A method and apparatus for automatically identifying white light band faults in a CTC system.

Abstract

A method and apparatus for automatically identifying white light strip faults in a CTC system utilizes the continuity of train occupancy and clearance, as well as the automatic unlocking of track circuits after train clearance. This effectively detects white light strip faults left behind after a train has passed, and faults caused by trains losing occupancy within a station and failing to unlock successfully. A detection queue is used to pre-store information on track circuit equipment with a high probability of experiencing white light strip faults. Multiple cyclical checks are performed on the track circuit equipment in the detection queue within the detection cycle, avoiding false alarms due to delayed unlocking or incorrect data transmission timing. If consecutive white light strip faults occur on the same route, the first track circuit equipment with a white light strip fault can be located and reported, preventing simultaneous alerts for multiple faulty track circuit equipment and thus avoiding interference with the location of the fault's origin.

Description

Technical Field

[0001] This invention relates to railway control systems, and more particularly to a method and apparatus for automatically identifying white light band faults in a CTC system. Background Technology

[0002] In railway control systems, a "white light band" fault in track circuits refers to a situation where, when a train enters a certain track section, the corresponding track relay remains in the energized state or intermittently energized, indicating that the track circuit has lost its function of checking the occupancy status of the track section. This phenomenon is commonly referred to as "bad track circuit shunt" or "inability to shut down," and it can seriously affect train operation safety.

[0003] The statements herein provide only background information in relation to this invention and do not necessarily constitute prior art. Summary of the Invention

[0004] The purpose of this invention is to provide a method and apparatus for automatically identifying white light strip faults in a CTC system. This method can effectively detect white light strip faults left behind after a train has passed, as well as white light strip faults caused by trains losing their occupancy in the station and failing to unlock successfully. It can also avoid false alarms caused by track circuit equipment delays in unlocking or errors in the timing of data transmission.

[0005] To achieve the above objectives, the present invention provides a method for automatically identifying white light band faults in a CTC system, comprising:

[0006] After the current track circuit equipment is cleared, if the current track circuit equipment is in a locked state, the current track circuit equipment will be identified as having a white light band fault and added to the detection queue.

[0007] After the current track circuit equipment is cleared, if the track circuit equipment connected to the current track circuit equipment is locked and not occupied, the track circuit equipment in front is identified as having a white light band fault and is added to the detection queue.

[0008] The track circuit devices in the detection queue are periodically inspected, and track circuit devices that are found to be falsely detected are removed from the detection queue.

[0009] Real-time acquisition of station display information; acquisition of the route direction of the track circuit equipment based on the station display information; acquisition of the state change of the track circuit equipment based on each change in the station display information.

[0010] The station information includes: the status of track circuit equipment being occupied, cleared, locked, and unlocked, as well as the direction of travel for the track circuit equipment.

[0011] Obtain track circuit topology connection information, and based on the track circuit topology connection information and the route direction, obtain the track circuit equipment connected to the current track circuit equipment ahead;

[0012] The track circuit topology connection information includes: the device name of the track circuit equipment, the station number of the station where the equipment is located, the equipment type, and the connection relationship between the equipment.

[0013] If the current track circuit equipment is station-based equipment, then the status of the current track circuit equipment and the track circuit equipment connected ahead of it will be determined based on the station display information.

[0014] The station equipment includes: tracks, turnouts, and sections without turnouts.

[0015] If the current track circuit equipment is a section track, and the track circuit equipment connected to the section track is station equipment, then the status of the current track circuit equipment and the track circuit equipment connected to it will continue to be determined based on the station indication information.

[0016] If the current track circuit device is a section track, and the track circuit device connected to the section track is also a section track, then it is identified that the current track circuit device has not experienced a white light band fault.

[0017] The detection queue contains information about the track circuit equipment;

[0018] The information of the track circuit equipment includes: equipment name, equipment type, time of failure, and equipment name of the track circuit equipment connected to the rear in the direction of the route.

[0019] A detection cycle is set, and the track circuit devices in the detection queue are cyclically detected. The detection cycle is 5 to 8 seconds.

[0020] If, within a preset detection time, the track circuit device in the detection queue changes from a locked state to an unlocked state, then the track circuit device is removed from the detection queue.

[0021] If the track circuit equipment in the detection queue remains locked after the preset detection time has elapsed, and the track circuit equipment connected to the track circuit equipment behind the track circuit equipment in the direction of the route is locked according to the station indication information, then the track circuit equipment will be removed from the detection queue, the track circuit equipment connected to the track circuit equipment behind it will be identified as having a white light band fault, and the corresponding fault information will be output.

