CN115909536A - Driving video processing method, vehicle-mounted terminal and computer storage medium - Google Patents
Driving video processing method, vehicle-mounted terminal and computer storage medium Download PDFInfo
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Abstract
The invention discloses a driving video processing method, a vehicle-mounted terminal and a computer storage medium. A driving video processing method is applied to a vehicle. Acquiring the distance between a target object and a vehicle and the speed of the target object approaching the vehicle; if distance and speed accord with the preset condition, then control vehicle event data recorder on the vehicle and carry out urgent video recording action, urgent video recording action includes: storing current driving video data of the driving recorder as a first video file; controlling the automobile data recorder to continuously record automobile data as a second video file; and storing the first video file to an emergency video area. The method and the device can timely and effectively identify the collision risk before the vehicle collides, store the video file recorded with the collision event into the locking area, avoid the problems that the video file is incomplete and the video file is not stored into the locking area when the vehicle collides violently, ensure the integrity of the information record when the emergency occurs, and provide a basis for later analysis of the collision accident reason.
Description
Technical Field
The invention relates to the technical field of vehicle safety monitoring, in particular to a driving video processing method, a vehicle-mounted terminal and a computer storage medium.
Background
Many vehicle event data recorders have the urgent video recording function in the current market, and its effect is when driver's urgent brake or vehicle bump, leave the video at that time in the locking area for this video file can not be covered when the memory card is full, and important video recording content can be protected better to this function.
However, in the prior art, the emergency video recording function is generally triggered by monitoring a change in the value of an acceleration sensor on the vehicle. An acceleration threshold value A is usually set, when the acceleration is detected to be larger than the threshold value A, the MP4 file currently being recorded is marked as a locked file, then the video file is immediately switched to the next video file, and the locked file is stored in a locked area. In the above-described aspect, if it is the case that the vehicle has collided, the time at which the acceleration sensor detects the collision is necessarily slower than the time at which the real collision occurs. If a particularly violent collision occurs, the driving recorder is powered off or damaged, and further the situation that the video recording is abnormally terminated before the driving recorder senses violent change of the acceleration can occur. Since the file header of the MP4 file is written into the file after the video recording is finished, the abnormal MP4 file lacks the file header, so that the MP4 file cannot be played, and the MP4 file cannot be stored in the locked area due to the damage of the automobile data recorder.
Disclosure of Invention
The invention aims to provide a driving video processing method, a vehicle-mounted terminal and a computer storage medium, which can effectively identify collision risks in time before a vehicle collides, store a video file recorded with a collision event in a locking area, avoid the problems of incomplete video file and no video file stored in the locking area caused by severe collision of the vehicle, ensure the integrity of information record when an emergency occurs, and provide a basis for later analysis of the reason of the collision event.
In order to solve the technical problem, the application provides a driving video processing method, which is applied to a terminal and comprises the following steps:
acquiring the distance between a target object and the vehicle and the speed of the target object close to the vehicle;
if the distance and the speed meet preset conditions, controlling a vehicle event data recorder on the vehicle to execute an emergency video recording action, wherein the emergency video recording action comprises:
storing the current driving video data of the driving recorder as a first video file;
controlling the automobile data recorder to continuously record automobile data as a second video file;
and storing the first video file to an emergency video area.
Wherein the obtaining of the distance between the target object and the vehicle and the speed of the target object approaching the vehicle comprises the following steps:
acquiring the distance between the target object and the vehicle;
and acquiring the speed of the target object approaching the vehicle in response to the fact that the distance between the target object and the vehicle is smaller than or equal to the preset distance.
After the distance between the target object and the vehicle is acquired, the method further comprises the following steps:
acquiring a first time point of a preset first distance between the vehicle and the target object;
acquiring a second time point of a preset second distance between the vehicle and the target object, wherein the preset second distance is smaller than the preset first distance;
and determining the speed of the target object approaching the vehicle according to the difference value of the second time point and the first time point.
The preset condition comprises that the difference value between the second time point and the first time point is smaller than or equal to a preset difference value.
After the automobile data recorder on the vehicle is controlled to execute the emergency video recording action, the method further comprises the following steps of:
and if the distance and/or the speed of the target object approaching the vehicle do not accord with the preset condition, controlling the automobile data recorder to close the emergency video recording action.
The preset conditions are determined according to at least one of the vehicle type, the vehicle mass, the vehicle volume, the brake performance, the tire grip, the wind resistance, the road condition and the weather.
