Use management method and system of intelligent police service mobile charging pile

Abstract

The invention relates to the technical field of charging piles, in particular to an intelligent police service mobile charging pile use management method and system, and the method comprises the steps: collecting the remaining power and positioning information of a patrol vehicle at regular time, then calculating the power risk, and determining a following vehicle based on the power risk. After the following vehicle is determined, a following coordinate range is defined according to the location of the following vehicle, a charging request of the vehicle is quickly responded in the range, and once the charging request is received and the position is determined, the mobile charging pile is controlled to carry the vehicle to move to the charging position for charging. According to the invention, dynamic following of the new energy patrol vehicle is realized under the condition of obtaining authorization and ensuring data security, so that the charging request can be responded in time, and the method has relatively high timeliness and practicability.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of charging piles, in particular to a use management method and system of an intelligent police mobile charging pile. BACKGROUND

[0002] A mobile charging pile is a device that can be flexibly moved and provides charging services for electric vehicles (EVs). Unlike charging piles that are fixedly installed in parking lots, charging stations or home garages, the core feature of a mobile charging pile is its portability and flexibility, which can be transported to the location of a vehicle for charging as needed.

[0003] Police vehicles, especially new energy police vehicles (such as electric patrol vehicles and hybrid command vehicles) that have been gradually promoted in recent years, need mobile charging piles or a support system with mobile charging capabilities.

[0004] However, the current mobile charging equipment is mostly general-purpose products (such as commercial mobile charging vehicles and portable power banks), which are not specifically optimized for police work scenarios. They do not integrate police communication, positioning and power management systems, and cannot be linked with police platforms. Once there is a charging demand, it is often difficult to respond in a timely manner. SUMMARY

[0005] In view of this, the purpose of the present application is to provide a use management method and system of an intelligent police mobile charging pile to solve the problems in the background art.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0007] The use management method of the intelligent police mobile charging pile of the present application comprises the following steps:

[0008] Obtain the positioning coordinates and the remaining power of a plurality of patrol vehicles at a plurality of time points in a current time period through authorization, wherein the current time period is a time period of a target length before the current time point;

[0009] Calculate the power consumption speed of each patrol vehicle based on the remaining power at a plurality of time points, and perform risk calculation on each patrol vehicle based on the remaining power at the current time point and the power consumption speed, to obtain the relative risk values of the plurality of patrol vehicles;

[0010] Based on the relative risk values of the plurality of patrol vehicles and the current positioning, a following vehicle group is screened out, the following coordinate range is determined based on the positioning coordinates of the following vehicle group, and the mobile charging pile carrying vehicle is controlled to move to the following coordinate range to perform standby following;

[0011] When a charging request of a patrol vehicle is obtained during the following process, a charging position is determined based on the charging request, and the mobile charging pile carrying vehicle is controlled to move to the charging position.

[0012] In an embodiment of the present application, the power consumption speed of each patrol vehicle is calculated based on the residual power at multiple time points, including:

[0013] The unit power consumption speed v between any two adjacent time points is calculated t , and the mathematical expression of the unit power consumption speed is:

[0014]

[0015] In the formula, Soc t is the residual power corresponding to the time point t, t-1 Socis the residual power corresponding to the time point t-1, and T is the time length between the time point t and the time point t-1.

[0016] The average value of the multiple unit power consumption speeds v t is calculated to obtain the power consumption speed v c of each patrol vehicle, where c is the serial number of the patrol vehicle.

[0017] In an embodiment of the present application, the risk of each patrol vehicle is calculated based on the residual power at the current time point and the power consumption speed, to obtain the relative risk values of the multiple patrol vehicles, including:

[0018] The residual working time of each patrol vehicle is estimated based on the power consumption speed v c and the current residual power Soc c

[0019] The relative risk value of each patrol vehicle is calculated based on the residual working time , to obtain the relative risk values of the multiple patrol vehicles , where the calculation formula of the normalized residual time is:

[0020]

[0021] In the formula, is the shortest residual time, is the longest residual time.

