Fast shutter doors believe that many people have seen, most of the garage or small shop facade decoration will be used. In the past, the shutter door was usually opened with a key and used manually, but now with the remote control shutter door, it is more convenient to use, but there are many problems in its use.

Fast shutter doors believe that many people have seen, most of the garage or small shop facade decoration will be used. In the past, the shutter door is usually opened with a key, manual use, but now with the remote control shutter door, it is more convenient to use, but there are many problems in its use.

The influence factors of the remote control distance of the fast shutter door are as follows:

Receiving sensitivity: fast door receiver receiver sensitivity increases, can make the remote control distance increases, but may be disturbed caused by out of control or misoperation.

Transmitting power: If the transmitting power function is large, the distance is far, but it is determined that it consumes more electricity and is prone to interference.

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

Antenna factors: parallel to each other linear antenna, remote control distance is far, but occupy a large space, in use the antenna elongated, straightened can increase the remote control distance.

Blocking: UseUHFFrequency band wireless remote control, its propagation characteristics and light similar, straight-line propagation, diffraction is small, such as the wall between the transmitter and the receiver will block the remote control distance, sometimes reinforced concrete wall, due to the absorption of the conductor on the radio wave, may be affected.

Key words:Qingdao fast door; Qingdao Industrial Lift Gate