Platform door control monitoring system and method, electronic equipment and medium

Abstract

The embodiment of the invention relates to the technical field of rail traffic control, and provides a platform door control monitoring system and method, electronic equipment and a medium, and the system comprises a signal system, platform door control monitoring equipment, a comprehensive operation and maintenance platform and a door control unit; the platform door control monitoring device is in communication connection with the signal system, the comprehensive operation and maintenance platform and the door control unit through a network. The signal system is used for generating a platform door control instruction; the platform door control monitoring equipment is used for receiving and responding to the platform door control instruction to control a target platform door through a target door control unit; the platform door control monitoring equipment is also used for acquiring first monitoring information of the door control unit; and the comprehensive operation and maintenance platform is used for carrying out safety monitoring on the gating unit according to the first monitoring information. Therefore, the signal transmission time delay of the platform door system is reduced, the influence of equipment faults on operation is reduced, and the maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of rail transit control, and in particular to a platform door control monitoring system and method, electronic equipment and a medium. BACKGROUND

[0002] The platform door is one of the important guarantees for the safe operation of urban rail transit, effectively preventing the intrusion of foreign objects and personnel into the track area, and improving the safety and comfort of passengers waiting for trains. In the existing urban rail transit control system, the interlocking subsystem can open and close the platform door according to the platform door control information sent by the vehicle subsystem, and passengers can get on and off the train through the platform door. In recent years, the fully automatic operation system (FAO) has been widely applied to the operation, construction and planning of urban rail transit lines, and has increasingly become the development direction of urban rail transit. Functions such as mixed operation of large and small marshalling, flexible variable marshalling, and train-to-train communication have also been gradually realized, which puts forward higher requirements for the safety and reliability of the linkage control of the platform door and the signal system.

[0003] The platform is the only way for passengers to get on and off the subway, and the normal opening and closing of the platform door is an important part of the urban rail transit operation scenario. The interlocking subsystem in the signal system interfaces with the platform door system, and controls and judges the state of the platform door according to the control command of the vehicle subsystem. The platform door system controls the opening and closing of the platform door according to the platform door opening and closing command sent by the signal system, the platform screen door local control panel (PSL), the integrated backup panel (IBP) and the local control box (LCB) control command, controls the start or stop of the gap detection according to the gap detection command sent by the signal system, and sends the platform door and gap detection state to the computer interlocking subsystem. The platform door system and the signal system exchange platform door alignment isolation information to realize the alignment isolation function.

[0004] The traditional platform door system has the following problems: 1. The linkage control of the platform door passes through multiple devices such as the vehicle on-board controller (VOBC), the computer-based interlocking (CI), the programmable safety controller (PSC) and the door control unit (DCU), with multiple transmission nodes and large transmission delay, which occupies valuable train stopping time, and may cause train delay and reduce passenger transport efficiency when the personnel are dense.

[0005] 2. Because the entire linkage of the platform screen door has many nodes and dispersed logic, there are many points of failure, which are not easy to troubleshoot and the workload of operation and maintenance is large. Moreover, the platform screen door uses a lot of hard wiring, and there are many relays that operate frequently. However, the lifespan of the relays is limited, resulting in high maintenance costs. Summary of the Invention

[0006] This invention provides a platform screen door control and monitoring system, method, electronic device, and medium to address the shortcomings of existing platform screen door systems, such as numerous signal transmission nodes, long transmission delays, and poor maintainability. It aims to reduce signal transmission delays in platform screen door systems, minimize the impact of equipment failures on operations, and lower maintenance costs.

[0007] This invention provides a platform screen door control and monitoring system, comprising: a signaling system, platform screen door control and monitoring equipment, an integrated operation and maintenance platform, and a door control unit; The platform screen door control and monitoring equipment is connected to the signal system, the integrated operation and maintenance platform and the door control unit via a network. The signal system is used to generate platform door control commands; The platform screen door control and monitoring equipment is used to receive and respond to the platform screen door control command to control the target platform screen door through the target door control unit; The platform door control and monitoring equipment is also used to acquire the first monitoring information of the door control unit; The integrated operation and maintenance platform is used to perform security monitoring on the gate control unit based on the first monitoring information.

[0008] In one possible implementation, the platform screen door control and monitoring equipment includes a platform screen door controller and a platform screen door monitoring unit; The platform screen door controller is used to acquire the status information of the target platform screen door and send the status information of the target platform screen door to the signal system, so that the signal system generates a platform screen door control command for the target platform screen door based on the status information; The platform door monitoring device is used to acquire second monitoring information from the platform door controller software, which is used to control the platform door controller.

