Method and device for determining static speed limit of line
By automatically obtaining and querying the speed limit information of the train line, determining the speed limit processing type and calculating the static speed limit of the line, the accuracy problems existing in manual design are solved and the safety of train operations is improved.
Patent Information
- Application Number
- CN202510105008.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2045-01-23
AI Technical Summary
In the prior art, the design of static speed limits of train lines mainly relies on manual labor, which is prone to affect the safety of train operations due to human errors and lacks effective accuracy guarantees.
By obtaining the kilometer-level to be processed for speed limit information corresponding to the speed limit information to be processed, query the relevant track segment information, determine the speed limit processing type, and calculate the line static speed limit information of each track segment to be processed based on different types and section information.
It improves the accuracy of static speed limit information on train lines, reduces the impact of manual errors, and enhances the safety of train operations.
Smart Images

Figure CN119527401B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of rail transit technology, and in particular to a method for determining a static speed limit on a line. The present invention also relates to an apparatus for determining a static speed limit on a line, a computing device, a computer-readable storage medium, and a computer program product. Background Art
[0002] The determination of the static speed limit of a train line is crucial in the field of rail transit, which directly affects the safety of train operations on the train line. In current practical applications, the static speed limit of a train line is usually designed manually, but the manual design of the line may cause errors in the static speed limit information of the train line due to human factors, thereby affecting the safe operation of the train. Therefore, a method is urgently needed to improve the accuracy of the determination of the static speed limit of a train line. Summary of the invention
[0003] In view of this, an embodiment of this specification provides a method for determining a static speed limit of a line. One or more embodiments of this specification also relate to a device for determining a static speed limit of a line, a computing device, a computer-readable storage medium, and a computer program product to solve the technical defects existing in the prior art.
[0004] According to a first aspect of an embodiment of this specification, a method for determining a static speed limit of a line is provided, comprising:
[0005] Obtain the speed limit kilometer mark interval to be processed corresponding to the speed limit information to be processed;
[0006] According to the speed limit kilometer mark interval to be processed, query the track section information to be processed corresponding to the speed limit information to be processed;
[0007] Determining a speed limit processing type of the speed limit information to be processed according to the track section information to be processed;
[0008] According to the speed limit processing type, the track section information to be processed, the speed limit information to be processed and the speed limit kilometer mark interval to be processed, the line static speed limit information of each track section to be processed in the track section information to be processed is determined.
[0009] According to a second aspect of an embodiment of this specification, a device for determining a static speed limit of a line is provided, comprising:
[0010] An acquisition module is configured to acquire a speed limit kilometer mark interval to be processed corresponding to the speed limit information to be processed;
[0011] A query module is configured to query the track section information to be processed corresponding to the speed limit information to be processed according to the speed limit kilometer mark section to be processed;
[0012] A type determination module is configured to determine a speed limit processing type of the speed limit information to be processed according to the track section information to be processed;
[0013] The information determination module is configured to determine the line static speed limit information of each track section to be processed in the track section information to be processed according to the speed limit processing type, the track section information to be processed, the speed limit information to be processed and the speed limit kilometer mark interval to be processed.
[0014] According to a third aspect of an embodiment of this specification, a computing device is provided, including:
[0015] Memory and processor;
[0016] The memory is used to store computer programs / instructions, and the processor is used to execute the computer programs / instructions. When the computer programs / instructions are executed by the processor, the steps of the above-mentioned method for determining the static speed limit of the line are implemented.
[0017] According to a fourth aspect of the embodiments of this specification, a computer-readable storage medium is provided, which stores a computer program / instruction, and when the computer program / instruction is executed by a processor, the steps of the above-mentioned line static speed limit determination method are implemented.
[0018] According to a fifth aspect of the embodiments of this specification, a computer program product is provided, including a computer program / instruction, which implements the steps of the above-mentioned line static speed limit determination method when executed by a processor.
[0019] An embodiment of this specification realizes that by obtaining the to-be-processed speed limit kilometer mark interval corresponding to the to-be-processed speed limit information, querying and obtaining the to-be-processed track section information corresponding to the to-be-processed speed limit information, and determining the speed limit processing type for processing the to-be-processed speed limit information according to the to-be-processed track section information, the line static speed limit information of each to-be-processed track section under different speed limit processing types is determined according to different speed limit processing types of the to-be-processed speed limit information, the to-be-processed track section information, the to-be-processed speed limit information and the to-be-processed speed limit kilometer mark interval. The speed limit processing type of the to-be-processed speed limit information is divided, the to-be-processed speed limit kilometer mark interval data is used as the basic data, and different line static speed limit information is determined based on different speed limit processing types, thereby improving the accuracy of determining the line static speed limit information. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 is a flow chart of a method for determining a static speed limit of a line provided by an embodiment of this specification;
[0021] Figure 2ais a schematic diagram of determining line static speed limit information of the first same track section processing type provided by an embodiment of this specification;
[0022] Figure 2b is a schematic diagram of determining line static speed limit information of a second track section processing type provided by an embodiment of this specification;
[0023] Figure 2c is a schematic diagram of determining line static speed limit information of the third same track section processing type provided by an embodiment of this specification;
[0024] Figure 2d is a schematic diagram of determining line static speed limit information of the fourth same track section processing type provided by an embodiment of this specification;
[0025] Figure 3 It is a schematic diagram of determining static speed limit information of a line in a cross-track section processing type provided by an embodiment of this specification;
[0026] Figure 4 is a schematic diagram of determining line static speed limit information of another cross-track section processing type provided by an embodiment of this specification;
[0027] Figure 5 It is a structural schematic diagram of a device for determining a static speed limit of a line provided by an embodiment of this specification;
[0028] Figure 6 It is a structural block diagram of a computing device provided by an embodiment of this specification. DETAILED DESCRIPTION
[0029] Many specific details are described in the following description to facilitate a full understanding of this specification. However, this specification can be implemented in many other ways than those described herein, and those skilled in the art can make similar generalizations without violating the connotation of this specification, so this specification is not limited to the specific implementation disclosed below.
[0030] The terms used in one or more embodiments of this specification are only for the purpose of describing specific embodiments, and are not intended to limit one or more embodiments of this specification. The singular forms of "a", "said" and "the" used in one or more embodiments of this specification and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used in one or more embodiments of this specification refers to and includes any or all possible combinations of one or more associated listed items.
[0031] It should be understood that although the terms first, second, etc. may be used to describe various information in one or more embodiments of this specification, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of one or more embodiments of this specification, the first may also be referred to as the second, and similarly, the second may also be referred to as the first. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".
[0032] In addition, it should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in one or more embodiments of this specification are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with the relevant laws, regulations and standards of the relevant countries and regions, and provide corresponding operation entrances for users to choose to authorize or refuse.
[0033] First, the terms involved in one or more embodiments of this specification are explained.
[0034] Track section: Each track section contains axle counters or turnouts at both ends. Each axle counter or turnout has a unique kilometer mark. The section between the two ends is called a track section.
[0035] In this specification, a method for determining a static speed limit of a line is provided. This specification also relates to an apparatus for determining a static speed limit of a line, a computing device, a computer-readable storage medium, and a computer program product, which are described in detail one by one in the following embodiments.
[0036] See also Figure 1 , Figure 1 A flowchart of a method for determining a static speed limit of a line provided according to an embodiment of this specification is shown, which specifically includes the following steps:
[0037] Step 102: Obtain the speed limit kilometer mark interval to be processed corresponding to the speed limit information to be processed.
[0038] Among them, the speed limit information to be processed refers to the speed limit information that needs to be processed, that is, the maximum allowed speed that needs to be configured. The speed limit kilometer mark interval to be processed is specifically the interval from the starting kilometer mark to the ending kilometer mark corresponding to the speed limit information to be processed. The speed limit kilometer mark interval to be processed specifically includes the first speed limit kilometer mark and the second speed limit kilometer mark. The first speed limit kilometer mark is specifically the starting kilometer mark of the speed limit information to be processed, and the second speed limit kilometer mark is specifically the ending kilometer mark of the speed limit information to be processed. Therefore, the first speed limit kilometer mark is numerically smaller than the second speed limit kilometer mark.
[0039] In actual application, the user can input the speed limit information to be processed and the speed limit kilometer mark interval to be processed of the speed limit information to be processed through the client. The speed limit information to be processed can be the speed limit information of any line project.
[0040] Step 104: According to the speed limit kilometer mark section to be processed, query the track section information to be processed corresponding to the speed limit information to be processed.
[0041] After obtaining the speed limit information to be processed and the speed limit kilometer mark interval to be processed, the track section where the first speed limit kilometer mark and the second speed limit kilometer mark are located can be queried according to the speed limit kilometer mark interval to be processed, and the corresponding track section information can be obtained. The track section information to be processed refers to the track section information of each track section covered by the speed limit information to be processed.
[0042] In a specific implementation manner provided in this specification, querying the track section information to be processed corresponding to the speed limit information to be processed according to the speed limit kilometer mark section to be processed includes:
[0043] According to the speed limit kilometer mark interval to be processed, the starting track segment and the ending track segment of the speed limit information to be processed are screened, and the starting track segment information of the starting track segment and the ending track segment information of the ending track segment are obtained;
[0044] According to the starting track segment and the ending track segment, querying the intermediate track segment set corresponding to the to-be-processed speed limit information and the intermediate track segment information corresponding to each intermediate track segment in the intermediate track segment set;
[0045] The starting track segment information, the ending track segment information and the intermediate track segment information are determined as the track segment information to be processed corresponding to the speed limit information to be processed.
