A comprehensive automatic driving recording method and device

Abstract

The present application discloses an all-round automatic driving recording method and device, which obtains the distance of the approaching objects around the target vehicle; if the distance of the approaching objects is less than a preset distance, activates the camera on the side where the approaching objects are located; calculates the shooting frame rate of the camera based on the distance of the approaching objects, so that the camera records the movements of the approaching objects at the shooting frame rate; and sends the recorded video of the approaching objects to a driving recorder. This method and device can solve the problem that the current driving recorders cannot record events occurring to the side, rear, and side of the front of the vehicle. It can automatically record events occurring to the side, rear, and side of the front of the vehicle, which helps to clarify the accident responsibility and protect the legitimate rights and interests of the driver in the event of an accident.

Description

Technical Field

[0001] The present invention relates to the field of computer technology, and in particular to a method and device for omnidirectional automatic driving recording. Background Art

[0002] A dashcam is a device that records images, sounds, and other relevant information while a vehicle is in motion. Installing a dashcam records the entire driving process, providing evidence. It can also be used for parking monitoring. However, when a dashcam is installed, the video footage must not be cropped. Cropping can render it useless in the event of an accident. This also serves to prevent the inevitable scams that plague today's society.

[0003] However, current driving recorders are usually installed in the front of the cab to record events that occur in front of the vehicle. However, they are unable to record events that occur to the side, rear, or front of the vehicle. Summary of the Invention

[0004] This embodiment provides an all-round automatic driving recording method and device, which can solve the problem that existing driving recorders cannot record events occurring to the side, rear, and front of the vehicle.

[0005] In a first aspect, this embodiment provides a method for omnidirectional automatic driving recording, characterized by comprising:

[0006] Obtaining the relative distance between the target vehicle and the approaching objects around the target vehicle;

[0007] If the relative distance is less than a preset distance, activating the camera on the side where the approaching object is located;

[0008] calculating a shooting frame rate of the camera based on the relative distance, and causing the camera to record the movement of the approaching object at the shooting frame rate to form a recorded video;

[0009] The recorded video is sent to a driving recorder.

[0010] In some embodiments, before obtaining the distance of approaching objects around the target vehicle, it also includes: detecting whether the driving recorder and the camera are powered on; if the driving recorder and the camera are powered on, a normal driving record system prompt is issued; if the driving recorder and the camera are not powered on, an abnormal driving record system prompt is issued.

[0011] In some embodiments, the target vehicle is provided with a side camera, a side corner camera and a rear camera, and the preset distance includes a side preset distance, a side corner preset distance and a rear preset distance; if the relative distance is less than the preset distance, the camera on the side where the approaching object is located is activated, including: if the approaching object is located on the side of the target vehicle and the relative distance is less than the side preset distance, the side camera on the side where the approaching object is located is activated; if the approaching object is located on the side corner of the target vehicle and the relative distance is less than the side corner preset distance, the side corner camera on the side where the approaching object is located is activated; if the approaching object is located behind the target vehicle and the relative distance is less than the rear preset distance, the rear camera is activated; wherein, the side preset distance is less than the side corner preset distance, and the rear preset distance is less than the side corner preset distance. In some embodiments,

[0012] In some embodiments, if the relative distance is less than a preset distance, the camera on the side where the approaching object is located is activated, and the method further includes: detecting the operating status of the target vehicle; if the target vehicle is in a stationary state, the stationary state recording mode is activated, and in the stationary state recording mode, if the distance of the approaching object is less than the stationary preset distance, the camera on the side where the approaching object is located is activated; if the target vehicle is in a moving state, the moving state recording mode is activated, and in the stationary state recording mode, if the distance of the approaching object is less than the preset distance, the camera on the side where the approaching object is located is activated; wherein, the stationary preset distance is less than the preset distance.

[0013] In some embodiments, if the relative distance is less than a preset distance, activating the camera on the side where the approaching object is located also includes: if the relative distance is less than a danger distance, activating the camera on the side where the approaching object is located and issuing a danger alarm.

[0014] In some embodiments, the camera's shooting frame rate is calculated based on the relative distance, so that the camera records the movement of the approaching object at the shooting frame rate to form a recorded video, and further includes: if the relative distance change range is less than a preset change threshold within a preset time period, lowering or turning off the camera on the side where the approaching object is located.