The method comprises the following steps of obtaining driving video data of a vehicle in multiple directions by the driving recorder, and further comprises the following steps:
determining the direction of the target object;
and executing an emergency video recording action on the driving video recording data in the direction of the target object.
The present application further provides a vehicle-mounted terminal, including:
at least one processor;
at least one memory coupled to the at least one processor and storing instructions for execution by the at least one processor, the instructions when executed by the at least one processor cause the in-vehicle terminal to perform the driving video processing method as described above.
The present application further provides a computer storage medium having computer program instructions stored thereon; the computer program instructions, when executed by a processor, implement the driving video processing method as described above.
The driving video processing method, the vehicle-mounted terminal and the computer storage medium are applied to a vehicle and comprise the following steps of: acquiring the distance between a target object and a vehicle and the speed of the target object approaching the vehicle; if the distance and the speed accord with preset conditions, controlling a vehicle event data recorder on the vehicle to execute an emergency video recording action, wherein the emergency video recording action comprises the following steps: storing current driving video data of the driving recorder as a first video file; controlling the automobile data recorder to continuously record automobile data as a second video file; and storing the first video file to an emergency video area. In this way, this application can in time and discern the collision risk effectively before the vehicle bumps to the video file that will take notes the collision incident deposits the locking region, avoids the video file that leads to when the vehicle bumps violently incomplete and the video file does not deposit the problem in locking region, and the integrality of information record when guaranteeing the emergency and taking place provides the foundation for later stage analysis collision accident reason.
The foregoing description is only an overview of the technical solutions of the present application, and in order to make the technical means of the present application more clearly understood, the present application may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present application more clearly understood, the following preferred embodiments are specifically described below with reference to the accompanying drawings.
Drawings
Fig. 1 is a flowchart illustrating a driving recording processing method according to a first embodiment of the present invention;
fig. 2 is a second flowchart of the driving video recording processing method according to the first embodiment of the present invention;
fig. 3 is a scene schematic diagram of a driving video processing method according to a first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a vehicle-mounted terminal according to a second embodiment of the present invention.
Detailed Description
The following embodiments are provided to illustrate the present disclosure, and other advantages and effects will be apparent to those skilled in the art from the disclosure.
In the following description, reference is made to the accompanying drawings that describe several embodiments of the application. It is to be understood that other embodiments may be utilized and that mechanical, structural, electrical, and operational changes may be made without departing from the spirit and scope of the present application. The following detailed description is not to be taken in a limiting sense, and the scope of embodiments of the present application is defined only by the claims of the issued patent. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
Although the terms first, second, etc. may be used herein to describe various elements in some instances, these elements should not be limited by these terms. These terms are only used to distinguish one element from another.
Also, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes" and/or "including," when used in this specification, specify the presence of stated features, steps, operations, elements, components, items, species, and/or groups, but do not preclude the presence, or addition of one or more other features, steps, operations, elements, components, items, species, and/or groups thereof. The terms "or" and/or "as used herein are to be construed as inclusive or meaning any one or any combination. Thus, "a, B or C" or "a, B and/or C" means "any of the following: a; b; c; a and B; a and C; b and C; A. b and C ". An exception to this definition will occur only when a combination of elements, functions, steps or operations are inherently mutually exclusive in some way.
Fig. 1 is a flowchart illustrating a driving video recording processing method according to a first embodiment of the present invention. Fig. 2 is a second flowchart of the driving recording processing method according to the first embodiment of the present invention. As shown in fig. 1 and fig. 2, a driving video processing method provided in an embodiment of the present invention includes:
step 201: the distance between the target object and the vehicle and the speed of the target object close to the vehicle are obtained.
Step 202: and if the distance and the speed meet the preset conditions, controlling a vehicle event data recorder on the vehicle to execute an emergency video recording action.
The emergency video recording action includes:
step 301: the current driving video data of the driving recorder are stored as a first video file.
Step 302: and controlling the automobile data recorder to continuously record the automobile video data as a second video file.
Step 303: and storing the first video file to an emergency video area.
The target object may be an obstacle around the vehicle, which may be a movable obstacle such as another motor vehicle, a non-motor vehicle, a pedestrian or an animal, or a fixed obstacle such as a green belt, a road block, or a street lamp. In the present embodiment, distance sensors are installed in front of and behind and/or on both sides of the vehicle to detect the distance between the vehicle and the peripheral obstacle. According to the driving video processing method, the distance between obstacles around the vehicle and the speed of the obstacles close to the vehicle are detected through the distance sensor, when the distance and the speed meet preset conditions, the corresponding obstacles are determined to be target objects, meanwhile, the emergency video function of the driving recorder is triggered, and collision events are predicted and recorded in time. According to the method and the device, the acceleration sensor is not needed to be used for predicting the occurrence of the collision event, so that the problems that the video files are incomplete and the video files are not stored in the locking area when the vehicle collides violently can be solved.
