Car Wireless CCTV Camera 28mm Auto CCTV Camera Monitoring LED High Definition

Car CCTV Camera 28mm in car monitoring LED high - definition infrared night vision reverse

CCD and CMOS can be divided into two categories based on the imaging process :  fast scan and slow scan    It can be divided into specialized level and civilian level according to different application scenarios    The common video chat cameras and various digital cameras use civilian grade dynamic and static CCD/CMOS    respectively

Various car mounted reverse cameras include :  night vision reverse camera    license plate frame reverse camera  half license plate frame reverse camera    perforated camera, external camera   etc 

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There are two types of reverse cameras :  wired and wireless   The wired method is simple and reliable    but it requires wiring inside the vehicle body   The wireless method does not require wiring inside the vehicle body and is easy to install, but requires the addition of a wireless receiving module    Due to the unsatisfactory reception performance of wireless receiving modules nowadays    they are more or less susceptible to interference from the usage environment   Generally     reverse cameras still use wired methods

The following question is :  How can a portable navigation system know that the user is reversing and immediately switch to the rearview function ?

There are three ways : 

The first method is a clumsy but also simple and reliable one    which is to use the buttons on portable navigation 

A certain button can be defined as a reverse rearview switch button  Before reversing    the user presses this button and the system immediately switches to reverse rearview mode    After reversing, press the button again and the system will switch back to its original interface    This method is simple and reliable    and there is no need to add anything to the extension part of the bracket    But it requires manual operation and is not intelligent enough

The second method is to detect the reverse signal (a simple method is to take the control signal from the reverse light)    When the user engages the reverse gear    the reverse light will light up and provide a switch signal    which is used to control the switch of the reverse image system   This

method is quite intelligent, with good accuracy and stability  

The third method is to continuously check whether the CVBS signal is valid within the written navigation system to determine whether it is reversing    When reversing, turn on the reversing camera    and the camera will send a CVBS composite video signal to the interior of PND through the bracket interface   If PND detects a valid video signal    it is considered to be in reverse mode    This method can be considered as the most intelligent and accurate method

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