Electric vehicle safety monitoring methods, devices, equipment and storage media

Abstract

This invention discloses a method, device, equipment, and storage medium for electric vehicle safety monitoring, relating to the field of electric vehicles. The method includes acquiring the driving parameters and maximum acceleration of the electric vehicle; determining whether the electric vehicle has been involved in a collision based on the driving parameters and maximum acceleration; acquiring the lateral acceleration and offset of the electric vehicle; determining whether the electric vehicle has overturned based on the lateral acceleration and offset; acquiring an environmental video feed; and storing the environmental video feed and driving parameters when the electric vehicle overturns. This invention utilizes real-time parameters of the electric vehicle to determine collision and overturning results, offering advantages in accuracy and speed, and solving the problem of not being able to store environmental videos during electric vehicle accidents.

Description

Technical Field

[0001] This invention relates to the field of electric vehicle technology, and in particular to an electric vehicle safety monitoring method, device, equipment, and storage medium. Background Technology

[0002] Electric two-wheelers have brought numerous conveniences to our lives, becoming an essential tool for delivery riders, commuters, and short-distance transportation. Almost every household owns one, and conservatively estimated, the number of electric two-wheelers in use exceeds 300 million. However, traffic accidents involving electric vehicles colliding with other vehicles are frequent. Current safety monitoring methods for electric vehicles have the limitation of not being able to store video footage of accidents, making it difficult to provide evidence for subsequent analysis of the accident's cause. Summary of the Invention

[0003] The main objective of this invention is to provide a method, device, equipment, and storage medium for electric vehicle safety monitoring, aiming to solve the technical problem that existing technologies cannot store video footage of electric vehicles in accidents.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] In a first aspect, the present invention provides a method for safety monitoring of electric vehicles, the method comprising:

[0006] When the electric vehicle is in motion, the driving parameters and limit acceleration of the electric vehicle are acquired, wherein the driving parameters include principal acceleration and the limit acceleration includes positive limit acceleration and negative limit acceleration.

[0007] Based on the electric vehicle's driving parameters and maximum acceleration, determine whether the electric vehicle has been involved in a collision;

[0008] When the electric vehicle is involved in a collision, the lateral acceleration and offset of the electric vehicle are obtained;

[0009] Based on the lateral acceleration and offset, determine whether the electric vehicle has overturned;

[0010] The system acquires environmental video and stores the environmental video and driving parameters when the electric vehicle overturns.

[0011] Optionally, in the above electric vehicle safety monitoring method, the driving parameters also include speed;

[0012] The step of determining whether the electric vehicle has been involved in a collision based on its driving parameters and maximum acceleration includes:

[0013] When the main acceleration is detected to be greater than the reverse limit acceleration and the speed is less than or equal to the second threshold, it is determined that the electric vehicle has been involved in a collision.

[0014] Optionally, in the above-mentioned electric vehicle safety monitoring method, the driving parameters also include the throttle voltage output value;

[0015] The step of determining whether the electric vehicle has been involved in a collision based on its driving parameters and maximum acceleration includes:

[0016] When the throttle voltage does not change, but the main acceleration is greater than the positive limit acceleration, and the speed increases, it is determined that the electric vehicle has been involved in a collision.

[0017] Optionally, in the above-mentioned electric vehicle safety monitoring method, the step of determining whether the electric vehicle has overturned based on the lateral acceleration and offset includes:

[0018] When the detected change in lateral acceleration is greater than the fourth threshold and the offset is greater than the fifth threshold, it is determined that the electric vehicle has overturned.

[0019] Optionally, in the above-mentioned electric vehicle safety monitoring method, the step of acquiring environmental video and storing environmental video and driving parameters when the electric vehicle overturns includes:

[0020] The vehicle controller is used to test the system and hardware of the electric vehicle and output the test results.

[0021] A safety accident problem analysis report is generated using the test results and driving parameters.

[0022] Secondly, the present invention provides a security monitoring device, the device comprising:

[0023] The first parameter acquisition module is used to acquire the driving parameters and limit acceleration of the electric vehicle when the electric vehicle is in motion, wherein the driving parameters include the principal acceleration and the limit acceleration includes the positive limit acceleration and the negative limit acceleration.

[0024] The first judgment module is used to determine whether the electric vehicle has been involved in a collision based on the electric vehicle's driving parameters and maximum acceleration.

[0025] The second parameter acquisition module is used to acquire the lateral acceleration and offset of the electric vehicle when the electric vehicle is involved in a collision.

