Rail transit full-line screening-free method and system based on axle counting state monitoring

Abstract

The application discloses a track traffic full-line screening-free method and system based on axle counting state monitoring, and when an abnormality of an entrance of a regional controller is monitored, a fault report is sent and a communication state of a computer interlocking subsystem is reported, if a communication fault occurs between the computer interlocking subsystem and the regional controller, since a data storage unit and an axle counting subsystem establish communication, the data storage unit can acquire a physical section state sent by the axle counting subsystem and process the same, determine an occupied / idle state of the entrance monitoring axle counting, the data storage unit performs entrance monitoring determination, and a full-line screening-free flag is sent to the regional controller, and after the communication between the computer interlocking subsystem and the regional controller is restored, the regional controller is enabled to quickly screen a fault train. Through the communication between the data storage unit and the axle counting subsystem and the monitoring of the state of the entrance axle counting, the normal state of the full-line screening-free flag is maintained when the communication fault occurs between the computer interlocking subsystem and the regional controller, and the availability of the full-line screening-free function is improved.

Description

Technical Field

[0001] This application relates to the field of rail transit technology, and more specifically, to a screening-free method and system for the entire rail transit line based on axle count condition monitoring. Background Technology

[0002] In the fully automated signaling system of regional rail transit, the information transmission between the ground control system and the onboard system enables the moving block function. This system mainly includes a Train Operation Automation System (TIAS), a Zone Controller (ZC), a Data Storage Unit (DSU), a Computer Interlocking System (CI), and a Vehicle Control System (VOBC). The Zone Controller (ZC) is responsible for receiving real-time location information from the VOBC and track status information reported by the CI, and calculating the Movement Authorization (MA) for the train based on the data version provided by the DSU and temporary speed limits across the entire line. Once the VOBC receives the MA from the ZC, the train can upgrade to Communication-Based Train Control (CBTC) mode. To ensure safety, the ZC needs to confirm that there are no suspicious vehicles ahead of the train that have not reported their location when calculating the MA. However, in some cases, such as communication failures or train self-positioning failures, the ZC may lose train location information, making traditional screening methods inefficient.

[0003] To address this, the system introduced a "full-line screening exemption" function to help faulty trains recover quickly and resume normal operation. This function relies on the participation of the DSU (Digital Train Controller), and one of its activation conditions is that the ZC (Train Control Center) receives a full-line screening exemption flag issued by the DSU. The DSU needs to verify the following conditions: First, the DSU maintains normal communication with all mainline ZCs; second, the entrance monitoring ZC reports normal entrance monitoring to the DSU; third, the communication train list stored by the DSU is consistent with the communication train lists reported by all mainline ZCs; fourth, if a mainline ZC reports a change in the screening exemption sequence number, the DSU cycle number for the current period is cached, and the DSU cycle numbers within the GAL (Gas Alternate Range) reported by other mainline ZCs should be greater than or equal to the cached DSU cycle number.

[0004] However, in practical applications, it has been found that when communication between the entrance monitoring center (ZC) and the control center (CI) malfunctions, the guidance safety handling mechanism can cause the entrance monitoring center (ZC) to misjudge abnormal occupancy of the entrance axle counter, even though the actual axle counter status may be idle. This CI communication anomaly prevents the execution of the full-line screening exemption function, reducing its actual effectiveness and reliability. The problem with existing technology is that the false alarms caused by the entrance monitoring center (ZC) due to CI communication anomalies prevent the control unit (DSU) from properly issuing the full-line screening exemption flag, thus rendering the subsequent full-line screening exemption function ineffective and affecting the overall system's operational efficiency and safety. Therefore, solving this problem is crucial for improving the stability and reliability of fully automated rail transit systems. Summary of the Invention

[0005] The purpose of this application is to overcome the shortcomings of existing technologies and provide a method and system for eliminating screening along the entire rail transit line based on axle counting status monitoring. By utilizing direct communication between the data storage unit and the axle counting subsystem, combined with monitoring the axle counting status at the entrance, it ensures that the normal status of the screening-free signs along the entire line can be maintained even in the event of a communication failure between the computer interlocking subsystem and the area controller, thereby improving the availability of the screening-free function along the entire line.

