A method, device and storage medium for optimizing a navigation path

Abstract

The application discloses a kind of optimization method, device and equipment of navigation path and storage medium, the method includes: obtaining the navigation path of target vehicle in target area and vehicle material information;Determine and target vehicle has the potential risk target of meeting possibility;Whether the navigation path is optimized based on vehicle material information and potential risk target judges;If yes, then the navigation path is optimized, it is considered that in path planning process, target vehicle loads material and with its potential risk target of meeting possibility to reasonably optimize driving path, it is favorable to improve the efficiency of vehicle operation in garden, and it can avoid its load material and other chemicals produce chemical reaction and produce harmful influence, it is favorable to reduce the probability of safety accident caused by contact with other reactants when target vehicle exists goods leakage, improve the safety of chemical vehicle in target area.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, in particular to a navigation path optimization method and device, equipment and storage medium. BACKGROUND

[0002] In a chemical industry park, a plurality of flammable, explosive, toxic and harmful chemical enterprises are generally gathered. There are many kinds of goods produced by these enterprises, and some of them have the possibility of self-ignition, self-explosion and mutual reaction under high temperature / high pressure. Therefore, the chemical vehicles performing tasks in the park become mobile risk sources, which can cause great safety hazards to surrounding vehicles. Due to the lack of navigation guidance, the vehicles in the park have low operation efficiency, which can cause congestion and exist great safety hazards. SUMMARY

[0003] The embodiments of the present application provide a navigation path optimization method, device, equipment and storage medium, which can effectively improve the above problems.

[0004] To solve the above technical problems, the present application provides a navigation path optimization method, which comprises:

[0005] obtaining a navigation path of a target vehicle in a target area and vehicle material information;

[0006] determining a potential risk target that has a possibility of meeting with the target vehicle; wherein the potential risk target comprises a chemical storage area and / or a chemical vehicle loaded with chemicals;

[0007] judging whether to optimize the navigation path based on the vehicle material information and the potential risk target;

[0008] if yes, optimizing the navigation path.

[0009] Preferably, the determination of the potential risk target that has a possibility of meeting with the target vehicle specifically comprises:

[0010] obtaining position distribution information of at least part of the chemical storage areas in the target area;

[0011] determining a chemical storage area existing on the navigation path in the position distribution information, and determining the chemical storage area existing on the navigation path as the potential risk target.

[0012] Preferably, the determination of the potential risk target that has a possibility of meeting with the target vehicle specifically comprises:

[0013] obtaining driving information of an existing vehicle in the target area;

[0014] determining a chemical vehicle having a possibility of meeting the target vehicle based on the driving information of the existing vehicle, and determining the chemical vehicle having the possibility of meeting the target vehicle as the potential risk target.

[0015] Preferably, the determining whether to optimize the navigation path based on the vehicle material information and the potential risk target specifically comprises:

[0016] performing a safety analysis on the navigation path based on the vehicle material information and the potential risk target, and determining to optimize the navigation path when the analysis result of the safety analysis is unsafe.

[0017] Preferably, the determining whether to optimize the navigation path based on the vehicle material information and the potential risk target specifically comprises:

[0018] performing a safety analysis on the navigation path based on the vehicle material information and the potential risk target, and determining to optimize the navigation path when the analysis result of the safety analysis is unsafe.

[0019] Preferably, the performing a safety analysis on the navigation path based on the vehicle material information and the potential risk target specifically comprises one or more of the following:

[0020] determining whether the material carried by the target vehicle and the chemical contained in the potential risk target have a chemical reaction; if yes, it indicates that the navigation path is unsafe;

[0021] determining whether the chemical reaction between the material carried by the target vehicle and the chemical contained in the potential risk target has a harmful effect; if yes, it indicates that the navigation path is unsafe; wherein the harmful effect comprises one of the following: harmful substances generated by the reaction exceeding the standard, material consumed by the reaction exceeding the standard, temperature change caused by the reaction affecting the material carried by the target vehicle, temperature change caused by the reaction affecting the chemical contained in the potential risk target;

[0022] determining whether the chemical reaction between the material carried by the target vehicle and the chemical contained in the potential risk target meets the reaction condition requirement of the harmful effect; if yes, it indicates that the navigation path is unsafe.

[0023] Preferably, the optimizing the navigation path specifically comprises:

[0024] determining the position information of the potential risk target in the target area;

[0025] According to the current location information and the destination location information of the target vehicle, a navigation path is re-planned in a target area excluding the location information of the potential risk target.

