Searching method and system for positioning inaccessible turnout in first section outside signal machine

Abstract

The invention discloses a searching method and system for positioning an unreachable turnout in a first section outside a signal machine, and the method comprises the steps: obtaining all signal equipment in a specified station, and the signal equipment at least comprises a signal machine, a section and a turnout; for each annunciator, acquiring the direction of the annunciator, and searching along the direction opposite to the direction of the annunciator by taking the annunciator as a starting point to determine a first section outside the annunciator corresponding to the annunciator; aiming at each annunciator, taking the annunciator as a starting point, taking a direction opposite to the annunciator direction of the annunciator as an initial searching direction, and sequentially searching and judging each signal device in a first section outside the annunciator corresponding to the annunciator; wherein when the searched signal equipment is the turnout, the current searching direction is the convergence direction of the turnout, and the last signal equipment is connected with the reverse branch of the turnout, the turnout is judged to be the turnout which cannot be positioned in the first section outside the signal machine, and recording is carried out.

Description

Technical Field

[0001] The present invention relates to the technical field of track signal equipment, and in particular to a search method and system for locating an inaccessible turnout in a first section outside a signal machine. Background Art

[0002] Automatic interlocking rule testing involves verifying that the route's start signal can be properly closed and unlocked by simulating automatic train movement after the corresponding route is processed according to the interlocking table. Before simulating automatic train movement, the switch position within the first section outside the route's start signal must be used to determine whether the section is normally occupied, thereby generating normal cross-pressure to generate the start signal's closing condition.

[0003] For switches in the first section outside the signal, which can lead to the route start signal in the reverse position but cannot lead to the start signal in the positioning, they need to be switched to the reverse position during the automatic test. Therefore, it is necessary to identify in advance all switches in the first section outside the signal that do not lead to the signal in the normal positioning but can lead to the signal in the reverse position, that is, switches in the first section outside the signal that are positioned inaccessible.

[0004] However, currently in the interlocking information table, the inaccessible turnouts located in the first section outside the signal need to be manually configured by the signal designer. This method has the following problems:

[0005] (1) Manual configuration is inefficient. Especially for large stations with a large number of signal machines, the number of signal machines in the station may reach hundreds. Manually configuring all the signal machines in the station to locate the inaccessible turnouts in the first section is tedious and burdensome, resulting in low configuration efficiency.

[0006] (2) Manual configuration is difficult to guarantee accuracy. In particular, some sections may have multiple sets of switches, including single-action switches and double-action switches. It is necessary to manually confirm whether they are unreachable switches before filling in the switch names, which is prone to errors or omissions.

[0007] (3) The degree of automation in interlocking data design is limited, making it difficult to meet safety requirements. Interlocking data has high safety requirements. Reducing manual data configuration and improving the degree of automation in data design are the current goals and trends in interlocking data production. Manually filling in the configuration of the first section of the outer side of all signals in the station to locate inaccessible switches increases the manual involvement link and is not conducive to data integration.

[0008] In view of the above problems, there is an urgent need for a search method and system for locating inaccessible turnouts in the first section outside a signal machine with a high degree of automation.

[0009] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art. Summary of the Invention

[0010] The purpose of the present invention is to provide a search method and system for locating inaccessible turnouts in the first section outside the signal, which is used to address the problem that the first section outside the signal is manually configured by signal designers, which is inefficient and difficult to ensure accuracy, and restricts the degree of automation of interlocking data. By determining the first section outside the signal for each signal, and searching and judging each signal device in the first section outside the signal in turn, it is possible to automatically count all the inaccessible turnouts in the first section outside the signal corresponding to each signal, with a high degree of automation, which is conducive to improving efficiency and avoiding omissions and errors in manual configuration.

