CN-122009272-A - Signal system and control right switching method thereof

CN122009272ACN 122009272 ACN122009272 ACN 122009272ACN-122009272-A

Abstract

The invention provides a signal system and a control right switching method thereof, wherein the system comprises a first train control subsystem, a second train control subsystem and a fusion interface unit, the first train control subsystem comprises interlocking equipment, the second train control subsystem comprises a resource controller and an object controller, the fusion interface unit comprises a first interface for connecting the interlocking equipment and the resource controller, a second interface for connecting the interlocking equipment and the object controller and a third interface for connecting the resource controller and the object controller, the signal system is configured to take one subsystem as a main system and the other subsystem as a standby system, and can realize the monitoring and control of the standby system to the trackside equipment through the first interface and the second interface and the third interface when the main system needs to be switched, so as to finish the control right switching from the main system to the standby system. After the main system fault occurs, the system can be quickly switched to the standby system to continue operation, and the operation influence caused by the signal system fault is reduced.

Inventors

JIA QINGDONG
WEN BOWEI
HAN QI
ZHANG ZHENDONG
LI YANG
ZHANG RUIXUE
ZHANG NAN
ZHANG JINGLONG

Assignees

交控科技股份有限公司
交控信号科技(北京)有限公司

Dates

Publication Date: 20260512
Application Date: 20251225

Claims (10)

1. The signal system is characterized by comprising a first train control subsystem, a second train control subsystem and a fusion interface unit; the first train control subsystem includes an interlock; The second train control subsystem comprises a resource controller and an object controller; The fusion interface unit includes: The system comprises an interlocking device, a first interface, a second interface, a first interface and a second interface, wherein the interlocking device is connected with the resource controller and is used for transmitting a control right state and a switching instruction of the trackside device between the interlocking device and the resource controller; The second interface is connected with the interlocking device and the object controller and is used for the interlocking device to acquire the state of the trackside device through the object controller; A third interface, connected to the resource controller and the object controller, for the resource controller to control the trackside equipment through the object controller; The signal system is configured to take one subsystem as a main system and the other subsystem as a standby system, and can transfer the control right state through the first interface when the main system needs to be switched, and realize the monitoring and control of the standby system to the trackside equipment through the second interface and the third interface to complete the control right switching from the main system to the standby system.
2. The signaling system of claim 1, wherein the first train control subsystem further comprises a first on-board device and a zone controller, and wherein the second train control subsystem further comprises a second on-board device; The signal system is configured as a default by taking the first train control subsystem as a main system and the second train control subsystem as a standby system; in a main system mode, the train runs by the first vehicle-mounted equipment according to the movement authorization of the area controller, and the trackside equipment is controlled by the interlocking equipment; after the train is switched to the standby system mode, the second vehicle-mounted equipment operates according to the self-perception and the resources applied to the resource controller, and the trackside equipment is controlled by the resource controller through the object controller.
3. The signaling system of claim 1, further comprising an automatic train monitoring device, wherein the first train control subsystem and the second train control subsystem share the automatic train monitoring device.
4. The signaling system of claim 1, wherein the active system is required to be switched, wherein the signaling system detects that an on-board device or an interlocking device of the active system fails, or receives a manual switch command.
5. The signaling system of claim 1, wherein the control switching comprises coordination of a train control switching with a trackside device control switching, wherein trackside device control is handed over the first interface, and wherein after the handover is completed, the train control is switched to an in-vehicle device corresponding to a subsystem currently controlling the trackside device.
6. A signal system control right switching method, characterized in that it is applied to the signal system according to any one of claims 1 to 5, said method comprising: Monitoring and judging whether the active system needs to be switched; Triggering a switching flow when judging that switching is needed; responding to the switching flow, sending a switching instruction to the resource controller through a first interface in the fusion interface unit, and transferring the control right state of the trackside equipment between the interlocking equipment and the resource controller; After the control right state is handed over, the resource controller and the object controller in the second train control subsystem take over the monitoring and control of the trackside equipment through the second interface and the third interface, and the control right switching from the main system to the standby system is completed.
7. The method for switching control rights of a signal system according to claim 6, wherein the monitoring to determine whether the active system needs to be switched comprises: Monitoring the running state of the vehicle-mounted equipment or the interlocking equipment in the main system; And when the vehicle-mounted equipment or the interlocking equipment is monitored to be in fault or a manual switching instruction is received, judging that switching is needed.
8. The method of claim 6, wherein the control right status information handed over via the first interface includes at least a locked state of a switch, an open state of a traffic signal, an occupied state and an idle state of a track section.
9. The method of claim 6, further comprising the step of checking consistency of the current trackside equipment state through the second interface by the signal system before handing over the control right state through the first interface, thereby ensuring continuity of the states before and after the switching.
10. The signal system control right switching method according to claim 7, wherein when a failure of the in-vehicle device of the main system is monitored, the method further comprises: and simultaneously or after the state of the control right of the trackside equipment is handed over, the control right of the train is switched from the vehicle-mounted equipment of the first train control subsystem to the vehicle-mounted equipment of the second train control subsystem.