[0022] In an embodiment of the present application, the following vehicle group is screened based on the relative risk values of the multiple patrol vehicles and the current positioning, including:

[0023] The number X of mobile charging pile carrying vehicles available at the current time point is obtained, and the feature vector at the current time point is constructed based on the positioning coordinates P c and the relative risk value of each patrol vehicle

[0024] obtaining a feature vector of a current time point of each patrol vehicle based on a K-means clustering algorithm performing clustering to obtain a plurality of clusters;

[0025] calculating an average risk value of each cluster, and retaining a top X high-risk cluster with the highest average risk value;

[0026] obtaining a number of patrol vehicles in each high-risk cluster, and when the number of patrol vehicles in the cluster is greater than a preset number threshold N, taking a top N patrol vehicle with the highest relative risk value as a following vehicle group.

[0027] In an embodiment of the present application, a following coordinate range is determined based on the positioning coordinates of the following vehicle group, comprising:

[0028] calculating an average value of the positioning coordinates of all patrol vehicles in the following vehicle group to obtain a center coordinate;

[0029] constructing the following coordinate range with the center coordinate as a circle point and a preset radius.

[0030] In an embodiment of the present application, a mobile charging pile carrying vehicle is controlled to move to the following coordinate range to perform standby following, comprising:

[0031] comparing a current coordinate of the mobile charging pile carrying vehicle with the following coordinate range;

[0032] when the current coordinate of the mobile charging pile carrying vehicle is located in the following coordinate range, sending standby information to the mobile charging pile carrying vehicle, and when the current coordinate of the mobile charging pile carrying vehicle is located outside the following coordinate range, calling a third-party navigation service interface to determine a parking space in the following coordinate range, and sending a position of the parking space and navigation information to the mobile charging pile carrying vehicle.

[0033] In an embodiment of the present application, the charging position is a position of a patrol vehicle, a position of a mobile charging pile carrying vehicle, or a negotiated position.

[0034] The present application also provides a use management system of an intelligent police service mobile charging pile, comprising:

[0035] an obtaining module, configured to obtain positioning coordinates and residual power of a plurality of patrol vehicles at a plurality of time points in a current time period through authorization, wherein the current time period is a time period of a target time length before a current time point;

[0036] A risk estimation module is used to calculate the power consumption rate of each patrol vehicle based on the remaining power at multiple time points, and to calculate the risk of each patrol vehicle based on the remaining power and power consumption rate at the current time point to obtain relative risk values ​​for multiple patrol vehicles;

[0037] A standby following management module is used to screen out a following vehicle group based on the relative risk values ​​and current positioning of multiple patrol vehicles, determine a following coordinate range based on the positioning coordinates of the following vehicle group, and control the mobile charging pile to carry the vehicle to move to the following coordinate range to perform standby following;

[0038] The charging following management module is used to determine the charging position based on the charging request when obtaining the charging request of the patrol vehicle during the following process, and control the mobile charging pile to carry the vehicle to the charging position.

[0039] The present application also provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the method as described in any one of the above items is implemented.

[0040] The present application also provides an electronic terminal, comprising: a processor and a memory;

[0041] The memory is used to store a computer program, and the processor is used to execute the computer program stored in the memory, so that the terminal performs any of the above methods.

[0042] The beneficial effects of the present invention are: the method and system for managing the use of the intelligent police mobile charging pile of the present invention, the present application collects the remaining power and positioning information of the patrol vehicle at regular intervals, then calculates the power risk, and determines the following vehicle based on the power risk. After determining the following vehicle, the following coordinate range is delineated according to the positioning of the following vehicle, and the charging request of the vehicle is quickly responded to within this range. Once the charging request is received and the position is determined, the mobile charging pile is controlled to carry the vehicle to the charging position for charging. The present application realizes dynamic following of new energy patrol vehicles with authorization and data security, so that charging requests can be responded to in a timely manner, which has strong timeliness and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0044] Figure 1 This is an application scenario diagram of the method for using and managing the smart police mobile charging pile in the embodiment of this application;

[0045] Figure 2 This is a flow chart of a method for using and managing a smart police mobile charging pile in one embodiment of the present application;

[0046] Figure 3 is a structural diagram of a use management system of an intelligent police service mobile charging pile shown in an embodiment of the present application. DETAILED DESCRIPTION

[0047] The present application can be implemented or applied in other different specific embodiments, and various modifications or changes can be made to the details based on different views and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0048] It should be noted that the drawings provided in the following embodiments only schematically illustrate the basic concept of the present application, and only the layers related to the present application are shown in the drawings, not the number of layers, shapes and sizes when actually implemented. The actual implementation of each layer can be a random change, and the layer layout pattern can be more complex.