[0046] The starting track section refers to the track section where the first speed limit kilometer mark of the speed limit information to be processed is located; the ending track section refers to the track section where the second speed limit kilometer mark of the speed limit information to be processed is located. The starting track section information is the track section information of the starting track section, and the starting track section information includes but is not limited to the starting section identifier and the preset starting section speed of the starting track section. The ending track section information is the track section information of the ending track section, and the ending track section information includes but is not limited to the ending section identifier and the preset ending section speed of the ending track section.
[0047] The intermediate track segment is the track segment between the start track segment and the end track segment. The intermediate track segment set refers to a set consisting of intermediate track segments. The intermediate track segment set can be an empty set. In this case, the start track segment and the end track segment are the same track segment, or the start track segment and the end track segment are adjacent.
[0048] After obtaining the speed limit kilometer mark interval to be processed of the speed limit information to be processed, the starting track segment and the ending track segment of the speed limit information to be processed are screened according to the speed limit kilometer mark interval to be processed, and the starting track segment information of the starting track segment and the ending track segment information of the ending track segment are obtained. Furthermore, the specific implementation method of screening the starting track segment and the ending track segment according to the speed limit kilometer mark interval to be processed is as follows:
[0049] In a specific implementation provided in this specification, the to-be-processed speed limit kilometer mark interval includes a first speed limit kilometer mark and a second speed limit kilometer mark, and the first speed limit kilometer mark is smaller than the second speed limit kilometer mark;
[0050] According to the speed limit kilometer mark interval to be processed, screening the starting track section and the ending track section of the speed limit information to be processed includes:
[0051] Selecting the leading section kilometer mark that is less than the first speed limit kilometer mark and the trailing section kilometer mark that is greater than the second speed limit kilometer mark;
[0052] The track section to which the kilometer mark of the head end section belongs is determined as the starting track section of the speed limit information to be processed, and the track section to which the kilometer mark of the tail end section belongs is determined as the ending track section of the speed limit information to be processed.
[0053] Specifically, among each kilometer mark, the head section kilometer mark that is less than the first speed limit kilometer mark is screened, and the track section to which the screened head section kilometer mark belongs is determined as the starting track section of the speed limit information to be processed; the tail section kilometer mark that is greater than the second speed limit kilometer mark is screened, and the track section to which the screened tail section kilometer mark belongs is determined as the ending track section of the speed limit information to be processed.
[0054] After filtering and obtaining the starting track segment and the ending track segment of the speed limit information to be processed, the intermediate track segment set corresponding to the speed limit information to be processed and the intermediate track segment information corresponding to each intermediate track segment in the intermediate track segment set can be queried according to the starting track segment and the ending track segment. The specific implementation method is as follows:
[0055] In a specific implementation provided in this specification, according to the starting track segment and the ending track segment, querying the intermediate track segment set corresponding to the to-be-processed speed limit information and the intermediate track segment information corresponding to each intermediate track segment in the intermediate track segment set includes:
[0056] Determine the start segment identifier of the start track segment in the start track segment information, determine the end segment identifier of the end track segment in the end track segment information, and obtain the track segment topological relationship;
[0057] According to the start segment identifier and the end segment identifier, querying the track segment between the start track segment and the end track segment in the track segment topological relationship;
[0058] Determine the track segment between the starting track segment and the ending track segment as the intermediate track segment corresponding to the speed limit information to be processed, and obtain an intermediate track segment set;
[0059] The intermediate track segment information of each intermediate track segment in the intermediate track segment set is obtained.
[0060] Specifically, after obtaining the start track segment information of the start track segment, the start segment identifier of the start track segment is determined in the start track segment information, and after obtaining the end track segment information of the end track segment, the end segment identifier of the end track segment is determined in the end track segment information. The track segment topology relationship is obtained, and according to the track segment topology relationship, the track identifier between the start segment identifier and the end segment identifier is queried, and the track segment corresponding to the queried track identifier is determined as the middle track segment between the start track segment and the end track segment, and the middle track segment set and the middle track segment information are obtained.
[0061] Further, after the start track segment information, the end track segment information and the intermediate track segment information are obtained, the start track segment information, the end track segment information and the intermediate track segment information are determined as the track segment information to be processed corresponding to the speed limit information to be processed. At the same time, each intermediate track segment in the set of the start track segment, the end track segment and the intermediate track segment is a track segment to be processed corresponding to the speed limit information to be processed.
[0062] In one embodiment provided in the present specification, the starting track segment and the ending track segment corresponding to the speed limit information to be processed are screened by the speed limit kilometer mark interval to be processed of the speed limit information to be processed, and further based on the starting track segment and the ending track segment, the set of intermediate track segments corresponding to the speed limit information to be processed is queried.
[0063] Step 106: Determine the speed limit processing type of the speed limit information to be processed according to the track section information to be processed.
[0064] The track segment information to be processed of the speed limit information to be processed is obtained, namely, the starting track segment information, the ending track segment information and the intermediate track segment information. In practical applications, a section of speed limit information may be within one track segment or may span multiple track segments. When the speed limit information is only within one track segment, the track segment corresponding to the speed limit information is also one, that is, the speed limit information does not have an intermediate track segment, and the starting track segment and the ending track segment are the same track segment; when the speed limit information spans multiple track segments, the speed limit information may correspond to a starting track segment, an ending track segment and an intermediate track segment set, or there may be no intermediate track segment, but it corresponds to a starting track segment and an ending track segment. Based on this, in order to improve the accuracy of subsequent processing of the speed limit information to be processed, the processing type of the speed limit information to be processed can be divided according to the different track segments corresponding to the speed limit information to be processed. Therefore, the speed limit processing type is the type of processing the speed limit information to be processed. The speed limit processing type specifically includes the same track segment processing type or the cross-track segment processing type. The same track section processing type refers to the processing type that needs to be used when the speed limit information to be processed is located in the same track section; the cross-track section processing type refers to the processing type that needs to be used when the speed limit information to be processed is located in multiple different track sections.
[0065] In a specific implementation manner provided in this specification, determining the speed limit processing type of the speed limit information to be processed according to the track section information to be processed includes:
[0066] Determine a start segment identifier of a start track segment and an end segment identifier of an end track segment in the track segment information to be processed;
[0067] When the start section identifier is the same as the end section identifier, determining that the speed limit processing type of the speed limit information to be processed is a same track section processing type;
[0068] When the start segment identifier is different from the end segment identifier, it is determined that the speed limit processing type of the speed limit information to be processed is a cross-track segment processing type.
[0069] Specifically, the speed limit processing type of the speed limit information to be processed can be determined by judging whether the starting track segment and the ending track segment of the speed limit information to be processed are the same track segment. Determine the starting segment identifier of the starting track segment and the ending segment identifier of the ending track segment. If the starting segment identifier is the same as the ending segment identifier, it means that the starting track segment and the ending track segment are the same track segment. At this time, the speed limit processing type of the speed limit information to be processed is determined to be the same track segment processing type. If the starting segment identifier is different from the ending segment identifier, it means that the starting track segment and the ending track segment are different track segments. At this time, the speed limit processing type of the speed limit information to be processed is determined to be the cross-track segment processing type.
[0070] In an embodiment provided in this specification, the starting segment identifier of the starting track segment and the ending segment identifier of the ending track segment are used to determine whether the starting track segment and the ending track segment are the same track segment, and further determine the speed limit processing type of the speed limit information to be processed.
[0071] Step 108: Determine the line static speed limit information of each track section to be processed in the track section information to be processed according to the speed limit processing type, the track section information to be processed, the speed limit information to be processed and the speed limit kilometer mark interval to be processed.
[0072] After determining the speed limit processing type of the speed limit information to be processed, the line static speed limit information of each track section to be processed can be determined according to the speed limit processing type of the speed limit information to be processed, the track section information to be processed, the speed limit information to be processed and the speed limit kilometer mark interval to be processed. The line static speed limit information is the speed limit information corresponding to each track section to be processed, that is, the maximum allowed speed corresponding to each track section to be processed.
[0073] In a specific implementation provided in this specification, according to the speed limit processing type, the track section information to be processed, the speed limit information to be processed and the speed limit kilometer mark interval to be processed, the line static speed limit information of each track section to be processed in the track section information to be processed is determined, including:
[0074] In the case where the speed limit processing type is the same track section processing type, determining the starting section head end kilometer mark and the starting section tail end kilometer mark of the starting track section in the track section information to be processed;
[0075] Determining a first speed limit kilometer mark and a second speed limit kilometer mark in the to-be-processed speed limit kilometer mark interval, wherein the first speed limit kilometer mark is smaller than the second speed limit kilometer mark;
[0076] The line static speed limit information of the starting track section is determined according to the kilometer mark at the beginning of the starting section, the kilometer mark at the end of the starting section, the first speed limit kilometer mark, the second speed limit kilometer mark and the speed limit information to be processed.
[0077] In practical applications, if the speed limit information to be processed is located in the same track segment, the track segment is the starting track segment or the ending track segment. In this case, the starting track segment of the speed limit information to be processed is also the ending track segment.
