The camera is powered by the reverse taillight of the vehicle. When the reverse gear is engaged, the camera is synchronously supplied with power and activated for operation. It transmits the collected video information to the wireless receiver installed at the front of the vehicle via a wireless transmitter. The receiver then sends the video information to the GPS navigator through the AV IN interface. In this way, once the receiver captures the signal, the GPS navigator will prioritize its LCD screen for displaying the reverse image video, regardless of which operation interface the GPS navigator is on.

CCD and CMOS chips are important core components of a reverse camera, which can be divided into CCD and CMOS types according to different components. CMOS is mainly applied to products with relatively low image quality. Its advantages are lower manufacturing cost and power consumption than CCD, while its disadvantage is that CMOS cameras have relatively high requirements for light sources. CCD is a high-end technical component used in photography and videography, and is usually equipped with a video capture card.

There is a huge gap between CCD and CMOS in terms of technology and performance. Generally speaking, CCD delivers better image quality but comes with a higher price tag. It is recommended to choose a CCD camera if cost is not a consideration.

Virtually all reverse camera products are equipped with waterproof function, which prevents erosion by rainwater and ensures the normal performance of the camera.

The night vision effect is related to the definition of the product. Products with higher definition usually have relatively inferior night vision effect due to the inherent characteristics of the chip itself. However, high-quality cameras are all equipped with night vision function without compromising the imaging effect of objects. Although the color rendering will be slightly compromised, the clarity is guaranteed.

Definition is one of the important indicators for measuring a camera. Generally, products with higher definition will deliver better image quality. At present, products with a definition of 420 TV lines have become the mainstream of reverse cameras, and products with 380 TV lines are also an alternative if well calibrated.

However, due to the differences in chip grades, photosensitive components of various cameras and the professional skills of calibration technicians, products with the same chip and grade may present different image quality. Conversely, the night vision effect of high-definition products will be somewhat compromised.

In conclusion, when selecting a reverse camera, consideration can be given to the above aspects. The primary factor is to check and compare the actual imaging effect, so as to maximize the performance of the camera.