Location control system and method

• US 10,733,861 B2
• Filed: 11/21/2017
• Issued: 08/04/2020
• Est. Priority Date: 11/22/2016
• Status: Active Grant

• Current Assignee: Motorola Solutions, Inc.
• Original Assignee: Avigilon Corporation (Motorola Solutions, Inc.)
• Inventors: Russo, Pietro
• Primary Examiner(s): Phan, Hai
• Assistant Examiner(s): Tang, Son M
• Application Number:
  US15/820,118
• Publication Number:
  US 20180144594A1
• Time in Patent Office: 987 Days
• CPC Class Codes: G07C 2009/00769 with data transmission performed by wireless means
• CPC Class Codes: G07C 2209/64 using a proximity sensor
• CPC Class Codes: G07C 9/00174 Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys mechanical locks with electric permutation E05B49/00; arrangements for sensing or reading record carriers G06K7/00; electronic switching H03K17/00
• CPC Class Codes: G07C 9/00571 operated by interacting with a central unit
• CPC Class Codes: G08B 13/19613 Recognition of a predetermined image pattern or behaviour pattern indicating theft or intrusion
• CPC Class Codes: G08B 13/24 by interference with electromagnetic field distribution

Abstract

A method and system for controlling a passage from a secured location to an unsecured location based on presence detection of the unsecured location, including: a radar system in the secure location configured to transmit radar signals to and receive radar signals from the unsecured location; on determination of the presence, by the radar system, of a first person in the unsecured location proximate to the passage, providing an alert. The determination of the presence of the first person in the unsecured location may be triggered by a second person in the secured location moving proximate to the exit or by the second person in the secured location requesting to exit through the passage.

Claims

1. A method for controlling a passage from a secured location to an unsecured location, comprising:

providing a radar system in the secured location, the radar system configured to;

transmit radar signals to the unsecured location through a barrier separating the secured and unsecured locations; and

receive, through the barrier, reflected radar signals from the unsecured location proximate to the passage; and

on determination of the presence, by the radar system, of a first person in the unsecured location proximate to the passage, providing an alert while the barrier prevents movement of the first person from the unsecured location to the secured location;

wherein the determination of the presence of the first person is triggered by a second person in the secured location requesting to exit through the passage.

2. The method of claim 1 wherein the passage is secured.

3. The method of claim 2 further comprising opening the passage when the radar system does not determine the presence of the first person.

4. The method of claim 1 further comprising opening the passage if the first person presents credentials.

5. The method of claim 1 wherein the alert is provided to the second person.

6. The method of claim 1 wherein the passage allows movement through the barrier.

7. The method of claim 6 wherein the barrier is at least one of:

a wall, a hedge, and a geofence.

8. The method of claim 1 wherein the passage is at least one of:

a door and a gate.

9. A physical security system, comprising:

a radar system located in a secured location outside a passage from the secured location to an unsecured location, the radar system configured to;

transmit, through a barrier separating the unsecured and secured locations, radar signals to the unsecured location;

receive, through the barrier, reflected radar signals from the unsecured location;

a processor in communication with the radar system and configured to;

determine, using the reflected radar signals, if the reflected radar signals indicate a presence of a first person in the unsecured location; and

on determination using the reflected radar signals of the presence of the first person, provide instructions to cause an alert or prevent use of the passage while the barrier prevents movement of the first person from the unsecured location to the secured location;

wherein the determination of the presence of the first person in the unsecured location occurs when a second person in the secure location requests to exit through the passage.

10. The system of claim 9 wherein the passage is locked, and wherein the processor is configured to provide instructions to open the passage.

11. The system of claim 9 wherein the processor is further configured to provide instructions to open the passage when the reflected radar signals do not indicate the presence of the first person.

12. The system of claim 9 wherein the processor is further configured to provide instructions to allow movement through the passage if the second person presents credentials.

13. The system of claim 9 wherein the processor is configured to provide instructions to provide the alert to the second person.