[0078] Among them, the kilometer mark at the beginning of the starting section refers to the kilometer mark at the beginning of the starting track section; the kilometer mark at the end of the starting section refers to the kilometer mark at the end of the starting track section.
[0079] Since the speed limit information to be processed is located in the same track section, that is, in the starting track section or the ending track section, the speed limit information to be processed may be located on the entire track section of the starting track section or the ending track section, that is, the range of the speed limit information to be processed is equal to the range of the starting track section or the ending track section, or the speed limit information to be processed may be located on a partial track section of the starting track section or the ending track section, that is, the range of the speed limit information to be processed is smaller than the range of the starting track section or the ending track section. Therefore, the starting section head end kilometer mark and the starting section tail end kilometer mark of the starting track section (or the ending track section) can be determined, and the speed limit information to be processed and the starting track section can be processed in combination with the first speed limit kilometer mark and the second speed limit kilometer mark of the speed limit information to be processed to determine the line static speed limit information of the starting track section. The specific implementation method is as follows:
[0080] In a specific implementation provided in this specification, according to the kilometer mark at the head end of the starting section, the kilometer mark at the tail end of the starting section, the first speed limit kilometer mark, the second speed limit kilometer mark and the speed limit information to be processed, determining the line static speed limit information of the starting track section includes:
[0081] Determine the starting section range of the starting track section according to the kilometer mark at the head end of the starting section and the kilometer mark at the tail end of the starting section;
[0082] Determining a speed limit information range of the speed limit information to be processed according to the first speed limit kilometer mark and the second speed limit kilometer mark;
[0083] In a case where the starting section range is equal to the speed limit information range, determining the speed limit information to be processed as the line static speed limit information of the starting track section;
[0084] When the starting section range is larger than the speed limit information range, a preset starting section speed of the starting track section is obtained, and the line static speed limit information of the starting track section is determined based on the preset starting section speed and the speed limit information to be processed.
[0085] Among them, the starting section range refers to the section range of the starting track section. The speed limit information range refers to the coverage of the speed limit information to be processed. The preset starting section speed refers to the default speed of the starting track section. The preset starting section speed can be determined according to the position information of the starting track section. For example, if the position of the starting track section is specifically a line section, the preset starting section speed is the maximum speed that the line can run. If the position of the starting track section is the forward position of the turnout, the preset starting section speed is the maximum speed that the line can run. If the position of the starting track section is the lateral position of the turnout, the preset starting section speed is the lateral speed limit of the turnout, such as 45km / h for turnout No. 12 and 35km / h for turnout No. 9. If the position of the starting track section is the platform position, the preset starting section speed is the platform speed, for example, the platform speed is 80km / h.
[0086] Specifically, the starting section range of the starting track section is determined according to the starting section head end kilometer mark and the starting section tail end kilometer mark of the starting track section, and the speed limit information range of the speed limit information to be processed is determined according to the first speed limit kilometer mark and the second speed limit kilometer mark. If the starting section range is equal to the speed limit information range, the speed limit information to be processed is directly determined as the line static speed limit information of the starting track section.
[0087] See also Figure 2a , Figure 2a FIG. 1 is a schematic diagram showing a first type of track section processing type for determining line static speed limit information according to an embodiment of the present specification. Figure 2a As shown, the kilometer marks increase from left to right. Figure 2a The dashed box in the middle is the range covered by the speed limit information to be processed, and the track section between the two axle counters is the starting track section of the speed limit information to be processed. The starting section head kilometer mark and the starting section tail kilometer mark of the starting track section, as well as the first speed limit kilometer mark and the second speed limit kilometer mark of the speed limit information to be processed are all as shown in the figure. Figure 2a As shown. Figure 2a It can be seen that the first speed limit kilometer mark of the speed limit information to be processed is equal to the kilometer mark at the head end of the starting track section, and the second speed limit kilometer mark of the speed limit information to be processed is equal to the kilometer mark at the tail end of the starting track section, that is, the starting section range is equal to the speed limit information range, and it is determined that the speed limit information to be processed is the line static speed limit information of the starting track section.
[0088] Based on this, in a specific implementation manner provided in this specification, the starting section range is equal to the speed limit information range, including:
[0089] The first speed limit kilometer mark is equal to the kilometer mark at the beginning of the starting section, and the second speed limit kilometer mark is equal to the kilometer mark at the end of the starting section.
[0090] Through the first speed limit kilometer mark and the second speed limit kilometer mark of the speed limit information to be processed, as well as the kilometer mark at the head end of the starting section and the kilometer mark at the tail end of the starting section of the starting track section, it is determined whether the starting section range is equal to the speed limit information range; if the first speed limit kilometer mark of the speed limit information to be processed is equal to the kilometer mark at the head end of the starting section of the starting track section, and the second speed limit kilometer mark of the speed limit information to be processed is equal to the kilometer mark at the tail end of the starting section of the starting track section, then it means that the starting section range is equal to the speed limit information range.
[0091] Correspondingly, if the first speed limit kilometer mark of the speed limit information to be processed is greater than the kilometer mark at the head end of the starting track section, or the second speed limit kilometer mark of the speed limit information to be processed is less than the kilometer mark at the tail end of the starting track section, it means that the starting section range is greater than the speed limit information range.
[0092] Based on this, in a specific implementation manner provided in this specification, the starting section range is larger than the speed limit information range, including:
[0093] The first speed limit kilometer mark is equal to the kilometer mark at the beginning of the starting section, and the second speed limit kilometer mark is less than the kilometer mark at the end of the starting section; or
[0094] The first speed limit kilometer mark is greater than the kilometer mark at the beginning of the starting section, and the second speed limit kilometer mark is equal to the kilometer mark at the end of the starting section; or
[0095] The first speed limit kilometer mark is greater than the kilometer mark at the beginning of the starting section, and the second speed limit kilometer mark is less than the kilometer mark at the end of the starting section.
[0096] Furthermore, if the starting section range is larger than the speed limit information range, it means that there may be two different speed limit information in the starting track section. At this time, the preset starting section speed of the starting track section is obtained, and the line static speed limit information of the starting track section is determined according to the preset starting section speed and the speed limit information to be processed. The specific implementation method is as follows:
[0097] In a specific implementation provided in this specification, determining the line static speed limit information of the starting track section based on the preset starting section speed and the to-be-processed speed limit information includes:
[0098] determining a non-speed limit information range in the starting track section according to the speed limit information range;
[0099] The static speed limit information of the line within the speed limit information range is determined according to the speed limit information to be processed, and the static speed limit information of the line within the non-speed limit information range is determined according to the preset starting section speed.
[0100] The non-speed limit information range refers to the remaining range in the starting track section except the speed limit information range. The non-speed limit information range can be specifically the range between the kilometer mark at the beginning of the starting section and the first speed limit kilometer mark, or the range between the second speed limit kilometer mark and the kilometer mark at the end of the starting section.
[0101] Specifically, when it is determined that the starting section range is larger than the speed limit information range, it means that the starting track section includes a speed limit information range and a non-speed limit information range. At this time, the speed limit information range and the non-speed limit information range can be processed respectively according to the preset starting section speed of the starting track section and the speed limit information to be processed. Specifically, the speed limit information to be processed can be directly determined as the line static speed limit information of the speed limit information range. As mentioned above, the non-speed limit information range can specifically be the range between the kilometer mark at the head end of the starting section and the first speed limit kilometer mark, or it can be the range between the second speed limit kilometer mark and the kilometer mark at the tail end of the starting section. Therefore, it is also necessary to process the non-speed limit information range according to its specific circumstances.
[0102] Based on this, in a specific implementation manner provided in this specification, determining the line static speed limit information of the non-speed limit information range according to the preset starting section speed includes:
[0103] In the case where there is no other speed limit information in the non-speed limit information range, determining the preset starting section speed as the line static speed limit information in the non-speed limit information range;
[0104] When other speed limit information exists in the non-speed limit information range, and the non-speed limit information range is determined according to the second speed limit kilometer mark and the end kilometer mark of the starting section, the adjacent speed limit kilometer mark of the speed limit information to be processed is determined, and the adjacent non-speed limit information range is determined according to the second speed limit kilometer mark and the adjacent speed limit kilometer mark, and the preset starting section speed is determined as the line static speed limit information of the adjacent non-speed limit information range.
[0105] Among them, other speed limit information refers to any speed limit information other than the speed limit information to be processed. Adjacent speed limit kilometer mark refers to the kilometer mark of the speed limit information adjacent to the speed limit information to be processed, specifically the starting kilometer mark of the adjacent speed limit information. Adjacent non-speed limit information range refers to the range between the second speed limit kilometer mark and the adjacent speed limit kilometer mark (i.e. the starting kilometer mark of the adjacent speed limit information).
[0106] Specifically, after determining the non-speed limit information range in the starting track section, it is necessary to determine whether there is other speed limit information in the non-speed limit information range. If not, the preset starting section speed of the starting track section can be determined as the line static speed limit information of the non-speed limit information range. If it exists, and the non-speed limit information range is the range between the second speed limit kilometer mark and the kilometer mark at the end of the starting section, then the adjacent non-speed limit information range between the second speed limit kilometer mark and the adjacent speed limit kilometer mark (i.e., the starting kilometer mark of the adjacent speed limit information) is determined, and the line static speed limit information of the adjacent non-speed limit information range is determined as the preset starting section speed. If it exists, and the non-speed limit information range is the range between the kilometer mark at the head end of the starting section and the first speed limit kilometer mark, then the non-speed limit information range is not processed.
