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

Abstract

The invention discloses a rail transit whole-line screening-free method and system based on axle counting state monitoring, and the method comprises the steps: transmitting a fault report and reporting the communication state of a computer interlocking subsystem when an entrance of a region controller is monitored to be abnormal; due to the fact that the data storage unit establishes communication with the axle counting subsystem, the data storage unit can obtain and process the physical section state sent by the axle counting subsystem, determine the occupied / idle state of the entrance monitoring axle counting, carry out entrance monitoring judgment and send a whole-line screening-free mark to the area controller, and the area controller sends the whole-line screening-free mark to the area controller. And after the computer interlocking subsystem and the area controller recover communication, the area controller rapidly screens the fault train. By using the communication between the data storage unit and the axle counting subsystem and monitoring the state of the axle counting at the inlet, the normal state of the whole-line screening-free mark is maintained when the communication between the computer interlocking subsystem and the area controller fails, and the usability of the whole-line screening-free function is improved.

Description

Technical Field

[0001] The present application relates to the field of rail transit technology, and more specifically, to a full-line screening-free rail transit method and system based on axle counting status monitoring. Background Art

[0002] In the fully automatic signaling system of regional rail transit, the information transmission between the ground control system and the onboard system realizes the moving block function. The system mainly includes the integrated automation system (TIAS), the zone controller (ZC), the data storage unit (DSU), the computer interlocking system (CI) and the onboard control system (VOBC). Among them, the zone controller ZC is responsible for receiving the location information of VOBC and the line status information reported by CI in real time, and calculating the movement authorization (MA) for the train according to the data version provided by DSU and the temporary speed limit information of the whole line. When VOBC receives the MA from ZC, the train can be upgraded to the communication-based train control (CBTC) mode. To ensure safety, ZC needs to confirm that there is no suspicious vehicle in front of the train that has not reported its position when calculating the movement authorization. However, in some cases, such as communication failure or failure of the train's own positioning, ZC may lose the train position information, making the traditional screening method inefficient.

[0003] To this end, the system has introduced a "full-line screening-free" function to help faulty trains recover quickly and resume normal operation. The full-line screening-free function relies on the participation of DSU, and one of its startup conditions is that ZC receives the full-line screening-free flag issued by DSU. DSU needs to verify the following conditions: First, DSU maintains normal communication with all mainline ZCs; second, the entrance monitoring ZC reports to DSU that the entrance monitoring is normal; third, the communication train list saved by DSU is consistent with the communication train list reported by all mainline ZCs; fourth, if the screening-free sequence number reported by the mainline ZC changes, the DSU cycle number of the current cycle is cached, and the DSU cycle number in the GAL reported by other mainline ZCs should be greater than or equal to the cached DSU cycle number.

[0004] However, in actual applications, it is found that when there is a problem with the communication between the entrance monitoring ZC and CI, the guided safety processing mechanism will cause the entrance monitoring ZC to misjudge that the entrance axle counter is abnormally occupied, even though the actual situation may be that the axle counter is idle. This CI communication anomaly will prevent the execution of the full-line screening-free function, reducing the actual effectiveness and reliability of this function. The problem existing in the prior art is that due to the false alarm of the entrance monitoring ZC caused by the CI communication anomaly, the DSU cannot normally issue the full-line screening-free sign, resulting in the subsequent full-line screening-free function being unable to function effectively, which in turn affects the operational efficiency and safety of the entire system. Therefore, solving this problem is of great significance to improving the stability and reliability of the rail transit fully automatic operation system. Summary of the invention

[0005] The purpose of this application is to overcome the existing technical defects and provide a method and system for rail transit line-wide screening-free based on axle counter status monitoring. By utilizing the direct communication between the data storage unit and the axle counter subsystem, combined with monitoring the status of the axle counter at the entrance, it is ensured that even in the event of a communication failure between the computer interlocking subsystem and the regional controller, the normal state of the full-line screening-free sign can be maintained, thereby improving the availability of the full-line screening-free function.