[0015] In some embodiments, sending the recorded video to a driving recorder further includes: sending the recorded video to a display screen of the target vehicle, and displaying the recorded video and a current display page of the display screen in a split-screen manner.

[0016] In some embodiments, sending the recorded video to a driving recorder further includes: sending the recorded video to a user terminal or a cloud for storage, and deleting the recorded video in the driving recorder.

[0017] In a second aspect, this embodiment provides an omnidirectional automatic driving recorder, characterized by comprising:

[0018] A distance detection module is used to obtain the relative distance between the target vehicle and the approaching objects around the target vehicle;

[0019] a distance determination module, configured to activate a camera on the side where the approaching object is located if the relative distance is less than a preset distance;

[0020] a frame rate calculation module, configured to calculate a shooting frame rate of the camera based on the relative distance, so that the camera records the movement of the approaching object at the shooting frame rate to form a recorded video; and

[0021] The recording processing module is used to send the recorded video to the driving recorder.

[0022] In a third aspect, this embodiment provides an electronic device, including a processor and a memory;

[0023] The processor is configured to execute the steps of the method described in any embodiment of the first aspect by calling the program or instructions stored in the memory.

[0024] The present application provides an all-round automatic driving recording method and device, which obtains the distance of the approaching objects around the target vehicle; if the distance of the approaching object is less than a preset distance, activates the camera on the side where the approaching object is located; calculates the shooting frame rate of the camera based on the distance of the approaching object, so that the camera records the movement of the approaching object at the shooting frame rate; and sends the recorded video of the approaching object to a driving recorder. This method and device can solve the problem that the current driving recorder cannot record events occurring to the side, rear, and side of the vehicle. It can automatically record events occurring to the side, rear, and side of the vehicle, which helps to clarify accident responsibility and protect the legitimate rights and interests of the driver in the event of an accident. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A flowchart of an all-round automatic driving recording method provided in an embodiment of this specification;

[0026] Figure 2 A schematic diagram of an all-round automatic driving recorder provided in an embodiment of this specification;

[0027] Figure 3 A schematic diagram of an electronic device provided in an embodiment of this specification. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] A dashcam is a device that records images, sounds, and other relevant information while a vehicle is in motion. Installing a dashcam records the entire driving process, providing evidence. Those who enjoy it can also use it to document their journey through difficult and dangerous situations. Recording while driving, it simultaneously captures time, speed, and location, creating a truly unique experience. It can also be used at home to capture fun moments or as a home surveillance system. It can also be used for regular parking monitoring. When installing a dashcam, the video footage cannot be cropped; cropping can render it unavailable in the event of an accident. It also serves to prevent the inevitable scams and frauds of today's society.

[0030] However, current driving recorders are usually installed in the cab to record events in front of the vehicle, but cannot record events on the side, rear, front or rear of the vehicle. As a result, when a traffic accident occurs, it is difficult to clearly understand the course of the accident and determine the responsibility for the accident, which brings great inconvenience to the car owner.

[0031] In response to the above technical issues, such as Figure 1 As shown, this embodiment provides a full range of automatic driving recording method, including:

[0032] S101: Obtaining the relative distance between the target vehicle and the approaching objects around the target vehicle;

[0033] It should be noted that if you want to record events occurring around the target vehicle, you must first determine whether the conditions for triggering the recording of the target vehicle are met. Usually, the close distance between the target vehicle and the approaching object is the main cause of traffic accidents. Therefore, the relative distance between the target vehicle and the approaching object can be used to determine whether to record. The approaching object can be a vehicle, a person, or an animal.

[0034] It should be noted that the relative distance between the target vehicle and the approaching object is usually obtained through a distance sensor. The distance sensor may be an optical distance sensor, an infrared distance sensor, etc. This embodiment does not specifically limit the type of the distance sensor.

[0035] In some embodiments, before obtaining the relative distance between the approaching objects around the target vehicle and the target vehicle, it also includes: detecting whether the driving recorder, the camera and the distance sensor are powered on; if the driving recorder, the camera and the distance sensor are powered on, a normal prompt of the driving record system is issued; if the driving recorder, the camera and the distance sensor are not powered on, an abnormal prompt of the driving record system is issued.

[0036] It should be noted that after the vehicle is started, it is necessary to check whether the driving recorder, the camera and the distance sensor are working properly. After confirming that the driving recorder, the camera and the distance sensor are all powered on, normal driving can be carried out to avoid finding that the driving recorder or the camera is not turned on when checking the driving recorder after an accident.