[0107] See also Figure 2b , Figure 2b FIG. 2 is a schematic diagram showing a second type of track section processing type for determining line static speed limit information according to an embodiment of the present specification. Figure 2b As shown, the kilometer marks increase from left to right. Figure 2b The dashed box in the middle is the range covered by the speed limit information to be processed, and the track section between the two axle counters is the starting track section of the speed limit information to be processed. The starting section head kilometer mark and the starting section tail kilometer mark of the starting track section, as well as the first speed limit kilometer mark and the second speed limit kilometer mark of the speed limit information to be processed are all as shown in the figure. Figure 2b As shown. Figure 2b It can be seen that the first speed limit kilometer mark of the speed limit information to be processed is equal to the kilometer mark at the beginning of the starting track section, and the second speed limit kilometer mark of the speed limit information to be processed is less than the kilometer mark at the end of the starting track section, that is, the starting section range is larger than the speed limit information range. Based on this, it can be determined that the range between the kilometer mark at the beginning of the starting section and the second speed limit kilometer mark is the speed limit information range, and the range between the second speed limit information and the kilometer mark at the end of the starting section is the non-speed limit information range. The line static speed limit information of the speed limit information range is determined as the speed limit information to be processed, and it is determined whether there is other speed limit information in the non-speed limit information range. If not, the preset starting section speed of the starting track section can be determined as the line static speed limit information of the non-speed limit information range. If it exists, the adjacent non-speed limit information range between the second speed limit kilometer mark and the adjacent speed limit kilometer mark (that is, the starting kilometer mark of the adjacent speed limit information) is determined, and the line static speed limit information of the adjacent non-speed limit information range is determined as the preset starting section speed.
[0108] See also Figure 2c , Figure 2c FIG. 2 is a schematic diagram showing a third type of track section processing type for determining line static speed limit information according to an embodiment of this specification. Figure 2c As shown, the kilometer marks increase from left to right. Figure 2cThe dashed box in the middle is the range covered by the speed limit information to be processed, and the track section between the two axle counters is the starting track section of the speed limit information to be processed. The starting section head kilometer mark and the starting section tail kilometer mark of the starting track section, as well as the first speed limit kilometer mark and the second speed limit kilometer mark of the speed limit information to be processed are all as shown in the figure. Figure 2c As shown. Figure 2c It can be known that the first speed limit kilometer mark of the speed limit information to be processed is greater than the kilometer mark at the head end of the starting section of the starting track section, and the second speed limit kilometer mark of the speed limit information to be processed is equal to the kilometer mark at the tail end of the starting section of the starting track section, that is, the starting section range is greater than the speed limit information range. Based on this, it can be determined that the range between the first speed limit kilometer mark and the kilometer mark at the tail end of the starting section is the speed limit information range, and the range between the kilometer mark at the head end of the starting section and the first speed limit kilometer mark is the non-speed limit information range. The line static speed limit information of the speed limit information range is determined as the speed limit information to be processed, and it is determined whether there is other speed limit information in the non-speed limit information range. If not, the preset starting section speed of the starting track section can be determined as the line static speed limit information of the non-speed limit information range. If it exists, the non-speed limit information range is not processed.
[0109] See also Figure 2d , Figure 2d FIG. 2 is a schematic diagram showing a fourth type of track section processing type for determining line static speed limit information according to an embodiment of this specification. Figure 2d As shown, the first speed limit kilometer mark of the speed limit information to be processed is greater than the kilometer mark at the head end of the starting section of the starting track section, and the second speed limit kilometer mark of the speed limit information to be processed is less than the kilometer mark at the tail end of the starting section of the starting track section, that is, the starting section range is greater than the speed limit information range. Based on this, it can be determined that the range between the first speed limit kilometer mark and the second speed limit kilometer mark is the speed limit information range, the range between the kilometer mark at the head end of the starting section and the first speed limit kilometer mark, and the range between the second speed limit kilometer mark and the kilometer mark at the tail end of the starting section are the non-speed limit information range. The line static speed limit information within the speed limit information range is determined as the speed limit information to be processed, and it is determined whether there is other speed limit information within the non-speed limit information range. If not, the preset starting section speed of the starting track section can be determined as the line static speed limit information within the non-speed limit information range. If it exists, for the non-speed limit information range between the first kilometer mark of the starting section and the first speed limit kilometer mark, the non-speed limit information range will not be processed; for the non-speed limit information range between the second speed limit kilometer mark and the last kilometer mark of the starting section, the adjacent non-speed limit information range between the second speed limit kilometer mark and the adjacent speed limit kilometer mark (i.e. the starting kilometer mark of the adjacent speed limit information) will be determined, and the line static speed limit information of the adjacent non-speed limit information range will be determined as the preset starting section speed.
[0110] In one embodiment provided in the present specification, when the speed limit processing type of the speed limit information to be processed is the same track segment processing type, the size between the range of the starting track segment and the range of the speed limit information to be processed is determined, and the specific processing method of the speed limit information range and the non-speed limit information range in the starting track segment is determined according to the size of the range, so as to accurately determine the speed limit information of the starting track segment.
[0111] The following is a specific explanation of the implementation method of determining the static speed limit information of the line when the speed limit processing type is the cross-track section processing type.
[0112] In a specific implementation provided in this specification, according to the speed limit processing type, the track section information to be processed, the speed limit information to be processed and the speed limit kilometer mark interval to be processed, the line static speed limit information of each track section to be processed in the track section information to be processed is determined, including:
[0113] In the case where the speed limit processing type is a cross-track section processing type, determining a starting section head end kilometer mark of a starting track section and an ending section tail end kilometer mark of an ending track section in the track section information to be processed;
[0114] Determining a first speed limit kilometer mark and a second speed limit kilometer mark in the to-be-processed speed limit kilometer mark interval, wherein the first speed limit kilometer mark is smaller than the second speed limit kilometer mark;
[0115] According to the kilometer mark at the head end of the starting section, the kilometer mark at the tail end of the ending section, the first speed limit kilometer mark, the second speed limit kilometer mark and the speed limit information to be processed, the line static speed limit information of the starting track section, the ending track section and each intermediate track section is determined.
[0116] In practical applications, if the speed limit information to be processed is located in multiple different track sections, the track section at least includes a starting track section and an ending track section, wherein the kilometer mark at the end of the ending section refers to the kilometer mark at the end of the ending track section.
[0117] Since the speed limit information to be processed is located at least in the starting track section and the ending track section, the speed limit information to be processed may be located on the entire track section from the starting track section to the ending track section, or the speed limit information to be processed may be located at least on a part of the track section of the starting track section or the ending track section. Therefore, when the speed limit processing type is a cross-track section processing type, the kilometer mark at the head end of the starting track section and the kilometer mark at the tail end of the ending track section can be determined, and combined with the first speed limit kilometer mark and the second speed limit kilometer mark of the speed limit information to be processed, as well as the speed limit information to be processed, the starting track section and the ending track section are processed in focus to determine the line static speed limit information of the starting track section, the ending track section and each intermediate track section. The specific implementation method is as follows:
[0118] In a specific implementation provided in this specification, according to the kilometer mark at the head end of the starting section, the kilometer mark at the tail end of the ending section, the first speed limit kilometer mark, the second speed limit kilometer mark and the speed limit information to be processed, the line static speed limit information of the starting track section, the ending track section and each intermediate track section is determined, including:
[0119] Determine the line static speed limit information of the starting track section according to the first speed limit kilometer mark, the starting section head end kilometer mark and the speed limit information to be processed;
[0120] Determine the line static speed limit information of the ending track section according to the second speed limit kilometer mark, the ending section tail kilometer mark and the speed limit information to be processed;
[0121] The speed limit information to be processed is determined as the line static speed limit information of each intermediate track section.
[0122] When the speed limit processing type is a cross-track segment processing type, the processing can be mainly performed on the starting track segment and the ending track segment. Since the intermediate track segments are all located between the starting track segment and the ending track segment, the multiple track segments to be processed where the speed limit information to be processed is located can be divided into three parts, namely the starting track segment, the ending track segment and the intermediate track segment set.
[0123] Specifically, the static speed limit information of the starting track section is determined by obtaining the first speed limit kilometer mark, the kilometer mark at the head end of the starting section and the speed limit information to be processed; the static speed limit information of the ending track section is determined by obtaining the second speed limit kilometer mark, the kilometer mark at the tail end of the ending section and the speed limit information to be processed.
[0124] Furthermore, if there is no intermediate track segment set for the speed limit information to be processed, only the starting track segment and the ending track segment need to be processed; if there is an intermediate track segment set for the speed limit information to be processed, since the intermediate track segment sets are all located between the starting track segment and the ending track segment, the line static speed limit information of the intermediate track segment set can be directly determined as the speed limit information to be processed.
[0125] The following explains the line static speed limit information for determining the starting track section and the line static speed limit information for the ending track section respectively.