[0011] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0012] A first aspect of the present invention provides a method for searching for an inaccessible turnout in a first section outside a signal, comprising:

[0013] Obtain all signal equipment in a specified station, wherein the signal equipment includes at least signals, sections, and switches;

[0014] For each signal, obtain the direction of the signal, and search in the opposite direction of the signal direction starting from the signal to determine the first section outside the signal corresponding to the signal;

[0015] For each signal machine, take the signal machine as the starting point and the opposite direction of the signal machine of the signal machine as the initial search direction, and search and judge each signal device in turn in the first section outside the signal machine corresponding to the signal machine; wherein, when the searched signal device is a turnout, the current search direction is the convergence direction of the turnout, and the previous signal device is connected to the reverse branch of the turnout, it is judged that the turnout is an inaccessible turnout located in the first section outside the signal machine.

[0016] Optionally, determining the first section outside the signal corresponding to the signal includes: taking a first section searched in a direction opposite to the direction of the signal as the first section outside the signal.

[0017] Optionally, for each signal, when there is no track section in the opposite direction of the signal direction of the signal, it is determined that there is no corresponding first section outside the signal for the signal, and the search for locating the inaccessible turnout in the first section outside the signal is ended.

[0018] Optionally, for each signal, when the first section outside the signal corresponding to the signal is a non-branch section, track or dead end line, the search for locating an inaccessible switch in the first section outside the signal is terminated.

[0019] Optionally, the searching and judging each signal device in sequence within the first section outside the signal corresponding to the signal includes:

[0020] When the searched signal device is a turnout and the current search direction is the divergent direction of the turnout, the search is continued with the positioning direction and the reverse positioning direction of the turnout as new search directions.

[0021] Optionally, the searching and judging each signal device in sequence within the first section outside the signal corresponding to the signal includes:

[0022] When the searched signal device is a turnout, and the current search direction is the convergence direction of the turnout, and the previous signal device is connected to the positioning branch of the turnout, the search is continued with the positioning direction of the turnout as the new search direction.

[0023] Optionally, the searching and judging each signal device in sequence within the first section outside the signal corresponding to the signal includes:

[0024] When the searched signal device is a turnout, and the turnout is an inaccessible turnout located in the first section outside the signal machine, the search is continued with the reverse direction of the turnout as the new search direction.

[0025] Optionally, the searching and judging each signal device in sequence within the first section outside the signal corresponding to the signal includes:

[0026] When the signal device found is an endpoint, the search for the current search direction ends.

[0027] Optionally, the searching and judging each signal device in sequence within the first section outside the signal corresponding to the signal includes:

[0028] When the searched signal device does not belong to the first section outside the signal machine, the search in the current search direction is ended.

[0029] Optionally, for each signal, after completing the search in all search directions, all the inaccessible switches located in the first section outside the searched signal are output.

[0030] Optionally, all signal equipment in a designated station is obtained based on the topological relationship and data definition in the national railway station map data.

[0031] Optionally, corresponding to each signal machine, all the searched turnouts that are inaccessible in the first section outside the signal machine are deduplicated, and based on the topological relationship in the national railway station map data, the turnout names of the turnouts that are inaccessible in the first section outside each signal machine are output in sequence from near to far.

[0032] A second aspect of the present invention provides a search system for locating an inaccessible turnout in a first section outside a signal, comprising:

[0033] A storage module, configured to obtain and store all signal equipment within a designated station, the signal equipment including signals, sections, and switches;

[0034] an identification module connected to the storage module and configured to identify a first section outside the signal; the section identification module being configured to obtain a direction of the signal for each signal, and to search in a direction opposite to the direction of the signal, starting from the signal, to determine the first section outside the signal corresponding to the signal;

[0035] A judgment module, connected to the storage module and the identification module, is used to search and judge the signal equipment in the first section outside the signal; the judgment module is used to search and judge each signal equipment in turn in the first section outside the signal corresponding to each signal, with the signal as the starting point and the opposite direction of the signal direction of the signal as the initial search direction; wherein, when the searched signal equipment is a turnout, the current search direction is the convergence direction of the turnout, and the previous signal equipment is connected to the reverse branch of the turnout, the judgment module judges that the turnout is an inaccessible turnout in the first section outside the signal.

[0036] Optionally, the storage module is used to obtain all signal equipment in a designated station based on the topological relationship and data definition in the national railway station map data.

