A video transmission device and a vehicle driving assistance system

Abstract

The invention discloses a video transmission device and a vehicle-mounted driving assistance system. The video transmission device is connected between a camera and a server. The video transmission device includes: an image acquisition module, which is used to convert the image collected by the camera into a data signal, and The data signal is encoded and then transmitted to the image processing module through the coaxial line; the image processing module is used to decode the received data signal and send the decoded data signal to the server; the first filter circuit is used for Obtain current from the DC power supply, and load the current onto the coaxial line, and suppress the data signal on the coaxial line from entering the DC power supply; the second filter circuit is used to separate the current from the coaxial line, and separate the The current is transmitted to the image acquisition module. The technical solution of the present invention can improve the real-time performance of the video transmission of the vehicle-mounted camera without adding wiring, and is simple to implement and highly practical.

Description

technical field [0001] The present invention relates to the field of computer technology, in particular to a video transmission device and a vehicle driving assistance system. Background technique [0002] Under the trend of continuous improvement of safety in the automotive industry, vehicles need to integrate more and more peripheral sensors and intelligent image processing technology in order to realize assisted driving system or automatic driving system, such as lane departure warning, collision avoidance, blind spot monitoring, reversing image And surrounding environment observation system with object recognition function, etc. [0003] Generally, the length of the civilian car body is about 4 to 5 meters, and the length of the truck can reach more than 10 meters. The wiring of the vehicle is relatively curved, and the distance between the camera and the server used to process the image is relatively long. Long-distance transmission to the server for processing has bec...

AI Technical Summary

Problems solved by technology

However, the video data collected by the camera is transmitted at high speed on the coaxial cable as an uncompressed digital signal to ensure that the original image will not be distorted. The original data is too large, and the current server cannot meet the needs of timely processing. In addition, the front-end camera module The power supply also needs to set up cables separately, which is not conducive to wiring settings

[0007] Solution 3. Use a composite video cable to realize video data transmission. The resolution of the single-channel composite video is 640*480. The image at this resolution is too blurred, resulting in the loss of a lot of effective information, which cannot meet the resolution requirements of the vehicle display.

[0008] To sum up, the currently provided video transmission methods have corresponding technical defects, and cannot be well applied to the vehicle terminal for video transmission

Images