Method and device for automatically identifying white light band fault in CTC system

Abstract

The invention relates to a method and a device for automatically identifying a white light band fault in a CTC system, which can effectively detect the white light band fault left after a train passes by by utilizing the characteristics of train occupation and clearing continuity and automatic unlocking of a track circuit after the train is cleared. And the white light band fault caused by the fact that the train is occupied and lost in the station and cannot be successfully unlocked is avoided. The detection queue is adopted to pre-store the information of the track circuit equipment with the large probability of white light band faults, and the track circuit equipment in the detection queue is subjected to multiple times of cyclic detection in the detection period, so that the situation that the track circuit equipment is misreported due to delayed unlocking or data transmission indication time sequence errors can be avoided. If continuous white light band faults occur in the same route, the track circuit equipment with the first white light band fault can be positioned and reported, and the situation that the positioning of the fault starting place is affected due to the fact that multiple pieces of track circuit equipment with the white light band faults are prompted at the same time is avoided.

Description

Technical Field

[0001] The invention relates to a railway control system, and in particular to a method and a device for automatically identifying white light band faults in a CTC system. Background Art

[0002] In the railway control system, the track circuit "white light band" fault means that when the train enters a certain track section, the track relay of the corresponding section is still in the energized state or the energized and deenergized state, indicating that the track circuit has lost the function of checking the occupancy status of the track section. This phenomenon is usually called "bad track circuit shunt" or "unable to crush", which will seriously affect the safety of train operation.

[0003] The statements herein merely provide background art related to the present invention and do not necessarily constitute prior art. Summary of the invention

[0004] The purpose of the present invention is to provide a method and device for automatically identifying white light band faults in a CTC system, which can effectively detect white light band faults left after a train has passed, as well as white light band faults caused by the train losing occupancy in the station and failing to successfully unlock the train, and can avoid false alarms caused by delayed unlocking of track circuit equipment or errors in the timing of data transmission.

[0005] In order to achieve the above object, the present invention provides a method for automatically identifying white light band failure 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 is identified as having a white light band fault, and the current track circuit equipment is added to the detection queue;

[0007] After the current track circuit device is cleared, if the track circuit device in front of the current track circuit device is locked and unoccupied, the track circuit device in front is identified as having a white light band fault, and the track circuit device in front is added to the detection queue;

[0008] The track circuit devices in the detection queue are periodically detected, and the track circuit devices with misdetection are removed from the detection queue.

[0009] Acquire station field representation information in real time, acquire the route direction of the track circuit equipment according to the station field representation information, and acquire the state change of the track circuit equipment according to each change of the station field representation information;

[0010] The station yard representation information includes: the occupied, cleared, locked and unlocked status of the track circuit equipment, and the approach direction of the track circuit equipment.

[0011] Acquire track circuit topology connection information, and acquire the preceding track circuit device to which the current track circuit device is connected according to the track circuit topology connection information and the approach direction;

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

[0013] If the current track circuit device is an in-station device, the status of the current track circuit device and the connected front track circuit device are continuously determined according to the station field representation information;

[0014] The in-station equipment includes: tracks, switches, and non-switch sections.

[0015] If the current track circuit device is a section track, and the track circuit device ahead of the section track is a station device, the status of the current track circuit device and the track circuit device ahead of the connection thereof will continue to be determined based on the station field representation information.

[0016] If the current track circuit device is a section track, and the front track circuit device connected to the section track is a section track, it is identified that the current track circuit device has no white light band fault.

[0017] The detection queue includes: information of 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 behind in the route direction.

[0019] A detection cycle is set to cyclically detect the track circuit equipment in the detection queue, and the detection cycle is 5 seconds to 8 seconds.

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

[0021] If the track circuit equipment in the detection queue remains in a locked state after the preset detection time has passed, and it is judged based on the station field indication information that the track circuit equipment connected behind the track circuit equipment in the approach direction is in a locked state, the track circuit equipment will be removed from the detection queue, the track circuit equipment connected behind 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 in a locked state after the preset detection time has passed, and it is judged based on the station field indication information that the track circuit equipment connected behind the track circuit equipment in the approach direction is in an unlocked state, 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 corresponding fault information will be output.

