Tracking method and device

Abstract

The present invention discloses a tracking method and device, belonging to the field of railway technology. The method comprises: determining a moving unit according to a first occupancy state of the target segment set at the current moment, and a second occupancy state of the target segment set at the next moment; wherein the target segment set comprises at least two adjacent segments, and the target segment set comprises a moving unit; and tracking the moving unit according to the station field representation to track the power equipment. Through the above technical solution, the moving unit is determined only through the occupancy state determined by the target segment set, without the aid of any additional positioning equipment, and then the power equipment is tracked, which reduces the positioning cost and provides a new solution for tracking power equipment on railways.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of railway technology, and in particular to a tracking method and device. Background Art

[0002] The existing methods for tracking power equipment in railways are to use GPS or Beidou positioning, as well as speed and ground transponders and other location tracking methods. However, these tracking methods usually require the installation of corresponding positioning equipment on locomotives, which is expensive. At present, its coverage rate is relatively low, especially for old freight stations. Therefore, how to simply and effectively track the power equipment in large marshalling yards is particularly important. Summary of the invention

[0003] The present invention provides a tracking method and a device to realize the positioning of a motion unit and provide a basis for railway staff.

[0004] In a first aspect, an embodiment of the present invention provides a tracking method, the method comprising:

[0005] Determine a motion unit according to a first occupancy state of the target segment set at a current moment and a second occupancy state of the target segment set at a next moment; wherein the target segment set includes at least two adjacent segments, and the target segment set includes the motion unit;

[0006] According to the station representation, the motion unit is tracked to track the power equipment.

[0007] Optionally, determining the motion unit according to a first occupancy state of the target segment set at a current moment and a second occupancy state of the target segment set at a next moment includes:

[0008] determining a first target segment from the target segment set according to a first occupancy state of the target segment set at a current moment;

[0009] determining a second target segment from the target segment set according to a second occupancy state of the target segment set at the next moment;

[0010] A motion unit is determined according to a position of the first target segment in the target segment set and a position of the second target segment in the target segment set.

[0011] Optionally, determining the motion unit according to a first occupancy state of the target segment set at a current moment and a second occupancy state of the target segment set at a next moment includes:

[0012] Determine a state change of the segments in the target segment set according to a first occupancy state of the target segment set at a current moment and a second occupancy state of the target segment set at a next moment;

[0013] The motion unit is determined according to the state change of the segment.

[0014] Optionally, the method further includes:

[0015] If at least two motion units are identified to be in the same segment, the same segment is used as an aggregate segment;

[0016] Determining the order of the at least two motion units in the aggregation section according to the time and direction of the motion units entering the aggregation section;

[0017] According to the order, the power equipment corresponding to the at least two motion units are dequeued and managed.

[0018] Optionally, the time when the motion unit enters the aggregation section is determined by:

[0019] Determining the last section passed by the motion unit when entering the aggregation section;

[0020] The time when the occupancy state of the previous segment changes from occupied to cleared is used as the time when the motion unit enters the aggregation segment.

[0021] Optionally, the direction in which the motion unit enters the aggregation section is determined by:

[0022] Determining the last section passed by the motion unit when entering the aggregation section;

[0023] The identification information of the previous segment is used as the direction for the motion unit to enter the aggregation segment.

[0024] Optionally, the method further includes:

[0025] The motion unit is marked for display to the user.

[0026] In a second aspect, an embodiment of the present invention further provides a motion unit tracking device, the device comprising:

[0027] a motion unit determination module, configured to determine a motion unit according to a first occupancy state of the target segment set at a current moment and a second occupancy state of the target segment set at a next moment; wherein the target segment set includes at least two adjacent segments, and the target segment set includes a motion unit;

[0028] The tracking module is used to track the motion unit according to the station field representation so as to track the power equipment.