[0026] The second judgment module is used to determine whether the electric vehicle has overturned based on the lateral acceleration and offset.

[0027] The storage module is used to acquire environmental video and store environmental video and driving parameters when the electric vehicle overturns.

[0028] Thirdly, the present invention provides a safety monitoring device, which includes a processor and a memory. The memory stores a safety monitoring program, and when the safety monitoring program is executed by the processor, it implements the electric vehicle safety monitoring method described above.

[0029] Fourthly, the present invention provides a computer-readable storage medium storing a computer program, which, when executed by one or more processors, implements the electric vehicle safety monitoring method described above.

[0030] The above-described one or more technical solutions provided by this invention can have the following advantages or at least achieve the following technical effects:

[0031] This invention proposes a method, device, equipment, and storage medium for electric vehicle safety monitoring. It acquires the driving parameters and maximum acceleration of the electric vehicle during operation to determine whether a collision has occurred. It also acquires the lateral acceleration and offset of the electric vehicle to determine whether a rollover has occurred. Utilizing real-time parameters of the electric vehicle for result determination offers advantages in accuracy and speed, facilitating timely storage of environmental video and driving parameters. Furthermore, it acquires environmental video and stores driving parameters when the electric vehicle rolls over, solving the problem of not being able to store environmental video during electric vehicle accidents. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a flowchart illustrating the first embodiment of the electric vehicle safety monitoring method of the present invention;

[0034] Figure 2 This is a schematic diagram of the hardware structure of the security monitoring equipment involved in the present invention;

[0035] Figure 3 This is a schematic diagram of the functional modules of the first embodiment of the security monitoring device of the present invention.

[0036] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0038] It should be noted that in this invention, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element. In this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. In this invention, the use of suffixes such as "module," "component," or "unit" to denote elements is merely for illustrative purposes and has no specific meaning in itself. Therefore, "module," "component," or "unit" can be used interchangeably. Those skilled in the art will understand the specific meaning of the above terms in this invention according to the specific circumstances. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this is based on the fact that those skilled in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0039] Example 1

[0040] Reference Figure 1 The flowchart illustrates the first embodiment of the electric vehicle safety monitoring method of the present invention, which is applied to safety monitoring equipment.

[0041] Security monitoring equipment refers to terminal devices or network devices that can achieve network connectivity. Security monitoring equipment can be terminal devices such as mobile phones, computers, tablets, and embedded industrial control computers, or network devices such as servers and cloud platforms.

[0042] like Figure 2The diagram shown is a schematic of the hardware structure of a security monitoring device. The security monitoring device may include: a processor 1001, such as a CPU (Central Processing Unit), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005.

[0043] Those skilled in the art will understand that Figure 2 The hardware structure shown does not constitute a limitation on the security monitoring device of the present invention, and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0044] Specifically, the communication bus 1002 is used to realize the connection and communication between these components;

[0045] User interface 1003 is used to connect to the client and communicate data with the client. User interface 1003 may include output units, such as a display screen, and input units, such as a keyboard.

[0046] The network interface 1004 is used to connect to the backend server and communicate data with the backend server. The network interface 1004 may include input / output interfaces, such as standard wired interfaces and wireless interfaces, such as Wi-Fi interfaces.

[0047] The memory 1005 is used to store various types of data, which may include, for example, instructions for any application or method in the security monitoring device, as well as application-related data. The memory 1005 may be a high-speed RAM or a stable memory, such as a disk storage device. Optionally, the memory 1005 may also be a storage device independent of the processor 1001. (Continuing with the previous section...) Figure 2 The memory 1005 may include an operating system, a network communication module, a user interface module, and a security monitoring program;

[0048] The processor 1001 is used to call the security monitoring program stored in the memory 1005 and perform the following operations:

[0049] When the electric vehicle is in motion, its driving parameters and limit acceleration are acquired. The driving parameters include principal acceleration, and the limit acceleration includes forward limit acceleration and reverse limit acceleration. Based on the driving parameters and limit acceleration, it is determined whether the electric vehicle has been involved in a collision. When the electric vehicle is involved in a collision, its lateral acceleration and offset are acquired. Based on the lateral acceleration and offset, it is determined whether the electric vehicle has overturned. An environmental video is acquired, and when the electric vehicle overturns, the environmental video and driving parameters are stored.