[0037] Optionally, the search system for the inaccessible turnouts located in the first section outside the signal machine also includes an output module, which is used to correspond to each signal machine, deduplicate all the searched inaccessible turnouts located in the first section outside the signal machine, and output the turnout name of the inaccessible turnouts located in the first section outside the signal machine in sequence from near to far based on the topological relationship in the national railway station map data.

[0038] The present invention has at least the following technical effects:

[0039] By determining the first section outside the signal for each signal and searching and judging each signal device in the first section outside the signal in turn, it is possible to automatically count the inaccessible turnouts located in the first section outside the signal corresponding to each signal, thereby further integrating the normally inaccessible turnouts in the first section outside the signal of all signals in the platform. The degree of automation is high and no manual modification by signal designers is required, which is conducive to improving efficiency, avoiding omissions and errors in manual configuration, and fully meeting the security requirements for interlocking data. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 A schematic flow chart of a method for searching for an inaccessible turnout in the first section outside a signal provided by one embodiment of the present invention;

[0041] Figure 2 A schematic diagram of a flow chart for sequentially searching and judging signal devices within a first section outside a signal machine according to an embodiment of the present invention;

[0042] Figure 3 A schematic diagram of a station structure provided by an embodiment of the present invention;

[0043] Figure 4 To correspond Figure 3 Schematic diagram of the topological relationship of the middle platform structure. DETAILED DESCRIPTION

[0044] The following is a further detailed description of a search method and system for locating an inaccessible turnout in the first section outside a signal machine proposed by the present invention, in conjunction with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the present invention will become clearer. It should be noted that the drawings are in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, please refer to the drawings. It should be noted that the structure, proportion, size, etc. illustrated in the drawings of this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention, so they have no technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the efficacy and purpose that can be achieved by the present invention.

[0045] like Figure 1 As shown, this embodiment provides a search method for locating an inaccessible turnout in the first section outside the signal, which mainly includes identifying the first section outside the signal corresponding to the signal, and searching and judging the signal equipment in the first section outside the signal to determine the inaccessible turnout located in the first section outside the signal.

[0046] Specifically, in order to identify the first section outside the signal corresponding to the signal, it is necessary to obtain all the signal equipment in the specified station, and the signal equipment includes at least signal machines, sections and switches. For example, all the signal equipment in the specified station can be obtained based on the topological relationship and data definition in the national railway station map data. As those skilled in the art can understand, the signal equipment in the station will be abstracted as a data element node in the station map data. The topological relationship refers to the connection relationship between two data element nodes when the signal equipment in the station map data is drawn according to the actual situation of the station layout. The data definition includes the data type of the data element node (for example, whether the data element node is a signal machine or a track circuit) and the data attributes (for example, the specific direction of the signal machine).

[0047] Furthermore, for each signal, the direction of the signal can be obtained, and starting from the signal, a search can be performed in the opposite direction of the signal to determine the first section outside the signal corresponding to the signal, that is, the first section searched in the opposite direction of the signal is used as the first section outside the signal.

[0048] As those skilled in the art will appreciate, there may be no section outside the signal. Figure 1 In this embodiment, for each signal, if no track section exists in the direction opposite to the signal direction, it can be determined that the signal does not have a corresponding first section outside the signal. The search for locating an unreachable turnout in the first section outside the signal is terminated, meaning that no further search or determination is made for signal equipment within the first section outside the signal.

[0049] Similarly, since there may be no switches in a section (e.g., a non-switch section, a track or a dead end line), there may also be multiple sets of switches. Figure 1 In this embodiment, for each signal, if the first section outside the signal corresponding to the signal is a non-switch section, track, or dead-end track, the search for locating an unreachable turnout in the first section outside the signal is also terminated immediately. Further search and determination of signal equipment within the first section outside the signal is discontinued. Based on the topological relationships and data definitions in the national railway station map data, it is possible to quickly identify whether the first section outside the signal in the station data is a turnout section.