[0037] It should be noted that the normal and abnormal prompts of the driving recorder system can be sent to the display screen of the target vehicle or to the user end in the form of pop-up windows. When the driving system is abnormal, the user must confirm before the vehicle can be driven normally to ensure that the abnormality of the driving recorder system has been understood by the user.

[0038] S102: If the relative distance is less than a preset distance, activate the camera on the side where the approaching object is located;

[0039] In some embodiments, the target vehicle is provided with a side camera, a side corner camera and a rear camera, and the preset distance includes a side preset distance, a side corner preset distance and a rear preset distance; if the relative distance is less than the preset distance, the camera on the side where the approaching object is located is activated, including: if the approaching object is located on the side of the target vehicle and the relative distance is less than the side preset distance, the side camera on the side where the approaching object is located is activated; if the approaching object is located on the side corner of the target vehicle and the relative distance is less than the side corner preset distance, the side corner camera on the side where the approaching object is located is activated; if the approaching object is located behind the target vehicle and the relative distance is less than the rear preset distance, the rear camera is activated; wherein, the side preset distance is less than the side corner preset distance, and the rear preset distance is less than the side corner preset distance.

[0040] It should be noted that in order to be able to record the vehicle in all directions, cameras need to be installed in multiple places on the vehicle body. The side cameras include a left side camera and a right side camera. The left side camera is set in the middle position of the left side of the target vehicle, and the right side camera is set in the middle position of the right side of the target vehicle; the side angle cameras include a left front camera, a right front camera, a left rear camera and a right rear camera. The left front camera is installed in the left front of the target vehicle, the right front camera is installed in the right front of the target vehicle, the left rear camera is installed in the left rear of the target vehicle, the right rear camera is installed in the right rear of the target vehicle, and the rear camera is installed in the middle position of the rear side of the target vehicle.

[0041] It should be noted that, in order to measure the distances of objects approaching the target vehicle from multiple directions respectively, a distance sensor is usually provided at the location of each camera to obtain accurate distance data.

[0042] It should be noted that, considering that there are often multiple vehicles driving side by side when the vehicle is driving, the side preset distance is usually set to be smaller than the side angle preset distance to avoid frequent activation and deactivation of the side camera. The side preset distance can be 0.5m-1.5m, the side angle preset distance can be 1.5m-3m, and the rear preset distance can be 0.5m-1.5m. If the side preset distance, the side angle preset distance and the rear preset distance are set too large, recording resources may be wasted. If the side preset distance, the side angle preset distance and the rear preset distance are set too small, the monitoring and recording effects cannot be achieved.

[0043] In some embodiments, if the relative distance is less than a preset distance, the camera on the side where the approaching object is located is activated, and the method further includes: detecting the operating status of the target vehicle; if the target vehicle is in a stationary state, the stationary state recording mode is activated, and in the stationary state recording mode, if the distance of the approaching object is less than the stationary preset distance, the camera on the side where the approaching object is located is activated; if the target vehicle is in a moving state, the moving state recording mode is activated, and in the stationary state recording mode, if the distance of the approaching object is less than the preset distance, the camera on the side where the approaching object is located is activated; wherein, the stationary preset distance is less than the preset distance.

[0044] It should be noted that when the vehicle is stationary, scratches or malicious damage to the vehicle by suspects may occur, and there is also a need to record them. Considering that the probability of an accident occurring when the vehicle is stationary is relatively low, the stationary preset distance can be made smaller than the preset distance to save resources.

[0045] In some embodiments, if the relative distance is less than a preset distance, activating the camera on the side where the approaching object is located also includes: if the relative distance is less than a danger distance, activating the camera on the side where the approaching object is located and issuing a danger alarm.

[0046] It should be noted that, in order to improve the safety of vehicle driving by utilizing the monitored and recorded information while recording events during vehicle driving, a danger distance can be set so that when the distance of the approaching object is less than the danger distance, the driver is reminded of the dangerous situation so that the driver can take timely countermeasures.

[0047] S103: calculating a shooting frame rate of the camera based on the relative distance, and causing the camera to record the movement of the approaching object at the shooting frame rate to form a recorded video;

[0048] It should be noted that when calculating the shooting frame rate of the camera, it can be selected to be calculated based on a linear function relationship. When the approaching object is far away from the target vehicle, using a lower frame rate for shooting can save resources while meeting the recording requirements. When the approaching object is close to the target vehicle, the possibility of an accident is greater and the time for an accident to occur is shorter. At this time, using a higher shooting frame rate for shooting can ensure the adequacy of the record to avoid the problem of unclear records.

