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How will infrared thermal imaging develop after the COVID-19? Applications in the civilian field are critical

2020-04-20 PangWenzheng from DALI Technology 284 people follow

How will infrared thermal imaging develop after the COVID-19? Applications in the civilian field are critical

China's infrared thermal imaging instrument is first applied in the military field, in recent years, with the development and maturity of infrared imaging technology, a variety of low-cost infrared imaging equipment suitable for civilian use has been introduced, it is playing an increasingly important role in various fields of the national economy, the application scene gradually expanded. Especially around the Spring Festival this year, a national response to the prevention and control of new coronavirus infection of the pneumonia outbreak began. In this resistance war, as the first gate of epidemic detection, infrared thermal imaging temperature screening plays an important role in the outbreak prevention and control battle. This paper will make a simple analysis of the development of the infrared thermal imaging market.


The application of infrared thermal imaging is expanding

In recent years, with the continuous development of MEMS technology, thermal imaging detectors to smaller size, larger resolution, lower power consumption trend, with the reduction of thermal imaging detector costs, infrared thermal imaging applications more and more extensive, new applications continue to be expanded, such as: animal epidemic quarantine, clothing field insulation and breathability detection, automotive unmanned field, cinema flow monitoring, nursing home medical care, outdoor night vision, residential security, emergency prevention and control and other, Its market development prospects are broad.


Looking back at 2019, the main focus of infrared thermal imaging market development is in the civil market, infrared thermal imaging products from the original industrial control, petrochemical, power monitoring, security monitoring and other areas of industrial consumer goods, gradually to automotive-assisted driving, intelligent air conditioning, residential security, outdoor night vision, fire monitoring, public health safety prevention and control and other personal consumer goods development. For example, in this year's consumer electronics exhibition held in Shanghai, the United States, Haier and other air-conditioning manufacturers have launched intelligent air conditioning, for air conditioning to add infrared induction and thermal imaging principles, accurately perceive people's position and temperature, intelligent selection of comfortable temperature and wind direction, so as to achieve "people move with the wind" and comfortable wind, save the trouble of manual regulation; At the same time, the infrared thermal imager equipped with air conditioning can monitor the indoor heat source, and realize remote automatic alarm by mobile phone app when the fire occurs at home.


In the future, with the increasing maturity of the coking plane detector preparation process and the improvement of engineering level, it is expected that the detector cost will gradually decrease in the foreseeable time in the future, and the application of infrared cameras in different civilian fields will become more and more popular.


AI technology plus thermal imaging technology products meet new breakthrough

In recent years, with the rapid development of artificial intelligence technology, in the field of thermal imaging, AI-plus thermal imaging has brought about great changes. Through AI deep learning technology, thermal imaging can not only measure temperature, but also achieve more intelligent analysis functions, while enterprises will be the current mainstream face capture algorithm and thermal imaging organic combination, to achieve accurate recognition of faces in the dark, to provide customers with AI-plus thermal imaging higher application value. With AI enabled, thermal imaging applications have more new manifestations:


First, the combination of "AI and infrared thermal imaging" technology of infrared thermal imaging temperature screening system, through the front-end infrared camera and high-definition camera, the use of face recognition algorithm, accurate identification of each person in the field of the population forehead temperature, effectively solve the traditional thermal imaging of the whole area of temperature misinformation, to achieve more accurate human temperature recognition. The maximum distance of temperature measurement reaches 10 meters, which can effectively avoid contact infection and achieve "contactless distance" temperature monitoring in public places. At present, it has been widely used with railway stations, airports, subway stations, docks and other key transportation hubs, as well as shopping malls, office buildings, schools and other large traffic public places, fully automatic face recognition, no sense of customs clearance, quickly found abnormal body temperature, to provide the first line of steel defense against epidemic prevention.


