JP5355495B2 - Signal security system - Google Patents

Description

  The present invention relates to a railway signal security system, and more particularly to a signal security system in which a railway interlocking device and a field signal device are connected via a network.

  In the electronic interlocking device, in order to reduce the huge number of power cables laid for each control output from the station equipment room where the interlocking logic unit exists to field devices such as track circuits, traffic lights, and switchboards. A field network control terminal equipped with an arithmetic processing unit is connected to a field device, and a communication network of a connection between the interlocking logic unit and the field device control terminal is being promoted. Also in Patent Document 1, wiring saving is performed by networking. Moreover, there exists an example like patent document 2 which carries out autonomous distributed control of a field device for the purpose of the operation rate improvement of a cooperation apparatus.

Japanese Patent No. 2705818 JP 2007-91178 A

  Although distributed control of field devices has been proposed, it is difficult to realize due to the difficulty of maintaining communication lines and the complexity of autonomous distributed control logic, so state information from field devices is still centrally processed by the interlocking logic unit The interlocking device is the main component. Even if the communication between the interlocking logic unit and the field device control terminal is networked, a format in which the interlocking logic unit processes the route control in the center is mainly used.

  In the central processing type interlocking device, even if there is a field device control terminal equipped with an arithmetic processing device for controlling each field device, the processing at the field device control terminal interprets the control message transmitted over the network. Only the control output is performed, and the tracked circuit presence determination, the switchover instruction of the switch, the change of the signal display, etc. are all centrally processed by the interlocking logic unit.

  Therefore, when the interlocking logic unit stops, the field device control terminal cannot receive the control message, and the correct control output is unknown. Therefore, all signals on the premises are stopped and the train operation is stopped as safety-side control. did. Stopping train operation is an event that railway operators want to avoid because it takes a long time to return to a normal schedule due to the time until recovery and disruption of the schedule after recovery. Therefore, it is desirable not to stop the train operation completely even if the central interlocking logic unit stops.

  An object of the present invention is to provide a signal security system that realizes operation in a degenerate mode in which route control is continued only by a field device control terminal even when communication from the interlocking logic unit to the field device control terminal is interrupted. To do.

The signal security system of the present invention includes at least one field device as a track circuit, a switch, a traffic light, a field device control terminal provided corresponding to each field device, and controlling the field device, Based on the status information from each field device, the link logic unit that controls the corresponding field device control terminal, and a network that connects the link logic unit and the field device control terminal, the link logic unit via the network Control information to each of the field device control terminals, and status information from each of the field device control terminals to the interlocking logic unit, respectively, in the route control of the train, If the transmission path for transmitting and receiving state information between the field controllers constituting the route and has the function, can not receive the information from the interlocking controller, the field controllers Receiving the status information necessary to Luo path control, based on the state information consists of the field controller having wayside equipment control logic for maintaining train route control, to realize the route controlled by the field controllers In the signal security system, there is a field device control logic 1 when the interlocking logic unit is operating, and a field device control logic 2 for maintaining the route control while the interlocking logic unit is stopped, and communication from the interlocking logic unit. Has the function of detecting that information cannot be received due to interruption, and the function of switching the field device control logic from the field device control logic 1 to the field device control logic 2 when it is detected that the information from the interlocking logic unit cannot be received. The field device control terminal of the track circuit that has detected that the information from the interlocking logic unit cannot be received is transmitted to the field device control logic 2 Switch the control logic and send the status information to the field equipment control terminal of the switch and traffic light. In the case of the field equipment control terminal of the switch and traffic light, the status information from the field equipment control terminal of the track circuit above. The on-site equipment control logic is switched on condition that it is received .

  According to the present invention, even when the interlocking logic unit stops and communication from the interlocking logic unit to the field device control terminal is interrupted, the signal that realizes the operation in the degenerate mode in which the route control is continued only by the field device control terminal. By realizing the security system, it is possible to reduce the operation stop time and the diamond recovery time and improve the operation rate of the signal security system.