[0049] It should be noted that, in addition to using a linear function relationship to calculate the shooting frame rate, other functions may also be considered for calculation, such as a power function, an interval function, and the like.

[0050] In some embodiments, the camera's shooting frame rate is calculated based on the relative distance, so that the camera records the movement of the approaching object at the shooting frame rate to form a recorded video, and further includes: if the relative distance change range is less than a preset change threshold within a preset time period, lowering or turning off the camera on the side where the approaching object is located.

[0051] It should be noted that, usually when a vehicle is driving, it may be driving on or close to the roadside. At this time, there may be a green belt or a guardrail next to the vehicle. In this case, the relative distance detected by the side distance sensor basically remains unchanged or changes slightly. In this case, since the probability of an accident on the green belt side or the guardrail side is relatively small, the shooting frame rate of the camera on this side can be reduced, or the camera on this side can be turned off. Usually, the preset change threshold is set to 0.5m-2m.

[0052] It should be noted that the resource weights allocated to the cameras in each direction can be obtained based on the relative distances of the approaching objects in multiple directions of the target vehicle, and then calculated based on the relative distances of the multiple approaching objects for reasonable recording.

[0053] It should be noted that the driving speed of the target vehicle can be obtained, and the preset distance and the shooting frame rate of the camera can be adjusted based on the driving speed. When the driving speed is high, the preset distance and the shooting frame rate of the camera are increased. When the driving speed is low, the preset distance and the shooting frame rate of the camera are reduced. Usually, a functional relationship between the speed and the preset distance (distance function relationship) and a functional relationship between the speed and the shooting frame rate (frame rate function relationship) can be established to adjust the preset distance and the shooting frame rate according to the functional relationship when the speed changes.

[0054] S104: Send the recorded video to a driving recorder.

[0055] It should be noted that sending the recorded video to the driving recorder can centrally process and store the received recorded video for further use.

[0056] In some embodiments, sending the recorded video to a driving recorder further includes: sending the recorded video to a display screen of the target vehicle, and displaying the recorded video and a current display page of the display screen in a split-screen manner.

[0057] It should be noted that splitting the recorded video and the current display page of the display screen allows the driver to clearly understand the current situation around the vehicle so that the driver can take timely action. When receiving multiple recorded videos of the approaching objects, the recorded videos of the multiple approaching objects can be mapped to the display screen of the target vehicle according to their actual distribution positions, so that the driver can intuitively understand the situation outside the vehicle.

[0058] In some embodiments, sending the recorded video to a driving recorder further includes: sending the recorded video to a user terminal or a cloud for storage, and deleting the recorded video in the driving recorder.

[0059] It should be noted that in order to facilitate users to view, save and reduce the memory resources of the driving recorder, the recorded video can be sent to the user terminal or the cloud for storage, and the recorded video in the recorder can be deleted. The recorded video can be sent in real time or at preset time intervals.

[0060] In summary, this embodiment provides an all-round automatic driving recording method and device, which obtains the distance of the approaching objects around the target vehicle; if the distance of the approaching object is less than a preset distance, the camera on the side where the approaching object is located is activated; the shooting frame rate of the camera is calculated based on the distance of the approaching object, so that the camera records the movement of the approaching object at the shooting frame rate; and the recorded video of the approaching object is sent to the driving recorder. This can solve the problem that the current driving recorder cannot record events occurring on the side, rear, and side of the vehicle. It can automatically record events occurring on the side, rear, and side of the vehicle, which helps to clarify the accident responsibility and protect the legitimate rights and interests of the driver in the event of an accident.

[0061] Second, as Figure 2 As shown, this embodiment provides an all-round automatic driving recorder, including:

[0062] The distance detection module 210 is used to obtain the relative distance between the target vehicle and the approaching objects around the target vehicle;

[0063] The distance determination module 220 is configured to activate the camera on the side where the approaching object is located if the relative distance is less than a preset distance;

[0064] a frame rate calculation module 230 for calculating a shooting frame rate of the camera based on the relative distance, so that the camera records the movement of the approaching object at the shooting frame rate to form a recorded video; and

[0065] The recording processing module 240 is used to send the recorded video to the driving recorder.

