Locomotive number tracking method and system

Abstract

Disclosed are a locomotive number tracking method and system. The locomotive number tracking method includes: handling a shunting route for a locomotive number and acquiring indication information of a station yard signal device; acquiring a running direction of the locomotive number according to the indication information of the station yard signal device; acquiring an auxiliary tracking data set according to a logic diagram of the station yard signal device and the running direction of the locomotive number, where the auxiliary tracking data set includes the locomotive number, a signal, and a route locking section; acquiring indication information of a track section when a status of the track section in the shunting route changes; and matching the indication information of the track section with the auxiliary tracking data set to search for an initial signal device and a target signal device of a movement of the locomotive number, so as to track the locomotive number. The present disclosure can improve the accuracy and reliability of locomotive number tracking and position reporting, thereby enhancing the operational efficiency of railway transportation.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of rail transit, and in particular, to a locomotive number tracking method and system based on a station yard signal status.BACKGROUND

[0002] Shunting operation is a basic component of railway operation, and is also an important part of railway transportation production. For marshaling stations where a large number of train marshaling and unmarshaling operations are carried out, shunting operation is an important production activity, and correct tracking of locomotive numbers is a necessary prerequisite for the efficient and precise completion of shunting operation.

[0003] The locomotive number tracking technology has a wide range of applications, and existing locomotive number tracking methods mainly include satellite positioning tracking and track circuit tracking. The satellite positioning tracking method represented by GPS technology has been applied to the field of rail transit. However, it is affected by many objective factors, including positioning accuracy, buildings, weather and other factors. Thus, the stability of this method is difficult to meet the high requirements for the tracking of locomotives and rolling stock in the field of rail transit. The track circuit tracking method usually determines the locomotive position by means of the occupation and the clearing conditions of the track circuit. However, the track circuit may be subject to abnormal occupation, such that the reliability and accuracy of locomotive number tracking relying solely on the occupation and clearing of the track circuit are insufficient.SUMMARY

[0004] An objective of the present disclosure is to provide a locomotive number tracking method to improve the accuracy and reliability of locomotive number tracking and position reporting, thereby enhancing the operational efficiency of railway transportation.

[0005] To achieve the above objective, the present disclosure is implemented by the following technical solutions: A locomotive number tracking method, including: handling a shunting route for a locomotive number and acquiring indication information of a station yard signal device; acquiring a running direction of the locomotive number according to the indication information of the station yard signal device; acquiring an auxiliary tracking data set according to a logic diagram of the station yard signal device and the running direction of the locomotive number, where the auxiliary tracking data set comprises the locomotive number, a signal, and a route locking section; acquiring indication information of a track section when a status of the track section in the shunting route changes; and matching the indication information of the track section with the auxiliary tracking data set to search for an initial signal device and a target signal device of a movement of the locomotive number, so as to track the locomotive number.

[0006] Optionally, the indication information of a station yard signal device includes a station number of a station yard where a signal device is located, a type of the signal device, a serial number of the signal device and status information of the signal device; and the signal device comprises a signal and a track section.

[0007] Optionally, the step of acquiring a running direction of the locomotive number according to the indication information of the station yard signal device includes: determining whether the signal device is a shunting signal according to the type of the signal device; determining whether the shunting signal opens a permissive signal according to the status information of the signal device when the signal device is the shunting signal; and acquiring the running direction of the locomotive number according to a protection direction of the shunting signal when the shunting signal opens the permissive signal.

[0008] Optionally, the step of acquiring an auxiliary tracking data set according to a logic diagram of the station yard signal device and the running direction of the locomotive number includes: searching for the signal device adjacent to the shunting signal in the station yard in a direction opposite to the running direction of the locomotive number according to the logic diagram of the station yard signal device and recording the signal device as a first counter-directional adjacent signal device; recording the locomotive number when the first counter-directional adjacent signal device is a track section in an occupied status and has a locomotive number; with the shunting signal as a starting point, searching for the signal device adjacent to the shunting signal in the station yard in the running direction of the locomotive number according to the logic diagram of the station yard signal device and recording the signal device as a first co-directional adjacent signal device; recording the locked section when the first co-directional adjacent signal device is a locked track section; continuously searching for a next first co-directional adjacent signal device according to the running direction of the locomotive number; and stopping the search and generating the auxiliary tracking data set when the next first co-directional adjacent signal device is an unlocked track section.

[0009] Optionally, the indication information of the track section includes: a station number of a station yard where the track section is located, a type of the track section, a serial number of the track section and status information of the track section.

[0010] Optionally, the step of matching the indication information of the track section with the auxiliary tracking data set to search for an initial signal device and a target signal device of a movement of the locomotive number includes: using the corresponding track section as the target signal device of the movement of the locomotive number when the track section in the shunting route is currently in an occupied status and has no locomotive number; matching the track section with the auxiliary tracking data set to acquire the running direction of the locomotive number in the shunting route; searching for the signal device adjacent to the shunting signal in the station yard in a direction opposite to the running direction of the locomotive number in the shunting route according to the logic diagram of the station yard signal device and recording the signal device as a second counter-directional adjacent signal device; using the second counter-directional adjacent signal device as the initial signal device of the movement of the locomotive number when the second counter-directional adjacent signal device is a track section in the current station yard that is in an occupied status and has a locomotive number; and moving the locomotive number from the initial signal device to the target signal device.

[0011] Optionally, the step of matching the indication information of the track section with the auxiliary tracking data set to search for an initial signal device and a target signal device of a movement of the locomotive number further includes: acquiring a previous status of the track section when a current status of the track section in the shunting route is a cleared status; using the track section as the initial signal device of the movement of the locomotive number when the track section is previously in the occupied status and has a locomotive number; matching the track section with the auxiliary tracking data set to acquire the running direction of the locomotive number in the shunting route; searching for the signal device adjacent to the shunting signal in the station yard in a direction opposite to the running direction of the locomotive number in the shunting route according to the logic diagram of the station yard signal device and recording the signal device as a third counter-directional adjacent signal device; using the third counter-directional adjacent signal device as the target signal device of the movement of the locomotive number when the third counter-directional adjacent signal device is a track section in the current station yard that is in an occupied status and has no locomotive number; and moving the locomotive number from the initial signal device to the target signal device.

[0012] Optionally, the step of matching the indication information of the track section with the auxiliary tracking data set to search for an initial signal device and a target signal device of a movement of the locomotive number further includes: determining whether the track section matches the auxiliary tracking data set when the current status of the track section in the shunting route is poor shunting; and if the track section matches the auxiliary tracking data set, regarding the current status of the track section as an occupied status.

[0013] Optionally, the running direction of the locomotive number includes an up direction and a down direction.

[0014] Optionally, the track section includes a track, a switchless section, and a switch section.

[0015] In another aspect, the present disclosure further provides a locomotive number tracking system, configured to execute the locomotive number tracking method described above.

[0016] Compared with the prior art, the present disclosure at least has one of the following advantages: According to the locomotive number tracking method and system provided by the present disclosure, after the shunting route of the locomotive number is handled, the running direction of the locomotive number is acquired according to the indication information of the station yard signal device; the auxiliary tracking data set is acquired according to the logic diagram of the station yard signal device and the running direction of the locomotive number, where the auxiliary tracking data set includes the locomotive number, the signal, and the route locking section; indication information of the track section is acquired when the status of the track section in the shunting route changes; and the indication information of the track section is matched with the auxiliary tracking data set to search for the initial signal device and the target signal device of the movement of the locomotive number, so as to track the locomotive number.

