Interlocking system logic processing method based on abnormal opening scene of platform door

Abstract

The invention discloses an interlocking system logic processing method based on a platform door abnormal opening scene, and relates to the technical field of interlocking system logic processing in a subway signal system. The platform door abnormal opening protection module is additionally arranged in the interlocking system, detailed logic judgment conditions and parameters are set to be used for judging the abnormal opening state, the reset state and the expression state of the platform door, condition clamping control between relays in an interlocking circuit is simulated through parameter calculation, and interlocking logic is achieved. According to the method, information transmission logic between the interlocking system and an external system and inside the interlocking system is defined, normal opening and closing scenes and abnormal opening scenes of the platform door can be accurately distinguished, personnel or articles can be effectively prevented from entering a tunnel by mistake under the complex condition that the platform door is closed again after being opened abnormally, and the safety of the tunnel is ensured. Effective monitoring and protection of the abnormal opening state of the platform door are achieved, signal protection pertinence is improved, and therefore subway operation safety is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of interlocking system logic processing in subway signal systems, and more particularly to an interlocking system logic processing method based on a platform door abnormal opening scenario. BACKGROUND

[0002] A platform door (PSD) is a continuous barrier installed at the edge of a subway station platform, which separates the train track area and the station waiting area, and is provided with a sliding door that can be controlled to open and close in multiple stages in correspondence with the train door. For the on-board control system, when the platform door is detected to be opened during the train entering and leaving the station process, the train will be controlled to emergency brake immediately. However, when the platform door is abnormally opened and closed instantaneously before the train enters the station, the train will not be able to judge this condition. Therefore, for this situation, a platform door abnormal opening scenario is set, and a platform door abnormal opening protection function is set in this scenario. This function is mainly to prevent people or objects from falling into the tunnel when the platform door is abnormally opened, and to cause personal injury to the personnel who fall into the tunnel when the platform door is closed again.

[0003] The prior art patent with publication number CN116161059A describes a platform door abnormal opening protection device, method, equipment and medium, and describes the linkage logic and information transmission content of each system between the regional controller ZC, the on-board controller CC, the interlocking system, the platform door system and the ATS system when the platform door is abnormally opened.

[0004] This scheme provides a signal and platform door system linkage solution, in which the interlocking system is respectively connected in communication with the regional controller ZC, the on-board controller CC, the platform door system and the ATS system, but for the internal interlocking system, from receiving external system information to outputting the platform door state to other systems, there is a series of safety condition control and logic judgment.

[0005] In the existing interlocking system, only the scenario of normal opening and closing of the platform door is considered, and whether the platform door is closed and locked is taken as a check condition when the signal is opened to realize signal protection, but for the platform door abnormal opening scenario, if the same condition is taken as the internal logic judgment condition, the two scenarios cannot be distinguished and the signal protection in the special scenario cannot be realized. SUMMARY

[0006] In order to overcome the defects existing in the prior art, the application discloses a kind of interlocking system logic processing method based on platform door abnormal opening scene, and the purpose of the application is to solve the technical problem that interlocking system in existing subway signal system cannot effectively process platform door abnormal opening scene.The application adds platform door abnormal opening protection module in interlocking system, and sets detailed logic determination condition and parameter for determining platform door abnormal opening state, reset state and indication state, and realizes interlocking logic by parameter calculation simulation condition card control between each relay in interlocking circuit.The method defines the information transmission logic of interlocking system and external system and interlocking system, can accurately distinguish platform door normal opening and closing and abnormal opening scene, ensures that in the complex situation that platform door is abnormally opened and then closed, it can effectively prevent personnel or goods from entering tunnel, realizes effective monitoring and protection to platform door abnormal opening state, improves signal protection pertinence, to ensure subway operation safety.

[0007] In order to achieve the above object, the technical scheme adopted by the application is: A kind of interlocking system logic processing method based on platform door abnormal opening scene, comprising: platform door abnormal opening protection module is arranged in interlocking system, platform door abnormal opening protection module is provided with platform door abnormal opening state check condition, recovery condition, and is provided with platform door abnormal opening state check parameter, reset parameter, indication parameter based on check condition, recovery condition, platform door abnormal opening protection module carries out interlocking system logic processing using check condition, recovery condition, check parameter, reset parameter, indication parameter to protect platform door abnormal opening.

[0008] Preferably, the platform door abnormal opening state check condition includes single platform door abnormal opening state check condition and section platform door abnormal opening state check condition, and the platform door abnormal opening state check parameter includes single platform door abnormal opening state check parameter and section platform door abnormal opening state check parameter.

[0009] That is, in the application, the condition includes single platform door abnormal opening state check condition, platform door abnormal opening state recovery condition and section platform door abnormal opening state check condition, and the parameter includes single platform door abnormal opening state check parameter, platform door abnormal opening state reset parameter, platform door abnormal opening state indication parameter and section platform door abnormal opening state check parameter. 1, single platform door abnormal opening state check condition Preferably, the single platform door abnormal opening state check condition includes: for single PSD, when all the following scenarios are not met, it is considered that the platform door is in the "abnormal opening state" platform door abnormal opening state check condition is satisfied: Scenario 1: PSD is closed and PSD lock status is permissive; Scenario 2: PSD is bypassed; Scenario 3: CI system outputs valid PSD open command and PSD_Abnormal_Opened_Status_Delay is not expired; Scenario 4: PSD is closed and PSD lock status is prohibitive and PSD manual control authorization from ZC system is permissive; Scenario 5: PSD is closed and PSD lock status is prohibitive and the following conditions are met simultaneously: PSD manual control authorization from ZC system is restrictive; and any one CI section associated with PSD is in real occupancy status; and all CI sections associated with PSD are not occupied by CBTC train.

