Train safety protection distance adjustment method and device

Abstract

This specification provides a method and apparatus for adjusting the safety protection distance of a train. The method includes: acquiring the current safety protection distance of a target train and a preset set of attribute distances; identifying at least one current operating scenario in which the target train is located, and filtering target attribute distance data and target protection weights corresponding to each current operating scenario from the preset set of attribute distances based on each current operating scenario; determining the target expected safety protection distance of the target train based on the target attribute distance data; determining the undetermined safety protection distance of the target train in each current operating scenario based on the target attribute distance data and the target expected safety protection distance; determining the target safety protection distance of the target train based on the undetermined safety protection distance and the target protection weights corresponding to each current operating scenario, and adjusting the current safety protection distance to the target safety protection distance.

Description

Technical Field

[0001] This specification relates to the field of rail transit technology, and in particular to a method for adjusting train safety protection distance. This specification also relates to a train safety protection distance adjustment device, a computing device, a computer-readable storage medium, and a computer program product. Background Technology

[0002] In current practical applications of rail transit, to ensure safe train operation, a safe train protection distance is typically set, and movement authorization is configured based on this distance. This allows train operation to be controlled according to the pre-set safe protection distance. However, during actual train operation, issues such as train communication failures and track slippage or icing due to weather conditions may occur. In these scenarios, the train may not be able to continue operating within the pre-set safe protection distance, jeopardizing train safety. Therefore, it is crucial to update the train's safe protection distance in real time based on the actual operating environment. Summary of the Invention

[0003] In view of this, embodiments of this specification provide a method for adjusting the safety protection distance of a train. One or more embodiments of this specification also relate to a train safety protection distance adjustment device, a computing device, a computer-readable storage medium, and a computer program product, to address the technical deficiencies existing in the prior art.

[0004] According to a first aspect of the embodiments of this specification, a method for adjusting the safety protection distance of a train is provided, comprising:

[0005] Obtain the current safe protection distance and preset attribute distance set of the target train;

[0006] Identify at least one current operating scenario in which the target train is located, and based on each current operating scenario in which the target train is located, filter target attribute distance data and target protection weights corresponding to each current operating scenario from the preset attribute distance set;

[0007] Based on the target attribute distance data, determine the target expected safety protection distance corresponding to the target train;

[0008] Based on the target attribute distance data and the target expected safety protection distance, determine the undetermined safety protection distance of the target train in each current operating scenario;

[0009] Based on the undetermined safety protection distance corresponding to each current operating scenario and the target protection weight corresponding to each current operating scenario, the target safety protection distance of the target train is determined, and the current safety protection distance is adjusted to the target safety protection distance.

[0010] According to a second aspect of the embodiments of this specification, a train safety protection distance adjustment device is provided, comprising:

[0011] The acquisition module is configured to acquire the current safe protection distance and preset attribute distance set of the target train;

[0012] The identification module is configured to identify at least one current operating scenario in which the target train is located, and to filter target attribute distance data and target protection weights corresponding to each current operating scenario in the preset attribute distance set according to each current operating scenario in which the target train is located;

[0013] The first determining module is configured to determine the target expected safety protection distance corresponding to the target train based on the target attribute distance data;

[0014] The second determining module is configured to determine the undetermined safety protection distance of the target train in each current operating scenario based on the target attribute distance data and the target expected safety protection distance;

[0015] The adjustment module is configured to determine the target safety protection distance of the target train based on the undetermined safety protection distance corresponding to each current operating scenario and the target protection weight corresponding to each current operating scenario, and adjust the current safety protection distance to the target safety protection distance.

[0016] According to a third aspect of the embodiments of this specification, a computing device is provided, comprising:

[0017] Memory and processor;

[0018] 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, they implement the steps of the above-described train safety protection distance adjustment method.

[0019] According to a fourth aspect of the embodiments of this specification, a computer-readable storage medium is provided that stores a computer program / instructions, which, when executed by a processor, implement the steps of the above-described train safety protection distance adjustment method.

[0020] According to a fifth aspect of the embodiments of this specification, a computer program product is provided, including a computer program / instructions that, when executed by a processor, implement the steps of the above-described train safety protection distance adjustment method.

[0021] One embodiment of this specification implements a method that, by identifying at least one current operating scenario in which the target train is located, obtains the target protection weight and target attribute distance data corresponding to the current operating scenario, and determines the target expected safety protection distance of the target train in various operating environments based on the different target protection weights and target attribute distance data corresponding to different current operating scenarios. Then, based on the target expected safety protection distance, the adjusted target safety protection distance of the target train is determined so that the target train can operate based on the target safety protection distance in subsequent operations. This method combines multiple operating environments in which the target train is located to determine the target safety protection distance that needs adjustment, achieving dynamic management of the target train's safety protection distance, improving the accuracy and reliability of the determined target safety protection distance, and enhancing the safety of the target train's operation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram illustrating an application scenario of a train safety protection distance adjustment method provided in one embodiment of this specification;

[0023] Figure 2 This is a flowchart illustrating a method for adjusting the safety protection distance of a train, as provided in one embodiment of this specification.

[0024] Figure 3 This is a flowchart illustrating the processing steps of a train safety protection distance adjustment method provided in one embodiment of this specification;

[0025] Figure 4 This is a schematic diagram of the structure of a train safety protection distance adjustment device provided in one embodiment of this specification;

[0026] Figure 5 This is a structural block diagram of a computing device provided in one embodiment of this specification. Detailed Implementation

[0027] Many specific details are set forth in the following description to provide 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 extensions without departing from the spirit of this specification. Therefore, this specification is not limited to the specific implementations disclosed below.

[0028] The terminology used in one or more embodiments of this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the one or more embodiments of this specification. The singular forms “a,” “described,” and “the” as used in one or more embodiments of this specification and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as 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.

[0029] 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, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, first may also be referred to as second without departing from the scope of one or more embodiments of this specification, and similarly, second may also be referred to as first. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to a determination."

[0030] Furthermore, 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. Moreover, the collection, use and processing of related data must comply with the relevant laws, regulations and standards of the relevant countries and regions, and corresponding operation entry points are provided for users to choose to authorize or refuse.