[0126] In a specific implementation manner provided in this specification, determining the line static speed limit information of the starting track section according to the first speed limit kilometer mark, the starting section head end kilometer mark and the speed limit information to be processed includes:
[0127] When the first speed limit kilometer mark is equal to the kilometer mark at the head end of the starting section, the speed limit information to be processed is determined as the line static speed limit information of the starting track section;
[0128] When the first speed limit kilometer mark is not equal to the kilometer mark at the head end of the starting section and no other speed limit information exists in the starting track section, the preset starting section speed of the starting track section is obtained, and the line static speed limit information of the starting track section is determined based on the preset starting section speed and the speed limit information to be processed.
[0129] Similar to the above speed limit processing type for the same track section processing type, if the first speed limit kilometer mark is equal to the kilometer mark at the head end of the starting section, the speed limit information to be processed is determined as the line static speed limit information of the starting track section.
[0130] See also Figure 3 , Figure 3 FIG. 1 is a schematic diagram showing a cross-track section processing type for determining line static speed limit information according to an embodiment of the present specification. Figure 3 As shown, the first speed limit kilometer mark is equal to the kilometer mark at the head end of the starting section, that is, the speed limit information to be processed covers the entire starting track section. Therefore, the speed limit information to be processed can be directly determined as the line static speed limit information of the starting track section.
[0131] If the first speed limit kilometer mark is not equal to the kilometer mark at the head end of the starting section, and there is no other speed limit information in the starting track section, then the preset starting section speed of the starting track section is obtained, and based on the preset starting section speed and the speed limit information to be processed, the line static speed limit information of the starting track section is determined.
[0132] Further, in a specific implementation provided in this specification, determining the line static speed limit information of the starting track section based on the preset starting section speed and the to-be-processed speed limit information includes:
[0133] The range from the kilometer mark at the head end of the starting section to the first speed limit kilometer mark is determined as the first starting section range, and the range from the first speed limit kilometer mark to the kilometer mark at the tail end of the starting section of the starting track section is determined as the second starting section range;
[0134] The preset starting section speed is used to determine the static speed limit information of the line within the first starting section range, and the to-be-processed speed limit information is determined as the static speed limit information of the line within the second starting section range.
[0135] Specifically, the range from the kilometer mark at the head end of the starting section to the first speed limit kilometer mark is determined as the first starting section range, and the range from the first speed limit kilometer mark to the kilometer mark at the tail end of the starting section of the starting track section is determined as the second starting section range. The line static speed limit information of the first starting section range is determined as the preset starting section speed, and the line static speed limit information of the second starting section range is determined as the speed limit information to be processed.
[0136] See also Figure 4 , Figure 4 FIG. 2 is a schematic diagram showing another cross-track section processing type for determining line static speed limit information according to an embodiment of the present specification. Figure 4 As shown, the first speed limit kilometer mark is not equal to the kilometer mark at the head end of the starting section, that is, the starting track section has a first starting section range from the kilometer mark at the head end of the starting section to the first speed limit kilometer mark, and a second starting section range from the first speed limit kilometer mark to the kilometer mark at the tail end of the starting section. Since the speed limit information to be processed covers the second starting section range, the line static speed limit information of the second starting section range is determined as the speed limit information to be processed. It is determined whether there is other speed limit information in the first starting section range. If so, the first starting section range is not processed. If not, the preset starting section speed is determined as the line static speed limit information of the first starting section range.
[0137] Further, in a specific implementation manner provided in this specification, determining the line static speed limit information of the ending track section according to the second speed limit kilometer mark, the ending section end kilometer mark and the to-be-processed speed limit information includes:
[0138] When the second speed limit kilometer mark is equal to the kilometer mark at the end of the end section, the speed limit information to be processed is determined as the line static speed limit information of the end track section;
[0139] When the second speed limit kilometer mark is not equal to the kilometer mark at the end of the ending section, the preset ending section speed of the ending track section is obtained, and the line static speed limit information of the ending track section is determined based on the preset ending section speed and the speed limit information to be processed.
[0140] Specifically, if the second speed limit kilometer mark is equal to the kilometer mark at the end of the ending section, the speed limit information to be processed is determined as the line static speed limit information of the ending track section.
[0141] Continue to see Figure 3 ,like Figure 3 As shown, the second speed limit kilometer mark is equal to the kilometer mark at the end of the ending section, that is, the speed limit information to be processed covers the entire ending track section. Therefore, the speed limit information to be processed can be directly determined as the line static speed limit information of the ending track section.
[0142] If the second speed limit kilometer mark is not equal to the kilometer mark at the end of the ending section, the preset ending section speed of the ending track section is obtained, and based on the preset ending section speed and the speed limit information to be processed, the line static speed limit information of the ending track section is determined.
[0143] Further, in a specific implementation provided in this specification, determining the line static speed limit information of the ending track section based on the preset ending section speed and the to-be-processed speed limit information includes:
[0144] The range from the end section head kilometer mark to the second speed limit kilometer mark of the end track section is determined as the first end section range, and the range from the second speed limit kilometer mark to the end section tail kilometer mark is determined as the second end section range;
[0145] Determine the speed limit information to be processed as the line static speed limit information within the first end section range;
[0146] According to the preset end section speed, the line static speed limit information of the second end section range is determined.
[0147] Specifically, the range from the kilometer mark at the head end of the end section to the second speed limit kilometer mark is determined as the first end section range, and the range from the second speed limit kilometer mark to the kilometer mark at the tail end of the end section is determined as the second end section range. The line static speed limit information of the first end section range is determined as the speed limit information to be processed, and the line static speed limit information of the second end section range is determined according to the preset end section speed.
[0148] Furthermore, in a specific implementation manner provided in this specification, determining the line static speed limit information of the second end section range according to the preset end section speed includes:
[0149] In the case where no other speed limit information exists within the second end section range, determining the preset end section speed as the line static speed limit information within the second end section range;
[0150] When other speed limit information exists within the second end section range, determine the adjacent speed limit kilometer mark of the speed limit information to be processed, determine the adjacent non-speed limit information range based on the second speed limit kilometer mark and the adjacent speed limit kilometer mark, and determine the preset end section speed as the line static speed limit information within the adjacent non-speed limit information range.
[0151] After determining the second end section range in the end track section, it is necessary to determine whether there is other speed limit information in the second end section range. If not, the preset end section speed can be determined as the line static speed limit information of the second end section range. If it exists, the adjacent speed limit kilometer mark (i.e., the starting kilometer mark of the adjacent speed limit information) is determined, and the adjacent non-speed limit information range between the second speed limit kilometer mark and the adjacent speed limit kilometer mark is determined, and the line static speed limit information of the adjacent non-speed limit information range is determined as the preset end section speed.
[0152] Continue to see Figure 4 ,like Figure 4 As shown, the second speed limit kilometer mark is not equal to the kilometer mark at the end of the end section, that is, the end track section has a first end section range from the kilometer mark at the head end of the end section to the second speed limit kilometer mark, and a second end section range from the second speed limit kilometer mark to the kilometer mark at the end of the end section. Since the speed limit information to be processed covers the first end section range, the line static speed limit information of the first end section range is determined as the speed limit information to be processed. It is determined whether there is other speed limit information in the second end section range. If not, the preset end section speed is determined as the line static speed limit information of the second end section range. If so, the adjacent non-speed limit information range between the adjacent speed limit kilometer mark and the second speed limit kilometer mark and the adjacent speed limit kilometer mark is determined, and the line static speed limit information of the adjacent non-speed limit information range is determined as the preset end section speed.
[0153] In one embodiment provided in the present specification, when the speed limit processing type of the speed limit information to be processed is a cross-track segment processing type, it is determined whether the speed limit information to be processed completely covers the starting track segment or the ending track segment, so as to realize the processing of the starting track segment and the ending track segment, and when the track segment to be processed includes the intermediate track segment, the line static speed limit information of the intermediate track segment is directly determined as the speed limit information to be processed, so as to improve the processing efficiency of determining the speed limit information of the track segment to be processed.
[0154] The method for determining the static speed limit of a line provided in the present specification includes: obtaining a kilometer mark interval of speed limit to be processed corresponding to the speed limit information to be processed; querying the track section information to be processed corresponding to the speed limit information to be processed according to the kilometer mark interval of speed limit to be processed; determining the speed limit processing type of the speed limit information to be processed according to the track section information to be processed; determining the line static speed limit information of each track section to be processed in the track section information to be processed according to the speed limit processing type, the track section information to be processed, the speed limit information to be processed and the kilometer mark interval of speed limit to be processed.
[0155] An embodiment of this specification realizes that by obtaining the to-be-processed speed limit kilometer mark interval corresponding to the to-be-processed speed limit information, querying and obtaining the to-be-processed track section information corresponding to the to-be-processed speed limit information, and determining the speed limit processing type for processing the to-be-processed speed limit information according to the to-be-processed track section information, the line static speed limit information of each to-be-processed track section under different speed limit processing types is determined according to different speed limit processing types of the to-be-processed speed limit information, the to-be-processed track section information, the to-be-processed speed limit information and the to-be-processed speed limit kilometer mark interval. The speed limit processing type of the to-be-processed speed limit information is divided, the to-be-processed speed limit kilometer mark interval data is used as the basic data, and different line static speed limit information is determined based on different speed limit processing types, thereby improving the accuracy of determining the line static speed limit information.