[0026] Preferably, the optimization of the navigation path specifically comprises:

[0027] determining a required speed at which the target vehicle and the potential risk target meet without causing harmful effects;

[0028] determining whether the target vehicle can meet the potential risk target at the required speed according to road conditions and / or conditions of the target vehicle itself at the meeting;

[0029] if yes, prompting the target vehicle to meet the potential risk target at the required speed;

[0030] if no, re-planning the navigation path to avoid meeting the potential risk target.

[0031] Preferably, the optimization of the navigation path specifically comprises:

[0032] obtaining a hypothetical speed interval of the target vehicle;

[0033] determining a time range required for the target vehicle to meet the potential risk target at the preset hypothetical speed;

[0034] determining whether harmful effects are caused by a chemical reaction between the material carried by the target vehicle and the chemical contained in the potential risk target within the time range;

[0035] if yes, modifying the preset hypothetical speed and repeating the above process until a safe speed corresponding to no harmful effects is obtained;

[0036] prompting the target vehicle to meet the potential risk target at the safe speed, or re-planning the navigation path to avoid meeting the potential risk target.

[0037] The application further discloses an optimization device of a navigation path, comprising:

[0038] an obtaining module, configured to obtain a navigation path of a target vehicle in a target area and vehicle material information;

[0039] a determining module, configured to determine a potential risk target that has a possibility of meeting the target vehicle; wherein the potential risk target comprises a chemical storage area and / or a chemical vehicle loaded with chemicals;

[0040] a judging module, configured to judge whether to optimize the navigation path based on the vehicle material information and the potential risk target.

[0041] an optimization module, configured to optimize the navigation path if yes.

[0042] The application discloses a computer readable storage medium, which stores a computer program.

[0043] The application discloses a computer device, which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor.

[0044] The application has the following advantages:

[0045] The navigation path optimization method provided by the application can reasonably optimize the driving path of each vehicle carrying chemicals by taking the vehicle material information of the vehicle and potential risk targets that can meet the vehicle as reference factors, thereby improving the vehicle operation efficiency in the park, avoiding harmful effects caused by chemical reactions between the chemicals carried by the vehicle and other chemicals, and improving the vehicle carrying safety.

[0046] The above description is only a summary of the technical scheme of the application, in order to more clearly understand the technical means of the application, the content of the specification can be implemented, and in order to make the above and other purposes, characteristics and advantages of the application more obvious and easy to understand, the following specific embodiments of the application are described. BRIEF DESCRIPTION OF DRAWINGS

[0047] Various other advantages and benefits will become apparent to those of ordinary skill in the art, upon reading the following detailed description of the preferred embodiments. The accompanying drawings are intended to depict only preferred embodiments of the application, and therefore should not be considered to narrow the scope of the present application in any way. Rather, the scope of the application is to be determined solely by the appended claims. Furthermore, the drawings are not necessarily drawn to scale.

[0048] Figure 1 A flow chart of the navigation path optimization method according to one embodiment of the application is shown;

[0049] Figure 2 A schematic diagram of the navigation path optimization device according to one embodiment of the application is shown. DETAILED DESCRIPTION

[0050] Exemplary embodiments of the present disclosure will be described in greater detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it is understood that the present disclosure can be embodied in various forms without being limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be thoroughly and completely understood, and will fully convey the scope of the present disclosure to those skilled in the art.

[0051] At present, most of the goods produced in the chemical industrial park are chemicals, which are usually transported in and out of the chemical industrial park by vehicles, and the vehicles generally rely on navigation guidance to travel in the park. If the navigation guidance is improper, it is easy to cause congestion of vehicles carrying chemicals, which may lead to mutual reaction of chemicals with chemical reaction relationship, causing harmful effects, easily causing safety accidents. Therefore, for the safety problem in the chemical industrial park, the embodiments of the present specification provide a navigation path optimization method, which uses the vehicle material information of the vehicle and the potential risk target with the possibility of meeting as reference factors to reasonably optimize the driving path for each vehicle carrying chemicals, which is beneficial to improve the vehicle operation efficiency in the park, and can avoid the harmful effects caused by the chemical reaction between the chemicals carried by the vehicle and other chemicals, and can improve the vehicle carrying safety.

[0052] The navigation path optimization method provided by the embodiments of the present application will be described below with reference to the accompanying drawings. Figure 1 The navigation path optimization method provided by the embodiments of the present application will be described below with reference to the accompanying drawings.

