TACS lower trackside equipment vehicle control method

Abstract

The invention discloses a train control method for trackside equipment under a TACS system, and relates to the technical field of rail traffic control, and the method comprises the steps that when only a single trackside train controller exists on a trackside under the TACS system to control a train, the trackside train controller silences a train which is not necessary to control the train according to necessary conditions of train control, and after actual operation requirements exist, the train control is started; the trackside train controller activates the silent train; and the trackside train controller carries out necessary train control number over-limit alarm on the necessary train control trains at the same time. The train control necessary condition comprises a train execution task and a conflict between the driving resource ranges of the two trains. The number of trains controlled by the trackside train controller at the same time is reduced, and the stability and usability of the system are improved. Necessary train number over-limit alarm is output, and train conditions can be confirmed manually conveniently. According to the invention, the communication between the silent vehicle and the trackside resource controller and the vehicle-mounted controller is cut off, and the channel communication redundancy of other systems is increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of rail transit control technology, and more particularly to a method for controlling trains by trackside equipment under a TACS system. BACKGROUND

[0002] After more than ten years of rapid development, domestic urban rail transit has gradually entered the network operation stage. The continuous increase in passenger flow and the increasing operation intensity have put forward higher requirements for train operation efficiency, system reliability and operation flexibility. Under this background, how to achieve higher transportation capacity, lower operation cost and better service quality under the condition of limited line, vehicle and equipment resources has become a key issue that needs to be solved in the industry.

[0003] Train autonomous operation system (TACS) as a new generation of train operation control mode, through the reconstruction of system architecture, strengthening of train-to-train communication and autonomous resource management, significantly improves the intelligent and collaborative level of the system. It simplifies the traditional trackside equipment layout, refines the train autonomous management operation resources, and builds a unified safety computing platform to realize safe, efficient and flexible train operation control.

[0004] The trackside train controller (WTC) as the backup control system of the TACS, only one device is set at the trackside to control the operation of the train on the whole line. According to the complexity of different lines, with the increase of the number of on-board and trackside equipment, there is a great challenge to the performance of WTC equipment. SUMMARY

[0005] In order to overcome the defects in the prior art, the present application discloses a method for controlling trains by trackside equipment under a TACS system. Based on a single trackside train controller, the necessary number of train control is set, the non-essential train control is silenced (the train control logic is no longer calculated, and the communication with the external equipment is cut off), and the alarm is set when the number of activated trains exceeds the limit. When there is an actual operation demand, the silenced train is activated, and the stability and availability of the WTC system are improved.

[0006] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows: A method for controlling trains by trackside equipment under a TACS system, comprising: when there is only a single trackside train controller for train control under the TACS system, according to the necessary conditions for train control, the trackside train controller silences the non-essential train control train, and when there is an actual operation demand, the trackside train controller activates the silenced train; the trackside train controller simultaneously executes the necessary train control number limit alarm for the necessary train control train. Preferably, the necessary conditions for train control include train task execution and conflict of two train operation resource ranges; When the current train has no task to execute and there is no conflict with the operation resource range of the remaining trains, the current train is silenced. The current train is performing a task, or there is no task but there is a conflict with the rest of the train operation resource range, the current train is a necessary control train and performs a necessary control quantity overrun alarm.

[0007] Preferably, the silent non-essential control train comprises: a silent non-essential control train, which no longer calculates the control logic of the train, and cuts off the communication between the train and the external device.

[0008] Preferably, the necessary control quantity overrun alarm for the necessary control train comprises: determine whether the necessary control quantity of the wayside train controller is greater than or equal to the necessary control quantity threshold value; If yes, output an alarm information, a necessary control quantity overrun, and downgrade part of the train; If no, continue to control the train to interact with the external device in real time.

