Systems and methods for increasing alarm confidence in EAS detection systems

Patent metadata

Field	Value
Publication number	US-11514768-B2
Application number	US-202017092840-A
Country	US
Kind code	B2
Filing date	Nov 9, 2020
Priority date	Jan 28, 2019
Publication date	Nov 29, 2022
Grant date	Nov 29, 2022

Abstract

Systems and methods for operating an EAS detection system. The methods comprise: detecting an Active Security Tag (“AST”) in an EAS detection zone; determining whether AST is coupled to an object identified in a list; and performing operations when a determination is made that AST is coupled to a listed object. The operations involve: accessing sensor data generated by at least one sensor device disposed on/near display equipment associated with the listed object; processing the sensor data to determine whether a person was within a defined distance range of AST during a period of time immediately preceding the detecting; concluding that a false alarm scenario exists when the sensor data indicates that a person was not within the defined distance range of AST during the period of time; and suppressing alarm issuance by the EAS detection system in response to the false alarm scenario conclusion.

First claim

What is claimed is:

1. A method for operating an Electronic Article Surveillance (“EAS”) detection system, comprising:
detecting, by the EAS detection system, an alarm of a tag of the system; and
determining whether or not the alarm is a false alarm by:
determining whether the alarmed tag was on display within a detection zone of the system prior to the alarm; and
performing the following operations when a determination is made that the alarmed tag was on display:
accessing sensor data generated by at least one sensor device disposed on or near display equipment associated with the alarmed tag; and
determining, based on the sensor data, whether a person was within a defined distance range of the alarmed tag during a period of time immediately preceding the detecting; and

suppressing an issuance of the alarm by the EAS detection system in response determining that the person was not within the defined distance range of the alarmed tag during a period of time immediately preceding the detecting.

2. The method according to claim 1 , determining whether the alarmed tag was on display comprises performing operations by the EAS detection system to read security tags coupled to objects on display within the detection zone during off hours.

3. The method according to claim 1 , further comprising outputting an alarm by the system when a determination is made that the alarmed tag is not coupled to an object.

4. The method according to claim 1 , wherein the at least one sensor device comprises at least one of a motion sensor and a camera.

5. The method according to claim 1 , further comprising using the sensor data to classify the person as a customer or employee when a determination is made that the person was within the defined distance range of the alarmed tag during the period of time.

6. The method according to claim 5 , further comprising concluding that the alarm is a false alarm when the person is classified as an employee.

7. The method according to claim 5 , further comprising concluding that the alarm is a real alarm when the person is classified as a customer.

8. The method according to claim 5 , further comprising concluding that the alarm is a false alarm when (a) the person is classified as a customer and (b) image analysis indicates the customer is not an individual present in the EAS detection zone at the time of the detecting or that no individual was present in the EAS detection zone at the time of the detecting.

9. The method according to claim 5 , further comprising concluding that the alarm is a false alarm when (a) the person is classified as a customer and (b) image analysis indicates that an object to which the alarmed security tag is coupled is not the object present in the EAS detection zone at the time of the detecting.

10. The method according to claim 1 , further comprising using the sensor data to determine whether an inanimate object was within the defined distance range of the alarmed tag during the period of time immediately preceding the detecting.

11. The method according to claim 10 , further comprising concluding that the alarm is a false alarm when a determination is made that an inanimate object other than an order-fulfilling robot was within the defined distance range of the alarmed tag during the period of time.

12. A system, comprising:
a processor; and
a non-transitory computer-readable storage medium comprising programming instructions that are configured to cause the processor to implement a method for operating an Electronic Article Surveillance (“EAS”) detection system, wherein the programming instructions comprise instructions to:
detect, by the EAS detection system, an alarm of a tag of the system; and

determining whether or not the alarm is a false alarm by:
determine whether the alarmed tag was on display within a detection zone of the system prior to the alarm; and
perform the following operations when a determination is made that the alarmed tag was on display:
access sensor data generated by at least one sensor device disposed on or near display equipment associated with the alarmed tag; and
determine, based on the sensor data, whether a person was within a defined distance range of the alarmed tag during a period of time immediately preceding the detecting; and

suppress an issuance of the alarm by the EAS detection system in response determining that the person was not within the defined distance range of the alarmed tag during a period of time immediately preceding the detecting.

13. The system according to claim 12 , wherein the programming instructions further comprise instructions to cause the EAS detection system to read security tags coupled to objects on display within the detection zone during off hours.

14. The system according to claim 12 , wherein the programming instructions further comprise instructions to cause the EAS detection system to issue the alarm when a determination is made that the alarmed tag is not coupled to an object.

15. The system according to claim 12 , wherein the at least one sensor device comprises at least one of a motion sensor and a camera.

16. The system according to claim 12 , wherein the programming instructions further comprise instructions to use the sensor data to classify the person as a customer or employee when a determination is made that the person was within the defined distance range of the alarmed tag during the period of time.

17. The system according to claim 16 , wherein the programming instructions further comprise instructions to conclude that the alarm is a false alarm when the person is classified as an employee.

18. The system according to claim 16 , wherein the programming instructions further comprise instructions to conclude that the alarm is a real alarm when the person is classified as a customer.

19. The system according to claim 16 , wherein the programming instructions further comprise instructions to conclude that the alarm is a false alarm when (a) the person is classified as a customer and (b) image analysis indicates the customer is not an individual present in the EAS detection zone at the time of the detecting or that no individual was present in the EAS detection zone at the time of the detecting.

20. The system according to claim 16 , wherein the programming instructions further comprise instructions to conclude that the alarm is a false alarm when (a) the person is classified as a customer and (b) image analysis indicates that an object to which the alarmed tag is coupled is not the object present in the EAS detection zone at the time of the detecting.

Assignees

• Sensormatic Electronics Llc

Inventors

• Ouellette Glen
• Huang John C Y
• Trivelpiece Steve E
• Westmacott Ian

Classifications

• G08B13/2454

  Checking of authorisation of a person accessing tagged items in an EAS system · CPC title

• G08B13/2482

  EAS methods, e.g. description of flow chart of the detection procedure · CPC title

• G08B13/2417

  having a radio frequency identification chip · CPC title

• G08B13/248 Primary

  EAS system combined with another detection technology, e.g. dual EAS and video or other presence detection system · CPC title

• H04N7/181

  for receiving images from a plurality of remote sources · CPC title