[0050] Based on the aforementioned security monitoring equipment, the following will be combined with... Figure 1 The flowchart shown illustrates the electric vehicle safety monitoring method of this embodiment in detail. The method may include the following steps:

[0051] Step S10: When the electric vehicle is in motion, obtain the driving parameters and limit acceleration of the electric vehicle, wherein the driving parameters include the principal acceleration and the limit acceleration includes the positive limit acceleration and the negative limit acceleration.

[0052] Specifically, the principal acceleration is the acceleration experienced along the direction of travel of the electric vehicle; the positive limit acceleration is the maximum acceleration value that the electric vehicle can obtain along the direction of travel when the current or voltage is increased by turning the handle during travel; and the reverse limit acceleration is the maximum acceleration value that the electric vehicle obtains in the opposite direction of travel when the brake is applied during travel.

[0053] Step S20: Determine whether the electric vehicle has been involved in a collision based on the vehicle's driving parameters and maximum acceleration.

[0054] Specifically, when an electric vehicle is struck from the front or rear, it will receive a forward or backward force. When the principal acceleration is greater than the positive limit acceleration or the reverse limit acceleration, the electric vehicle is determined to have been struck.

[0055] Step S30: When the electric vehicle is subjected to a collision, obtain the lateral acceleration and offset of the electric vehicle.

[0056] Specifically, lateral acceleration is the acceleration of the electric vehicle toward both sides, and offset is the offset between the actual displacement direction of the vehicle and the straight forward direction of the vehicle. Lateral acceleration can be obtained through a six-axis accelerometer, and offset can be obtained through a positioning module, which can be an LC29H positioning module.

[0057] Step S40: Determine whether the electric vehicle has overturned based on the lateral acceleration and offset.

[0058] Specifically, when both lateral acceleration and offset change, it is determined that the electric vehicle has overturned; when neither lateral acceleration nor offset changes, or only lateral acceleration or offset changes, it is determined that the electric vehicle has not overturned.

[0059] Step S50: Obtain environmental video; when the electric vehicle overturns, store the environmental video and driving parameters.

[0060] Specifically, at least one camera device can record the environmental video of the electric vehicle. When the electric vehicle overturns, a portion of the driving video can be extracted as the environmental video to be stored. This environmental video includes at least one of the following: images before the collision, images during the collision, and images after the collision. In practice, the camera device can be a mobile phone or a webcam.

[0061] The electric vehicle safety monitoring method provided in this embodiment acquires the driving parameters and extreme acceleration of the electric vehicle during its operation to determine whether the electric vehicle has been involved in a collision. It also acquires the lateral acceleration and offset of the electric vehicle to determine whether it has overturned. Utilizing real-time parameters of the electric vehicle for result determination offers advantages in accuracy and speed, allowing for timely storage of environmental video and driving parameters. Furthermore, by acquiring environmental video and storing the driving parameters when the electric vehicle overturns, it addresses the problem of not being able to store environmental video during electric vehicle accidents.

[0062] Example 2

[0063] Based on the same inventive concept, a second embodiment of the electric vehicle safety monitoring method of the present invention is proposed, which is applied to safety monitoring equipment.

[0064] The method may include the following steps:

[0065] Step S10: When the electric vehicle is in motion, obtain the driving parameters and limit acceleration of the electric vehicle, wherein the driving parameters include the principal acceleration and the limit acceleration includes the positive limit acceleration and the negative limit acceleration.

[0066] Step S20: Determine whether the electric vehicle has been involved in a collision based on the vehicle's driving parameters and maximum acceleration.

[0067] Step S30: When the electric vehicle is subjected to a collision, obtain the lateral acceleration and offset of the electric vehicle;

[0068] Step S40: Determine whether the electric vehicle has overturned based on the lateral acceleration and offset.

[0069] Step S50: Obtain environmental video; when the electric vehicle overturns, store the environmental video and driving parameters.

[0070] Step S60: Use the vehicle controller to detect the system and hardware of the electric vehicle and output the detection results;

[0071] A safety accident problem analysis report is generated using the test results and driving parameters.

[0072] Specifically, car owners can download an accident analysis report via their mobile phones to find out the cause of the accident due to the collision. Additionally, they can record the location and time of the collision in the accident analysis report.

[0073] Furthermore, the driving parameters also include speed, and step S20 may include:

[0074] Step S21: When the main acceleration is detected to be greater than the reverse limit acceleration and the speed is less than or equal to the second threshold, it is determined that the electric vehicle has been involved in a collision.