[0049] In the following description, a large number of details are discussed to provide a more thorough explanation of the embodiments of the present application, however, it is obvious to those skilled in the art that the embodiments of the present application can be implemented without these specific details.

[0050] Figure 1 is a use management method for the intelligent police service mobile charging pile in the embodiments of the present application, as shown in Figure 1 The use scenario of the present application includes a mobile charging pile 110, a carrying vehicle 120 carrying the mobile charging pile, a plurality of patrol vehicles 130, and a server 140. In the present application, the server 140 requests basic data from the vehicle system of the plurality of patrol vehicles 130 at regular intervals, the basic data includes positioning information and remaining power, then the server 140 performs analysis, and sends the analysis result to the carrying vehicle 120 carrying the mobile charging pile.

[0051] In order to ensure data security, the server 140 can be an internal server of the police service system, and the acquisition of data needs to be authorized and permitted.

[0052] Figure 2 is a flowchart of a use management method for the intelligent police service mobile charging pile in an embodiment of the present application, as shown in Figure 1 The present application can include steps S210 to S240:

[0053] S210, obtaining, by authorization, positioning coordinates and residual power of the plurality of patrol vehicles at a plurality of time points in a current time period, wherein the current time period is a time period of a target time length before a current time point;

[0054] In the present application, in order to ensure data security, authorization verification is performed each time the positioning coordinates and residual power of the patrol vehicle are requested. In the present application, the positioning and residual power of the patrol vehicle are updated in a rolling manner by regularly requesting data.

[0055] S220, calculating the power consumption speed of each patrol vehicle based on the residual power at the plurality of time points, and performing risk calculation on each patrol vehicle based on the residual power at the current time point and the power consumption speed, to obtain relative risk values of the plurality of patrol vehicles;

[0056] In the present application, the power consumption speed is calculated based on the power consumption data in the recent period of time, and the risk calculation is performed.

[0057] The calculation process of the power consumption speed includes:

[0058] S2201, calculating the unit power consumption speed v t , wherein the mathematical expression of the unit power consumption speed is:

[0059]

[0060] In the formula, Soc t is the residual power corresponding to the time point t, Soc t-1 is the residual power corresponding to the time point t-1, and T is the time length between the time point t and the time point t-1.

[0061] S2202, calculating the average value of the plurality of unit power consumption speeds v t , to obtain the power consumption speed v c of each patrol vehicle, wherein c is the serial number of the patrol vehicle.

[0062] In the present application, the change amount of the residual power between any two adjacent time points is calculated first, and then the power consumption speed between the two adjacent time points is calculated based on the change amount and the time length. Then, the plurality of speeds are averaged to obtain the estimated speed.

[0063] In the present embodiment, considering that the number of vehicles that can be covered by the mobile charging pile is limited, only a fixed number of coverage ranges need to be considered, and therefore, in the present embodiment, the calculation of the power shortage risk only considers the relative risk based on the ranking, and the relative risk calculation process is as follows:

[0064] S2211, calculating the relative risk of each patrol vehicle based on the power consumption speed v c and the current residual power Soc cEstimate the remaining working time length of each patrol vehicle

[0065] First, the working time length is estimated based on the power consumption speed and the remaining power of the recent time period, that is,

[0066] S2212, the remaining working time length of each patrol vehicle The relative risk value is calculated to obtain the relative risk value of the plurality of patrol vehicles Among them, the normalized remaining time length The calculation formula is:

[0067]

[0068] In the formula, is the shortest remaining time length, is the longest remaining time length.