[0031] First, the terms and concepts used in one or more embodiments of this specification will be explained.

[0032] Train safety protection distance: refers to the minimum safe distance that should be maintained between two trains or between a train and an obstacle in railway transportation to ensure safe train operation, prevent collisions between trains, or provide sufficient braking space to avoid collisions, based on train speed, braking performance, signal system control capabilities, and other operating conditions.

[0033] In current practical applications of rail transit, to ensure safe train operation, a safe train protection distance is typically set, and movement authorization is configured based on this distance. This allows train operation to be controlled according to the pre-set safe protection distance. However, during actual train operation, issues such as train communication failures and track slippage or icing due to weather conditions may occur. In these scenarios, the train may not be able to continue operating within the pre-set safe protection distance, jeopardizing train safety. Therefore, it is crucial to update the train's safe protection distance in real time based on the actual operating environment.

[0034] This specification provides a method for adjusting the safety protection distance of a train. This specification also relates to a train safety protection distance adjustment device, a computing device, a computer-readable storage medium, and a computer program product, which will be described in detail in the following embodiments.

[0035] See Figure 1 , Figure 1 A schematic diagram illustrating an application scenario of a train safety protection distance adjustment method according to an embodiment of this specification is shown. Figure 1 As shown, in rail transit applications, trains need to maintain a certain safe distance from each other during operation (specifically as follows). Figure 1 (As shown in the diagram) to prevent the current train from rear-ending the train in front, thus avoiding a safety accident. In practical applications, a basic safety protection distance is often preset so that the train can be controlled according to this preset distance during operation, enabling traction, braking, and other operations. However, train operating scenarios are often variable. For example, a train may encounter sudden heavy rain or snow. In such cases, the track may become slippery due to the rain or snow, and the train may not be able to continue operating at the basic safety protection distance. Therefore, it is necessary to redetermine the corresponding safety protection distance based on the current operating scenario to ensure that the train can continue operating at the new safety protection distance, thereby ensuring the safety of train operation.

[0036] The train safety protection distance adjustment method provided in this specification, when it is determined that the train needs to adjust its safety protection distance, can obtain the train's current safety protection distance and a preset set of attribute distances. After identifying at least one current operating scenario in which the train is located, target attribute distance data and corresponding target protection weights corresponding to multiple current operating scenarios are filtered from the preset set of attribute distances. Based on the target attribute distance data and corresponding target protection weights for each current operating scenario, the target expected safety protection distance for the train in the current multiple operating scenarios is determined. Furthermore, based on the determined target expected safety protection distance, the undetermined safety protection distances for the train in different operating scenarios are determined from the target attribute distance data. Thus, the target safety protection distance for the train can be determined based on the undetermined safety protection distances and target protection weights for different current operating scenarios, and the obtained current safety protection distance of the train is adjusted to the determined target safety protection distance. This allows the train to maintain the target safety protection distance during subsequent operation.

[0037] One embodiment provided in this specification implements a system in which, during train operation, by identifying multiple operating scenarios in which the train is located, and by combining the basic safety protection distance and protection weight pre-set for the train under multiple operating scenarios, a decision is made on the adjusted target safety protection distance for the train under these multiple operating scenarios. This allows the train to continue operating at the target safety protection distance, further ensuring the safety of train operation without affecting the train's operation.

[0038] See Figure 2 , Figure 2 A flowchart of a train safety protection distance adjustment method according to an embodiment of this specification is shown, which specifically includes the following steps:

[0039] Step 202: Obtain the current safety protection distance and preset attribute distance set of the target train.

[0040] Among them, the target train refers to any train during the train operation. The current safety protection distance refers to the train safety protection distance of the target train at the current operation moment or within the current operation time interval. The preset attribute distance set includes preset safety protection distances and preset protection weights corresponding to different operation scenarios set in advance. The operation scenarios can specifically include standard operation scenarios and abnormal operation scenarios, etc. The standard operation scenario is the scenario where the train operates normally; the abnormal operation scenario can specifically include the first abnormal operation scenario, for example, train communication failure, etc., and can also include the second abnormal operation scenario, for example, icing on the train line track, wetness of the train line track, etc. Based on this, the first abnormal operation scenario refers to the scenario where the train operation scenario is abnormal due to abnormal train attribute information; the second abnormal operation scenario refers to the scenario where the train operation scenario is abnormal due to the external environment. For the above-mentioned standard operation scenario, the first abnormal operation scenario and the second abnormal operation scenario, different preset protection weights can be set respectively. For example, the preset protection weight of the standard operation scenario is set as S, the preset protection weight of the first abnormal operation scenario is set as A, and the preset protection weight of the second abnormal operation scenario is set as E, and S < A < E. To determine the influence degree of different influencing factors on the train operation in different operation scenarios, the preset safety protection distance corresponding to different operation scenarios can be set by setting protection dimensions. In one or more embodiments provided in this specification, the preset protection dimensions of the preset safety protection distance in different operation scenarios can be determined as dimensions such as hazard degree, response time, braking distance, and braking rate. Specifically, the hazard degree can be specifically represented by Hd, the response time can be specifically represented by Rt, the braking distance can be specifically represented by Bd, and the braking rate can be specifically represented by Br.

[0041] During the operation of the target train, if it is determined that the operation scenario of the target train has changed, after adjusting the current safety protection distance of the target train, the current safety protection distance of the target train and the preset attribute distance set can be obtained, so as to determine the safety protection distance required for the target train to use during the subsequent operation through the preset attribute distance set.

[0042] Step 204: Identify at least one current operation scenario in which the target train is located, and screen target attribute distance data and target protection weights corresponding to each current operation scenario from the preset attribute distance set according to each current operation scenario in which the target train is located.

[0043] In practical applications, since the preset attribute distance set includes the preset safety protection distance and preset protection weight corresponding to the train in different operating scenarios, after obtaining the current safety protection distance and preset attribute distance set of the target train, it is necessary to identify the current operating scenario of the target train to determine which operating scenarios the target train is in at this time. Then, based on the operating scenario of the target train, the preset attribute distance data that needs to be used in the preset attribute distance set is determined.