[0053] Step 11, obtaining the navigation path of the target vehicle in the target area and the vehicle material information.

[0054] In the present embodiment, the target vehicle refers to a chemical carrying vehicle for path planning in the target area, and any chemical carrying vehicle can be the target vehicle of the present embodiment, and the navigation path optimization method disclosed in the present embodiment is implemented. The target area refers to an area where various chemical product enterprises and / or chemical vehicles are concentrated, for example, a chemical industrial park. In order to facilitate understanding, the embodiments of the present specification mainly take the chemical industrial park as an example to optimize the navigation path.

[0055] The target vehicle usually relies on a navigation path to guide driving in the chemical industrial park, and the navigation path exists in a navigation road network. In the embodiment, the navigation road network information is constructed based on road information in the chemical industrial park. Specifically, after the road information is acquired, a road topology structure can be established according to the road information, the road topology structure is segmented, and a navigation road network for route navigation is generated. The road information can include but is not limited to the following information: road direction information, road type (one-way or two-way lane), speed limit information, no-entry sign information, etc. The navigation path of the embodiment is a path specially planned for the target vehicle to reach the destination position. The vehicle is equipped with sensors to collect vehicle speed, temperature in the vehicle cabin, vehicle position information, etc., and combined with license plate, driver, and types of transported goods, and combined with the temperature of each factory in the park, the position, speed, and temperature of all vehicles, and the navigation road network, etc. The navigation path can be an initial planned path planned for the target vehicle to travel, can be a planned path being used in the travel, or can be an optimized planned path. The previous optimization of the path change according to the potential risk target on the last navigation path changes the last navigation path to the current navigation path, and the current navigation path is optimized again according to the potential risk target, that is, the optimization of the navigation path of the embodiment is dynamic and is real-time optimization and update. The vehicle material information includes vehicle speed, vehicle temperature, vehicle position, license plate, driver, types of transported materials, material loading method, material itself temperature, material environment temperature, material itself weight, material itself concentration, and environmental material concentration if the material volatilizes, whether the material has a corresponding catalyst, etc. Any vehicle material information can be collected by sensors installed on the vehicle.

[0056] Step 12, determining a potential risk target that has a possibility of meeting the target vehicle.

[0057] The potential risk target includes a chemical storage area and / or a chemical vehicle loaded with chemicals, etc. The chemicals contained therein have a risk of chemical reaction with the material carried by the target vehicle. Further, the chemical storage area that has a possibility of meeting the target vehicle means that the target vehicle can pass through the chemical storage area. The chemical vehicle that has a possibility of meeting the target vehicle includes two types. One type is a chemical vehicle that has a possibility of overtaking each other when driving in the same direction. The other type is a chemical vehicle that has a possibility of meeting when driving in opposite directions.

[0058] As an optional embodiment, in order to accurately determine the potential risk target, different determination manners can be used for different objects. For the chemical storage area, since it is generally in a static state, the position distribution information of at least part of the chemical storage area in the target area can be obtained; the chemical storage area existing on the navigation path is determined in the position distribution information, and the chemical storage area existing on the navigation path is determined as the potential risk target. If a chemical industrial park is taken as an example, the positions of at least part of the chemical storage area in the chemical industrial park are determined, and then the chemical storage area located on the navigation path is determined.

[0059] For the chemical vehicle, since the chemical vehicle is basically in a running state, and the chemical vehicle on the navigation path has a possibility of meeting the target vehicle, the driving information of the existing vehicle in the target area is obtained; the chemical vehicle having a possibility of meeting the target vehicle is determined based on the driving information of the existing vehicle, and the chemical vehicle having a possibility of meeting the target vehicle is determined as the potential risk target. Specifically, the driving information includes but is not limited to the driving path, the driving speed, the current position, the vehicle temperature and the like. Therefore, the meeting possibility of the target vehicle and the chemical vehicle can be determined according to the above driving information. For example, the target vehicle A calculates the time of reaching a certain position point 1 according to the current position, the current time, the current navigation path and the vehicle speed and the like. According to the driving information of the vehicle B loaded with chemicals, the time of reaching the certain position point 1 can also be calculated, and if the times are close (for example, the interval is 1 minute), it means that the vehicle B is likely to meet the vehicle A, and therefore the vehicle B is determined as the potential risk target.