[0069] Then, the estimated time length is normalized, that is, The normalized value reflects the relative working time length of different vehicles. The application uses the equivalent time length to construct the risk value. For example, the working time length of vehicle A, vehicle B and vehicle C is 5 hours, 3 hours and 2 hours respectively, and the normalized values are 1, 0.6 and 0.4 respectively. Substituted into the above formula, the relative risk value of vehicle A is 0%, the relative risk value of vehicle B is 40%, and the relative risk value of vehicle C is 60%.

[0070] S230, based on the relative risk value of the plurality of patrol vehicles and the current positioning, screening out a following vehicle group, determining a following coordinate range based on the positioning coordinates of the following vehicle group, and controlling the mobile charging pile carrying vehicle to move to the following coordinate range to perform standby following;

[0071] In the present application, the relative risk value represents the following priority of each patrol vehicle. However, due to cost constraints, it is impossible to equip each patrol vehicle with a mobile charging pile. Therefore, the present application adopts the mode of a single mobile charging pile carrying vehicle following a plurality of patrol vehicles to perform standby following, so as to ensure that the mobile charging pile carrying vehicle can respond in time and also reduce the overall cost to the greatest extent. The specific process is as follows:

[0072] S231, obtaining the number X of mobile charging pile carrying vehicles available at the current time point, and constructing a feature vector at the current time point based on the positioning coordinates P c and the relative risk value of each patrol vehicle

[0073] Specifically, the dispatching system is used to query in real time the number of currently available mobile charging piles (such as mobile energy storage vehicles, emergency charging vehicles, etc.) and their status (whether they are idle, power level, location, etc.).

[0074] Then the positioning coordinates (such as longitude and latitude) of each patrol vehicle and the relative risk value are combined into a three-dimensional feature vector This facilitates subsequent cluster analysis.

[0075] S232, based on the K-means clustering algorithm, the feature vectors of the current time points of multiple patrol vehicles are clustered. Perform clustering to obtain multiple clusters;

[0076] The specific process of clustering includes:

[0077] S2321, normalize the latitude and longitude and risk value in the feature vector (such as Z-score normalization) to eliminate dimensional differences.

[0078] S2322, eliminate outliers (such as positioning drift points and invalid risk values).

[0079] S2323: Use the Elbow Method to select the optimal K (number of clusters). Calculate the sum of squared clustering errors (Distortion) for different K values ​​and select the K value corresponding to the inflection point.

[0080] S2323, through iterative optimization, patrol vehicles are divided into K clusters, so that vehicles in the same cluster are similar in spatial position and risk value, and there are significant differences between different clusters.

[0081] S233, calculating the average risk value of each cluster, and retaining the top X high-risk clusters with the highest average risk values;

[0082] Since the relative risk values ​​and location characteristics in each cluster are similar, in order to follow the potential demand vehicles, it is necessary to eliminate high-power vehicles that do not need to be charged, that is, to eliminate the low-risk clusters and only retain the top X high-risk clusters.

[0083] In addition, if the mobile charging station carries a large number of vehicles, there is no need to eliminate low-risk clusters.

[0084] S234, obtaining the number of patrol vehicles in each high-risk cluster, and when the number of patrol vehicles in the cluster is greater than a preset number threshold N, taking the first N patrol vehicles with the highest relative risk values ​​as the following vehicle group.

[0085] Since each mobile charging pile carrying vehicle has limited ports for simultaneous charging, and to avoid too many vehicles in the group causing difficulty in following, the application limits the number of vehicles in each cluster, and once the number of patrol vehicles in the cluster is greater than the preset number threshold N, the top N patrol vehicles with the highest relative risk value are selected as the following vehicle group.

[0086] After obtaining the following vehicle group, the following coordinate range of the mobile charging pile carrying vehicle can be calculated. Here, a single coordinate is not used as the following coordinate, because a single coordinate will change frequently, which will cause the mobile charging pile carrying vehicle to need to move frequently, resulting in additional workload and cost. Therefore, a following coordinate range is set for comparison at regular intervals, and only when it is out of range does it need to move and follow. This greatly reduces the workload and driving cost. Specifically, the determination process of the following coordinate range includes:

[0087] (1) Calculate the average value of the positioning coordinates of all patrol vehicles in the following vehicle group to obtain the center coordinate.