[0017] Based on track circuit tracking in the present disclosure, locomotive number tracking is assisted by preconditions such as signals and route locking sections, while also adapting to the abnormal condition of poor shunting of the track circuit, such that the locomotive number tracking can be effectively and correctly achieved, and the accuracy and reliability of locomotive number tracking and position reporting are improved, thereby enhancing the operational efficiency of railway transportation.

[0018] The present disclosure features a wide application range and a low investment cost. The locomotive number tracking is a basic function of a train dispatching command system (TDCS). Since the TDCS has been popularized across the entire railway network, the present disclosure can be applied to almost all lines of the entire railway network, and the equipment investment cost only includes the expenses for the optimization and upgrading of the existing TDCS.BRIEF DESCRIPTION OF THE DRAWINGS

[0019] FIG. 1 is a flow diagram of a locomotive number tracking method provided by the present disclosure. FIG. 2 is a flow diagram where an auxiliary tracking data set is generated in a locomotive number tracking method provided by the present disclosure. FIG. 3 is a flow diagram where locomotive number tracking is performed in a locomotive number tracking method provided by the present disclosure. FIG. 4 is a schematic diagram before a locomotive number occupies a track section in a locomotive number tracking method provided by the present disclosure. FIG. 5 is a schematic diagram after a locomotive number occupies a track section in a locomotive number tracking method provided by the present disclosure. FIG. 6 is a schematic diagram before a locomotive number releases the occupied track section in a locomotive number tracking method provided by the present disclosure. FIG. 7 is a schematic diagram after a locomotive number releases the occupied track section in a locomotive number tracking method provided by the present disclosure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The locomotive number tracking method based on a station yard signal status provided by the present disclosure will be further described in detail below in conjunction with drawings and specific embodiments. According to the following description, the advantages and features of the present disclosure will become more apparent. It should be noted that the drawings are in a very simplified form and all use imprecise scales, which are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention. In order to make the objectives, features and advantages of the present invention more comprehensible, please refer to the accompanying drawings. It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to the present invention are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the limiting conditions implemented by the present invention, so it has no technical substantive meaning, and any modification of structure, change of proportional relationship or adjustment of size shall still fall within the scope covered by the disclosed technical content of the present invention without affecting the effect and purpose of the present invention.

[0021] It should be noted that in this specification, relational terms such as "first", "second" and the like are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. Furthermore, the terms "comprises", "includes" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, object or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, object or equipment. Without further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, object or equipment including the element.

[0022] Referring to FIGS. 1-7, this embodiment provides a locomotive number tracking method, including the following steps: S11, handling a shunting route for a locomotive number and acquiring indication information of a station yard signal device; S12, acquiring a running direction of the locomotive number according to the indication information of the station yard signal device; S13, searching for the locomotive number and the shunting route according to a logic diagram of the station yard signal device and the running direction of the locomotive number, to acquire an auxiliary tracking data set, including the locomotive number, a signal, and a route locking section; S14, acquiring the indication information of the track section when the status of the track section in the shunting route changes; and S15, matching the indication information of the track section with the auxiliary tracking data set to search for an initial signal device and a target signal device of a movement of the locomotive number, so as to track the locomotive number. It can be understood that the locomotive number is a code assigned for the purpose of uniquely identifying and managing a locomotive; the locomotive number is generally composed of a combination of numerals and letters.

[0023] Specifically, in step S11, when the shunting route of the locomotive number is handled, the locomotive number of a corresponding locomotive should be added. The indication information of a station yard signal device includes a station number of a station yard where a signal device is located, a type of the signal device, a serial number of the signal device and status information of the signal device; and the signal device includes a signal and a track section. The signal includes a home signal, a starting signal, a shunting signal, a route signal for receiving, a route signal for departure, an announcing signal, a block signal, and the like. The track section includes a track, a switchless section, and a switch section. However, the present disclosure is not limited thereto.

[0024] Specifically, step S12 includes: S121, whether the signal device is a shunting signal is determined according to the type of the signal device; S122, whether the shunting signal opens a permissive signal is determined according to the status information of the signal device when the signal device is the shunting signal; and S123, the running direction of the locomotive number is acquired according to a protection direction of the shunting signal when the shunting signal opens the permissive signal.

[0025] In this embodiment, in step S121, whether the signal device is the shunting signal is determined one by one according to the type of the signal device in the indication information of the station yard signal device; and if the signal device is not the shunting signal, the operation is finished; and if the signal device is the shunting signal, step S122 is executed. In step S122, if the status information of the signal device is blue light, indicating that the shunting signal does not open the permissive signal, the operation is finished; and if the status information of the signal device is lunar white light, indicating that the shunting signal opens the permissive signal, step S123 is executed. In step S123, the running direction of the locomotive number includes an up direction and a down direction.

[0026] Specifically, step S13 includes: S131, the signal device adjacent to the shunting signal in the station yard is searched in a direction opposite to the running direction of the locomotive number according to the logic diagram of the station yard signal device and the signal device as a first counter-directional adjacent signal device is recorded; S132, the locomotive number is recorded when the first counter-directional adjacent signal device is a track section in an occupied status and with a locomotive number; S133, with the shunting signal as a starting point, the signal device adjacent to the shunting signal in the station yard is searched in the running direction of the locomotive number according to the logic diagram of the station yard signal device and the signal device is recorded as a first co-directional adjacent signal device; S134, the locked section is recorded when the first co-directional adjacent signal device is a locked track section; S135, a next first co-directional adjacent signal device is continuously searched according to the running direction of the locomotive number; and S136, the search is stopped and the auxiliary tracking data set is generated when the next first co-directional adjacent signal device is an unlocked track section.

[0027] In this embodiment, as shown in FIG. 2, step S132 includes: step S1321, whether the first counter-directional adjacent signal device is the track section is determined, where if the first counter-directional adjacent signal device is not the track section, step S131 is executed; and if the first counter-directional adjacent signal device is the track section, step S1322 is executed. Step S1322, whether the first counter-directional adjacent signal device is currently in an occupied status, where if the first counter-directional adjacent signal device is currently not in an occupied status, step S133 is executed; and if the first counter-directional adjacent signal device is currently in an occupied status, step S1323 is executed. Step S1323, whether the current status of the first counter-directional adjacent signal device includes the locomotive number is determined, where if the current status of the first counter-directional adjacent signal device does not include the locomotive number, step S131 is executed; and if the current status of the first counter-directional adjacent signal device includes the locomotive number, the locomotive number is recorded. It can be seen from the above that a condition for finishing the search for the signal device adjacent to the shunting signal in the station yard in a direction opposite to the running direction of the locomotive number is as follows: the signal device searched in the direction opposite to the running direction of the locomotive number is the track section in the occupied status and has the locomotive number; or the signal device searched in the direction opposite to the running direction of the locomotive number is not occupied.

[0028] In this embodiment, step S134 includes: step S1341, whether the first co-directional adjacent signal device is the track section is determined, where if the first co-directional adjacent signal device is not the track section, step S133 is executed; and if the first co-directional adjacent signal device is the track section, step S1342 is executed. Step S1342, whether the first co-directional adjacent signal device is the locked track section is determined, where if the first counter-directional adjacent signal device is not the locked track section, a shunting operation route is determined, and the search is stopped and the auxiliary tracking data set is generated; and if the first counter-directional adjacent signal device is the locked track section, the locked section is recorded and step S133 is executed.