[0010] 2. PSD abnormal opened status recovery condition Preferably, the PSD abnormal opened status recovery condition comprises: for a single PSD, when it is in "abnormal opened status", the interlocking system recovers the PSD from "abnormal opened status" to "PSD normal status" when the following conditions are met: ① ATS system receives valid "reset PSD abnormal opened" request; ② PSD abnormal opened status check condition is met.

[0011] 3. Section PSD abnormal opened status check condition Preferably, the section PSD abnormal opened status check condition comprises: a station area contains at least one station, a station contains at least one section, for a station section corresponding to a PSD, when any section in the station area where the station section is located has its corresponding PSD in abnormal opened status, it is determined that the station door corresponding to the station section is in "PSD abnormal opened status".

[0012] 4. Single station door abnormal opened status check parameter Preferably, the single station door abnormal opened status check parameter is used to realize condition check of single station door abnormal opened status check condition, and represents the condition judgment result of the interlocking system on the station door abnormal opened status. When the single station door abnormal opened status check condition is not met, the single station door abnormal opened status check parameter is set to valid status, indicating "PSD normal status"; when the single station door abnormal opened status check condition is met, the single station door abnormal opened status check parameter is set to prohibitive status, indicating that the station door is in "abnormal opened status".

[0013] 5. Station door abnormal opening state reset parameter Preferably, the station door abnormal opening state reset parameter is used to realize condition checking of station door abnormal opening state recovery condition, and the station door abnormal opening state reset parameter is set to an effective state when the station door abnormal opening state recovery condition is not satisfied, indicating that the station door abnormal opening state has been reset; and the station door abnormal opening state reset parameter is set to a prohibited state when the station door abnormal opening state recovery condition is satisfied, indicating that the station door abnormal opening state has not been reset.

[0014] 6. Station door abnormal opening state indication parameter Preferably, the station door abnormal opening state indication parameter is set to an effective state when the station door is abnormally opened and the station door abnormal opening state reset parameter is in the prohibited state; and the station door abnormal opening state indication parameter is set to a prohibited state when the station door abnormal opening state is reset and the station door abnormal opening state reset parameter is in the effective state.

[0015] 7. Section station door abnormal opening state checking parameter Preferably, the section station door abnormal opening state checking parameter is used to realize condition checking of section station door abnormal opening state checking condition, and the section station door abnormal opening state checking parameter is set to an effective state when the section station door abnormal opening state checking condition is not satisfied, indicating that all the PSDs of the station corresponding to the station section are in a normal state; and the section station door abnormal opening state checking parameter is set to a prohibited state when the section station door abnormal opening state checking condition is satisfied, indicating that there is a station door in the PSD abnormal opening state in the station area.

[0016] Preferably, the information transmission of the station door abnormal opening protection module includes: For information transmission with external systems: the input interlocking system receives PSD closing and locking information and station door bypass information from the station door system, receives PSD abnormal opening recovery information transmitted by the ATS system, receives PSD manual control authorization and CBTC train occupation information transmitted by the ZC system, and outputs the PSD abnormal opening state after logical judgment processing to the ATS system; For information transmission within the interlocking system: the interlocking system calls the CI section state determined by the interlocking system and calls the PSD abnormal opening state in the logical processing process of signal display and control and train operation mode setting.

[0017] In the present application, PSD represents a station door; ZC represents a zone controller; ATS represents a train automatic monitoring system; CI represents an interlocking system; and CBTC represents a communication-based train automatic control system.

[0018] Preferably, the interlocking system logic processing includes the following steps: S1. Initialize the interlocking system, check the PSD status and set the reset parameters; Preferably, in step S1, during the interlocking system initialization, after the interlocking system receives a valid "power on unlock" command, it checks that the platform door abnormal opening status check condition is not met, that is, the platform door abnormal opening status check parameter is in a valid state, and sets the platform door abnormal opening status reset parameter to a valid state.

[0019] S2. When the platform door is open during normal operation of the interlocking system, check the PSD status. If the PSD is open normally, proceed to step S3. If the PSD is open abnormally, proceed to step S4. S3. The interlocking system performs interlocking logic calculations under the normal opening condition of PSD. Preferably, step S3 includes: under normal operation of the interlocking system, when the platform door is open, if the abnormal opening status check condition of a single platform door is not met, the PSD opens normally. The interlocking system sets the platform door abnormal opening status check parameter of the PSD to the allowed state, and at the same time sets the platform door abnormal opening status indication parameter to the prohibited state. The interlocking system performs interlocking logic calculation under the normal opening condition of the PSD.

[0020] S4. The interlocking system sets the platform door abnormal opening status check parameter to the prohibited state. Preferably, step S4 includes: under normal operation of the interlocking system, when the platform door is open, if the abnormal opening status check condition of a single platform door is met, the abnormal opening status check parameter of that platform door is set to a prohibited state.

