Method and system for inhibiting temperature drift of infrared equipment in starting stage

A start-up phase and temperature drift technology, applied in the field of infrared temperature measurement, can solve the problems of long-lasting temperature drift, different time required, and difficult for users to estimate correctly.

Active Publication Date: 2020-08-14
北京波谱华光科技有限公司
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Problems solved by technology

This prior art solution requires the equipment to be started in advance before use, but the time required for temperature measuring equipment using different types of infrared detectors from startup to stable working state is different, and it is often difficult for users to estim

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  • Method and system for inhibiting temperature drift of infrared equipment in starting stage
  • Method and system for inhibiting temperature drift of infrared equipment in starting stage
  • Method and system for inhibiting temperature drift of infrared equipment in starting stage

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Embodiment Construction

[0036] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0037] The working principle of the infrared detector is to detect and image the thermal radiation of all objects, so the infrared detector has high thermal sensitivity. After the infrared rapid abnormal body temperature screening instrument using infrared detector as the core component of temperature measurement is turned on, the internal components start to work and heat up continuously and generate a lot of heat, which is disturbed by the continuously changing heat. At this stage, the infrared rapid abnormal body temperature screening The temperature output measured by the detector for a fixed temperature is not accurate and stable, but changes continuously, resulting in inaccurate temperature measurement. After ...

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Abstract

The invention relates to the field of infrared temperature measurement, in particular to a method and system for inhibiting temperature drift of infrared equipment in a starting stage. The method comprises the following steps: starting the infrared equipment facing a black body, and synchronously recording the internal temperature data and imaging gray scale data of the infrared equipment in the starting stage; performing function fitting on the synchronously recorded internal temperature data and imaging gray scale data based on a cubic interpolation method to obtain a temperature drift suppression function of the infrared equipment in a starting stage; employing a temperature drift suppression function for suppressing temperature drift of the infrared equipment in the starting stage in the subsequent starting process, wherein the starting stage is a period from the moment when the infrared equipment is started to the moment when the infrared equipment works normally. The method has agood improvement effect on the problem of long-term temperature drift in the starting process of the infrared rapid abnormal body temperature screening instrument, the infrared rapid abnormal body temperature screening instrument can rapidly enter an accurate temperature measurement state, and long-term advanced starting or waiting is not needed.

Description

technical field [0001] The invention relates to the field of infrared temperature measurement, in particular to a method and system for suppressing temperature drift of infrared equipment during startup. Background technique [0002] For malignant infectious diseases such as SARS and new coronary pneumonia, timely identification and proper treatment of infected persons are important means to prevent the continuous spread of the epidemic. Since people infected with this type of disease are often accompanied by symptoms of fever and high fever, screening people with abnormal body temperature in the crowd has become one of the main methods to identify infected people. The infrared rapid abnormal body temperature screening instrument can realize non-contact body temperature measurement of a large number of people without affecting the efficiency of pedestrian traffic. This device is suitable for airports, railway stations, subway stations and other places with large crowd densit...

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Application Information

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IPC IPC(8): G01J5/00G01J5/08G01K13/00
CPCG01J5/0025G01J5/0887G01J2005/0077G01K13/223G01J5/80
Inventor 刘智嘉祁海军赵金博高旭辉吴鹤刘宏帝吴金浩李勇
Owner 北京波谱华光科技有限公司
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