CN-119872657-B - Degraded train control method, device and medium based on train safety positioning

CN119872657BCN 119872657 BCN119872657 BCN 119872657BCN-119872657-B

Abstract

The invention relates to a degraded train control method, equipment and medium based on train safety positioning, which enables a TACS system to open an allowed signal for a degraded train under the condition of lacking secondary detection equipment, according to the control method, safety positioning of the train is calculated in real time by the vehicle-mounted controller CC, safety assurance that the train is the first train upstream of the annunciator is calculated by combining the safety positioning states of other trains, and the target annunciator is controlled to be lighted based on a calculation result. Compared with the prior art, the invention has the advantages that the whole process is finished automatically by the system without manual intervention, the system availability is high, and the like.

Inventors

GAO HAO
XU HAIGUI
LING XIAOQUE
LU YIRAN
FENG WEI
WANG LEI
CHEN SIYU
ZHOU XINYUE

Assignees

卡斯柯信号有限公司

Dates

Publication Date: 20260512
Application Date: 20241225

Claims (8)

1. The method is characterized in that the control method calculates the safety assurance that the train is the first train upstream of the annunciator according to the train safety positioning calculated in real time by a vehicle-mounted controller CC and the safety positioning state of other trains, and controls the lighting of a target annunciator based on a calculation result; the method specifically comprises the following steps: Step S1, a vehicle-mounted controller CC in a degraded train calculates continuous safe positioning for the train, applies for releasing line resources to a trackside resource manager WRC, issues a trackside signal machine lighting instruction, and a driver controls the safe running of the train according to the trackside signal machine display; step S2, after a driver drives a train to enter a near section of a target annunciator, a vehicle-mounted controller CC applies a track resource manager WRC for line resources from the target annunciator to the next equidirectional annunciator; Step S3, the vehicle-mounted controller CC calculates the safety guarantee that the train is the first train upstream of the target signal machine based on the safety positioning state of the train and the safety positioning information of other trains, and calculates the safety guarantee that no other trains occupy between the target signal machine and the next signal machine in the same direction; step S4, the vehicle-mounted controller CC applies for the allowable light of the open target signal machine to the trackside resource manager WRC according to the calculation result of the step S3; S5, the trackside resource manager WRC lights the permission light of the target signal machine according to the permission signal opening request of the vehicle-mounted controller CC; S6, allowing a driver to visually allow the light to drive the train through the current annunciator; In step S4, the vehicle-mounted controller CC obtains all required line resources from the trackside resource manager WRC, and applies for the allowable light of the open target annunciator to the trackside resource manager WRC in combination with the safety guarantee that no other train occupies the annunciator protection zone and the safety guarantee that the train is the first train upstream of the annunciator.
2. The degraded train control method based on train safety positioning according to claim 1, wherein in the step S1, the train is converted into RM mode driving by cutting ATP protection due to reasons in the running process, and becomes a degraded train.
3. The degraded train control method based on train safety positioning according to claim 1, wherein in step S2, the on-board controller CC applies for the line resource according to the running task issued by the train automatic monitoring system ATS.
4. The degraded train control method based on the safe positioning of the train according to claim 1, wherein in the step S3, the vehicle-mounted controller CC communicates with other train-established vehicles of the whole train to obtain the safe positioning information of the other trains.
5. The degraded train control method based on the safe positioning of the train according to claim 1, wherein in the step S5, the permission light of the target signal is lighted by driving the target controller OC.
6. The method for controlling a degraded train based on safe positioning of a train according to claim 1, further comprising step S7, when the train passes through the annunciator, the vehicle-mounted controller CC does not calculate the safety guarantee of the first train upstream of the annunciator for the train any more, and the vehicle-mounted controller CC applies for the trackside resource manager WRC to turn off the allowable light of the current annunciator, and the trackside resource manager WRC changes the forbidden light of the current annunciator.
7. An electronic device comprising a memory and a processor, the memory having stored thereon a computer program, wherein the processor, when executing the program, implements the method of any of claims 1-6.
8. A computer readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the method according to any one of claims 1-6.

Description

Degraded train control method, device and medium based on train safety positioning Technical Field The invention relates to a rail transit signal system, in particular to a degraded train control method, device and medium based on train safety positioning. Background The train autonomous operation system (TACS system) based on train communication takes the on-board equipment as a control core and autonomously calculates the movement authorization by the train, after the TACS train is degraded, a driver needs to control the train to operate according to the display of the trackside signal machine, and after the trackside signal machine opens an allowable signal, the TACS system cannot safely detect the degraded train passing signal machine and cannot timely close the allowable signal opened by the degraded train passing signal machine due to the lack of secondary detection equipment such as a metering shaft and the like, and the allowable signal can be misread by another degraded train driver following at the rear, so that the safety problem of signal display upgrading is caused. The retrieved China patent publication No. CN118560554A discloses a method for allowing signals to be opened in time limit of a TACS system based on beacon triggering. In the method, after a beacon is read at a position at the upstream of a signal machine by a train backup positioning system BLS, a trackside train controller WTC is triggered to apply for an allowable signal with a certain limit (such as 15 s) for a trackside resource manager WRC by a train. After the time limit is finished, the signal machine changes the point prohibiting signal. The method effectively avoids the safety problem that the TACS system cannot detect that the degraded vehicle passes through the annunciator and can not turn off the light in time due to the lack of the trackside secondary detection equipment, so that the display of the following tracking train is promoted. However, the signal in this method can only be kept for a limited period of time (e.g., 15 s) after the signal is turned on, the driver may not be able to drive the train through the signal, the signal is turned off, and the driver is forced to stop the vehicle in an emergency, which causes usability problems. Meanwhile, chinese patent publication No. CN118665555A discloses a method for opening a time-limited permission signal of a manually-confirmed TACS system, and when a driver fails to get to drive a train to pass through a traffic signal, the permission signal is lightened again for the degraded train by means of manual confirmation. In the method, the open time of the annunciator is still limited, manual intervention is needed, and the availability is poor. Therefore, there is a need for an enabling signal opening method that is highly automated, can maintain a lighting enabling signal for a degraded train, and can avoid causing display upgrades to a following train. Disclosure of Invention The invention aims to overcome the defects of the prior art and provide a degraded train control method, device and medium based on train safety positioning. The aim of the invention can be achieved by the following technical scheme: According to the first aspect of the invention, a degraded train control method based on train safety positioning is provided, the method enables a TACS system to open an allowed signal for a degraded train under the condition of lacking secondary detection equipment, the control method calculates the safety assurance that the train is the first train upstream of a traffic signal according to train safety positioning calculated by a vehicle-mounted controller CC in real time and combining the safety positioning states of other trains, and the target traffic signal is controlled to be lighted based on a calculation result. As a preferred technical solution, the method specifically comprises the following steps: Step S1, a vehicle-mounted controller CC in a degraded train calculates continuous safe positioning for the train, applies for releasing line resources to a trackside resource manager WRC, issues a trackside signal machine lighting instruction, and a driver controls the safe running of the train according to the trackside signal machine display; step S2, after a driver drives a train to enter a near section of a target annunciator, a vehicle-mounted controller CC applies a track resource manager WRC for line resources from the target annunciator to the next equidirectional annunciator; Step S3, the vehicle-mounted controller CC calculates the safety guarantee that the train is the first train upstream of the target signal machine based on the safety positioning state of the train and the safety positioning information of other trains, and calculates the safety guarantee that no other trains occupy between the target signal machine and the next signal machine in the same direction; step S4, the vehicle-mounted controller CC applies for the allowable light of th