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

[0024] Station field representation server, used to provide station field representation information in real time;

[0025] The intelligent control server is used to automatically identify the track circuit with white light band fault based on the station representation information and the track circuit topology connection information.

[0026] The intelligent control server is deployed in a dispatching center or each station.

[0027] The present invention utilizes the continuity of train occupation and clearing and the characteristics of automatic unlocking of the track circuit after the train is cleared, and can effectively detect white light belt faults left after the train passes, as well as white light belt faults caused by the train losing occupancy in the station and failing to successfully unlock. The detection queue is used to pre-store information on track circuit equipment with a high probability of white light belt faults, and the track circuit equipment in the detection queue is repeatedly cycled during the detection period, which can avoid false alarms caused by delayed unlocking of the track circuit equipment or errors in the timing of data transmission. If continuous left-over white light belt faults occur in the same route, the first track circuit equipment with a white light belt fault can be located and reported, avoiding the simultaneous prompting of multiple track circuit equipment with white light belt faults, which affects the positioning of the fault origin. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0029] Figure 2 It is a flow chart for automatically identifying and detecting track circuit equipment with white light band faults.

[0030] Figure 3 It is a flow chart for periodic inspection of track circuit equipment in the inspection queue. DETAILED DESCRIPTION

[0031] The following is based on Figure 1 to Figure 3 , specifically describe the preferred embodiments of the present invention.

[0032] In the CTC system (Centralized Traffic Control), the faulty white light band of the track circuit in the station may be left by a train passing by, or it may be caused by the loss of occupancy during the train entering or leaving the station, resulting in the inability to unlock the route normally. For the white light band of the track circuit in the station, there are three locations where it occurs: turnouts, tracks, and non-turnout sections. Automatically identifying the faulty white light band can promptly notify the dispatcher to initiate emergency measures when a fault occurs, which can greatly avoid the occurrence of traffic accidents.

[0033] like Figure 1 As shown, the present invention provides a device for automatically identifying white light band faults in a CTC system, comprising: an intelligent control server 1 and a station field representation server 2, wherein the intelligent control server 1 is deployed in a dispatching center or each station, and the station field representation server 2 provides station field representation information to the intelligent control server 1 in real time, and the intelligent control server 1 automatically identifies the track circuit with a white light band fault according to the station field representation information and the track circuit topology connection information.

[0034] The present invention provides a method for automatically identifying a white light band fault in a CTC system, which specifically comprises the following steps:

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

[0036] Step S2: the intelligent control server 1 periodically detects the track circuit devices in the detection queue, and removes the track circuit devices with misdetection from the detection queue.

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

[0038] Step S1.1, the intelligent control server 1 obtains the station representation information from the station representation server 2 in real time, and obtains the approach direction of the current track circuit equipment.

[0039] The station yard representation information includes: the occupied, cleared, locked and unlocked status of the track circuit equipment, and the approach direction of the track circuit equipment.

[0040] The track circuit equipment includes: tracks, switches, unswitch sections, section tracks, etc., wherein the tracks, switches and unswitch sections constitute the in-station equipment.

[0041] Step S1.2: The intelligent control server 1 obtains the preceding track circuit device to which the current track circuit device is connected based on the track circuit topology connection information and the approach direction of the current track circuit device.

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

[0043] Step S1.3: The intelligent control server 1 determines whether the current track circuit equipment is an in-station equipment. If so, proceed to step S1.6; if not, proceed to step S1.4.

[0044] After the current track circuit equipment is cleared, it is necessary to determine whether the current track circuit equipment is locked, and whether the track circuit equipment ahead is locked. Because only the turnouts, tracks and non-turnout sections are locked in the station, a judgment is required.

