Platform shielding door control system and method based on full-electronic computer interlocking

Abstract

The invention discloses a platform shielding door control system and method based on full-electronic computer interlocking, and belongs to the technical field of rail transit. The network communication module and the input and output interface module realize direct information interaction among the signal control system, the control unit and the gating unit, and interaction among the signal control systems is not needed when a control instruction is issued, so that integrated design from logic processing to execution control and state monitoring is realized; according to the utility model, inherent potential safety hazards and defects of a relay execution control circuit are completely eradicated, the system has the characteristics of simple overall structure, rapid construction and debugging and convenient later maintenance, the reliability and availability of the system are remarkably enhanced, and the control precision and effect of the shielding door are improved.

Description

Technical Field

[0001] The present invention relates to the field of rail transit technology, and in particular to a platform screen door control system and method based on full electronic computer interlocking. Background Art

[0002] Platform screen doors are an important part of rail transit. They are used to separate the track area from the platform area, effectively protecting the safety of passengers, improving the waiting environment, and achieving energy conservation and emission reduction. They mainly include the power supply system, platform door mechanical system, and control system (PSC). When the platform screen door control system works normally, it must follow the control commands of the signal system. At the same time, in order to ensure the safety of passengers getting on and off the train, the signal system will monitor the status of the screen door, control the synchronous opening and closing of the train door and the screen door, and ensure operational safety and efficiency.

[0003] At present, the traditional platform screen door control system and signal control system are different control systems. The information interaction between them requires cumbersome and complex information transmission (the door opening or closing command from the on-board subsystem needs to be sent to the interlocking subsystem first, and then the interlocking subsystem excites the corresponding relay before it can be sent to the platform screen door system). In addition, the platform screen door control system is mostly built with PLC circuits, which have complex wiring, many welding points, and difficult interface troubleshooting. Therefore, it is limited by functions, performance, and safety limitations and can no longer meet the current urban rail transit's growing transportation efficiency and safety needs.

[0004] Chinese patent, publication number: CN115126376A, publication date: September 30, 2022, discloses an interlocking platform screen door control method and device, by receiving the target control instruction issued by the on-board equipment; based on the target control instruction, driving the target relay of the platform screen door to move to the target state, the target state corresponds to the target control instruction, and the target relay includes a door opening relay, a door closing relay and a screen door grouping relay; determining that the next control instruction of the on-board equipment is not received and the driving time of the target relay is greater than the target threshold, driving all the target relays to fall, and it still only issues control instructions through the relay, and the information transmission between the screen door control system and the signal control system is inconvenient, and the control effect is poor. Summary of the invention

[0005] The present invention aims at the problem in the prior art that when a platform screen door control system receives a control instruction, it needs to interact with signal control systems before it can be sent to the platform screen door control system, thus resulting in inaccurate control of the platform screen door and poor control effect. The present invention provides a platform screen door control system based on full electronic computer interlocking, by integrating a control unit and a signal control system into the platform screen door control system, and realizing direct information interaction between the signal control system and the control unit and the door control unit through a network communication module and an input / output interface module. When sending control instructions, there is no need to interact with signal control systems, thus realizing an integrated design from logic processing to execution control and status monitoring, eliminating the inherent safety hazards and defects of relay execution control circuits, having the characteristics of simple overall structure, fast construction and debugging, and convenient later maintenance, significantly enhancing the reliability and availability of the system, and improving the control accuracy and effect of the platform screen door.

[0006] In a first aspect, a technical solution provided in an embodiment of the present invention is: a platform screen door control system based on full electronic computer interlocking, including a functional software module, a network communication module, an input and output interface module, a signal control system module, a control unit and a door control unit; The functional software module obtains the first control signal and device status information sent by the signal control system module through the network communication module, generates a first control instruction based on the first control rule and sends it to the door control unit through the input and output interface module; The functional software module obtains the second control signal sent by the control unit through the input-output interface module, generates a second control instruction based on the second control rule, and sends it to the gate control unit through the input-output interface module; The gate control unit performs a corresponding action according to the first control instruction and / or the second control instruction.

[0007] In this scheme, the functional software module, network communication module, input / output interface module, and maintenance detection module can be regarded as the platform shielding door control system. The control unit is manually operated as the second control system, and the network communication module is connected to the signal control system module to directly exchange information with the signal control system. When receiving the control command of the signal control system, there is no need to send it to the interlocking subsystem first, and then send it to the platform shielding door system after the interlocking subsystem excites the corresponding relay. The control command can be received directly, which significantly improves the speed of control command transmission and system response speed; the functional software module collects the equipment status signal detected by the signal control system module, and sends it to the maintenance detection module according to the analysis result of the equipment status signal, realizes rapid self-detection and self-diagnosis according to the status of the equipment, and generates diagnosis results, so as to ensure the normal operation of the system and the shielding door and prevent operational failures.