[0060] As an optional embodiment, the potential risk target of the embodiment refers to the chemical vehicle having a possibility of meeting the target vehicle and the chemical contained in the chemical vehicle having a chemical reaction relationship with the material loaded in the target vehicle. If the chemical loaded in the vehicle (or the chemical contained in the chemical storage area) does not have a chemical reaction with the material loaded in the target vehicle, even if the chemical vehicle can successfully meet the target vehicle, no safety accident will occur. Therefore, in order to accurately determine the potential risk target, all chemical types existing on the navigation path of the target vehicle can be determined, and the potential risk target can be determined from all chemical types according to the chemical reaction relationship between the material type loaded in the target vehicle and all chemical types. Alternatively, all chemical types existing in the target area can be determined based on the material type loaded in the target vehicle, and the potential risk target can be determined according to the position information of all chemical types in the target area. One or more embodiments for determining the potential risk target can be used in combination, and details are not described herein.

[0061] Step 13, determining whether to optimize the navigation path based on the vehicle material information and the potential risk target.

[0062] In the embodiment, the safety of the navigation path is analyzed based on the vehicle material information and the potential risk target, and the navigation path is optimized when the analysis result of the safety analysis is unsafe.

[0063] The safety analysis can be analyzed singly or in combination to obtain the analysis result. If several combined analyses are performed, the navigation path is optimized when all analysis results are unsafe.

[0064] Specifically, the safety analysis specifically includes one or more of the following ways:

[0065] As an optional analysis method, it is judged whether the chemicals contained in the target vehicle material and the potential risk target react; if so, the navigation path is unsafe. Specifically, the navigation path is generally composed of multiple roads, so there is usually one or more potential risk targets on the navigation path. If the chemicals contained in the potential risk target react with the material carried by the target vehicle, the location of the potential risk target is unsafe.

[0066] As an optional analysis method, it is judged whether the chemicals contained in the target vehicle material and the potential risk target react to produce harmful effects; if so, the navigation path is unsafe. In the embodiment, the harmful effects include one of the following: the harmful substances generated by the reaction exceed the standard, the consumed material exceeds the standard, the temperature change caused by the reaction affects the material carried by the target vehicle, and the temperature change caused by the reaction affects the chemicals contained in the potential risk target.

[0067] As an optional analysis method, it is judged whether the chemicals contained in the target vehicle material and the potential risk target meet the reaction condition requirements for producing harmful effects; if so, the navigation path is unsafe. Specifically, it can be judged whether the temperature (material temperature, vehicle body temperature) when the target vehicle and the potential risk target meet, the required temperature for the reaction, the catalyst, the relative distance between the target vehicle and the potential risk target, the material concentration around the target vehicle, the material loading method, etc. meet the reaction condition requirements, for example, the reaction condition requirements include the material concentration value and the material temperature value. If the material concentration and the material temperature when the target vehicle meets meet the requirements, it means that it meets the reaction condition requirements.

[0068] The above one or more security analysis methods can be analyzed alternatively or in a progressive relationship. For example, after determining whether the chemical reaction occurs between the material carried by the target vehicle and the chemical contained in the potential risk target, if the chemical reaction occurs, it is further determined whether the chemical reaction between the material carried by the target vehicle and the chemical contained in the potential risk target produces harmful effects, and if the harmful effects are produced, the navigation path is unsafe. For another example, after determining whether the chemical reaction occurs between the material carried by the target vehicle and the chemical contained in the potential risk target, if the chemical reaction occurs, it is further determined whether the chemical reaction between the material carried by the target vehicle and the chemical contained in the potential risk target produces harmful effects, and if the harmful effects are produced, the navigation path is unsafe. In a specific implementation, the analysis can be performed alternatively or in combination according to actual conditions.

[0069] Step 14: If yes, the navigation path is optimized.

[0070] In the optimization process, the vehicle material information and the potential risk target in the target area can be referred to for optimizing the navigation information.

[0071] In a specific implementation, if the potential risk target carries a chemical that can react with the material carried by the target vehicle, once the material carried by the target vehicle leaks, it is easy to contact and react with the chemical carried by the potential risk target, thereby causing a safety accident. Therefore, when optimizing the navigation information, the position of the potential risk target can be avoided: the position information of the potential risk target in the navigation road network corresponding to the target area is determined; and the navigation path is re-planned in the target area excluding the position information of the potential risk target according to the current position information and the destination position information of the target vehicle. In this way, the potential risk target can be effectively avoided, which is beneficial to improve the safety of vehicle transportation.