[0156] Corresponding to the above method embodiment, this specification also provides an embodiment of a device for determining a static speed limit of a line, Figure 5 FIG. 2 shows a schematic diagram of a circuit static speed limit determination device provided by an embodiment of the present specification. Figure 5 As shown, the device comprises:
[0157] The acquisition module 502 is configured to acquire the speed limit kilometer mark interval to be processed corresponding to the speed limit information to be processed;
[0158] The query module 504 is configured to query the track section information to be processed corresponding to the speed limit information to be processed according to the speed limit kilometer mark section to be processed;
[0159] A type determination module 506 is configured to determine a speed limit processing type of the speed limit information to be processed according to the track section information to be processed;
[0160] The information determination module 508 is configured to determine the line static speed limit information of each track section to be processed in the track section information to be processed according to the speed limit processing type, the track section information to be processed, the speed limit information to be processed and the speed limit kilometer mark interval to be processed.
[0161] Optionally, the query module 504 is further configured to:
[0162] According to the speed limit kilometer mark interval to be processed, the starting track segment and the ending track segment of the speed limit information to be processed are screened, and the starting track segment information of the starting track segment and the ending track segment information of the ending track segment are obtained;
[0163] According to the starting track segment and the ending track segment, querying the intermediate track segment set corresponding to the to-be-processed speed limit information and the intermediate track segment information corresponding to each intermediate track segment in the intermediate track segment set;
[0164] The starting track segment information, the ending track segment information and the intermediate track segment information are determined as the track segment information to be processed corresponding to the speed limit information to be processed.
[0165] Optionally, the speed limit kilometer mark interval to be processed includes a first speed limit kilometer mark and a second speed limit kilometer mark, and the first speed limit kilometer mark is smaller than the second speed limit kilometer mark;
[0166] The query module 504 is further configured to:
[0167] Selecting the leading section kilometer mark that is less than the first speed limit kilometer mark and the trailing section kilometer mark that is greater than the second speed limit kilometer mark;
[0168] The track section to which the kilometer mark of the head end section belongs is determined as the starting track section of the speed limit information to be processed, and the track section to which the kilometer mark of the tail end section belongs is determined as the ending track section of the speed limit information to be processed.
[0169] Optionally, the query module 504 is further configured to:
[0170] Determine the start segment identifier of the start track segment in the start track segment information, determine the end segment identifier of the end track segment in the end track segment information, and obtain the track segment topological relationship;
[0171] According to the start segment identifier and the end segment identifier, querying the track segment between the start track segment and the end track segment in the track segment topological relationship;
[0172] Determine the track segment between the starting track segment and the ending track segment as the intermediate track segment corresponding to the speed limit information to be processed, and obtain an intermediate track segment set;
[0173] The intermediate track segment information of each intermediate track segment in the intermediate track segment set is obtained.
[0174] Optionally, the type determination module 506 is further configured to:
[0175] Determine a start segment identifier of a start track segment and an end segment identifier of an end track segment in the track segment information to be processed;
[0176] When the start section identifier is the same as the end section identifier, determining that the speed limit processing type of the speed limit information to be processed is a same track section processing type;
[0177] When the start segment identifier is different from the end segment identifier, it is determined that the speed limit processing type of the speed limit information to be processed is a cross-track segment processing type.
[0178] Optionally, the information determination module 508 is further configured to:
[0179] In the case where the speed limit processing type is the same track section processing type, determining the starting section head end kilometer mark and the starting section tail end kilometer mark of the starting track section in the track section information to be processed;
[0180] Determining a first speed limit kilometer mark and a second speed limit kilometer mark in the to-be-processed speed limit kilometer mark interval, wherein the first speed limit kilometer mark is smaller than the second speed limit kilometer mark;
[0181] The line static speed limit information of the starting track section is determined according to the kilometer mark at the beginning of the starting section, the kilometer mark at the end of the starting section, the first speed limit kilometer mark, the second speed limit kilometer mark and the speed limit information to be processed.
[0182] Optionally, the information determination module 508 is further configured to:
[0183] Determine the starting section range of the starting track section according to the kilometer mark at the head end of the starting section and the kilometer mark at the tail end of the starting section;
[0184] Determining a speed limit information range of the speed limit information to be processed according to the first speed limit kilometer mark and the second speed limit kilometer mark;
[0185] In a case where the starting section range is equal to the speed limit information range, determining the speed limit information to be processed as the line static speed limit information of the starting track section;
[0186] When the starting section range is larger than the speed limit information range, a preset starting section speed of the starting track section is obtained, and the line static speed limit information of the starting track section is determined based on the preset starting section speed and the speed limit information to be processed.
[0187] Optionally, the information determination module 508 is further configured to:
[0188] The first speed limit kilometer mark is equal to the kilometer mark at the beginning of the starting section, and the second speed limit kilometer mark is equal to the kilometer mark at the end of the starting section.
[0189] Optionally, the information determination module 508 is further configured to:
[0190] The first speed limit kilometer mark is equal to the kilometer mark at the beginning of the starting section, and the second speed limit kilometer mark is less than the kilometer mark at the end of the starting section; or
[0191] The first speed limit kilometer mark is greater than the kilometer mark at the beginning of the starting section, and the second speed limit kilometer mark is equal to the kilometer mark at the end of the starting section; or
[0192] The first speed limit kilometer mark is greater than the kilometer mark at the beginning of the starting section, and the second speed limit kilometer mark is less than the kilometer mark at the end of the starting section.
[0193] Optionally, the information determination module 508 is further configured to:
[0194] determining a non-speed limit information range in the starting track section according to the speed limit information range;
[0195] The static speed limit information of the line within the speed limit information range is determined according to the speed limit information to be processed, and the static speed limit information of the line within the non-speed limit information range is determined according to the preset starting section speed.
[0196] Optionally, the information determination module 508 is further configured to:
[0197] In the case where there is no other speed limit information in the non-speed limit information range, determining the preset starting section speed as the line static speed limit information in the non-speed limit information range;
[0198] When other speed limit information exists in the non-speed limit information range, and the non-speed limit information range is determined according to the second speed limit kilometer mark and the end kilometer mark of the starting section, the adjacent speed limit kilometer mark of the speed limit information to be processed is determined, and the adjacent non-speed limit information range is determined according to the second speed limit kilometer mark and the adjacent speed limit kilometer mark, and the preset starting section speed is determined as the line static speed limit information of the adjacent non-speed limit information range.
[0199] Optionally, the information determination module 508 is further configured to:
[0200] In the case where the speed limit processing type is a cross-track section processing type, determining a starting section head end kilometer mark of a starting track section and an ending section tail end kilometer mark of an ending track section in the track section information to be processed;
[0201] Determining a first speed limit kilometer mark and a second speed limit kilometer mark in the to-be-processed speed limit kilometer mark interval, wherein the first speed limit kilometer mark is smaller than the second speed limit kilometer mark;
[0202] According to the kilometer mark at the head end of the starting section, the kilometer mark at the tail end of the ending section, the first speed limit kilometer mark, the second speed limit kilometer mark and the speed limit information to be processed, the line static speed limit information of the starting track section, the ending track section and each intermediate track section is determined.
[0203] Optionally, the information determination module 508 is further configured to:
[0204] Determine the line static speed limit information of the starting track section according to the first speed limit kilometer mark, the starting section head end kilometer mark and the speed limit information to be processed;
[0205] Determine the line static speed limit information of the ending track section according to the second speed limit kilometer mark, the ending section tail kilometer mark and the speed limit information to be processed;
[0206] The speed limit information to be processed is determined as the line static speed limit information of each intermediate track section.
[0207] Optionally, the information determination module 508 is further configured to:
[0208] When the first speed limit kilometer mark is equal to the kilometer mark at the head end of the starting section, the speed limit information to be processed is determined as the line static speed limit information of the starting track section;
[0209] When the first speed limit kilometer mark is not equal to the kilometer mark at the head end of the starting section and no other speed limit information exists in the starting track section, the preset starting section speed of the starting track section is obtained, and the line static speed limit information of the starting track section is determined based on the preset starting section speed and the speed limit information to be processed.
[0210] Optionally, the information determination module 508 is further configured to:
[0211] The range from the kilometer mark at the head end of the starting section to the first speed limit kilometer mark is determined as the first starting section range, and the range from the first speed limit kilometer mark to the kilometer mark at the tail end of the starting section of the starting track section is determined as the second starting section range;
[0212] The preset starting section speed is used to determine the static speed limit information of the line within the first starting section range, and the to-be-processed speed limit information is determined as the static speed limit information of the line within the second starting section range.
[0213] Optionally, the information determination module 508 is further configured to:
[0214] When the second speed limit kilometer mark is equal to the kilometer mark at the end of the end section, the speed limit information to be processed is determined as the line static speed limit information of the end track section;
[0215] When the second speed limit kilometer mark is not equal to the kilometer mark at the end of the ending section, the preset ending section speed of the ending track section is obtained, and the line static speed limit information of the ending track section is determined based on the preset ending section speed and the speed limit information to be processed.
[0216] Optionally, the information determination module 508 is further configured to:
[0217] The range from the end section head kilometer mark to the second speed limit kilometer mark of the end track section is determined as the first end section range, and the range from the second speed limit kilometer mark to the end section tail kilometer mark is determined as the second end section range;
[0218] Determine the speed limit information to be processed as the line static speed limit information within the first end section range;
[0219] According to the preset end section speed, the line static speed limit information of the second end section range is determined.