[0006] The objective of this application is achieved through the following technical solution:

[0007] In a first aspect, this application proposes a method for screening-free operation of an entire rail transit line based on axle counting condition monitoring. The method is applied to a screening-free rail transit line system, which includes an axle counting subsystem and a computer interlocking subsystem, a zone controller, and a data storage unit connected sequentially. The method includes:

[0008] When the area controller detects an abnormality at the entrance, it sends a fault report to the data storage unit and reports the communication status of the computer interlocking subsystem. If the computer interlocking subsystem and the area controller experience a communication failure, the data storage unit will determine the occupancy / idleness of the entrance monitoring axis.

[0009] The data storage unit establishes communication with one or more axle counting subsystems, and then verifies the legality of the information sent by the axle counting subsystem. If the number of communication interruption cycles reaches a preset cycle value, all axle counting sections associated with the axle counting subsystem are considered to be in a sluggish state. If the number of continuously received illegal data exceeds the preset cycle value, all axle counting sections associated with the axle counting subsystem are in a sluggish state.

[0010] The data storage unit acquires and processes the physical segment status sent by the axle counting subsystem. A physical segment contains multiple axle counting segments, and determines the occupancy / idle status of the entry monitoring axle.

[0011] The data storage unit performs entry monitoring and judgment based on the occupied / idle status. If there are no abnormalities, it sends the full-line screening exemption flag to the area controller. When the computer interlocking subsystem and the area controller resume communication, the area controller can quickly screen the faulty train.

[0012] In one possible implementation, the method further includes:

[0013] In the event of a communication interruption between the data storage unit and the area controller, the data storage unit will set all axle counters within the area controller's scope to an abnormal occupancy state.

[0014] In one possible implementation, the data storage unit acquires and processes the physical segment status sent by the axle counting subsystem to determine the occupancy / idle status of the inlet monitoring axle, including:

[0015] The axle counting subsystem provides the data storage unit with occupancy / idle status information for multiple physical segments;

[0016] The data storage unit queries all physical sections related to the entrance monitoring axle based on the information obtained from the area controller, and matches the occupancy / idle status information of the corresponding physical section from the axle counting subsystem. A physical section can contain multiple axle counting sections to determine the occupancy / idle status of the entrance monitoring axle.

[0017] In one possible implementation, the step of the data storage unit performing entry monitoring and determination based on the physical segment occupancy / idle status includes:

[0018] When the area controller reports no abnormalities in the entrance monitoring, the data storage unit determines that there are no abnormalities in the entrance monitoring.

[0019] When the area controller reports an entry monitoring anomaly, if the computer interlocking subsystem communicating with the area controller is functioning normally, the data storage unit determines that the entry monitoring is abnormal.

[0020] When the area controller reports an entry monitoring anomaly, if the computer interlocking subsystem communicating with the area controller has a communication failure, and the data storage unit confirms that the relevant physical segment sent by the axle counting subsystem is occupied, then the data storage unit determines that the entry monitoring is abnormal.

[0021] When the area controller reports an abnormality in entrance monitoring, if the computer interlocking subsystem communicating with the area controller has a communication failure, and the data storage unit confirms that the relevant physical segments sent by the axle counting subsystem are all in an idle state, then the data storage unit determines that there is no abnormality in entrance monitoring.

[0022] In one possible implementation, the area controller continuously monitors the communication status of the computer interlocking subsystem and the entry monitoring for any anomalies.

[0023] Secondly, this application proposes a screening-free system for the entire rail transit line based on axle counting status monitoring. The system includes an axle counting subsystem and a computer interlocking subsystem, an area controller, and a data storage unit connected in sequence.

[0024] When the area controller detects an abnormality at the entrance, it sends a fault report to the data storage unit and reports the communication status of the computer interlocking subsystem. If the computer interlocking subsystem and the area controller experience a communication failure, the data storage unit will determine the occupancy / idleness of the entrance monitoring axis.

[0025] The data storage unit establishes communication with one or more axle counting subsystems, and then verifies the legality of the information sent by the axle counting subsystem. If the number of communication interruption cycles reaches a preset cycle value, all axle counting sections associated with the axle counting subsystem are considered to be in a sluggish state. If the number of continuously received illegal data exceeds the preset cycle value, all axle counting sections associated with the axle counting subsystem are in a sluggish state.

[0026] The data storage unit acquires and processes the physical segment status sent by the axle counting subsystem. A physical segment contains multiple axle counting segments, and determines the occupancy / idle status of the entry monitoring axle.