[0009] Preferably, the control method comprises the following steps: Step S1, the TACS system controls the wayside train controller, and sets the necessary control quantity threshold value of the wayside train controller; Step S2, determine whether the current train is performing a task; if yes, go to step S4; if no, go to step S3 or step S6; Step S3, determine whether the current train and the rest of the train operation resource range exist a conflict; if yes, go to step S4; if no, go to step S6; Step S4, determine whether the necessary control quantity is greater than or equal to the necessary control quantity threshold value; if yes, go to step S5; if no, go to step S7; Step S5, output an alarm information, a necessary control quantity overrun, and downgrade part of the train, and return to step S2 for re-determination; Step S6, silence the train, no longer calculate the control logic of the train, and cut off the communication between the train and the external device, and return to step S2 for re-determination; Step S7, continue to control the train to interact with the external device in real time.

[0010] Preferably, the external device comprises a wayside resource controller and a vehicle-mounted controller.

[0011] Preferably, the control method comprises: activate the train to perform a task, and silence the train after the task is completed; activate the train when there is a conflict between the operation resource ranges of two trains, and silence the train after the conflict is resolved; necessary control quantity overrun, output an alarm.

[0012] Preferably, the executing task activates the train, and the train is silenced after the task is completed, and specifically includes: The train 1 controlled by the trackside train controller is parked at the platform A, and the necessary train number threshold is N; The train 1 is parked at the platform A, and is silent and cut off the communication with the external device because no task is executed and no conflict with the train operation resource of the rest of the trains; The task of the platform A to the platform B is sent to the train 1; It is judged that the necessary train number of the current trackside train controller is 0, which is less than the necessary train number threshold; The train 1 is activated as the necessary train, and the communication with the external device is established; The train 1 arrives at the platform B, and the task is completed; it is judged that the train 1 has no conflict with the train operation resource of the rest of the trains, and the train is silenced again, and the communication with the external device is cut off.

[0013] Preferably, the two train operation resource range conflicts activate the train, and the train is silenced after the conflict is solved, and specifically includes: The train 1 controlled by the trackside train controller is parked at the platform B, the train 2 controlled by the on-board train controller is parked at the platform A, the necessary train number threshold is N, and the train 1 and the train 2 are located on the same track; The train 1 controlled by the trackside train controller is parked at the platform B, and is silent and cut off the communication with the external device because no task is executed and no conflict with the train operation resource of the train 2; The task of the platform A to the platform B is sent to the train 2; It is judged that the train 1 has a conflict with the train operation resource range of the train 2; It is judged that the necessary train number of the current trackside train controller is 0, which is less than the necessary train number threshold; The train 1 is activated as the necessary train, and the communication with the external device is established; The task of the platform B to the platform C is sent to the train 1; The train 1 arrives at the platform C, and the task is completed; it is judged that the train 1 has no conflict with the train operation resource of the train 2, and the train is silenced again, and the communication with the external device is cut off.

[0014] Preferably, the necessary train number exceeds the limit, and an alarm is output, and specifically includes: The train 1 controlled by the trackside train controller is parked at the platform B, the train 2 controlled by the on-board train controller is parked at the platform A, the train 3 controlled by the trackside train controller is parked at the platform D, the train 4 controlled by the trackside train controller is parked at the platform H, the train 5 controlled by the trackside train controller is parked at the platform L, the train 6 controlled by the on-board train controller is parked at the platform K, and the necessary train number threshold is 3; wherein the train 1 and the train 2 are located on the track 1, the train 3 and the train 4 are located on the track 2 and the track 3 respectively, and the train 5 and the train 6 are located on the track 4; The train 1 of the trackside train controller stops at the platform B, and since no task is performed and no conflict with the train 2 occurs, the train 1 is silent and cut off the communication with the external device; The train 3 of the trackside train controller stops at the platform D, and since no task is performed and no conflict with the rest of the trains occurs, the train 3 is silent and cut off the communication with the external device; The train 4 of the trackside train controller stops at the platform H, and since no task is performed and no conflict with the rest of the trains occurs, the train 4 is silent and cut off the communication with the external device; The train 5 of the trackside train controller stops at the platform L, and since no task is performed and no conflict with the train 6 occurs, the train 5 is silent and cut off the communication with the external device; The train 2 is sent a task from the platform A to the platform B; It is judged that the train 1 and the train 2 conflict in the train resource range; It is judged that the necessary control number of the current trackside train controller is 0, which is less than the necessary control number threshold; The train 1 is activated as a necessary train, and the communication with the external device is established; The train 3 is sent a task from the platform D to the platform E; It is judged that the necessary control number of the current trackside train controller is 1, which is less than the necessary control number threshold; The train 3 is activated as a necessary train, and the communication with the external device is established; The train 4 is sent a task from the platform H to the platform I; It is judged that the necessary control number of the current trackside train controller is 2, which is less than the necessary control number threshold; The train 4 is activated as a necessary train, and the communication with the external device is established; The train 6 is sent a task from the platform K to the platform L; It is judged that the train 5 and the train 6 conflict in the train resource range; It is judged that the necessary control number of the current trackside train controller is 3, which is equal to the necessary control number threshold 3; the train 5 cannot be activated, and an alarm of the necessary train number exceeding the limit is output.