[0021] S5, PSD opened abnormally, the recovery conditions are met, set the reset parameters and status parameters; Preferably, step S5 includes: the PSD is in the abnormal opening state of the platform door, the recovery conditions of the abnormal opening state of the platform door are met, the reset parameter of the abnormal opening state of the platform door is set to the prohibited state, and the abnormal opening state indication parameter of the platform door sent to the ATS system is set to the allowed state.

[0022] S6. Reset parameters are in a prohibited state; if the condition is met, the section check parameters are prohibited. Preferably, step S6 includes: resetting the abnormal opening status parameter of a certain PSD platform screen door to a prohibited state, meeting the abnormal opening status check conditions of the section platform screen door, and setting the abnormal opening status check parameter of the section platform screen door to a prohibited state.

[0023] S7. The train running direction module checks the PSD status, controls the train operation, and determines the nature of the route corresponding to the current platform section. If it is an in-station route, proceed to step S8; if it is an out-of-station route, proceed to step S9. Preferably, step S7 includes: in the train running direction setting module, the running direction parameter is used to indicate the running direction of the CBTC train, and its excitation condition includes checking the abnormal opening status of the platform door in the check section. When it is in a prohibited state, the running direction parameter in the same direction cannot be excited normally, ensuring that the CBTC train does not enter the platform area.

[0024] S8. Check the PSD status of the in-station route and open the control signal; Preferably, step S8 includes: for a section within a route that is an in-station route, in the signal display and control module, the train signal relay and the section signal relay check the signal opening permission signal conditions, and check in their excitation conditions that the PSD should be in a closed and locked state, that is, the section platform door abnormal opening state check parameter corresponding to the check condition of the abnormal opening state of the platform door. When the parameter is in a prohibited state, the train signal relay / section signal relay cannot be activated, and the in-station route signal passing through the platform cannot be opened.

[0025] S9. Check PSD status for cross-station route and open control signals; Preferably, step S9 includes: for a section within a route that is an inter-station route, in the signal display and control module, the inter-station block enable relay checks that each section related to the inter-station route in this interlocking area meets the signal opening conditions, and checks that the PSD should be in a closed and locked state in its excitation conditions, that is, the section platform door abnormal opening state check parameter corresponding to the check condition of the check section platform door abnormal opening state. When it is in a prohibited state, the inter-station block enable relay cannot be activated, and the inter-station route signal passing through this platform cannot be opened.

[0026] S10. When any of the scenarios in the single platform door abnormal opening status inspection conditions are met, the inspection parameters are set to be valid. Preferably, step S10 includes: after the platform door is abnormally opened, when any scenario in the single platform door abnormal opening status check conditions is met, the interlocking system sets the single platform door abnormal opening status check parameter to a valid state.

[0027] S11. The operator confirms that the PSD has returned to normal and sends a reset command; Preferably, step S11 includes: after the operator confirms that the platform door can return to normal after being abnormally opened, the operator performs the PSD abnormal opening reset, and the ATS system transmits the PSD abnormal opening reset command to the interlocking system.

[0028] S12. If the recovery conditions are met, set the reset parameters to be valid and update the status parameters; Preferably, step S12 includes: the condition of restoring the platform door from "abnormally opened state" to "PSD normal state" in the platform door abnormal opening state recovery condition is met, the interlocking system sets the platform door abnormal opening state reset parameter to the valid state, and at the same time sets the platform door abnormal opening state indication parameter sent to the ATS system to the prohibited state.

[0029] S13. If the conditions for checking the abnormal opening status of the platform screen door in section S13 are not met, set its check parameters to be valid, and the abnormal opening scenario of the platform screen door will be restored to the normal state.

[0030] Preferably, step S13 includes: if the judgment condition in the abnormal opening status check condition of the platform door in the section does not meet the condition, the abnormal opening status check parameter of all platform sections in the platform area is set to a valid state; if the check condition for abnormal opening of the platform door in steps S10-S12 is passed, the interlocking system is restored from the abnormal opening scenario of the platform door to the normal state.

[0031] The beneficial effects of this invention are: 1. This solution focuses on the special scenario of abnormal opening of platform screen doors, and provides a specific logic processing method for the interlocking system, which breaks through the limitation of existing technology that only uses the closed and locked state of platform screen doors as the internal logic judgment condition.

[0032] 2. This solution can accurately distinguish between normal opening and closing scenarios and abnormal opening scenarios of platform screen doors through parameter settings and condition judgments, avoiding the problem that existing technologies cannot distinguish between the two types of scenarios, thereby achieving more targeted signal protection in the case of abnormal opening of platform screen doors.

[0033] 3. This solution delves into the internal workings of the interlocking system, focusing on the interlocking logic, and provides a concrete implementation method for the interlocking protection mechanism. By receiving external information and executing internal logical judgments, it can prevent personnel or objects from accidentally entering the tunnel in complex situations where platform doors are abnormally opened and then closed again, thus avoiding personal injury and ensuring the safety and stability of trains entering and leaving the station. Attached Figure Description

[0034] Figure 1 This is a logic diagram of information transmission in the platform door abnormal opening protection scenario of the interlocking system of the present invention; Figure 2 The interlocking logic flowchart for the platform door abnormal opening protection function of the present invention is shown below. Figure 3 The following is an example of a station layout diagram for this invention. Detailed Implementation

[0035] The following will provide a clear and complete description of the concept, specific structure, and technical effects of the present invention in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of the present invention.

