Wireless bridge to establish point-to-multipoint transmission considerations

When deploying wireless surveillance, point-to-multipoint transmission methods are often used in terms of cost savings and simplified construction. What do you mean by point-to-point, what you need to pay attention to in the deployment process and how to achieve good transmission results... These are all related to the success of the wireless monitoring.

Point-to-multipoint, a point-to-multiple point, can be multiple transmitters to one receiver, or it can be a transmitter to multiple receivers, according to the needs and monitoring needs. Not much used is that multiple transmitters correspond to one receiver.

Regarding its considerations, Feng Runda, a professional wireless bridge equipment and solution provider, sums up the following related considerations.

1, can not be too far away

In order to ensure a good transmission effect, it is beneficial to set the angle between the transmitter and the receiver. Generally, the distance cannot be too far. It is better not to exceed 5 to 10 kilometers, and the best effect is within 5 kilometers.

2, the angle should be reasonable

Since multiple transmitters correspond to one receiver, the perspectives of the receiver bridge and the transmitter bridge are very important. It is generally 30°, 60°, 90°, 120°, 180°, and the like. If the angle is not set properly, some monitoring data of the camera may not be transmitted or the transmission effect is not good. The specific angle can be determined according to the actual situation, and can be determined by the distance between the transmitter and the receiver and the dispersion of the transmitters.

3, no more than 1 pair of 8

Point-to-multipoint transmission, a receiver bridge can correspond to multiple transmitter bridges, but this ratio can not be too large, otherwise it will make the transmission effect compromised, and the receiver can not afford to look at so much data. Therefore, it is best not to exceed the ratio of 1:8, usually the best 1:4 and 1:5.

4, camera pixels should not be too high

The code stream determined by the camera pixel level can be understood as the network bandwidth that will be occupied. The higher the pixel number of the camera is, the larger the code stream is. When multiple transmitters transmit the monitoring data of the camera to the receiver bridge, the data will be very large, the receiver bridge may not be able to bear, and it will result in packet loss, severe delay, etc. phenomenon. So that kind of ultra-high definition camera is definitely not suitable for use in point-to-point transmission.

5, the bridge's bandwidth can not be too low

This point is similar to the above mentioned principle that the pixels of the camera cannot be too high. The higher the transmission rate of the bridge, the greater the bandwidth, the possibility of transmitting more monitoring data and making the monitoring picture smoother.

The above five points comprehensively summarize the points of attention of wireless bridge point-to-multipoint transmission. As long as you really understand it, you can freely deploy wireless bridges.