Temperature identification and classification method based on dual-band pyroelectric device

A technology for identifying and classifying electrical devices. It is applied to pattern recognition in signals, character and pattern recognition, and instruments. It can solve problems such as low universality and achieve low universality and good temperature recognition and classification effects. Effect

A technology for identifying and classifying electrical devices. It is applied to pattern recognition in signals, character and pattern recognition, and instruments. It can solve problems such as low universality and achieve low universality and good temperature recognition and classification effects. Effect

CN114239654AActive Publication Date: 2022-03-25UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Temperature identification and classification method based on dual-band pyroelectric device
  • Temperature identification and classification method based on dual-band pyroelectric device
  • Temperature identification and classification method based on dual-band pyroelectric device

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Embodiment Construction

[0028] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. The overall process of this embodiment is as follows figure 1 shown.

[0029] figure 2 Shown is a schematic diagram of the internal structure of the pyroelectric probe. Its pyroelectric infrared sensor is composed of optical filter, pyroelectric detection element and preamplifier. The compensation type pyroelectric sensor also has a temperature compensation element. In order to prevent the external environment from interfering with the sensor output signal, the above elements are vacuumed. Enclosed in a metal battalion. The filter of the pyroelectric sensor is a band-pass filter, which is packaged on the top of the sensor housing, so that the infrared radiation of a specific wavelength can selectively pass through, and the infrared radiation that...

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Abstract

The invention relates to the field of temperature identification and classification of pyroelectric detection, in particular to a temperature identification and classification method based on a dual-band pyroelectric device. According to the dual-band characteristic output by a dual-band pyroelectric device, the characteristic that different temperatures of a target black body can map different dual-band ratios is utilized, the dual-band ratios serve as the main characteristic of a signal, and part of characteristics of a time domain and a frequency domain are additionally added to serve as a characteristic set of the signal, so that extraction of the main characteristic of the signal is completed; and the method is combined with machine learning, so that a good temperature identification and classification effect is achieved. The method is easy to implement, can achieve a good classification effect, effectively solves the problem that an existing temperature recognition and classification method is limited by respective categories and is low in universality, can be applied to other fields, and provides a new thought for development of other fields.

Description

technical field [0001] The invention relates to the field of temperature identification and classification of pyroelectric detection, in particular to a method for temperature identification and classification based on dual-band pyroelectric devices, which involves the acquisition of long-wave and medium-wave output signals based on dual-band pyroelectric devices. Complete the identification and classification method for the target temperature. Background technique [0002] In the field of hardware-based computer recognition, the traditional temperature recognition technology based on infrared pictures collected by infrared camera equipment has met the application requirements and has high recognition accuracy, but because the recognition algorithm based on infrared images is too It is complex and requires powerful computing equipment for support, resulting in high prices for the entire system, and it is difficult to apply it in some specific occasions. And in some areas wh...

Claims

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Application Information

Patent Timeline
25 Mar 2022
Publication
CN114239654A
IPC
G06K9/00; G06N3/00; G06N20/20
CPC
G06N3/006; G06N20/20; G06F2218/04; G06F2218/08; G06F2218/12; Y02D10/00
Inventors
罗文博; 宋泽乾