[0066] In some embodiments, before obtaining the distance of approaching objects around the target vehicle, it also includes: detecting whether the driving recorder and the camera are powered on; if the driving recorder and the camera are powered on, a normal driving record system prompt is issued; if the driving recorder and the camera are not powered on, an abnormal driving record system prompt is issued.

[0067] In some embodiments, the target vehicle is provided with a side camera, a side corner camera and a rear camera, and the preset distance includes a side preset distance, a side corner preset distance and a rear preset distance; if the relative distance is less than the preset distance, the camera on the side where the approaching object is located is activated, including: if the approaching object is located on the side of the target vehicle and the relative distance is less than the side preset distance, the side camera on the side where the approaching object is located is activated; if the approaching object is located on the side corner of the target vehicle and the relative distance is less than the side corner preset distance, the side corner camera on the side where the approaching object is located is activated; if the approaching object is located behind the target vehicle and the relative distance is less than the rear preset distance, the rear camera is activated; wherein, the side preset distance is less than the side corner preset distance, and the rear preset distance is less than the side corner preset distance. In some embodiments,

[0068] In some embodiments, if the relative distance is less than a preset distance, the camera on the side where the approaching object is located is activated, and the method further includes: detecting the operating status of the target vehicle; if the target vehicle is in a stationary state, the stationary state recording mode is activated, and in the stationary state recording mode, if the distance of the approaching object is less than the stationary preset distance, the camera on the side where the approaching object is located is activated; if the target vehicle is in a moving state, the moving state recording mode is activated, and in the stationary state recording mode, if the distance of the approaching object is less than the preset distance, the camera on the side where the approaching object is located is activated; wherein, the stationary preset distance is less than the preset distance.

[0069] In some embodiments, if the relative distance is less than a preset distance, activating the camera on the side where the approaching object is located also includes: if the relative distance is less than a danger distance, activating the camera on the side where the approaching object is located and issuing a danger alarm.

[0070] In some embodiments, the camera's shooting frame rate is calculated based on the relative distance, so that the camera records the movement of the approaching object at the shooting frame rate to form a recorded video, and further includes: if the relative distance change range is less than a preset change threshold within a preset time period, lowering or turning off the camera on the side where the approaching object is located.

[0071] In some embodiments, sending the recorded video to a driving recorder further includes: sending the recorded video to a display screen of the target vehicle, and displaying the recorded video and a current display page of the display screen in a split-screen manner.

[0072] In some embodiments, sending the recorded video to a driving recorder further includes: sending the recorded video to a user terminal or a cloud for storage, and deleting the recorded video in the driving recorder.

[0073] Thirdly, as Figure 3 As shown, this embodiment provides an electronic device 300, including:

[0074] Processor 320 and memory 310;

[0075] The processor 320 is configured to execute the steps of the method described in any embodiment of the first aspect by calling the program or instructions stored in the memory 310.

[0076] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced within the embodiments.

Claims

1. A full range of automatic driving recording method, characterized in that: include: Obtaining the relative distance between the target vehicle and the approaching objects around the target vehicle; If the relative distance is less than a preset distance, activating the camera on the side where the approaching object is located; calculating a shooting frame rate of the camera based on the relative distance, and causing the camera to record the movement of the approaching object at the shooting frame rate to form a recorded video; sending the recorded video to a driving recorder; The target vehicle is provided with a side camera, a side angle camera and a rear camera, and the preset distance includes a side preset distance, a side angle preset distance and a rear preset distance; If the relative distance is less than a preset distance, activating a camera on the side where the approaching object is located includes: If the approaching object is located on the side of the target vehicle and the relative distance is less than the preset side distance, activating the side camera on the side where the approaching object is located; If the approaching object is located at a side corner of the target vehicle and the relative distance is less than a preset side angle distance, activating a side angle camera on the side where the approaching object is located; If the approaching object is located behind the target vehicle and the relative distance is less than the rear preset distance, activating the rear camera; Wherein, the side preset distance is smaller than the side angle preset distance, and the rear preset distance is smaller than the side angle preset distance; Obtaining relative distances of the approaching object from the target vehicle in multiple directions; Calculating based on the relative distances of the plurality of approaching objects, obtaining resource weights allocated to the cameras at various positions, so as to perform recording in a reasonable manner; If the relative distance is less than a preset distance, activating a camera on the side where the approaching object is located further includes: detecting the operating status of the target vehicle; If the target vehicle is stationary, a stationary recording mode is activated. In the stationary recording mode, if the distance of the approaching object is less than a preset stationary distance, a camera on the side where the approaching object is located is activated; If the target vehicle is in motion, the motion state recording mode is activated; in the stationary state recording mode, if the distance of the approaching object is less than a preset distance, the camera on the side where the approaching object is located is activated; wherein the stationary preset distance is less than the preset distance; The step of calculating a shooting frame rate of the camera based on the relative distance, and causing the camera to record the movement of the approaching object at the shooting frame rate to form a recorded video, further includes: If the relative distance variation range is smaller than a preset variation threshold within a preset time period, the camera on the side where the approaching object is located is lowered or turned off.