FIG. 1 is a diagram showing a configuration of a first embodiment of a signal security system according to the present invention. FIG. 2 is a diagram showing the configuration of the network type electronic interlocking device during normal operation. FIG. 3 is a diagram showing a logical block configuration in the field device control terminal according to the present invention. FIG. 4 is a diagram showing an interlocking chart of the first embodiment of the signal security system according to the present invention. FIG. 5 is a flowchart of the switching process from the normal control mode to the degeneration mode of the track circuit control terminal according to the first embodiment of the present invention. FIG. 6 is a diagram showing a flowchart of the switching process from the normal control mode to the degeneration mode of the switch control terminal according to the first embodiment of the present invention. FIG. 7 is a diagram showing a flowchart of the switching process from the normal control mode to the degeneration mode of the traffic light control terminal according to the first embodiment of the present invention. FIG. 8 is a flowchart of the switching process from the degeneration mode to the normal control mode of the track circuit control terminal according to the first embodiment of the present invention. FIG. 9 is a flowchart of the switching process from the degeneration mode to the normal control mode of the switch control terminal according to the first embodiment of the present invention. FIG. 10 is a flowchart of the switching process from the degeneration mode to the normal control mode of the traffic light control terminal according to the first embodiment of the present invention. FIG. 11 is a diagram showing a logic block configuration in the field device control terminal according to the second embodiment of the present invention. FIG. 12 is a diagram showing a logic block configuration in the field device control terminal according to the third embodiment of the present invention. FIG. 13: is a figure which shows the block configuration of the logic in the field equipment control terminal of the switchboard which concerns on Example 4 of this invention. FIG. 14: is a figure which shows the flowchart of operation | movement of the degeneration mode of the switch control terminal of Example 4 which concerns on this invention. FIG. 15 is a diagram showing the configuration of Embodiment 5 of the signal security system according to the present invention. FIG. 15 is a diagram showing a configuration when the interlocking logic unit of the signal security system according to the fifth embodiment of the present invention operates normally. FIG. 17 is a diagram showing a logic block configuration in the field device control terminal according to the fifth embodiment of the present invention. FIG. 18 is a diagram showing route information according to the fifth embodiment of the present invention. FIG. 19 is a diagram showing a flowchart of the operation in the degeneration mode of the switch control terminal according to the fifth embodiment of the present invention. FIG. 20 is a diagram showing a flowchart of the operation in the degeneration mode of the traffic signal control terminal according to the fifth embodiment of the present invention. FIG. 21 is a diagram showing a logic block configuration in the field device control terminal according to the seventh embodiment of the present invention.

  Regarding the signal security system that realizes the operation in the reduced mode that continues the route control with only the field device control terminal even when the communication logic unit stops and communication from the link logic unit to the field device control terminal is interrupted, Embodiments will be described with reference to the drawings.

  FIG. 1 is a diagram showing a configuration of a signal security system according to the first embodiment of the present invention, and shows a state when the interlocking logic unit is stopped. FIG. 2 shows a state when the interlocking logic unit is operating normally in the signal security system of FIG.

  Each field device control terminal having an interlocking logic unit and an arithmetic processing unit is connected by a network. The field device control terminals are also connected to each other via a network. The field device control terminals connected to each other include at least field device control terminals that constitute a course.

  In the interlocking device connected by the network, the display telegram 30 (field line information from the track circuit, the direction of the switch, the indication of the traffic light, etc.) transmitted from the field device control terminals 21 to 23 to the interlocking logic unit 10 ), The interlocking logic unit 10 calculates the control output of the next control cycle, and transmits the control telegram 40 to the field device control terminals 21 to 23.

  The field device control terminals 21 to 23 read the control telegram 40 and output the instructed control output. Then, the output result is transmitted as the display telegram 30 to the interlocking logic unit 10 again. The field device control terminals 21 to 23 may be installed in the station device room or may be installed in the immediate vicinity of the field device.

  In the embodiment of the present invention, when the interlocking logic unit 10 is operating normally, the above operation is performed as the normal control mode. When the interlocking logic unit 10 stops, this is detected, and simple route control is realized only with the field device control terminal without using the interlocking logic unit as the degeneration mode.

  FIG. 3 is a diagram showing a logical block structure in the field device control terminal 20. An arithmetic processing unit (CPU) receives a control telegram from the interlocking logic unit, determines the stoppage of the interlocking logic unit, and switches the on-site equipment control logic to switch the on-site equipment control logic and logic switching unit 20a, normal control mode Field device control logic 20b and a degenerate mode field device control logic 20c.

