What is access control for automatic door

Access control systems is very important for automatic door, not only public but also limited place. Access control almost in our daily life.

The access control system is the identification of the entry authorization. After recognizing or detecting the entry of an authorization, an open door signal is provided to the control system of the automatic door. The automatic door must be in the locked state before the door opening signal is provided. Access control systems include from the most simple key switch, password lock, magnetic card lock. (Attendance Statistics System). Up to complex weight recognition systems, fingerprint identification systems, and so on. But no matter how complex the system, the final is to provide automatic doorcontact signal. The shielding of the signal circuit is important to avoid the possibility of erroneous opening of the door due to interference from unrelated signals.

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