[0029] Specifically, in step S14, the indication information of the track section includes a station number of a station yard where the track section is located, a type of the track section, a serial number of the track section, and status information of the track section (for example, the status being an occupied status, a cleared status or poor shunting, and whether there is a locomotive number).

[0030] Specifically, step S15 includes: step S151, the corresponding track section is used as the target signal device of the movement of the locomotive number when the track section in the shunting route is currently in an occupied status and has no locomotive number; S152, the track section is matched with the auxiliary tracking data set to acquire the running direction of the locomotive number in the shunting route; S153, the signal device adjacent to the shunting signal in the station yard is searched in a direction opposite to the running direction of the locomotive number in the shunting route according to the logic diagram of the station yard signal device and the signal device as a second counter-directional adjacent signal device is recorded; S154, the second counter-directional adjacent signal device is used as the initial signal device of the movement of the locomotive number when the second counter-directional adjacent signal device is a track section in the current station yard that is in an occupied status and has a locomotive number; and S155, the locomotive number is moved from the initial signal device to the target signal device.

[0031] Specifically, the operation of matching the track section with the auxiliary tracking data includes one or any combination of comparing the target signal device with a route locking section in the auxiliary tracking data set, comparing the locomotive number of the initial signal device with the locomotive number in the auxiliary tracking data set, and comparing the direction of the movement of the locomotive number with the protection direction of the shunting signal in the auxiliary tracking data set.

[0032] In this embodiment, as shown in FIG. 3, in step S151, when the track section in the shunting route is currently in the occupied status and has the locomotive number, the operation is finished. In step S152, whether the track section used as the target signal device of the movement of the locomotive number matches the route locking section in the auxiliary tracking data set (whether the two are consistent) is determined, where if the track section used as the target signal device of the movement of the locomotive number matches the route locking section in the auxiliary tracking data set, the running direction of the locomotive number determined in step S123 is used as the running direction of the locomotive number in the shunting route; and if the track section used as the target signal device of the movement of the locomotive number does not match the route locking section in the auxiliary tracking data set, the up direction or the down direction is successively used as the running direction of the locomotive number in the shunting route until the initial signal device of the movement of the locomotive number is found or both up and down directions are traversed.

[0033] In this embodiment, step S154 includes: step S1541, whether the second counter-directional adjacent signal device is the signal device in the current station yard, where if the second counter-directional adjacent signal device is not the signal device in the current station yard, whether the initial signal device of the locomotive number has been confirmed is determined; and if the second counter-directional adjacent signal device is the signal device in the current station yard, step S1542 is executed. Step S1542, whether the second counter-directional adjacent signal device is the track section is determined, where if the second counter-directional adjacent signal device is not the track section, step S153 is executed; and if the second counter-directional adjacent signal device is the track section, step S1543 is executed. Step S1543, whether the current status of the second counter-directional adjacent signal device is an occupied status is determined, where if the current status of the second counter-directional adjacent signal device is not an occupied status, whether the initial signal device of the locomotive number has been confirmed is determined; and if the current status of the second counter-directional adjacent signal device is an occupied status, step S1544 is executed. Step S1544, whether the current status of the second counter-directional adjacent signal device includes the locomotive number, where if the current status of the second counter-directional adjacent signal device does not include the locomotive number, step S153 is executed; and if the current status of the second counter-directional adjacent signal device includes the locomotive number, the second counter-directional adjacent signal device including the locomotive number is used as the initial signal device of the movement of the locomotive number. Before step S155 is executed, the step further includes: whether the initial signal device of the locomotive has been confirmed is determined, where if the initial signal device of the locomotive has been confirmed, step S155 is executed; and if the initial signal device of the locomotive has not been determined, the operation is finished. In addition, before step S155 is executed, the step may further include: the locomotive number of the initial signal device is compared with the locomotive number in the auxiliary tracking data set or the direction of the movement of the locomotive number is compared with the protection direction of the shunting signal in the auxiliary tracking data set. However, the present disclosure is not limited thereto.

[0034] In some embodiments, step S15 further includes: S156, a previous status of the track section is acquired when a current status of the track section in the shunting route is a cleared status; S157, the track section is used as the initial signal device of the movement of the locomotive number when the track section is previously in the occupied status and has a locomotive number; S158, the track section is matched with the auxiliary tracking data set to acquire the running direction of the locomotive number in the shunting route; S159, the signal device adjacent to the shunting signal in the station yard is searched in a direction opposite to the running direction of the locomotive number in the shunting route according to the logic diagram of the station yard signal device and the signal device is recorded as a third counter-directional adjacent signal device; S160, the third counter-directional adjacent signal device is used as the target signal device of the movement of the locomotive number when the third counter-directional adjacent signal device is a track section in the current station yard that is in an occupied status and has no locomotive number; and S161, the locomotive number is moved from the initial signal device to the target signal device.

[0035] In this embodiment, step S157 further includes: step S1571, whether the previous status of the track section is an occupied status is determined, where if the previous status of the track section is not an occupied status, the operation is finished; and if the previous status of the track section is an occupied status, step S1572 is executed. Step S1572, whether the previous status of the track section includes the locomotive number is determined, where if the previous status of the track section does not include the locomotive number, the operation is finished; and if the previous status of the track section includes the locomotive number, the track section including the locomotive number is used as the initial signal device of the movement of the locomotive.

[0036] In step S158, whether the locomotive number of the initial signal device matches the locomotive number in the auxiliary tracking data set (whether the two are consistent) is determined, where if the locomotive number of the initial signal device matches the locomotive number in the auxiliary tracking data set, the running direction of the locomotive number determined in step S123 is used as the running direction of the locomotive number in the shunting route; and if the locomotive number of the initial signal device does not match the locomotive number in the auxiliary tracking data set, the up direction or the down direction is successively used as the running direction of the locomotive number in the shunting route until the target signal device of the movement of the locomotive number is found or both up and down directions are traversed.

[0037] Step S160 includes: step S1601, whether the third counter-directional adjacent signal device is the signal device in the current station yard is determined, where if the third counter-directional adjacent signal device is not the signal device in the current station yard, whether the target signal device of the locomotive number has been confirmed is determined; and if the third counter-directional adjacent signal device is the signal device in the station yard, step S1602 is executed. Step S1602, whether the third counter-directional adjacent signal device is the track section is determined, where if the third counter-directional adjacent signal device is not the track section, step S159 is executed; and if the third counter-directional adjacent signal device is the track section, step S1603 is executed. Step S1603, whether the current status of the third counter-directional adjacent signal device is an occupied status is determined, where if the current status of the third counter-directional adjacent signal device is not an occupied status, whether the target signal device of the locomotive number has been confirmed is determined; and if the current status of the third counter-directional adjacent signal device is an occupied status, step S1604 is executed. Step S1604, whether the current status of the third counter-directional adjacent signal device includes the locomotive number, where if the current status of the third counter-directional adjacent signal device includes the locomotive number, whether the target signal device of the locomotive number has been confirmed is determined; and if the current status of the third counter-directional adjacent signal device does not include the locomotive number, the third counter-directional adjacent signal device is used as the target signal device of the movement of the locomotive number. Before step S161 is executed, the step further includes: whether the target signal device of the locomotive number has been confirmed is determined, where if the target signal device of the locomotive number has been confirmed, step S161 is executed; and if the target signal device of the locomotive number has not been determined, the operation is finished. In addition, before step S161 is executed, the step may further include: the initial signal device is compared with the route locking section in the auxiliary tracking data set or the direction of the movement of the locomotive number is compared with the protection direction of the shunting signal in the auxiliary tracking data set. However, the present disclosure is not limited thereto.