[0036] Example 1 In fully automated operation scenarios, when a platform screen door (PSD) opens abnormally, the signaling system needs to add alarm prompts and safety protection functions for this state. If the signaling system determines that the platform screen door has opened abnormally and then closed again, trains are not allowed to enter the platform until the abnormal opening status is manually confirmed to be restored. Therefore, for platform screen door abnormal opening scenarios, the interlocking system adds a separate interlocking logic processing: the transmission information between the interlocking system and the platform screen door system remains consistent with the existing scheme, only transmitting the status information of whether the platform screen door is open or closed and forwarding the opening and closing commands. However, within the interlocking system, a platform screen door abnormal opening protection module is added, and the information processing of this module is completed based on the internal logic calculation results.

[0037] 1. Internal interlocking system for determining and restoring abnormal platform screen door opening conditions Condition 1: For platform screen doors in an abnormally open state, the interlocking system determines the abnormal opening criteria as follows: ① No train on the platform track, but the platform screen door is open; ② A train is on the platform track, and the signaling system determines the platform screen door is abnormally open. Therefore, for a single PSD (Platform Screen Defect), if none of the following scenarios are met, the abnormal opening condition check is considered met, i.e., the platform screen door is in an "abnormally open state": Scenario 1: The PSD is closed and locked, but the lock state is enabled; Scenario 2: PSD is bypassed; Scenario 3: The Cl system outputs a valid PSD door opening command and the PSD_Abnormal_Opened_Status_Delay timer has not ended; Scenario 4: The PSD is closed and locked in a prohibited state, and the manual control authorization for the platform door received from ZC is in a permitted state; Scenario 5: The PSD is closed and locked in a prohibited state, and simultaneously meets the following conditions: The authorization for manual control of the platform screen doors received from ZC is in a restricted state; Furthermore, any CI segment associated with the PSD is in a state of actual occupancy; Furthermore, none of the CI segments associated with PSD were occupied by CBTC vehicles.

[0038] Condition 2: For a single PSD, when it is in the "abnormally opened state", the interlocking system will restore the PSD from the "abnormally opened state" to the "normal PSD state" if all of the following conditions are met: Condition ①: ATS receives a valid "Reset PSD Abnormal Open" request (the "Reset PSD Abnormal Open" request is a safety-related operation, and its safety is guaranteed by the operator); Condition ②: The conditions for checking the abnormal opening status of the platform door are met.

[0039] Condition 3: A platform area may contain multiple platforms and multiple platform sections. For a platform section corresponding to a PSD, if any section in the platform area where the platform section is located has a PSD in an abnormally open state, it is determined that the platform door corresponding to the platform section is in an "abnormally open PSD state".

[0040] 2. Parameter settings for the platform door abnormal opening protection module In the platform door abnormal opening protection module, different parameters are set, and the condition control between each relay in the simulation interlocking circuit is realized by calculating the parameters.

[0041] (1) For each platform screen door device: a. Set the platform screen door abnormal opening status check parameter (GZKJC, used to implement condition 1 condition check, representing the interlocking internal condition judgment result for the platform screen door abnormal opening status. When the condition 1 check condition is not met, the parameter is set to the valid state, indicating "PSD normal state"; when the check condition is met, the parameter is set to the prohibited state, indicating that the platform screen door is in the "abnormally opened state"). b. Platform door abnormal opening status reset parameter (FGZK, used to implement condition 2 condition check. When any condition 2 condition is not met, the parameter is set to the valid state, indicating that the platform door abnormal opening status has been reset; when all check conditions are met, the parameter is set to the prohibited state, indicating that the platform door abnormal opening status has not been reset). c. Platform door abnormal opening status indication parameter (GZK, repeated platform door abnormal opening status reset parameter. When the platform door is abnormally opened and the platform door abnormal opening status reset parameter is in the prohibited state, the parameter is set to the valid state; when the platform door abnormal opening status is reset and the platform door abnormal opening status reset parameter is in the valid state, the parameter is set to the prohibited state).

[0042] (2) For all platform sections of the platform where the platform door is located, set the platform door abnormal opening status check parameter (GZKCHECK, used to implement the condition 3 condition check. If the condition 3 check condition is not met, set the parameter to the valid state, indicating that all PSDs of the platform corresponding to the platform section are in the normal state; if the check condition is met, set the parameter to the prohibited state, indicating that there are platform doors in the platform area in the "PSD abnormal opening state").

[0043] 3. Information transmission of the platform door abnormal opening protection module The information transmission logic of the platform door abnormal opening protection module in the interlocking system is as follows: Figure 1 As shown. Regarding information transmission with external systems: the input interlocking system receives PSD closed and locked information and platform door bypass information from the platform screen door system; it also receives PSD abnormal opening recovery information from the ATS system; and it receives PSD manual control authorization and CBTC car occupancy information from the ZC system. The output interlocking system outputs the PSD abnormal opening status, processed by logic judgment, to the ATS system. Regarding information transmission within the interlocking system: the interlocking system calls the CI section status determined internally and invokes the PSD abnormal opening status during the logic processing of signal display and control, and train operation mode settings.