[0050] After identifying the first section outside the signal corresponding to each signal on the platform, it is necessary to search and judge the signal equipment within the first section outside the signal to determine the inaccessible turnouts located in the first section outside the signal. Specifically, starting from the signal, it is necessary to search within the first section outside the signal toward the outside of the signal, obtaining all turnouts on the search path. Turnouts on different paths are screened and judged, ultimately obtaining all turnouts that are located inaccessible to the signal but can be reached in the reverse position.

[0051] More specifically, refer to Figure 2 For each signal, you can use the signal as the starting point and initialize the signal as the previous device (corresponding to Figure 2 lastEqu in the search process, that is, the signal device found during the search (corresponding to Figure 2 The previous signal device corresponding to the item in the signal) is searched in the opposite direction of the signal device, and the search direction is the initial search direction. The first section outside the signal device corresponding to the signal device (corresponding to Figure 2 Search and judge each signal device in turn within the track).

[0052] Among them, when the searched signal equipment is a turnout, it is possible to further determine whether the turnout is an inaccessible turnout in the first section outside the signal based on the specific information of the turnout, and further determine the search direction based on the specific information of the turnout.

[0053] like Figure 2 As shown, we can first determine the direction based on the turnout's convergence. When the signal device is a turnout, if the current search direction is not the turnout's convergence direction but its divergence direction, that is, searching from the guide rail's point rail toward the frog, this indicates that the turnout can lead to the starting signal from both the positioning and reverse directions. In this case, we can use the turnout as the lastEqu and continue searching in both the positioning and reverse directions. In other words, we continue searching using the turnout's positioning and reverse directions as the new search directions.

[0054] When the search direction is the convergence direction of the turnout, that is, searching from the frog of the guide rail to the point rail, further judgment can be made based on the connection relationship between the turnout and the previous signal device. It is understandable that the previous signal device in this case may be the starting signal or another turnout previously searched.

[0055] Specifically, when the searched signal device is a turnout, and the current search direction is the turnout's convergence direction, if the turnout's positioning branch is connected to the previous signal device, it means that the turnout can only lead to the starting signal through the positioning branch. In this case, the search can be continued in the turnout's positioning direction, using the turnout as the lastEqu. In other words, the search can be continued with the turnout's positioning direction as the new search direction.

[0056] If the searched signal device is a turnout, and the current search direction is the turnout's convergence direction, then if the turnout's reverse branch is connected to the previous signal device, then the turnout can only reach the starting signal through the reverse branch. This turnout can be determined to be an unreachable turnout located in the first section outside the signal corresponding to the starting signal, and the turnout name is recorded. This turnout can then be used as the lastEqu and the search can continue in the reverse direction of the turnout, i.e., the search can continue with the reverse direction of the turnout as the new search direction.

[0057] In some embodiments, the acquired signal device also includes an endpoint, such as Figure 2 As shown, in any search direction, if the signal device found by the signal is the endpoint, the search for the current search direction ends. Similarly, if the signal device found does not belong to the first segment outside the signal, for example, if it is a signal other than the starting signal, the search for the current search direction also ends.

[0058] For each signal, after completing the search in all search directions, all the unreachable turnouts located in the first section outside the signal that were found can be output. The output result is all the unreachable turnouts located in the first section outside the signal corresponding to the signal.

[0059] In some embodiments, for each signal, duplicates can be removed from all searched turnouts in the first section outside the signal. Based on the topological relationships in the national railway station map data, the turnout names of each turnout in the first section outside the signal are sequentially output from nearest to farthest relative to the signal. This topologically ordered output from nearest to farthest facilitates data reviewers to verify data and troubleshoot test issues during automated testing.

[0060] It will be appreciated that the search method for locating an inaccessible turnout in the first section outside a signal provided in this embodiment is highly scalable and can be applied to other types of turnouts by modifying the search direction or other parameters. For example, by modifying the initial search direction to the same direction as the signal search and modifying the judgment criteria accordingly, it is possible to search for an inaccessible turnout in the first section inside a signal.

