Camera with self-cleaning function and self-cleaning method thereof

Abstract

The invention provides a camera with a self-cleaning function and a self-cleaning method thereof, which are characterized in that information is transmitted to a main chip of an ECU after an environment image is acquired by a photosensitive chip, the environment image is processed by the main chip, whether dirt exists or not is judged, and a power supply chip is controlled by an MCU according to the detected dirt level. Therefore, the piezoelectric ceramic is controlled to achieve dirt treatment on the surface of the front-end lens, the camera cleaning step is simplified, the system cost is greatly reduced, compared with a traditional cleaning device, installation and maintenance are more convenient, and the reliability of the system is greatly improved.

Description

technical field [0001] The invention relates to the field of cameras, in particular to a camera with a self-cleaning function and a self-cleaning method thereof. Background technique [0002] The advantages of wide application and low cost of cameras make them an important part of advanced driver assistance systems (ADAS). ADAS perceives the surrounding road environment with the help of images collected by cameras, and realizes special functions such as road sign recognition, lane line sensing, pedestrian recognition, and vehicle recognition. Cameras installed outside the vehicle are easily affected by environments such as mud, rain, ice and snow, and the surface of the lens is easily polluted, resulting in partial or complete blockage of the image, affecting the realization of ADAS functions, and even leading to safety accidents. However, the existing vehicle-mounted camera cleaning devices usually include liquid storage tanks, gas pipelines, fluid pipelines, and nozzles. ...

AI Technical Summary

Problems solved by technology

Cameras installed outside the car are easily affected by mud, rain, ice and snow, and the surface of the lens is easily polluted, resulting in partial or complete blockage of the image, affecting the realization of ADAS functions, and even leading to safety accidents

However, the existing vehicle-mounted camera cleaning devices usually include liquid storage tanks, gas pipelines, fluid pipelines, and nozzles. The system is complicated, the layout is troublesome, and the cost is high. In addition, the cleaning time and cleanliness of cleaning with water phase flow or gas phase flow are long and poor. High, high energy consumption, and low cleaning efficiency. After cleaning, it is necessary to add air to disperse the cleaning fluid on the surface of the camera, and the cleaning effect on lipids is not good, which cannot cover the needs of multi-purpose scenarios. In addition, frequent manual replenishment of cleaning fluid is required, which cannot meet the requirements. Market demand

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