[0008] Preferably, the signal control system module includes an interlocking subsystem, a vehicle-mounted subsystem, a ZC subsystem and an ATS subsystem; The interlocking subsystem is used to collect device status signals and determine whether to release the interlocking state of each device based on the device status signals; The vehicle-mounted subsystem is used to generate a first control signal according to information collected by the interlocking subsystem, the ZC subsystem and the ATS subsystem; The ZC subsystem is used to determine whether the platform screen door is in a normal operating state, and send the determination result to the interlocking subsystem; the ATS subsystem is used to monitor the operation information of the train, and send the operation information of the train to the interlocking subsystem.

[0009] In this solution, the signal control system is responsible for detecting the operating status of the system and equipment and issuing control instructions. The interlocking subsystem can monitor the status of the train and the platform shield door, and control the opening and closing of the platform shield door when safety conditions are met, thereby preventing conflicts and collisions between the train and the platform shield door; the ZC subsystem is mainly composed of the ZC host processing unit, communication controller, FTSM (functional test support module), ZC maintenance machine and other parts. By working in coordination with other parts of the signal control system, it can accurately judge the stationary state of the train and accurately control the opening / closing operation of the platform shield door. This process is not It not only ensures the safe linkage between the train and the platform screen door, but also improves the overall operation efficiency and safety of the rail transit system; the ATS subsystem compiles the train operation plan according to the train operation diagram and timetable, and monitors the operation status of the train and the platform screen door in real time, including information such as position, speed, and door opening and closing status. The on-board subsystem analyzes the information collected by the interlocking subsystem, ZC subsystem and ATS subsystem, and generates the first control instruction when the safety conditions are met. Through the close communication and collaboration of the interlocking subsystem, on-board subsystem, ZC subsystem and ATS subsystem, the safe and orderly operation of the platform screen door is ensured.

[0010] Preferably, the network communication module is connected to the input / output interface module, the functional software module, the maintenance detection module and the signal control system module respectively; the input / output interface module is connected to the control unit, the functional software module and the door control unit respectively; The control unit includes a local control panel and an integrated backup panel; The local control panel and the integrated backup panel are used to release the interlocking state of the local control panel and the integrated backup panel and generate and send a second control signal when the control program set in the signal control system conflicts with the actual equipment state.

[0011] In this solution, the control unit is used to manually control the platform shielding door when a signal control system fails or when a functional software module or a network communication module fails. The input and output interface module receives the second control signal and generates a second control instruction to send to the door control unit to control the opening and closing of the platform shielding door. It can be flexibly adjusted according to the actual operating conditions, thereby improving the flexibility of the platform shielding door opening and closing, helping to cope with emergencies and improving the operation safety of the train.

[0012] Preferably, the first control rule is that when the functional software module and the network communication module are working normally, a first control instruction is generated based on the first control signal sent by the signal control system module and the device status information and sent to the door control unit to control the operation of the shielding door; The second control rule is that when the input / output interface module detects a failure in the functional software module or / and the network communication module, a second control instruction is generated based on a second control signal sent by the control unit and sent to the door control unit to control the operation of the shielding door.

[0013] In this solution, in order to control the platform shielding door in the event of an emergency, when the functional software module and / or the network communication module fails and cannot receive the first control signal sent by the signal control system module, the input-output interface module collects the second control signal of the control unit and generates a second control instruction to control the platform shielding door, thereby improving the system's ability to respond to emergencies and thus improving the operation safety of the train and the personal safety of passengers.

[0014] Preferably, it further comprises a maintenance detection module, wherein the maintenance detection module is connected to the functional software module and the input and output interface module respectively; The maintenance detection module at least receives operation data, operation status and log information from the functional software module and the door control unit, performs fault diagnosis on the shielding door control system and the shielding door based on the above information, locates the fault based on the diagnosis result and sends an alarm signal.

[0015] In this solution, the maintenance detection module receives diagnostic maintenance information, logic application data log information, gate control unit operation status and log information from the signal control system module, functional software module, gate control unit, etc., to achieve fault location analysis of the platform screen door control system and gate control unit, operation and maintenance viewing, etc. It has online rapid self-detection and self-diagnosis functions, reduces the probability of safety hazards and defects during system operation, and improves the safety of screen door switching.

[0016] In a second aspect, a technical solution provided in an embodiment of the present invention is: a platform screen door control method based on full electronic computer interlocking, comprising the following steps: S1. Detect device status and obtain device status signal to determine whether the device is in a preset operating state. If yes, proceed to S2; otherwise, proceed to S3; S2. Generate a first control signal based on the installed control program, and the functional software module generates a first control instruction based on the first control signal and the device status signal; S3, releasing the interlocking state of the control unit, the control unit generates a second control signal and sends it to the functional software module, and the functional software module generates a second control instruction based on the second control signal; S4, the shielding door operates based on the first control instruction or the second control instruction, collects and locks the shielding door status after the operation is completed, generates an operation log and sends it to the maintenance detection module in real time.