[0088] (2) Take the center coordinate as the center and construct a following coordinate range with a preset radius.

[0089] According to the movement ability of the charging pile, the charging time or the task demand, a fixed radius (such as 500 meters, 1 kilometer) is set.

[0090] When on standby follow, first compare the current coordinate of the mobile charging pile carrying vehicle with the following coordinate range;

[0091] When the current coordinate of the mobile charging pile carrying vehicle is within the following coordinate range, send standby information to the mobile charging pile carrying vehicle; at this time, the vehicle can be kept stationary, and in this case no information can be sent to the vehicle. However, in order to avoid the situation where the system cannot send information in case of failure, it is more optimal to send standby information.

[0092] When the current coordinate of the mobile charging pile carrying vehicle is outside the following coordinate range, call the third-party navigation service interface to determine a parking space within the following coordinate range, and send the location and navigation information of the parking space to the mobile charging pile carrying vehicle.

[0093] If the position of the currently followed patrol vehicle has changed significantly, resulting in a large change in the updated following coordinate range, and thus the current coordinate of the mobile charging pile carrying vehicle is outside the following coordinate range, displacement is needed at this time.

[0094] When displacement is performed, the service finds a suitable parking location by calling the third-party API service interface for navigation and sending it to the mobile charging pile carrying vehicle.

[0095] S240, when the charging request of the patrol vehicle is acquired in the following process, the charging position is determined based on the charging request, and the mobile charging pile carrying vehicle is controlled to move to the charging position.

[0096] The charging position is the position of the patrol vehicle, the position of the mobile charging pile carrying vehicle or the negotiated position.

[0097] In the present application, the patrol vehicle can send a charging request through the server, and the server forwards the request to the mobile charging pile carrying vehicle. The request contains the positioning and the remaining power of the patrol vehicle. By calling a third-party interface, a first navigation route is constructed with the patrol vehicle as the starting point and the mobile charging pile carrying vehicle as the terminal point, or a second navigation route is constructed with the patrol vehicle as the terminal point and the mobile charging pile carrying vehicle as the starting point. The optimal position is selected by comparing the time lengths of the two.

[0098] When the remaining power of the patrol vehicle is insufficient to complete the first navigation route, the second navigation route is preferred.

[0099] Or it can also be determined by negotiation to set the terminal point at the negotiated position, and then navigate with the negotiated position as the terminal point and the vehicles on both sides as the starting points, and send the navigation route.

[0100] The use management method of the intelligent police mobile charging pile of the present application acquires the remaining power and positioning information of the patrol vehicle at regular intervals, then calculates the power risk, and determines the following vehicle based on the power risk. After determining the following vehicle, the following coordinate range is determined according to the positioning of the following vehicle, and the charging request of the vehicle in this range is quickly responded. Once the charging request is received, the position is determined, and the mobile charging pile carrying vehicle is controlled to move to the charging position for charging. The present application realizes dynamic following of new energy patrol vehicles under the condition of authorization and guarantee of data security, so as to respond to the charging request in time, has strong timeliness and practicality.

[0101] As shown in Figure 3 The present application also provides a use management system of the intelligent police mobile charging pile, which comprises:

[0102] An acquisition module is used to acquire the positioning coordinates and the remaining power of a plurality of patrol vehicles at a plurality of time points in a current time period through authorization, wherein the current time period is a time period of a target time length before a current time point.

[0103] A risk estimation module is used to calculate the power consumption speed of each patrol vehicle based on the remaining power at a plurality of time points, and to calculate the risk of each patrol vehicle based on the remaining power at the current time point and the power consumption speed, to obtain the relative risk values of the plurality of patrol vehicles.

[0104] The standby following management module is used for screening out a following vehicle group based on relative risk values of a plurality of patrol vehicles and current positioning, determining a following coordinate range based on positioning coordinates of the following vehicle group, and controlling a mobile charging pile carrying vehicle to move to the following coordinate range to perform standby following;

[0105] The charging following management module is used for determining a charging position based on a charging request of the patrol vehicle when the charging request is obtained in the following process, and controlling the mobile charging pile carrying vehicle to move to the charging position.