[0045] Step S1.4: The intelligent control server 1 determines whether the current track circuit equipment is a section track. If so, proceed to step S1.5; if not, end the process.

[0046] Because there is no locked state for section track circuit equipment, there is no need to determine whether the current equipment is locked if it is not section equipment.

[0047] Step S1.5, the intelligent control server 1 determines whether the front track circuit device connected to the section track as the current track circuit device is an in-station device, if so, proceed to step S1.6, if not, end the process.

[0048] If it is a section track circuit equipment, there may be unoccupied track circuits in the station ahead after the section track circuit is cleared. This situation will also cause a residual white light band, so it is necessary to determine the equipment type of the equipment ahead of the section track.

[0049] Step S1.6: The intelligent control server 1 determines whether the current track circuit equipment is cleared according to the station field information. If so, proceed to step S1.7; if not, end the process.

[0050] Step S1.7, the intelligent control server 1 determines whether the front track circuit device to which the current track circuit device is connected is in a locked and unoccupied state. If so, it is determined that the white light band failure is caused by the train losing occupancy in the station, resulting in the track circuit device being unable to be unlocked normally, so the front track circuit device 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 being cleared. If so, it is determined that the white light band left after the train is cleared is faulty, 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 a detection cycle and cyclically detects the queue.

[0054] The detection cycle is set to 5-8 seconds, and the detection queue includes: information about track circuit equipment that is most likely to have a white light band failure, and the information about the track circuit equipment includes: equipment name, equipment type, time of failure, and equipment name of the track circuit equipment connected behind in the approach direction.

[0055] Step S2.2, the intelligent control server 1 takes out 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 locked according to the station field indication information. If so, proceed to step S2.3, if not, proceed to step 2.7.

[0056] Step S2.3, the intelligent control server 1 determines whether the current time minus the time when the fault occurs is greater than the detection period. If not, proceed to step S2.2 and wait for the next detection. If so, proceed to step S2.4.

[0057] Step S2.4, the intelligent control server 1 determines whether the track circuit equipment connected behind the current track circuit equipment in the approach direction is in a locked state according to the station field indication information, if so, proceed to step S2.5, if not, proceed to step S2.6.

[0058] Step S2.5: The intelligent control server 1 identifies the track circuit equipment connected behind as having a white light band fault, removes the current track circuit equipment from the detection queue, and outputs 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 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 equipment is taken out cyclically to determine whether the current track circuit equipment is still in a locked state. If it is still in a locked state after the preset detection time, it is considered that the automatic delayed unlocking of the current track circuit equipment has failed and it is determined to be a white light band failure. If it becomes an unlocked state after the preset detection time, it will be removed from the detection queue.

[0062] Taking into account that if white light band faults occur continuously, only the first track circuit device with fault needs to be reported. Therefore, it is necessary to determine whether the rear track circuit device in the approach direction also has a white light band fault. If it is a white light band fault, the rear track circuit device will be reported; otherwise, the current track circuit device will be reported and removed from the detection queue to avoid repeated detection.

[0063] The present invention utilizes the continuity of train occupation and clearing and the characteristics of automatic unlocking of the track circuit after the train is cleared, and can effectively detect white light belt faults left after the train passes, as well as white light belt faults caused by the train losing occupancy in the station and failing to successfully unlock. The detection queue is used to pre-store information on track circuit equipment with a high probability of white light belt faults, and the track circuit equipment in the detection queue is repeatedly cycled during the detection period, which can avoid false alarms caused by delayed unlocking of the track circuit equipment or errors in the timing of data transmission. If continuous left-over white light belt faults occur in the same route, the first track circuit equipment with a white light belt fault can be located and reported, avoiding the simultaneous prompting of multiple track circuit equipment with white light belt faults, which affects the positioning of the fault origin.

[0064] It should be noted that, in the embodiments of the present invention, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0065] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

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

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

[0068] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

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

[0070] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as limiting the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present invention. After reading the above content, it will be obvious for those skilled in the art to make various modifications and substitutions to the present invention. Therefore, the scope of protection of the present invention should be defined by the attached claims.