[0017] In this scheme, the running state of the equipment is detected by the signal control system, so as to ensure that there will be no safety hazards when controlling the switch of the shield door, and the safe and orderly operation of the shield door is ensured. When the running state of the equipment is in the preset state, the switch control of the shield door can be realized directly according to the control signal issued by the signal control system, and there is no need to send the control signal through each subsystem module in the signal control system module, which improves the speed of sending the control signal, thereby significantly improving the response speed of the shield door; when the equipment does not meet the preset state, such as encountering an emergency that causes the train to be delayed or there is an obstacle in the shield door, the shield door will no longer be controlled by the set control program, and the shield door will be controlled by the manual operation control unit to deal with the emergency, which can maximize the normal operation of the train and the safety of passengers; in the process of shield door control, the running state of the shield door and other equipment is detected in real time, and the shield door is locked after the detection is completed to prevent other interference signals from causing the shield door to be opened or closed by mistake, thereby affecting the normal operation of the train, and ensuring the safety of the train and passengers.

[0018] Preferably, in S1, detecting the device state to obtain the device state signal to determine whether the device is in a preset operating state includes the following steps: Detect whether the train enters the platform. If the train enters the platform, detect the train status and the platform screen door status; the train status at least includes the stopped position, speed and direction; the platform screen door status at least includes the switch status, locking status and obstacle judgment of the platform screen door; compare the detected train status and platform screen door status with the preset status to determine whether the equipment is in the preset operating state.

[0019] In this scheme, in order to ensure the safety of the platform screen door switch, before the platform screen door is started or closed, it is necessary to ensure that the train is in the platform and the train door is aligned with the platform screen door. Therefore, it is necessary to detect the train status and the platform screen door status, compare the detected status information with the preset status, and determine whether the signal control system or the control unit issues the control signal to control the platform screen door, so as to maximize the guarantee that the platform screen door selects the most efficient control method when controlling.

[0020] Preferably, in S2, a first control signal is generated based on the installed control program, and a functional software module generates a first control instruction based on the first control signal and the device status signal, including the following steps: When the equipment is in a preset operating state, the control unit is set to an interlocking state, and the train door is judged to be aligned with the corresponding platform screen door based on the train's stationary position, speed and direction. If aligned, the onboard subsystem sets the door opening and closing operating parameters; A first control signal is generated based on the door opening operation parameters and the door closing operation parameters and sent to a functional software module. The functional software module performs a SIL4 level operation on the first control signal and the device status signal, and generates a first control instruction based on the operation result.

[0021] In this scheme, in order to ensure the safety when controlling the opening and closing of the shielding door, SIL4, i.e. safety integrity level 4, is used as the standard to perform logical analysis on the information detected by the signal control system module to determine whether the shielding door can be safely opened and closed based on the detected information. If the SIL4 standard is met, the shielding door can be safely opened and closed, thereby generating a control signal, which can effectively maintain the safety integrity when controlling the shielding door and effectively prevent or mitigate the consequences of accidents.

[0022] Preferably, in S3, the interlocking state of the control unit is released, the control unit generates a second control signal and sends it to the functional software module, and the functional software module generates a second control instruction based on the second control signal, including the following steps: If it is detected that the device does not conform to the preset operating state, the corresponding control unit is started according to the current operating state of the device, and the start and stop sequence and start and stop time of the operation buttons of the corresponding control unit are set; The signal generated after the operation button is pressed is integrated into a second control signal and sent to the functional software module. The functional software module performs a SIL4 level operation on the second control signal and generates a second control instruction based on the operation result.

[0023] In this scheme, in order to safely and effectively control the platform shielding door when the signal control system module determines that the train is in an abnormal state or the communication with the signal control system module fails, when an abnormality is detected, the interlocking state of the control unit is released. When operating normally, the control unit is in an interlocking state. At this time, the control unit cannot control the platform shielding door to prevent conflicts in control instructions from affecting the safety of train operation. When an abnormality occurs, the platform shielding door can be controlled through various operating buttons of the control unit, which improves the system's ability to respond to emergencies, indirectly improves the control effect of the platform shielding door, and ensures the personal safety of passengers.

[0024] Preferably, the door opening operation parameters and door closing operation parameters include at least door opening start / end speed, door opening start / end acceleration and door opening start / end distance, door closing start / end speed, door closing start / end acceleration and door closing start / end distance.