[0029] The technical solution of the embodiment of the present invention determines the moving unit according to the first occupancy state of the target segment set at the current moment and the second occupancy state of the target segment set at the next moment; wherein the target segment set includes at least two adjacent segments, and the target segment set includes the moving unit, and then the moving unit is tracked according to the station field representation to track the power equipment. The above technical solution determines the moving unit and then tracks the power equipment only by the occupancy state determined by the target segment set without the aid of any positioning equipment, thereby reducing the positioning cost and providing a new solution for tracking power equipment on railways. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a flow chart of a tracking method provided by Embodiment 1 of the present invention;

[0031] Figure 2 is a flow chart of a tracking method provided by Embodiment 2 of the present invention;

[0032] Figure 3 It is a structural schematic diagram of a tracking device provided in Embodiment 3 of the present invention. DETAILED DESCRIPTION

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0034] Embodiment 1

[0035] Figure 1 It is a flow chart of a tracking method provided in the first embodiment of the present invention. This embodiment can be applicable to the situation of tracking power equipment in a large marshalling yard. The method can be executed by a motion unit tracking device, which can be implemented by software and / or hardware and can be integrated into an electronic device that carries the tracking function, such as a server.

[0036] like Figure 1 As shown, the method may specifically include:

[0037] S110 , determining a motion unit according to a first occupancy state of the target segment set at a current moment and a second occupancy state of the target segment set at a next moment.

[0038] In this embodiment, the motion unit refers to the mapping feature of the power equipment in the railway in the station yard representation, for example, it can be a red light band. Further, the power equipment can be a locomotive, and the locomotive can be a main locomotive, a shunting locomotive, and a motor vehicle. In this embodiment, the main locomotive is preferably used. The so-called main locomotive refers to the locomotive that undertakes the traction task; the so-called shunting locomotive refers to the locomotive used for shunting operations such as train formation, dismantling, line transfer, and vehicle delivery.

[0039] The so-called station yard display includes but is not limited to the status information of all equipment managed by the interlocking system. For example, it can be the track status, such as the switch display status (position, reverse position), locking status, abnormal information, section occupancy status, etc. Among them, the interlocking system is responsible for establishing the core control equipment for railway operation. The computer interlocking system realizes the interlocking control between the switch, signal machine, and track circuit in the station under the operation of the signal operator, and is an indispensable guarantee equipment for safe and efficient railway operation.

[0040] The so-called occupation status can include occupation status and clearing status. The occupation status can be represented by a red light band in the station yard display; the clearing status refers to the state where the section is not occupied. It should be noted that the principles of occupation and clearing must comply with the three-point inspection principle of interlocking.

[0041] The so-called target segment set includes at least two adjacent segments, and the target segment set may include a moving unit or may not include a moving unit. Wherein, a segment refers to a track circuit segment in the station yard representation.

[0042] In this embodiment, the server is connected to the external interlocking system and can obtain the station field representation of the interlocking system in real time. Exemplarily, the station field representation can be obtained at each set time interval, where the set time interval can be set by technical personnel in this field according to actual conditions, for example, it can be 100ms.

[0043] Optionally, a first target segment may be determined from the target segment set according to a first occupancy state of the target segment set at a current moment, and a second target segment may be determined from the target segment set according to a second occupancy state of the target segment set at a next moment, and then the motion trajectory of the motion unit may be determined according to the position of the first target segment in the target segment set and the position of the second target segment in the target segment set, wherein the first target segment and the second target segment are occupied segments in the target segment set.

[0044] Specifically, according to the first occupancy state of the target segment set at the current moment, the occupied segment in the target segment set is used as the first target segment; according to the second occupancy state of the target segment set at the next moment, the occupied segment in the target segment set is used as the second target segment, and then the position of the first target segment in the target segment set is compared with the position of the second target segment in the target segment set to determine the motion unit.

[0045] Optionally, the state change of the segments in the target segment set may be determined based on the first occupancy state of the target segment set at the current moment and the second occupancy state of the target segment set at the next moment, and then the motion unit may be determined based on the state change of the segments.

[0046] Exemplarily, if the target segment set includes three consecutive segments, namely X1, X2 and X3, then the movement trajectory of the motion unit can be determined according to the change of the segments. If the first occupancy state of segment X1 is occupied, and the first occupancy state of segments X2 and X3 is cleared; the second occupancy state of segment X1 is occupied, the second occupancy state of segment X2 is occupied, and the occupancy state of segment X3 is cleared, then it can be determined that the running direction of the motion unit is the movement direction of X1->X2, and the motion unit includes the red light bands on segments X1 and X2.