[0061] The following will be taken as an example of a specific platform structure to further illustrate the search method of the first section of the signal machine outside the reach of the turnout. Referring to the track distribution diagram of the station yard part area as shown in Figure 3 The corresponding topological relationship diagram is as shown in Figure 4 The diagram includes shunting signals D1, D3, D5 and D7, turnout section 1-5DG, lead-out line D7G, 1# turnout (positioning straight stock) and 5# turnout (positioning curved stock). Signal machine D1 and signal machine D7 are respectively taken as the objects of the search of the first section of the signal machine outside the reach of the turnout.

[0062] Firstly, for signal machine D7, the corresponding first section of the signal machine outside is section D7G. Since section D7G is a lead-out line, it belongs to a turnout-free section, so signal machine D7 has no corresponding first section of the signal machine outside the reach of the turnout, and there is no need to further search and judge the signal equipment in section D7G. Alternatively, referring to the search process as shown in Figure 2 Taking signal machine D7 as the starting point, search in the opposite direction of the signal machine direction of signal machine D7, at this time the next signal equipment searched is the end point, then the current search direction needs to be ended.

[0063] And for signal machine D1, the corresponding first section of the signal machine outside is section 1-5DG. Since section 1-5DG is a turnout section, it is necessary to further search and judge the signal equipment in the section. Since the signal machine direction corresponding to signal machine D1 is the uplink direction, the search can be carried out in section 1-5DG along the downlink direction with signal machine D1 as the starting point.

[0064] Specifically, the search process includes the following steps:

[0065] Step 1, set signal machine D1 as the initial lastEqu in the search path, as the starting point along the current search direction, i.e. the downlink direction, to search;

[0066] Step 2: search along the downlink direction, the next signal equipment is 1# turnout;

[0067] Step 3: since the current search direction is the downlink direction (from left to right in the diagram), and 1# turnout is a right opening turnout, the current search direction is the divergent direction of 1# turnout, which means that through the positioning direction or the reverse direction of 1# turnout, it can be connected to signal machine D1, so 1# turnout does not belong to the first section of the signal machine outside the reach of the turnout, lastEqu can be updated to 1# turnout, and search along the positioning direction and the reverse direction of 1# turnout respectively;

[0068] Step 4: Continue searching in the reverse direction of turnout 1#. The next signal device is signal D5. Since signal D5 does not belong to the first section outside the signal corresponding to signal D1, this search direction can be terminated and a record is made that no unreachable turnout has been located in the reverse direction of turnout 1#.

[0069] Step 5: Continue searching along the positioning direction of turnout 1#. The next signal device is turnout 5#.

[0070] Step 6: Since the current search direction is the positioning direction of the 1# turnout, that is, the downward direction, and the 5# turnout is a left-opening turnout, the current search direction is the convergence direction of the 5# turnout. Since the previous signal device is the 1# turnout, and the 1# turnout is connected to the reverse branch of the 5# turnout, it means that the 5# turnout can only be accessed through the reverse direction to the signal D1, that is, the 5# turnout is the unreachable turnout located in the first section outside the signal corresponding to the signal D1. The 5# turnout can be recorded, the lastEqu can be updated to the 5# turnout, and the search can be performed along the reverse direction of the 5# turnout.

[0071] Step 7: Search in the reverse direction of turnout 5#, i.e., the down direction. The next device is signal D3, so this search direction ends. At this point, all search directions in section 1-5DG have been searched.

[0072] Step 8: Search for the signal D1 in section 1-5DG and find the unreachable turnout in the first section outside the signal D1, which is turnout 5#. There is no duplicate element and it is output.

[0073] In summary, the search method for locating an inaccessible turnout in the first section outside the signal provided in this embodiment was used to search signals D1 and D7, respectively. The search results are as follows: the first section outside the signal for signal D1 is section 1-5DG, and the corresponding inaccessible turnout located in the first section outside the signal is turnout 5. The first section outside the signal for signal D7 is section D7G, which is a non-turnout section and does not have an inaccessible turnout located in the first section outside the signal.