[0022] If the track circuit equipment in the detection queue remains locked after the preset detection time has elapsed, and the track circuit equipment connected to the track circuit equipment behind the track circuit equipment in the direction of the route is unlocked according to the station indication information, then the track circuit equipment will be removed from the detection queue, the track circuit equipment will be identified as having a white light band fault, and the corresponding fault information will be output.

[0023] The present invention also provides a device for automatically identifying white light band faults in a CTC system, comprising:

[0024] The station display server is used to provide station display information in real time;

[0025] The intelligent control server is used to automatically identify track circuits with white light strip faults based on station display information and track circuit topology connection information.

[0026] The intelligent control server is deployed in the dispatch center or at each station.

[0027] This invention utilizes the continuity of train occupancy and clearance, as well as the automatic unlocking of track circuits after a train clears, to effectively detect white light band faults left behind after a train has passed, and white light band faults caused by trains failing to unlock due to lost occupancy within the station. A detection queue is used to pre-store information on track circuit equipment that is highly likely to have experienced white light band faults. Multiple cyclical checks are performed on the track circuit equipment in the detection queue within the detection cycle, avoiding false alarms caused by delayed unlocking or incorrect data transmission timing. If consecutive white light band faults occur on the same route, the first track circuit equipment experiencing a white light band fault can be located and reported, avoiding simultaneous alerts for multiple faulty track circuit equipment and thus preventing difficulties in locating the fault's origin. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of a device for automatically identifying white light band faults in a CTC system provided by the present invention.

[0029] Figure 2 This is a flowchart of the track circuit equipment that automatically identifies and detects white light band faults.

[0030] Figure 3 This is a flowchart of the periodic testing of track circuit equipment in the testing queue. Detailed Implementation

[0031] The following is based on Figures 1-3 The preferred embodiments of the present invention will be described in detail below.

[0032] In the CTC (Centralized Traffic Control) system, the white light stripe indicating a fault in the station's track circuits can be left behind by passing trains, or it may be caused by a train entering or leaving the station and losing its track position, preventing the track from unlocking properly. The white light stripe can occur at three locations: switches, tracks, and sections without switches. Automatic identification of faulty white light stripes allows for timely notification of the dispatcher to initiate emergency response procedures, greatly reducing the risk of train accidents.

[0033] like Figure 1 As shown, the present invention provides a device for automatically identifying white light strip faults in a CTC system, comprising: an intelligent control server 1 and a station display server 2. The intelligent control server 1 is deployed in the dispatch center or at each station. The station display server 2 provides station display information to the intelligent control server 1 in real time. The intelligent control server 1 automatically identifies the track circuit that has a white light strip fault based on the station display information and the track circuit topology connection information.

[0034] This invention provides a method for automatically identifying white light band faults in a CTC system, specifically comprising the following steps:

[0035] Step S1: The intelligent control server 1 automatically identifies and detects track circuit equipment that has a white light band fault, and puts the detected track circuit equipment into the detection queue.

[0036] Step S2: The intelligent control server 1 periodically detects the track circuit devices in the detection queue and removes track circuit devices that have been falsely detected from the detection queue.

[0037] like Figure 2 As shown, step S1 specifically includes the following steps:

[0038] Step S1.1: The intelligent control server 1 obtains the station indication information from the station indication server 2 in real time and obtains the current route direction of the track circuit equipment.

[0039] The station information includes: the status of track circuit equipment being occupied, cleared, locked, and unlocked, as well as the direction of travel for the track circuit equipment.

[0040] The track circuit equipment includes: tracks, turnouts, turnout-free sections, and track sections, wherein the tracks, turnouts, and turnout-free sections constitute the station equipment.

[0041] Step S1.2: The intelligent control server 1 obtains the track circuit equipment connected to the track circuit equipment ahead of it based on the track circuit topology connection information and the current track circuit equipment's route direction.

[0042] The track circuit topology connection information includes: the equipment name of the track circuit device, the station number of the station where the device is located, the equipment type, and the connection relationship between the devices.

[0043] Step S1.3: The intelligent control server 1 determines whether the current track circuit equipment is station equipment. If yes, proceed to step S1.6; otherwise, proceed to step S1.4.

[0044] After the current track circuit equipment has been cleared, it is necessary to determine whether both the current track circuit equipment and the track circuit equipment ahead are locked. Since only switches, tracks, and sections without switches within the station are locked, this determination is required.