[0038] In some embodiments, step S15 further includes: step S162, when the current status of the track section in the shunting route is poor shunting, whether the track section matches the auxiliary tracking data set is determined, where if the track section matches the auxiliary tracking data set, the current status of the track section is regarded as an occupied status.

[0039] FIG. 4 and FIG. 5 show schematic diagrams for change processing of the locomotive number entering the track section. A locomotive number "shunting 0088"is located in a switchless section IIIAG, shunting routes D1-D5 are handled in front, the shunting signal D1 opens a permissive signal, and the running direction of the locomotive number "shunting 0088" is the down direction according to the protection direction of the shunting signal D1. Combined with the information of the locomotive number and a locked switch section 1-3DG in the route, the auxiliary tracking data set is generated. When the switch section 1-3DG turns into an occupied red light band, the indication information of the occupied status of the switch section 1-3DG can be acquired. First, whether an indication status of the switch section 1-3DG has the information of the locomotive number is checked. If the indication status of the switch section 1-3DG does not have the information of the locomotive number, the switch section 1-3DG is used as the target signal device of the movement of the locomotive number "shunting 0088". Then, the indication status of the switch section 1-3DG is matched with the auxiliary tracking data set to obtain the running direction which is the down direction, and then an adjacent track section is searched according to the up direction (opposite to the running direction), and whether the status is an occupied status and there is the information of the locomotive number is checked. A condition is met when the switchless section IIIAG is found. The IIIAG is currently in the occupied status, and has the locomotive number "shunting 0088". The switchless section IIIAG is used as the initial signal device of the movement of the locomotive number "shunting 0088", and then the locomotive number "shunting 0088" is moved from the switchless section IIIAG to the terminal switch section 1-3DG to achieve locomotive number tracking.

[0040] FIG. 6 and FIG. 7 are schematic diagrams of change processing of the track section where the locomotive number is located. After the shunting routes D1-D5 have been handled and the track I is occupied, the locomotive number "shunting 0088" is moved from the switch section 1-3DG to the track I. In this case, occupation of the track I is canceled to acquire the indication information of the cleared status of the track I. First, whether the original status of the track is occupied and there is the locomotive number is checked. If yes, the track I is used as the initial signal device of the locomotive number "shunting 0088". Then, the indication information of the track I is matched with the auxiliary tracking data set to obtain the running direction which is the down direction, and then an adjacent track section is searched according to the up direction (opposite to the running direction), and whether the status is occupied and there is no information of the locomotive number is checked. A condition is met when the switch section 1-3DG is found. The switch section 1-3DG is currently in the occupied status, and has no information of the locomotive number. The switch section 1-3DG is used as the target signal device of the movement of the locomotive number. When the switchless section IIIAG is continuously found, since IIIAG is not in the occupied state, the condition is not met, and searching is finished. Finally, the switch section 1-3DG is used as the target signal device of the movement of the locomotive, and the locomotive number "shunting 0088" is moved from the starting track I to the terminal switch section 1-3DG to achieve locomotive number tracking.

[0041] Based on the same invention concept, this embodiment further provides a locomotive number tracking system, configured to execute the locomotive number tracking method described above.

[0042] To sum up, according to the locomotive number tracking method and system provided by this embodiment, after the shunting route of the locomotive number is handled, the running direction of the locomotive number is acquired according to the indication information of the station yard signal device; the auxiliary tracking data set is acquired according to the logic diagram of the station yard signal device and the running direction of the locomotive number, where the auxiliary tracking data set includes the locomotive number, the signal, and the route locking section; indication information of the track section is acquired when the status of the track section in the shunting route changes; and the indication information of the track section is matched with the auxiliary tracking data set to search for the initial signal device and the target signal device of the movement of the locomotive number, so as to track the locomotive number. Based on track circuit tracking in the present disclosure, locomotive number tracking is assisted by preconditions such as signals and route locking sections, while also adapting to the abnormal condition of poor shunting of the track circuit, such that the locomotive number tracking can be effectively and correctly achieved, and the accuracy and reliability of locomotive number tracking and position reporting are improved, thereby enhancing the operational efficiency of railway transportation. The present disclosure features a wide application range and a low investment cost. The locomotive number tracking is a basic function of a train dispatching command system (TDCS). Since the TDCS has been popularized across the entire railway network, the present disclosure can be applied to almost all lines of the entire railway network, and the equipment investment cost only includes the expenses for the optimization and upgrading of the existing TDCS.

[0043] Although the content of the present disclosure has been described in detail through the above preferred embodiments, it should be understood that the above description shall not be deemed as a limitation on the present disclosure. After those skilled in the art have read the above content, various modifications and alternatives to the present disclosure will be apparent. Therefore, the protection scope of the present disclosure shall be defined by the appended claims.

Examples

Embodiment Construction

[0020]The locomotive number tracking method based on a station yard signal status provided by the present disclosure will be further described in detail below in conjunction with drawings and specific embodiments. According to the following description, the advantages and features of the present disclosure will become more apparent. It should be noted that the drawings are in a very simplified form and all use imprecise scales, which are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention. In order to make the objectives, features and advantages of the present invention more comprehensible, please refer to the accompanying drawings. It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to the present invention are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the limiti...

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of rail transit, and in particular, to a locomotive number tracking method and system based on a station yard signal status.BACKGROUND

[0002] Shunting operation is a basic component of railway operation, and is also an important part of railway transportation production. For marshaling stations where a large number of train marshaling and unmarshaling operations are carried out, shunting operation is an important production activity, and correct tracking of locomotive numbers is a necessary prerequisite for the efficient and precise completion of shunting operation.

[0003] The locomotive number tracking technology has a wide range of applications, and existing locomotive number tracking methods mainly include satellite positioning tracking and track circuit tracking. The satellite positioning tracking method represented by GPS technology has been applied to the field of rail transit. However, it is affected by many objective factors, including positioning accuracy, buildings, weather and other factors. Thus, the stability of this method is difficult to meet the high requirements for the tracking of locomotives and rolling stock in the field of rail transit. The track circuit tracking method usually determines the locomotive position by means of the occupation and the clearing conditions of the track circuit. However, the track circuit may be subject to abnormal occupation, such that the reliability and accuracy of locomotive number tracking relying solely on the occupation and clearing of the track circuit are insufficient.SUMMARY

[0004] An objective of the present disclosure is to provide a locomotive number tracking method to improve the accuracy and reliability of locomotive number tracking and position reporting, thereby enhancing the operational efficiency of railway transportation.

[0005] To achieve the above objective, the present disclosure is implemented by the following technical solutions: A locomotive number tracking method, including: handling a shunting route for a locomotive number and acquiring indication information of a station yard signal device; acquiring a running direction of the locomotive number according to the indication information of the station yard signal device; acquiring an auxiliary tracking data set according to a logic diagram of the station yard signal device and the running direction of the locomotive number, where the auxiliary tracking data set comprises the locomotive number, a signal, and a route locking section; acquiring indication information of a track section when a status of the track section in the shunting route changes; and matching the indication information of the track section with the auxiliary tracking data set to search for an initial signal device and a target signal device of a movement of the locomotive number, so as to track the locomotive number.