[0072] For example, assuming that the target vehicle carries chemical A and the chemical storage area carries chemical B, and the two chemicals can react with each other. The road where the two chemicals are located is the road to be excluded when the target vehicle optimizes the path, and the path needs to be re-planned in the chemical industrial park after excluding the road. For another example, assuming that the target vehicle carries chemical A and drives on road 1. The dangerous goods vehicle carries chemical B and drives on road 2, and after driving straight on road 1, it enters road 2. Since the two chemicals can react with each other, and the target vehicle is likely to meet the dangerous goods vehicle on road 2, the path needs to be re-planned in the navigation road network excluding road 2, for example, turning left into road 3 after driving straight on road 1.

[0073] In implementation, if the potential risk target is loaded with chemicals which can react with the materials carried by the target vehicle, and the reaction produces harmful effects, a safety accident can be caused. Therefore, when optimizing the navigation information, the required vehicle speed at which the target vehicle and the potential risk target meet without producing harmful effects is determined. In implementation, the reaction conditions which produce harmful effects, such as reaction concentration, reaction time (i.e. the time of meeting), etc. are determined first, and the vehicle speed is deduced therefrom. According to the road condition and / or the condition of the target vehicle at the time of meeting, it is determined whether the target vehicle can meet the potential risk target at the required vehicle speed; if yes, a prompt is given to meet the potential risk target at the required vehicle speed; if not, the navigation path is re-planned to avoid meeting the potential risk target, such as avoiding the position of the potential risk target. The specific implementation can refer to the foregoing embodiments, and will not be described here again.

[0074] For example, the materials in area A can react with the materials carried by the vehicle to produce toxic substances, but the amount of toxic substances produced reaches 100 grams to be dangerous. Based on the current reaction conditions, only when the vehicle stays in area A for 5 minutes, more than 100 grams of toxic substances can be produced. According to the route determination, if the vehicle travels at a speed of 80 Km / h, it can pass through area A in 5 minutes, and therefore the path can not be changed, but only the vehicle speed prompt is increased. If the vehicle needs to travel at a speed of 100 Km / h to pass through area A in 5 minutes, the speed limit or road condition, etc. are considered to determine whether the vehicle can travel at a speed of 100 Km / h in area A. If yes, only the vehicle speed prompt is increased; if not, another route is selected. In this way, the harmful effects caused by meeting the potential risk target can be effectively avoided, and the safety of carrying of the vehicle is improved.

[0075] In the implementation, since certain reaction conditions are required to cause harmful effects, the time range required for the target vehicle to meet the assumed preset speed and the potential risk target can be determined when optimizing the navigation path. The assumed preset speed can be set arbitrarily or according to the average speed. The time required for the meeting can be determined according to the assumed preset speed. For example, if the vehicle travels at a speed of 80 Km / h, it can pass through the A area in 5 minutes. It is determined whether the chemical reaction between the materials carried by the target vehicle and the chemicals contained in the potential risk target within the time range causes harmful effects. Specifically, it is determined whether harmful effects are caused in combination with other reaction conditions (e.g., material types, temperature, presence of catalysts, material concentration of the environment, etc.). If so, the assumed preset speed is modified and the above process is repeated. Specifically, the time range is determined again according to the modified speed, and it is determined again whether the chemical reaction between the materials carried by the target vehicle and the chemicals contained in the potential risk target within the time range causes harmful effects. The process is repeated until a safe speed corresponding to no harmful effects is obtained. Further, it is prompted to meet the potential risk target at the safe speed or a speed greater than the safe speed, because the greater the speed, the smaller the time range, and the lower the possibility of harmful effects. Alternatively, the navigation path is re-planned to avoid meeting the potential risk target. For example, the navigation path is re-planned when the target vehicle cannot reach the safe speed. In this way, harmful effects caused by meeting the potential risk target can be effectively avoided, and the vehicle carrying safety can be improved.

[0076] For example, the materials in the A area can react with the materials of the vehicle to produce toxic substances, but the amount of toxic substances produced is 100 grams to be dangerous. The vehicle can arbitrarily assume a speed to predict it. When traveling at a speed of 60 Km / h or below, in combination with the current reaction conditions, the amount of toxic substances produced is more than 100 grams, and when traveling at a speed of 61 Km / h or above, the amount of toxic substances produced is less than 100 grams. Therefore, the vehicle can travel at a speed of 61 Km / h or above, or reselect another route.

[0077] As an optional embodiment, since the distribution of the potential risk target can change over time, in order to improve the accuracy of path optimization and improve the vehicle carrying safety, the embodiment can adopt a real-time path optimization manner. For example, the above path optimization manner is triggered to be executed every preset time or when the target vehicle reaches a specified location. Of course, other real-time path planning manners can also be used as needed.