[0006] The purpose of this application is achieved through the following technical solutions:

[0007] In the first aspect, the present application proposes a rail transit full-line screening-free method based on axle counting status monitoring, the method is applied to a rail transit full-line screening-free system, the system includes an axle counting subsystem and a computer interlocking subsystem, a regional controller, and a data storage unit connected in sequence, the method includes:

[0008] When the entrance monitoring is abnormal, the area controller sends a fault report to the data storage unit 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 performs an occupied / idle determination of the entrance monitoring axle.

[0009] The data storage unit establishes communication with one or more axle counting subsystems, and then performs a validity check on 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 an occupied state. If the number of consecutively received illegal data exceeds the preset cycle value, all axle counting sections associated with the axle counting subsystem are in an occupied state.

[0010] The data storage unit obtains and processes the physical segment status sent by the axle counting subsystem. A physical segment contains multiple axle counting segments, and determines the occupied / idle status of the entrance monitoring axle counter;

[0011] The data storage unit performs entrance monitoring and judgment based on the occupied / idle status. If there is no abnormality, the full-line screening-free flag will be sent to the regional controller. When the computer interlocking subsystem and the regional controller resume communication, the regional controller will quickly screen the faulty train.

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

[0013] In the case where the communication between the data storage unit and the zone controller is interrupted, the data storage unit sets all axle counters within the range of the zone controller to an abnormal occupied state.

[0014] In a possible implementation, the data storage unit acquires and processes the physical segment status sent by the axle counter subsystem to determine the occupied / idle status of the entrance monitoring axle counter, including:

[0015] The axle counting subsystem provides the occupied / idle status information of the plurality of physical segments to the data storage unit;

[0016] The data storage unit queries all physical segments related to the entrance monitoring axle counter based on the information obtained from the zone controller, and matches the occupied / idle status information of the corresponding physical segments from the axle counter subsystem. A physical segment may contain multiple axle counter segments to determine the occupied / idle status of the entrance monitoring axle counter.

[0017] In a possible implementation, the step of the data storage unit performing entrance monitoring and determination based on the occupied / idle state of the physical segment includes:

[0018] When the zone controller reports that the entrance monitoring is normal, the data storage unit determines that the entrance monitoring is normal;

[0019] When the zone controller reports that the entrance monitoring is abnormal, if the computer interlocking subsystem communicating with the zone controller is communicating normally, the data storage unit determines that the entrance monitoring is abnormal;

[0020] When the zone controller reports an abnormality in entrance monitoring, if there is a communication failure in the computer interlocking subsystem communicating with the zone controller, and the data storage unit confirms that the relevant physical segment sent by the axle counting subsystem has an occupied status, the data storage unit determines that the entrance monitoring is abnormal;

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

[0022] In a possible implementation, the zone controller continuously monitors the communication status of the computer interlocking subsystem and the entrance monitoring to see if there are any abnormalities.

[0023] In a second aspect, the embodiment of the present application proposes a rail transit full-line screening-free system based on axle counting status monitoring, the system comprising an axle counting subsystem and a computer interlocking subsystem, a regional controller, and a data storage unit connected in sequence;

[0024] When the entrance monitoring is abnormal, the area controller sends a fault report to the data storage unit 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 performs an occupied / idle determination of the entrance monitoring axle.

[0025] The data storage unit establishes communication with one or more axle counting subsystems, and then performs a validity check on 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 an occupied state. If the number of consecutively received illegal data exceeds the preset cycle value, all axle counting sections associated with the axle counting subsystem are in an occupied state.

[0026] The data storage unit obtains and processes the physical segment status sent by the axle counting subsystem. A physical segment contains multiple axle counting segments, and determines the occupied / idle status of the entrance monitoring axle counter;

[0027] The data storage unit performs entrance monitoring and judgment based on the occupied / idle status. If there is no abnormality, the full-line screening-free flag will be sent to the regional controller. When the computer interlocking subsystem and the regional controller resume communication, the regional controller will quickly screen the faulty train.