[0015] The beneficial effects of the present application are as follows: 1. The number of simultaneously controlled trains of the WTC system is reduced, and the system stability and availability are improved.

[0016] 2. An alarm of the necessary train number exceeding the limit is output, and the train condition is confirmed by manual confirmation; 3. The silent train is cut off from the communication with the trackside and on-board devices, and the channel communication redundancy of the rest of the system is increased. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The WTC system control method flowchart of the present application; Figure 2 The necessary vehicle condition for the present application-execution task schematic diagram; Figure 3 The necessary vehicle condition for the present application-two vehicle driving resource range conflict schematic diagram; Figure 4 The WTC system silent control vehicle cut-off and external device communication schematic diagram for the present application; wherein, CC is a vehicle-mounted controller, and WRC is a trackside resource controller; Figure 5 The execution task activates the train, and the task is completed to be silent schematic diagram for the present application; Figure 6 The two vehicle driving range conflict activates the train, and the conflict is solved to be silent schematic diagram for the present application; Figure 7 The necessary vehicle quantity is over limit, and an alarm is outputted schematic diagram for the present application Figure 1 ; Figure 8 The necessary vehicle quantity is over limit, and an alarm is outputted schematic diagram for the present application Figure 2 . DETAILED DESCRIPTION

[0018] The concept, specific structure and generated technical effects of the present application will be described clearly and completely in combination with the embodiments and the drawings, so as to fully understand the purpose, features and effects of the present application.

[0019] Embodiment 1 A trackside device control vehicle method under a TACS system, when there is only a single device controlling the vehicle at the trackside, according to the necessary control vehicle condition, the non-essential train is silenced, and the activated vehicle quantity over limit alarm is set, so as to improve the stability and availability of the WTC system control vehicle.

[0020] As shown in Figure 1 , the present application can be realized by the following technical solutions: Firstly, it is determined that the TACS system has been transferred to the WTC system control vehicle.

[0021] Step S1, setting the necessary control vehicle quantity.

[0022] Step S2, judging whether the current vehicle is executing a task, as shown in Figure 2 . If yes, go to step S4; if no, go to step S3 or step S6.

[0023] Step S3, judging whether the current vehicle and the remaining vehicles exist a driving range conflict, as shown in Figure 3 . If yes, go to step S4; if no, go to step S6; Step S4, judging whether the necessary train quantity is more than the set value. If yes, go to step S5; if no, go to step S7; Step S5, output alarm information, necessary vehicle quantity is over limit, part of trains need to be degraded. Return to step S2 to rejudge; Step S6, silence train, no longer calculate control train logic, and cut off communication with trackside and onboard devices, as shown in Figure 4 . Return to step S2 to rejudge; Step S7, continue to control train and interact information with trackside and onboard devices in real time.

[0024] The overall process includes setting necessary control train quantity, judging whether the current train should be silenced according to whether the current train is executing a task and whether there is a conflict with the driving range of the remaining trains, and alarming when the necessary train quantity is over limit.

[0025] Embodiment 2 This embodiment is to activate a train to execute a task, and to silence after the task is completed, as shown in Figure 5 , it is set that WTC train 1 is parked at platform A, and the necessary train control train quantity is 3.