The control input / output unit 20d inputs the track line presence information and the control output to the switch / signal device via the interlocking logic unit stop determination unit and the logic switching unit 20a. The interlocking logic unit stop determining unit and the logic switching unit 20a determine which of the on-site device control logic 20b in the normal control mode and the on-site device control logic 20c in the degenerate mode is to be operated. Switching is performed by the stop determination unit and the logic switching unit 20a.
The control input / output unit 20d includes a circuit including a relay, a switch, and a sensor. The arithmetic processing unit (CPU) controls the field devices by operating the relays and switches, and recognizes the state of the field devices by taking in the state of the relays and switches by the sensor.

  In FIG. 1, the operation of the field device control terminals 21 to 23 of the present invention in the degeneration mode will be described. In the degenerate mode, the field device control terminal transmits its display message 30 to the related field device control terminal.

  If it is the field device control terminal 21 of the track circuit, the display telegram 30 is transmitted to the field device control terminal 22 of the switch and the field device control terminal 23 of the traffic light.

  If it is the field device control terminal 22 of the switch machine, the display telegram 30 is transmitted to the field device control terminal 23 of the signal machine. If it is the field device control terminal 23 of the signal machine, the field device control terminal 22 of the switch machine is transmitted. A display message 30 is transmitted.

  In the field device control terminal, the control output is controlled according to the field device control logic set in advance based on the display telegram 30 received by the field device control logic in the reduced mode.

  FIG. 4 is a diagram showing an interlocking chart as an example of the control logic. The interlocking chart in the control logic of the normal control mode is held in the interlocking logic unit 10 and controls the operation of each field device according to the interlocking chart based on information from each field device.

  On the other hand, in the control logic of the reduced mode, the necessary interlocking chart is held in each field device control terminal, and the field device control terminal controls the operation of the field device based on the field device information from other field device control terminals. Control.

  In the case of a station with a track shape as shown in FIG. 4, in order to output the progress indication to the traffic signal on the route 1RA, the track circuits 2T and 3AT are not present, and the switch 2 is locked in place. It is also necessary to acquire track information of the track circuit 1T for the approach lock.

  Therefore, the traffic signal on the route 1RA acquires the display information of the track circuits 1T, 2T, 3AT and the display information of the switch 2, and controls the signal display.

  FIGS. 5-7 is the figure which showed the switching condition to the degeneration mode of each field device control terminal of a track circuit, a switching machine, and a traffic light, and the operation | movement after degeneration mode transition. Hereinafter, the mode transition of each field device control terminal will be described in each figure.

  FIG. 5 is a diagram illustrating a condition for switching the track circuit field device control terminal 21 to the degeneration mode. The track circuit field device control terminal 21 in the steady control mode 101 transmits the track circuit information 102 to the interlocking logic unit 10. If the communication with the interlocking logic unit is interrupted 103 (Yes), the communication transition is made into a degeneration mode 104 by using the communication disconnection as a trigger, and the track circuit information is transmitted 105 to the related on-site equipment (switching machine, traffic light).

  Here, the transmission of the track circuit information to the related field device may be unicast transmission that is transmitted to each field device on a one-to-one basis, but the multicast that is transmitted to all the field devices in the group to be transmitted. Transmission or broadcast transmission that transmits to all devices connected to the network may be used. If the communication with the interlocking logic unit is not interrupted 103 (No), the normal control mode is continued 101.

  FIG. 6 is a diagram illustrating a condition for switching to the degeneration mode of the field device control terminal 22 of the switch. The on-site equipment control terminal 22 of the switch that is in the steady control mode 201 transmits 202 the switch state information to the interlocking logic unit. When the communication with the interlocking logic unit is interrupted 203 (Yes), the switch is locked 204 by using the communication interruption as a trigger.

  If the track circuit information is received 205 (Yes) from the field device control terminal 21 of the track circuit after locking the switch, the transition 206 is made to the degenerate mode 206. When the mode is changed to the degeneration mode, transmission state information is transmitted 207 to the related traffic signal. In the degeneration mode, the switch is controlled 208 in accordance with the locking conditions of the interlocking chart. When the communication with the interlocking logic unit is not interrupted 203 (No), or when the track circuit information is not received 205 (No), the normal control mode is continued 201.

  FIG. 7 is a diagram showing a condition for switching the traffic signal field device control terminal 23 to the degeneration mode. The on-site equipment control terminal 23 of the traffic light that is in the steady control mode 301 transmits 302 the traffic light status information to the logic unit.