[0044] The current operating scenario refers to the operating scenario in which the target train is located at the current moment or within the current time interval. In practical applications, there can be one or more current operating scenarios; this specification does not limit the number of current operating scenarios, which can be determined based on the actual application. For example, the current operating scenario in which the target train is located can be at least one of the standard operating scenario, the first abnormal operating scenario, and the second abnormal operating scenario. Target attribute distance data refers to the preset attribute distance data corresponding to each current operating scenario, which can be understood as preset safety protection distances. Target protection weight refers to the preset protection weight corresponding to each current operating scenario.

[0045] Specifically, by identifying at least one current operating scenario in which the target train is located, and based on the current operating scenario in which the target train is located, the preset safety protection distance corresponding to each current operating scenario is determined as the target attribute distance data in the preset attribute distance set, and the preset protection weight corresponding to each target operating scenario is determined as the target protection weight.

[0046] In practical applications, the current operating scenario of the target train may be related to the train's own attribute information or the current operating environment. Therefore, in the process of identifying the current operating scenario of the target train, it can be identified based on the train's attribute information and the current operating environment.

[0047] In one specific embodiment provided in this specification, identifying at least one current operating scenario in which the target train is located includes:

[0048] Identify the train attribute information of the target train, and generate the attribute identification result of the target train based on the train attribute information;

[0049] Identify the current operating environment of the target train, and generate an environment identification result for the target train based on the current operating environment;

[0050] Based on the attribute recognition results and the environment recognition results, the current operating scenario of the target train is determined.

[0051] Among them, train attribute information refers to the attribute information of the target train itself, such as the target train's communication system information and automatic protection system information. Attribute identification result refers to the identification result generated after anomaly identification of the target train's train attribute information. Current operating environment refers to the operating environment of the target train at the current moment or within the current time interval, such as icy or slippery tracks. Environmental identification result refers to the identification result generated after anomaly identification of the target train's current operating environment.

[0052] Specifically, anomaly identification is performed on the target train's attribute information to generate attribute identification results, which determine whether the target train's attribute information is abnormal. Anomaly identification is also performed on the target train's current operating environment to generate environmental identification results, which determine whether the target train's current operating environment is abnormal. After obtaining the target train's attribute identification results and environmental identification results, the current operating scenario of the target train can be determined based on these results.

[0053] Furthermore, in a specific embodiment provided in this specification, determining the current operating scenario of the target train based on the attribute recognition result and the environment recognition result includes:

[0054] If the attribute identification result shows an anomaly and the environment identification result does not show an anomaly, the current operating scenario of the target train is determined to be the first abnormal operating scenario;

[0055] If the attribute identification result does not show any abnormality, but the environment identification result shows an abnormality, the current operating scenario of the target train is determined to be the second abnormal operating scenario;

[0056] If the attribute identification result shows an anomaly and the environment identification result shows an anomaly, the current operating scenario of the target train is determined to be the first abnormal operating scenario and the second abnormal operating scenario.

[0057] If the attribute identification results do not show any abnormalities and the environment identification results do not show any abnormalities, the current operating scenario of the target train is determined to be a standard operating scenario.

[0058] After obtaining the target train's attribute recognition results and environment recognition results, it is determined whether the target train's train attribute information and environment recognition information are abnormal. If the target train's attribute recognition results show an anomaly, but the environment recognition results do not, it indicates that the target train's train attribute information is abnormal, but the current operating environment is not abnormal. In this case, the target train's current operating scenario can be determined as the first abnormal operating scenario. If the target train's attribute recognition results do not show an anomaly, but the environment recognition results do, it indicates that the target train's train attribute information is not abnormal, but the current operating environment is abnormal. In this case, the target train's current operating scenario can be determined as the second abnormal operating scenario. If the target train's attribute recognition results show an anomaly, and the environment recognition results also show an anomaly, it indicates that both the target train's train attribute information and the current operating environment are abnormal. In this case, the target train's current operating scenario can be determined as a superposition of the first and second abnormal operating scenarios. If the target train's attribute recognition results do not show any abnormalities, and the environment recognition results also do not show any abnormalities, it means that the target train's train attribute information and current operating environment are not abnormal. At this time, it can be determined that the target train's current operating scenario is a standard operating scenario.

[0059] The train safety protection distance adjustment method provided in this manual can detect whether the train attribute information and current operating environment of the target train are abnormal by identifying anomalies. This determines the current operating scenario of the target train, which is beneficial for dynamically adjusting the safety protection distance of the target train in real time according to the different operating scenarios of the target train.

[0060] Step 206: Determine the target expected safety protection distance corresponding to the target train based on the target attribute distance data.

[0061] After determining the target attribute distance data, i.e. the preset safety protection distance corresponding to the current operating scenario, based on the target train's current operating scenario, the target expected safety protection distance of the target train can be further determined based on the target attribute distance data.

[0062] The target expected safety protection distance refers to the expected safety protection distance after adjusting the current safety protection distance of the target train. Specifically, the target expected safety protection distance includes positive and negative expected safety protection distances. A positive expected safety protection distance is the optimal safety protection distance expected after adjusting the current safety protection distance of the target train; a negative expected safety protection distance is the worst expected safety protection distance expected after adjusting the current safety protection distance of the target train. The positive and negative expected safety protection distances are used to filter the target safety protection distance after adjusting the current safety protection distance of the target train.

[0063] In one specific embodiment provided in this specification, determining the target expected safety protection distance corresponding to the target train based on the target attribute distance data includes:

[0064] Determine at least one preset protection dimension corresponding to the target train and the number of trains operating on the line;

[0065] Based on each preset protection dimension, the number of trains in operation, and the target attribute distance data, a protection distance matrix is ​​constructed for the target train in each current operating scenario.

[0066] Based on each protection distance matrix, determine the target's expected safe protection distance.

[0067] In practical applications, in order to determine the degree of influence of different influencing factors on the safe protection distance of the target train in different current operating scenarios, multiple protection dimensions can be set in advance for determination.