[0026] Step 1, WTC train 1 is parked at platform A, and since it is not executing a task and does not have a conflict with the driving resources of the remaining trains, the train is silenced, and communication with the external onboard controller CC and the trackside resource controller WRC is cut off; Step 2, send train 1 a task from platform A to platform B; Step 3, judge that the total number of necessary side control trains of the current WTC system is 0, which does not exceed the necessary train control train quantity 3; Step 4, activate train 1 as a necessary train, and establish communication with the external onboard controller CC and the trackside resource controller WRC; Step 5, train 1 arrives at platform B and ends the task. Since there is no conflict with the driving resources of the remaining trains, the train is silenced again, and communication with the external onboard controller CC and the trackside resource controller WRC is cut off. Embodiment 3 This embodiment is to activate a train due to a conflict in the driving range of two trains, and to silence after the conflict is resolved, as shown in Figure 6 , it is set that WTC train 1 is parked at platform B, and CC train 2 is parked at platform A, and the necessary train control train quantity is 3.

[0027] Step 1, WTC train 1 is parked at platform B, and since it is not executing a task and does not have a conflict with the driving resources of train 2, train 1 is silenced, and communication with the external onboard controller CC and the trackside resource controller WRC is cut off; Step 2, send train 2 a task from platform A to platform B; Step 3, judge that there is a conflict in the driving resource range of train 1 and train 2; Step 4, judge that the total number of necessary side control trains of the current WTC system is 0, which does not exceed the necessary train control train quantity 3; Step 5, activate car 1 as necessary car, establish communication with external car controller CC and wayside resource controller WRC; Step 6, send car 1 a task from platform B to platform C; Step 7, car 1 arrives at platform C and ends the task. Determine that there is no conflict with car 2's driving resources, re-silence the car, and cut off communication with external car controller CC and wayside resource controller WRC.

[0028] Example 4 This example is that the number of necessary cars exceeds the limit, and an alarm is output, as shown in Figure 7 and Figure 8 As shown in the table, set WTC car 1 to stop at platform B, CC car 2 to stop at platform A, WTC car 3 to stop at platform D, WTC car 4 to stop at platform H, WTC car 5 to stop at platform L, and CC car 6 to stop at platform K. The number of necessary car control cars is 3.

[0029] Step 1, WTC car 1 stops at platform B. Since no task is being performed and there is no conflict with car 2's driving resources, car 1 is silenced, and communication with external car controller CC and wayside resource controller WRC is cut off; Step 2, WTC car 3 stops at platform D. Since no task is being performed and there is no conflict with the driving resources of the remaining cars, car 3 is silenced, and communication with external car controller CC and wayside resource controller WRC is cut off; Step 3, WTC car 4 stops at platform H. Since no task is being performed and there is no conflict with the driving resources of the remaining cars, car 4 is silenced, and communication with external car controller CC and wayside resource controller WRC is cut off; Step 4, WTC car 5 stops at platform L. Since no task is being performed and there is no conflict with car 6's driving resources, car 5 is silenced, and communication with external car controller CC and wayside resource controller WRC is cut off; Step 5, send car 2 a task from platform A to platform B; Step 6, determine that there is a conflict between car 1 and car 2's driving resource ranges; Step 7, determine that the current total number of WTC system necessary side control cars is 0, which does not exceed the necessary car control car number 3; Step 8, activate car 1 as a necessary car, establish communication with external car controller CC and wayside resource controller WRC; Step 9, send car 3 a task from platform D to platform E; Step 10, determine that the current total number of WTC system necessary side control cars is 1, which does not exceed the necessary car control car number 3; Step 11, activate car 3 as a necessary car, establish communication with external car controller CC and wayside resource controller WRC; Step 12, send the task of platform H to platform I to vehicle 4; Step 13, judge that the total number of necessary side-controlled vehicles in the current WTC system is 2, which does not exceed the necessary vehicle control number 3; Step 14, activate vehicle 4 as a necessary vehicle, and establish communication with the external vehicle controller CC and the trackside resource controller WRC; Step 15, send the task of platform K to platform L to vehicle 6; Step 16, judge that the driving resource range of vehicle 5 and vehicle 6 produces a conflict; Step 17, judge that the total number of necessary side-controlled vehicles in the current WTC system is 3, which exceeds the necessary vehicle control number 3; vehicle 5 cannot be activated, and a necessary vehicle number over-limit alarm is output.