  When the communication with the interlocking logic unit is interrupted 303 (Yes), the signal is temporarily changed to the stop display 304 by using the communication disconnection as a trigger. After the stop indication is output, when the track circuit information is received from the field device control terminal 21 of the track circuit 305 (Yes), the transition 306 is made to the degeneration mode.

  When the mode is changed to the degenerate mode, the traffic signal state information is transmitted 307 to the related switch. In the degeneration mode, the signal display is controlled 308 in accordance with the signal control conditions of the interlocking chart. When the communication with the interlocking logic unit is not interrupted 303 (No), or when the track circuit information is not received 305 (No), the normal control mode is continued 301.

  FIGS. 8 to 10 are diagrams showing a return condition from the degeneration mode to the normal control mode and the operation after transition to the normal control mode of each field device control terminal of the track circuit, the switch, and the traffic light. Hereinafter, the mode transition of each field device control terminal will be described in each figure.

  FIG. 8 is a diagram showing conditions for returning from the degeneration mode to the normal control mode of the field device control terminal 21 of the track circuit. In the degeneration mode 111, the track circuit information is transmitted 112 to the related equipment. After the communication with the interlocking logic unit is restored 113 (Yes), the normal control mode return is received from the related traffic signal 114 (Yes), the normal control mode is restored 115, and the transmission of the track circuit information to the related field device is stopped. 116. When the communication with the interlocking logic unit does not return 113 (No), or when the communication control mode return is not received 114 (No) from the related signal device, the degeneration mode is continued 211.

  FIG. 9 is a diagram showing conditions for returning from the degenerate mode to the normal control mode of the field device control terminal 22 of the switching machine. In the degeneration mode 211, machine status information is transmitted 212 to the related traffic signal. After 213 (Yes) when communication with the interlocking logic unit is restored, 214 (Yes) for receiving the normal control mode return from the related signal device, 215 is returned to the normal control mode, and the switch state information is transmitted to the related signal device. Is stopped 216. After that, follow the instructions of the interlocking logic unit 217. If the communication with the interlocking logic unit does not return 213 (No), or if the communication control mode return is not received 214 from the related signal device (No), the degeneration mode is continued 211.

  FIG. 10 is a diagram showing conditions for returning from the degeneration mode to the normal control mode of the field device control terminal 23 of the traffic light. In the degeneration mode 311, the signal display is controlled 312 according to the signal control conditions of the interlocking chart, and the traffic signal state information is transmitted 313 to the related switch. After the communication with the interlocking logic unit is restored 314 (Yes), when the instruction of the interlocking logic unit is lower 315 (Yes) than the signal display, the control returns to the normal control mode 316 and the related field device is switched to the normal control mode. The return is notified 317, and the transmission of the traffic signal state information to the related switch is stopped 318.

  Thereafter, 319 is followed according to the instructions of the interlocking logic unit. When the communication with the interlocking logic unit does not return 314 (No), when the instruction of the interlocking logic unit is higher than the signal indication 315 (No), the degeneration mode is continued 311.

  FIG. 11 is a diagram showing a logic block configuration in the field device control terminal according to the second embodiment of the present invention. The track circuit field device control terminal 21 according to the first embodiment transmits the track circuit information not only to the interlocking logic unit 10 but also to the related field device control terminals 22 and 23 in the normal control mode control logic 21b. The on-site equipment control terminal may discard the track circuit information except in the degeneration mode. Thereby, it is not necessary to set the degeneration mode in the field device control terminal 21 of the track circuit, and the logic can be simplified.

  When the communication with the logic unit is interrupted, the on-site equipment control terminal 22 of the switch in Example 1 is locked in the state when the communication disconnection is detected, and is locked until the communication with the logic unit is restored. It may be continued.

  As a result, while the interlocking logic unit is stopped, it is impossible to switch the tipping machine. However, since the tipping machine does not operate, the degeneration mode is set in the field device control terminal 22 of the tipping machine. Therefore, the logic can be simplified only by the normal control mode control logic 22b.

  At this time, with the deletion of the degeneration mode, the switch state information is transmitted to the traffic signal associated with the interlocking logic unit, and the field device control terminal 23 of the signal device discards the switch state information except in the degeneration mode. It is good to do. Thereby, the on-site equipment control terminal 23 of the traffic light can switch over and obtain the machine state information in the degeneration mode.

