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The wireless bridge monitoring system consists of three parts: the front-end video monitoring part, the mid-range wireless video transmission part, and the back-end management control part. The following Fengrundalai briefly introduces what devices are required for the three parts of the wireless bridge monitoring system.
1, front-end video monitoring part
The front-end video monitoring part is mainly located at the front end of the surveillance site, mainly for cameras. In the wireless bridge monitoring system, network HD cameras are generally used, and the camera supporting equipment mainly includes the camera's fixed bracket and camera power supply.
Network HD Camera
Camera bracket
Camera power supply
switch
2, mid-range wireless video transmission section
Including transmitter wireless bridge, PoE power supply box (including power line and power supply module), fixed transmitter U-shaped and L-shaped bracket, bridge dedicated antenna, waterproof plug, receiver wireless bridge.
If the front-end transmission is not omnidirectional, or the transmission distance is within 10 kilometers, it is recommended to use a wireless bridge with built-in antenna, such as Fengrunda's series of wireless bridge equipment.
3, back-end management control section
NVR network hard disk recorders, hard disks, switches (used for multiple wireless bridges for signal concentration before entering the NVR), monitors or video walls.
NVR
Monitor display
4, wireless monitoring system topology
The front-end network camera transmits the signal to the wireless bridge through a network cable or fiber to transmit the front-end signal. After the signal of the front-end wireless bridge is transmitted through the antenna, the receiving end uses the antenna to receive the signal transmitted by the front-end wireless bridge and then enters the wireless signal. Bridge, after the wireless bridge receives the signal, if the signals of multiple wireless bridges are collected through the switch and then use the network hard disk recorder to store the video, then enter the display again.
At the same time, voice signals that need to be transmitted can be recorded synchronously in the video recorder. By controlling the host, the operator can issue commands to control the movements of the top, bottom, left, and right of the PTZ and perform zooming operations on the lens. The control camera can be used to implement multiple cameras and pan/tilt cameras. Switch between. Using a special video processing mode, you can perform operations such as recording, playback, and processing on the image to achieve the best video performance.