[0030] The present application proposes a vehicle control method for trackside equipment under a TACS system: when there is only a single device controlling vehicles on the trackside, according to the necessary conditions for vehicle control, the non-necessary trains are silenced, and an activation vehicle number over-limit alarm is set, thereby improving the stability and availability of the WTC system vehicle control.

[0031] The above describes the embodiments of the present application, but the present application is not limited to the above-described embodiments, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the present application, and these equivalent modifications or replacements are all included in the scope defined by the claims of the present application.

Claims

1. A method for controlling trains using trackside equipment under a TACS system, characterized in that, include: When only a single trackside train controller is controlling a train under the TACS system, the trackside train controller will silence non-essential trains based on the necessary conditions for train control. When there is an actual operational need, the trackside train controller will activate the silenced trains. At the same time, the trackside train controller will issue an alarm for the excessive number of trains that need to be controlled.

2. The method for controlling a train using trackside equipment under a TACS system as described in claim 1, characterized in that, The necessary conditions for train control include the train performing its mission and the conflict between the two trains' operational resources. When the current train is not performing a task and there is no conflict with the operating resources of other trains, the current train is silenced; When the current train is performing a task, or is not performing a task but there is a conflict with the operating resources of other trains, the current train is a necessary control train and an alarm for exceeding the necessary control quantity is triggered.

3. The method for controlling trains using trackside equipment under a TACS system as described in claim 1, characterized in that, The silent non-essential train control trains include: silent non-essential train control trains, which no longer calculate the train control logic and disconnect the train from external devices.

4. The method for controlling a train using trackside equipment under a TACS system as described in claim 1, characterized in that, The aforementioned alarm for exceeding the limit on the number of trains requiring necessary control includes: Determine whether the necessary number of trains to be controlled by the trackside train controller is greater than or equal to the necessary number of trains to be controlled threshold; If so, an alarm message will be output indicating that the number of necessary trains has exceeded the limit, and some trains will be downgraded. If not, the train will continuously interact with external devices in real time.

5. A method for controlling a train using trackside equipment under a TACS system as described in claim 1, characterized in that, The vehicle control method includes the following steps: Step S1: The TACS system switches to trackside train controller control and sets the necessary train control threshold for the trackside train controller. Step S2: Determine whether the current train is performing a task; if yes, proceed to step S4; if no, proceed to step S3 or step S6. Step S3: Determine whether there is a conflict between the current train and the operating resource range of other trains; if yes, proceed to step S4; if no, proceed to step S6. Step S4: Determine whether the number of vehicles that need to be controlled is greater than or equal to the threshold number of vehicles that need to be controlled; if yes, proceed to step S5; if no, proceed to step S7. Step S5: Output alarm information, the number of necessary cars exceeds the limit, downgrade some trains, and then return to step S2 for reassessment; Step S6: Silent train, stop calculating the train control logic, disconnect the train from external devices, and return to step S2 to re-evaluate. Step S7: Continuously control the train to interact with external devices in real time.

6. A method for controlling a train using trackside equipment under a TACS system as described in claim 1, characterized in that, The vehicle control method includes: Activate the train upon completing the mission; silence the train upon completion of the mission. The train is activated when there is a conflict in the driving resource range between the two trains; the train becomes silent after the conflict is resolved. An alarm is triggered if the number of vehicles requiring control exceeds the limit.

7. A method for controlling a train using trackside equipment under a TACS system as described in claim 6, characterized in that, The process of activating the train during task execution and silencing the train upon completion includes: Set the trackside train controller to stop car 1 at platform A, and set the threshold for the number of trains that need to be controlled to be N. Train 1 is stopped at platform A. Since it is not performing any tasks and does not conflict with the operation resources of other trains, Train 1 remains silent and cuts off communication with external equipment. Send a task from platform A to platform B to car 1; The current trackside train controller is determined to have a required number of trains to control, which is 0 and less than the required number of trains to control threshold. Activate vehicle 1 as a necessary vehicle and establish communication with external devices; Train 1 arrives at platform B, mission complete; it is determined that Train 1 has not conflicted with the operation resources of other trains, train 1 is silenced again, and communication with external equipment is cut off.

