CN107995472B - System for automobile data recorder automatically adjusts image resolution ratio based on radar technology - Google Patents
System for automobile data recorder automatically adjusts image resolution ratio based on radar technology Download PDFInfo
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- CN107995472B CN107995472B CN201711420555.1A CN201711420555A CN107995472B CN 107995472 B CN107995472 B CN 107995472B CN 201711420555 A CN201711420555 A CN 201711420555A CN 107995472 B CN107995472 B CN 107995472B
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- 238000012544 monitoring process Methods 0.000 claims abstract description 40
- 238000001514 detection method Methods 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 5
- 230000008859 change Effects 0.000 claims description 30
- 230000001360 synchronised effect Effects 0.000 claims description 9
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000006855 networking Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
- G07C5/0841—Registering performance data
- G07C5/085—Registering performance data using electronic data carriers
- G07C5/0866—Registering performance data using electronic data carriers the electronic data carrier being a digital video recorder in combination with video camera
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Abstract
The invention relates to the technology of automobile data recorders. The invention aims to solve the problem that the shooting resolution of the existing automobile data recorder is fixed, and provides a system for automatically adjusting the image resolution of the automobile data recorder based on a radar technology, and the technical scheme can be summarized as follows: the method comprises the following steps that a radar detection device and a vehicle event data recorder are respectively connected with a cloud platform, the radar detection device monitors a vehicle running road surface in real time through a radar detection technology, and a monitoring result is obtained and uploaded to the cloud platform; the automobile data recorder is used for adjusting the resolution of the automobile data recorder according to the resolution adjusting instruction sent by the cloud platform, shooting and recording the video according to the resolution of the automobile data recorder, and recording time, speed and position in the video of the shooting and recording video; and the cloud platform is used for analyzing the received monitoring result according to the received monitoring result and sending a corresponding resolution adjustment instruction to the automobile data recorder according to the monitoring analysis result. The invention has the beneficial effects of ensuring the definition and being suitable for a vehicle event data recorder system.
Description
Technical Field
The invention relates to the technology of an automobile data recorder, in particular to the technology of adjusting image resolution of the automobile data recorder.
Background
With the continuous development of the car networking, the automobile data recorder has become one of the vehicle-mounted devices which are most popular to be installed by private car owners in recent years, at present, the hardware of the automobile data recorder is more and more developed, and the functions are more and more complex, for example, the functions of live video, social sharing and the like improve the user experience, but the real demand of a user is the essence of the automobile data recorder, and the practicability and the reliability of the automobile data recorder are still the measuring benchmarks of the automobile data recorder functional system in the car networking era.
The traditional automobile data recorder mainly has the functions of shooting and storing images and imprinting timestamps, video images are searched and extracted as evidences when complex roads or adjacent vehicles are in danger, but the traditional automobile data recorder only has one shooting resolution, the images shot and stored can be unavailable due to different conditions, for example, the evidence images are unavailable due to unexpected conditions such as picture loss caused by bumping, the storage space occupied by the high-resolution video images is too large, and the low-resolution video images are not clear, which is the problem of the existing automobile data recorder.
Disclosure of Invention
The invention aims to solve the problem that the shooting resolution of the conventional automobile data recorder is fixed, and provides a system for automatically adjusting the image resolution of the automobile data recorder based on a radar technology.
The invention solves the technical problem, adopts the technical scheme that the system for automatically adjusting the image resolution of the automobile data recorder based on the radar technology is characterized by comprising a radar detection device, the automobile data recorder and a cloud platform, wherein the radar detection device and the automobile data recorder are respectively connected with the cloud platform,
the radar detection device monitors the running road surface of the vehicle in real time through a radar detection technology to obtain a monitoring result and uploads the monitoring result to the cloud platform;
the automobile data recorder is used for adjusting the resolution of the automobile data recorder according to the resolution adjusting instruction sent by the cloud platform, shooting and recording the video according to the resolution of the automobile data recorder, and recording time, speed and position of the automobile data recorder in the video of the shooting and recording;
and the cloud platform is used for analyzing the received monitoring result according to the received monitoring result and sending a corresponding resolution adjustment instruction to the automobile data recorder according to the monitoring analysis result.
Specifically, the analyzing the received monitoring result according to the received monitoring result, and the sending of the corresponding resolution adjustment instruction to the automobile data recorder according to the monitoring analysis result means: the cloud platform presets road surface complexity levels, each road surface complexity level corresponds to one resolution of the automobile data recorder, the monitoring result is matched with the road surface complexity levels, the corresponding resolution is selected according to the matched road surface complexity levels to generate a resolution adjusting instruction, and the resolution adjusting instruction is sent to the automobile data recorders.