[0045] Step S1.4: The intelligent control server 1 determines whether the current track circuit equipment is a section track. If yes, proceed to step S1.5; otherwise, end the process.

[0046] Since the track circuit equipment in the section does not have a locked state, it is not necessary to determine whether the current equipment is locked if it is not a section equipment.

[0047] Step S1.5: The intelligent control server 1 determines whether the track circuit equipment connected to the section track that is the current track circuit equipment is an in-station equipment. If yes, proceed to step S1.6; otherwise, end the process.

[0048] If it is a section track circuit device, there may be a situation where, after the section track circuit is cleared, there is a track circuit in the station ahead that is not occupied. This situation will also cause a white light band to remain. Therefore, it is necessary to determine the type of equipment ahead of the section track.

[0049] Step S1.6: The intelligent control server 1 determines whether the current track circuit equipment has been cleared based on the station display information. If yes, proceed to step S1.7; otherwise, end the process.

[0050] Step S1.7: The intelligent control server 1 determines whether the track circuit equipment connected to the current track circuit equipment is locked and not occupied. If so, it is determined that the white light strip failure is caused by the loss of occupancy of the train in the station, which prevents the track circuit equipment from being unlocked normally. Therefore, the track circuit equipment in front is added to the detection queue. If not, proceed to step S1.8.

[0051] Step S1.8: The intelligent control server 1 determines whether the current track circuit equipment is in a locked state after it has been cleared. If so, it is determined that the white light strip fault is left after the train has cleared, so the current track circuit equipment is added to the detection queue. If not, the process ends.

[0052] like Figure 3 As shown, step S2 specifically includes the following steps:

[0053] Step S2.1: The intelligent control server 1 sets the detection cycle and performs cyclic detection of the queue.

[0054] The detection cycle is set to 5-8 seconds. The detection queue contains information on track circuit equipment that is likely to have experienced a white light band malfunction. The information on the track circuit equipment includes: equipment name, equipment type, time of malfunction, and the equipment name of the track circuit equipment connected to the rear in the direction of travel.

[0055] Step S2.2: The intelligent control server 1 takes a single track circuit device from the detection queue as the current track circuit device, and determines whether the current track circuit device is still in a locked state according to the station indication information. If yes, proceed to step S2.3; otherwise, proceed to step 2.7.

[0056] Step S2.3: The intelligent control server 1 determines whether the current time minus the time of the fault is greater than the detection cycle. If not, proceed to step S2.2 and wait for the next detection. If yes, proceed to step S2.4.

[0057] Step S2.4: The intelligent control server 1 determines whether the track circuit equipment connected to the track circuit equipment behind the current track circuit equipment in the direction of the route is locked based on the station display information. If yes, proceed to step S2.5; otherwise, proceed to step S2.6.

[0058] Step S2.5: The intelligent control server 1 identifies the track circuit equipment connected to the back as having a white light band fault, removes the current track circuit equipment from the detection queue, and outputs the corresponding fault information.

[0059] Step S2.6: The intelligent control server 1 identifies the current track circuit equipment as having a white light band fault, removes the current track circuit equipment from the detection queue, and outputs the corresponding fault information.

[0060] Step S2.7: The intelligent control server 1 removes the current track circuit equipment from the detection queue and ends the process.

[0061] The current track circuit device is retrieved in a loop. It is determined whether the current track circuit device is still locked. If it is still locked after the preset detection time, the automatic delay unlocking of the current track circuit device is considered to have failed and is judged to be a white light strip fault. If it becomes unlocked after the preset detection time, it is removed from the detection queue.

[0062] Considering that only the first track circuit device that malfunctions when white light band faults occur consecutively, it is necessary to determine whether the track circuit device behind it in the direction of travel also has a white light band fault. If it does, report the track circuit device behind it; otherwise, report the current track circuit device and remove it from the detection queue to avoid duplicate detection.

[0063] This invention utilizes the continuity of train occupancy and clearance, as well as the automatic unlocking of track circuits after a train clears, to effectively detect white light band faults left behind after a train has passed, and white light band faults caused by trains failing to unlock due to lost occupancy within the station. A detection queue is used to pre-store information on track circuit equipment that is highly likely to have experienced white light band faults. Multiple cyclical checks are performed on the track circuit equipment in the detection queue within the detection cycle, avoiding false alarms caused by delayed unlocking or incorrect data transmission timing. If consecutive white light band faults occur on the same route, the first track circuit equipment experiencing a white light band fault can be located and reported, avoiding simultaneous alerts for multiple faulty track circuit equipment and thus preventing difficulties in locating the fault's origin.

