Method for extracting and differentiating human body heat source features of infrared pyroelectricity wavelet packet energy

Abstract

The invention belongs to the technical field of human body differentiation and provides a method for extracting and differentiating human body heat source features of infrared pyroelectricity wavelet packet energy. According to the method, the purposes of detection within a 360-degree large-scale range and with a long distance and detection of a static infrared heat source are achieved and the problems that the comfort and the energy-saving performance in an intelligent air conditioner conflict and the false alarm rate in a safety supervision system is high are effectively solved. Thus, according to the technical scheme, the method for extracting and differentiating the human body heat source features of infrared pyroelectricity wavelet packet energy comprises the following steps that a single pyroelectricity infrared detector is driven by a stepping motor to rotate at a constant speed, so that detection of a static object at the long distance and within 360-degree large-scale range is achieved; the detection range is within a disc, wavelet packet analysis is conducted on a collected sample of the human body heat source and a collected sample of a non-human-body heat source, wavelet packet energy serves as a feature of a signal, 5-folding-time cross validation is conducted through a BP neural network, and therefore the human body heat source and the non-human-body heat source are differentiated. The method for extracting and differentiating the human body heat source features of infrared pyroelectricity wavelet packet energy is mainly applied to occasions of the human body differentiation technology.

Description

technical field

[0001] The invention belongs to the technical field of human body discrimination. That is, the method of using pyroelectric infrared detectors to distinguish between human and non-human heat sources. Specifically, it involves a feature extraction and discrimination method for human body heat sources based on infrared pyroelectric information. Background technique

[0002] Human body discrimination technology research has great application value and research significance. On the one hand: In recent years, people have become more and more interested in smart homes, and some of the control products of smart homes have become household appliances, and some are becoming household appliances. As an indispensable part of home appliances, air conditioners have experienced a stage of rapid development in the past ten years. Both comfort and energy saving have become important indicators of high-end consumer products such as air conditioners. Through the detection ...

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