[0068] The preset protection dimensions refer to the different dimensions used to assess the safety protection distance of the target train. Specifically, preset protection dimensions may include hazard level, response time, braking distance, and braking rate. Hazard level can be represented by Hd, response time by Rt, braking distance by Bd, and braking rate by Br. The protection distance matrix is ​​a safety protection distance matrix constructed based on the preset protection dimensions and target attribute distance data, as shown in Formula 1 below:

[0069] Formula 1

[0070] Where Z is the protection distance matrix; T x,Hd The first dimension under the severity of harm x The attribute distance data of each train, that is, the first dimension under the degree of harm. x The safe distance between trains; T x,RtIn response to the time dimension, the first x The attribute distance data of each train, that is, the first train in the response time dimension. x The safe distance between trains; T x,Bd For the braking distance dimension, the first x The attribute distance data of each train, that is, the braking distance dimension of the first train. x The safe distance between trains; T x,Br For the braking rate dimension, the first x The attribute distance data of each train, that is, the first train in the braking rate dimension. x The safe distance between trains; x This refers to the number of trains operating on the line. The target train is the number of trains from train number 1 to train number 2. x Any one of the trains.

[0071] Specifically, multiple preset protection dimensions corresponding to the target train and the number of line trains operating on the train line are determined. After obtaining the target attribute distance data, protection distance matrices corresponding to the target train in different current operating scenarios are constructed based on the multiple preset protection dimensions, the number of line trains operating, and the target attribute distance data. That is, a standard protection distance matrix corresponding to the target train in the standard operating scenario is constructed, a first abnormal protection distance matrix corresponding to the target train in the first abnormal operating scenario is constructed, and a second abnormal protection distance matrix corresponding to the target train in the second abnormal operating scenario is constructed. Based on the constructed standard protection distance matrix, first abnormal protection distance matrix, and second abnormal protection distance matrix, the target expected safety protection distance is determined, namely the positive expected safety protection distance and the negative expected safety protection distance. Specifically, these can be obtained by solving each protection distance matrix using the cosine method. The process of solving the positive expected safety protection distance can be found in the following formula 2:

[0072] Formula 2

[0073] in, Z Tx + Here, S represents the expected safety protection distance; A represents the preset protection weight for the standard operating scenario; E represents the preset protection weight for the first abnormal operating scenario; SL represents the preset safety protection distance for the standard operating scenario; AL represents the preset safety protection distance for the first abnormal operating scenario; and EL represents the preset safety protection distance for the second abnormal operating scenario. The expected safety protection distance can be calculated using Formula 2 above.

[0074] Furthermore, the process of solving for the negative expected safety protection distance can be found in the following formula 3:

[0075] Formula 3

[0076] in, Z Tx - This represents the negative expected safety protection distance. The negative expected safety protection distance can be calculated using Formula 3 above.

[0077] The train safety protection distance adjustment method provided in this manual combines different preset protection dimensions to solve for the target expected safety protection distance, namely the positive expected safety protection distance and the negative expected safety protection distance, under multiple current operating scenarios of the target train. This method can obtain the target expected safety protection distance of the target train under the superposition of multiple current operating scenarios, making the reliability of the target expected safety protection distance higher.

[0078] Step 208: Based on the target attribute distance data and the target expected safety protection distance, determine the undetermined safety protection distance of the target train in each current operating scenario.

[0079] After determining the target expected safety protection distance of the target train in different current operating scenarios, the corresponding undetermined safety protection distance can be determined in different current operating scenarios based on the target expected safety protection distance.

[0080] Among them, the safety protection distance to be determined refers to the safety protection distance used to determine the target safety protection distance in each current operating scenario, that is, the safety protection distance used to determine the target safety protection distance based on each protection distance matrix.

[0081] In one specific embodiment provided in this specification, determining the undetermined safety protection distance of the target train in each current operating scenario based on the target attribute distance data and the target expected safety protection distance includes:

[0082] Determine the protection distance matrix to be processed from each protection distance matrix, wherein the protection distance matrix to be processed is any one of the protection distance matrices;

[0083] Input the protection distance matrix to be processed into the multi-attribute decision model to obtain at least one safety protection distance to be processed for the target train in the operation scenario to be processed.

[0084] Based on the target expected safety protection distance, determine the undetermined safety protection distance of the target train in the undetermined operating scenario from among the various undetermined safety protection distances.

[0085] Here, the protection distance matrix to be processed is any one of the protection distance matrices. The running scenario to be processed refers to the running scenario corresponding to the protection distance matrix to be processed in each current running scenario. The multi-attribute decision model is used to generate multiple security protection distances to be processed corresponding to each protection distance matrix. The security protection distance to be processed refers to the solution of multiple security protection distances output by the multi-attribute decision model, and the security protection distance to be determined is one of the multiple security protection distances to be processed.

[0086] Specifically, after constructing and obtaining each protection distance matrix, for any protection distance matrix (i.e., the protection distance matrix to be processed), the protection distance matrix to be processed is input into the multi-attribute decision model. This yields multiple solutions output by the multi-attribute decision model, representing multiple unprocessed safety protection distances corresponding to the target train's operating scenario (i.e., the operating scenario to be processed) within the protection distance matrix to be processed. Since the train cannot operate based on multiple safety protection distances in its actual operating scenario, it is necessary to determine a safety protection distance to be determined from the multiple unprocessed safety protection distances output by the multi-attribute decision model. This undetermined safety protection distance is then used to determine the target weighted protection distance guiding the train's operation in subsequent processes. Specifically, the undetermined safety protection distance can be determined from the multiple unprocessed safety protection distances based on the obtained positive and negative expected safety protection distances.

[0087] In one embodiment provided in this specification, a multi-attribute decision model is used to generate multiple unprocessed security protection distances for determining the target security protection distance. This allows the multi-attribute decision model to integrate multiple protection dimensions and output the unprocessed security protection distances before determining the target security protection distance. To ensure the accuracy of the target security protection distance, a further undetermined security protection distance is selected from the multiple unprocessed security protection distances, thereby improving the accuracy of determining the target security protection distance.

[0088] The following explains the specific implementation process of determining the safety protection distance to be determined among multiple safety protection distances to be processed.