[0078] In summary, the driving path determination method provided by the embodiments of the present specification realizes intelligent path planning of each chemical vehicle (including the target vehicle) in a target area, such as a chemical enterprise park, and is conducive to improving the operation efficiency of the chemical vehicle in the target area. Moreover, in the path planning process, the driving path is reasonably optimized by taking into account the target vehicle loaded material and potential risk targets that have the possibility of meeting the target vehicle, which is conducive to improving the operation efficiency of the vehicle in the park and avoiding the chemical loaded by the target vehicle and other chemicals from producing a chemical reaction to produce a harmful effect, thereby reducing the probability of a safety accident caused by contact with other reactants when the target vehicle has a cargo leakage, and improving the safety of the chemical vehicle in the target area.

[0079] Based on the same inventive concept, the embodiments of the present specification also provide an optimization device for a navigation path, referring to Figure 2 , comprising:

[0080] An obtaining module 21 is configured to obtain a navigation path of a target vehicle in a target area and vehicle material information;

[0081] A determination module 22 is configured to determine potential risk targets that have the possibility of meeting the target vehicle; wherein the potential risk targets include a chemical storage area and / or a chemical vehicle loaded with chemicals;

[0082] A judgment module 23 is configured to judge whether to optimize the navigation path based on the vehicle material information and the potential risk targets;

[0083] An optimization module 24 is configured to optimize the navigation path if the judgment result is yes.

[0084] As an optional embodiment, the determination module 22 is specifically configured to:

[0085] Obtain position distribution information of at least part of the chemical storage area in the target area;

[0086] Determine the chemical storage area existing on the navigation path in the position distribution information, and determine the chemical storage area existing on the navigation path as the potential risk target.

[0087] As an optional embodiment, the determination module 22 is specifically configured to:

[0088] Obtain driving information of an existing vehicle in the target area;

[0089] Determine a chemical vehicle that has the possibility of meeting the target vehicle based on the driving information of the existing vehicle, and determine the chemical vehicle that has the possibility of meeting the target vehicle as the potential risk target.

[0090] As an optional embodiment, the judgment module 23 is specifically configured to:

[0091] performing safety analysis on the navigation path based on the vehicle material information and the potential risk target, and determining to optimize the navigation path when the analysis result of the safety analysis is unsafe.

[0092] As an optional embodiment, the safety analysis manner of the judging module 23 specifically includes one or more of the following manners:

[0093] judging whether the chemicals contained in the material carried by the target vehicle and the potential risk target have chemical reaction; if yes, it indicates that the navigation path is unsafe;

[0094] judging whether the chemicals contained in the material carried by the target vehicle and the potential risk target have harmful influence after chemical reaction; if yes, it indicates that the navigation path is unsafe; wherein the harmful influence includes one of the following: harmful substances generated by the reaction exceed the standard, the consumed material by the reaction exceeds the standard, the temperature change caused by the reaction has influence on the material carried by the target vehicle, and the temperature change caused by the reaction has influence on the chemicals contained in the potential risk target;

[0095] judging whether the chemicals contained in the material carried by the target vehicle and the potential risk target meet the reaction condition requirement of harmful influence; if yes, it indicates that the navigation path is unsafe.

[0096] As an optional embodiment, the optimization module 24 is specifically used for:

[0097] determining the position information of the potential risk target in the navigation network corresponding to the target area;

[0098] re-planning the navigation path in the target area excluding the position information of the potential risk target according to the current position information and the destination position information of the target vehicle.

[0099] As an optional embodiment, the optimization module 24 is specifically used for:

[0100] determining the required speed at which the target vehicle and the potential risk target meet without harmful influence;

[0101] judging whether the target vehicle can meet the potential risk target at the required speed according to the road condition and / or the self condition of the target vehicle at the meeting;

[0102] if yes, prompting to meet the potential risk target at the required speed;

[0103] if no, re-planning the navigation path to avoid meeting the potential risk target.

[0104] As an optional embodiment, the optimization module 24 is specifically used for:

[0105] obtaining a target vehicle's assumed speed interval;

[0106] determining a time range required for the target vehicle to meet the potential risk target at a preset assumed speed;

[0107] judging whether the chemical contained in the target vehicle's load and the potential risk target will produce harmful effects after chemical reaction within the time range;

[0108] if yes, modifying the preset assumed speed and repeating the above process until a safe speed corresponding to no harmful effects is obtained;

[0109] prompting the target vehicle to meet the potential risk target at the safe speed or to re-plan a navigation path to avoid meeting the potential risk target.

