Domestic new life detectors come out

In the face of earthquakes, mudslides, and other disasters, the buried life signals are quickly and accurately searched for. The first time to save lives is one of the technical difficulties in disaster relief work in all countries of the world. On July 21st, the "Ultra Wideband Radar Life Detector for Police Use" jointly developed by Hunan Public Security Fire Corps and Hunan Huanuo Star Electronic Technology Co., Ltd. was certified by scientific and technological achievements in Changsha City. Experts such as He Jishan, an academician of the Chinese Academy of Engineering, who presided over the appraisal, believe that the results are good, the maximum life detection range is up to 20 meters, and the technology is at the leading domestic level.

In recent years, geological disasters such as earthquakes and mudslides have occurred frequently in China. Many people buried deep in rubble and concrete have lost valuable opportunities for survival because they cannot be accurately and timely discovered by rescue workers. In order to effectively break through this technical difficulty, in early 2009, the Fire Bureau of the Ministry of Public Security formally issued the “Ultra-Wide Ultra Radar Radar Life Detector” key scientific research project, supported by the Hunan Public Security Fire Corps, from Hunan Huanuo Star Electronics. Technology Co., Ltd. organizes technical forces for research and development.

It is understood that the results of the use of the new system of ultra-wideband radar technology, has overcome the high stability of the nanosecond pulse source, waveform fidelity ultra-wideband pulse time domain transceiver antenna, ultra-wideband pulse time domain velocity scan, synthesis imaging algorithm, radio frequency suppression With a strong anti-noise algorithm and a series of key technologies. Utilizing the strong penetrability and high resolution of ultra-wideband pulsed electromagnetic waves, we have proposed weak signal detection algorithms for human heart and lung movement in complex environments to achieve high-risk areas such as fires, building ruins, and earthquake relief. The rapid and effective detection and localization of living organisms in the background of noise. After testing, the "Ultraviolet Ultra-Wideband Radar Life Detector" can effectively detect human body movement, heartbeat, breathing and other activities in a range of 20 meters, providing reliable data for the rapid search of trapped people's lives.

This year, the equipment successfully passed the seismic simulation test of the National Seismological Bureau. Later, in the Yushu earthquake rescue mission, rescue workers successfully detected the equipment and rescued many people.

Compared with vehicle urea dissolution detection equipment commonly used in China, such as ICP spectrometers, the urea solution for vehicle detection has many advantages such as low cost, portability, and rapid detection. The error rate is only 1%, making it ideal for automotive applications. The on-the-spot inspections of large-scale users such as manufacturers and bus companies when using vehicle urea solutions have also filled a gap in the domestic rapid detection equipment.