[0047] Exemplarily, if the target segment set includes three consecutive segments, namely X1, X2 and X3, and the first occupancy status of the target segment set at the current moment is all cleared, that is, the first occupancy status of segments X1, X2 and X3 are all cleared, then the moving unit can be determined as follows: if the second occupancy status of segment X1 is cleared, and the second occupancy status of segments X2 and X3 is occupied, then the moving direction of the moving unit is the moving direction of X1->X2; if the second occupancy status of segment X3 is cleared, and the occupancy status of segments X1 and X2 is occupied, then the moving direction of the moving unit is the moving direction of X3-X2. It should be noted that if the second occupancy status of segment X2 is cleared, and the second occupancy status of segments X1 and X3 is occupied, then the moving direction of the moving unit is determined according to historical conditions, for example, the running direction of the moving unit is determined to be X2->X3 according to historical conditions; the red light band on segment X1 only indicates that the segment is currently occupied, and it is necessary to further analyze whether the red light band of segment X1 moves according to the subsequent station field representation to determine whether it is a moving unit.

[0048] S120, tracking the motion unit according to the station field representation, so as to track the power equipment.

[0049] In this embodiment, the motion unit is tracked according to the change of the motion unit in the station field representation, so as to track the power equipment corresponding to the power unit.

[0050] In addition, tracking based on motion units is mainly used for tracking the shunting route, and the shunting process is complex, including non-route shunting and reverse shunting, etc. The tracking of the shunting route in the present invention is based on the changes in the motion units, that is, the tracking of the red light band, which has nothing to do with the locking state of the route and equipment (i.e., railway track sections), but only with the order in which the track sections are occupied. At the same time, based on the recognition, memory and storage of motion units, it can also prevent interference with tracking in most abnormal situations such as poor branching and abnormal jumps of track circuits, thereby improving the robustness of tracking and the authenticity of extracted information.

[0051] The technical solution of the embodiment of the present invention determines the motion unit according to the first occupancy state of the target segment set at the current moment and the second occupancy state of the target segment set at the next moment; wherein the target segment set includes at least two adjacent segments, and the target segment set includes the motion unit, and then the motion unit is tracked according to the station field representation to track the power equipment. The above technical solution determines the motion unit and then tracks the power equipment only by the occupancy state determined by the target segment set without the aid of any additional positioning equipment, thereby reducing the positioning cost and greatly improving the robustness and accuracy of the power equipment tracking. At the same time, without adding equipment, simple and effective tracking of the power equipment is achieved, which greatly improves the power equipment tracking coverage, reduces the labor intensity of operators and reduces the safety risks of operations, improves production efficiency, and provides a new solution for tracking power equipment on railways.

[0052] On the basis of the above technical solution, in order to enable the user to intuitively understand the position of the motion unit, as an optional method of an embodiment of the present invention, the motion unit can be marked for display to the user.

[0053] For example, different motion units occupy different sections, that is, different red light bands are marked differently so that users can distinguish motion units. Motion units can be marked with set marking symbols. Furthermore, users can also add, delete, and modify marking symbols, or the server can automatically add or delete marking symbols. Among them, the marking symbol can be a rectangular box with an identifier, etc.

[0054] For example, the user can set a marker symbol at a specific location represented by the station in the client, and can also delete or change the marker symbol. The server obtains the user's marker symbol at a specific location from the client, and automatically matches the marker symbol when it recognizes that a motion unit passes through the specific location.

[0055] For another example, the server may also automatically add a marking symbol. If an exit segment is automatically detected and the occupancy status of the exit segment is occupied, it is determined that a motion unit exits the exit segment, and a marking symbol is automatically added.

[0056] For another example, after the arrival of the final truck, the user needs to handle the section corresponding to the shunting route. The server can automatically add the own engine mark symbol in the section. For another example, for the section corresponding to the departure route, the server can also automatically delete the own engine mark symbol. For another example, when a moving unit disappears at the entrance section, the server can also automatically delete the own engine mark symbol, where the entrance section and exit end are fixed, and are obtained by the server by reading the configuration information set by the user on the client. For another example, when the moving unit is moving, the server can also automatically maintain the identification symbol and display the running direction and position of the moving unit to the user on the client.