[0025] In this scheme, in order to control the switching of the shielding door, it is necessary to set the parameters related to the switching action of the shielding door. By setting the speed, acceleration and distance of the shielding door switch, the various states of the shielding door during the switching process can be controlled. At the same time, these parameters of the shielding door are monitored. The current state of the shielding door can be judged based on these parameters, thereby determining whether the shielding door is in normal switching. Fault detection can be performed on the shielding door to reduce the risk of faults of the shielding door.

[0026] The beneficial effects of the present invention are as follows: the present invention integrates the control unit and the signal control system into the shielding door control system, and realizes direct information interaction between the signal control system and the control unit and the door control unit through the network communication module and the input / output interface module. When issuing control instructions, there is no need for interaction between the signal control systems, thereby realizing an integrated design from logic processing to execution control and status monitoring, eliminating the inherent safety hazards and defects of the relay execution control circuit, and having the characteristics of simple overall structure, fast construction and debugging, and convenient later maintenance, which significantly enhances the reliability and availability of the system and improves the control accuracy and effect of the shielding door.

[0027] The above invention content is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings. The drawings are only for the purpose of illustrating preferred embodiments and are not to be considered as limiting the present invention. Also, the same reference symbols are used throughout the drawings to represent the same parts.

[0029] Figure 1 The system block diagram of the platform screen door control system based on full electronic computer interlocking of the present invention; Figure 2 It is a flow chart of the platform screen door control method based on full electronic computer interlocking of the present invention; Figure 3 A schematic diagram of the vehicle-mounted subsystem controlling the platform shielding door of the present invention; Figure 4 This is a schematic diagram of the local control panel controlling the shielding door of the present invention. DETAILED DESCRIPTION

[0030] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific implementation method described herein is only an optimal embodiment of the present invention, which is only used to explain the present invention and does not limit the scope of protection of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flow charts. Although the flow charts describe the operations (or steps) as sequential processes, many of the operations (or steps) therein can be implemented in parallel, concurrently, or simultaneously. In addition, the order of the operations can be rearranged. The process can be terminated when its operation is completed, but can also have additional steps not included in the drawings; the process can correspond to a method, function, procedure, subroutine, subprogram, etc.

[0032] Example: Figure 1 As shown, in order to solve the problem in the prior art that the platform screen door control system needs to interact with the signal control system before sending the control instruction to the platform screen door control system, which leads to inaccurate control of the platform screen door and poor control effect, the present embodiment provides a platform screen door control system based on full electronic computer interlocking, including a functional software module, a network communication module, an input and output interface module, a maintenance detection module, a signal control system module, a control unit and a door control unit; The network communication module is connected to the input / output interface module, the functional software module, the maintenance detection module and the signal control system module respectively; the input / output interface module is connected to the control unit, the functional software module and the door control unit respectively; the maintenance detection module is connected to the functional software module and the input / output interface module respectively; The functional software module obtains the first control signal and device status information sent by the signal control system module through the network communication module, generates a first control instruction based on the first control rule and sends it to the door control unit through the input and output interface module; The functional software module obtains the second control signal sent by the control unit through the input-output interface module, generates a second control instruction based on the second control rule, and sends it to the gate control unit through the input-output interface module; The gate control unit performs a corresponding action according to the first control instruction and / or the second control instruction.

[0033] The functional software module, network communication module, input / output interface module, and maintenance detection module of this embodiment can be regarded as a platform shielding door control system. The control unit is manually operated as a second control system, and the network communication module is connected to the signal control system module, directly interacts with the signal control system, and judges the timeliness and effectiveness of data messages from various external subsystems. When the preset indicators are met, the message is forwarded to the functional software module for functional operation; otherwise, the message is discarded. When receiving the control instruction of the signal control system, it is not necessary to send it to the interlocking subsystem first, and then send it to the platform shielding door system after the interlocking subsystem excites the corresponding relay. The control instruction can be directly received, which significantly improves the speed of control instruction transmission and the system response speed; the functional software module collects the equipment status signal detected by the signal control system module, sends it to the maintenance detection module according to the analysis result of the equipment status signal, realizes rapid self-detection and self-diagnosis according to the status of the equipment, and generates a diagnosis result, so as to ensure the normal operation of the system and the platform shielding door and prevent operational failures.

[0034] In this embodiment, the signal control system module includes an interlocking subsystem, a vehicle-mounted subsystem, a ZC subsystem, and an ATS subsystem; The interlocking subsystem is used to collect the device status and determine whether to release the interlocking status of each device based on the device status; The vehicle-mounted subsystem is used to generate a first control signal according to information collected by the interlocking subsystem, the ZC subsystem and the ATS subsystem; The ZC subsystem is used to determine whether the platform screen door is in a normal operating state, and send the determination result to the interlocking subsystem; the ATS subsystem is used to monitor the operation information of the train, and send the operation information of the train to the interlocking subsystem.