  In addition, the track circuit information from the track circuit field device control terminal 21 is discarded. Thereby, it is possible to prevent the track circuit information from the field device control terminal 21 of the track circuit from affecting the normal control mode.

  The traffic signal field device control terminal 23 discards the display message (track circuit information, switch state information) transmitted from the track circuit and the switch device field device control terminals 21 and 22 in the normal control mode. It shall be discarded by the circuit 23f. Thereby, it is possible to prevent the display message of the track circuit in the second embodiment and the field device control terminals 21 and 22 of the turning machine from affecting the normal control mode.

  FIG. 12 is a diagram showing a logic block configuration in the field device control terminal according to the third embodiment of the present invention. In the second embodiment, the on-site equipment control terminal 22 of the switch is effective only for the lock and the approach lock by the control logic 22b 'for the lock and the approach lock regardless of the mode. It is also good.

  In the control mode, applying the lock based on the track circuit information from the field device control terminal 21 of the track circuit has a faster response than receiving the lock instruction from the interlocking logic unit. The approach lock logic is triggered by a change in signal display.

  Since the field device control terminal 23 of the traffic light does not transmit the signal state information in the normal control mode, the field device control terminal 22 of the switch does not receive the change of the signal display during the normal control. At the time of normal operation, the interlocking logic unit has a lock-and-lock logic, transmits a control message to the switch machine, and the field device control terminal 22 of the switch machine only performs control output accordingly. Control is not affected even in the normal control mode of the on-site equipment control terminal 22 of the machine.

  FIG. 13 is a diagram illustrating a logic block configuration in the field device control terminal 22 of the switch according to the fourth embodiment. In the field device control logic 22c in the degeneration mode, the station passage route configuration logic 22g is added. In the fourth embodiment, the track circuit field device control terminal 21 may be any of the track circuit field device control terminals 21 in the first to third embodiments. Also, the traffic signal field device control terminal 23 may be any of the traffic signal field device control terminals 23 in the first to third embodiments.

  FIG. 14 is a diagram illustrating the operation in the degeneration mode of the field device control terminal 22 of the switch according to the fourth embodiment. In the degeneration mode, first, the tipping machine state information is acquired 401, and it is confirmed 402 whether the direction of the tipping machine is the set station passing route direction. When the turning machine direction is not the station passing direction 402 (No), it is confirmed 403 whether or not the turning machine is locked. If the switch is not locked 403 (No), switch the switch in the direction of the station passing path 404 and follow the lock conditions in the interlocking chart based on the status information of other field device control devices. The control of the switch is performed 405. In the case of 402 (Yes) when the direction of the switch is the station passing direction or 403 (Yes) where the switch is locked, the conversion to the station passing direction is not carried out, and there is a continuous increase. The switch is controlled 405 according to the locking conditions in the chart. After the switch is controlled, the switch state is transmitted to the related traffic signal, the flow returns to the switch state information acquisition 401, and the same processing is continued.

  As a result, a station passing route can be configured regardless of the direction of turning over at the time of the degeneration mode transition, and a train passing through the station can be operated.

  FIG. 15 is a diagram showing the configuration of the signal security system according to the fifth embodiment of the present invention, and shows a state when the interlocking logic unit is stopped. FIG. 16 shows a state where the interlocking logic unit is operating normally in the signal security system of FIG.

  In the fifth embodiment, when the interlocking logic unit 10 is operating normally, route information 50 for several hours is transmitted to the field device control terminals 22 and 23 of the switch and the traffic light. When the interlocking logic unit 10 is stopped, the field device control terminals 22 and 23 detect the stop, and the simple route control is realized only by the field device control terminal without the interlocking logic unit as the degeneration mode.

  FIG. 17 is a diagram showing a logical block structure in the field device control terminals 22 and 23 of the switch or the traffic light in the fifth embodiment. In the fifth embodiment, the track circuit field device control terminal 21 may be any of the track circuit field device control terminals 21 in the first to third embodiments.

  The logical block structure will be described in the field device control terminal 22 of the switch machine shown in FIG. The arithmetic processing unit (CPU) receives the control telegram 40 from the interlocking logic unit 10, determines the stoppage of the interlocking logic unit 10, and switches the on-site equipment control logic, and the interlocking logic unit stop determination unit and the logic switching unit 22 a. In addition, there are field device control logic 22b in the normal control mode and field device control logic 22c ′ in the degenerate mode including the train passage detection logic 22i. The arithmetic processing unit (CPU) includes a route information receiving unit 22g for receiving the route information 50 from the interlocking logic unit 10 and a route information storage unit 22h for storing the route information 50, and the route information storage unit 22h. The route information 50 stored in is used in the on-site equipment control logic 22c ′ in the degeneration mode including the train passage detection logic 22i.