Further, the automobile data recorder is also used for uploading the video of the shot video to a cloud platform;
the cloud platform is also used for receiving and storing the video sent by the automobile data recorder.
Specifically, the cloud platform is further configured to analyze the video sent by the automobile data recorder to obtain a video analysis result, and send a corresponding resolution adjustment instruction to the automobile data recorder according to the video analysis result.
Still further, the analyzing the video sent by the automobile data recorder to obtain a video analysis result, and the sending of the corresponding resolution adjustment instruction to the automobile data recorder according to the video analysis result means: the method comprises the steps that the cloud platform presets adjacent vehicle condition change trend grades, each adjacent vehicle condition change trend grade corresponds to one resolution of the automobile data recorder, videos are identified, the adjacent vehicle condition change trends are obtained and matched with the adjacent vehicle condition change trend grades, corresponding resolution is selected according to the matched adjacent vehicle condition change trend grades to generate resolution adjusting instructions which are sent to the automobile data recorders, and if another resolution adjusting instruction is sent within a certain time range or needs to be sent within a certain time delay according to monitoring analysis results, the resolutions in the two resolution adjusting instructions are compared, and the resolution with the larger resolution is selected to be sent to the automobile data recorders.
Specifically, the cloud platform is further configured to send a corresponding shooting angle change instruction to the automobile data recorder according to the monitoring analysis result and/or the video analysis result;
the automobile data recorder is further used for changing the shooting angle of the automobile data recorder according to the shooting angle changing instruction sent by the cloud platform.
Still further, the system also comprises a vehicle-mounted central control terminal which is respectively connected with the cloud platform and the automobile data recorder,
the vehicle-mounted central control terminal is used for establishing connection with the automobile data recorder, and synchronously displaying videos shot by the automobile data recorder within preset time after receiving a synchronization instruction of the cloud platform;
and the cloud platform is also used for judging whether to send a synchronization instruction to the vehicle-mounted central control terminal according to the analysis result and/or the video analysis result.
Specifically, the vehicle-mounted central control terminal is connected with the automobile data recorder through the Bluetooth.
Still further, the step of judging whether to send the synchronization instruction to the vehicle-mounted central control terminal according to the analysis result and/or the video analysis result refers to: and when the cloud platform presets the road complexity grade and the adjacent vehicle condition change trend grade, respectively setting synchronous instruction identification for each road complexity grade and adjacent vehicle condition change trend grade, and judging whether to send a synchronous instruction to the vehicle-mounted central control terminal according to the matched road complexity grade and/or adjacent vehicle condition change trend grade and the synchronous instruction identification.
The system for automatically adjusting the image resolution of the automobile data recorder based on the radar technology has the advantages that the system can automatically adjust the resolution of the automobile data recorder according to the road surface condition, ensures the definition of videos of shot videos, does not constantly keep higher resolution, occupies a relatively smaller storage space, can upload the videos to a cloud platform for storage, saves the storage space, can analyze and process the videos according to the videos, automatically adjusts the resolution of the automobile data recorder according to video analysis results, not only adjusts the resolution of the automobile data recorder, but also adjusts the shooting angle of the automobile data recorder, and can enable the vehicle-mounted central control terminal to synchronize the videos of the automobile data recorder when needed after being added into the vehicle-mounted central control terminal, so that a user can be prompted.
Drawings
Fig. 1 is a system block diagram of a system for automatically adjusting image resolution of a vehicle event data recorder based on radar technology in an embodiment of the present invention.
Detailed Description
The technical solution of the present invention is described in detail below with reference to the embodiments and the accompanying drawings.
The system for automatically adjusting the image resolution of the automobile data recorder based on the radar technology comprises a radar detection device, the automobile data recorder and a cloud platform, wherein the radar detection device and the automobile data recorder are respectively connected with the cloud platform, and the radar detection device monitors the running road surface of a vehicle in real time through the radar detection technology to obtain a monitoring result and uploads the monitoring result to the cloud platform; the automobile data recorder is used for adjusting the resolution of the automobile data recorder according to the resolution adjusting instruction sent by the cloud platform, shooting and recording the video according to the resolution of the automobile data recorder, and recording time, speed and position in the video of the shooting and recording video; and the cloud platform is used for analyzing the received monitoring result according to the received monitoring result and sending a corresponding resolution adjustment instruction to the automobile data recorder according to the monitoring analysis result.