[0035] The signal control system of this embodiment is responsible for detecting the operating status of the system and equipment and issuing control instructions. The interlocking subsystem can monitor the status of the train and the platform shield door, and control the opening and closing of the platform shield door when the safety conditions are met, so as to prevent the conflict and collision between the train and the platform shield door; the ZC subsystem is mainly composed of the ZC host processing unit, the communication controller, the FTSM (functional test support module), the ZC maintenance machine and other parts. By working in coordination with other parts of the signal control system, it can realize the accurate judgment of the train's stable state and the precise control of the opening / closing operation of the platform shield door. This process not only It ensures the safe linkage between the train and the platform screen door, and also improves the overall operation efficiency and safety of the rail transit system; the ATS subsystem compiles the train operation plan according to the train operation diagram and timetable, and monitors the operation status of the train and the platform screen door in real time, including information such as position, speed, and door opening and closing status. The on-board subsystem analyzes the information collected by the interlocking subsystem, ZC subsystem and ATS subsystem, and generates the first control instruction when the safety conditions are met. Through the close communication and collaboration of the interlocking subsystem, on-board subsystem, ZC subsystem and ATS subsystem, the safe and orderly operation of the platform screen door is ensured.

[0036] In this embodiment, the control unit includes a local control panel and an integrated backup panel; The local control panel and the integrated backup panel are used to release the interlocking state of the local control panel and the integrated backup panel and generate and send a second control signal when the control mode set in the signal control system conflicts with the actual equipment state.

[0037] The control unit of this embodiment is used to manually control the platform shielding door when a signal control system fails or when a functional software module or a network communication module fails. The input-output interface module receives the second control signal and generates a second control instruction to send to the door control unit to control the opening and closing of the platform shielding door. The second control instruction can be flexibly adjusted according to the actual operation conditions, thereby improving the flexibility of the opening and closing of the platform shielding door, helping to cope with emergencies and improving the operation safety of the train.

[0038] In this embodiment, the first control rule is that when the functional software module and the network communication module are working normally, a first control instruction is generated based on the first control signal sent by the signal control system module and the device status information and sent to the door control unit to control the operation of the shielding door; The second control rule is that when the input / output interface module detects a failure in the functional software module or / and the network communication module, a second control instruction is generated based on a second control signal sent by the control unit and sent to the door control unit to control the operation of the shielding door.

[0039] In order to control the platform shielding door in the event of an emergency, when the functional software module and / or the network communication module fails and cannot receive the first control signal sent by the signal control system module, the input-output interface module collects the second control signal of the control unit and generates a second control instruction to control the platform shielding door, thereby improving the system's ability to respond to emergencies and thus improving the operation safety of the train and the personal safety of passengers.

[0040] The input / output interface module of this embodiment is a module designed based on a self-developed platform (Better insigma Interlocking Safety targeted Architecture, BiSTAR) to realize the interface with external devices. It is developed and designed in accordance with the CENELEC EN50128 standard, adopts a fully electronic execution unit, and realizes the control and status acquisition of external devices through the safety online detection technology BIST, dynamic and static recovery technology, safety coding technology and two-out-of-two software and hardware heterogeneous architecture. At the same time, the input / output interface module must also realize that when the functional software module or the network communication module fails, it can continue to execute the opening / closing door command from the local control panel (PSL) and the integrated backup panel (IBP).

[0041] In this embodiment, the maintenance detection module at least receives operation data, operation status and log information from the functional software module and the door control unit, performs fault diagnosis on the shielding door control system and the shielding door based on the above information, locates the fault based on the diagnosis result and sends an alarm signal.

[0042] The maintenance detection module of this embodiment receives diagnostic maintenance information, logical application data log information, door control unit operation status and log information, etc. from the signal control system module, functional software module, door control unit, etc., so as to realize fault location analysis of the platform screen door control system and the door control unit, operation and maintenance viewing, etc., and has online rapid self-detection and self-diagnosis functions, which reduces the probability of safety hazards and defects during system operation and improves the safety of the screen door when it is opened and closed.

[0043] The functional software module of this embodiment is to receive the door opening / closing commands from the vehicle-mounted system (CC), the local control panel (PSL) and the integrated backup panel (IBP), and perform Boolean operations inside the module to realize priority judgment. When it is judged that the output requirements are met, the functional software module will output the corresponding command to the door control unit (DCU) to control the opening and closing of the platform screen door. At the same time, the interlock release status on the local control panel (PSL) will also be collected, and the interlock release information will be promptly transmitted to the interlocking subsystem and the vehicle-mounted subsystem.

[0044] The network communication module of this embodiment is based on the Transmission Control Protocol / Internet Protocol (TCP / IP) and Railway Safety Communication Protocol (RSSP-I, RSSP-II) supported by the self-developed platform (Better insigma Interlocking Safety targeted Architecture, BiSTAR) to realize communication information interaction with the interlocking subsystem, on-board subsystem, ZC subsystem, and ATS subsystem, and judge the timeliness and validity of data messages from various external subsystems. When the timeliness and validity are met, they are forwarded to the functional software module for functional operation; otherwise, the message is discarded.