[0074] In other aspects, this embodiment also provides a search system for locating an inaccessible turnout in the first section outside a signal, comprising a storage module, an identification module, and a judgment module.

[0075] The storage module is used to obtain and store all signal equipment within a specified station, including signal machines, sections, and switches. The storage module obtains all signal equipment within a specified station based on, for example, topological relationships and data definitions in the national railway station map data.

[0076] The identification module is connected to the storage module and is configured to identify the first section outside the signal machine.

[0077] The judgment module is connected to the storage module and the identification module and is configured to judge whether the turnout is a first section outside the signal machine positioning unreachable turnout.

[0078] The output module is configured to correspond to each signal machine, remove the duplicate first section outside the signal machine positioning unreachable turnouts, and output the names of the first section outside the signal machine positioning unreachable turnouts from near to far based on the topological relationship in the national railway station yard diagram data.

[0079] The present application can automatically count all the first section outside the signal machine positioning unreachable turnouts corresponding to each signal machine by determining the first section outside the signal machine for each signal machine and sequentially searching and judging each signal device in the first section outside the signal machine, thereby further integrating all the first section outside the signal machine normal unreachable turnouts in the platform, having a high degree of automation, not requiring manual modification by signal designers, being conducive to improving efficiency, avoiding omissions and errors in manual configuration, and fully meeting the safety requirements for interlocking data.

[0080] It should be noted that in this document, the terms "comprising", "including", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such a process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0081] It should be noted that the devices and methods disclosed in the embodiments of this document may also be implemented in other ways. The device embodiments described above are merely illustrative. For example, the flowcharts and block diagrams in the accompanying drawings illustrate the possible architectures, functions, and operations of the devices, methods, and computer program products according to the various embodiments of this document. In this regard, each box in the flowchart or block diagram may represent a module, program, or portion of code, wherein the module, program segment, or portion of code contains one or more executable instructions for implementing a specified logical function, and the module, program segment, or portion of code contains one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions marked in the boxes may also occur in an order different from that marked in the accompanying drawings. For example, two consecutive boxes may actually be executed substantially in parallel, or they may sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flowchart, and the combination of boxes in the block diagram and / or flowchart, may be implemented by a dedicated hardware-based system for performing the specified function or action, or may be implemented by a combination of dedicated hardware and computer instructions.

[0082] In addition, the functional modules in the various embodiments of this document may be integrated together to form an independent part, or each module may exist independently, or two or more modules may be integrated to form an independent part.

[0083] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description is not intended to limit the present invention. After reading the above description, various modifications and substitutions of the present invention will become apparent to those skilled in the art. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A method for searching for an inaccessible turnout in the first section outside a signal, characterized in that: include: Obtain all signal equipment in a specified station, wherein the signal equipment includes at least signals, sections, and switches; For each signal, obtain the direction of the signal, and search in the opposite direction of the signal direction starting from the signal to determine the first section outside the signal corresponding to the signal; For each signal, take the signal as the starting point and the opposite direction of the signal direction of the signal as the initial search direction, and search and judge each signal device in turn within the first section outside the signal corresponding to the signal; wherein, when the searched signal device is a turnout, and the current search direction is the convergence direction of the turnout, and the previous signal device is connected to the reverse branch of the turnout, judge that the turnout is an unreachable turnout in the first section outside the signal and record it.

2. The method for searching for an inaccessible turnout in the first section outside a signal according to claim 1, characterized in that: The determining the first section outside the signal corresponding to the signal includes: taking a first section found in a direction opposite to the direction of the signal as the first section outside the signal.

3. The method for searching for an inaccessible turnout in the first section outside a signal according to claim 1, characterized in that: For each signal, when there is no track section in the opposite direction of the signal direction of the signal, it is determined that the signal does not have a corresponding first section outside the signal, and the search for locating the inaccessible turnout in the first section outside the signal is ended.

4. The method for searching for an inaccessible turnout in the first section outside a signal according to claim 1, characterized in that: For each signal, when the first section outside the signal corresponding to the signal is a non-switch section, track or dead end line, the search for locating an inaccessible switch in the first section outside the signal is terminated.