[0027] The data storage unit performs entry monitoring and judgment based on the occupied / idle status. If there are no abnormalities, it sends the full-line screening exemption flag to the area controller. When the computer interlocking subsystem and the area controller resume communication, the area controller can quickly screen the faulty train.

[0028] In one possible implementation, if communication between the data storage unit and the area controller is interrupted, the data storage unit sets all the counting axes within the area controller's range to an abnormal occupancy state.

[0029] In one possible implementation, the data storage unit acquires and processes the physical segment status sent by the axle counting subsystem to determine the occupancy / idle status of the inlet monitoring axle, including:

[0030] The axle counting subsystem provides the data storage unit with occupancy / idle status information for multiple physical segments;

[0031] The data storage unit queries all physical sections related to the entrance monitoring axle based on the information obtained from the area controller, and matches the occupancy / idle status information of the corresponding physical section from the axle counting subsystem. A physical section can contain multiple axle counting sections to determine the occupancy / idle status of the entrance monitoring axle.

[0032] In one possible implementation, when the area controller reports no abnormality in the entrance monitoring, the data storage unit determines that there is no abnormality in the entrance monitoring.

[0033] When the area controller reports no abnormalities in the entrance monitoring, the data storage unit determines that there are no abnormalities in the entrance monitoring.

[0034] When the area controller reports an entry monitoring anomaly, if the computer interlocking subsystem communicating with the area controller is functioning normally, the data storage unit determines that the entry monitoring is abnormal.

[0035] When the area controller reports an entry monitoring anomaly, if the computer interlocking subsystem communicating with the area controller has a communication failure, and the data storage unit confirms that the relevant physical segment sent by the axle counting subsystem is occupied, then the data storage unit determines that the entry monitoring is abnormal.

[0036] When the area controller reports an abnormality in entrance monitoring, if the computer interlocking subsystem communicating with the area controller has a communication failure, and the data storage unit confirms that the relevant physical segments sent by the axle counting subsystem are all in an idle state, then the data storage unit determines that there is no abnormality in entrance monitoring.

[0037] In one possible implementation, the area controller continuously monitors the communication status of the computer interlocking subsystem and the entry monitoring for any anomalies.

[0038] The main solution and its various further alternatives described above can be freely combined to form multiple solutions, all of which are solutions that can be adopted and are claimed in this application; furthermore, the (non-conflicting alternatives) can also be freely combined with each other and with other alternatives. Those skilled in the art, after understanding the solution of this application, will realize from the prior art and common general knowledge that there are many combinations, all of which are technical solutions to be protected by this application, and will not be exhaustively listed here.

[0039] This application discloses a method and system for eliminating screening across the entire rail transit line based on axle counting status monitoring. When the area controller experiences an anomaly at the entrance monitoring point, it sends a fault report and reports the communication status of the computer interlocking subsystem. If a communication failure occurs between the computer interlocking subsystem and the area controller, the data storage unit establishes communication with the axle counting subsystem. The data storage unit can obtain and process the physical section status sent by the axle counting subsystem, determine the occupancy / idle status of the axles at the entrance monitoring point, and issue a line-wide screening exemption flag to the area controller. When communication between the computer interlocking subsystem and the area controller is restored, the area controller can quickly screen faulty trains. By utilizing the communication between the data storage unit and the axle counting subsystem and monitoring the axle counting status at the entrance, the normal status of the line-wide screening exemption flag is maintained when communication between the computer interlocking subsystem and the area controller fails, improving the availability of the line-wide screening exemption function. Attached Figure Description

[0040] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1A flowchart of a screening-free method for the entire rail transit line based on axle condition monitoring, as proposed in an embodiment of this application, is shown.

[0042] Figure 2 A schematic diagram illustrating the logical communication between the data storage unit and the axle counting subsystem proposed in an embodiment of this application is shown. Detailed Implementation

[0043] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. This application can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, unless otherwise specified, the following embodiments and features in the embodiments can be combined with each other.

[0044] Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0045] In existing technologies, the regional rail transit fully automated operation signaling system is a fully automated operation system based on unmanned automatic driving. Due to train degradation or communication failure with the mainline ZC during operation within the mainline zone controller (ZC), the train will display a suspicious front and rear end marker after communication is restored. The ZC needs to perform front and rear end screening. Traditional screening methods require the train's front end to be less than the minimum track length of the available axle section. However, the proposed rapid recovery scheme for faulty trains in the regional rail transit fully automated operation signaling system, with its line-wide screening-free function, allows faulty trains to quickly complete screening and thus rapidly return to fully automated driving mode.