[0009] In one possible implementation, the system further includes a power supply system and other control devices; The platform door controller is communicatively connected to the other control devices and is used to perform various controls on the platform door, including opening and closing the platform door, multi-level control, gap detection, alignment isolation, and cyclic testing. The platform door monitoring unit communicates with the power system and the integrated operation and maintenance platform via a network; The platform door monitoring unit is used to acquire the third monitoring information of the power system, the first monitoring information of the door control unit, and the fourth monitoring information of other control devices, and send the first, second, third, and fourth monitoring information to the integrated operation and maintenance platform. The integrated operation and maintenance platform is used to perform safety monitoring on the door control unit, the platform door controller software, the power system, and the other control devices.

[0010] In one possible implementation, the platform door controller operates on a 2x2-out-of-2 secure computing platform; The 2x2 take-2 architecture includes two redundant control systems, each of which employs a dual-processor synchronous operation and cross-comparison mechanism.

[0011] The present invention also provides a platform screen door control and monitoring method, comprising: Acquire platform screen door control commands generated by the signaling system; In response to the platform door control command, a target door control unit is determined, and the target platform door is controlled through the target door control unit; The target gating unit is monitored for status to obtain first monitoring information; The first monitoring information is sent to the integrated operation and maintenance platform, which then performs security monitoring on the target gate unit based on the first monitoring information.

[0012] In one possible implementation, the method further includes: The platform door control commands are received and cross-verified synchronously by dual processors; When the calculation results of the two processors are consistent, the platform door control command is sent to the target door control unit.

[0013] In one possible implementation, the method further includes: When any processor fails, no platform door control command will be output to the target gate control unit.

[0014] The present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the platform door control and monitoring method as described above.

[0015] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the platform door control and monitoring method as described above.

[0016] The present invention also provides a computer program product, including a computer program that, when executed by a processor, implements the platform door control and monitoring method as described above.

[0017] The present invention provides a platform screen door control and monitoring system, method, electronic device, and medium. The system includes: a signaling system, platform screen door control and monitoring equipment, an integrated operation and maintenance platform, and a door control unit. The platform screen door control and monitoring equipment is connected to the signaling system, the integrated operation and maintenance platform, and the door control unit via a network. The signaling system is used to generate platform screen door control commands. The platform screen door control and monitoring equipment is used to receive and respond to the platform screen door control commands to control the target platform screen door through the target door control unit. The platform screen door control and monitoring equipment is also used to acquire first monitoring information of the door control unit. The integrated operation and maintenance platform is used to perform safety monitoring of the door control unit based on the first monitoring information. Compared with the shortcomings of existing platform screen door systems, such as multiple signal transmission nodes, large transmission delays, and poor maintainability, this solution, based on a lightweight integrated platform screen door control and monitoring system, reduces signal transmission nodes through network communication, thereby reducing signal transmission delays and lowering operation and maintenance workload and costs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the platform screen door control and monitoring system provided by the present invention.

[0020] Figure 2 This is a redundant structure diagram of the platform screen door control and monitoring equipment provided by the present invention.

[0021] Figure 3 This is a flowchart illustrating the platform door control and monitoring method provided by the present invention.

[0022] Figure 4 This is a schematic diagram of the structure of the electronic device provided by the present invention. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0024] To facilitate understanding of the embodiments of the present invention, further explanations and descriptions will be provided below with reference to the accompanying drawings and specific embodiments. These embodiments do not constitute a limitation on the embodiments of the present invention.

[0025] Figure 1 This is a schematic diagram of the platform screen door control and monitoring system provided by the present invention, as shown below. Figure 1 As shown, the system includes a signaling system, platform screen door control and monitoring equipment, an integrated operation and maintenance platform, and a door control unit.

[0026] The signaling system typically includes an onboard control unit (VOBC) and a computer interlocking subsystem (CI). The signaling system is used to obtain the status information of the target platform door through the platform door controller and generate platform door control commands for the target platform door based on the status information.

[0027] The platform screen door control and monitoring equipment adopts a hierarchical distributed architecture, with the core consisting of two main parts: the platform screen door controller and the platform screen door monitoring unit. The platform screen door controller, as the core safety processing unit, establishes a secure communication connection with the signaling system through redundant Ethernet interfaces, directly receives platform screen door opening and closing commands from the signaling system, and provides real-time feedback of platform screen door status information to the signaling system.