Claims

1. A method for automatically identifying white light band failure 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 is identified as having a white light band fault, and the current track circuit equipment is added to the detection queue; After the current track circuit device is cleared, if the track circuit device in front of the current track circuit device is locked and unoccupied, the track circuit device in front is identified as having a white light band fault, and the track circuit device in front is added to the detection queue; The track circuit devices in the detection queue are periodically detected, and the track circuit devices with misdetection are removed from the detection queue.

2. The method for automatically identifying white light band failure in a CTC system according to claim 1, characterized in that: Acquire station field representation information in real time, acquire the route direction of the track circuit equipment according to the station field representation information, and acquire the state change of the track circuit equipment according to each change of the station field representation information; The station yard representation information includes: the occupied, cleared, locked and unlocked status of the track circuit equipment, and the approach direction of the track circuit equipment.

3. The method for automatically identifying white light band failure in a CTC system as claimed in claim 2, characterized in that: Acquire track circuit topology connection information, and acquire the preceding track circuit device to which the current track circuit device is connected according to the track circuit topology connection information and the approach direction; The track circuit topology connection information includes: the device name of the track circuit device, the station number of the station where the device is located, the device type, and the connection relationship between the devices.

4. The method for automatically identifying white light band failure in a CTC system as claimed in claim 2, characterized in that: If the current track circuit device is an in-station device, the status of the current track circuit device and the connected front track circuit device are continuously determined according to the station field representation information; The in-station equipment includes: tracks, switches, and non-switch sections.

5. The method for automatically identifying white light band failure in a CTC system as claimed in claim 4, characterized in that: If the current track circuit device is a section track, and the track circuit device ahead of the section track is a station device, the status of the current track circuit device and the track circuit device ahead of the connection thereof will continue to be determined based on the station field representation information.

6. The method for automatically identifying white light band failure in a CTC system as claimed in claim 4, characterized in that: If the current track circuit device is a section track, and the front track circuit device connected to the section track is a section track, it is identified that the current track circuit device has no white light band fault.

7. The method for automatically identifying white light band failure in a CTC system as claimed in claim 1, characterized in that: The detection queue includes: information of 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 behind in the route direction.

8. The method for automatically identifying white light band failure in a CTC system as claimed in claim 7, characterized in that: A detection cycle is set to cyclically detect the track circuit equipment in the detection queue, and the detection cycle is 5 seconds to 8 seconds.

9. The method for automatically identifying white light band failure in a CTC system as claimed in claim 8, characterized in that: If the track circuit equipment in the detection queue changes from a locked state to an unlocked state within a preset detection time, the track circuit equipment is removed from the detection queue.

10. The method for automatically identifying white light band failure in a CTC system according to claim 8, characterized in that: If the track circuit equipment in the detection queue remains in a locked state after the preset detection time has passed, and it is judged based on the station field indication information that the track circuit equipment connected behind the track circuit equipment in the approach direction is in a locked state, the track circuit equipment will be removed from the detection queue, the track circuit equipment connected behind will be identified as having a white light band fault, and the corresponding fault information will be output.

11. The method for automatically identifying white light band failure in a CTC system according to claim 8, characterized in that: If the track circuit equipment in the detection queue remains in a locked state after the preset detection time has passed, and it is judged based on the station field indication information that the track circuit equipment connected behind the track circuit equipment in the approach direction is in an unlocked state, 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 corresponding fault information will be output.

12. A device for automatically identifying white light band failure in a CTC system, used to implement the method for automatically identifying white light band failure in a CTC system as claimed in any one of claims 1 to 11, characterized in that: Include: Station field representation server, used to provide station field representation information in real time; The intelligent control server is used to automatically identify the track circuit with white light band fault based on the station representation information and the track circuit topology connection information.

13. The device for automatically identifying white light band failure in a CTC system according to claim 12, characterized in that: The intelligent control server is deployed in a dispatching center or each station.

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