Examples
The system for automatically adjusting the image resolution of the automobile data recorder based on the radar technology comprises a radar detection device, the automobile data recorder and a cloud platform, wherein the radar detection device and the automobile data recorder are respectively connected with the cloud platform, and a system block diagram of the system is shown in fig. 1.
The radar detection device monitors the running road surface of the vehicle in real time through a radar detection technology, obtains a monitoring result and uploads the monitoring result to the cloud platform. The principle of the radar detection device is as follows: the self-excitation generates radar waves, radio frequency electromagnetic waves are directly transmitted to the roadbed of the road, sampling signals of the roadbed of the road are obtained through reflection and reception of the waves, and detection results are obtained through hardware, software and a graphic display system. This is a well established technique and will not be described in detail here.
The automobile data recorder is used for adjusting the resolution ratio of the automobile data recorder according to the resolution ratio adjusting instruction sent by the cloud platform, shooting and recording the video according to the resolution ratio of the automobile data recorder, and recording time, speed and position in the video of the shooting and recording video.
And the cloud platform is used for analyzing the received monitoring result according to the received monitoring result and sending a corresponding resolution adjustment instruction to the automobile data recorder according to the monitoring analysis result.
Wherein, according to the received monitoring result, analyze it, according to monitoring analysis result send resolution ratio adjustment instruction that corresponds to vehicle event data recorder can be: the cloud platform presets road surface complexity levels, each road surface complexity level corresponds to one resolution of the automobile data recorder, the monitoring result is matched with the road surface complexity levels, the corresponding resolution is selected according to the matched road surface complexity levels to generate a resolution adjusting instruction, and the resolution adjusting instruction is sent to the automobile data recorders.
The automobile data recorder can also upload videos of shot videos to the cloud platform; the cloud platform is further used for receiving and storing the video sent by the automobile data recorder. The cloud platform can also analyze according to the video that vehicle event data recorder sent, obtains the video analysis result, sends corresponding resolution ratio adjustment instruction to vehicle event data recorder according to the video analysis result, and it can specifically be: the cloud platform presets adjacent vehicle condition change trend grades, each adjacent vehicle condition change trend grade corresponds to one resolution of the automobile data recorder, video is identified, the condition change trend of adjacent vehicles is obtained and matched with the adjacent vehicle condition change trend grades, the corresponding resolution is selected according to the matched adjacent vehicle condition change trend grades to generate a resolution adjusting instruction which is sent to the automobile data recorder, if another resolution adjusting instruction is sent or delayed within a certain time range according to a monitoring analysis result, the resolution in the two resolution adjusting instructions is compared, the resolution with the larger resolution is selected to be sent to the automobile data recorder, and therefore the resolution of the automobile data recorder is prevented from being switched for multiple times within a certain time, and the certain time can be 5-10 seconds, which is set according to the actual situation.
In addition, the cloud platform can also send a corresponding shooting angle change instruction to the automobile data recorder according to the monitoring analysis result and/or the video analysis result, and the shooting angle change instruction specifically can be as follows: if the position of a certain adjacent vehicle in the video analysis result is close to a certain threshold (such as 3 meters), calculating to obtain a shooting angle change value in combination with the current vehicle running angle and speed; and the vehicle event data recorder changes the shooting angle of the vehicle event data recorder according to the shooting angle change instruction sent by the cloud platform, and the vehicle event data recorder can specifically be as follows: and changing the self shooting angle according to the received shooting angle within the preset time after receiving the shooting angle changing instruction.
In this example, the vehicle-mounted central control system further comprises a vehicle-mounted central control terminal, wherein the vehicle-mounted central control terminal is respectively connected with the cloud platform and the automobile data recorder, the vehicle-mounted central control terminal can be connected with the automobile data recorder through Bluetooth, the vehicle-mounted central control terminal is used for being connected with the automobile data recorder, and after a synchronization instruction of the cloud platform is received, videos shot by the automobile data recorder and recorded in a video mode are synchronously displayed within preset time (such as 10 seconds and the like, and the time is set according to actual conditions); the cloud platform is further configured to determine whether to send a synchronization instruction to the vehicle-mounted central control terminal according to the analysis result and/or the video analysis result, where the determination may specifically be: and when the cloud platform presets the road complexity grade and the adjacent vehicle condition change trend grade, respectively setting synchronous instruction identification for each road complexity grade and adjacent vehicle condition change trend grade, and judging whether to send a synchronous instruction to the vehicle-mounted central control terminal according to the matched road complexity grade and/or adjacent vehicle condition change trend grade and the synchronous instruction identification.