[0028] In a possible implementation manner, when the communication between the data storage unit and the regional controller is interrupted, the data storage unit sets all axle counters within the regional controller to an abnormal occupied state.

[0029] In a possible implementation, the data storage unit acquires and processes the physical segment status sent by the axle counter subsystem to determine the occupied / idle status of the entrance monitoring axle counter, including:

[0030] The axle counting subsystem provides the occupied / idle status information of the plurality of physical segments to the data storage unit;

[0031] The data storage unit queries all physical segments related to the entrance monitoring axle counter based on the information obtained from the zone controller, and matches the occupied / idle status information of the corresponding physical segments from the axle counter subsystem. A physical segment may contain multiple axle counter segments to determine the occupied / idle status of the entrance monitoring axle counter.

[0032] In a possible implementation, when the zone controller reports that the entrance monitoring is normal, the data storage unit determines that the entrance monitoring is normal;

[0033] When the zone controller reports that the entrance monitoring is normal, the data storage unit determines that the entrance monitoring is normal;

[0034] When the zone controller reports that the entrance monitoring is abnormal, if the computer interlocking subsystem communicating with the zone controller is communicating normally, the data storage unit determines that the entrance monitoring is abnormal;

[0035] When the zone controller reports an abnormality in entrance monitoring, if there is a communication failure in the computer interlocking subsystem communicating with the zone controller, and the data storage unit confirms that the relevant physical segment sent by the axle counting subsystem has an occupied status, the data storage unit determines that the entrance monitoring is abnormal;

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

[0037] In a possible implementation, the zone controller continuously monitors the communication status of the computer interlocking subsystem and the entrance monitoring to see if there are any abnormalities.

[0038] The above-mentioned main scheme of the present application and its further options can be freely combined to form multiple schemes, all of which are schemes that can be adopted and claimed for protection in the present application; and in the present application, (non-conflicting options) options and other options can also be freely combined. After understanding the scheme of the present application, those skilled in the art can understand that there are multiple combinations based on the prior art and common knowledge, all of which are technical schemes to be protected by the present application, and they are not exhaustively listed here.

[0039] The present application discloses a method and system for rail transit full-line screening-free based on axle counter status monitoring. When the regional controller monitors abnormally at the entrance, a fault report is sent and the communication status of the computer interlocking subsystem is reported. If a communication failure occurs between the computer interlocking subsystem and the regional controller, since the data storage unit establishes communication with the axle counter subsystem, the data storage unit can obtain the physical section status sent by the axle counter subsystem and process it, determine the occupied / idle status of the entrance monitoring axle counter, and the data storage unit performs entrance monitoring judgment, and sends the full-line screening-free flag to the regional controller. When the computer interlocking subsystem and the regional controller resume communication, the regional controller quickly screens the faulty train. By utilizing the communication between the data storage unit and the axle counter subsystem and monitoring the status of the axle counter at the entrance, the normal state of the full-line screening-free flag is maintained when the computer interlocking subsystem and the regional controller fail to communicate, thereby improving the availability of the full-line screening-free function. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0041] Figure 1A flow chart of a method for eliminating screening of the entire rail transit line based on axle counting status monitoring proposed in an embodiment of the present application is shown.

[0042] Figure 2 A schematic diagram showing the logical communication between the data storage unit and the axle counting subsystem proposed in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0043] The following describes the embodiments of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0044] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0045] In the prior art, the fully automatic operation signal system for regional rail transit is a fully automatic operation system based on unmanned automatic driving. Due to the degradation of the train during operation in the mainline regional control area (Zone Controller, ZC) or the communication failure with the mainline ZC, when the train resumes communication with the mainline ZC, the train will have suspicious front and rear end signs, and the ZC needs to complete the front and rear end screening for it. The traditional screening method requires that the distance between the front position of the train and the free axle counting section in front is less than the minimum vehicle length of the line. The proposal of the fast recovery plan for faulty trains in the fully automatic operation signal system for regional rail transit and the full-line screening-free function enable the faulty vehicle to complete the screening quickly, thereby quickly recovering to the fully automatic driving state.