[0089] In one specific embodiment provided in this specification, determining the undetermined safety protection distance of the target train in the undetermined operating scenario from among the various undetermined safety protection distances includes:

[0090] Candidate safety protection distances are determined from among the safety protection distances to be processed, wherein the candidate safety protection distance is any one of the safety protection distances to be processed;

[0091] Calculate the unprocessed similarity between the candidate security protection distance and the target expected security protection distance;

[0092] Based on the required similarity, determine the required proximity between the candidate security protection distance and the target expected security protection distance;

[0093] Based on the approach degree to be processed, the undetermined safety protection distance of the target train in the operating scenario to be processed is determined.

[0094] The candidate security protection distance is any one of the security protection distances to be processed. The processing similarity refers to the similarity between the candidate security protection distance and the target expected security protection distance, used to characterize the closeness between the two. The processing similarity includes positive similarity and negative similarity. Positive similarity is the similarity between the candidate security protection distance and the positive expected security protection distance, while negative similarity is the similarity between the candidate security protection distance and the negative expected security protection distance. Specifically, the processing similarity can be calculated by determining the Euclidean distance or cosine distance between the candidate security protection distance and the target expected security protection distance.

[0095] The approach similarity to be processed refers to the relative closeness between the candidate security protection distance and the positive expected security protection distance. It is specifically calculated based on the positive similarity to be processed and the negative similarity to be processed.

[0096] Specifically, for any candidate security protection distance, the positive similarity between the candidate security protection distance and the positive expected security protection distance, and the negative similarity between the candidate security protection distance and the negative expected security protection distance, are calculated. Based on the positive and negative similarities, the convergence between the candidate security protection distance and the positive expected security protection distance is calculated. After calculating the convergence between each candidate security protection distance and the positive expected security protection distance, the security protection distance to be determined is determined from among the candidate security protection distances. Specifically, the security protection distance with the largest numerical convergence is determined as the security protection distance to be determined.

[0097] Furthermore, the process of calculating the convergence between the safety protection distance to be processed and the positive expected safety protection distance is as follows:

[0098] In one specific embodiment provided in this specification, the similarity to be processed includes positive similarity to be processed and negative similarity to be processed, and the target expected security protection distance includes positive expected security protection distance;

[0099] Based on the unprocessed similarity, the unprocessed proximity between the candidate security protection distance and the target expected security protection distance is determined, including:

[0100] Calculate the fusion similarity based on the positive similarity to be processed and the negative similarity to be processed;

[0101] Based on the negative similarity to be processed and the fusion similarity, the degree of convergence between the candidate security protection distance and the positive expected security protection distance is determined.

[0102] Among them, the fusion similarity specifically refers to the sum of the positive similarity and the negative similarity to be processed.

[0103] Specifically, based on the positive and negative similarities to be processed, the sum of the positive and negative similarities to be processed is calculated to obtain the fused similarity. The ratio between the negative similarity to be processed and the fused similarity is then calculated, and this ratio is determined as the degree of convergence between the candidate security protection distance and the expected positive protection distance.

[0104] The train safety protection distance adjustment method provided in this manual calculates the undetermined safety protection distance under each operating scenario, based on the actual operating scenarios of the target train. Thus, the target safety protection distance of the target train under the superposition of various operating scenarios can be comprehensively calculated based on the undetermined safety protection distance under each operating scenario.

[0105] Step 210: Determine the target safety protection distance of the target train based on the undetermined safety protection distance corresponding to each current operating scenario and the target protection weight corresponding to each current operating scenario, and adjust the current safety protection distance to the target safety protection distance.

[0106] After determining the undetermined safety protection distance for the target train in each current operating scenario, the undetermined safety protection distance can be weighted and calculated by combining the target protection weights corresponding to each current operating scenario, and the target safety protection distance of the target train can be obtained. Then, the current safety protection distance of the target train can be adjusted to the target safety protection distance so that the target train can continue to operate based on the target safety protection distance, thus ensuring the operational safety of the target train.

[0107] The train safety protection distance adjustment method provided in this specification includes: obtaining the current safety protection distance of a target train and a preset attribute distance set; identifying at least one current operating scenario in which the target train is located, and filtering target attribute distance data and target protection weights corresponding to each current operating scenario in the preset attribute distance set according to each current operating scenario in which the target train is located; determining the target expected safety protection distance corresponding to the target train according to the target attribute distance data; determining the undetermined safety protection distance of the target train in each current operating scenario according to the target attribute distance data and the target expected safety protection distance; determining the target safety protection distance of the target train according to the undetermined safety protection distance in each current operating scenario and the target protection weights corresponding to each current operating scenario, and adjusting the current safety protection distance to the target safety protection distance.

[0108] One embodiment of this specification implements a method that, by identifying at least one current operating scenario in which the target train is located, obtains the target protection weight and target attribute distance data corresponding to the current operating scenario, and determines the target expected safety protection distance of the target train in various operating environments based on the different target protection weights and target attribute distance data corresponding to different current operating scenarios. Then, based on the target expected safety protection distance, the adjusted target safety protection distance of the target train is determined so that the target train can operate based on the target safety protection distance in subsequent operations. This method combines multiple operating environments in which the target train is located to determine the target safety protection distance that needs adjustment, achieving dynamic management of the target train's safety protection distance, improving the accuracy and reliability of the determined target safety protection distance, and enhancing the safety of the target train's operation.

[0109] The following is in conjunction with the appendix Figure 3 The method for adjusting the train safety protection distance is further explained below. Figure 3 This specification illustrates a flowchart of a train safety protection distance adjustment method according to an embodiment, which specifically includes the following steps:

[0110] Step 302: Obtain the current safe protection distance and preset attribute distance set of the target train.

[0111] Step 304: Identify the train attribute information of the target train, and generate the attribute identification result of the target train based on the train attribute information.

[0112] Step 306: Identify the current operating environment of the target train and generate the environment identification result of the target train based on the current operating environment.

[0113] Step 308: Based on the attribute recognition results and the environment recognition results, determine at least one current operating scenario of the target train.