Claims (7)
1. The system for automatically adjusting the image resolution of the automobile data recorder based on the radar technology is characterized by comprising a radar detection device, the automobile data recorder and a cloud platform, wherein the radar detection device and the automobile data recorder are respectively connected with the cloud platform,
the radar detection device monitors the running road surface of the vehicle in real time through a radar detection technology to obtain a monitoring result and uploads the monitoring result to the cloud platform;
the automobile data recorder is used for adjusting the resolution of the automobile data recorder according to the resolution adjusting instruction sent by the cloud platform, shooting and recording the video according to the resolution of the automobile data recorder, and recording time, speed and position of the automobile data recorder in the video of the shooting and recording;
the cloud platform is used for analyzing the received monitoring result according to the received monitoring result and sending a corresponding resolution adjustment instruction to the automobile data recorder according to the monitoring analysis result;
the system also comprises a vehicle-mounted central control terminal which is respectively connected with the cloud platform and the automobile data recorder,
the vehicle-mounted central control terminal is used for establishing connection with the automobile data recorder, and synchronously displaying videos shot by the automobile data recorder within preset time after receiving a synchronization instruction of the cloud platform;
the cloud platform is further used for judging whether to send a synchronization instruction to the vehicle-mounted central control terminal according to the analysis result and/or the video analysis result: and when the cloud platform presets the road complexity grade and the adjacent vehicle condition change trend grade, respectively setting synchronous instruction identification for each road complexity grade and adjacent vehicle condition change trend grade, and judging whether to send a synchronous instruction to the vehicle-mounted central control terminal according to the matched road complexity grade and/or adjacent vehicle condition change trend grade and the synchronous instruction identification.
2. The system for automatically adjusting the image resolution of a vehicle event data recorder based on radar technology as claimed in claim 1, wherein the analyzing the received monitoring result and sending the corresponding resolution adjustment instruction to the vehicle event data recorder according to the monitoring analysis result are: the cloud platform presets road surface complexity levels, each road surface complexity level corresponds to one resolution of the automobile data recorder, the monitoring result is matched with the road surface complexity levels, the corresponding resolution is selected according to the matched road surface complexity levels to generate a resolution adjusting instruction, and the resolution adjusting instruction is sent to the automobile data recorders.
3. The system for automatically adjusting image resolution of a vehicle event data recorder based on radar technology of claim 1, wherein the vehicle event data recorder is further configured to upload video of the shot video to a cloud platform;
the cloud platform is also used for receiving and storing the video sent by the automobile data recorder.
4. The system for automatically adjusting image resolution of a vehicle event data recorder based on radar technology as claimed in claim 3, wherein the cloud platform is further configured to perform analysis according to the video sent by the vehicle event data recorder, obtain a video analysis result, and send a corresponding resolution adjustment instruction to the vehicle event data recorder according to the video analysis result.
5. The system for automatically adjusting image resolution of a vehicle event data recorder based on radar technology as claimed in claim 4, wherein the analyzing according to the video sent by the vehicle event data recorder to obtain the video analysis result, and the sending of the corresponding resolution adjustment instruction to the vehicle event data recorder according to the video analysis result means: the method comprises the steps that the cloud platform presets adjacent vehicle condition change trend grades, each adjacent vehicle condition change trend grade corresponds to one resolution of the automobile data recorder, videos are identified, the adjacent vehicle condition change trends are obtained and matched with the adjacent vehicle condition change trend grades, corresponding resolution is selected according to the matched adjacent vehicle condition change trend grades to generate resolution adjusting instructions which are sent to the automobile data recorders, and if another resolution adjusting instruction is sent within a certain time range or needs to be sent within a certain time delay according to monitoring analysis results, the resolutions in the two resolution adjusting instructions are compared, and the resolution with the larger resolution is selected to be sent to the automobile data recorders.
6. The system for automatically adjusting image resolution of a vehicle event data recorder based on radar technology as claimed in claim 4, wherein the cloud platform is further configured to send a corresponding shooting angle change instruction to the vehicle event data recorder according to the monitoring analysis result and/or the video analysis result;
the automobile data recorder is further used for changing the shooting angle of the automobile data recorder according to the shooting angle changing instruction sent by the cloud platform.
7. The system for automatically adjusting image resolution of a vehicle event data recorder based on radar technology as claimed in claim 1, wherein the vehicle-mounted central control terminal establishes connection with the vehicle event data recorder through Bluetooth.
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| CN110248090A (en) * | 2019-05-31 | 2019-09-17 | 联想(北京)有限公司 | Control method and control device |
| CN112288908B (en) * | 2020-11-02 | 2021-07-13 | 蘑菇车联信息科技有限公司 | Time generation method and device of automobile data recorder |
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