Indoor human body detection method based on infrared array sensor

Abstract

The invention relates to an indoor human body detection method based on an infrared array sensor. The method comprises steps that when some frame where a person exists is detected, the counting results of continuous three frames from an initial frame are compared, whether the counting results of at least two frames are the same or not is determined, if yes, the counting results of the two frames are output, otherwise, whether differences between the counting results of adjacent frames are both 1 or not is determined, and if yes, the average value of the counting results of the continuous frames is output; and temperature data of two frames are obtained, whether the counting result of the first frame is the same as the last detection result or not is determined, if yes, the output is maintained unchanged, otherwise, whether the counting result of the second frame is the same as the last detection result or not is determined, if yes, the output is maintained unchanged, otherwise, whether the counting results of the first frame and the second frame are the same or not is determined, if yes, the counting result is output as the detection result of this time, otherwise, the output is maintained unchanged. Compared with the prior art, the method is advantaged by being higher in detection precision, and capable of effectively eliminating interference and the like.

Description

technical field [0001] The invention relates to a human body detection method, in particular to an indoor human body detection method based on an infrared array sensor. Background technique [0002] With the continuous development of science and technology, automated and intelligent electrical products have become current research hotspots. For example, when it is detected that there are people in the room, it can automatically adjust the indoor temperature and humidity to the best state, and when it is detected that there is no one in the room for a long time Automatically shut down when the time comes, and realize the smart air conditioner of smart energy saving. [0003] The principle of the infrared array sensor is to divide a certain area into arrays. For example, MLX90621 is a 4×16 infrared array thermopile sensor, which is suitable for measuring thermal radiation and non-contact temperature measurement of objects. Its 60°×15° Field of view: In the office meeting room...

AI Technical Summary

Problems solved by technology

Existing infrared sensor-based human target detection technologies often only analyze and process single-frame data in real time, and there are still problems such as low detection accuracy and inability to effectively eliminate interference.

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