[0220] Optionally, the information determination module 508 is further configured to:
[0221] In the case where no other speed limit information exists within the second end section range, determining the preset end section speed as the line static speed limit information within the second end section range;
[0222] When other speed limit information exists within the second end section range, determine the adjacent speed limit kilometer mark of the speed limit information to be processed, determine the adjacent non-speed limit information range based on the second speed limit kilometer mark and the adjacent speed limit kilometer mark, and determine the preset end section speed as the line static speed limit information within the adjacent non-speed limit information range.
[0223] The line static speed limit determination device provided in the present specification includes: an acquisition module, configured to obtain a to-be-processed speed limit kilometer mark interval corresponding to the to-be-processed speed limit information; a query module, configured to query the to-be-processed track section information corresponding to the to-be-processed speed limit information according to the to-be-processed speed limit kilometer mark interval; a type determination module, configured to determine the speed limit processing type of the to-be-processed speed limit information according to the to-be-processed track section information; an information determination module, configured to determine the line static speed limit information of each to-be-processed track section in the to-be-processed track section information according to the speed limit processing type, the to-be-processed track section information, the to-be-processed speed limit information and the to-be-processed speed limit kilometer mark interval.
[0224] An embodiment of this specification realizes that by obtaining the to-be-processed speed limit kilometer mark interval corresponding to the to-be-processed speed limit information, querying and obtaining the to-be-processed track section information corresponding to the to-be-processed speed limit information, and determining the speed limit processing type for processing the to-be-processed speed limit information according to the to-be-processed track section information, the line static speed limit information of each to-be-processed track section under different speed limit processing types is determined according to different speed limit processing types of the to-be-processed speed limit information, the to-be-processed track section information, the to-be-processed speed limit information and the to-be-processed speed limit kilometer mark interval. The speed limit processing type of the to-be-processed speed limit information is divided, the to-be-processed speed limit kilometer mark interval data is used as the basic data, and different line static speed limit information is determined based on different speed limit processing types, thereby improving the accuracy of determining the line static speed limit information.
[0225] The above is a schematic scheme of a line static speed limit determination device of this embodiment. It should be noted that the technical scheme of the line static speed limit determination device and the technical scheme of the line static speed limit determination method described above belong to the same concept, and the details not described in detail in the technical scheme of the line static speed limit determination device can be referred to the description of the technical scheme of the line static speed limit determination method described above.
[0226] Figure 6 The structure block diagram of a computing device 600 provided according to an embodiment of the present specification is shown. The components of the computing device 600 include but are not limited to a memory 610 and a processor 620. The processor 620 is connected to the memory 610 via a bus 630, and the database 650 is used to store data.
[0227] The computing device 600 also includes an access device 640 that enables the computing device 600 to communicate via one or more networks 660. Examples of these networks include a public switched telephone network (PSTN), a local area network (LAN), a wide area network (WAN), a personal area network (PAN), or a combination of communication networks such as the Internet. The access device 640 may include one or more of any type of network interface (e.g., a network interface card (NIC)) that is wired or wireless, such as an IEEE 802.11 wireless local area network (WLAN) wireless interface, a world-wide interoperability for microwave access (Wi-MAX) interface, an Ethernet interface, a universal serial bus (USB) interface, a cellular network interface, a Bluetooth interface, a near field communication (NFC) interface, and the like.
[0228] In one embodiment of the present specification, the above components of the computing device 600 and Figure 6 Other components not shown in the figure may also be connected to each other, for example, via a bus. It should be understood that Figure 6 The computing device structure block diagram shown is only for the purpose of illustration, and is not intended to limit the scope of this specification. Those skilled in the art can add or replace other components as needed.
[0229] The computing device 600 may be any type of stationary or mobile computing device, including a mobile computer or mobile computing device (e.g., a tablet computer, a personal digital assistant, a laptop computer, a notebook computer, a netbook, etc.), a mobile phone (e.g., a smart phone), a wearable computing device (e.g., a smart watch, smart glasses, etc.), or other types of mobile devices, or a stationary computing device such as a desktop computer or a personal computer (PC). The computing device 600 may also be a mobile or stationary server.
[0230] The processor 620 implements the steps of the method for determining the line static speed limit when executing the computer program / instructions.
[0231] The above is a schematic scheme of a computing device of this embodiment. It should be noted that the technical scheme of the computing device and the technical scheme of the above-mentioned method for determining the static speed limit of a line belong to the same concept, and the details not described in detail in the technical scheme of the computing device can be referred to the description of the technical scheme of the above-mentioned method for determining the static speed limit of a line.
[0232] An embodiment of the present specification further provides a computer-readable storage medium storing a computer program / instruction, which implements the steps of the method for determining a static speed limit of a line as described above when the computer program / instruction is executed by a processor.
[0233] The above is a schematic scheme of a computer-readable storage medium of this embodiment. It should be noted that the technical scheme of the storage medium and the technical scheme of the above-mentioned method for determining the static speed limit of the line belong to the same concept, and the details not described in detail in the technical scheme of the storage medium can be referred to the description of the technical scheme of the above-mentioned method for determining the static speed limit of the line.
[0234] An embodiment of the present specification further provides a computer program product, including a computer program / instruction, which implements the steps of the above-mentioned method for determining the static speed limit of a line when executed by a processor.
[0235] The above is a schematic scheme of a computer program product of this embodiment. It should be noted that the technical scheme of the computer program product and the technical scheme of the above-mentioned method for determining the static speed limit of a line belong to the same concept, and the details not described in detail in the technical scheme of the computer program product can be referred to the description of the technical scheme of the above-mentioned method for determining the static speed limit of a line.
[0236] The above is a description of a specific embodiment of the specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.
[0237] The computer program / instruction includes a computer program code, which may be in source code form, object code form, executable file or some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electric carrier signal, telecommunication signal and software distribution medium, etc.
[0238] It should be noted that, for the convenience of description, the aforementioned method embodiments are all described as a series of action combinations, but those skilled in the art should be aware that this specification is not limited by the order of the actions described, because according to this specification, some steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by this specification.
[0239] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
[0240] The preferred embodiments of this specification disclosed above are only used to help explain this specification. The optional embodiments do not describe all the details in detail, nor do they limit the invention to only the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of this specification, so that technicians in the relevant technical field can well understand and use this specification. This specification is limited only by the claims and their full scope and equivalents.
Claims
1. A method for determining a static speed limit of a line, characterized in that: include: Obtain the speed limit kilometer mark interval to be processed corresponding to the speed limit information to be processed; According to the speed limit kilometer mark interval to be processed, query the track section information to be processed corresponding to the speed limit information to be processed; Determine, according to the track segment information to be processed, a speed limit processing type of the speed limit information to be processed, wherein the speed limit processing type is determined based on a start segment identifier of a start track segment and an end segment identifier of an end track segment in the track segment information to be processed; In the case where the speed limit processing type is the same track section processing type, determining the line static speed limit information of the starting track section according to the speed limit information to be processed, the starting section head end kilometer mark and the starting section tail end kilometer mark of the starting track section determined in the track section information to be processed, and the first speed limit kilometer mark and the second speed limit kilometer mark in the speed limit kilometer mark interval to be processed; In the case where the speed limit processing type is a cross-track segment processing type, the line static speed limit information of the starting track segment, the ending track segment and each intermediate track segment is determined according to the speed limit information to be processed, the starting segment head end kilometer marker of the starting track segment and the ending segment tail end kilometer marker of the ending track segment determined in the track segment information to be processed, and the first speed limit kilometer marker and the second speed limit kilometer marker in the speed limit kilometer marker interval to be processed.
2. The method according to claim 1, characterized in that According to the speed limit kilometer mark section to be processed, querying the track section information to be processed corresponding to the speed limit information to be processed includes: According to the speed limit kilometer mark interval to be processed, the starting track segment and the ending track segment of the speed limit information to be processed are screened, and the starting track segment information of the starting track segment and the ending track segment information of the ending track segment are obtained; According to the starting track segment and the ending track segment, querying the intermediate track segment set corresponding to the to-be-processed speed limit information and the intermediate track segment information corresponding to each intermediate track segment in the intermediate track segment set; The starting track segment information, the ending track segment information and the intermediate track segment information are determined as the track segment information to be processed corresponding to the speed limit information to be processed.
3. The method according to claim 2, characterized in that The speed limit kilometer mark interval to be processed includes a first speed limit kilometer mark and a second speed limit kilometer mark, and the first speed limit kilometer mark is smaller than the second speed limit kilometer mark; According to the speed limit kilometer mark interval to be processed, screening the starting track section and the ending track section of the speed limit information to be processed includes: Selecting the leading section kilometer mark that is less than the first speed limit kilometer mark and the trailing section kilometer mark that is greater than the second speed limit kilometer mark; The track section to which the kilometer mark of the head end section belongs is determined as the starting track section of the speed limit information to be processed, and the track section to which the kilometer mark of the tail end section belongs is determined as the ending track section of the speed limit information to be processed.