[0046] Therefore, based on the rapid recovery scheme for faulty trains, this application proposes that when the computer interlocking subsystem (CI) and the area controller (ZC) experience communication failures, the data storage unit (DSU) communicates directly with the axle system to maintain the DSU's line-wide screening-free status. Once communication between CI and ZC is restored, the rapid recovery function for faulty trains can be quickly implemented. This scheme improves the availability of the rapid recovery plan for faulty trains, thereby increasing operational efficiency. A detailed explanation follows.

[0047] Please refer to Figure 1 , Figure 1This application presents a flowchart illustrating a method for screen-free operation of an entire rail transit line based on axle counting status monitoring. This method is applied to a screen-free rail transit system, which includes an axle counting subsystem and, in sequence, a computer interlocking subsystem, a zone controller, and a data storage unit. The method includes:

[0048] When the area controller detects an abnormality at the entrance, it sends a fault report to the data storage unit and reports the communication status of the computer interlocking subsystem. If the computer interlocking subsystem and the area controller experience a communication failure, the data storage unit needs to determine the occupancy / idleness of the entrance monitoring axis.

[0049] The data storage unit establishes communication with the axle counting subsystem and then verifies the legality of the information sent by the axle counting subsystem. If the number of communication interruption cycles reaches a preset cycle value, all axle counting sections involved in the axle counting subsystem are considered to be in a saturated state. If the number of continuously received illegal data exceeds the preset cycle value, it also indicates that all axle counting sections involved in the axle counting subsystem are in a saturated state.

[0050] The data storage unit obtains and processes the physical segment status sent by the axle counting subsystem. Since a physical segment can contain multiple axle counting segments, the occupancy / idle status of the inlet monitoring axle can be determined.

[0051] The data storage unit performs entry monitoring and judgment based on the occupied / idle status. If there are no abnormalities, it sends the full-line screening exemption flag to the area controller. When the computer interlocking subsystem and the area controller resume communication, the area controller can quickly screen the faulty train.

[0052] The axle system is responsible for monitoring the occupancy / vacancy status of physical sections. The computer interlocking (CI) system controls and manages train routes. The zone controller (ZC) is responsible for processing train operation information within its zone and communicating with the CI. The data storage unit (DSU), as the core processing unit, receives and processes data from the ZC and the axle system and maintains the screening-free signs for the entire line.

[0053] First, when the area controller detects an anomaly at the entrance, it sends a fault report to the data storage unit, which includes the communication status of the computer interlocking subsystem. If a communication failure does occur between the computer interlocking subsystem and the area controller, the area controller will also explicitly indicate this in the report. After receiving the fault report from the ZC, the data storage unit begins to determine the physical section status (occupied / idle) sent by the axle counting subsystem, thereby determining the actual status of the entrance monitoring axle counting.

[0054] The data storage unit needs to maintain continuous communication with the axle counting subsystem. When the data storage unit receives data sent by the axle counting subsystem, it will verify the validity of the data. If it receives invalid data continuously for more than a preset period value, the data storage unit will consider all relevant axle counting sections to be in a saturated state and take corresponding measures.

[0055] The data storage unit continuously obtains the latest physical section status (occupancy / idleness) from the axle counting subsystem and processes this information. The processed information is used to determine the occupancy / idleness status of the axles used for entrance monitoring. Based on the processed occupancy / idleness status, the data storage unit performs entrance monitoring judgment. If the judgment result is no abnormality, and other conditions are met, the data storage unit generates a line-wide exemption flag and sends it to the area controller. After receiving the line-wide exemption flag, the area controller can quickly screen out faulty trains and achieve rapid upgrades. Before the data storage unit sends out the line-wide exemption flag, the area controller needs to ensure that its internally stored list of communication trains is consistent with that provided by the data storage unit, and that the serial numbers are also consistent, to ensure the safety and accuracy of the exemption operation.

[0056] In one possible implementation, suppose a communication failure occurs between the computer interlocking subsystem and the area controller within a certain area, causing the area controller to determine that the entrance monitoring is abnormal. In this case, the area controller immediately sends a fault report to the data storage unit. Upon receiving the report, the data storage unit begins to verify and process the physical section status to obtain the status of the entrance monitoring axles. If the data storage unit confirms that all entrance monitoring axles are in an idle state, it considers the entrance monitoring normal, continues to maintain it, and issues a full-line screening exemption flag to the area controller. When communication between the computer interlocking subsystem and the area controller is restored, the faulty train can quickly resume operation.