[0046] Therefore, based on the faulty train rapid recovery solution, this application directly communicates with the axle counting subsystem (Axle System) when the computer interlocking subsystem (CI) and the zone controller (ZC) communicate abnormally, thereby maintaining the full-line screening-free mark of the DSU. When the CI and ZC resume communication, the faulty train rapid recovery function can be quickly realized. This solution can improve the availability of the faulty train rapid recovery solution, thereby improving operational efficiency, which is described in detail below.

[0047] Please refer to Figure 1 , Figure 1A flowchart of a method for rail transit full-line screening-free based on axle counting status monitoring proposed in an embodiment of the present application is shown. The method is applied to a rail transit full-line screening-free system. The system includes an axle counting subsystem and a computer interlocking subsystem, a regional controller, and a data storage unit connected in sequence. The method includes:

[0048] When the entrance monitoring is abnormal, the area controller sends a fault report to the data storage unit 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 is required to make an occupied / idle determination of the entrance monitoring axle.

[0049] The data storage unit establishes communication with the axle counting subsystem, and then performs a validity check on 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 an occupied state. If the number of consecutively received illegal data exceeds the preset cycle value, it also indicates that all axle counting sections involved in the axle counting subsystem are in an occupied state.

[0050] The data storage unit obtains and processes the physical segment status sent by the axle counter subsystem. Since one physical segment may contain multiple axle counter segments, the occupied / idle status of the entrance monitoring axle counter can be determined.

[0051] The data storage unit performs entrance monitoring and judgment based on the occupied / idle status. If there is no abnormality, the full-line screening-free flag will be sent to the regional controller. When the computer interlocking subsystem and the regional controller resume communication, the regional controller will quickly screen the faulty train.

[0052] The axle counting subsystem (Axle System) is responsible for monitoring the occupied / idle status of the physical section, the computer interlocking subsystem (Computer Interlocking, CI) controls and manages the train route, the zone controller (ZC) is responsible for processing the operation information of the trains in the area and communicating with CI, and the data storage unit (Data Storage Unit, DSU) as the core processing unit receives and processes data from the ZC and the axle counting subsystem, and maintains the screening-free mark for the entire line.

[0053] First, when the zone controller entrance monitoring is abnormal, it will send a fault report to the data storage unit, which includes the communication status of the computer interlocking subsystem. If there is indeed a communication failure between the computer interlocking subsystem and the zone controller, the zone controller will also clearly point it out in the report. After the data storage unit receives the fault report from the ZC, the data storage unit begins to determine the physical segment status (occupied / free) 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 check the legitimacy of the data. If illegal data is received continuously for more than a preset period value, the data storage unit will consider that all related axle counting sections are occupied and take corresponding measures.

[0055] The data storage unit continuously obtains the latest physical section status (occupied / idle) from the axle counter subsystem, processes this information, and uses the processed information to determine the occupied / idle status of the entrance monitoring axle counter. Based on the processed occupied / idle status, the data storage unit makes an entrance monitoring judgment. If the judgment result is no abnormality, and other conditions are met, the data storage unit will generate a full-line screening-free flag and send it to the regional controller. After receiving the full-line screening-free flag, the regional controller can quickly screen out faulty trains and achieve rapid upgrades. Before the data storage unit sends the full-line screening-free flag, the regional controller needs to ensure that the communication vehicle list stored in it is consistent with that provided by the data storage unit, and the serial number is also consistent to ensure the safety and accuracy of the screening-free operation.

[0056] In a possible embodiment, it is assumed that a communication failure occurs between the computer interlocking subsystem and the regional controller in a certain area, causing the regional controller to determine that the entrance monitoring is abnormal. At this time, the regional controller immediately sends a fault report to the data storage unit. After receiving the report, the data storage unit begins to verify and process the physical section status, thereby obtaining the status of the entrance monitoring axle counter. If the data storage unit confirms that the entrance monitoring axle counter is in an idle state, it is considered that there is no abnormality in the entrance monitoring, and it continues to maintain and send a full-line screening-free flag to the regional controller. When the computer interlocking subsystem and the regional controller resume communication, the faulty train can quickly resume operation.