[0114] Step 310: Based on the current operating scenarios of the target train, filter the target attribute distance data and the target protection weight corresponding to each current operating scenario from the preset attribute distance set.

[0115] Step 312: Determine at least one preset protection dimension and the number of trains running on the line corresponding to the target train, and construct the protection distance matrix corresponding to the target train in each current operating scenario based on each preset protection dimension, the number of trains running, and the target attribute distance data.

[0116] Step 314: Determine the positive expected safety protection distance and the negative expected safety protection distance based on each protection distance matrix.

[0117] Step 316: Determine the protection distance matrix to be processed in each protection distance matrix, wherein the protection distance matrix to be processed is any one of the protection distance matrices.

[0118] Step 318: Input the protection distance matrix to be processed into the multi-attribute decision model to obtain at least one safety protection distance to be processed corresponding to the target train in the operation scenario to be processed.

[0119] Step 320: Determine a candidate safety protection distance from among the safety protection distances to be processed, wherein the candidate safety protection distance is any one of the safety protection distances to be processed.

[0120] Step 322: Calculate the unprocessed positive similarity between the candidate security protection distance and the positive expected security protection distance, and calculate the unprocessed negative similarity between the candidate security protection distance and the negative expected security protection distance.

[0121] Step 324: Calculate the fusion similarity based on the positive similarity to be processed and the negative similarity to be processed.

[0122] Step 326: Determine the degree of convergence between the candidate security protection distance and the positive expected security protection distance based on the negative similarity to be processed and the fusion similarity.

[0123] Step 328: Based on the approach degree to be processed, determine the undetermined safety protection distance of the target train in the operating scenario to be processed.

[0124] Step 330: Determine the target safety protection distance of the target train based on the undetermined safety protection distance corresponding to each current operating scenario and the target protection weight corresponding to each current operating scenario.

[0125] Step 332: Adjust the current safety protection distance to the target safety protection distance.

[0126] One embodiment of this specification implements a method that, by identifying at least one current operating scenario in which the target train is located, obtains the target protection weight and target attribute distance data corresponding to the current operating scenario, and determines the target expected safety protection distance of the target train in various operating environments based on the different target protection weights and target attribute distance data corresponding to different current operating scenarios. Then, based on the target expected safety protection distance, the adjusted target safety protection distance of the target train is determined so that the target train can operate based on the target safety protection distance in subsequent operations. This method combines multiple operating environments in which the target train is located to determine the target safety protection distance that needs adjustment, achieving dynamic management of the target train's safety protection distance, improving the accuracy and reliability of the determined target safety protection distance, and enhancing the safety of the target train's operation.

[0127] Corresponding to the above method embodiments, this specification also provides embodiments of a train safety protection distance adjustment device. Figure 4 A schematic diagram of a train safety protection distance adjustment device according to one embodiment of this specification is shown. Figure 4 As shown, the device includes:

[0128] The acquisition module 402 is configured to acquire the current safety protection distance and preset attribute distance set of the target train;

[0129] The identification module 404 is configured to identify at least one current operating scenario in which the target train is located, and to filter target attribute distance data and target protection weights corresponding to each current operating scenario in the preset attribute distance set according to each current operating scenario in which the target train is located;

[0130] The first determining module 406 is configured to determine the target expected safety protection distance corresponding to the target train based on the target attribute distance data.

[0131] The second determining module 408 is configured to determine the undetermined safety protection distance of the target train in each current operating scenario based on the target attribute distance data and the target expected safety protection distance;

[0132] The adjustment module 410 is configured to determine the target safety protection distance of the target train based on the undetermined safety protection distance corresponding to each current operating scenario and the target protection weight corresponding to each current operating scenario, and adjust the current safety protection distance to the target safety protection distance.

[0133] Optionally, the identification module 404 is further configured to:

[0134] Identify the train attribute information of the target train, and generate the attribute identification result of the target train based on the train attribute information;

[0135] Identify the current operating environment of the target train, and generate an environment identification result for the target train based on the current operating environment;

[0136] Based on the attribute recognition results and the environment recognition results, the current operating scenario of the target train is determined.

[0137] Optionally, the identification module 404 is further configured to:

[0138] If the attribute identification result shows an anomaly and the environment identification result does not show an anomaly, the current operating scenario of the target train is determined to be the first abnormal operating scenario;

[0139] If the attribute identification result does not show any abnormality, but the environment identification result shows an abnormality, the current operating scenario of the target train is determined to be the second abnormal operating scenario;

[0140] If the attribute identification result shows an anomaly and the environment identification result shows an anomaly, the current operating scenario of the target train is determined to be the first abnormal operating scenario and the second abnormal operating scenario.

[0141] If the attribute identification results do not show any abnormalities and the environment identification results do not show any abnormalities, the current operating scenario of the target train is determined to be a standard operating scenario.

[0142] Optionally, the first determining module 406 is further configured to:

[0143] Determine at least one preset protection dimension corresponding to the target train and the number of trains operating on the line;

[0144] Based on each preset protection dimension, the number of trains in operation, and the target attribute distance data, a protection distance matrix is ​​constructed for the target train in each current operating scenario.

[0145] Based on each protection distance matrix, determine the target's expected safe protection distance.

[0146] Optionally, the second determining module 408 is further configured to:

[0147] Determine the protection distance matrix to be processed from each protection distance matrix, wherein the protection distance matrix to be processed is any one of the protection distance matrices;

[0148] Input the protection distance matrix to be processed into the multi-attribute decision model to obtain at least one safety protection distance to be processed for the target train in the operation scenario to be processed.

[0149] Based on the target expected safety protection distance, determine the undetermined safety protection distance of the target train in the undetermined operating scenario from among the various undetermined safety protection distances.

[0150] Optionally, the second determining module 408 is further configured to:

[0151] Candidate safety protection distances are determined from among the safety protection distances to be processed, wherein the candidate safety protection distance is any one of the safety protection distances to be processed;

[0152] Calculate the unprocessed similarity between the candidate security protection distance and the target expected security protection distance;

[0153] Based on the required similarity, determine the required proximity between the candidate security protection distance and the target expected security protection distance;

[0154] Based on the approach degree to be processed, the undetermined safety protection distance of the target train in the operating scenario to be processed is determined.

