How to detect the quality of car camera

Method for judging the quality of vehicle-mounted camera;

1, chip, CCD and CMOS chip are important components of reversing camera, which are divided into CCD and CMOS according to the different components. CMOS is mainly used in products with low image quality. Its advantage is that the manufacturing cost and power consumption are lower than CCD, but the disadvantage is that CMOS cameras require higher light sources.

CCD is a high-end technology component for photography and video shooting, with video capture card. There is a big gap between CCD and CMOS in technology and performance. Generally speaking, CCD works better, but it is also more expensive. It is suggested to choose CCD camera without considering the cost.

2, sharpness, sharpness is one of the important indicators to measure the camera. Generally speaking, products with high definition will have better picture quality. At present, 420-line resolution products have become the mainstream products of reversing cameras, and 380-line products can also be selected if they are debugged well.

However, depending on the chip grade of each camera, the photosensitive elements are different, including the level of debugging technicians, the products of the same chip and grade may show different quality and effect. On the contrary, the night vision effect of high-definition products will be discounted.

3, night vision, night vision effect is related to the clarity of the product, the higher the definition of the product, the night vision effect will not be very good, which is the reason of the chip itself, but the product with good quality has night vision function and will not image objects, although the color will be worse, but the clarity is not a problem.

Extended data

This sampling * * * randomly sampled samples 15 batches, including Zhenjiang New District 10 batch and Dantu District's 5 batches, with sales prices ranging from 200 yuan to 1680 yuan.

Entrusted by Changzhou Electronic Product Quality Monitoring Institute Co., Ltd., this sampling inspection was conducted in accordance with GB 8898-201Safety Requirements for Audio, Video and Similar Electronic Equipment and GB 31241-2014 Safety Requirements for Lithium Batteries of Portable Electronic Products. The inspection items are marks and. After inspection, none of the 15 batches of driving recorders is qualified.

"Consumers buy driving recorders mainly because they hope that driving recorders can provide a basis for the identification of traffic liability accidents. However, once the driving recorder product is unqualified, the result will be greatly reduced. "

A person from the Municipal Administration for Industry and Commerce said that signs and descriptions are important characteristic parameters to help consumers understand the goods and an important basis for purchasing, installing, using and maintaining the goods. Once the key electrical parameters in the signs and descriptions are missing, it will not be able to correctly guide users to use the driving recorder safely, which may bring security risks to users in the process of using the driving recorder.

15 batches of people's daily online-Zhenjiang spot-check driving recorders were all unqualified.