[0006] Optionally, the indication information of a station yard signal device includes a station number of a station yard where a signal device is located, a type of the signal device, a serial number of the signal device and status information of the signal device; and the signal device comprises a signal and a track section.

[0007] Optionally, the step of acquiring a running direction of the locomotive number according to the indication information of the station yard signal device includes: determining whether the signal device is a shunting signal according to the type of the signal device; determining whether the shunting signal opens a permissive signal according to the status information of the signal device when the signal device is the shunting signal; and acquiring the running direction of the locomotive number according to a protection direction of the shunting signal when the shunting signal opens the permissive signal.

[0008] Optionally, the step of acquiring an auxiliary tracking data set according to a logic diagram of the station yard signal device and the running direction of the locomotive number includes: searching for the signal device adjacent to the shunting signal in the station yard in a direction opposite to the running direction of the locomotive number according to the logic diagram of the station yard signal device and recording the signal device as a first counter-directional adjacent signal device; recording the locomotive number when the first counter-directional adjacent signal device is a track section in an occupied status and has a locomotive number; with the shunting signal as a starting point, searching for the signal device adjacent to the shunting signal in the station yard in the running direction of the locomotive number according to the logic diagram of the station yard signal device and recording the signal device as a first co-directional adjacent signal device; recording the locked section when the first co-directional adjacent signal device is a locked track section; continuously searching for a next first co-directional adjacent signal device according to the running direction of the locomotive number; and stopping the search and generating the auxiliary tracking data set when the next first co-directional adjacent signal device is an unlocked track section.

[0009] Optionally, the indication information of the track section includes: a station number of a station yard where the track section is located, a type of the track section, a serial number of the track section and status information of the track section.

[0010] Optionally, the step of matching the indication information of the track section with the auxiliary tracking data set to search for an initial signal device and a target signal device of a movement of the locomotive number includes: using the corresponding track section as the target signal device of the movement of the locomotive number when the track section in the shunting route is currently in an occupied status and has no locomotive number; matching the track section with the auxiliary tracking data set to acquire the running direction of the locomotive number in the shunting route; searching for the signal device adjacent to the shunting signal in the station yard in a direction opposite to the running direction of the locomotive number in the shunting route according to the logic diagram of the station yard signal device and recording the signal device as a second counter-directional adjacent signal device; using the second counter-directional adjacent signal device as the initial signal device of the movement of the locomotive number when the second counter-directional adjacent signal device is a track section in the current station yard that is in an occupied status and has a locomotive number; and moving the locomotive number from the initial signal device to the target signal device.

[0011] Optionally, the step of matching the indication information of the track section with the auxiliary tracking data set to search for an initial signal device and a target signal device of a movement of the locomotive number further includes: acquiring a previous status of the track section when a current status of the track section in the shunting route is a cleared status; using the track section as the initial signal device of the movement of the locomotive number when the track section is previously in the occupied status and has a locomotive number; matching the track section with the auxiliary tracking data set to acquire the running direction of the locomotive number in the shunting route; searching for the signal device adjacent to the shunting signal in the station yard in a direction opposite to the running direction of the locomotive number in the shunting route according to the logic diagram of the station yard signal device and recording the signal device as a third counter-directional adjacent signal device; using the third counter-directional adjacent signal device as the target signal device of the movement of the locomotive number when the third counter-directional adjacent signal device is a track section in the current station yard that is in an occupied status and has no locomotive number; and moving the locomotive number from the initial signal device to the target signal device.

[0012] Optionally, the step of matching the indication information of the track section with the auxiliary tracking data set to search for an initial signal device and a target signal device of a movement of the locomotive number further includes: determining whether the track section matches the auxiliary tracking data set when the current status of the track section in the shunting route is poor shunting; and if the track section matches the auxiliary tracking data set, regarding the current status of the track section as an occupied status.

[0013] Optionally, the running direction of the locomotive number includes an up direction and a down direction.

[0014] Optionally, the track section includes a track, a switchless section, and a switch section.

[0015] In another aspect, the present disclosure further provides a locomotive number tracking system, configured to execute the locomotive number tracking method described above.

[0016] Compared with the prior art, the present disclosure at least has one of the following advantages: According to the locomotive number tracking method and system provided by the present disclosure, after the shunting route of the locomotive number is handled, the running direction of the locomotive number is acquired according to the indication information of the station yard signal device; the auxiliary tracking data set is acquired according to the logic diagram of the station yard signal device and the running direction of the locomotive number, where the auxiliary tracking data set includes the locomotive number, the signal, and the route locking section; indication information of the track section is acquired when the status of the track section in the shunting route changes; and the indication information of the track section is matched with the auxiliary tracking data set to search for the initial signal device and the target signal device of the movement of the locomotive number, so as to track the locomotive number.

[0017] Based on track circuit tracking in the present disclosure, locomotive number tracking is assisted by preconditions such as signals and route locking sections, while also adapting to the abnormal condition of poor shunting of the track circuit, such that the locomotive number tracking can be effectively and correctly achieved, and the accuracy and reliability of locomotive number tracking and position reporting are improved, thereby enhancing the operational efficiency of railway transportation.

[0018] The present disclosure features a wide application range and a low investment cost. The locomotive number tracking is a basic function of a train dispatching command system (TDCS). Since the TDCS has been popularized across the entire railway network, the present disclosure can be applied to almost all lines of the entire railway network, and the equipment investment cost only includes the expenses for the optimization and upgrading of the existing TDCS.BRIEF DESCRIPTION OF THE DRAWINGS

[0019] FIG. 1 is a flow diagram of a locomotive number tracking method provided by the present disclosure. FIG. 2 is a flow diagram where an auxiliary tracking data set is generated in a locomotive number tracking method provided by the present disclosure. FIG. 3 is a flow diagram where locomotive number tracking is performed in a locomotive number tracking method provided by the present disclosure. FIG. 4 is a schematic diagram before a locomotive number occupies a track section in a locomotive number tracking method provided by the present disclosure. FIG. 5 is a schematic diagram after a locomotive number occupies a track section in a locomotive number tracking method provided by the present disclosure. FIG. 6 is a schematic diagram before a locomotive number releases the occupied track section in a locomotive number tracking method provided by the present disclosure. FIG. 7 is a schematic diagram after a locomotive number releases the occupied track section in a locomotive number tracking method provided by the present disclosure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The locomotive number tracking method based on a station yard signal status provided by the present disclosure will be further described in detail below in conjunction with drawings and specific embodiments. According to the following description, the advantages and features of the present disclosure will become more apparent. It should be noted that the drawings are in a very simplified form and all use imprecise scales, which are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention. In order to make the objectives, features and advantages of the present invention more comprehensible, please refer to the accompanying drawings. It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to the present invention are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the limiting conditions implemented by the present invention, so it has no technical substantive meaning, and any modification of structure, change of proportional relationship or adjustment of size shall still fall within the scope covered by the disclosed technical content of the present invention without affecting the effect and purpose of the present invention.

[0021] It should be noted that in this specification, relational terms such as "first", "second" and the like are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. Furthermore, the terms "comprises", "includes" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, object or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, object or equipment. Without further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, object or equipment including the element.

