Video acquisition, processing and storage split type automobile data recorder

Abstract

The invention provides a split type automobile data recorder for video acquisition, processing and storage. The driving record camera is connected with a processor of the radio system, and the USB flash disk is connected with a USB interface end of the radio system and used for storing driving record data. The emergency video recording function is triggered based on a vehicle acceleration signal and / or a yaw velocity signal acquired through a vehicle machine CAN line. And video watermark superposition is carried out based on a vehicle speed signal and / or a light state signal acquired through a vehicle machine CAN line. And the voice module of the radio system is used for realizing the recording and photographing voice control functions of driving records. And the wireless transmission function of the driving record data is realized through the WIFI module of the radio system. And an E-Call battery is used as a standby power supply, so that the power-off protection function of the automobile data recorder is realized. And the AR navigation function is realized by using vehicle map software. Only one driving recording camera needs to be installed independently, and then the national standard requirement can be met by utilizing existing equipment resources of the vehicle.

Description

Technical Field

[0001] The invention relates to the technical field of automobile driving record, and in particular to a driving recorder with separate video acquisition, processing and storage. Background Art

[0002] In the Chinese market, driving recorders are a feature that users want to configure when buying a car. In order to meet the requirements of the national standard for driving recorders (GB / T 38892-2020), the integrated driving recorders currently used, which integrate video acquisition, processing, and storage modules, need to add some components, which is costly. Using a 360-degree surround camera to store driving records saves costs, but the field of view is wide, the effect is not good, and the functions do not meet the national standard requirements.

[0003] In view of the above problems, the inventors of the present invention finally obtained the present invention after a long period of research and practice. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a driving recorder with separate functions of video acquisition, processing and storage. It only needs to install a driving record camera separately and utilizes the existing equipment resources of the vehicle to realize the functions of a driving recorder that meets the national standards.

[0005] The technical solution adopted by the present invention is:

[0006] Provided is a driving recorder with video acquisition, processing and storage functions, which is installed on a vehicle equipped with a radio system, and includes a driving record camera and a USB flash drive;

[0007] The driving record camera is connected to a processor of the radio system, and the processor is used to control the driving record camera and process the video collected by the camera;

[0008] The U disk is connected to the USB interface end of the radio system and is used for storing driving record data.

[0009] Furthermore, the processor of the radio system triggers the emergency recording function based on the vehicle acceleration signal and / or yaw rate signal obtained through the vehicle CAN line.

[0010] Furthermore, the processor of the radio system superimposes the video watermark based on the vehicle speed signal and / or the light status signal obtained through the vehicle CAN line.

[0011] Furthermore, the voice control function of recording the driving record and taking pictures of the driving record camera is realized through the voice module of the radio system.

[0012] Furthermore, the wireless transmission function of the driving record data is realized through the WIFI module of the radio system.

[0013] Furthermore, the battery of the vehicle's E-Call device is used as a backup power source to implement a power-off protection function for the driving recorder, that is, to provide emergency power to the driving recorder after the vehicle's battery is powered off, thereby completing video preservation.

[0014] Furthermore, the AR navigation function is realized by utilizing the vehicle map software in combination with the video stream of the driving recording camera.

[0015] The present invention only needs to add one camera and fully utilize the existing configuration in the vehicle to achieve rich driving record and AR navigation functions, save costs, and meet the requirements of the GB / T 38892-2020 national standard. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a system architecture block diagram of a drive recorder according to an embodiment of the present invention. DETAILED DESCRIPTION

[0018] The above and other technical features and advantages of the present invention are described in more detail below in conjunction with the accompanying drawings.

[0019] As used herein, the term "including" and its variations mean open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "based at least in part on". The terms "an example embodiment" and "an embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". Other explicit and implicit definitions may also be included below.

[0020] like Figure 1 As shown, a driving recorder with video acquisition, processing and storage is provided, which is installed on a vehicle equipped with a radio system. The driving recorder includes a driving record camera 1 and a USB flash drive. The driving record camera 1 is used to collect driving record videos. The driving record camera 1 is connected to a processor 3 of the radio system through an LVDS line. The processor 3 is used to control the driving record camera 1 and process the video collected by it. The USB flash drive is connected to the USB interface terminal 2 of the radio system and is used to store driving record data.