[0044] 4. Interlocking Logic for Platform Door Abnormal Opening Protection Function Based on the conditions in points 1, 2, and 3, such as Figure 2 As shown, the overall processing logic of the method of the present invention includes the following steps: Step S1: During the interlocking system initialization, after the system receives a valid "power on unlock" command, it checks that the platform door abnormal opening status check condition is not met, that is, the platform door abnormal opening status check parameter is in a valid state (i.e., PSD is normal), and sets the platform door abnormal opening status reset parameter to a valid state. Step S2: Under normal operation of the interlocking system, when the platform door is open, if the platform door abnormal opening status check condition in condition 1 is not met, the interlocking system sets the platform door abnormal opening status parameter of the PSD to the allowed state (PSD normal), and sets the platform door abnormal opening status indication parameter to the prohibited state (PSD normal). Step S3: The interlocking system performs interlocking logic calculations under the normal opening condition of the PSD.

[0045] Step S4: Under normal operation of the interlocking system, when the platform door is open, if the platform door abnormal opening status check condition in condition 1 is met, the CI system sets the platform door abnormal opening status parameter of the PSD to the prohibited state (PSD abnormal opening). Step S5: PSD is in the abnormal opening state of the platform screen door. The abnormal opening recovery condition of the platform screen door in condition 2 is met. Set the abnormal opening state reset parameter of the platform screen door to the prohibited state. At the same time, set the abnormal opening state indication parameter of the platform screen door sent to the ATS system to the allowed state (PSD abnormal opening). Step S6: The platform door abnormal opening status reset parameter of a certain PSD is set to the prohibited state, the check condition of condition 3 is met, and the platform door abnormal opening status check parameter is set to the prohibited state. Step S7: In the train running direction setting module, the running direction parameter is used to indicate the running direction of the CBTC train. In its excitation conditions, the platform door abnormal opening status check parameter (GZKCHECK) is checked. When it is in the prohibited state, the running direction parameter in the same direction cannot be excited normally to ensure that the CBTC train does not enter the platform area.

[0046] Step S8: For the section within the station where the platform is an in-station route, in the signal display and control module, the train signal relay (when energized, the signal opens green, yellow, and green-yellow light signals) and the section signal relay (when energized, the section signal opens the permission signal) check the signal opening permission signal conditions. In its energization conditions, it is checked that the PSD should be in the closed and locked state, which corresponds to checking the platform door abnormal opening status check parameter (GZKCHECK) of condition 3. When this parameter is in the prohibited state, the train signal relay / section signal relay cannot be activated, and the in-station route signal passing through this platform cannot be opened.

[0047] Step S9: For the section within the route of the platform section which is an overpass route, in the signal display and control module, the inter-station block enable relay checks that each section related to the overpass route in this interlocking area meets the signal opening conditions. In its excitation conditions, it checks that the PSD should be in the closed and locked state, that is, it checks the platform door abnormal opening status check parameter (GZKCHECK) of condition 3. When it is in the prohibited state, the inter-station block enable relay cannot be activated, and the overpass route signal passing through this platform cannot be opened.

[0048] Step S10: After the platform door is abnormally opened, if any scenario in condition 1 is met, the interlocking system sets the platform door abnormal opening status check parameter to a valid state.

[0049] Step S11: After the operator confirms that the platform door can return to normal after being abnormally opened, the operator performs the PSD abnormal opening reset, and the ATS system transmits the PSD abnormal opening reset command to the interlocking system.

[0050] Step S12: At this time, the condition in condition 2 to restore the platform door from "abnormally opened state" to "PSD normal state" is met. The interlocking system sets the platform door abnormal opening reset parameter to the valid state, and at the same time sets the platform door abnormal opening status indication parameter sent to the ATS system to the prohibited state (PSD normal).

[0051] Step S13: If the judgment condition in condition 3 is not met, the abnormal opening status check parameter for all platform sections in this platform area is set to valid. If the check conditions for abnormal opening of platform doors in steps S10-S12 are passed, the interlocking system returns to normal from the abnormal opening scenario of platform doors.

[0052] Example 2 refer to Figure 3 As exemplified by the station type, those skilled in the art can easily understand the implementation logic of the interlocking protection in the scenario of abnormal opening of the platform screen door (the scope of protection of this patent is not limited to this). Figure 3 The aforementioned station type). Figure 3 In this station type, each platform has a corresponding PSD device. T3 and T4 are different platform sections within the same platform area. The following will combine... Figure 2 The logic flowchart illustrates the specific implementation of this technical solution: S1: Interlocking system initialization Situation: During the interlocking system initialization, the system received a valid "power-on unlock" command.

[0053] Operation: Check the PSD status of platform sections T3 and T4, and find that the PSD status is normal (i.e., PSD is normal). Therefore, set the platform door abnormal opening status reset parameter of platform sections T3 and T4 to the valid state.

[0054] S2: Normal operation, checking PSD status and setting parameters with the door open. Status: The interlocking system is operating normally, and the PSD doors in the T3 and T4 platform sections are in the open position.

[0055] Operation: Check the abnormal opening status check conditions for platform screen doors in platform sections T3 and T4 in condition 1, and find that they are not met (i.e., PSD is normal). Therefore, set the abnormal opening status parameter of platform screen doors in platform sections T3 and T4 to the allowed state (PSD is normal), and set the abnormal opening status indication parameter of platform screen doors to the prohibited state (PSD is normal).