[0155] Optionally, the similarity to be processed includes positive similarity to be processed and negative similarity to be processed, and the target expected security protection distance includes positive expected security protection distance;

[0156] The second determining module 408 is further configured as follows:

[0157] Calculate the fusion similarity based on the positive similarity to be processed and the negative similarity to be processed;

[0158] Based on the negative similarity to be processed and the fusion similarity, the degree of convergence between the candidate security protection distance and the positive expected security protection distance is determined.

[0159] The train safety protection distance adjustment device provided in this specification includes: an acquisition module configured to acquire the current safety protection distance of a target train and a preset attribute distance set; an identification module configured to identify at least one current operating scenario in which the target train is located, and to filter target attribute distance data and target protection weights corresponding to each current operating scenario in the preset attribute distance set according to each current operating scenario in which the target train is located; a first determination module configured to determine the target expected safety protection distance corresponding to the target train according to the target attribute distance data; a second determination module configured to determine the undetermined safety protection distance of the target train in each current operating scenario according to the target attribute distance data and the target expected safety protection distance; and an adjustment module configured to determine the target safety protection distance of the target train according to the undetermined safety protection distance corresponding to each current operating scenario and the target protection weights corresponding to each current operating scenario, and to adjust the current safety protection distance to the target safety protection distance.

[0160] One embodiment of this specification implements a method that, by identifying at least one current operating scenario in which the target train is located, obtains the target protection weight and target attribute distance data corresponding to the current operating scenario, and determines the target expected safety protection distance of the target train in various operating environments based on the different target protection weights and target attribute distance data corresponding to different current operating scenarios. Then, based on the target expected safety protection distance, the adjusted target safety protection distance of the target train is determined so that the target train can operate based on the target safety protection distance in subsequent operations. This method combines multiple operating environments in which the target train is located to determine the target safety protection distance that needs adjustment, achieving dynamic management of the target train's safety protection distance, improving the accuracy and reliability of the determined target safety protection distance, and enhancing the safety of the target train's operation.

[0161] The above is a schematic scheme of a train safety protection distance adjustment device according to this embodiment. It should be noted that the technical solution of this train safety protection distance adjustment device and the technical solution of the train safety protection distance adjustment method described above belong to the same concept. For details not described in detail in the technical solution of the train safety protection distance adjustment device, please refer to the description of the technical solution of the train safety protection distance adjustment method described above.

[0162] Figure 5 A structural block diagram of a computing device 500 according to an embodiment of this specification is shown. The components of the computing device 500 include, but are not limited to, a memory 510 and a processor 520. The processor 520 is connected to the memory 510 via a bus 530, and a database 550 is used to store data.

[0163] The computing device 500 also includes an access device 540, which enables the computing device 500 to communicate via one or more networks 560. Examples of these networks include Public Switched Telephone Network (PSTN), Local Area Network (LAN), Wide Area Network (WAN), Personal Area Network (PAN), or combinations of communication networks such as the Internet. The access device 540 may include one or more of any type of wired or wireless network interface (e.g., a network interface card (NIC)), such as an IEEE 802.11 Wireless Local Area Network (WLAN) wireless interface, a Wi-MAX (Worldwide Interoperability for Microwave Access) interface, an Ethernet interface, a Universal Serial Bus (USB) interface, a cellular network interface, a Bluetooth interface, a Near Field Communication (NFC) interface, and so on.

[0164] In one embodiment of this specification, the above-described components of the computing device 500 and Figure 5 Other components, not shown, can also be connected to each other, for example, via a bus. It should be understood that... Figure 5 The block diagram of the computing device shown is for illustrative purposes only and is not intended to limit the scope of this specification. Those skilled in the art can add or replace other components as needed.

[0165] The computing device 500 can be any type of stationary or mobile computing device, including mobile computers or mobile computing devices (e.g., tablet computers, personal digital assistants, laptop computers, notebook computers, netbooks, etc.), mobile phones (e.g., smartphones), wearable computing devices (e.g., smartwatches, smart glasses, etc.) or other types of mobile devices, or stationary computing devices such as desktop computers or personal computers (PCs). The computing device 500 can also be a mobile or stationary server.

[0166] The processor 520 implements the steps of the train safety protection distance adjustment method when executing the computer program / instruction.

[0167] The above is a schematic representation of a computing device according to this embodiment. It should be noted that the technical solution of this computing device and the technical solution of the train safety protection distance adjustment method described above belong to the same concept. Details not described in detail in the technical solution of the computing device can be found in the description of the technical solution of the train safety protection distance adjustment method described above.

[0168] An embodiment of this specification also provides a computer-readable storage medium storing a computer program / instructions that, when executed by a processor, implement the steps of the train safety protection distance adjustment method as described above.

[0169] The above is an illustrative scheme of a computer-readable storage medium according to this embodiment. It should be noted that the technical solution of this storage medium belongs to the same concept as the technical solution of the train safety protection distance adjustment method described above. Details not described in detail in the technical solution of the storage medium can be found in the description of the technical solution of the train safety protection distance adjustment method described above.

[0170] An embodiment of this specification also provides a computer program product, including a computer program / instructions that, when executed by a processor, implement the steps of the above-described train safety protection distance adjustment method.

[0171] The above is an illustrative scheme of a computer program product according to this embodiment. It should be noted that the technical solution of this computer program product and the technical solution of the above-described train safety protection distance adjustment method belong to the same concept. For details not described in detail in the technical solution of the computer program product, please refer to the description of the technical solution of the above-described train safety protection distance adjustment method.

[0172] The foregoing has described specific embodiments of this specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims may be performed in a different order than that shown in the embodiments and may still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require the specific or sequential order shown to achieve the desired result. In some embodiments, multitasking and parallel processing are possible or may be advantageous.

[0173] The computer program / instructions include computer program code, which may be in the form of source code, object code, executable file, or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording media, USB flash drive, portable hard drive, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc.

[0174] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this specification is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this specification. Furthermore, those skilled in the art should also understand that the embodiments described in this specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this specification.