[0057] The rail transit full-line screening-free method is applied to the rail transit full-line screening-free system, aiming to optimize the entrance axle counter status monitoring and ensure that the data storage unit can still maintain the full-line screening-free mark when the entrance monitoring is abnormal due to the communication failure between the computer interlocking subsystem and the regional controller. Through direct communication with the axle counter subsystem, the data storage unit can judge the actual status of the entrance axle counter again, and when the computer interlocking subsystem and the regional controller resume communication, it helps the regional controller to quickly recover the faulty train.

[0058] The screening-free methods for the entire rail transit line also include:

[0059] In the case where the communication between the data storage unit and the zone controller is interrupted, the data storage unit sets all axle counters within the range of the zone controller to an abnormal occupied state.

[0060] When the communication between DSU and ZC is interrupted, in order to ensure the safety of the system, DSU will set all axle counting sections within the ZC range to an abnormal occupied state by default. It follows the principle of "fault-oriented safety", that is, in uncertain situations, the system takes the most conservative safety measures to prevent potential dangers. At this time, DSU cannot obtain the latest axle counting section status from ZC. Therefore, it will assume that all axle counting sections are in an abnormal occupied state to ensure that any possible train occupancy will not be misjudged. Since all axle counting sections are marked as abnormally occupied, DSU will consider the entrance monitoring to be in an abnormal state and will not issue a full-line free screening flag to ZC, avoiding potential risks caused by erroneous full-line free screening flags and ensuring that the system remains safe before communication is restored.

[0061] Once the communication between DSU and ZC is restored to normal, DSU will re-evaluate and decide whether to issue the full-line screening exemption mark to help the faulty train resume operation quickly. Through the guidance safety processing mechanism, the safety of the system during the communication interruption is ensured to prevent potential operational accidents. Even in the case of communication interruption, the system can still maintain a stable operating state and quickly resume normal operation after the communication is restored.

[0062] The data storage unit acquires and processes the physical segment status sent by the axle counter subsystem to determine the occupied / idle status of the entrance monitoring axle counter, including:

[0063] The axle counting subsystem provides the occupied / idle status information of the plurality of physical segments to the data storage unit;

[0064] The data storage unit queries all physical segments related to the entrance monitoring axle counter based on the information obtained from the zone controller, and matches the occupied / idle status information of the corresponding physical segment from the axle counter subsystem. Since one physical segment may contain multiple axle counter segments, the occupied / idle status of the entrance monitoring axle counter can be determined.

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

[0066] The data storage unit matches the received physical segment status with the relevant physical segment information queried from the ZC. Specifically, the DSU will check the status of each physical segment to ensure that they are consistent with the actual occupied / idle situation. Based on the matching results, the DSU will finally determine the "occupied / idle" status of the entrance monitoring axle. If all relevant physical segments are "idle", the entrance monitoring axle is "idle"; if any of the relevant physical segments is "occupied", the entrance monitoring axle is "occupied", and the entrance monitoring axle status determined by the data storage unit is updated to its internal database and recorded for further processing and decision-making.

[0067] The step of the data storage unit performing entrance monitoring determination based on the occupied / idle status comprises:

[0068] When the zone controller reports that the entrance monitoring is normal, the data storage unit determines that the entrance monitoring is normal;

[0069] When the zone controller reports that the entrance monitoring is abnormal, if the computer interlocking subsystem communicating with it reports that the communication is normal, the data storage unit determines that the entrance monitoring is abnormal;

[0070] When the zone controller reports an abnormality in entrance monitoring, if the computer interlocking subsystem that reports the abnormality in communication with it has a communication failure, and the data storage unit confirms that the relevant physical section sent by the axle counting subsystem has an occupied state, the data storage unit determines that the entrance monitoring is abnormal;

[0071] When the zone controller reports an abnormality in entrance monitoring, if the computer interlocking subsystem that reports the abnormality in communication 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 idle, the data storage unit determines that there is no abnormality in the entrance monitoring.

