Talking about the practical problems such as the transmission distance penetration ability of wireless monitoring in Lean bridge
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The transmission distance of wireless monitoring equipment can generally increase the transmission distance by increasing the antenna gain and transmission power. The coverage also depends on the gain of the antenna and the power of the wireless monitoring equipment. The relationship between the penetrating power and the power is not too large. .
In wireless communication systems, signals with higher frequencies pass through buildings more easily than signals with lower frequencies. The lower the frequency, the longer the wavelength, the stronger the diffraction ability, the poorer the penetrating ability, the smaller the attenuation of signal loss, and the longer the transmission distance. Such as radio and television, short-wave radio. The higher the frequency, the shorter the wavelength, the weaker the diffractive power, the stronger the penetrating ability, the greater the signal loss attenuation, and the closer the transmission distance. High-frequency signals do have large losses, and the higher the frequency, the greater the loss in the propagation process. Therefore, short-wave propagation in the form of ground waves can only propagate several hundred meters, and the distance is very short, but long-wave propagation in the form of ground waves is the reason. However, the high-frequency signal itself carries high energy and has strong penetration capabilities. For example, when the frequency of radio waves is high, it penetrates the ionosphere and does not form reflections in the ionosphere. The microwave of 1.2GHZ or 2.4GHZ of general use now, for example, its wavelength is very short, so the diffractive performance is very bad, it is not easy to bypass the obstacle, generally require the line of sight to transmit. This shows that the relationship between wavelength and frequency is inversely proportional to them.
Shenzhen Leian Technology currently produces wireless monitoring equipment whose frequency is 1.2G, 2.4G and 5.8G microwaves as the transmission medium. Its characteristic is linear line-of-sight transmission, and the diffraction ability is very limited. In fact, many times, especially in indoor short-distance transmission, the signal is mostly communicated through multiple reflections. In the case of long-distance transmission, if there is blockage, relays need to be set up to relay the signal.
How to choose specific wireless monitoring equipment, please call Shenzhen Leian technology sales staff. The article comes from Lean Technology Wireless Monitor http://www.lean.com . Com, please indicate, thank you!