In other embodiments, identifying the obstacle and obtaining the distance between the obstacle and the vehicle may also be implemented by image recognition techniques.
In one embodiment, obtaining the distance between the target object and the vehicle and the speed of the target object approaching the vehicle comprises the following steps:
acquiring the distance between a target object and a vehicle;
and acquiring the speed of the target object approaching the vehicle in response to the fact that the distance between the target object and the vehicle is smaller than or equal to the preset distance.
In this embodiment, the distance between the target object and the vehicle is acquired in real time by the distance sensor. And judging whether the distance between the target object and the vehicle is smaller than or equal to a preset distance. If so, the target object is indicated to have the collision risk with the vehicle. And then, continuously judging the speed of the target object approaching the vehicle to further determine the probability of the occurrence of the collision event, and avoiding the redundant emergency video files from occupying the memory space. In other embodiments, whether to start the emergency recording function of the automobile data recorder may be determined only according to the distance between the target object and the vehicle. And when the distance between the target object and the vehicle is smaller than or equal to the preset distance, immediately starting an emergency video recording function to ensure the whole process of timely recording the collision event.
In one embodiment, after obtaining the distance between the target object and the vehicle, the method further includes the following steps:
acquiring a first time point when the vehicle is away from a target object by a preset first distance;
acquiring a second time point when the vehicle is away from the target object by a preset second distance, wherein the preset second distance is smaller than the preset first distance;
and determining the speed of the target object approaching the vehicle according to the difference value between the second time point and the first time point.
In an embodiment, the preset condition includes that a difference between the second time point and the first time point is less than or equal to a preset difference.
In this embodiment, the speed of the target object approaching the vehicle is obtained by the distance sensor and the timing module. It should be noted that, as the vehicle and the surrounding obstacle approach each other, the time point T1 at that time is recorded when the distance between them reaches D1, and the time point T2 at that time is recorded when the distance between them shortens to D2, and if T2-T1 is smaller than the threshold T3, it indicates that the approaching speed of the vehicle and the surrounding obstacle is too fast, and there is a high possibility of collision, and at this time, an emergency recording signal is sent to the drive recorder. After the automobile data recorder triggers the emergency video recording function, the automobile data recorder switches the current video recording file, stores the current automobile data of the automobile data recorder as a first video recording file, and stores the first video recording file to an emergency video recording area. And meanwhile, controlling the automobile data recorder to continuously record the automobile video data as a second video file.
For example, D1 is a distance from a far point of the vehicle, for example, 3 meters, D2 is a distance from a near point of the vehicle, for example, 0.5 meters, and T3 is a time threshold required for the obstacle to move from D1 to D2. The preset condition can be determined according to at least one of the vehicle type, the vehicle mass, the vehicle volume, the braking performance, the tire grip, the wind resistance, the road condition and the weather. During actual implementation, after a specific vehicle type and/or a specific test environment can be set, the numerical value of the preset condition is measured according to the experimental data so as to ensure that the preset condition meets the actual condition.
In one embodiment, the speed of the target object approaching the vehicle is greater than or equal to a predetermined speed. It is detected whether the speed coincides with the current vehicle speed. If the vehicle moving direction is consistent with the target object moving direction, a collision alarm is sent out to remind a driver to take emergency braking measures.
In one embodiment, after controlling a vehicle event data recorder on a vehicle to execute an emergency video recording action, the method further comprises the following steps:
and if the distance and/or the speed of the target object approaching the vehicle do not meet the preset conditions, controlling the automobile data recorder to close the emergency video recording action.
In this embodiment, after the automobile data recorder starts the emergency video recording function, the distance between the vehicle and the target object is continuously acquired through the distance sensor. If the distance between the vehicle and the target object is larger than the preset distance and/or the speed of the vehicle approaching the target object is determined to be smaller than the preset value according to the change of the distance between the vehicle and the target object, the probability that the target object collides with the vehicle is judged to be low, and the emergency video recording function of the automobile data recorder can be closed. In other embodiments, it may also be determined whether the vehicle is moving away from the target object based on a change in the distance of the vehicle from the target object. If so, judging that the probability of collision between the target object and the vehicle is low at the moment, closing the emergency video recording function of the automobile data recorder,
in one embodiment, the driving recorder acquires driving video data of the vehicle in multiple directions, and the method further comprises the following steps:
determining the direction of a target object;
and carrying out emergency video recording action on the driving video recording data in the direction of the target object.