[0072] The data storage unit obtains information about all computer interlocking subsystems related to entrance monitoring from the zone controller and checks the communication status of these subsystems. If the zone controller reports an abnormal entrance monitoring, but it is not due to a communication failure in the computer interlocking subsystem, the data storage unit will directly consider the entrance monitoring abnormality and will not make any further entrance monitoring judgments; if it is found that the zone controller reports an abnormal entrance monitoring and a communication failure occurs in the computer interlocking subsystem, the data storage unit is required to make an entrance monitoring abnormality judgment. On the premise of ensuring that 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 axle counting within the range of the entrance monitoring zone controller are in an idle state. Specifically, the data storage unit will check the status of each relevant physical segment one by one to ensure that they are all "idle".

[0073] If in the above steps, the regional controller reports that there is no abnormality in the entrance monitoring, the data storage unit determines that there is no abnormality in the entrance monitoring. The data storage unit updates the final judgment result to its internal database and keeps a record for further processing and decision-making.

[0074] The zone controller continuously monitors the communication status of the computer interlocking subsystem and the entrance monitoring for abnormalities.

[0075] The zone controller will continuously check whether the communication between the computer interlocking subsystems connected to it is normal. At the same time, it will monitor the status of the entrance axle counters to confirm whether these axle counters are occupied abnormally (that is, there are no non-communication vehicles occupying them).

[0076] In one possible embodiment, Figure 2 The schematic diagram of the logical communication between the data storage unit and the axle counting subsystem proposed in the embodiment of the present application is shown, which includes 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 of which includes a main system (I system) and a backup system (II system), and the main system and the backup system communicate through the red network (red line) and the blue network (blue line) respectively. Similarly, the computer interlocking system CBI is also divided into two parts, each of which includes a main system and a backup system, and the main system and the backup system communicate through the red network and the blue network. Each axle counting subsystem and CBI system has a corresponding communication board for data transmission, and the IP address and port number are marked on the communication board, such as 10.8.6.12, 10.108.6.12, etc. The system boundary is indicated by a dotted line in the figure, distinguishing the communication path between the axle counting subsystem and the CBI system. The red network and the blue network are represented by red and blue lines respectively, showing the communication path between each system to ensure the stability and reliability of the system.

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

[0078] First, through systematic and automated monitoring and reporting, ensure that the zone controller can detect communication failures and axle counter status changes in real time and immediately issue an alarm to help take prompt measures to avoid safety hazards.

[0079] Second, it automatically generates detailed fault reports, which reduces the workload of manual recording and makes maintenance work more efficient. Maintenance personnel can arrange maintenance plans reasonably, concentrate resources on handling key issues, and optimize resource allocation.

[0080] Third, complete records of status changes ensure that historical data is traceable, support preventive maintenance, and reduce the probability of failure. Users can understand the system operation status through fault reports, which enhances their sense of trust, ensures service continuity, and improves satisfaction.

[0081] A possible implementation of a rail transit full-line screening-free system based on axle counting status monitoring is given below, which 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 regional controller, and a data storage unit connected in sequence;

[0082] When the entrance monitoring is abnormal, the area controller sends a fault report to the data storage unit 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 is required to make an occupied / idle determination of the entrance monitoring axle.

[0083] The data storage unit establishes communication with the axle counting subsystem, and then verifies the legitimacy 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 an occupied state. If the number of illegal data received continuously exceeds the preset cycle value, it also indicates that all axle counting sections are in an occupied state.

[0084] The data storage unit obtains and processes the physical segment status sent by the axle counter subsystem. Since one physical segment may contain multiple axle counter segments, the occupied / idle status of the entrance monitoring axle counter can be determined.

[0085] The data storage unit performs entrance monitoring and judgment based on the occupied / idle status. If there is no abnormality, the full-line screening-free flag will be sent to the regional controller. When the computer interlocking subsystem and the regional controller resume communication, the regional controller will quickly screen the faulty train.