[0057] This screening-free method for the entire rail transit line is applied to the screening-free system of the entire rail transit line. It aims to optimize the axle counting status monitoring at the entrance, ensuring that the data storage unit maintains the screening-free status even when entrance monitoring anomalies are caused by communication failures between the computer interlocking subsystem and the area controller. Through direct communication with the axle counting subsystem, the data storage unit can reassess the actual status of the entrance axle counting. Once communication between the computer interlocking subsystem and the area controller is restored, it helps the area controller quickly restore service to the faulty train.

[0058] The screening-free method for the entire rail transit line also includes:

[0059] In the event of a communication interruption between the data storage unit and the area controller, the data storage unit will set all axle counters within the area controller's scope to an abnormal occupancy state.

[0060] When communication between the DSU and ZC is interrupted, to ensure system safety, the DSU will default to setting all axle counting sections within the ZC's range to an abnormal occupancy state. This follows the "fail-safe" principle, meaning that in uncertain situations, the system takes the most conservative safety measures to prevent potential dangers. At this time, the DSU cannot obtain the latest axle counting section status from the ZC. Therefore, it assumes all axle counting sections are in an abnormal occupancy state to ensure no misjudgment of any possible train occupancy. Since all axle counting sections are marked as abnormally occupant, the DSU will consider the entrance monitoring to be in an abnormal state and will not issue a full-line exemption flag to the ZC, avoiding potential risks caused by an incorrect full-line exemption flag and ensuring the system remains safe until communication is restored.

[0061] Once communication between the DSU and ZC is restored, the DSU will reassess and decide whether to issue a line-wide exemption from screening, helping the faulty train to quickly resume operation. Through a guided safety handling mechanism, the system's safety is ensured during communication interruptions, preventing potential operational accidents. Even in the event of a communication interruption, the system maintains a stable operating state, waiting for communication to be restored before quickly resuming normal operation.

[0062] The data storage unit acquires and processes the physical section status sent by the axle counting subsystem to determine the occupancy / idle status of the inlet monitoring axle, including the following steps:

[0063] The axle counting subsystem provides the data storage unit with occupancy / idle status information for multiple physical segments;

[0064] The data storage unit queries all physical sections related to the entrance monitoring axle based on the information obtained from the area controller, and matches the occupancy / idle status information of the corresponding physical section from the axle counting subsystem. Since a physical section can contain multiple axle counting sections, the occupancy / idle status of the entrance monitoring axle can be determined.

[0065] The axle counting subsystem sends "occupancy / idle" status information of multiple physical sections to the data storage unit. This information reflects the actual occupancy or idle status of each axle. Then, the data storage unit obtains data from the area controller and queries all physical section information related to the entrance monitoring axle, including but not limited to detailed parameters such as section number and location.

[0066] The data storage unit matches the received physical segment status with the relevant physical segment information queried from ZC. Specifically, the DSU checks the status of each physical segment to ensure it matches the actual occupancy / idle status. Based on the matching results, the DSU ultimately determines the "occupancy / idle" status of the entrance monitoring axis. If all relevant physical segments are "idle," the entrance monitoring axis is "idle"; if any relevant physical segment is "occupied," the entrance monitoring axis is "occupied." The data storage unit updates the entrance monitoring axis status determined by the data storage unit to its internal database and records it for subsequent processing and decision-making.

[0067] The steps for data storage units to perform entry monitoring and determination based on occupied / idle status include:

[0068] When the area controller reports no abnormalities in the entrance monitoring, the data storage unit determines that there are no abnormalities in the entrance monitoring.

[0069] When the area controller reports an entry monitoring anomaly, if the communication between the reporting computer interlocking subsystem and the controller is normal, the data storage unit determines that the entry monitoring is abnormal.

[0070] When the area controller reports an entry monitoring anomaly, if the computer interlocking subsystem that reports it has a communication failure, and the data storage unit confirms that the relevant physical segment sent by the axle counting subsystem is occupied, then the data storage unit determines that the entry monitoring is abnormal.