[0028] The platform door controller communicates with all door control units (DCUs) in the station via a fieldbus (such as CAN bus or industrial Ethernet). Each door control unit controls the motor drive, door lock device and sensors of a platform door to achieve precise door opening and closing actions and obstacle detection.

[0029] The platform screen door monitoring unit acquires real-time operating parameters (including current, voltage, door opening and closing time, fault codes, etc.) of all DCUs from the platform screen door controller software via Ethernet to form the first monitoring information. Alternatively, it acquires the operating status of the area PSL local control panel, the button status of the IBP integrated backup panel, and the detection status of the gap detection device to form the fourth monitoring information of other control equipment. It can also acquire the second monitoring information (e.g., software operation information) from the platform screen door controller software, which is used to control the platform screen door controller. Simultaneously, it collects the voltage status of the power supply system through a separate monitoring interface to form the third monitoring information. After fusing all the above monitoring information, the platform screen door monitoring unit uploads it to the integrated operation and maintenance platform via a standard protocol interface (such as MQTT or OPC UA).Figure 1 The integrated monitoring system enables remote diagnosis and early warning of equipment health status.

[0030] The power system provides dual redundant power supplies for the platform door controller and platform door monitoring unit. Other control devices, including PSL, IBP, LCB and gap detection devices, are connected to the platform door controller via hard wires or communication interfaces.

[0031] Figure 2 This is a redundant structure diagram of the platform screen door control and monitoring equipment provided by the present invention. This embodiment details the redundant safety architecture of the platform screen door controller. Figure 2 As shown, the platform door controller operates on a 2x2 safety computing platform. This architecture consists of two completely independent control systems (System I and System II). Each system adopts a heterogeneous dual-processor design. The two processors synchronously execute the same platform door control logic operations and perform periodic cross-comparison of the calculation results through a high-speed serial interface.

[0032] When the results of the dual-processor calculations are consistent, the system outputs a valid control command; if an inconsistency is detected, the system immediately redirects to the safety side (e.g., does not output any commands to the gate control unit) and stops outputting commands. The two systems communicate with each other via redundant fiber optic or Ethernet links to achieve periodic synchronization and cross-verification of critical safety data (such as platform screen door control commands). This redundancy structure meets the SIL4 safety integrity level requirements.

[0033] This invention proposes a lightweight integrated platform door control and monitoring device based on a 2x2 safety platform, achieving a safety integrity level of SIL4, thus improving equipment safety and reducing the impact of equipment failures on operations. The platform door control device communicates directly with the onboard equipment to achieve platform door linkage, reducing intermediate transmission nodes, shortening transmission delays, and improving passenger transport efficiency. It adopts Ethernet instead of traditional relay methods, simplifying hard-wired relays, reducing failure points, lowering maintenance costs, and improving maintainability.

[0034] The platform screen door control and monitoring system provided by this invention includes a signaling system, platform screen door control and monitoring equipment, an integrated operation and maintenance platform, and a door control unit. The platform screen door control and monitoring equipment is connected to the signaling system, the integrated operation and maintenance platform, and the door control unit via a network. The signaling system generates platform screen door control commands. The platform screen door control and monitoring equipment receives and responds to the platform screen door control commands to control a target platform screen door through the target door control unit. The platform screen door control and monitoring equipment also acquires first monitoring information from the door control unit. The integrated operation and maintenance platform performs safety monitoring on the door control unit based on the first monitoring information. Compared to the shortcomings of existing platform screen door systems, such as numerous signal transmission nodes, long transmission delays, and poor maintainability, this system, based on a lightweight integrated platform screen door control and monitoring system, reduces signal transmission nodes through network communication, thereby reducing signal transmission delays and lowering operation and maintenance workload and costs.

[0035] Figure 3 This is a flowchart illustrating the platform screen door control and monitoring method provided by the present invention, as shown below. Figure 3 As shown, the method includes the following: S31. Obtain the platform door control command generated by the signaling system.

[0036] This method is implemented by the platform door controller's safety processing software (platform door controller software). First, it establishes an encrypted session with the signaling system through a security communication protocol (such as RSSP-I railway signal security communication protocol) and receives platform door control commands containing security verification codes.