  The same applies to the field device control terminal 23 of the traffic light shown in FIG.

  FIG. 18 shows an example of route information 50 received and stored by the field device control terminals 22 and 23 of the switch or the traffic light. The course corresponding to the order of the passing train is marked. As long as the order can be discriminated, it is also possible to have only the course written in one column.

  19 and 20 show how the control logic 22c ′ or 23c ′ of the degeneration mode of the field equipment control terminal 22 or 23 of the switch and the traffic light uses the route information 50 to perform a conversion process or a signal display process. FIG. Hereinafter, processing contents will be described in each figure.

  FIG. 19 is a diagram showing a conversion process using the route information 50 of the field device control terminal 22 of the switch. The degeneration mode control logic 22c ′ first acquires 501 course information 50. The next course direction is confirmed 502 in the obtained course information 50. After confirming the next course direction, the turning machine direction is confirmed 503, and it is determined 504 whether the turning machine direction matches the next course direction.

  When the turning machine direction does not coincide with the next course direction (No), it is determined 505 whether the turning machine is locked. If it is locked (Yes), the determination 505 is repeated until the lock is released. When the lock of the switch is released (No), the switch is changed 506 to the next course. When the conversion is completed, it is determined 507 whether the train has passed by the train passage detection logic 22i.

  If it is determined in the determination 504 that the direction of the tipping machine coincides with the next course direction (Yes), it is determined whether or not the train has passed without performing the conversion process (steps 505 and 506 are skipped).

  If the train does not pass (No), the determination 507 is repeated until the train passes. If the train has passed (Yes), the current route information is discarded and the next route information is selected 508. After the next course information is selected, the next course direction is confirmed again 502 and the same process is continued.

  FIG. 20 is a diagram showing a presenting process using the route information 50 of the field device control terminal 23 of the traffic light. The degeneration mode control logic 23c ′ first acquires 601 the course information 50. The next course direction is confirmed 602 in the obtained course information 50. After confirming the next course direction, it is determined 603 whether the course is open from the display information of the related field device terminal.

  If the route is not opened (No), a stop display is displayed 604, and the determination 603 is repeated until the route is opened. When the route is opened (Yes), the progress display is displayed 605, and the train passage detection logic 23i determines 606 whether the train has passed. If the train does not pass (No), the determination 606 is repeated until the train passes. If the train has passed (Yes), the current route information is discarded and the next route information is selected 607. After the next route information is selected, the next route direction is confirmed again 602, and the same processing is continued.

  As a result, even when the interlocking logic unit is stopped, the normal operation can be continued for several hours. The route information to be stored may be not only several hours but also one day worth of route information. At this time, it is possible to carry out the operation according to the normal schedule with only the field device control device. In the event of a disturbance in the diagram, it is also possible to carry out driving with a new diagram by receiving new route information from the interlocking logic unit or by receiving route information directly from the operation management device by wired transmission or wireless transmission It is.

  In the course change, the route information 50 is stored only in the field device control terminal 22 of the turning machine, without storing the route information 50 in both the turning machine and the field device control terminals 22 and 23 of the traffic light. The train passage detection logic 22i may be used to determine the passage of the train and change the course. At this time, the on-site equipment control terminal 21 of the track circuit may be any of the on-site equipment control terminal 21 of the track circuit in the first to third embodiments. Also, the traffic signal field device control terminal 23 may be any of the traffic signal field device control terminals 23 in the first to third embodiments.

  Thereby, in the traffic signal field device control terminal 23, it is not necessary to provide the route information reception unit 23g, the route information storage unit 23h, and the train passage detection logic 23i in the degeneration mode control logic. And the logic can be simplified. Also, by limiting the stored route information only to the turning machine, when the route information stored in the field machine control terminal of the turning machine and the traffic light is different, the courses to be configured do not match, It can be avoided that the display of the traffic light remains the stop display.