[0071] When the area controller reports an abnormality in entrance monitoring, if the computer interlocking subsystem communicating with it has a communication failure, and the data storage unit confirms that the relevant physical segments sent by the axle counting subsystem are all in an idle state, then the data storage unit determines that there is no abnormality in entrance monitoring.

[0072] The data storage unit obtains information from the area controller regarding all computer interlocking subsystems related to entrance monitoring and checks the communication status of these subsystems. If the area controller reports an entrance monitoring anomaly, but it's not due to a communication failure in the computer interlocking subsystem, the data storage unit will directly consider it an entrance monitoring anomaly and will not perform any further entrance monitoring determination. If the area controller reports an entrance monitoring anomaly and a communication failure in the computer interlocking subsystem is detected, the data storage unit needs to determine the entrance monitoring anomaly. Assuming there is no communication failure between the data storage unit and the axle counting subsystem, the data storage unit further confirms whether all entrance monitoring axles within the area controller's scope are in an idle state. Specifically, the data storage unit will check the status of each relevant physical section one by one to ensure they are all "idle".

[0073] If the area controller reports no abnormalities in the entrance monitoring during the above steps, the data storage unit determines that there are no abnormalities in the entrance monitoring. The data storage unit updates the final determination result to its internal database and records it for subsequent processing and decision-making.

[0074] The area controller continuously monitors the communication status of the computer interlocking subsystem and checks for any anomalies in the entry monitoring.

[0075] The area controller continuously checks whether the communication between the computer interlocking subsystems connected to it is normal. At the same time, it also monitors the status of the entrance axles to confirm whether these axles are occupied abnormally (i.e., no non-communication vehicles are occupying them).

[0076] In one possible embodiment, Figure 2 This diagram illustrates the logical communication between the data storage unit and the axle counting subsystem proposed in this embodiment of the application. It comprises two main parts: the axle counting subsystem and the computer interlocking system (CBI) (or TMC / DSU). The axle counting subsystem is divided into two parts, each containing a primary system (System I) and a backup system (System II). The primary and backup systems communicate via red and blue wires, respectively. Similarly, the computer interlocking system (CBI) is also divided into two parts, each containing a primary system and a backup system, which communicate via red and blue wires, respectively. Each axle counting subsystem and CBI system has a corresponding communication board for data transmission. The communication board is labeled with its IP address and port number, such as 10.8.6.12, 10.108.6.12, etc. Dashed lines in the diagram represent the system boundaries, distinguishing the communication paths between the axle counting subsystem and the CBI system. The red and blue wires are represented by red and blue lines, respectively, showing the communication paths between the various systems and ensuring the stability and reliability of the system.

[0077] Compared with the prior art, the embodiments of this application have the following beneficial effects:

[0078] First, through systematic and automated monitoring and reporting, the area controller can detect communication failures and changes in axle status in real time and issue alarms immediately to help take swift action and avoid potential safety hazards.

[0079] Secondly, the automatic generation of detailed fault reports reduces the workload of manual record-keeping and makes maintenance work more efficient. Maintenance personnel can rationally arrange maintenance plans, concentrate resources on handling key issues, and optimize resource allocation.

[0080] Third, complete records of status changes ensure the traceability of historical data, support preventative maintenance, and reduce the probability of failures. Users understand the system's operational status through fault reports, enhancing their trust, ensuring service continuity, and improving satisfaction.

[0081] The following is a possible implementation of a rail transit full-line screening-free system based on axle counting status monitoring. It is used to execute the various execution steps and corresponding technical effects of the rail transit full-line screening-free method shown in the above embodiments and possible implementations. The system includes an axle counting subsystem and a computer interlocking subsystem, a zone controller, and a data storage unit connected in sequence.

[0082] When the area controller detects an abnormality at the entrance, it sends a fault report to the data storage unit and reports the communication status of the computer interlocking subsystem. If the computer interlocking subsystem and the area controller experience a communication failure, the data storage unit needs to determine the occupancy / idleness of the entrance monitoring axis.

[0083] The data storage unit establishes communication with the axle counting subsystem and then verifies the legality of the information sent by the axle counting subsystem. If the number of communication interruption cycles reaches a preset cycle value, it is considered to be in a saturated state. If the number of continuously received illegal data exceeds the preset cycle value, it also indicates that all axle counting sections are in a saturated state.

[0084] The data storage unit obtains and processes the physical segment status sent by the axle counting subsystem. Since a physical segment can contain multiple axle counting segments, the occupancy / idle status of the inlet monitoring axle can be determined.