[0022] Referring to FIGS. 1-7, this embodiment provides a locomotive number tracking method, including the following steps: S11, handling a shunting route for a locomotive number and acquiring indication information of a station yard signal device; S12, acquiring a running direction of the locomotive number according to the indication information of the station yard signal device; S13, searching for the locomotive number and the shunting route according to a logic diagram of the station yard signal device and the running direction of the locomotive number, to acquire an auxiliary tracking data set, including the locomotive number, a signal, and a route locking section; S14, acquiring the indication information of the track section when the status of the track section in the shunting route changes; and S15, matching the indication information of the track section with the auxiliary tracking data set to search for an initial signal device and a target signal device of a movement of the locomotive number, so as to track the locomotive number. It can be understood that the locomotive number is a code assigned for the purpose of uniquely identifying and managing a locomotive; the locomotive number is generally composed of a combination of numerals and letters.

[0023] Specifically, in step S11, when the shunting route of the locomotive number is handled, the locomotive number of a corresponding locomotive should be added. The indication information of a station yard signal device includes a station number of a station yard where a signal device is located, a type of the signal device, a serial number of the signal device and status information of the signal device; and the signal device includes a signal and a track section. The signal includes a home signal, a starting signal, a shunting signal, a route signal for receiving, a route signal for departure, an announcing signal, a block signal, and the like. The track section includes a track, a switchless section, and a switch section. However, the present disclosure is not limited thereto.

[0024] Specifically, step S12 includes: S121, whether the signal device is a shunting signal is determined according to the type of the signal device; S122, whether the shunting signal opens a permissive signal is determined according to the status information of the signal device when the signal device is the shunting signal; and S123, the running direction of the locomotive number is acquired according to a protection direction of the shunting signal when the shunting signal opens the permissive signal.

[0025] In this embodiment, in step S121, whether the signal device is the shunting signal is determined one by one according to the type of the signal device in the indication information of the station yard signal device; and if the signal device is not the shunting signal, the operation is finished; and if the signal device is the shunting signal, step S122 is executed. In step S122, if the status information of the signal device is blue light, indicating that the shunting signal does not open the permissive signal, the operation is finished; and if the status information of the signal device is lunar white light, indicating that the shunting signal opens the permissive signal, step S123 is executed. In step S123, the running direction of the locomotive number includes an up direction and a down direction.

[0026] Specifically, step S13 includes: S131, the signal device adjacent to the shunting signal in the station yard is searched in a direction opposite to the running direction of the locomotive number according to the logic diagram of the station yard signal device and the signal device as a first counter-directional adjacent signal device is recorded; S132, the locomotive number is recorded when the first counter-directional adjacent signal device is a track section in an occupied status and with a locomotive number; S133, with the shunting signal as a starting point, the signal device adjacent to the shunting signal in the station yard is searched in the running direction of the locomotive number according to the logic diagram of the station yard signal device and the signal device is recorded as a first co-directional adjacent signal device; S134, the locked section is recorded when the first co-directional adjacent signal device is a locked track section; S135, a next first co-directional adjacent signal device is continuously searched according to the running direction of the locomotive number; and S136, the search is stopped and the auxiliary tracking data set is generated when the next first co-directional adjacent signal device is an unlocked track section.

[0027] In this embodiment, as shown in FIG. 2, step S132 includes: step S1321, whether the first counter-directional adjacent signal device is the track section is determined, where if the first counter-directional adjacent signal device is not the track section, step S131 is executed; and if the first counter-directional adjacent signal device is the track section, step S1322 is executed. Step S1322, whether the first counter-directional adjacent signal device is currently in an occupied status, where if the first counter-directional adjacent signal device is currently not in an occupied status, step S133 is executed; and if the first counter-directional adjacent signal device is currently in an occupied status, step S1323 is executed. Step S1323, whether the current status of the first counter-directional adjacent signal device includes the locomotive number is determined, where if the current status of the first counter-directional adjacent signal device does not include the locomotive number, step S131 is executed; and if the current status of the first counter-directional adjacent signal device includes the locomotive number, the locomotive number is recorded. It can be seen from the above that a condition for finishing the search for the signal device adjacent to the shunting signal in the station yard in a direction opposite to the running direction of the locomotive number is as follows: the signal device searched in the direction opposite to the running direction of the locomotive number is the track section in the occupied status and has the locomotive number; or the signal device searched in the direction opposite to the running direction of the locomotive number is not occupied.

[0028] In this embodiment, step S134 includes: step S1341, whether the first co-directional adjacent signal device is the track section is determined, where if the first co-directional adjacent signal device is not the track section, step S133 is executed; and if the first co-directional adjacent signal device is the track section, step S1342 is executed. Step S1342, whether the first co-directional adjacent signal device is the locked track section is determined, where if the first counter-directional adjacent signal device is not the locked track section, a shunting operation route is determined, and the search is stopped and the auxiliary tracking data set is generated; and if the first counter-directional adjacent signal device is the locked track section, the locked section is recorded and step S133 is executed.

[0029] Specifically, in step S14, the indication information of the track section includes a station number of a station yard where the track section is located, a type of the track section, a serial number of the track section, and status information of the track section (for example, the status being an occupied status, a cleared status or poor shunting, and whether there is a locomotive number).

[0030] Specifically, step S15 includes: step S151, the corresponding track section is used as the target signal device of the movement of the locomotive number when the track section in the shunting route is currently in an occupied status and has no locomotive number; S152, the track section is matched with the auxiliary tracking data set to acquire the running direction of the locomotive number in the shunting route; S153, the signal device adjacent to the shunting signal in the station yard is searched in a direction opposite to the running direction of the locomotive number in the shunting route according to the logic diagram of the station yard signal device and the signal device as a second counter-directional adjacent signal device is recorded; S154, the second counter-directional adjacent signal device is used as the initial signal device of the movement of the locomotive number when the second counter-directional adjacent signal device is a track section in the current station yard that is in an occupied status and has a locomotive number; and S155, the locomotive number is moved from the initial signal device to the target signal device.

[0031] Specifically, the operation of matching the track section with the auxiliary tracking data includes one or any combination of comparing the target signal device with a route locking section in the auxiliary tracking data set, comparing the locomotive number of the initial signal device with the locomotive number in the auxiliary tracking data set, and comparing the direction of the movement of the locomotive number with the protection direction of the shunting signal in the auxiliary tracking data set.

[0032] In this embodiment, as shown in FIG. 3, in step S151, when the track section in the shunting route is currently in the occupied status and has the locomotive number, the operation is finished. In step S152, whether the track section used as the target signal device of the movement of the locomotive number matches the route locking section in the auxiliary tracking data set (whether the two are consistent) is determined, where if the track section used as the target signal device of the movement of the locomotive number matches the route locking section in the auxiliary tracking data set, the running direction of the locomotive number determined in step S123 is used as the running direction of the locomotive number in the shunting route; and if the track section used as the target signal device of the movement of the locomotive number does not match the route locking section in the auxiliary tracking data set, the up direction or the down direction is successively used as the running direction of the locomotive number in the shunting route until the initial signal device of the movement of the locomotive number is found or both up and down directions are traversed.

