Preface The Spring Festival has come to an end, and I believe that many friends who work on weak current projects are trapped at home. In the past, they would have arrived at the construction site long ago and were ready to start work. However, the weak current industry has been

Preface

The Spring Festival has passed. I believe that many friends who are doing weak current are trapped at home. In the past, they would have arrived at the construction site long ago and were ready to start work. This year's epidemic is more serious and the situation is special. Most weak current engineering personnel are working remotely from home or waiting for information on the resumption of work at the construction site. However, the weak current industry has been quite lively in the past few days before the holiday. Thermal imaging temperature measurement equipment has been sold out, and even sold out. There are also many friends in the circle who are crazy about thermal imaging product solutions and product shipment information. This is the first time that this phenomenon has occurred. See!

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Technology companies can be seen in every "battle". Of course, the protagonist of the technology company's products this time is thermal imaging products. Don't underestimate this kind of thermal imaging camera. This kind of camera can now identify high body temperature in seconds. to help security personnel quickly screen suspected pneumonia patients.

Thermal imaging human body temperature measurement

1. Introduction to thermal imaging technology

Thermal imaging refers to the infrared radiation emitted by different parts of the object surface being detected by the infrared detector , and then undergoes photoelectric conversion and signal processing, and then gives different temperatures Giving different colors, a black and white or color image representing the temperature distribution on the surface of the object is finally displayed on the screen, which is a thermal image.

Principle of Thermal Imaging Technology

Traditional temperature measurement tools such as thermometers, forehead thermometers, and spot thermometers are not only slow to check, but also require close contact, which brings a great risk of cross-infection. The thermal imaging temperature measurement solution has the characteristics of non-contact, high efficiency, and easy use. It can be set up in a corner several meters away to achieve real-time body temperature measurement of large-scale crowds, and automatically capture people with fever for secondary detection. It is precisely because of the advantage of allowing thermal imaging to measure human body temperature that thermal imaging can be widely deployed in scenes with large human flow such as airports, train stations, bus stations, and ports.

Human body temperature measurement handheld comparison

Thermal imaging scene introduction

2, thermal imaging core components

Infrared detector is the core component and the core of the infrared industry chain. Take the "uncooled infrared focal plane detector" self-produced by Dali Technology and Amap Infrared . Currently, there are only FLIR and FLUKE from the United States, Japan's NEC and China's Dali and Amap, etc. in the world. of companies are capable of mass production. The infrared detectors in the United States have restrictions on China, so they are also a scarce resource.

Amap infrared human body temperature measurement

Dali human body temperature measurement - 1

Dali human body temperature measurement - 2

In addition to the infrared detector, black body is another key component, a device placed opposite the thermal imager Calibration equipment. Without the cooperation of blackbody, the error of many infrared body temperature detectors is ±0.5°C, and the error of infrared body temperature detectors loaded with blackbody is ±0.3°C.

Load black body type thermal imaging camera

Black body installation

Recently established a weak current learning circle, and now there are 2383 weak current industry technical members in the circle who can communicate with each other. And friends in the circle can continuously obtain information, including drawings, plans, lists, learning videos, etc. How to get it? You can click below to join my circle: Let us exchange technical problems encountered in weak current projects. This circle has no time limit, is permanent, and has a preferential price of 69 yuan. Even if calculated over a year, it only costs 1.6 cents per day, once. Pay the fee and benefit for life!

(The circle card has been added here, please go to the Today's Toutiao client to view)

3, manufacturer's plan

Let's take a look at the mainstream thermal imaging manufacturers on the market, Amap Infrared, Dali, Arrow Electronics, Hikvision, and Dahua etc. can provide corresponding solutions. The plans are relatively similar, and the front end is mainly differentiated based on three construction methods, which are mainly personnel channel temperature screening, rapid deployment and control screening, and handheld patrol body temperature screening. Through the deployment of different front-end scenarios, the obtained personal identity information, body temperature information, etc. can be uploaded to the platform to achieve personnel body temperature screening in public scenes.

Haikang thermal imaging body temperature detection system architecture diagram

Dahua thermal imaging body temperature detection system architecture

personnel channel screening

rapid deployment temperature measurement

FLIR handheld temperature measurement

summary

thermal imaging human body temperature measurement solution, non-contact temperature measurement is very Suitable for current epidemic prevention needs, it is suitable for train stations, airports, bus stations, high-speed entrances and exits, office buildings, communities, and scenes with a large flow of people. It can replace the original body temperature gun and reduce the risk of secondary infection. Once a person with an abnormal body temperature is found, the system will automatically give an early warning. , and start the review plan!