Gate device system and control method thereof

Patent metadata

Field	Value
Publication number	US-11594091-B2
Application number	US-202117348917-A
Country	US
Kind code	B2
Filing date	Jun 16, 2021
Priority date	Dec 26, 2018
Publication date	Feb 28, 2023
Grant date	Feb 28, 2023

Abstract

A method for controlling a gate device in connection with at least one gate and two frameworks connected to the at least one gate is provided. The method may include identifying an authorization status of an object. The method may include detecting pressure signals caused by the object at a first moment, if the authorization status is satisfied. The method may include determining whether or not an illegal tailgating event occurred based on the pressure signals. The method may further include generating a control signal for opening the at least one gate to facilitate the object to pass through the at least one gate in response to a determination that the illegal tailgating event did not occur.

First claim

What is claimed is:

1. A method for controlling a gate device in connection with at least one gate, comprising:
identifying, by an identification module, an authorization status of an object;
detecting, by a pressure sensor module, pressure signals caused by the object at a first moment, if the authorization status is satisfied;
determining, by a processing module, whether or not an illegal tailgating event occurred based on the pressure signals, including:
generating, by the processing module, pressure information by processing the pressure signals corresponding to the first moment, wherein the pressure information includes at least one first trigger region, a center point of the at least one first trigger region;
determining, by the processing module, a first number of the at least one first trigger region; and
determining, by the processing module, that the illegal tailgating event does not occur if the first number is equal to or less than two;
if the first number is greater than two, determining, by the processing module, at least one second trigger region from the at least one first trigger region, wherein an area of the at least one second trigger region is within a first area range;
determining, by the processing module, a second number of the at least one second trigger region;
determining, by the processing module, that the illegal tailgating event did not occur if the second number is equal to or less than two;
determining, by the processing module, that the illegal tailgating event occurred if the second number is greater than two; and

generating, by the processing module, a control signal for opening the at least one gate to facilitate the object to pass through the at least one gate in response to a determination that the illegal tailgating event did not occur.

2. The method of claim 1 , further comprising:
generating, by the processing module, an instruction for triggering a display module to display an alert signal for warning the illegal tailgating event.

3. The method of claim 1 , wherein the at least one first trigger region includes a plurality of sub-first trigger regions corresponding to the first moment, and a distance between center points of two of the plurality of sub-first trigger regions is less than a first predetermined threshold.

4. The method of claim 1 , wherein the at least one first trigger region includes a plurality of sub-first trigger regions corresponding to the first moment, and a shortest distance between edges of two of the plurality of sub-first trigger regions is less than a second predetermined threshold.

5. The method of claim 1 , further comprising:
detecting, by pressure sensor module, second pressure signals caused by the object at a second moment;
generating, by the processing module, at least one third trigger region by processing the second pressure signals corresponding to the second moment;
determining, by the processing module, a third number of the at least one third trigger region;
determining, by the processing module, that the object has gone through the gate device if the third number is equal to zero;
generating, by the processing module, the control signal for closing the at least one gate in response to a determination that the object has gone through the gate device.

6. The method of claim 5 , further comprising:
determining, by the processing module, at least one fourth trigger region from the at least one third trigger region, wherein an area of the at least one fourth trigger region is within the first area range if the third number is not equal to zero;
determining, by the processing module, a fourth number of the at least one fourth trigger region;
generating, by the processing module, the instruction for triggering the display module to display the alert signal for reminding the object to go through the gate device as soon as possible if the fourth number is equal to one or two; and
generating, by the processing module, the instruction for triggering the display module to display the alert signal for warning the illegal tailgating event if the fourth number is greater than two.

7. The method of claim 5 , wherein a time difference of the first moment and the second moment is within a predetermined time threshold.

8. The method of claim 7 , wherein the predetermined time threshold is adjusted according to an object type.

9. The method of claim 8 , wherein the object type includes at least one of a person or a wheel-based object.

10. The method of claim 9 , wherein the object type is determined based on a pressure track from the first moment to the second moment.

11. A gate device system, comprising:
at least one storage device storing a set of instructions;
a plurality of pressure sensors configured to detect pressure signals caused by an object; and
at least one processor in communication with the at least one storage device and the plurality of pressure sensors, wherein when executing the set of instructions, the at least one processor is configured to cause the system to:
identify an authorization status of the object;
detect the pressure signals caused by the object at a first moment, if the authorization status is satisfied;
determine whether or not an illegal tailgating event occurred based on the pressure signals, wherein to determine whether or not an illegal tailgating event occurred based on the pressure signals, the at least one processor is configured to cause the system to:
generate pressure information by processing the pressure signals corresponding to the first moment, wherein the pressure information includes at least one first trigger region, a center point of the at least one first trigger region;
determine a first number of the at least one first trigger region; and
determine that the illegal tailgating event did not occur if the first number is equal to or less than two;
if the first number is greater than two, determine at least one second trigger region from the at least one first trigger region, wherein an area of the at least one second trigger region is within a first area range;
determine a second number of the at least one second trigger region;
determine that the illegal tailgating event did not occur if the second number is equal to or less than two;
determine that the illegal tailgating event occurred if the second number is greater than two; and

generate a control signal for opening the at least one gate to facilitate the object to pass through the at least one gate in response to a determination that the illegal tailgating event did not occur.

12. The system of claim 11 , wherein the at least one processor is further configured to cause the system to:
generate an instruction for triggering a display module to display an alert signal for warning the illegal tailgating event.

13. The system of claim 11 , wherein
the at least one first trigger region includes a plurality of sub-first trigger regions corresponding to the first moment, a distance between center points of two of the plurality of sub-first trigger regions is less than a first predetermined threshold, or
a shortest distance between edges of two of the plurality of sub-first trigger regions is less than a second predetermined threshold.

14. The system of claim 11 , wherein the at least one processor is further configured to cause the system to:
detect second pressure signals caused by the object at a second moment;
generate at least one third trigger region by processing the second pressure signals corresponding to the second moment;
determine a third number of the at least one third trigger region;
determine that the

Assignees

• Zhejiang Dahua Technology Co

Inventors

• Song Jiacai
• Du Kang

Classifications

• G08B7/06

  using electric transmission {, e.g. involving audible and visible signalling through the use of sound and light sources} · CPC title

• G07C2209/62

  Comprising means for indicating the status of the lock · CPC title

• G07C9/15 Primary

  with arrangements to prevent the passage of more than one individual at a time · CPC title

• G01L5/1623

  of pressure sensitive conductors (using piezoresistors G01L5/162) · CPC title

• G07C9/30

  not involving the use of a pass · CPC title