[0033] In this embodiment, step S154 includes: step S1541, whether the second counter-directional adjacent signal device is the signal device in the current station yard, where if the second counter-directional adjacent signal device is not the signal device in the current station yard, whether the initial signal device of the locomotive number has been confirmed is determined; and if the second counter-directional adjacent signal device is the signal device in the current station yard, step S1542 is executed. Step S1542, whether the second counter-directional adjacent signal device is the track section is determined, where if the second counter-directional adjacent signal device is not the track section, step S153 is executed; and if the second counter-directional adjacent signal device is the track section, step S1543 is executed. Step S1543, whether the current status of the second counter-directional adjacent signal device is an occupied status is determined, where if the current status of the second counter-directional adjacent signal device is not an occupied status, whether the initial signal device of the locomotive number has been confirmed is determined; and if the current status of the second counter-directional adjacent signal device is an occupied status, step S1544 is executed. Step S1544, whether the current status of the second counter-directional adjacent signal device includes the locomotive number, where if the current status of the second counter-directional adjacent signal device does not include the locomotive number, step S153 is executed; and if the current status of the second counter-directional adjacent signal device includes the locomotive number, the second counter-directional adjacent signal device including the locomotive number is used as the initial signal device of the movement of the locomotive number. Before step S155 is executed, the step further includes: whether the initial signal device of the locomotive has been confirmed is determined, where if the initial signal device of the locomotive has been confirmed, step S155 is executed; and if the initial signal device of the locomotive has not been determined, the operation is finished. In addition, before step S155 is executed, the step may further include: the locomotive number of the initial signal device is compared with the locomotive number in the auxiliary tracking data set or the direction of the movement of the locomotive number is compared with the protection direction of the shunting signal in the auxiliary tracking data set. However, the present disclosure is not limited thereto.

[0034] In some embodiments, step S15 further includes: S156, a previous status of the track section is acquired when a current status of the track section in the shunting route is a cleared status; S157, the track section is used as the initial signal device of the movement of the locomotive number when the track section is previously in the occupied status and has a locomotive number; S158, the track section is matched with the auxiliary tracking data set to acquire the running direction of the locomotive number in the shunting route; S159, the signal device adjacent to the shunting signal in the station yard is searched in a direction opposite to the running direction of the locomotive number in the shunting route according to the logic diagram of the station yard signal device and the signal device is recorded as a third counter-directional adjacent signal device; S160, the third counter-directional adjacent signal device is used as the target signal device of the movement of the locomotive number when the third counter-directional adjacent signal device is a track section in the current station yard that is in an occupied status and has no locomotive number; and S161, the locomotive number is moved from the initial signal device to the target signal device.

[0035] In this embodiment, step S157 further includes: step S1571, whether the previous status of the track section is an occupied status is determined, where if the previous status of the track section is not an occupied status, the operation is finished; and if the previous status of the track section is an occupied status, step S1572 is executed. Step S1572, whether the previous status of the track section includes the locomotive number is determined, where if the previous status of the track section does not include the locomotive number, the operation is finished; and if the previous status of the track section includes the locomotive number, the track section including the locomotive number is used as the initial signal device of the movement of the locomotive.

[0036] In step S158, whether the locomotive number of the initial signal device matches the locomotive number in the auxiliary tracking data set (whether the two are consistent) is determined, where if the locomotive number of the initial signal device matches the locomotive number in the auxiliary tracking data set, the running direction of the locomotive number determined in step S123 is used as the running direction of the locomotive number in the shunting route; and if the locomotive number of the initial signal device does not match the locomotive number in the auxiliary tracking data set, the up direction or the down direction is successively used as the running direction of the locomotive number in the shunting route until the target signal device of the movement of the locomotive number is found or both up and down directions are traversed.

[0037] Step S160 includes: step S1601, whether the third counter-directional adjacent signal device is the signal device in the current station yard is determined, where if the third counter-directional adjacent signal device is not the signal device in the current station yard, whether the target signal device of the locomotive number has been confirmed is determined; and if the third counter-directional adjacent signal device is the signal device in the station yard, step S1602 is executed. Step S1602, whether the third counter-directional adjacent signal device is the track section is determined, where if the third counter-directional adjacent signal device is not the track section, step S159 is executed; and if the third counter-directional adjacent signal device is the track section, step S1603 is executed. Step S1603, whether the current status of the third counter-directional adjacent signal device is an occupied status is determined, where if the current status of the third counter-directional adjacent signal device is not an occupied status, whether the target signal device of the locomotive number has been confirmed is determined; and if the current status of the third counter-directional adjacent signal device is an occupied status, step S1604 is executed. Step S1604, whether the current status of the third counter-directional adjacent signal device includes the locomotive number, where if the current status of the third counter-directional adjacent signal device includes the locomotive number, whether the target signal device of the locomotive number has been confirmed is determined; and if the current status of the third counter-directional adjacent signal device does not include the locomotive number, the third counter-directional adjacent signal device is used as the target signal device of the movement of the locomotive number. Before step S161 is executed, the step further includes: whether the target signal device of the locomotive number has been confirmed is determined, where if the target signal device of the locomotive number has been confirmed, step S161 is executed; and if the target signal device of the locomotive number has not been determined, the operation is finished. In addition, before step S161 is executed, the step may further include: the initial signal device is compared with the route locking section in the auxiliary tracking data set or the direction of the movement of the locomotive number is compared with the protection direction of the shunting signal in the auxiliary tracking data set. However, the present disclosure is not limited thereto.

[0038] In some embodiments, step S15 further includes: step S162, when the current status of the track section in the shunting route is poor shunting, whether the track section matches the auxiliary tracking data set is determined, where if the track section matches the auxiliary tracking data set, the current status of the track section is regarded as an occupied status.

[0039] FIG. 4 and FIG. 5 show schematic diagrams for change processing of the locomotive number entering the track section. A locomotive number "shunting 0088"is located in a switchless section IIIAG, shunting routes D1-D5 are handled in front, the shunting signal D1 opens a permissive signal, and the running direction of the locomotive number "shunting 0088" is the down direction according to the protection direction of the shunting signal D1. Combined with the information of the locomotive number and a locked switch section 1-3DG in the route, the auxiliary tracking data set is generated. When the switch section 1-3DG turns into an occupied red light band, the indication information of the occupied status of the switch section 1-3DG can be acquired. First, whether an indication status of the switch section 1-3DG has the information of the locomotive number is checked. If the indication status of the switch section 1-3DG does not have the information of the locomotive number, the switch section 1-3DG is used as the target signal device of the movement of the locomotive number "shunting 0088". Then, the indication status of the switch section 1-3DG is matched with the auxiliary tracking data set to obtain the running direction which is the down direction, and then an adjacent track section is searched according to the up direction (opposite to the running direction), and whether the status is an occupied status and there is the information of the locomotive number is checked. A condition is met when the switchless section IIIAG is found. The IIIAG is currently in the occupied status, and has the locomotive number "shunting 0088". The switchless section IIIAG is used as the initial signal device of the movement of the locomotive number "shunting 0088", and then the locomotive number "shunting 0088" is moved from the switchless section IIIAG to the terminal switch section 1-3DG to achieve locomotive number tracking.

[0040] FIG. 6 and FIG. 7 are schematic diagrams of change processing of the track section where the locomotive number is located. After the shunting routes D1-D5 have been handled and the track I is occupied, the locomotive number "shunting 0088" is moved from the switch section 1-3DG to the track I. In this case, occupation of the track I is canceled to acquire the indication information of the cleared status of the track I. First, whether the original status of the track is occupied and there is the locomotive number is checked. If yes, the track I is used as the initial signal device of the locomotive number "shunting 0088". Then, the indication information of the track I is matched with the auxiliary tracking data set to obtain the running direction which is the down direction, and then an adjacent track section is searched according to the up direction (opposite to the running direction), and whether the status is occupied and there is no information of the locomotive number is checked. A condition is met when the switch section 1-3DG is found. The switch section 1-3DG is currently in the occupied status, and has no information of the locomotive number. The switch section 1-3DG is used as the target signal device of the movement of the locomotive number. When the switchless section IIIAG is continuously found, since IIIAG is not in the occupied state, the condition is not met, and searching is finished. Finally, the switch section 1-3DG is used as the target signal device of the movement of the locomotive, and the locomotive number "shunting 0088" is moved from the starting track I to the terminal switch section 1-3DG to achieve locomotive number tracking.