In this embodiment, the plurality of distance sensors are mounted on the vehicle at locations including, but not limited to, the periphery and roof of the vehicle body. Each sensor simultaneously detects the real-time distance between the surrounding obstacles and the vehicle, when a certain distance sensor detects that an obstacle meets the preset condition of a target object, the direction of the obstacle is determined, and the automobile data recorder is controlled to acquire the driving video data in the direction of the obstacle for executing the emergency video action. Specifically, the shooting angle of the camera corresponding to the automobile data recorder can be adjusted according to the direction data of the target object determined by the distance sensor, so that a clear obstacle image can be obtained. In other embodiments, the automobile data recorder can simultaneously associate a plurality of cameras distributed at different positions of the automobile body, then determine at least one corresponding camera according to the direction data of the target object determined by the distance sensor, and start the camera to acquire the image of the obstacle. Certainly, after the emergency video recording function is started, a plurality of cameras can be started to shoot images of obstacles at different angles, and complete information of collision events can be accurately recorded.
Fig. 3 is a scene schematic diagram of a driving video processing method according to a first embodiment of the present invention. As shown in fig. 3, the obstacle is located in the forward direction of the vehicle. The distance between the obstacle and the vehicle in fig. 3 (a) is larger than the distance between the obstacle and the vehicle in fig. 3 (b). If the distance between the obstacle and the vehicle in fig. 3 (a) is smaller than the preset distance and the obstacle remains stationary during the vehicle traveling, the vehicle speed corresponds to the approaching speed of the vehicle and the obstacle. If the vehicle speed is greater than the preset speed, an emergency recording function of the automobile data recorder is started, and a camera in front of the vehicle is started to record the video according to the position of the obstacle.
The driving video processing method of the embodiment is applied to a vehicle and comprises the following steps: acquiring the distance between a target object and a vehicle and the speed of the target object close to the vehicle; if the distance and the speed accord with preset conditions, controlling a vehicle event data recorder on the vehicle to execute an emergency video recording action, wherein the emergency video recording action comprises the following steps: storing current driving video data of a driving recorder as a first video file; controlling the automobile data recorder to continuously record automobile data as a second video file; and storing the first video file to an emergency video area. Through the mode, the collision risk can be timely and effectively identified before the vehicle collides, the video file recorded with the collision event is stored in the locking area, the problems that the video file is incomplete and the video file is not stored in the locking area when the vehicle collides violently are avoided, the integrity of the information record when the emergency occurs is guaranteed, and the basis is provided for later analysis of the collision accident reason.
Second embodiment
A second embodiment of the present invention provides a vehicle-mounted terminal, including: a processor and a memory, wherein the processor is configured to execute a computer program stored in the memory to implement the steps of the driving video processing method described in the first embodiment.
Fig. 4 is a schematic structural diagram of a vehicle-mounted terminal according to an embodiment of the present invention. The in-vehicle terminal shown in fig. 4 is only an example, and should not bring any limitation to the functions and applicable scope of the embodiments of the present disclosure. As shown in fig. 4, the present application also provides an in-vehicle terminal 600 including a processing unit 601 that can execute the method of the embodiments of the present disclosure according to a program stored in a Read Only Memory (ROM) 602 or a program loaded from a storage section 608 into a Random Access Memory (RAM) 603. Processor 601 may include, for example, a general purpose microprocessor (e.g., a CPU), an instruction processor and/or associated chipset, and/or a special purpose microprocessor (e.g., an Application Specific Integrated Circuit (ASIC)), among others. The processor 601 may also include onboard memory for caching purposes. Processor 601 may include a single processing unit or multiple processing units for performing different actions of a method flow according to embodiments of the disclosure.
In the RAM603, various programs and data necessary for the operation of the in-vehicle terminal 600 are stored. The processor 601, the ROM602 and the RAM603 are connected to each other via a bus 604. The processor 601 performs various operations of the method flows according to the embodiments of the present disclosure by executing programs in the ROM602 and/or RAM 603. Note that the above-described programs may also be stored in one or more memories other than the ROM602 and the RAM 603. The processor 601 may also perform various operations of the method flows according to embodiments of the present disclosure by executing programs stored in one or more memories.