[0045] Example 2: Figure 2 As shown, this embodiment provides a platform screen door control method based on full electronic computer interlocking, comprising the following steps: S1: Detect device status and obtain device status signal to determine whether the device is in a preset operating state. If so, proceed to S2; otherwise, proceed to S3.

[0046] In this embodiment, detecting the device state to obtain the device state signal to determine whether the device is in a preset operating state includes the following steps: Detect whether the train enters the platform. If the train enters the platform, detect the train status and the platform screen door status; the train status at least includes the stopped position, speed and direction; the platform screen door status at least includes the switch status, locking status and obstacle judgment of the platform screen door; compare the detected train status and platform screen door status with the preset status to determine whether the equipment is in the preset operating state.

[0047] In order to ensure the safety of the platform screen door switch in this embodiment, before the platform screen door is started or closed, it is necessary to ensure that the train is in the platform and the train door is aligned with the platform screen door. Therefore, it is necessary to detect the train status and the platform screen door status, compare the detected status information with the preset status, and determine whether the signal control system or the control unit issues the control signal to control the platform screen door, so as to ensure to the greatest extent that the platform screen door selects the most efficient control means when controlling.

[0048] S2: Generate a first control signal based on the installed control program, and the functional software module generates a first control instruction based on the first control signal and the device status signal.

[0049] In this embodiment, a first control signal is generated based on the installed control program, and a functional software module generates a first control instruction based on the first control signal and the device status signal, including the following steps: When the equipment is in a preset operating state, the control unit is set to an interlocking state, and the train door is judged to be aligned with the corresponding platform screen door based on the train's stationary position, speed and direction. If aligned, the onboard subsystem sets the door opening and closing operating parameters; A first control signal is generated based on the door opening operation parameters and the door closing operation parameters and sent to a functional software module. The functional software module performs a SIL4 level operation on the first control signal and the device status signal, and generates a first control instruction based on the operation result.

[0050] In order to ensure the safety when controlling the opening and closing of the shielding door, this embodiment adopts SIL4, i.e., safety integrity level 4, as a standard to perform logical analysis on the information detected by the signal control system module to determine whether the shielding door can be safely opened and closed based on the detected information. If the SIL4 standard is met, the shielding door can be safely opened and closed, thereby generating a control signal, which can effectively maintain the safety integrity when controlling the shielding door and effectively prevent or mitigate the consequences of accidents.

[0051] S3: The interlocking state of the control unit is released, the control unit generates a second control signal and sends it to the functional software module, and the functional software module generates a second control instruction based on the second control signal.

[0052] In this embodiment, the interlocking state of the control unit is released, the control unit generates a second control signal and sends it to the functional software module, and the functional software module generates a second control instruction based on the second control signal, including the following steps: If it is detected that the device does not conform to the preset operating state, the corresponding control unit is started according to the current operating state of the device, and the start and stop sequence and start and stop time of the operation buttons of the corresponding control unit are set; The signal generated after the operation button is pressed is integrated into a second control signal and sent to the functional software module. The functional software module performs a SIL4 level operation on the second control signal and generates a second control instruction based on the operation result.

[0053] In order to safely and effectively control the platform shielding door when the signal control system module determines that the train is in an abnormal state or the communication with the signal control system module fails, this embodiment releases the interlocking state of the control unit when an abnormality is detected. During normal operation, the control unit is in an interlocking state, at which time the control unit cannot control the platform shielding door, thereby preventing conflicts in control instructions from affecting the safety of train operation. When an abnormality occurs, the platform shielding door can be controlled through various operating buttons of the control unit, thereby improving the system's ability to respond to emergencies, indirectly improving the control effect of the platform shielding door, and ensuring the personal safety of passengers.

[0054] S4: The shielding door operates based on the first control instruction or the second control instruction. After the operation is completed, the shielding door status is collected and locked, and an operation log is generated and sent to the maintenance detection module in real time.

[0055] In this embodiment, the door opening operation parameters and the door closing operation parameters at least include the door opening start / end speed, door opening start / end acceleration and door opening start / end distance, the door closing start / end speed, door closing start / end acceleration and door closing start / end distance.

[0056] In order to control the opening and closing of the shielding door in this embodiment, it is necessary to set parameters related to the opening and closing action of the shielding door. By setting the speed, acceleration and distance of the shielding door opening and closing, various states of the shielding door during the opening and closing process can be controlled. At the same time, these parameters of the shielding door are monitored, and the current state of the shielding door can be judged according to these parameters, thereby judging whether the shielding door is in normal opening and closing. Fault detection can be performed on the shielding door to reduce the risk of faults of the shielding door.