8. A method for controlling a train using trackside equipment under a TACS system as described in claim 6, characterized in that, The conflict between the two trains in terms of their driving resource range activates the train, and the train becomes silent after the conflict is resolved. Specifically, this includes: Set the trackside train controller's car 1 to stop at platform B, and the onboard controller's car 2 to stop at platform A. The threshold for the number of cars that need to be controlled is N. Car 1 and car 2 are located on the same track. Train 1, controlled by the trackside train controller, is parked at platform B. Since it is not performing any tasks and does not conflict with the train 2's operating resources, Train 1 remains silent and disconnects from external equipment. Send a task from platform A to platform B to car 2; It was determined that there was a conflict in the driving resource range between vehicle 1 and vehicle 2; The current trackside train controller is determined to have a required number of trains to control, which is 0 and less than the required number of trains to control threshold. Activate vehicle 1 as a necessary vehicle and establish communication with external devices; Send a task from platform B to platform C to car 1; Train 1 arrives at platform C, mission complete; it is determined that Train 1 does not conflict with Train 2's driving resources, so Train 1 is silenced again and communication with external devices is cut off.

9. A method for controlling a train using trackside equipment under a TACS system as described in claim 6, characterized in that, When the required number of controlled vehicles exceeds the limit, an alarm will be output, specifically including: The trackside train controller's car 1 is parked at platform B, the onboard controller's car 2 is parked at platform A, the trackside train controller's car 3 is parked at platform D, the trackside train controller's car 4 is parked at platform H, the trackside train controller's car 5 is parked at platform L, and the onboard controller's car 6 is parked at platform K. The threshold for the number of cars that need to be controlled is 3. Among them, car 1 and car 2 are located on track 1, car 3 and car 4 are located on track 2 and track 3 respectively, and car 5 and car 6 are located on track 4. Train 1, controlled by the trackside train controller, is parked at platform B. Since it is not performing any tasks and does not conflict with the train 2's operating resources, Train 1 remains silent and disconnects from external equipment. Train 3 of the trackside train controller is parked at platform D. Since it is not performing any tasks and is not in conflict with other train operation resources, train 3 is silent and disconnected from external equipment. Train 4 of the trackside train controller is parked at platform H. Since it is not performing any tasks and is not in conflict with other train operation resources, train 4 is silent and disconnected from external equipment. Train 5, controlled by the trackside train controller, is parked at platform L. Since it is not performing any tasks and does not conflict with the train 6's operating resources, train 5 remains silent and disconnects from external equipment. Send a task from platform A to platform B to car 2; It was determined that there was a conflict in the driving resource range between vehicle 1 and vehicle 2; The current trackside train controller is determined to have a required number of trains to control, which is 0 and less than the required number of trains to control threshold. Activate vehicle 1 as a necessary vehicle and establish communication with external devices; Send a task from platform D to platform E to car 3; The current trackside train controller is determined to have a required number of trains to control, which is less than the required number of trains to control threshold. Activate vehicle 3 as a necessary vehicle and establish communication with external devices; Send the task from platform H to platform I to car 4; The current required number of trains controlled by the trackside train controller is determined to be 2, which is less than the required number of trains controlled threshold. Activate vehicle 4 as a necessary vehicle and establish communication with external devices; Send a task from platform K to platform L to car 6; It was determined that there was a conflict in the driving resource range between vehicle 5 and vehicle 6; The system determines that the required number of trains to be controlled by the current trackside train controller is 3, which is equal to the required number of trains threshold 3; train 5 cannot be activated, and an alarm for exceeding the required number of trains is output.

10. A method for controlling a train using trackside equipment in a TACS system as described in any one of claims 3, 4, 5, 7, 8, and 9, characterized in that, The external equipment includes a trackside resource controller and an onboard controller.

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