[0075] Specifically, when the detected principal acceleration is less than the reverse limit acceleration, or the speed is greater than the second threshold, it is determined that the electric vehicle has not been collided with; when the detected principal acceleration is greater than the reverse limit acceleration, and the speed is less than or equal to the second threshold, it is determined that the electric vehicle has been collided with, and the collision of the electric vehicle comes from the front of the electric vehicle, that is, the electric vehicle has collided with an obstacle or vehicle.

[0076] In practice, the first threshold can be 0 or a smaller speed such as 0.5 m / s.

[0077] Furthermore, the driving parameters also include the throttle voltage output value; step S20 may include:

[0078] Step S22: When it is detected that the throttle voltage has not changed, but the main acceleration is greater than the positive limit acceleration and the speed increases, it is determined that the electric vehicle has been involved in a collision.

[0079] Specifically, when all three conditions mentioned above are met simultaneously, it is determined that the electric vehicle has been involved in a collision, and the collision occurred from the rear of the electric vehicle, meaning that the electric vehicle was hit by a vehicle from behind.

[0080] Furthermore, step S30 may include the following steps:

[0081] When the detected change in lateral acceleration is greater than the fourth threshold and the offset is greater than the fifth threshold, it is determined that the electric vehicle has overturned.

[0082] For more details on the specific implementation of the above method steps, please refer to the description of the specific implementation in Example 1. For the sake of brevity, these details will not be repeated here.

[0083] The electric vehicle safety monitoring method provided in this embodiment further determines whether the electric vehicle has been collided based on speed and voltage output values. This not only improves the accuracy of the judgment but also determines whether the electric vehicle was collided from the front or rear, making it easier to generate a detailed accident analysis report.

[0084] Example 3

[0085] Based on the same inventive concept, referring to Figure 3 The present invention provides a first embodiment of a security monitoring device, which can be a virtual device and applied to security monitoring equipment.

[0086] The following is combined with Figure 3 The functional module diagram shown illustrates the security monitoring device provided in this embodiment in detail. The device may include:

[0087] The first parameter acquisition module 100 is used to acquire the driving parameters and limit acceleration of the electric vehicle when the electric vehicle is in motion, wherein the driving parameters include the principal acceleration and the limit acceleration includes the positive limit acceleration and the negative limit acceleration.

[0088] The first judgment module 200 is used to determine whether the electric vehicle has been involved in a collision based on the electric vehicle's driving parameters and maximum acceleration.

[0089] The second parameter acquisition module 300 is used to acquire the lateral acceleration and offset of the electric vehicle when the electric vehicle is involved in a collision.

[0090] The second judgment module 400 is used to determine whether the electric vehicle has overturned based on the lateral acceleration and offset.

[0091] The storage module 500 is used to acquire environmental video and store environmental video and driving parameters when the electric vehicle overturns.

[0092] It should be noted that the functions and corresponding technical effects of each module in the safety monitoring device provided in this embodiment can be referred to the description of the specific implementation methods in the various embodiments of the electric vehicle safety monitoring method of this invention. For the sake of brevity, they will not be repeated here.

[0093] Example 4

[0094] Based on the same inventive concept, referring to Figure 2 The hardware structure diagram shows that this embodiment provides a safety monitoring device, which may include a processor and a memory. The memory stores a safety monitoring program. When the safety monitoring program is executed by the processor, it implements all or part of the steps of the various embodiments of the electric vehicle safety monitoring method of the present invention.

[0095] Specifically, security monitoring equipment refers to terminal devices or network devices that can achieve network connectivity. These can be terminal devices such as mobile phones, computers, tablets, and portable computers, or network devices such as servers and cloud platforms.

[0096] It is understood that security monitoring equipment may also include a communication bus, a user interface, and a network interface. The communication bus is used to establish communication between these components; the user interface is used to connect to clients and communicate data with them; the user interface may include output units such as a display screen and input units such as a keyboard; the network interface is used to connect to the backend server and communicate data with it; the network interface may include input / output interfaces, such as standard wired interfaces and wireless interfaces.

[0097] Memory is used to store various types of data, which may include, for example, instructions for any application or method in the security monitoring device, as well as application-related data. Memory can be implemented from any type of volatile or non-volatile storage device or a combination thereof, such as Static Random Access Memory (SRAM), Random Access Memory (RAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic storage, flash memory, magnetic disk or optical disk. Optionally, memory can also be a processor-independent storage device.