[0057] It is understandable that by marking the motion unit, the operation status of the motion unit can be intuitively displayed to the user, thereby improving the user experience.

[0058] Embodiment 2

[0059] Figure 2 This is a flow chart of a tracking method provided in Example 2 of the present invention. Based on the above example, it is further optimized to provide an optional implementation scheme.

[0060] like Figure 2 As shown, the method may specifically include:

[0061] S210 , determining a motion unit according to a first occupancy state of the target segment set at a current moment and a second occupancy state of the target segment set at a next moment.

[0062] S220, tracking of the motion unit according to the station representation, so as to track the power equipment.

[0063] In this embodiment, since the occupied section is represented in the station field only by a red light band, when there is a motion unit on the section, the section becomes a red light band. If multiple motion units are in the same section at the same time, it is impossible to distinguish the number of motion units and the order of the motion units through the red light band. Therefore, as an optional implementation of the embodiment of the present invention, if at least two motion units are identified to be running in the same section, the same section is used as an aggregate section, and the order of the at least two motion units in the aggregate section is determined according to the time and direction of the motion units entering the aggregate section, and then the power equipment corresponding to the at least two motion units is dequeued and managed according to the order.

[0064] Exemplarily, the direction in which the motion unit enters the aggregated segment is determined in the following manner: determine the previous segment that the motion unit passes through to enter the aggregated segment; and use the identification information of the previous segment as the direction in which the motion unit enters the aggregated segment. Specifically, in practice, entering a segment can only be done in two directions. For example, there are continuous segments X1-X5, where segment X3 is an aggregated segment. There are motion units ABCD that want to enter aggregated segment X3. Assume that motion units A and B enter aggregated segment X3 from X2, and motion units C and D enter aggregated segment X3 from X4. Therefore, the identification information of segment X2 (i.e., the previous segment) can be used as the direction in which motion units A and B enter aggregated segment X3, and the identification information of segment X4 (i.e., the previous segment) can be used as the direction in which motion units C and D enter aggregated segment X3. Among them, the identification information of the segment is used to uniquely characterize the segment, and can be represented by numbers, letters, or numbers and letters.

[0065] Exemplarily, the time when the moving unit enters the aggregated segment is determined by: determining the previous segment that the moving unit passes through before entering the aggregated segment; and taking the time when the occupancy status of the previous segment changes from occupied to cleared as the time when the moving unit enters the aggregated segment. Specifically, for example, there are continuous segments X1-X5, where segment X3 is an aggregated segment, and a moving unit passes through segment X2 and enters aggregated segment X3, then segment X2 is the previous segment, and taking the time when the occupancy status of segment X2 changes from occupied to cleared as the time when the moving unit enters aggregated segment X3.

[0066] In this embodiment, the order of at least two motion units in the aggregation segment is determined according to the time and direction when the motion units enter the aggregation segment. Specifically, the motion units can be sorted according to the time when they enter the aggregation segment. The later the motion units enter the aggregation segment, the closer they are to the direction of entering the aggregation segment. For example, in the above example, there are motion units A, B, C and D on the aggregation segment X3. The direction in which motion units A and B enter the aggregation segment is segment X2. The time when motion unit B enters the aggregation segment X3 is later than that of motion unit A, that is, motion unit B is closer to segment X2; the direction in which motion units C and D enter the aggregation segment is segment X4. The time when motion unit D enters the aggregation segment X3 is later than that of motion unit C, that is, motion unit D is closer to segment X4. If motion units A, B, C and D all exit from segment X4, the order of exiting is D, C, A, B.

[0067] In addition, compared with the existing occupancy board and vehicle management system, the management of the power equipment corresponding to the motion unit of the aggregate section in the present invention has low technical cost and is fully automatic, without the need for manual operation by the user. Among them, the occupancy board is a purely manually operated system, which is delayed and disconnected from the site, and manual operation is prone to errors. The vehicle management system can accurately reflect the order of vehicle occupancy in the track section, but it also requires a lot of manual operation, and it will also cause a disconnect between reality and plan.

