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Method and system for access control proximity location

  • US 9,697,656 B2
  • Filed: 01/26/2015
  • Issued: 07/04/2017
  • Est. Priority Date: 08/19/2014
  • Status: Active Grant
First Claim
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1. A security system, comprising:

  • user devices that transmit wireless signals including packet data, wherein the packet data includes user information;

    access points that provide access to restricted areas; and

    positioning units located near the access points that include two or more antennas, wherein each of the positioning units receive the wireless signals from the user devices, and determine locations of the user devices relative to the access points,wherein each of the positioning units includes a first omnidirectional antenna that receives the wireless signals from the user devices when the user devices are located beyond a threshold area of the access points, and a directional antenna that receives the wireless signals from the user devices when the user devices are located within a threshold area of the access points.

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