[0021] The SOC processor 3 of the radio system is used for video processing and driving recorder function control. The radio system has a CAN module 11, and the processor 3 can obtain vehicle information through the CAN module 11. The processor can judge whether an emergency occurs during driving based on the vehicle acceleration signal, yaw angular velocity signal, etc. obtained through the CAN line. When an emergency occurs, the driving recorder can automatically shoot a video to ensure that the content at the critical moment will not be covered by the subsequent recorded video. This function is very helpful for ensuring driving safety and evidence retention. The processor can obtain the vehicle speed signal, light status signal, etc. obtained through the vehicle CAN line to superimpose video watermarks. It is well known that the watermark information in the driving record plays an important role in determining the cause and responsibility of the accident. Since the radio system has a CAN module 11 and can obtain vehicle information, it can superimpose watermarks of various driving information, such as turn signals, brakes, throttles, steering, speed and other information.

[0022] The DSP module 9 of the radio system is used to perform audio signal conversion, and the MIC module 5 is used to collect sound. The voice module of the radio system realizes the voice control function of recording the driving record and taking pictures of the driving record camera. The DDR memory 10 of the radio system is used to provide cache. The MCU controller 8 of the radio system is used for power management. The EMMC module 7 of the radio system is a built-in storage.

[0023] The WIFI module 4 of the radio system can realize the wireless transmission function of the driving record data, for example, it is used to share the driving record video to a mobile phone.

[0024] Since 2018, my country has required cars to be equipped with on-board E-Call devices. E-Call devices are a type of on-board alarm system. Because the working environment requirements of on-board E-Call are relatively high, the performance requirements of the vehicle E-Call battery are also very high. The on-board E-Call battery must be able to work normally in a wide operating temperature range of -40℃ to +80℃. The battery of the vehicle E-Call device is used as the backup power supply for the dashcam to realize the power-off protection function of the dashcam, that is, to provide emergency power to the dashcam after the vehicle battery is powered off to complete video storage.

[0025] The AR navigation function is realized by using the car map software and the video stream of the driving record camera. Specifically, the real scene of the road ahead is captured in real time by the driving record camera, and then combined with the car map software (the current location of the car, map navigation information and scene AI recognition, fusion calculation, and finally generate a virtual navigation guidance model, and superimpose it on the real road), so as to create a navigation screen that is closer to the driver's real vision. Compared with traditional 2D or 3D electronic maps, AR real-scene navigation technology greatly reduces the cost of reading maps for users to browse the current road conditions, bringing a more accurate and safer user service experience than traditional map navigation.

[0026] The above are only preferred embodiments of the present invention, which are only illustrative and not restrictive. The structures and connection modes of the components in the present invention can be changed, and any equivalent transformations and improvements based on the technical solution of the present invention should not be excluded from the protection scope of the present invention.

Claims

1. A vehicle driving recorder with separate video acquisition, processing and storage functions, installed on a vehicle equipped with a radio system, characterized in that: The driving recorder includes a driving record camera and a USB flash drive; The driving record camera is connected to a processor of the radio system, and the processor is used to control the driving record camera and process the video collected by the camera; The U disk is connected to the USB interface end of the radio system and is used for storing driving record data.

2. A vehicle driving recorder with separate video acquisition, processing and storage as claimed in claim 1, characterized in that: The processor of the radio system triggers the emergency recording function based on the vehicle acceleration signal and / or yaw rate signal obtained through the vehicle CAN line.

3. A vehicle driving recorder with separate video acquisition, processing and storage as claimed in claim 1, characterized in that: The processor of the radio system performs video watermark superposition based on the vehicle speed signal and / or light status signal obtained through the vehicle CAN line.

4. A vehicle driving recorder with separate video acquisition, processing and storage as claimed in claim 1, characterized in that: The voice module of the radio system is used to realize the voice control function of recording the driving record and taking pictures of the driving record camera.

5. The vehicle driving recorder with separate video acquisition, processing and storage as claimed in claim 1, characterized in that: The wireless transmission function of the driving record data is realized through the WIFI module of the radio system.

6. The vehicle driving recorder with separate video acquisition, processing and storage as claimed in claim 1, characterized in that: The battery of the vehicle's E-Call device is used as a backup power source to realize the power-off protection function of the driving recorder, that is, to provide emergency power to the driving recorder after the vehicle's battery is powered off to complete video preservation.

7. The vehicle driving recorder with separate video acquisition, processing and storage as claimed in claim 1, characterized in that: The AR navigation function is realized by utilizing the vehicle map software in combination with the video stream of the driving recording camera.

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