[0041] Based on the same invention concept, this embodiment further provides a locomotive number tracking system, configured to execute the locomotive number tracking method described above.

[0042] To sum up, according to the locomotive number tracking method and system provided by this embodiment, after the shunting route of the locomotive number is handled, the running direction of the locomotive number is acquired according to the indication information of the station yard signal device; the auxiliary tracking data set is acquired according to the logic diagram of the station yard signal device and the running direction of the locomotive number, where the auxiliary tracking data set includes the locomotive number, the signal, and the route locking section; indication information of the track section is acquired when the status of the track section in the shunting route changes; and the indication information of the track section is matched with the auxiliary tracking data set to search for the initial signal device and the target signal device of the movement of the locomotive number, so as to track the locomotive number. Based on track circuit tracking in the present disclosure, locomotive number tracking is assisted by preconditions such as signals and route locking sections, while also adapting to the abnormal condition of poor shunting of the track circuit, such that the locomotive number tracking can be effectively and correctly achieved, and the accuracy and reliability of locomotive number tracking and position reporting are improved, thereby enhancing the operational efficiency of railway transportation. The present disclosure features a wide application range and a low investment cost. The locomotive number tracking is a basic function of a train dispatching command system (TDCS). Since the TDCS has been popularized across the entire railway network, the present disclosure can be applied to almost all lines of the entire railway network, and the equipment investment cost only includes the expenses for the optimization and upgrading of the existing TDCS.

[0043] Although the content of the present disclosure has been described in detail through the above preferred embodiments, it should be understood that the above description shall not be deemed as a limitation on the present disclosure. After those skilled in the art have read the above content, various modifications and alternatives to the present disclosure will be apparent. Therefore, the protection scope of the present disclosure shall be defined by the appended claims.

Examples

Embodiment Construction

[0020]The locomotive number tracking method based on a station yard signal status provided by the present disclosure will be further described in detail below in conjunction with drawings and specific embodiments. According to the following description, the advantages and features of the present disclosure will become more apparent. It should be noted that the drawings are in a very simplified form and all use imprecise scales, which are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention. In order to make the objectives, features and advantages of the present invention more comprehensible, please refer to the accompanying drawings. It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to the present invention are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the limiti...

Claims

1. A locomotive number tracking method, comprising: handling a shunting route for a locomotive number and acquiring indication information of a station yard signal device; acquiring a running direction of the locomotive number according to the indication information of the station yard signal device; acquiring an auxiliary tracking data set according to a logic diagram of the station yard signal device and the running direction of the locomotive number, where the auxiliary tracking data set comprises the locomotive number, a signal, and a route locking section; acquiring indication information of a track section when a status of the track section in the shunting route changes; and matching the indication information of the track section with the auxiliary tracking data set to search for an initial signal device and a target signal device of a movement of the locomotive number, so as to track the locomotive number.

2. The locomotive number tracking method according to claim 1, wherein the indication information of a station yard signal device comprises a station number of a station yard where a signal device is located, a type of the signal device, a serial number of the signal device and status information of the signal device; and the signal device comprises a signal and a track section.

3. The locomotive number tracking method according to claim 2, wherein the step of acquiring a running direction of the locomotive number according to the indication information of the station yard signal device comprises: determining whether the signal device is a shunting signal according to the type of the signal device; determining whether the shunting signal opens a permissive signal according to the status information of the signal device when the signal device is the shunting signal; and acquiring the running direction of the locomotive number according to a protection direction of the shunting signal when the shunting signal opens the permissive signal.

4. The locomotive number tracking method according to claim 3, wherein the step of acquiring an auxiliary tracking data set according to a logic diagram of the station yard signal device and the running direction of the locomotive number comprises: searching for the signal device adjacent to the shunting signal in the station yard in a direction opposite to the running direction of the locomotive number according to the logic diagram of the station yard signal device and recording the signal device as a first counter-directional adjacent signal device; recording the locomotive number when the first counter-directional adjacent signal device is a track section in an occupied status and has a locomotive number; with the shunting signal as a starting point, searching for the signal device adjacent to the shunting signal in the station yard in the running direction of the locomotive number according to the logic diagram of the station yard signal device and recording the signal device as a first co-directional adjacent signal device; recording the locked section when the first co-directional adjacent signal device is a locked track section; continuously searching for a next first co-directional adjacent signal device according to the running direction of the locomotive number; and stopping the search and generating the auxiliary tracking data set when the next first co-directional adjacent signal device is an unlocked track section.

5. The locomotive number tracking method according to claim 1, wherein the indication information of the track section comprises: a station number of a station yard where the track section is located, a type of the track section, a serial number of the track section and status information of the track section.

6. The locomotive number tracking method according to claim 5, wherein the step of matching the indication information of the track section with the auxiliary tracking data set to search for an initial signal device and a target signal device of a movement of the locomotive number comprises: using the corresponding track section as the target signal device of the movement of the locomotive number when the track section in the shunting route is currently in an occupied status and has no locomotive number; matching the track section with the auxiliary tracking data set to acquire the running direction of the locomotive number in the shunting route; searching for the signal device adjacent to the shunting signal in the station yard in a direction opposite to the running direction of the locomotive number in the shunting route according to the logic diagram of the station yard signal device and recording the signal device as a second counter-directional adjacent signal device; using the second counter-directional adjacent signal device as the initial signal device of the movement of the locomotive number when the second counter-directional adjacent signal device is a track section in the current station yard that is in an occupied status and has a locomotive number; and moving the locomotive number from the initial signal device to the target signal device.

7. The locomotive number tracking method according to claim 5, wherein the step of matching the indication information of the track section with the auxiliary tracking data set to search for an initial signal device and a target signal device of a movement of the locomotive number further comprises: acquiring a previous status of the track section when a current status of the track section in the shunting route is a cleared status; using the track section as the initial signal device of the movement of the locomotive number when the track section is previously in the occupied status and has a locomotive number; matching the track section with the auxiliary tracking data set to acquire the running direction of the locomotive number in the shunting route; searching for the signal device adjacent to the shunting signal in the station yard in a direction opposite to the running direction of the locomotive number in the shunting route according to the logic diagram of the station yard signal device and recording the signal device as a third counter-directional adjacent signal device; using the third counter-directional adjacent signal device as the target signal device of the movement of the locomotive number when the third counter-directional adjacent signal device is a track section in the current station yard that is in an occupied status and has no locomotive number; and moving the locomotive number from the initial signal device to the target signal device.

8. The locomotive number tracking method according to claim 5, wherein the step of matching the indication information of the track section with the auxiliary tracking data set to search for an initial signal device and a target signal device of a movement of the locomotive number further comprises: determining whether the track section matches the auxiliary tracking data set when the current status of the track section in the shunting route is poor shunting; and if the track section matches the auxiliary tracking data set, regarding the current status of the track section as an occupied status.

9. The locomotive number tracking method according to claim 1, wherein the running direction of the locomotive number comprises an up direction and a down direction.

10. The locomotive number tracking method according to claim 1, wherein the track section comprises a track, a switchless section, and a switch section.

11. A locomotive number tracking system, configured to execute the locomotive number tracking method according to any one of claims 1-10.

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