In the face of major disasters, how to quickly and accurately find the vital signs buried in rubble, concrete, and other rubble, to maximize the salvation of the lives of the affected people has always been one of the technical problems in disaster relief work.
At the Second Hunan University Postgraduate Electronic Design Contest recently held, the “Life Light” team, led by instructor Peng Bo of the Department of Intellience Sensitivity of the School of Electronic Science and Technology of the National University of Defense Technology, and Liu Zihao, the student, independently developed the “micro-motion radar”. Life Detector', won the contest's only special prize.
This award-winning 'Micro-motion Radar Life Detector' uses a micro-motion modal analysis technology based on deep neural network to realize vital heartbeat, respiratory characteristics analysis and recognition on the basis of life detection, and effectively Differentiating from other animals to achieve accurate rescue and improve disaster relief efficiency.
Life detectors convert signals that represent life information such as heartbeat, pulse, and breathing into other energy forms for display, such as sound waves, electric waves, infrared radiation, etc. In the mountain collapse accident in Maoxian County, Sichuan Province in 2017, the armed police forces and other search and rescue teams , Using life detectors, CO2 detectors, Snake-eye detectors, UAV-borne laser radar and other professional rescue equipment to search for and rescue trapped people, to know the situation at the first time, scientifically formulate rescue plans, and to maximize the rescue of trapped The lives of people.
With the progress of society and the development of science and technology, all countries have begun to pay attention to the development of advanced rescue technologies and equipment. Since the last century, the United States, Germany, and Japan have taken the lead in the development of life detectors. Existing life detection equipment mainly includes video life. Detector, infrared life detector, gas-sensing life detector, ultra-low frequency electromagnetic life detector, radar wave life detector, etc., and widely used in various types of search and rescue work.
China is an earthquake-prone and frequent disaster-prone country, effectively locating trapped people in the 'Golden 72 Hours' after the earthquake, and implementing accurate rescue is the core of improving rescue effectiveness. However, the current life detector on the market is still difficult to efficiently complete this. A task. After the miniaturization and integration, the “micro-motion radar life detector” can play an important role in the application scenes such as earthquake rescue that need to quickly detect and locate human targets.
With the continuous improvement of the scientific research level, there will be more advanced life detection technology available, and the existing life detection technology will also be improved and applied and developed in more fields.
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