According to an embodiment of the present disclosure, the in-vehicle terminal 600 may further include an input/output (I/O) interface 605, the input/output (I/O) interface 605 also being connected to the bus 604. The in-vehicle terminal 600 may also include one or more of the following components connected to an input/output (I/O) interface 605: an input portion 606 including a keyboard, a mouse, and the like; an output portion 607 including a display such as a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), and the like, and a speaker; a storage section 608 including a hard disk and the like; and a communication section 609 including a network interface card such as a LAN card, a modem, or the like. The communication section 609 performs communication processing via a network such as the internet. Further, a drive, removable media. A computer program such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like can also be connected to the input/output (I/O) interface 605 as necessary so that the computer program read out therefrom is installed in the storage section 608 as necessary.
Method flows according to embodiments of the present disclosure may be implemented as computer software programs. For example, an embodiment of the present disclosure includes a computer program product. Comprising a computer program, carried on a computer readable storage medium, the computer program comprising program code for performing the method illustrated in the flow chart. In such an embodiment, the computer program may be downloaded and installed from a network through the communication section 609, and/or installed from a removable medium. The computer program, when executed by the processor 601, performs the above-described functions defined in the system of the embodiments of the present disclosure. The above described systems, devices, apparatuses, modules, units, etc. may be implemented by computer program modules according to embodiments of the present disclosure.
The present application further provides a computer storage medium having computer program instructions stored thereon; when executed by a processor, the computer program instructions implement the driving video processing method according to the above embodiment.
In actual implementation, the computer storage medium is applied to the in-vehicle terminal shown in fig. 4.
The above embodiments are merely illustrative of the principles and utilities of the present application and are not intended to limit the present application. Any person skilled in the art can modify or change the above-described embodiments without departing from the spirit and scope of the present application. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed in the present application shall be covered by the claims of the present application.
Claims (9)
1. A driving video processing method is applied to a vehicle and is characterized by comprising the following steps:
acquiring the distance between a target object and the vehicle and the speed of the target object close to the vehicle;
if the distance and the speed accord with preset conditions, controlling a driving recorder on the vehicle to execute an emergency video recording action, wherein the emergency video recording action comprises the following steps:
storing the current driving video data of the driving recorder as a first video file;
controlling the automobile data recorder to continuously record automobile data as a second video file;
and storing the first video recording file to an emergency video recording area.
2. The driving video processing method according to claim 1, wherein the step of obtaining the distance between the target object and the vehicle and the speed of the target object approaching the vehicle comprises the steps of:
acquiring the distance between the target object and the vehicle;
and acquiring the speed of the target object approaching the vehicle in response to the fact that the distance between the target object and the vehicle is smaller than or equal to the preset distance.
3. The driving video processing method according to claim 1, further comprising the following steps after the distance between the target object and the vehicle is obtained:
acquiring a first time point of a preset first distance between the vehicle and the target object;
acquiring a second time point of a preset second distance between the vehicle and the target object, wherein the preset second distance is smaller than the preset first distance;
and determining the speed of the target object approaching the vehicle according to the difference value of the second time point and the first time point.
4. The driving video processing method according to claim 3, wherein the preset condition includes that a difference between the second time point and the first time point is less than or equal to a preset difference.
5. The driving video recording processing method according to claim 1, further comprising the following steps after controlling a driving recorder on the vehicle to perform an emergency video recording action:
and if the distance and/or the speed of the target object approaching the vehicle do not accord with the preset condition, controlling the automobile data recorder to close the emergency video recording action.
6. The driving video processing method according to claim 1, wherein the preset condition is determined according to at least one of a vehicle type, a vehicle mass, a vehicle volume, a braking performance, a tire grip, a wind resistance, a road condition, and weather.
7. The driving video processing method according to claim 1, wherein the driving recorder obtains driving video data of the vehicle in multiple directions, and the method further comprises the following steps:
determining the direction of the target object;
and executing an emergency video recording action on the driving video recording data in the direction of the target object.
8. A vehicle-mounted terminal characterized by comprising:
at least one processor;
at least one memory coupled to the at least one processor and storing instructions for execution by the at least one processor, the instructions when executed by the at least one processor causing the vehicle terminal to perform the driving video processing method of any of claims 1-7.
9. A computer storage medium having computer program instructions stored thereon; the computer program instructions, when executed by a processor, implement a driving video processing method as claimed in any one of claims 1 to 7.
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