4. The method according to claim 2, characterized in that According to the starting track segment and the ending track segment, querying the intermediate track segment set corresponding to the to-be-processed speed limit information and the intermediate track segment information corresponding to each intermediate track segment in the intermediate track segment set, including: Determine the start segment identifier of the start track segment in the start track segment information, determine the end segment identifier of the end track segment in the end track segment information, and obtain the track segment topological relationship; According to the start segment identifier and the end segment identifier, querying the track segment between the start track segment and the end track segment in the track segment topological relationship; Determine the track segment between the starting track segment and the ending track segment as the intermediate track segment corresponding to the speed limit information to be processed, and obtain an intermediate track segment set; The intermediate track segment information of each intermediate track segment in the intermediate track segment set is obtained.
5. The method according to claim 1, characterized in that Determining the speed limit processing type of the speed limit information to be processed according to the track section information to be processed includes: Determine a start segment identifier of a start track segment and an end segment identifier of an end track segment in the track segment information to be processed; When the start section identifier is the same as the end section identifier, determining that the speed limit processing type of the speed limit information to be processed is a same track section processing type; When the start segment identifier is different from the end segment identifier, it is determined that the speed limit processing type of the speed limit information to be processed is a cross-track segment processing type.
6. The method according to claim 1, characterized in that Determining the line static speed limit information of the starting track section according to the kilometer mark at the head end of the starting section, the kilometer mark at the tail end of the starting section, the first speed limit kilometer mark, the second speed limit kilometer mark and the speed limit information to be processed, including: Determine the starting section range of the starting track section according to the kilometer mark at the head end of the starting section and the kilometer mark at the tail end of the starting section; Determining a speed limit information range of the speed limit information to be processed according to the first speed limit kilometer mark and the second speed limit kilometer mark; In a case where the starting section range is equal to the speed limit information range, determining the speed limit information to be processed as the line static speed limit information of the starting track section; When the starting section range is larger than the speed limit information range, a preset starting section speed of the starting track section is obtained, and the line static speed limit information of the starting track section is determined based on the preset starting section speed and the speed limit information to be processed.
7. The method according to claim 6, characterized in that The starting section range is equal to the speed limit information range, including: The first speed limit kilometer mark is equal to the kilometer mark at the beginning of the starting section, and the second speed limit kilometer mark is equal to the kilometer mark at the end of the starting section.
8. The method according to claim 6, characterized in that The starting section range is larger than the speed limit information range, including: The first speed limit kilometer mark is equal to the kilometer mark at the beginning of the starting section, and the second speed limit kilometer mark is less than the kilometer mark at the end of the starting section; or The first speed limit kilometer mark is greater than the kilometer mark at the beginning of the starting section, and the second speed limit kilometer mark is equal to the kilometer mark at the end of the starting section; or The first speed limit kilometer mark is greater than the kilometer mark at the beginning of the starting section, and the second speed limit kilometer mark is less than the kilometer mark at the end of the starting section.
9. The method according to claim 6, characterized in that Determining the line static speed limit information of the starting track section based on the preset starting section speed and the to-be-processed speed limit information includes: determining a non-speed limit information range in the starting track section according to the speed limit information range; The static speed limit information of the line within the speed limit information range is determined according to the speed limit information to be processed, and the static speed limit information of the line within the non-speed limit information range is determined according to the preset starting section speed.
10. The method according to claim 9, characterized in that Determining the line static speed limit information of the non-speed limit information range according to the preset starting section speed includes: In the case where there is no other speed limit information in the non-speed limit information range, determining the preset starting section speed as the line static speed limit information in the non-speed limit information range; When other speed limit information exists in the non-speed limit information range, and the non-speed limit information range is determined according to the second speed limit kilometer mark and the end kilometer mark of the starting section, the adjacent speed limit kilometer mark of the speed limit information to be processed is determined, and the adjacent non-speed limit information range is determined according to the second speed limit kilometer mark and the adjacent speed limit kilometer mark, and the preset starting section speed is determined as the line static speed limit information of the adjacent non-speed limit information range.
11. The method according to claim 1, characterized in that According to the kilometer mark at the head end of the starting section, the kilometer mark at the tail end of the ending section, the first speed limit kilometer mark, the second speed limit kilometer mark and the speed limit information to be processed, the line static speed limit information of the starting track section, the ending track section and each intermediate track section is determined, including: Determine the line static speed limit information of the starting track section according to the first speed limit kilometer mark, the starting section head end kilometer mark and the speed limit information to be processed; Determine the line static speed limit information of the ending track section according to the second speed limit kilometer mark, the ending section tail kilometer mark and the speed limit information to be processed; The speed limit information to be processed is determined as the line static speed limit information of each intermediate track section.
12. The method according to claim 11, characterized in that Determining the line static speed limit information of the starting track section according to the first speed limit kilometer mark, the starting section head end kilometer mark and the speed limit information to be processed includes: When the first speed limit kilometer mark is equal to the kilometer mark at the head end of the starting section, the speed limit information to be processed is determined as the line static speed limit information of the starting track section; When the first speed limit kilometer mark is not equal to the kilometer mark at the head end of the starting section and no other speed limit information exists in the starting track section, the preset starting section speed of the starting track section is obtained, and the line static speed limit information of the starting track section is determined based on the preset starting section speed and the speed limit information to be processed.
13. The method according to claim 12, characterized in that Determining the line static speed limit information of the starting track section based on the preset starting section speed and the to-be-processed speed limit information includes: The range from the kilometer mark at the head end of the starting section to the first speed limit kilometer mark is determined as the first starting section range, and the range from the first speed limit kilometer mark to the kilometer mark at the tail end of the starting section of the starting track section is determined as the second starting section range; The preset starting section speed is used to determine the static speed limit information of the line within the first starting section range, and the to-be-processed speed limit information is determined as the static speed limit information of the line within the second starting section range.
14. The method according to claim 11, characterized in that Determining the line static speed limit information of the ending track section according to the second speed limit kilometer mark, the ending section tail kilometer mark and the to-be-processed speed limit information includes: When the second speed limit kilometer mark is equal to the kilometer mark at the end of the end section, the speed limit information to be processed is determined as the line static speed limit information of the end track section; When the second speed limit kilometer mark is not equal to the kilometer mark at the end of the ending section, the preset ending section speed of the ending track section is obtained, and the line static speed limit information of the ending track section is determined based on the preset ending section speed and the speed limit information to be processed.
15. The method according to claim 14, characterized in that Determining the line static speed limit information of the ending track section based on the preset ending section speed and the to-be-processed speed limit information includes: The range from the end section head kilometer mark to the second speed limit kilometer mark of the end track section is determined as the first end section range, and the range from the second speed limit kilometer mark to the end section tail kilometer mark is determined as the second end section range; Determine the speed limit information to be processed as the line static speed limit information within the first end section range; According to the preset end section speed, the line static speed limit information of the second end section range is determined.
16. The method according to claim 15, characterized in that Determining the line static speed limit information of the second end section range according to the preset end section speed includes: In the case where no other speed limit information exists within the second end section range, determining the preset end section speed as the line static speed limit information within the second end section range; When other speed limit information exists within the second end section range, determine the adjacent speed limit kilometer mark of the speed limit information to be processed, determine the adjacent non-speed limit information range based on the second speed limit kilometer mark and the adjacent speed limit kilometer mark, and determine the preset end section speed as the line static speed limit information within the adjacent non-speed limit information range.
17. A device for determining a static speed limit on a line, characterized in that: include: An acquisition module is configured to acquire a speed limit kilometer mark interval to be processed corresponding to the speed limit information to be processed; A query module is configured to query the track section information to be processed corresponding to the speed limit information to be processed according to the speed limit kilometer mark section to be processed; a type determination module, configured to determine, according to the track segment information to be processed, a speed limit processing type of the speed limit information to be processed, wherein the speed limit processing type is determined based on a start segment identifier of a start track segment and an end segment identifier of an end track segment in the track segment information to be processed; The information determination module is configured to determine the line static speed limit information of the starting track section according to the speed limit information to be processed, the starting section head end kilometer mark and the starting section tail end kilometer mark of the starting track section determined in the track section information to be processed, and the first speed limit kilometer mark and the second speed limit kilometer mark in the speed limit kilometer mark interval to be processed when the speed limit processing type is the same track section processing type; In the case where the speed limit processing type is a cross-track segment processing type, the line static speed limit information of the starting track segment, the ending track segment and each intermediate track segment is determined according to the speed limit information to be processed, the starting segment head end kilometer marker of the starting track segment and the ending segment tail end kilometer marker of the ending track segment determined in the track segment information to be processed, and the first speed limit kilometer marker and the second speed limit kilometer marker in the speed limit kilometer marker interval to be processed.
18. A computing device comprising: Memory and processor; The memory is used to store computer programs / instructions, and the processor is used to execute the computer programs / instructions. It is characterized in that when the computer program / instructions are executed by the processor, the steps of the method described in any one of claims 1 to 16 are implemented.
19. A computer-readable storage medium storing a computer program / instruction, characterized in that: When the computer program / instructions are executed by a processor, the steps of the method according to any one of claims 1 to 16 are implemented.
20. A computer program product comprising a computer program / instructions, characterized in that When the computer program / instructions are executed by a processor, the steps of the method according to any one of claims 1 to 16 are implemented.
Citation Information
Patent Citations
Regional speed limit value obtaining method, device and terminal device
CN107886461A
Rail transit line static speed limit detection method and device
CN110920685A