[0037] S32. The platform door control command is received and cross-verified synchronously by dual processors.

[0038] Upon arrival of the instruction, it is received synchronously by both processors and parsed independently to extract the instruction type (open / close), target gate group number, timestamp, and security verification information. Then, cross-verification is performed through shared memory between the processors to compare whether the parsing results of the two processors are completely consistent.

[0039] S33. When the calculation results of the dual processors are consistent, the platform door control command is sent to the target door control unit, and the target platform door is controlled by the target door control unit.

[0040] If the dual-processor verification passes and the results are consistent, a control message with a secure signature is generated and sent to the corresponding target gate control unit (DCU). The target gate control unit (DCU) executes motor drive and door lock release actions to control the target platform door.

[0041] S34. When any processor fails, no platform door control command shall be output to the target gate control unit.

[0042] If verification fails or the results from the two processors are inconsistent, execution is refused and a safety alarm is triggered. During operation, processor health is continuously monitored. If a fault is detected in either processor (such as watchdog timeout, self-test failure, or inconsistency between the two processors), the system immediately switches to the safety side (without outputting any platform door control commands to the target gate unit).

[0043] S35. Perform status monitoring on the target gating unit and obtain first monitoring information.

[0044] S36. The first monitoring information is sent to the integrated operation and maintenance platform, and the integrated operation and maintenance platform performs security monitoring on the target gate control unit based on the first monitoring information.

[0045] Meanwhile, the platform door monitoring unit periodically collects the operating data (number of door openings and closings, motor current curves, and fault codes) of the target DCU or all DCUs in real time as the first monitoring information. The first monitoring information is sent to the integrated operation and maintenance platform, which then performs safety monitoring on the door control unit based on the first monitoring information.

[0046] Optionally, the system can also simultaneously collect the operation status of the local PSL control panel, the button status of the IBP integrated backup panel, and the detection status of the gap detection device through the platform screen door controller software to form the fourth monitoring information for other control equipment; it can also acquire the second monitoring information from the platform screen door controller software; and simultaneously collect the voltage status of the power system through an independent monitoring interface to form the third monitoring information. After data packaging and compression, the data is uploaded to the integrated operation and maintenance platform at fixed intervals (e.g., 1 second) through standard protocol interfaces (such as MQTT or OPCUA). The integrated operation and maintenance platform performs real-time analysis of the monitoring data based on machine learning algorithms, identifies potential fault trends, and generates early warning work orders.

[0047] This embodiment is illustrated by... Figure 3The platform screen door control and monitoring method shown achieves a comprehensive improvement in safety, timeliness, and maintainability. Specifically, it adopts a secure communication protocol to directly interact with the signaling system and performs dual-processor cross-verification, raising the system's security integrity level to SIL4. This ensures error-proof and tamper-proof capabilities throughout the entire command transmission and processing process. In the event of a processor failure, it immediately redirects to the safety side and triggers seamless takeover by the computer interlocking subsystem, eliminating the safety hazards of traditional SIL2 level systems. By simplifying transmission nodes and replacing hard-wired relays with Ethernet communication, it significantly shortens the control command transmission delay, accelerates the platform screen door response speed, effectively reduces train dwell time, and improves operational efficiency. Simultaneously, it collects real-time monitoring information from all departmental control units, power systems, and PSL / IBP devices and uploads it to the integrated operation and maintenance platform. This enables remote centralized monitoring of equipment status and machine learning-based fault trend early warning, transforming passive maintenance into proactive prevention. This significantly reduces the failure rate and maintenance workload of mechanical components such as relays, significantly reduces the total lifecycle maintenance cost, and improves the overall reliability and availability of the system.

[0048] Figure 4 An example is a schematic diagram of the physical structure of an electronic device, such as... Figure 4 As shown, the electronic device may include a processor 410, a communications interface 420, a memory 430, and a communication bus 440, wherein the processor 410, communications interface 420, and memory 430 communicate with each other via the communication bus 440. The processor 410 can call logical instructions in the memory 430 to execute a platform screen door control monitoring method. This method includes: acquiring a platform screen door control command generated by the signaling system; determining a target gate control unit in response to the platform screen door control command, and controlling the target platform screen door through the target gate control unit; monitoring the status of the target gate control unit and acquiring first monitoring information; sending the first monitoring information to an integrated operation and maintenance platform, and having the integrated operation and maintenance platform perform safety monitoring on the target gate control unit based on the first monitoring information.