[0110] Based on the same inventive concept as in the foregoing embodiments, the embodiments of the present application also provide a computer readable storage medium, which stores a computer program, and the program is executed by a processor to implement the steps of any of the foregoing methods.

[0111] Based on the same inventive concept as in the foregoing embodiments, the embodiments of the present application also provide a computer device, which comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor executes the program to implement the steps of any of the foregoing methods.

[0112] By one or more embodiments of the present application, the following beneficial effects or advantages are achieved:

[0113] The navigation path optimization method provided by the present application uses the vehicle load information of the vehicle and the potential risk target that has a possibility of meeting as reference factors to reasonably optimize the driving path for each vehicle carrying chemicals, which is beneficial to improve the vehicle operation efficiency in the park and can avoid the chemical reaction between the chemical carried by the vehicle and other chemicals to produce harmful effects, thereby improving the vehicle carrying safety.

[0114] The algorithms and displays presented herein are not inherently related to any particular computer, virtual system, or other apparatus. Various general purpose systems can be used with these teachings, or with modifications that result from the teaching. The structures for a variety of these systems will be readily apparent to those of skill in the art given the teachings herein. In addition, the present application is not described with reference to any particular programming language. It will be appreciated that a variety of programming languages can be used to implement the teachings of the application as described herein, and any references below to specific languages are provided for disclosure of enablement only.

[0115] In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the application can be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been described in detail in order not to obscure the understanding of this description.

[0116] Similarly, it is to be understood that the embodiments of the present application can be used in the exact form disclosed herein, or with minor modifications, and the present application is not limited to the exact form disclosed herein but is only limited by the claims. Similarly, it should be apparent that ones skilled in the art, upon possessing the teachings of the present application herein provided, can freely utilize such modifications of the present application, and the inventive aspects thereof, as can be required to accomplish the same results as the embodiments of the present application herein disclosed.

[0117] Those skilled in the art will appreciate that the modules in the apparatuses in the embodiments can be adapted and placed in one or more apparatuses other than the embodiments. The modules or units or components in the embodiments can be combined into one module or unit or component, and further can be divided into more sub-modules or sub-units or sub-components. Any combination of all the features disclosed in the specification (including the accompanying claims, abstract and drawings), and any method or apparatus so disclosed, can be used in any combination, except that at least some of such features and / or processes or units are mutually exclusive, unless otherwise explicitly stated. Each feature disclosed in the specification (including the accompanying claims, abstract and drawings) can be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

[0118] Further, those skilled in the art will appreciate that a combination of features of different embodiments can be meant to be within the scope of the application and form a different embodiment. For example, in the following claims, any of the claimed embodiments can be used in any combination.

[0119] Various component embodiments of the present application can be implemented in hardware, or as software modules running in one or more processors, or in combinations thereof. As will be appreciated by those skilled in the art, microprocessors or digital signal processors (DSPs) can be used in practice to implement some or all of the functionality of some or all of the components of the gateway, proxy server, system according to embodiments of the present application. The present application can also be implemented as a program of instructions for performing part or all of the methods described herein, e.g., a computer program and a computer program product. Such program of the present application can be stored on a computer readable medium, or can be in the form of one or more signals. Such signals can be downloaded from an Internet website, or provided on a carrier signal, or in any other form.

[0120] It should be noted that the above-mentioned embodiments illustrate rather than limit the application, and that one skilled in the art will be able to design many alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word 'comprising' does not exclude the presence of elements or steps other than those listed in a claim. The word 'a' or 'an' preceding an element does not exclude the presence of a plurality of such elements. The application can be implemented by means of both hardware and software, and any combination thereof. In a unit claim, several devices can be listed with a conjunction like 'or', but it is to be understood that each of these devices can be implemented by its own hardware item. The use of the words 'first','second', and 'third', etc. do not imply any ordering. These words are to be interpreted as names.