Description

Signal system and control right switching method thereof Technical Field The invention relates to the technical field of rail transit, in particular to a signal system and a control right switching method thereof. Background The urban rail transit signal system is a core for guaranteeing the safe and efficient operation of trains. Currently, communication-based train control (CBTC) systems are mature in technology and wide in application, and have become a mainstream choice for newly-built and retrofitted lines. The train automatic operation with high density and high safety is realized by train-ground continuous communication and mobile blocking principle. Meanwhile, new generation train operation control technology is also continuously developed, and typical characteristics of the new generation train operation control technology comprise a control framework taking resource management as a core and a stronger autonomous perception and operation decision capability of a train. Such new architecture technologies theoretically have higher system flexibility and simplification potential. However, such new technologies have not been validated for long-term reliability for large-scale engineering applications, and stability and maturity in their engineering applications remain to be confirmed. Thus, in the reliability upgrade or retrofit projects of existing lines, owners generally still tend to choose a well-validated CBTC system with lower technical risk. The prior art scheme has obvious defects that if a line is only provided with a single-system signal system, such as a pure CBTC system, when core equipment of the system fails, operation service is interrupted or operation must be greatly degraded, and the reliability and the service level of urban rail transit are obviously affected. Although it is theoretically possible to configure a CBTC system with a standby subsystem of the same system, this would greatly increase construction costs and system complexity, and is not an economical and efficient solution. On the other hand, if the new generation technology is completely waited for and then is applied after being completely mature, the technical characteristics of the new generation technology cannot be utilized at the present stage, and a heterogeneous and effective backup means is provided for the existing high-reliability CBTC system, so that the usability and toughness of the whole signal system cannot be fundamentally improved. Therefore, an innovative solution is urgently needed in the industry, and the novel technical capabilities with the characteristics of resource management and train autonomous operation can be effectively fused on the basis of fully utilizing the existing mature and reliable CBTC system, so as to construct a heterogeneous fused redundant system. The key problem to be solved by the system is that when the main system fails, the quick switching to the standby system can be realized, so that the operation interruption time is shortened to the maximum extent, and the operation influence caused by the failure of the signal system is reduced. Disclosure of Invention The invention provides a signal system and a control right switching method thereof, which are used for solving the defects of high operation interruption risk caused by single-point faults of the signal system and lack of reliable fusion and quick switching mechanisms among heterogeneous systems in the prior art. The invention can quickly switch to the standby system to continue operation after the main system faults occur during operation, realize seamless switching and quick operation recovery of the main and standby heterogeneous systems, and reduce operation influence caused by signal system faults. The technical scheme provided by the invention is as follows: in a first aspect, the present invention provides a signaling system comprising a first train control subsystem, a second train control subsystem, and a fusion interface unit; the first train control subsystem includes an interlock; The second train control subsystem comprises a resource controller and an object controller; The fusion interface unit includes: The system comprises an interlocking device, a first interface, a second interface, a first interface and a second interface, wherein the interlocking device is connected with the resource controller and is used for transmitting a control right state and a switching instruction of the trackside device between the interlocking device and the resource controller; The second interface is connected with the interlocking device and the object controller and is used for the interlocking device to acquire the state of the trackside device through the object controller; A third interface, connected to the resource controller and the object controller, for the resource controller to control the trackside equipment through the object controller; The signal system is configured to take one subsystem as a main syste