2. The omnidirectional automatic driving recording method according to claim 1, characterized in that: Before obtaining the relative distance between the target vehicle and the approaching objects around the target vehicle, the method further includes: Detecting whether the driving recorder, the camera, and the distance sensor are powered on; If the driving recorder, the camera and the distance sensor are powered on, a driving recorder system normal prompt is issued; If the driving recorder, the camera and the distance sensor are not powered on, a driving recorder system abnormality prompt will be issued.

3. The omnidirectional automatic driving recording method according to claim 1, characterized in that: If the relative distance is less than a preset distance, activating a camera on the side where the approaching object is located further includes: If the relative distance is less than the danger distance, the camera on the side where the approaching object is located is activated and a danger alarm is issued.

4. The omnidirectional automatic driving recording method according to claim 1, characterized in that: The step of sending the recorded video to a driving recorder further includes: The recorded video is sent to a display screen of the target vehicle, and the recorded video and a current display page of the display screen are displayed in split screen.

5. The omnidirectional automatic driving recording method according to claim 1, characterized in that: The step of sending the recorded video to a driving recorder further includes: The recorded video is sent to the user terminal or the cloud for storage, and the recorded video in the driving recorder is deleted.

6. An all-round automatic driving recorder, characterized in that: include: A distance detection module is used to obtain the relative distance between the target vehicle and the approaching objects around the target vehicle; a distance determination module, configured to activate a camera on the side where the approaching object is located if the relative distance is less than a preset distance; a frame rate calculation module, configured to calculate a shooting frame rate of the camera based on the relative distance, so that the camera records the movement of the approaching object at the shooting frame rate to form a recorded video; as well as A recording processing module, configured to send the recorded video to a driving recorder; The target vehicle is provided with a side camera, a side angle camera and a rear camera, and the preset distance includes a side preset distance, a side angle preset distance and a rear preset distance; If the relative distance is less than a preset distance, activating a camera on the side where the approaching object is located includes: If the approaching object is located on the side of the target vehicle and the relative distance is less than the preset side distance, activating the side camera on the side where the approaching object is located; If the approaching object is located at a side corner of the target vehicle and the relative distance is less than a preset side angle distance, activating a side angle camera on the side where the approaching object is located; If the approaching object is located behind the target vehicle and the relative distance is less than the rear preset distance, activating the rear camera; Wherein, the side preset distance is smaller than the side angle preset distance, and the rear preset distance is smaller than the side angle preset distance; Obtaining relative distances of the approaching object from the target vehicle in multiple directions; Calculating based on the relative distances of the plurality of approaching objects, obtaining resource weights allocated to the cameras at various positions, so as to perform recording in a reasonable manner; If the relative distance is less than a preset distance, activating a camera on the side where the approaching object is located further includes: detecting the operating status of the target vehicle; If the target vehicle is stationary, a stationary recording mode is activated. In the stationary recording mode, if the distance of the approaching object is less than a preset stationary distance, a camera on the side where the approaching object is located is activated; If the target vehicle is in motion, the motion state recording mode is activated; in the stationary state recording mode, if the distance of the approaching object is less than a preset distance, the camera on the side where the approaching object is located is activated; wherein the stationary preset distance is less than the preset distance; The step of calculating a shooting frame rate of the camera based on the relative distance, and causing the camera to record the movement of the approaching object at the shooting frame rate to form a recorded video, further includes: If the relative distance variation range is smaller than a preset variation threshold within a preset time period, the camera on the side where the approaching object is located is lowered or turned off.

7. An electronic device, characterized in that: include: processor and memory; The processor is configured to execute the steps of the method according to any one of claims 1 to 6 by calling the program or instructions stored in the memory.

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