[0106] The use management system of the intelligent police service mobile charging pile provided by the application collects the residual power and positioning information of the patrol vehicle at regular time intervals, then calculates the power risk, and determines the following vehicle based on the power risk. After determining the following vehicle, the following coordinate range is determined according to the positioning of the following vehicle, the charging request of the vehicle in this range is quickly responded, and once the charging request is received, the mobile charging pile carrying vehicle is controlled to move to the charging position for charging after the position is determined. The application realizes the dynamic following of the new energy patrol vehicle under the condition of being authorized and ensuring data security, so that the charging request can be responded in time, and the application has strong timeliness and practicability.

[0107] The embodiment further provides an electronic terminal, comprising a processor and a memory.

[0108] The memory is used for storing a computer program, and the processor is used for executing the computer program stored in the memory, so that the terminal executes any method in the embodiment.

[0109] The computer readable storage medium in the embodiment can be understood by those skilled in the art that all or part of the steps of the above-mentioned method embodiments can be completed by a computer program related hardware. The foregoing computer program can be stored in a computer readable storage medium. The program executes the steps of the above-mentioned method embodiments when executed; and the foregoing storage medium includes ROM, RAM, magnetic disc or optical disc and various storage program codes.

[0110] The electronic terminal provided by the embodiment includes a processor, a memory, a transceiver and a communication interface, the memory and the communication interface are connected with the processor and the transceiver and complete communication between each other, the memory is used for storing a computer program, the communication interface is used for communication, and the processor and the transceiver are used for running the computer program, so that the electronic terminal executes each step of the method.

[0111] In the present embodiment, the memory can include a random access memory (RAM) and can also include a non-volatile memory such as at least one disk memory.

[0112] The processor described above can be a general processor, including a central processing unit (CPU), a network processor (NP), etc.; can also be a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component.

[0113] Another aspect of the present application further provides a computer readable storage medium, which has stored thereon a computer program, and the computer program is executed by a processor of a computer to enable the computer to perform the method described above. The computer readable storage medium can be included in the electronic device described in the above embodiments, or can exist separately and not be assembled into the electronic device.

[0114] Another aspect of the present application further provides a computer program product or a computer program, which includes computer instructions stored in a computer readable storage medium. A processor of a computer device reads the computer instructions from the computer readable storage medium, and the processor executes the computer instructions to enable the computer device to perform the method provided in each of the above embodiments.

[0115] The above embodiments are merely preferred embodiments of the present application for fully illustrating the present application, and the protection scope of the present application is not limited thereto. Any equivalent replacement or transformation of the present application made by those skilled in the art based on the present application shall fall within the protection scope of the present application.

Claims

1. The method for using and managing smart police mobile charging piles is characterized by: Including steps: Obtaining, through authorization, the positioning coordinates and remaining power of multiple patrol vehicles at multiple time points within a current time period, wherein the current time period is a time period of a target duration before the current time point; Calculate the power consumption rate of each patrol vehicle based on the remaining power at multiple time points, and calculate the risk of each patrol vehicle based on the remaining power and power consumption rate at the current time point to obtain the relative risk values ​​of multiple patrol vehicles; Based on the relative risk values ​​and current positioning of multiple patrol vehicles, a group of following vehicles is selected, a following coordinate range is determined based on the positioning coordinates of the following vehicle group, and the mobile charging pile carrying the vehicle is controlled to move to the following coordinate range to perform standby following; When a charging request of a patrol vehicle is obtained during the following process, a charging position is determined based on the charging request, and the mobile charging pile is controlled to carry the vehicle to the charging position.

2. The method for using and managing the intelligent police mobile charging pile according to claim 1 is characterized in that: Calculate the power consumption rate of each patrol vehicle based on the remaining power at multiple time points, including: Calculate the unit power consumption rate v between any two adjacent time points t , wherein the mathematical expression of the unit power consumption rate is: Where, Soc t The remaining power at time t, Soc t-1 is the remaining power corresponding to time point t-1, and T is the time between time point t and time point t-1; Calculate the power consumption rate v of multiple units t The average value of the power consumption speed v of each patrol vehicle is obtained c , where c is the serial number of the patrol vehicle.