5. The method for searching for an inaccessible turnout in the first section outside a signal according to claim 1, characterized in that: The searching and judging each signal device in sequence in the first section outside the signal corresponding to the signal includes: When the searched signal device is a turnout and the current search direction is the divergent direction of the turnout, the search is continued with the positioning direction and the reverse positioning direction of the turnout as new search directions.

6. The method for searching for an inaccessible turnout in the first section outside a signal according to claim 1, characterized in that: The searching and judging each signal device in sequence in the first section outside the signal corresponding to the signal includes: When the searched signal device is a turnout, and the current search direction is the convergence direction of the turnout, and the previous signal device is connected to the positioning branch of the turnout, the search is continued with the positioning direction of the turnout as the new search direction.

7. The method for searching for an inaccessible turnout in the first section outside a signal according to claim 1, characterized in that: The searching and judging each signal device in sequence in the first section outside the signal corresponding to the signal includes: When the searched signal device is a turnout, and the turnout is an inaccessible turnout located in the first section outside the signal machine, the search is continued with the reverse direction of the turnout as the new search direction.

8. The method for searching for an inaccessible turnout in the first section outside a signal according to claim 1, characterized in that: The searching and judging each signal device in sequence in the first section outside the signal corresponding to the signal includes: When the signal device found is an endpoint, the search for the current search direction ends.

9. The method for searching for an inaccessible turnout in the first section outside a signal according to claim 1, characterized in that: The searching and judging each signal device in sequence in the first section outside the signal corresponding to the signal includes: When the searched signal device does not belong to the first section outside the signal machine, the search in the current search direction is ended.

10. The method for searching for an inaccessible turnout in the first section outside a signal according to any one of claims 8 or 9, characterized in that: For each signal, after completing the search in all search directions, the inaccessible turnouts located in the first section outside all searched signals are output.

11. The method for searching for an inaccessible turnout in the first section outside a signal according to claim 1, characterized in that: Based on the topological relationships and data definitions in the national railway station map data, obtain all signal equipment within a specified station.

12. The method for searching for an inaccessible turnout in the first section outside a signal according to claim 10, characterized in that: Corresponding to each signal machine, all the searched turnouts that are inaccessible in the first section outside the signal machine are deduplicated, and based on the topological relationship in the national railway station map data, the turnout names of the turnouts that are inaccessible in the first section outside each signal machine are output in sequence from near to far.

13. A search system for locating an inaccessible turnout in the first section outside a signal, characterized in that: include: A storage module, configured to obtain and store all signal equipment within a designated station, the signal equipment including signals, sections, and switches; an identification module connected to the storage module and configured to identify a first section outside the signal; the section identification module being configured to obtain a direction of the signal for each signal, and to search in a direction opposite to the direction of the signal, starting from the signal, to determine the first section outside the signal corresponding to the signal; A judgment module, connected to the storage module and the identification module, is used to search and judge the signal equipment in the first section outside the signal; the judgment module is used to search and judge each signal equipment in turn in the first section outside the signal corresponding to each signal, with the signal as the starting point and the opposite direction of the signal direction of the signal as the initial search direction; wherein, when the searched signal equipment is a turnout, the current search direction is the convergence direction of the turnout, and the previous signal equipment is connected to the reverse branch of the turnout, the judgment module judges that the turnout is an inaccessible turnout in the first section outside the signal.

14. The search system for locating an inaccessible turnout in the first section outside a signal according to claim 13, characterized in that: The storage module is used to obtain all signal equipment in a specified station based on the topological relationship and data definition in the national railway station map data.

15. The search system for locating an inaccessible turnout in the first section outside a signal according to claim 14, characterized in that: It also includes an output module, which is used to correspond to each signal machine, deduplicate all the searched turnouts that are inaccessible in the first section outside the signal machine, and output the turnout names of the turnouts that are inaccessible in the first section outside each signal machine in sequence from near to far based on the topological relationship in the national railway station map data.

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