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Remote access control system for controlling door lock to unlock remotely

  • US 9,948,905 B2
  • Filed: 10/28/2015
  • Issued: 04/17/2018
  • Est. Priority Date: 08/28/2015
  • Status: Active Grant
First Claim
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1. A remote access control system, comprising:

  • a remote host connected to a mobile device via Internet;

    a proximity sensor doorbell, comprising;

    a proximity sensor comprising a sensing zone, the proximity sensor triggering a doorbell signal when sensing that a visitor'"'"'s finger approaches the sensing zone; and

    a buzzer, sounding when the doorbell signal is triggered;

    a door lock device; and

    a gateway device connected to the proximity sensor doorbell, the gateway device comprising;

    a camera unit capturing a monitoring video;

    a network unit connected to Internet;

    a first wireless unit wirelessly connected to the door lock device; and

    a first control unit electrically connected to the camera unit, the network unit and the first wireless unit, the first control unit determining whether the monitoring video comprises image of a visitor, and counting a stay time which the image of the visitor is illustrated in the monitoring video when the monitoring video comprises the image of the visitor, the first control unit sending a first notification message to the mobile device via the remote host when the stay time exceeds a predetermined time, the first control unit sending a second notification message to the mobile device via the remote host when receiving the doorbell signal, and controlling the door lock device to unlock when receiving an unlocking message from the mobile device,wherein the remote access control system further comprises an auxiliary sensor device connected to the gateway device via a wireless sensor network, the auxiliary sensor device sends a trigger signal to the gateway device when detecting the visitor, wherein the gateway device sends the first notification message to the mobile device when the stay time exceeds the predetermined time and the gateway device receives the trigger signal, and the gateway device sends the second notification message to the mobile device when receiving the doorbell signal and the trigger signal.

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