3. The method for using and managing the intelligent police mobile charging pile according to claim 1, characterized in that: The risk of each patrol vehicle is calculated based on the remaining power and power consumption rate at the current time point, and the relative risk values ​​of multiple patrol vehicles are obtained, including: Based on the power consumption rate v c And the current remaining power Soc c Estimate the remaining operating time for each patrol vehicle Remaining working hours for each patrol vehicle Perform relative risk value calculation to obtain the relative risk values ​​of multiple patrol vehicles Among them, the normalized remaining time The calculation formula is: Where, is the shortest remaining time, The maximum remaining time.

4. The method for using and managing the intelligent police mobile charging pile according to claim 1, characterized in that: Based on the relative risk values ​​of multiple patrol vehicles and their current locations, a group of following vehicles is selected, including: Get the number X of vehicles that can be carried by the mobile charging piles available at the current time point, and based on the positioning coordinates P of each patrol vehicle c and relative risk value Construct the feature vector at the current time point Based on the K-means clustering algorithm, the feature vectors of the current time points of multiple patrol vehicles are clustered. Perform clustering to obtain multiple clusters; Calculate the average risk value of each cluster and retain the top X high-risk clusters with the highest average risk values; The number of patrol vehicles in each high-risk cluster is obtained, and when the number of patrol vehicles in the cluster is greater than a preset number threshold N, the first N patrol vehicles with the highest relative risk values ​​are used as the following vehicle group.

5. The method for using and managing the intelligent police mobile charging pile according to claim 1 is characterized in that: Determining a following coordinate range based on the positioning coordinates of the following vehicle group includes: Calculating the average of the positioning coordinates of all patrol vehicles in the following vehicle group to obtain the center coordinates; The center coordinate is used as a circle point, and a follow coordinate range is constructed with a preset radius.

6. The method for using and managing the intelligent police mobile charging pile according to claim 1, characterized in that: Controlling the mobile charging pile to carry the vehicle to move to the following coordinate range to perform standby following, including: Comparing the current coordinates of the vehicle carried by the mobile charging pile with the following coordinate range; When the current coordinates of the vehicle carried by the mobile charging pile are within the following coordinate range, standby information is sent to the vehicle carried by the mobile charging pile; when the current coordinates of the vehicle carried by the mobile charging pile are outside the following coordinate range, a third-party navigation service interface is called to determine a parking space within the following coordinate range, and the location of the parking space and navigation information are sent to the vehicle carried by the mobile charging pile.

7. The method for using and managing the intelligent police mobile charging pile according to claim 1, characterized in that: The charging position is the position of a patrol vehicle, the position of a vehicle carried by a mobile charging pile, or a negotiated position.

8. The usage management system of intelligent police mobile charging piles is characterized by: The system comprises: An acquisition module, configured to obtain, through authorization, the positioning coordinates and remaining power of multiple patrol vehicles at multiple time points within a current time period, wherein the current time period is a time period of a target duration before the current time point; A risk estimation module is used to calculate the power consumption rate of each patrol vehicle based on the remaining power at multiple time points, and to calculate the risk of each patrol vehicle based on the remaining power and power consumption rate at the current time point to obtain relative risk values ​​for multiple patrol vehicles; A standby following management module is used to screen out a following vehicle group based on the relative risk values ​​and current positioning of multiple patrol vehicles, determine a following coordinate range based on the positioning coordinates of the following vehicle group, and control the mobile charging pile to carry the vehicle to move to the following coordinate range to perform standby following; The charging following management module is used to determine the charging position based on the charging request when obtaining the charging request of the patrol vehicle during the following process, and control the mobile charging pile to carry the vehicle to the charging position.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 7 is implemented.

10. An electronic terminal, characterized in that: include: processor and memory; The memory is used to store a computer program, and the processor is used to execute the computer program stored in the memory, so that the electronic terminal executes the method according to any one of claims 1 to 7.

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