[0068] The technical solution of the embodiment of the present invention determines the motion unit according to the first occupancy state of the target segment set at the current moment and the second occupancy state of the target segment set at the next moment; wherein the target segment set includes at least two adjacent segments, and the target segment set includes the motion unit, and then the motion unit is tracked according to the station field representation to track the power equipment. The above technical solution determines the motion unit and then tracks the power equipment only by the occupancy state determined by the target segment set without the aid of any additional positioning equipment, thereby reducing the positioning cost and greatly improving the robustness and accuracy of the power equipment tracking. At the same time, without adding equipment, simple and effective tracking of the power equipment is achieved, which greatly improves the power equipment tracking coverage, reduces the labor intensity of operators and reduces the safety risks of operations, improves production efficiency, and provides a new solution for tracking power equipment on railways.

[0069] Embodiment 3

[0070] Figure 3 It is a structural diagram of a tracking device provided in Example 3 of the present invention. This embodiment can be applied to the tracking of power equipment in large marshalling yards. The device can be implemented by software and / or hardware and can be integrated into an electronic device that carries the tracking function, such as a server.

[0071] like Figure 3 As shown, the device may specifically include:

[0072] The motion unit determination module 310 is used to determine the motion unit according to the first occupancy state of the target segment set at the current moment and the second occupancy state of the target segment set at the next moment; wherein the target segment set includes at least two adjacent segments, and the target segment set includes the motion unit;

[0073] The tracking module 320 is used to track the motion unit and the power equipment according to the station field representation and to track the power equipment according to the change of the motion unit.

[0074] The technical solution of the embodiment of the present invention determines the motion unit according to the first occupancy state of the target segment set at the current moment and the second occupancy state of the target segment set at the next moment; wherein the target segment set includes at least two adjacent segments, and the target segment set includes the motion unit, and then the motion unit is tracked according to the station field representation to track the power equipment. The above technical solution determines the motion unit and then tracks the power equipment only by the occupancy state determined by the target segment set without the aid of any additional positioning equipment, thereby reducing the positioning cost and greatly improving the robustness and accuracy of the power equipment tracking. At the same time, without adding equipment, simple and effective tracking of the power equipment is achieved, which greatly improves the power equipment tracking coverage, reduces the labor intensity of operators and reduces the safety risks of operations, improves production efficiency, and provides a new solution for tracking power equipment on railways.

[0075] Further, the motion unit determination module 310 is specifically used for:

[0076] determining a first target segment from the target segment set according to a first occupancy state of the target segment set at a current moment;

[0077] determining a second target segment from the target segment set according to a second occupancy state of the target segment set at a next moment;

[0078] A motion unit is determined according to a position of the first target segment in the target segment set and a position of the second target segment in the target segment set.

[0079] Furthermore, the motion unit determination module 310 is specifically configured to:

[0080] Determine a state change of the segments in the target segment set according to a first occupancy state of the target segment set at a current moment and a second occupancy state of the target segment set at a next moment;

[0081] According to the state change of the segment, the motion unit is determined.

[0082] Furthermore, the device also includes:

[0083] An aggregation section determination module, configured to, if at least two motion units are identified to be running in the same section according to the motion trajectories of the motion units, use the same section as the aggregation section;

[0084] An order determination module, for determining the order of at least two motion units in the aggregation section according to the time and direction of the motion units entering the aggregation section;

[0085] The management module is used to manage the dequeue of the power equipment corresponding to at least two motion units according to the order.

[0086] Further, the time when the motion unit enters the aggregation section is determined as follows:

[0087] According to the motion trajectory of the motion unit, determining the previous section through which the motion unit enters the aggregation section;

[0088] The time when the occupancy state of the previous segment changes from occupied to cleared is taken as the time when the motion unit enters the aggregation segment.

[0089] Furthermore, the direction in which the moving unit enters the aggregation section is determined by:

[0090] According to the motion trajectory of the motion unit, determining the previous section through which the motion unit enters the aggregation section;

[0091] The identification information of the previous segment is used as the direction for the motion unit to enter the aggregation segment.