[0085] The data storage unit performs entry monitoring and judgment based on the occupied / idle status. If there are no abnormalities, it sends the full-line screening exemption flag to the area controller. When the computer interlocking subsystem and the area controller resume communication, the area controller can quickly screen the faulty train.

[0086] In one possible implementation, if communication between the data storage unit and the area controller is interrupted, the data storage unit sets all the counting axes within the area controller's range to an abnormal occupancy state.

[0087] In one possible implementation, the data storage unit acquires and processes the physical segment status sent by the axle counting subsystem to determine the occupancy / idle status of the inlet monitoring axle, including:

[0088] The axle counting subsystem provides the data storage unit with occupancy / idle status information for multiple physical segments;

[0089] The data storage unit queries all physical sections related to the entrance monitoring axle based on the information obtained from the area controller, and matches the occupancy / idle status information of the corresponding physical section from the axle counting subsystem. Since a physical section can contain multiple axle counting sections, the occupancy / idle status of the entrance monitoring axle can be determined.

[0090] In one possible implementation, when the area controller reports no abnormality in the entrance monitoring, the data storage unit determines that there is no abnormality in the entrance monitoring.

[0091] When the area controller reports an entry monitoring anomaly, if the communication between the reporting computer interlocking subsystem and the controller is normal, the data storage unit determines that the entry monitoring is abnormal.

[0092] When the area controller reports an entry monitoring anomaly, if the computer interlocking subsystem that reports it has a communication failure, and the data storage unit confirms that the relevant physical segment sent by the axle counting subsystem is occupied, then the data storage unit determines that the entry monitoring is abnormal.

[0093] When the area controller reports an abnormality in entrance monitoring, if the computer interlocking subsystem communicating with it has a communication failure, and the data storage unit confirms that the relevant physical segments sent by the axle counting subsystem are all in an idle state, then the data storage unit determines that there is no abnormality in entrance monitoring.

[0094] In one possible implementation, the area controller continuously monitors the communication status of the computer interlocking subsystem and the entry axis monitoring for any anomalies.

[0095] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A screening-free method for the entire rail transit line based on axle condition monitoring, characterized in that, The method is applied to a screening-free system for the entire rail transit line. The system includes an axle counting subsystem and, sequentially connected, a computer interlocking subsystem, a zone controller, and a data storage unit. The method includes: When the area controller detects an abnormality at the entrance, it sends a fault report to the data storage unit and reports the communication status of the computer interlocking subsystem. If the computer interlocking subsystem and the area controller experience a communication failure, the data storage unit will determine the occupancy / idleness of the entrance monitoring axis. The data storage unit establishes communication with one or more axle counting subsystems, and then verifies the legality of the information sent by the axle counting subsystem. If the number of communication interruption cycles reaches a preset cycle value, all axle counting sections associated with the axle counting subsystem are considered to be in a sluggish state. If the number of continuously received illegal data exceeds the preset cycle value, all axle counting sections associated with the axle counting subsystem are in a sluggish state. The data storage unit acquires and processes the physical segment status sent by the axle counting subsystem. A physical segment contains multiple axle counting segments, and determines the occupancy / idle status of the entry monitoring axle. The data storage unit performs entry monitoring and determination based on the occupancy / idle status. If no abnormalities are found, it sends a line-wide exemption flag to the area controller. Once the computer interlocking subsystem and the area controller resume communication, the area controller can quickly screen faulty trains. The steps of the data storage unit performing entry monitoring and determination based on the physical section occupancy / idle status include: When the area controller reports no abnormalities in the entrance monitoring, the data storage unit determines that there are no abnormalities in the entrance monitoring. When the area controller reports an entry monitoring anomaly, if the computer interlocking subsystem communicating with the area controller is functioning normally, the data storage unit determines that the entry monitoring is abnormal. When the area controller reports an entry monitoring anomaly, if the computer interlocking subsystem communicating with the area controller has a communication failure, and the data storage unit confirms that the relevant physical segment sent by the axle counting subsystem is occupied, then the data storage unit determines that the entry monitoring is abnormal. When the area controller reports an abnormality in entrance monitoring, if the computer interlocking subsystem communicating with the area controller has a communication failure, and the data storage unit confirms that the relevant physical segments sent by the axle counting subsystem are all in an idle state, then the data storage unit determines that there is no abnormality in entrance monitoring.

