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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. Let's take a brief look at what devices are needed for the three parts of the wireless bridge monitoring system.
1, front-end video monitoring part
The front-end video surveillance part is mainly located at the front end of the monitoring site, mainly for the camera. In the wireless bridge monitoring system, the network high-definition camera is generally used, and the camera supporting equipment mainly has the fixed bracket of the camera and the power supply of the camera (recommended to use the POE switch for power supply). ).
2. Mid-range wireless video transmission part
Including transmitter wireless bridge, PoE power supply box (including power line and power supply module), fixed transmitter U-clamp and L-shaped bracket, bridge dedicated antenna, waterproof plug, receiving wireless bridge.
If the front-end transmission is not omnidirectional, or the transmission distance is within 10 km, it is recommended to use a wireless bridge with built-in antennas, such as the Tianbo series of wireless bridge devices.
3, back-end management control part
NVR network hard disk recorders, hard disks, switches (for the integration of signals from multiple wireless bridges into the NVR), monitors or video walls.
4, wireless monitoring system topology
The front-end network camera transmits the signal to the wireless bridge through the network cable or the optical fiber to transmit the front-end signal. After the signal of the front-end wireless bridge is transmitted through the antenna, the receiving end receives the signal transmitted by the front-end wireless bridge by using the antenna, and then enters the wireless. After the bridge is received by the wireless bridge, if the signals of multiple wireless bridges are collected through the switch, the network DVR is used to store the video, and then enter the display.
At the same time, the voice signal that needs to be transmitted can be simultaneously recorded into the recorder. By controlling the host, the operator can issue commands to control the up, down, left, and right movements of the pan/tilt and focus the zoom on the lens, and can be implemented in the multi-channel camera and pan/tilt through the control host. Switch between. With special recording processing mode, images can be recorded, played back, processed, etc., so that the recording effect is optimal.
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