The main failure factors of remote control operation of electric rolling shutter door are as follows:

　　1.發(fā)射功率:發(fā)射功率大，距離遠(yuǎn)，但耗電大，容易產(chǎn)生干擾;

　　1. Transmitting power: high transmitting power, long distance, but high power consumption, easy to produce interference;

　　2.接收靈敏度:提高了接收機(jī)的接收靈敏度，增加了遙控距離，但容易受到干擾，造成誤操作或失去控制;

　　2. Receiving sensitivity: improve the receiving sensitivity of the receiver, increase the remote control distance, but it is easy to be interfered, resulting in misoperation or loss of control;

　　3.天線:采用直線天線，且彼此平行，遙控距離雖遠(yuǎn)，但占用空間大，在使用時(shí)天線拉長(zhǎng)，直線可增加遙控距離;

　　3. Antenna: the linear antenna is used, which is parallel to each other. Although the remote control distance is far, it takes up a large space. When the antenna is extended, the linear antenna can increase the remote control distance;

　　4.高度:天線越高，遙控距離越遠(yuǎn)，但受客觀條件限制;

　　4. Height: the higher the antenna, the farther the remote control distance, but limited by objective conditions;

　　5.目前用于無(wú)線遙控使用超高頻頻段規(guī)定的,其傳播特性和光近似線性傳播,衍射很小,如果有一個(gè)發(fā)射器和接收器之間的墻塊將大大折扣遙控距離,如果是鋼筋混凝土墻,由于吸收的指揮海浪的影響,更影響。

　　5. At present, the UHF band is used for wireless remote control according to the national regulations. Its propagation characteristics and light are nearly linear propagation, and its diffraction is very small. If there is a wall block between transmitter and receiver, the remote control distance will be greatly reduced. If it is a reinforced concrete wall, it will be more affected due to the influence of the absorbed command wave.

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