[0057] In this embodiment, the running state of the equipment is detected by the signal control system, so as to ensure that there will be no safety hazard when controlling the opening and closing of the shielding door, and the safe and orderly operation of the shielding door is ensured. When the running state of the equipment is in the preset state, the opening and closing of the shielding door can be directly controlled according to the control signal issued by the signal control system, and there is no need to send the control signal through each subsystem module in the signal control system module, which improves the speed of sending the control signal, thereby significantly improving the response speed of the shielding door; when the equipment does not conform to the preset state, such as encountering an emergency that causes the train to be delayed or there is an obstacle on the shielding door, the shielding door is no longer controlled by the set control program, and the shielding door is controlled by the manual operation control unit to deal with the emergency, which can maximize the normal operation of the train and the safety of passengers; in the shielding door control process, the running state of the shielding door and other equipment is detected in real time, and the shielding door is locked after the detection is completed to prevent other interference signals from causing the shielding door to be opened or closed by mistake, thereby affecting the normal operation of the train, and ensuring the safety of the train and passengers.

[0058] Example 3: Figure 3 As shown, this embodiment uses the vehicle-mounted subsystem to control the platform shield door to further explain this solution. The control process is as follows: Step 1: After the vehicle-mounted subsystem determines that the conditions are met, it generates a corresponding door opening or closing command.

[0059] Step 2: The network communication reaches the network communication module of the platform screen door control system through network communication. After the network communication module determines that it is satisfied, it forwards it to the functional software module.

[0060] Step 3: After receiving the corresponding door opening or closing command, the functional software module performs the corresponding SIL4 level logic judgment, and then outputs it to the input and output interface module based on the calculation result.

[0061] Step 4: After the input / output interface module receives the corresponding output command, it outputs it to the door control unit (DCU) through the hardwire interface or CAN bus interface to control the opening or closing of the platform screen door.

[0062] Step 5: When the platform screen door is opened or closed, the input and output interface module will collect the switch status of the platform screen door and lock the status, and forward it to the functional software module to complete the closed-loop interaction of the opening or closing of the platform door.

[0063] Example 4: Figure 4 As shown, this embodiment uses the local control panel in the control unit to control the shielding door to further explain this solution. The control process is as follows: Step 1: After the station staff or driver presses the corresponding operation permission on the local control panel, he / she presses the door opening or closing button.

[0064] Step 2: The input and output interface module will collect the status of these buttons, generate corresponding door opening or door closing commands based on the collected door opening or door closing button status, and forward them to the functional software module.

[0065] Step 3: After receiving the corresponding door opening or closing command, the functional software module performs the corresponding SIL4 level logic judgment, and then feeds back to the input and output interface module based on the calculation result; Step 4: After the input / output interface module obtains the output command after calculation, it outputs it to the door control unit (DCU) through the hardwire interface or CAN bus interface to control the opening or closing of the platform shield door.

[0066] Step 5: When the platform screen door is opened or closed, the input and output interface module will collect the switch status of the platform screen door and lock the status, and forward it to the functional software module to complete the closed-loop interaction of the opening or closing of the platform door.

[0067] Through the above embodiments, at least the following conclusions can be drawn: (1) The present invention integrates the control unit and the signal control system into the shielding door control system, and realizes direct information exchange between the signal control system and the control unit and the door control unit through the network communication module and the input / output interface module. When issuing control instructions, there is no need for interaction between the signal control systems, thus realizing an integrated design from logic processing to execution control and status monitoring, eliminating the inherent safety hazards and defects of the relay execution control circuit, and having the characteristics of simple overall structure, fast construction and debugging, and convenient later maintenance, which significantly enhances the reliability and availability of the system and improves the control accuracy and effect of the shielding door.

[0068] The specific implementation described above is a preferred implementation of a cable hidden danger detection method based on environmental pre-sensing technology of the present invention, and it is not intended to limit the specific implementation scope of the present invention. The scope of the present invention includes but is not limited to this specific implementation. All equivalent changes made in accordance with the shape and structure of the present invention are within the protection scope of the present invention.

Claims

1. The platform screen door control system based on full electronic computer interlocking is characterized by: It includes functional software module, network communication module, input and output interface module, signal control system module, control unit and door control unit; The functional software module obtains the first control signal and device status information sent by the signal control system module through the network communication module, generates a first control instruction based on the first control rule and sends it to the door control unit through the input and output interface module; The functional software module obtains the second control signal sent by the control unit through the input-output interface module, generates a second control instruction based on the second control rule, and sends it to the gate control unit through the input-output interface module; The gate control unit performs a corresponding action according to the first control instruction and / or the second control instruction.

