Human identifying device, human identifying method and human-presence-based illuminating system thereof

Patent metadata

Field	Value
Publication number	US-11620845-B2
Application number	US-202016821824-A
Country	US
Kind code	B2
Filing date	Mar 17, 2020
Priority date	Mar 17, 2020
Publication date	Apr 4, 2023
Grant date	Apr 4, 2023

Abstract

A human identifying device includes a temperature sensing module, a temperature pattern recognizing module and a human body identifying module. The temperature sensing module senses temperature distribution within the target area. The temperature pattern recognizing module determines at least one matching region out of the target area based on a human-resembling temperature feature within the temperature distribution. The temperature pattern recognizing module identifies at least one matching temperature sensor that corresponds to the at least one matching region. The human body identifying module determines if distribution of the at least one matching temperature sensor resembles at least one part of a human body contour.

First claim

What is claimed is:

1. A human identifying device, comprising:
a temperature sensing module, comprising a plurality of temperature sensors that defines a target region, wherein the temperature sensing module is configured to sense temperature distribution within the target area;
a temperature pattern recognizing module, configured to receive the temperature distribution from the temperature sensing module, configured to determine at least one matching region out of the target area that has a human-resembling temperature feature within the temperature distribution, and configured to identify at least one matching temperature sensor out of the plurality of temperature sensors that corresponds to the at least one matching region;
a human body identifying module, configured to receive distribution of the at least one matching temperature sensor, configured to determine if distribution of the at least one matching temperature sensor resembles at least one part of a human body contour, and configured to recognize at least one human among the at least one matching region when resemblance of the distribution of the at least one matching temperature sensor with at least one part of a human body contour exceeds a predetermined resemblance that indicates a lower bound probability corresponding to presence of at least one human body; and
a human recognizing history storage device configured to store the distribution of the at least one matching temperature sensor as a first distribution.

2. The human identifying device of claim 1 , wherein the plurality of temperature sensors are arranged in a polygon-formed matrix.

3. The human identifying device of claim 1 , wherein a number of the plurality of temperature sensors is determined according to a desired resolution of the plurality of temperature sensors and/or a desired area of the target area.

4. The human identifying device of claim 1 , wherein the human-resembling temperature feature comprises a sensed heat signature of about 34-40 degrees Celsius.

5. The human identifying device of claim 1 , wherein the temperature pattern recognizing module is further configured to retrieve distribution of the plurality of temperature sensors from the temperature sensing module, and further configured to generate the distribution of the at least one matching temperature sensors according to the distribution of the plurality of temperature sensors.

6. The human identifying device of claim 1 , wherein the human body identifying module is further configured to determine the resemblance of the distribution of the at least one matching temperature with at least one part of a human body contour to be higher when a larger number of the at least one matching temperature sensor is continuous-distributed to form more or larger parts that resemble the human body contour.

7. The human identifying device of claim 1 , wherein the temperature sensing module is further configured to sense temperature distribution within the target area to establish a temperature distribution history of the target area until a present moment;
wherein the temperature pattern recognizing module is further configured to determine a non-matching region out of the target area that has an unhuman-resembling temperature feature occurring at a latest previous moment preceding to the present moment, is further configured to calculate a time difference from the latest previous moment to the present moment, and is further configured to identify a non-matching temperature sensor out of the plurality of temperature sensors that corresponds to the non-matching region; and
wherein the human body identifying module is further configured to filter off the non-matching temperature sensor from the distribution of the at least one matching temperature sensors when the time difference exceeds a predetermined period.

8. The human identifying device of claim 7 , wherein the predetermined period indicates an average staying period of an environmental heat source.

9. The human identifying device of claim 1 , wherein the human body identifying module is further configured to, according to the distribution of the at least one matching temperature sensors, determine if a number of continuously-distributed matching sensors among the at least one matching temperature sensor exceeds a predetermined continuous number that indicates presence of a human body contour.

10. The human identifying device of claim 1 , wherein the human body identifying module is further configured to, according to the distribution of the at least one matching temperature sensors, determine a number of continuously-distributed matching temperature sensors among the at least one matching temperature sensor.

11. The human identifying device of claim 10 , wherein the human body identifying module is further configured to, determine edge temperature sensors located at edges of the distribution of the at least one matching temperature sensors, and is further configured to depict a sensed contour of the at least one matching region according to the determined edge temperature sensors.

12. The human identifying device of claim 11 , wherein the human body identifying module is further configured to determine contour resemblance of the sensed contour with a plurality of predetermined human-resembling contours, and is further configured to determine that at least one human is recognized among the at least one matching region when the determined contour resemblance of the sensed contour exceeds a predetermined contour resemblance that indicates a contour of at least one human body.

13. The human identifying device of claim 11 , wherein the human body identifying module is further configured to determine a number of matching temperature sensors located within an area enclosed by the sensed contour, and is further configured to determine that at least one human is recognized among the at least one matching region when the number of matching temperature sensors located within the area exceeds a predetermined number that indicates presence of at least one human body.

14. The human identifying device of claim 1 , wherein the temperature sensing module, the temperature pattern recognizing module and the human body identifying module are further configured to, after a predetermined period of time that the first distribution is stored, cooperate to track temperature distribution of the at least one recognized human and generate a second distribution that associates with at least one succeeding matching temperature sensors out of the plurality of temperature sensors; and
wherein the human recognizing history storage device is further configured to store the second distribution.

15. The human identifying device of claim 14 , wherein the human body identifying module is further configured to, by referencing the human recognizing history storage device, compare the first distribution with the second distribution to determine a moving direction of the at least one recognized human.

16. The human identifying device of claim 14 , further comprising:
a timer, configured to generate a first timestamp when the first distribution is stored in the human recognizing history storage device, configured to generate a second timestamp when the second distribution is stored in the human recognizing history storage device, and configured to calculate a time difference between the first timestamp and the second timestamp;
wherein the human recognizing history storage device is further configured to store the first timestamp for the first distribution and is further configured to store the second timestamp for

Assignees

• Xiamen Eco Lighting Co Ltd

Inventors

• Xie Jianxin
• Yang Wenhui
• Lan Tian
• Lin Liping

Classifications

• G01J5/025

  Interfacing a pyrometer to an external device or network; User interface · CPC title

• G01V9/005

  by thermal methods, e.g. after generation of heat by chemical reactions · CPC title

• G01V9/00 Primary

  Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00 · CPC title

• G06V10/25

  Determination of region of interest [ROI] or a volume of interest [VOI] · CPC title

• G06V10/759

  Region-based matching · CPC title