Claims

1. A method of optimizing a navigation path, characterized by, The method comprises: obtaining a navigation path of a target vehicle in a target area and vehicle material information; determining a potential risk target that has a possibility of meeting with the target vehicle; wherein the potential risk target comprises a chemical storage area and / or a chemical vehicle loaded with chemicals; judging whether to optimize the navigation path based on the vehicle material information and the potential risk target; if yes, optimizing the navigation path, specifically comprising: determining a required vehicle speed at which the target vehicle and the potential risk target meet without causing harmful effects; judging whether the target vehicle can meet the potential risk target at the required vehicle speed according to road conditions and / or conditions of the target vehicle itself at the time of meeting; if yes, prompting the target vehicle to meet the potential risk target at the required vehicle speed; if no, re-planning the navigation path to avoid meeting the potential risk target; or obtaining a hypothetical vehicle speed range of the target vehicle; determining a time range required for the target vehicle to meet the potential risk target at a preset hypothetical vehicle speed; judging whether a chemical reaction between the material loaded on the target vehicle and the chemicals contained in the potential risk target within the time range causes harmful effects; if yes, modifying the preset hypothetical vehicle speed and repeating the above process until a safe vehicle speed corresponding to no harmful effects is obtained; prompting the target vehicle to meet the potential risk target at the safe vehicle speed, or re-planning the navigation path to avoid meeting the potential risk target.

2. The method of claim 1, wherein, The determination of the potential risk target that has a possibility of meeting with the target vehicle specifically comprises: obtaining position distribution information of at least part of the chemical storage areas in the target area; determining a chemical storage area existing on the navigation path in the position distribution information, and determining the chemical storage area existing on the navigation path as the potential risk target.

3. The method of claim 1 or 2, wherein, The determination of the potential risk target that has a possibility of meeting with the target vehicle specifically comprises: obtaining driving information of an existing vehicle in the target area; determining a chemical vehicle that has a possibility of meeting with the target vehicle based on the driving information of the existing vehicle, and determining the chemical vehicle that has a possibility of meeting with the target vehicle as the potential risk target.

4. The method of claim 1, wherein, The judgment of whether to optimize the navigation path based on the vehicle material information and the potential risk target specifically comprises: performing safety analysis on the navigation path based on the vehicle material information and the potential risk target, and determining to optimize the navigation path when the analysis result of the safety analysis is unsafe.

5. The method of claim 4, wherein, The safety analysis on the navigation path based on the vehicle material information and the potential risk target specifically comprises one or more of the following ways: judging whether a chemical reaction occurs between the material loaded on the target vehicle and the chemicals contained in the potential risk target; if yes, indicating that the navigation path is unsafe; determining whether the chemical reaction between the chemical in the potential risk target and the material carried by the target vehicle produces harmful effects; if yes, indicating that the navigation path is unsafe; wherein the harmful effects include one of the following: harmful substances generated by the reaction exceed a standard, the material consumed by the reaction exceeds a standard, temperature change caused by the reaction affects the material carried by the target vehicle, and temperature change caused by the reaction affects the chemical in the potential risk target; determining whether the chemical in the potential risk target and the material carried by the target vehicle meet the reaction condition requirement for producing the harmful effects; if yes, indicating that the navigation path is unsafe.

6. The method of claim 1, wherein, The optimization of the navigation path specifically includes: determining the location information of the potential risk target in the target area; replanning the navigation path in the target area excluding the location information of the potential risk target according to the current location information and the destination location information of the target vehicle.

7. An apparatus for optimizing a navigation path, characterized by The method includes: obtaining a navigation path of a target vehicle in a target area and vehicle material information; determining a potential risk target that is likely to meet the target vehicle; wherein the potential risk target includes a chemical storage area and / or a chemical vehicle loaded with chemicals; determining whether to optimize the navigation path based on the vehicle material information and the potential risk target; optimizing the navigation path if yes; wherein the optimization module is specifically configured to: determining a required speed at which the target vehicle and the potential risk target meet without producing harmful effects; determining whether the target vehicle can meet the potential risk target at the required speed according to road conditions and / or the conditions of the target vehicle itself; if yes, prompting the target vehicle to meet the potential risk target at the required speed; if not, replanning the navigation path to avoid meeting the potential risk target; or obtaining a hypothetical speed range of the target vehicle; determining a time range required for the target vehicle to meet the potential risk target at a preset hypothetical speed; determining whether the chemical in the potential risk target and the material carried by the target vehicle produces harmful effects after chemical reaction within the time range; if yes, modifying the preset hypothetical speed and repeating the above process until a safe speed corresponding to no harmful effects is obtained; prompting the target vehicle to meet the potential risk target at the safe speed, or replanning the navigation path to avoid meeting the potential risk target.

8. A computer-readable storage medium having stored thereon a computer program, characterized in that The program is executed by the processor to implement the steps of the method of any one of claims 1-6.

9. A computer device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, The processor executes the program to implement the steps of the method of any one of claims 1-6.

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