[0056] S3: Interlocking logic calculation under normal PSD opening condition Status: The PSD doors in the T3 and T4 platform sections are in normal open position.

[0057] Operation: The interlocking system performs relevant interlocking logic calculations based on the normal door opening status of the PSD to ensure that other equipment and systems can operate normally.

[0058] S4: PSD file opens abnormally while the door is open; disable it. Situation: The interlocking system is operating normally, and the PSDs of the T3 and T4 platform sections are in the open state, but the abnormal opening status check condition of the T3 platform section is met in condition 1 (i.e., the PSD is abnormally open).

[0059] Operation: The CI system sets the abnormal opening status parameter of the platform screen door of the PSD in the T3 platform section to the prohibited state (PSD abnormal opening).

[0060] S5: PSD opened abnormally, recovery conditions met, set reset parameters. Situation: The PSD of platform section T3 is in an abnormal open state, and the recovery condition of abnormal opening of platform door in condition 2 is met.

[0061] Operation: Set the platform door abnormal opening status reset parameter of T3 platform section to the prohibited state, and at the same time set the platform door abnormal opening status indication parameter of T3 sent to the ATS system to the allowed state (PSD abnormal opening).

[0062] S6: Reset parameter disabled, condition met, setting check parameter valid. Situation: The reset parameter for the abnormal opening status of the platform screen door of the T3 platform section PSD is set to the prohibited state, and the check condition of condition3 is met.

[0063] Operation: Set the platform door abnormal opening status check parameter for platform section T3 to the valid state. At the same time, since T4 and T3 belong to the same platform area, when the PSD of platform section T3 is abnormally opened, the platform door abnormal opening status check parameter for platform section T4 is also switched to the valid state.

[0064] S7: The direction-of-run module checks the PSD status and controls the train's operation. Situation: In the train running direction setting module, the running direction parameter is used to indicate the running direction of CBTC trains.

[0065] Operation: Check the abnormal opening status of the platform doors in the T3 and T4 platform sections in the excitation conditions (GZKCHECK). It was found that the parameter is in a prohibited state. Therefore, the running direction parameter in the same direction cannot be energized normally to ensure that the CBTC train does not enter the T3 platform section.

[0066] S8: Check PSD status for in-station route and open control signal. Situation: The S1-S2 access route within the station involves the T3 and T4 platform sections.

[0067] Operation: In the signal display and control module, when the train signal relay and the section signal relay check the signal opening permission conditions, the PSD of the platform section should be in a closed and locked state. That is, when the PSD corresponding to the T3 platform section is in an abnormal open state, when processing route S1-S2, check the abnormal open state check parameter (GZKCHECK) of the platform doors of T3 and T4. If the parameter is found to be in a prohibited state, the train signal relay of the route starting signal S1 cannot be activated, and the station route S1-S2 signal passing through the T3 platform section cannot be opened.

[0068] S9: Cross-site route check PSD status, control signal enabled. Situation: The cross-station route S4-S5 involves the T3 and T4 platform sections.

[0069] Operation: In the signal display and control module, when the inter-station block enable relay checks that all sections related to the interlocking zone and cross-station routes meet the signal opening conditions, it checks that the PSD of the platform section should be in a closed and locked state. That is, when the PSD corresponding to the T3 platform section is in an abnormal open state, when processing routes S1-S2, the abnormal open state check parameter (GZKCHECK) of the T3 and T4 platform doors is checked. If the parameter is found to be in a prohibited state, the inter-station block enable relay cannot be activated, and the cross-station route S4-S5 signal passing through the T3 platform section cannot be opened.

[0070] S10: After an abnormal opening, if condition 1 is met, the set check parameters are valid. Situation: After the PSD in the T3 platform section is opened abnormally, if it meets any of the scenarios in condition 1.

[0071] Operation: Set the platform door abnormal opening status check parameter of the T3 platform section to valid.

[0072] S11: The operator confirms that the PSD has returned to normal and sends a reset command. Situation: The operator confirmed that the PSD in the T3 platform section could return to normal after being abnormally opened.

[0073] Operation: The PSD abnormal opening and reset is initiated, and the ATS system transmits the PSD abnormal opening and reset command to the interlocking system.

[0074] S12: Recovery conditions met, reset parameters enabled, status parameters updated. Condition: The condition in condition 2, which restores the PSD of the T3 platform section from "abnormally opened state" to "normal PSD state", is met.

[0075] Operation: The interlocking system sets the platform door abnormal opening reset parameter of the T3 platform section to the valid state, and at the same time sets the platform door abnormal opening status indication parameter sent to the ATS system to the prohibited state (PSD normal).

[0076] S13: Judgment conditions are not met, check parameters are valid. Circumstances: The decision condition in condition 3 is not met.

[0077] Operation: Set the abnormal opening status check parameters for all platform screen doors in the T3 and T4 platform sections to the valid state. If the check conditions for abnormal opening of platform screen doors in S10-S12 are passed, the interlocking system will restore the normal state from the abnormal opening scenario of platform screen doors.

[0078] Compared with the prior art, this application has the following differences, listed in descending order of their importance to the purpose of the invention: 1. Focus on logic processing for specific scenarios: The key difference is that existing interlocking systems mainly focus on the normal opening and closing of platform screen doors, while this application focuses on the special scenario of abnormal opening of platform screen doors and provides specific logical processing methods within the interlocking system.