[0086] In a possible implementation manner, when the communication between the data storage unit and the regional controller is interrupted, the data storage unit sets all axle counters within the regional controller to an abnormal occupied state.

[0087] In a possible implementation, the data storage unit acquires and processes the physical segment status sent by the axle counter subsystem to determine the occupied / idle status of the entrance monitoring axle counter, including:

[0088] The axle counting subsystem provides the occupied / idle status information of the plurality of physical segments to the data storage unit;

[0089] The data storage unit queries all physical segments related to the entrance monitoring axle counter based on the information obtained from the zone controller, and matches the occupied / idle status information of the corresponding physical segment from the axle counter subsystem. Since one physical segment may contain multiple axle counter segments, the occupied / idle status of the entrance monitoring axle counter can be determined.

[0090] In a possible implementation, when the zone controller reports that the entrance monitoring is normal, the data storage unit determines that the entrance monitoring is normal;

[0091] When the zone controller reports that the entrance monitoring is abnormal, if the computer interlocking subsystem communicating with it reports that the communication is normal, the data storage unit determines that the entrance monitoring is abnormal;

[0092] When the zone controller reports an abnormality in entrance monitoring, if the computer interlocking subsystem that reports the abnormality in communication with it has a communication failure, and the data storage unit confirms that the relevant physical section sent by the axle counting subsystem has an occupied state, the data storage unit determines that the entrance monitoring is abnormal;

[0093] When the zone controller reports an abnormality in entrance monitoring, if the computer interlocking subsystem that reports the abnormality in communication 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 idle, the data storage unit determines that there is no abnormality in the entrance monitoring.

[0094] In a possible implementation, the zone controller continuously monitors the communication status of the computer interlocking subsystem and the entrance axle counter monitoring to see if there are any abnormalities.

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

Claims

1. A method for eliminating screening of the entire rail transit line based on axle counting status monitoring, characterized in that: The method is applied to the full-line screening-free system of rail transit, the system includes an axle counting subsystem and a computer interlocking subsystem, a regional controller, and a data storage unit connected in sequence, and the method includes: When the entrance monitoring is abnormal, the area controller sends a fault report to the data storage unit 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 performs an occupied / idle determination of the entrance monitoring axle. The data storage unit establishes communication with one or more axle counting subsystems, and then performs a validity check on 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 an occupied state. If the number of consecutively received illegal data exceeds the preset cycle value, all axle counting sections associated with the axle counting subsystem are in an occupied state. The data storage unit obtains and processes the physical segment status sent by the axle counting subsystem. A physical segment contains multiple axle counting segments, and determines the occupied / idle status of the entrance monitoring axle counter; The data storage unit performs entrance monitoring and judgment based on the occupied / idle status. If there is no abnormality, the full-line screening-free flag will be sent to the regional controller. When the computer interlocking subsystem and the regional controller resume communication, the regional controller will quickly screen the faulty train.

2. The method for eliminating screening of the entire rail transit line as claimed in claim 1, characterized in that: The method further comprises: In the case where the communication between the data storage unit and the zone controller is interrupted, the data storage unit sets all axle counters within the range of the zone controller to an abnormal occupied state.

3. The method for eliminating screening of the entire rail transit line as claimed in claim 1, characterized in that: The data storage unit acquires and processes the physical segment status sent by the axle counter subsystem to determine the occupied / idle status of the entrance monitoring axle counter, including: The axle counting subsystem provides the occupied / idle status information of the plurality of physical segments to the data storage unit; The data storage unit queries all physical segments related to the entrance monitoring axle counter based on the information obtained from the zone controller, and matches the occupied / idle status information of the corresponding physical segments from the axle counter subsystem. A physical segment may contain multiple axle counter segments to determine the occupied / idle status of the entrance monitoring axle counter.