Second, the kitchen, logistics warehouse, engine room, power supply, battery car charging piles, museums and other areas of accurate fire warning. In practical applications, infrared light released by an object is received by an infrared thermal imaging camera and converted into temperature information in real time. At the same time, combined with AI image recognition technology, the target object around the demarcated area of human identification, detection of whether there is a person, when found that the designated area temperature continues to rise, to reach the set warning temperature, and no one detected, while meeting these two conditions will trigger an early warning. Depending on the urgency, alerts are issued in the form of text messages, e-mails, telephone notifications, and surveillance screen windows. When the temperature reaches the second-level warning temperature, the system will text, email notification related administrators, etc., to reach the first-level warning temperature, the system will automatically call notification.


The third is to achieve accurate recognition of faces in the dark. When using a thermal imaging camera to capture a facial image, the main challenge is that the captured thermal image must match the monitoring image library of the normal visible image of the target person. The resulting image needs to be matched to a known face in the database to identify the target. Thermal facial recognition technology is of great use in the pursuit of fugitives, the fight against terrorists, night combat.

Fourth, the combination of infrared thermal imaging and low-light dual light, through multispectral image fusion technology, and then through AI's deep learning technology, to achieve increased security of brush face payment. The infrared light released by the object is received by the infrared thermal imaging camera and converted to temperature information in real time. At the same time, combined with AI image recognition technology, you can increase the security of brush face payment.


Fifth, infrared thermal imaging is effectively applied in automobile-assisted driving. In recent years, with the development of China's automobile market, we are more and more concerned about active safety, infrared thermal imaging technology in the field of vehicle stort has been continuously developed, has become an important program to improve road safety. Many enterprises have introduced infrared thermal imaging vehicle-assisted driving systems, such as such products are an important part of active safety, get more and more attention. Under the empowerment of AI, these products are constantly upgraded to facilitate their application.


Challenges in the infrared thermal imaging market

The current challenges in the infrared thermal imaging market are mainly reflected in the following areas:

 

One is the price. Compared with traditional CCTV cameras and active infrared cameras, infrared thermal imaging is significantly higher in price, especially high-pixel thermal imaging.


Second, market acceptance needs to be improved. Because the imaging principle of infrared thermal imaging can only show the basic contours of objects, can not recognize the characteristics of objects, resulting in market acceptance is affected, especially in the field of security;


Third, compared with ordinary camera technology, the user's awareness of thermal imaging technology is generally not high, and many customers do not understand the advantages of thermal imaging compared to ordinary security monitoring technology. This fight against the new coronary epidemic, so that the public on infrared thermal imaging technology and products have more updated understanding. Thermal imaging suppliers should take this as an opportunity to do a good job of publicity, training and so on after the outbreak, so that the market understands the uniqueness of infrared thermal imaging technology. At the same time establish good channel partners, through education channel partners, to help partners better understand the technical details, so that more solutions and help for end users.


The development direction of infrared thermal imaging technology

At present, infrared thermal imaging technology is developing in the direction of focal plane imaging system. The focal plane imaging system has entered the third generation infrared detection system characterized by super-large array size, small super-small cell spacing, low cost, and high detection rate, and is moving towards high sensitivity, high resolution, low power consumption, miniaturization and intelligence. The development trends and requirements of the future coke plane are as follows:

(1) megapixels, small cells, improve target resolution ability

 (2) high frame rate, digital reading out circuit technology, improve the amount of data obtained

 (3) improve process maturity, improve the production rate of detectors, reduce the production cost of thermal imaging detectors, conducive to the promotion and application of thermal imaging cameras

 (4) small size, low power and optical integration detector, to modular, plug-in development.


Conclusion

At present, the field of infrared thermal imaging is an important branch of the security video surveillance system, the industry's key enterprises are involved. In the course of this fight against the epidemic, the crowded areas of several cities, including airports, subways, railway stations, etc., have applied the "infrared thermal imaging temperature testsystem." Industry focus on infrared thermal imaging enterprises, including Dali Technology, Guide infrared, rapid response to the Ministry of Industry and Information Technology called for supply to the epidemic area, support the front line of the epidemic area. In addition, many infrared manufacturers, security enterprises, AI enterprises, Internet companies are almost all in the introduction of their own temperature measurement products, to help pneumonia resistance war. It is believed that infrared thermal imaging technology will shine in more civilian applications in the future.


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