[0092] Furthermore, the device also includes:

[0093] The display module is used to mark the motion unit for display to the user.

[0094] The above-mentioned tracking device can execute the tracking method provided by any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0095] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the embodiments of the present invention are described in more detail through the above embodiments, the embodiments of the present invention are not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A tracking method, characterized in that: include: Determine a motion unit according to a first occupancy state of a target segment set at a current moment and a second occupancy state of the target segment set at a next moment; wherein the target segment set includes at least two adjacent segments, the target segment set includes the motion unit, the occupancy state includes an occupancy state and a clearing state, the motion unit refers to a mapping feature of a power device in a railway in a station yard representation, and the power device is a main locomotive and a shunting locomotive; Tracking of the motion unit according to the station representation, so as to track the power equipment; If at least two motion units are identified to be in the same segment, the same segment is used as an aggregate segment; Determining the order of the at least two motion units in the aggregation section according to the time and direction of the motion units entering the aggregation section; According to the order, the power equipment corresponding to the at least two motion units are dequeued and managed; The determining, according to the time and direction of the movement unit entering the aggregation section, the order of the at least two movement units in the aggregation section specifically includes: Sorting the motion units according to the time when they enter the polymerization section, wherein the motion units that enter the polymerization section later are closer to the direction of entering the polymerization section; The time when the motion unit enters the aggregation section is determined as follows: Determining the last section passed by the motion unit when entering the aggregation section; The time when the occupancy state of the previous segment changes from occupied to cleared is used as the time when the motion unit enters the aggregation segment.

2. The method according to claim 1, characterized in that The determining of the motion unit according to the first occupancy state of the target segment set at the current moment and the second occupancy state of the target segment set at the next moment includes: determining a first target segment from the target segment set according to a first occupancy state of the target segment set at a current moment; determining a second target segment from the target segment set according to a second occupancy state of the target segment set at the next moment; A motion unit is determined according to a position of the first target segment in the target segment set and a position of the second target segment in the target segment set.

3. The method according to claim 1, characterized in that The determining of the motion unit according to the first occupancy state of the target segment set at the current moment and the second occupancy state of the target segment set at the next moment includes: Determine a state change of the segments in the target segment set according to a first occupancy state of the target segment set at a current moment and a second occupancy state of the target segment set at a next moment; The motion unit is determined according to the state change of the segment.

4. The method according to claim 1, characterized in that: The direction in which the motion unit enters the aggregation section is determined by: Determining the last section passed by the motion unit when entering the aggregation section; The identification information of the previous segment is used as the direction for the motion unit to enter the aggregation segment.

5. The method according to claim 1, characterized in that Also includes: The motion unit is marked for display to the user.

6. A tracking device, characterized in that: include: A motion unit determination module is used to determine a motion unit according to a first occupancy state of a target segment set at a current moment and a second occupancy state of the target segment set at a next moment; wherein the target segment set includes at least two adjacent segments, the target segment set includes a motion unit, the occupancy state includes an occupancy state and a clearing state, the motion unit refers to a mapping feature of a power device in a railway in a station yard representation, and the power device is a main locomotive and a shunting locomotive; A tracking module, used for tracking the motion unit according to the station field representation, so as to track the power equipment; An aggregation section determination module, configured to, if at least two motion units are identified to be running in the same section according to the motion trajectories of the motion units, use the same section as the aggregation section; An order determination module, configured to determine an order of the at least two motion units in the aggregation section according to a time and a direction when the motion units enter the aggregation section; A management module, used for dequeuing the power equipment corresponding to the at least two motion units according to the order; The order determination module is specifically used to sort the motion units according to the time when they enter the aggregation section, and the motion units that enter the aggregation section later are closer to the direction of entering the aggregation section; Time determination module: used to determine the previous segment that the moving unit passed through to enter the aggregation segment according to the movement trajectory of the moving unit; and use the time when the occupancy status of the previous segment changes from occupied to cleared as the time when the moving unit enters the aggregation segment.

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