[0079] Purpose and impact of the invention: This difference breaks through the limitation of the prior art which only uses the closed and locked state of the platform door as the internal logic judgment condition, and is the core innovation of this application.

[0080] 2. Achieve precise scenario differentiation and targeted protection: Key difference: Through a specific logic processing method, this application proposal can accurately distinguish between normal opening and closing scenarios and abnormal opening scenarios of platform doors, avoiding the problem that existing technologies cannot distinguish between the two types of scenarios.

[0081] Purpose and impact of the invention: This difference enhances the targeting of signal protection and effectively ensures the safety of subway operations, which is the key to achieving the technical objectives of this application.

[0082] 3. Add a platform door abnormal opening protection module: The difference is that an abnormal opening protection module for platform doors is added inside the interlocking system. It completes information processing based on the internal logic calculation results, including the determination, reset and indication of the abnormal opening status of the platform doors.

[0083] Purpose and impact of the invention: This difference improves the signal protection system that links the signal and platform screen door systems, ensuring that personnel or objects are prevented from accidentally entering the tunnel in complex situations where platform screen doors are opened and closed abnormally. This is an important means for achieving the technical effect of this application.

[0084] 4. Detailed parameter settings and scene coverage: The difference lies in the fact that for each platform door device and all platform sections, corresponding parameters (such as GZKJC, FGZK, GZK, etc.) are set, the implementation logic of each parameter is clarified, and then the condition control of abnormal opening of platform doors in multiple scenarios can be achieved through parameter calculation.

[0085] Purpose and impact of the invention: This distinction ensures the accuracy of interlocking logic processing in multi-station and multi-station section scenarios, and is a specific implementation method for achieving the technical solution.

[0086] In summary, the key points and areas to be protected in this application are mainly focused on logic processing for special scenarios, achieving accurate scenario differentiation and targeted protection, adding a platform door abnormal opening protection module, and detailed parameter settings and processing.

[0087] The embodiments of the present invention have been described in detail above, but the present invention is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalents or substitutions are all included within the scope defined by the claims of the present invention.

Claims

1. A logic processing method for an interlocking system based on an abnormal opening scenario of a platform door, characterized in that, include: An abnormal opening protection module for platform screen doors is installed within the interlocking system. This module includes abnormal opening status check conditions and recovery conditions for platform screen doors. Based on these conditions, it also includes abnormal opening status check parameters, reset parameters, and indication parameters. The module utilizes these conditions to perform interlocking system logic processing to protect against abnormal opening of platform screen doors.

2. The interlocking system logic processing method based on the abnormal opening scenario of a platform door as described in claim 1, characterized in that, The platform screen door abnormal opening status inspection conditions include single platform screen door abnormal opening status inspection conditions and section platform screen door abnormal opening status inspection conditions, wherein: The conditions for checking the abnormal opening status of a single platform screen door include: For a single PSD, if none of the following scenarios are met, the conditions for checking the abnormal opening status of the platform screen door are considered met, and the platform screen door is in an "abnormally open state": Scenario 1: The PSD is closed and locked, but the lock state is enabled; Scenario 2: PSD is bypassed; Scenario 3: The CI system outputs a valid platform door opening command, but the platform door is in an abnormal open state and the delay timer has not ended; Scenario 4: The PSD is closed and locked in a prohibited state, and the manual control authorization for the platform door received from the ZC system is in a permitted state; Scenario 5: The PSD is closed and locked in a prohibited state, and simultaneously meets the following conditions: The platform screen door manual control authorization received from the ZC system is in a restricted state; Furthermore, any CI segment associated with the PSD is in a state of actual occupancy; Furthermore, none of the CI segments associated with PSD were occupied by CBTC vehicles; The conditions for checking the abnormal opening status of the platform screen door in the section include: a platform area contains at least one platform, and a platform contains at least one platform section. For the platform section corresponding to the PSD, when any section in the platform area where the platform section is located has a PSD in an abnormal opening state, it is determined that the platform screen door corresponding to the platform section is in the "PSD abnormal opening state".

3. The interlocking system logic processing method based on the abnormal opening scenario of a platform door as described in claim 1, characterized in that, The conditions for restoring the abnormally opened state of the platform screen door include: For a single PSD (Power Segment Deposit Box), when it is in the "abnormally opened state," the interlocking system will restore the PSD from the "abnormally opened state" to the "normal PSD state" if all of the following conditions are met: ①The ATS system received a valid "Reset PSD abnormal open" request; ②The conditions for checking the abnormal opening status of the platform door are met.