[0098] The processor is used to call the safety monitoring program stored in the memory and execute the electric vehicle safety monitoring method as described above. The processor may be an application-specific integrated circuit (ASIC), a digital signal processor (DSP), a digital signal processing device (DSPD), a programmable logic device (PLD), a field-programmable gate array (FPGA), a controller, a microcontroller, a microprocessor, or other electronic components, and is used to execute all or part of the steps of the various embodiments of the electric vehicle safety monitoring method described above.

[0099] Example 5

[0100] Based on the same inventive concept, this embodiment provides a computer-readable storage medium, such as flash memory, hard disk, multimedia card, card-type memory (e.g., SD or DX memory), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), magnetic memory, disk, optical disk, server, etc. The storage medium stores a computer program, which can be executed by one or more processors. When the computer program is executed by the processor, it can implement all or part of the steps of the various embodiments of the electric vehicle safety monitoring method of the present invention.

[0101] It should be noted that the sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above embodiments are only optional embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made under the inventive concept of the present invention using the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are all included within the patent protection scope of the present invention.

Claims

1. A method for safety monitoring of electric vehicles, characterized in that, The method includes: When the electric vehicle is in motion, the driving parameters and limit acceleration of the electric vehicle are acquired. The driving parameters include the main acceleration, speed and throttle voltage output value, and the limit acceleration includes the positive limit acceleration and the negative limit acceleration. Based on the electric vehicle's driving parameters and maximum acceleration, determine whether the electric vehicle has been involved in a collision, including: When the main acceleration is detected to be greater than the reverse limit acceleration and the speed is less than or equal to the second threshold, it is determined that the electric vehicle has been involved in a collision; when the throttle voltage output value is detected to remain unchanged, but the main acceleration is greater than the positive limit acceleration and the speed increases, it is determined that the electric vehicle has been involved in a collision. When the electric vehicle is involved in a collision, the lateral acceleration and offset of the electric vehicle are obtained; Determining whether the electric vehicle has overturned based on the lateral acceleration and offset includes: When both the lateral acceleration and the offset change, it is determined that the electric vehicle has overturned; when neither the lateral acceleration nor the offset changes, or only the lateral acceleration or only the offset changes, it is determined that the electric vehicle has not overturned. The system acquires environmental video and stores the environmental video and driving parameters when the electric vehicle overturns.

2. The electric vehicle safety monitoring method as described in claim 1, characterized in that, The steps for determining whether the electric vehicle has overturned based on the lateral acceleration and offset include: When the detected change in lateral acceleration is greater than the fourth threshold and the offset is greater than the fifth threshold, it is determined that the electric vehicle has overturned.

3. The electric vehicle safety monitoring method as described in claim 1, characterized in that, The steps following the acquisition of environmental video and storage of environmental video and driving parameters when the electric vehicle overturns include: The vehicle controller is used to test the system and hardware of the electric vehicle and output the test results. A safety accident problem analysis report is generated using the test results and driving parameters.

4. A safety monitoring device applied to the electric vehicle safety monitoring method according to any one of claims 1 to 3, characterized in that, The device includes: The first parameter acquisition module is used to acquire the driving parameters and limit acceleration of the electric vehicle when the electric vehicle is in motion, wherein the driving parameters include the principal acceleration and the limit acceleration includes the positive limit acceleration and the negative limit acceleration. The first judgment module is used to determine whether the electric vehicle has been involved in a collision based on the electric vehicle's driving parameters and maximum acceleration. The second parameter acquisition module is used to acquire the lateral acceleration and offset of the electric vehicle when the electric vehicle is involved in a collision. The second judgment module is used to determine whether the electric vehicle has overturned based on the lateral acceleration and the offset, including: determining that the electric vehicle has overturned when both the lateral acceleration and the offset have changed; determining that the electric vehicle has not overturned when neither the lateral acceleration nor the offset has changed, or when only the lateral acceleration or only the offset has changed. The storage module is used to acquire environmental video and store environmental video and driving parameters when the electric vehicle overturns.

5. A security monitoring device, characterized in that, The safety monitoring device includes a processor and a memory. The memory stores a safety monitoring program. When the safety monitoring program is executed by the processor, it implements the electric vehicle safety monitoring method as described in any one of claims 1 to 3.

6. A computer-readable storage medium, characterized in that, The storage medium stores a computer program, which, when executed by one or more processors, implements the electric vehicle safety monitoring method as described in any one of claims 1 to 3.

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