2. The screening-free method for the entire rail transit line as described in claim 1, characterized in that, The method further includes: In the event of a communication interruption between the data storage unit and the area controller, the data storage unit will set all axle counters within the area controller's scope to an abnormal occupancy state.

3. The screening-free method for the entire rail transit line as described in claim 1, characterized in that, The data storage unit acquires and processes the physical section status sent by the axle counting subsystem to determine the occupancy / idle status of the inlet monitoring axle, including the following steps: The axle counting subsystem provides the data storage unit with occupancy / idle status information for multiple physical segments; The data storage unit queries all physical sections related to the entrance monitoring axle based on the information obtained from the area controller, and matches the occupancy / idle status information of the corresponding physical section from the axle counting subsystem. A physical section can contain multiple axle counting sections to determine the occupancy / idle status of the entrance monitoring axle.

4. The screening-free method for the entire rail transit line as described in claim 1, characterized in that, The area controller continuously monitors the communication status of the computer interlocking subsystem and checks for any anomalies in the entry monitoring.

5. A screening-free system for the entire rail transit line based on axle counting condition monitoring, characterized in that, The system includes a shaft counting subsystem and a computer interlocking subsystem, a regional controller, and a data storage unit connected in sequence. When the area controller detects an abnormality at the entrance, it sends a fault report to the data storage unit and reports the communication status of the computer interlocking subsystem. If the computer interlocking subsystem and the area controller experience a communication failure, the data storage unit will determine the occupancy / idleness of the entrance monitoring axis. The data storage unit establishes communication with one or more axle counting subsystems, and then verifies the legality of the information sent by the axle counting subsystem. If the number of communication interruption cycles reaches a preset cycle value, all axle counting sections associated with the axle counting subsystem are considered to be in a sluggish state. If the number of continuously received illegal data exceeds the preset cycle value, all axle counting sections associated with the axle counting subsystem are in a sluggish state. The data storage unit acquires and processes the physical segment status sent by the axle counting subsystem. A physical segment contains multiple axle counting segments, and determines the occupancy / idle status of the entry monitoring axle. The data storage unit performs entry monitoring and judgment based on the occupied / idle status. If there is no abnormality, the full-line screening exemption sign is sent to the area controller. When the computer interlocking subsystem and the area controller resume communication, the area controller can quickly screen the faulty train. When the area controller reports that there is no abnormality in entry monitoring, the data storage unit determines that there is no abnormality in entry monitoring. When the area controller reports no abnormalities in the entrance monitoring, the data storage unit determines that there are no abnormalities in the entrance monitoring. When the area controller reports an entry monitoring anomaly, if the computer interlocking subsystem communicating with the area controller is functioning normally, the data storage unit determines that the entry monitoring is abnormal. When the area controller reports an entry monitoring anomaly, if the computer interlocking subsystem communicating with the area controller has a communication failure, and the data storage unit confirms that the relevant physical segment sent by the axle counting subsystem is occupied, then the data storage unit determines that the entry monitoring is abnormal. When the area controller reports an abnormality in entrance monitoring, if the computer interlocking subsystem communicating with the area controller has a communication failure, and the data storage unit confirms that the relevant physical segments sent by the axle counting subsystem are all in an idle state, then the data storage unit determines that there is no abnormality in entrance monitoring.

6. The screening-free system for the entire rail transit line as described in claim 5, characterized in that, In the event of a communication interruption between the data storage unit and the area controller, the data storage unit will set all axle counters within the area controller's scope to an abnormal occupancy state.

7. The screening-free system for the entire rail transit line as described in claim 5, characterized in that, The data storage unit acquires and processes the physical section status sent by the axle counting subsystem to determine the occupancy / idle status of the inlet monitoring axle, including the following steps: The axle counting subsystem provides the data storage unit with occupancy / idle status information for multiple physical segments; The data storage unit queries all physical sections related to the entrance monitoring axle based on the information obtained from the area controller, and matches the occupancy / idle status information of the corresponding physical section from the axle counting subsystem. A physical section can contain multiple axle counting sections to determine the occupancy / idle status of the entrance monitoring axle.

8. The screening-free system for the entire rail transit line as described in claim 5, characterized in that, The area controller continuously monitors the communication status of the computer interlocking subsystem and checks for any anomalies in the entry monitoring.

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