[0175] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0176] The preferred embodiments disclosed above are merely illustrative of this specification. The optional embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. These embodiments have been selected and specifically described in this specification to better explain the principles and practical applications of this specification, thereby enabling those skilled in the art to better understand and utilize this specification. This specification is limited only by the claims and their full scope and equivalents.

Claims

1. A method for adjusting the safety protection distance of a train, characterized in that, include: Obtain the current safety protection distance and preset attribute distance set of the target train. The preset attribute distance set includes the preset safety protection distance and preset protection weight corresponding to different operating scenarios. Identify at least one current operating scenario in which the target train is located, and based on each current operating scenario in which the target train is located, filter target attribute distance data and target protection weights corresponding to each current operating scenario from the preset attribute distance set; Determine at least one preset protection dimension and the number of trains operating on the line corresponding to the target train; construct a protection distance matrix corresponding to the target train in each current operating scenario based on each preset protection dimension, the number of trains operating, and the target attribute distance data; determine the target expected safety protection distance based on each protection distance matrix, wherein the target expected safety protection distance includes a positive expected safety protection distance and a negative expected safety protection distance, which are obtained by solving each protection distance matrix using the cosine method; A protection distance matrix to be processed is determined from each protection distance matrix, wherein the protection distance matrix to be processed is any one of the protection distance matrices; the protection distance matrix to be processed is input into a multi-attribute decision model to obtain at least one safety protection distance to be processed corresponding to the target train in the operation scenario to be processed; based on the target expected safety protection distance, the safety protection distance to be determined of the target train in the operation scenario to be processed is determined from each safety protection distance to be processed. Based on the undetermined safety protection distance corresponding to each current operating scenario and the target protection weight corresponding to each current operating scenario, the target safety protection distance of the target train is determined, and the current safety protection distance is adjusted to the target safety protection distance.

2. The method as described in claim 1, characterized in that, Identifying at least one current operating scenario in which the target train is located, including: Identify the train attribute information of the target train, and generate the attribute identification result of the target train based on the train attribute information; Identify the current operating environment of the target train, and generate an environment identification result for the target train based on the current operating environment; Based on the attribute recognition results and the environment recognition results, the current operating scenario of the target train is determined.

3. The method as described in claim 2, characterized in that, Based on the attribute recognition results and the environment recognition results, the current operating scenario of the target train is determined, including: If the attribute identification result shows an anomaly and the environment identification result does not show an anomaly, the current operating scenario of the target train is determined to be the first abnormal operating scenario; If the attribute identification result does not show any abnormality, but the environment identification result shows an abnormality, the current operating scenario of the target train is determined to be the second abnormal operating scenario; If the attribute identification result shows an anomaly and the environment identification result shows an anomaly, the current operating scenario of the target train is determined to be the first abnormal operating scenario and the second abnormal operating scenario. If the attribute identification results do not show any abnormalities and the environment identification results do not show any abnormalities, the current operating scenario of the target train is determined to be a standard operating scenario.

4. The method as described in claim 1, characterized in that, Based on the target desired safety protection distance, determine the undetermined safety protection distance of the target train in the undetermined operating scenario from among the various undetermined safety protection distances, including: Candidate safety protection distances are determined from among the safety protection distances to be processed, wherein the candidate safety protection distance is any one of the safety protection distances to be processed; Calculate the unprocessed similarity between the candidate security protection distance and the target expected security protection distance; Based on the required similarity, determine the required proximity between the candidate security protection distance and the target expected security protection distance; Based on the approach degree to be processed, the undetermined safety protection distance of the target train in the operating scenario to be processed is determined.

5. The method as described in claim 4, characterized in that, The similarity to be processed includes positive similarity to be processed and negative similarity to be processed, and the target expected security protection distance includes positive expected security protection distance; Based on the unprocessed similarity, the unprocessed proximity between the candidate security protection distance and the target expected security protection distance is determined, including: Calculate the fusion similarity based on the positive similarity to be processed and the negative similarity to be processed; Based on the negative similarity to be processed and the fusion similarity, the degree of convergence between the candidate security protection distance and the positive expected security protection distance is determined.

6. A train safety protection distance adjustment device, characterized in that, include: The acquisition module is configured to acquire the current safety protection distance and preset attribute distance set of the target train. The preset attribute distance set includes preset safety protection distance and preset protection weight corresponding to different operating scenarios. The identification module is configured to identify at least one current operating scenario in which the target train is located, and to filter target attribute distance data and target protection weights corresponding to each current operating scenario in the preset attribute distance set according to each current operating scenario in which the target train is located; The first determining module is configured to determine at least one preset protection dimension and the number of trains operating on the line corresponding to the target train; construct a protection distance matrix corresponding to the target train in each current operating scenario based on each preset protection dimension, the number of trains operating, and the target attribute distance data; and determine the target expected safety protection distance based on each protection distance matrix, wherein the target expected safety protection distance includes a positive expected safety protection distance and a negative expected safety protection distance, which are obtained by solving each protection distance matrix using the cosine method. The second determining module is configured to determine a protection distance matrix to be processed from each protection distance matrix, wherein the protection distance matrix to be processed is any one of the protection distance matrices; input the protection distance matrix to be processed into a multi-attribute decision model to obtain at least one safety protection distance to be processed corresponding to the target train in the operation scenario to be processed; and determine the safety protection distance to be determined of the target train in the operation scenario to be processed from each safety protection distance to be processed according to the target expected safety protection distance. The adjustment module is configured to determine the target safety protection distance of the target train based on the undetermined safety protection distance corresponding to each current operating scenario and the target protection weight corresponding to each current operating scenario, and adjust the current safety protection distance to the target safety protection distance.

7. 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, characterized in that, when the computer programs / instructions are executed by the processor, they implement the steps of the method according to any one of claims 1-5.

8. A computer-readable storage medium storing a computer program / instructions, characterized in that, When the computer program / instructions are executed by the processor, they implement the steps of the method according to any one of claims 1-5.

9. A computer program product comprising a computer program / instructions, characterized in that, When the computer program / instructions are executed by the processor, they implement the steps of the method according to any one of claims 1-5.

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