4. The interlocking system logic processing method based on the abnormal opening scenario of a platform door as described in claim 1, characterized in that, The platform screen door abnormal opening status check parameters include individual platform screen door abnormal opening status check parameters and section platform screen door abnormal opening status check parameters, wherein: The single platform screen door abnormal opening status check parameter is used to check the conditions for the single platform screen door abnormal opening status check. It represents the condition judgment result of the interlocking internally on the abnormal opening status of the platform screen door. When the conditions for the single platform screen door abnormal opening status check are not met, the single platform screen door abnormal opening status check parameter is set to a valid state, indicating "PSD normal state"; when the conditions for the single platform screen door abnormal opening status check are met, the single platform screen door abnormal opening status check parameter is set to a prohibited state, indicating that the platform screen door is in an "abnormally opened state". The platform screen door abnormal opening status check parameter is used to check the conditions for abnormal opening status of platform screen doors in a section. If the conditions for abnormal opening status of platform screen doors in a section are not met, the platform screen door abnormal opening status check parameter is set to a valid state, indicating that all PSDs of the platform corresponding to this platform section are in a normal state; if the conditions for abnormal opening status of platform screen doors in a section are met, the platform screen door abnormal opening status check parameter is set to a prohibited state, indicating that there are platform screen doors in this platform area in a "PSD abnormal opening state".

5. The interlocking system logic processing method based on the abnormal opening scenario of a platform door as described in claim 1, characterized in that, The platform door abnormal opening state reset parameter is used to check the conditions for restoring the platform door abnormal opening state. When the conditions for restoring the platform door abnormal opening state are not met, the platform door abnormal opening state reset parameter is set to a valid state, indicating that the platform door abnormal opening state has been reset; when the conditions for restoring the platform door abnormal opening state are met, the platform door abnormal opening state reset parameter is set to a prohibited state, indicating that the platform door abnormal opening state has not been reset.

6. The interlocking system logic processing method based on the abnormal opening scenario of a platform door as described in claim 1, characterized in that, The platform door abnormal opening status indication parameter is set to an active state when the platform door is abnormally opened and the platform door abnormal opening status reset parameter is in an active state; and to a prohibited state when the platform door abnormal opening status is reset and the platform door abnormal opening status reset parameter is in an active state.

7. The interlocking system logic processing method based on the abnormal opening scenario of a platform door as described in claim 1, characterized in that, The information transmission of the platform door abnormal opening protection module includes: Regarding information transmission with external systems: The input interlocking system receives PSD closed and locked information and platform door bypass information from the platform door system, receives PSD abnormal opening recovery information from the ATS system, and receives PSD manual control authorization and CBTC vehicle occupancy information from the ZC system. The output interlocking system outputs the PSD abnormal opening status after logical judgment to the ATS system. For information transmission within the interlocking system: The interlocking system calls the CI section status determined internally and calls the PSD abnormal open status during the logical processing of signal display and control and train operation mode settings.

8. The interlocking system logic processing method based on the abnormal opening scenario of a platform door as described in claim 1, characterized in that, The interlocking system logic processing includes the following steps: S1. Initialize the interlocking system, check the PSD status and set the reset parameters; S2. When the platform door is open during normal operation of the interlocking system, check the PSD status. If the PSD is open normally, proceed to step S3. If the PSD is open abnormally, proceed to step S4. S3. The interlocking system performs interlocking logic calculations under the normal opening condition of PSD. S4. The interlocking system sets the platform door abnormal opening status check parameter to the prohibited state. S5, PSD opened abnormally, the recovery conditions are met, set the reset parameters and status parameters; S6. Reset parameters are in a prohibited state; if the condition is met, the section check parameters are prohibited. S7. The train running direction module checks the PSD status, controls the train operation, and determines the nature of the route corresponding to the current platform section. If it is an in-station route, proceed to step S8; if it is an out-of-station route, proceed to step S9. S8. Check the PSD status of the in-station route and open the control signal; S9. Check PSD status for cross-station route and open control signals; S10. When any of the scenarios in the single platform door abnormal opening status inspection conditions are met, the inspection parameters are set to be valid. S11. The operator confirms that the PSD has returned to normal and sends a reset command; S12. If the recovery conditions are met, set the reset parameters to be valid and update the status parameters; S13. If the conditions for checking the abnormal opening status of the platform screen door in section S13 are not met, set its check parameters to be valid, and the abnormal opening scenario of the platform screen door will be restored to the normal state.

9. The interlocking system logic processing method based on the abnormal opening scenario of a platform door as described in claim 8, characterized in that, Step S7 includes: In the train running direction setting module, the running direction parameter is used to indicate the running direction of the CBTC train. In its excitation conditions, the abnormal opening status check parameter of the platform door in the check section is checked. When it is in the prohibited state, the running direction parameter in the same direction cannot be excited normally, ensuring that the CBTC train does not enter the platform area.

10. The interlocking system logic processing method based on the abnormal opening scenario of a platform door as described in claim 8, characterized in that, Step S8 includes: For the section of the platform that is an in-station route, in the signal display and control module, the train signal relay and the section signal relay check the signal opening permission signal conditions, and check in its excitation conditions that the PSD should be in the closed and locked state, that is, the section platform door abnormal opening state check parameter corresponding to the check condition of the abnormal opening state of the platform door. When the parameter is in the prohibited state, the train signal relay / section signal relay cannot be activated, and the in-station route signal passing through the platform cannot be opened; Step S9 includes: For the section within the route of the platform section which is an inter-station route, in the signal display and control module, the inter-station block enable relay checks that each section related to the inter-station route in this interlocking area meets the signal opening conditions. In its excitation conditions, it checks that the PSD should be in the closed and locked state, that is, the abnormal opening state check parameter of the platform door corresponding to the check condition of the platform door. When it is in the prohibited state, the inter-station block enable relay cannot be activated, and the inter-station route signal passing through this platform cannot be opened.

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