[0064] It should be noted that, in the embodiments of the present invention, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0065] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0066] It should be understood that, when used in this specification and the appended claims, the term "comprising" indicates the presence of the described feature, integral, step, operation, element and / or component, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0067] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0068] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0069] As used in this specification and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrases "if determined" or "if [described condition or event] is detected" may be interpreted, depending on the context, as "once determined," "in response to determination," "once [described condition or event] is detected," or "in response to detection of [described condition or event]."

[0070] Although the present invention has been described in detail through the preferred embodiments above, it should be understood that the above description should not be considered as a limitation of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present invention. After reading the above content, various modifications and substitutions to the present invention will be obvious to those skilled in the art. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A method for automatically identifying white light band faults in a CTC system, characterized in that, Include: After the current track circuit equipment is cleared, if the current track circuit equipment is in a locked state, the current track circuit equipment will be identified as having a white light band fault and added to the detection queue. After the current track circuit equipment is cleared, if the track circuit equipment connected to the current track circuit equipment is locked and not occupied, the track circuit equipment in front is identified as having a white light band fault and is added to the detection queue. The track circuit devices in the detection queue are periodically inspected, and track circuit devices that are found to be falsely detected are removed from the detection queue. Real-time acquisition of station display information; acquisition of the route direction of the track circuit equipment based on the station display information; acquisition of the state change of the track circuit equipment based on each change in the station display information. The station information includes: the status of the track circuit equipment being occupied, cleared, locked, and unlocked, as well as the direction of the track circuit equipment's route; Obtain track circuit topology connection information, and based on the track circuit topology connection information and the route direction, obtain the track circuit equipment connected to the current track circuit equipment ahead; The track circuit topology connection information includes: the equipment name of the track circuit equipment, the station number of the station where the equipment is located, the equipment type, and the connection relationship between the equipment; If the current track circuit equipment is station-based equipment, then the status of the current track circuit equipment and the track circuit equipment connected ahead of it will continue to be determined based on the station indication information. The station equipment includes: tracks, turnouts, and sections without turnouts; If the current track circuit equipment is a section track, and the track circuit equipment connected to the section track is station equipment, then the status of the current track circuit equipment and the track circuit equipment connected to it will continue to be determined according to the station display information. If the current track circuit device is a section track, and the track circuit device connected to the section track is also a section track, then it is identified that the current track circuit device has not experienced a white light band fault.

2. The method for automatically identifying white light band faults in the CTC system as described in claim 1, characterized in that, The detection queue contains information about the track circuit equipment; The information of the track circuit equipment includes: equipment name, equipment type, time of failure, and equipment name of the track circuit equipment connected to the rear in the direction of the route.

3. The method for automatically identifying white light band faults in the CTC system as described in claim 2, characterized in that, A detection cycle is set, and the track circuit devices in the detection queue are cyclically detected. The detection cycle is 5 to 8 seconds.

4. The method for automatically identifying white light band faults in the CTC system as described in claim 3, characterized in that, If, within a preset detection time, the track circuit device in the detection queue changes from a locked state to an unlocked state, then the track circuit device is removed from the detection queue.

5. The method for automatically identifying white light band faults in the CTC system as described in claim 3, characterized in that, If the track circuit equipment in the detection queue remains locked after the preset detection time has elapsed, and the track circuit equipment connected to the track circuit equipment behind the track circuit equipment in the direction of the route is locked according to the station indication information, then the track circuit equipment will be removed from the detection queue, the track circuit equipment connected to the track circuit equipment behind it will be identified as having a white light band fault, and the corresponding fault information will be output.

6. The method for automatically identifying white light band faults in the CTC system as described in claim 3, characterized in that, If the track circuit equipment in the detection queue remains locked after the preset detection time has elapsed, and the track circuit equipment connected to the track circuit equipment behind the track circuit equipment in the direction of the route is unlocked according to the station indication information, then the track circuit equipment will be removed from the detection queue, the track circuit equipment will be identified as having a white light band fault, and the corresponding fault information will be output.

7. An apparatus for automatically identifying white light band faults in a CTC system, used to implement the method for automatically identifying white light band faults in a CTC system as described in any one of claims 1-6, characterized in that, Include: The station display server is used to provide station display information in real time; The intelligent control server is used to automatically identify track circuits with white light strip faults based on station display information and track circuit topology connection information.

8. The device for automatically identifying white light band faults in the CTC system as described in claim 7, characterized in that, The intelligent control server is deployed in the dispatch center or at each station.

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