlling the train speed by checking the train speed with a speed check pattern, On-vehicle wireless and control device that transmits the position information;
A plurality of radio base stations arranged in the radio train control section, each of which has a fixed frequency to communicate with the on-vehicle radio and control device;
A plurality of ground control devices that receive the position information via the wireless base station and control the operation of the train based on the position information;
At least one of the first vehicle and the last vehicle of the train has the on-board wireless and control device,
The on-vehicle radio and control device holds frequency information communicating with the radio base station when the train advances from the radio train control section,
When the train enters the wireless train control section, the on-board wireless and control device on the traveling direction side of the train outputs the frequency information to the on-board wireless device via the wireless base station. A train radio system, wherein communication with the ground control device is resumed.   The said communication is restarted when the said train detects the ground element of the position which is outside the said radio train control area and can communicate with the said radio base station, The said communication is restarted. Train radio system.   The communication is resumed when the train enters a connection block outside the radio train control section indicating that the radio train control section in the on-board database starts. Item 3. The train radio system according to Item 2.

Images