[0049] Furthermore, the logical instructions in the aforementioned memory 430 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0050] On the other hand, the present invention also provides a computer program product, which includes a computer program that can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the platform screen door control and monitoring method provided by the above methods. The method includes: acquiring a platform screen door control command generated by a signaling system; determining a target gate control unit in response to the platform screen door control command, and controlling the target platform screen door through the target gate control unit; monitoring the status of the target gate control unit and acquiring first monitoring information; sending the first monitoring information to an integrated operation and maintenance platform, and performing safety monitoring of the target gate control unit through the integrated operation and maintenance platform based on the first monitoring information.

[0051] In another aspect, the present invention also provides a non-transitory computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the platform screen door control and monitoring method provided by the above methods. The method includes: acquiring a platform screen door control command generated by a signaling system; determining a target gate control unit in response to the platform screen door control command, and controlling the target platform screen door through the target gate control unit; monitoring the status of the target gate control unit and acquiring first monitoring information; sending the first monitoring information to an integrated operation and maintenance platform, and performing safety monitoring of the target gate control unit through the integrated operation and maintenance platform based on the first monitoring information.

[0052] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0053] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A platform screen door control and monitoring system, characterized in that, include: Signaling system, platform screen door control and monitoring equipment, integrated operation and maintenance platform and door control unit; The platform screen door control and monitoring equipment is connected to the signal system, the integrated operation and maintenance platform and the door control unit via a network. The signal system is used to generate platform door control commands; The platform screen door control and monitoring equipment is used to receive and respond to the platform screen door control command to control the target platform screen door through the target door control unit; The platform door control and monitoring equipment is also used to acquire the first monitoring information of the door control unit; The integrated operation and maintenance platform is used to perform security monitoring on the gate control unit based on the first monitoring information.

2. The platform screen door control and monitoring system according to claim 1, characterized in that, The platform door control and monitoring equipment includes a platform door controller and a platform door monitoring unit; The platform screen door controller is used to acquire the status information of the target platform screen door and send the status information of the target platform screen door to the signal system, so that the signal system generates a platform screen door control command for the target platform screen door based on the status information; The platform door monitoring device is used to acquire second monitoring information from the platform door controller software, which is used to control the platform door controller.

3. The platform screen door control and monitoring system according to claim 2, characterized in that, The system also includes a power supply system and other control devices; The platform door controller is communicatively connected to the other control devices and is used to perform various controls on the platform door, including opening and closing the platform door, multi-level control, gap detection, alignment isolation, and cyclic testing. The platform door monitoring unit communicates with the power system and the integrated operation and maintenance platform via a network; The platform door monitoring unit is used to acquire the third monitoring information of the power system, the first monitoring information of the door control unit, and the fourth monitoring information of other control devices, and send the first, second, third, and fourth monitoring information to the integrated operation and maintenance platform. The integrated operation and maintenance platform is used to perform safety monitoring on the door control unit, the platform door controller software, the power system, and the other control devices.

4. The platform screen door control and monitoring system according to claim 2, characterized in that, The platform door controller operates on a 2x2-out-of-2 secure computing platform. The 2x2 take-2 architecture includes two redundant control systems, each of which employs a dual-processor synchronous operation and cross-comparison mechanism.

5. A platform screen door control and monitoring method, applied to the platform screen door control and monitoring system as described in any one of claims 1-4, characterized in that, include: Acquire platform screen door control commands generated by the signaling system; In response to the platform door control command, a target door control unit is determined, and the target platform door is controlled through the target door control unit; The target gating unit is monitored for status to obtain first monitoring information; The first monitoring information is sent to the integrated operation and maintenance platform, which then performs security monitoring on the target gate unit based on the first monitoring information.

6. The method according to claim 5, characterized in that, After acquiring the platform screen door control command generated by the signal acquisition system, the following is included: The platform door control commands are received and cross-verified synchronously by dual processors; When the calculation results of the two processors are consistent, the platform door control command is sent to the target door control unit.

7. The method according to claim 5, characterized in that, The method further includes: When any processor fails, no platform door control command will be output to the target gate control unit.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and running on the processor, characterized in that, When the processor executes the computer program, it implements the platform door control and monitoring method as described in any one of claims 5 to 7.

9. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the platform door control and monitoring method as described in any one of claims 5 to 7.

10. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it implements the platform door control and monitoring method as described in any one of claims 5 to 7.

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