2. The platform screen door control system based on full electronic computer interlocking according to claim 1 is characterized in that: The signal control system module includes an interlocking subsystem, an on-board subsystem, a ZC subsystem and an ATS subsystem; The interlocking subsystem is used to collect device status signals and determine whether to release the interlocking state of each device based on the device status signals; The vehicle-mounted subsystem is used to generate a first control signal according to information collected by the interlocking subsystem, the ZC subsystem and the ATS subsystem; The ZC subsystem is used to determine whether the platform screen door is in a normal operating state, and send the determination result to the interlocking subsystem; the ATS subsystem is used to monitor the operation information of the train, and send the operation information of the train to the interlocking subsystem.

3. The platform screen door control system based on full electronic computer interlocking according to claim 1 is characterized in that: The network communication module is connected to the input / output interface module, the functional software module, the maintenance detection module and the signal control system module respectively; the input / output interface module is connected to the control unit, the functional software module and the door control unit respectively; The control unit includes a local control panel and an integrated backup panel; The local control panel and the integrated backup panel are used to release the interlocking state of the local control panel and the integrated backup panel and generate and send a second control signal when the control program set in the signal control system conflicts with the actual equipment state.

4. The platform screen door control system based on full electronic computer interlocking according to claim 1 is characterized in that: The first control rule is that when the functional software module and the network communication module are working normally, a first control instruction is generated based on the first control signal sent by the signal control system module and the device status information and sent to the door control unit to control the operation of the shielding door; The second control rule is that when the input / output interface module detects a failure in the functional software module or / and the network communication module, a second control instruction is generated based on a second control signal sent by the control unit and sent to the door control unit to control the operation of the shielding door.

5. The platform screen door control system based on full electronic computer interlocking according to claim 1 is characterized in that: It also includes a maintenance detection module, which is connected to the functional software module and the input and output interface module respectively; The maintenance detection module receives at least the operation data, operation status and log information from the functional software module and the door control unit, performs fault diagnosis on the shielding door control system and the shielding door based on the above information, locates the fault based on the diagnosis result and sends an alarm signal.

6. A platform screen door control method based on full electronic computer interlocking, applicable to the platform screen door control system based on full electronic computer interlocking according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1. Detect device status and obtain device status signal to determine whether the device is in a preset operating state. If yes, proceed to S2; otherwise, proceed to S3; S2. Generate a first control signal based on the installed control program, and the functional software module generates a first control instruction based on the first control signal and the device status signal; S3, releasing the interlocking state of the control unit, the control unit generates a second control signal and sends it to the functional software module, and the functional software module generates a second control instruction based on the second control signal; S4, the shielding door operates based on the first control instruction or the second control instruction, collects and locks the shielding door status after the operation is completed, generates an operation log and sends it to the maintenance detection module in real time.

7. The platform screen door control method based on full electronic computer interlocking according to claim 6 is characterized in that: In S1, the device status is detected to obtain the device status signal to determine whether the device is in a preset operating state, including the following steps: detecting whether the train enters the platform, and if the train enters the platform, detecting the train status and the platform shield door status; the train status at least includes the stopped position, speed and direction; the platform shield door status at least includes the switch status, locking status and obstacle judgment of the platform shield door; comparing the detected train status and platform shield door status with the preset status to determine whether the device is in the preset operating state.

8. The platform screen door control method based on full electronic computer interlocking according to claim 6, characterized in that: In S2, a first control signal is generated based on the installed control program, and a functional software module generates a first control instruction based on the first control signal and the device status signal, including the following steps: When the equipment is in a preset operating state, the control unit is set to an interlocking state, and the train door is judged to be aligned with the corresponding platform screen door based on the train's stationary position, speed and direction. If aligned, the onboard subsystem sets the door opening and closing operating parameters; A first control signal is generated based on the door opening operation parameters and the door closing operation parameters and sent to a functional software module. The functional software module performs a SIL4 level operation on the first control signal and the device status signal, and generates a first control instruction based on the operation result.

9. The platform screen door control method based on full electronic computer interlocking according to claim 6, characterized in that: In S3, the interlocking state of the control unit is released, the control unit generates a second control signal and sends it to the functional software module, and the functional software module generates a second control instruction based on the second control signal, including the following steps: If it is detected that the device does not conform to the preset operating state, the corresponding control unit is started according to the current operating state of the device, and the start and stop sequence and start and stop time of the operation buttons of the corresponding control unit are set; The signal generated after the operation button is pressed is integrated into a second control signal and sent to the functional software module. The functional software module performs a SIL4 level operation on the second control signal and generates a second control instruction based on the operation result.

10. The platform screen door control method based on full electronic computer interlocking according to claim 8, characterized in that: The door opening operation parameters and door closing operation parameters at least include door opening start / end speed, door opening start / end acceleration and door opening start / end distance, door closing start / end speed, door closing start / end acceleration and door closing start / end distance.

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