4. The method for eliminating screening of the entire rail transit line as claimed in claim 1, characterized in that: The step of the data storage unit performing entrance monitoring and determination based on the occupied / idle state of the physical segment comprises: When the zone controller reports that the entrance monitoring is normal, the data storage unit determines that the entrance monitoring is normal; When the zone controller reports that the entrance monitoring is abnormal, if the computer interlocking subsystem communicating with the zone controller is communicating normally, the data storage unit determines that the entrance monitoring is abnormal; When the zone controller reports an abnormality in entrance monitoring, if there is a communication failure in the computer interlocking subsystem communicating with the zone controller, and the data storage unit confirms that the relevant physical segment sent by the axle counting subsystem has an occupied status, the data storage unit determines that the entrance monitoring is abnormal; When the zone controller reports an abnormality in entrance monitoring, if there is a communication failure in the computer interlocking subsystem communicating with the zone controller, and the data storage unit confirms that the relevant physical segments sent by the axle counting subsystem are all idle, the data storage unit determines that there is no abnormality in the entrance monitoring.

5. The method for eliminating screening of the entire rail transit line as claimed in claim 1, characterized in that: The zone controller continuously monitors the communication status of the computer interlocking subsystem and the entrance monitoring for abnormalities.

6. A rail transit full-line screening-free system based on axle counting status monitoring, characterized in that: The system includes an axle counting subsystem and a computer interlocking subsystem, a zone controller, and a data storage unit connected in sequence; When the entrance monitoring is abnormal, the area controller sends a fault report to the data storage unit 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 performs an occupied / idle determination of the entrance monitoring axle. The data storage unit establishes communication with one or more axle counting subsystems, and then performs a validity check on 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 an occupied state. If the number of consecutively received illegal data exceeds the preset cycle value, all axle counting sections associated with the axle counting subsystem are in an occupied state. The data storage unit obtains and processes the physical segment status sent by the axle counting subsystem. A physical segment contains multiple axle counting segments, and determines the occupied / idle status of the entrance monitoring axle counter; The data storage unit performs entrance monitoring and judgment based on the occupied / idle status. If there is no abnormality, the full-line screening-free flag will be sent to the regional controller. When the computer interlocking subsystem and the regional controller resume communication, the regional controller will quickly screen the faulty train.

7. The rail transit full-line screening-free system as claimed in claim 6, characterized in that: In the case where the communication between the data storage unit and the zone controller is interrupted, the data storage unit sets all axle counters within the range of the zone controller to an abnormal occupied state.

8. The whole-line screening-free rail transit system as claimed in claim 6, characterized in that: The data storage unit acquires and processes the physical segment status sent by the axle counter subsystem to determine the occupied / idle status of the entrance monitoring axle counter, including: The axle counting subsystem provides the occupied / idle status information of the plurality of physical segments to the data storage unit; The data storage unit queries all physical segments related to the entrance monitoring axle counter based on the information obtained from the zone controller, and matches the occupied / idle status information of the corresponding physical segments from the axle counter subsystem. A physical segment may contain multiple axle counter segments to determine the occupied / idle status of the entrance monitoring axle counter.

9. The rail transit full-line screening-free system as claimed in claim 6, characterized in that: When the zone controller reports that the entrance monitoring is normal, the data storage unit determines that the entrance monitoring is normal; When the zone controller reports that the entrance monitoring is normal, the data storage unit determines that the entrance monitoring is normal; When the zone controller reports that the entrance monitoring is abnormal, if the computer interlocking subsystem communicating with the zone controller is communicating normally, the data storage unit determines that the entrance monitoring is abnormal; When the zone controller reports an abnormality in entrance monitoring, if there is a communication failure in the computer interlocking subsystem communicating with the zone controller, and the data storage unit confirms that the relevant physical segment sent by the axle counting subsystem has an occupied status, the data storage unit determines that the entrance monitoring is abnormal; When the zone controller reports an abnormality in entrance monitoring, if there is a communication failure in the computer interlocking subsystem communicating with the zone controller, and the data storage unit confirms that the relevant physical segments sent by the axle counting subsystem are all idle, the data storage unit determines that there is no abnormality in the entrance monitoring.

10. The rail transit full-line screening-free system according to claim 6, characterized in that: The zone controller continuously monitors the communication status of the computer interlocking subsystem and the entrance monitoring for abnormalities.

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