  FIG. 21 is a diagram showing a logic block configuration in the field device control terminal according to the seventh embodiment of the present invention. In the field device control terminal 23 of the traffic light, a conversion instruction logic 23j is newly provided in the degeneration mode control logic 23c ′, and a control telegram 41 which is a conversion instruction to the field device control terminal 22 of the switch device in the degeneration mode. Can be output. In the field machine control terminal 22 of the switching machine, the route information receiving unit 22g, the route information storage unit 22h, and the train passage detection logic 22i are reduced, and the degeneration mode control logic 23c '' is changed from the field device control terminal 23 of the traffic light. The conversion is performed by the control message 41. In the seventh embodiment, the track circuit field device control terminal 21 may be any of the track circuit field device control terminals 21 in the first to third embodiments.

  Thereby, even in a course where a plurality of turning machines are linked, it is possible to avoid a situation in which each turning machine makes a contradictory change and a course cannot be configured.

DESCRIPTION OF SYMBOLS 10 Interlocking logic part 20 On-site equipment control terminal 20a Interlocking logic part stop determination part and logic switching part 20b Normal control mode control logic 20c Degeneration mode control logic 20d Control input / output part 21 On-site equipment control terminal 21b of track circuit Normal control mode control logic 21d Control input / output unit
21e Data input / output unit 22 Field switch control terminal 22b of normal switch mode Normal control mode control logic 22b 'Check lock and approach lock control logic 22d Control input / output unit 22e Data input / output unit 22g Passing path configuration logic 22h Route information receiving unit 22i Route information storage unit 22j Train passing detection logic 23 Traffic signal field device control terminal 23a Interlocking logic unit stop determination unit and logic switching unit 23b Normal control mode control logic 23c Degeneration mode control logic 23d Control input / output unit 23f Display message discard circuit 23h Route information reception unit 23i Route information storage unit 23j Train passage detection logic 23k Conversion instruction logic 30 State message (state information)
40 Control message (control information)
41 Control message (control information) output from the field device control terminal 23 of the traffic light
50 Course information 101-607 Processing blocks in the flowchart

Claims (4)

One or more field devices as track circuits, turning machines, traffic lights, a field device control terminal provided corresponding to each field device and controlling the field device, and status information from each field device Based on the link logic unit for controlling the corresponding field device control terminal, and a network for connecting the link logic unit and the field device control terminal, and from the link logic unit to each of the field device control terminals via the network. Is a signal security system in which the control information is transmitted from each of the field device control terminals to the interlocking logic unit and the status information is transmitted.
In the course control of trains, it has a transmission path and function for transmitting and receiving state information between the field device control terminals that constitute the course,
A site with on-site equipment control logic that receives state information necessary for route control from the on-site equipment control terminal when information from the interlocking logic unit cannot be received and maintains the course control of the train based on the state information In a signal security system composed of equipment control terminals and realizing route control by the field equipment control terminals ,
It has field device control logic 1 when the interlocking logic unit is operating, and field device control logic 2 that maintains the course control while the interlocking logic unit is stopped,
It has a function to detect that communication from the above interlocking logic unit is interrupted and information cannot be received,
When it detects that the information from the interlocking logic unit cannot be received, it is configured by a field device control terminal having a function of switching the field device control logic from the field device control logic 1 to the field device control logic 2,
The field device control terminal of the track circuit that detects that the information from the interlocking logic unit cannot be received switches the field device control logic to the field device control logic 2, and the state changes to the field device control terminal of the switch and the traffic light. Send information,
In the case of a field machine control terminal of a switch and a traffic light, the signal security system is characterized in that the field machine control logic is switched on condition that state information is received from the field machine control terminal of the track circuit . The signal security system according to claim 1,
Rolling field controller of iron machines, the signaling system is characterized that you configure the route can pass through the station, which is predetermined by the wayside equipment control logic. In the signal security system according to claim 1 or 2,
The field device control terminal has a function of receiving and storing route information from the interlocking logic unit and having a function of detecting passage of a train when the information from the interlocking logic unit cannot be received, and the route information signaling system, characterized that you control the point lock device or traffic in accordance with the original train pass the. The signal security system according to claim 3,
The field device control terminal of the traffic light has the logic to create a change instruction for the switch in the field device control logic 2 described above, and has the function of transmitting to the field device control terminal of the switch In the field device control logic 2 for maintaining the route control while the interlocking logic unit is stopped, the field device control terminal of the switch is switched according to the conversion instruction transmitted by the field device control terminal of the traffic light. A signal security system characterized by controlling .

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