Dali Bai Autonomous Prefecture in Yunnan Province, fire brigade, there is a Leida Sheng life detector search and rescue officers and men called "Artifact," which sense of smell, can penetrate the ruins, looking for life long-distance signal, accurate positioning beings, it is "hunting Sniff.

"Hunting and sniffing" combines micro-power ultra-wideband radar technology and biomedical engineering technology, effectively utilizing the time-domain Doppler effect of human motion on radar echoes, and analyzing and judging the existence of living entities in the ruins through magnetic effects. Possibility and location of living organisms. In addition, "sniffer" radar life detector can effectively overcome the inherent technical defects of audio, optical, infrared and other life detectors, can penetrate non-metallic media (clothes, brick walls, ruins, floor, other coverings, etc.) In the absence of any electrode or sensor contact with the living body, life signals (breathing, heartbeat, body movement) of the living body can be detected at a longer distance, and the distance and position information of the buried living body can be accurately measured. In general, the disaster site is always full of strong noise. Under such circumstances, “sniffing” can still maintain “calm” and help rescue workers to carry out rescue operations quickly, efficiently and effectively, and determine whether there are survivors in the rubble. , and accurately locate the survivors.

According to the relevant person in charge of the Dali detachment, “hunting sniffing” can greatly reduce the blindness of rescue work, improve the efficiency of rescue, and have important value for maximizing the life safety of the people.

Although the detector head is small, it has the supporting function of a remote expert analysis system, and a remote expert support center is established to utilize the cloud service super processing platform to provide data analysis service functions. According to reports, various professional assistances such as "global positioning, two-dimensional imaging, and multi-basis networking" are also examples of "hunting sniffing" functions and high technologies. It is a high-tech life-saving equipment developed from the combination of micro-power ultra-wideband radar technology and biomedical engineering technology. It is professionally used in emergency rescue missions such as earthquake rescue disasters and landslide accidents.

According to reports, "hunting sniffing" has five major advantages.

One is high penetration. " Hunting and sniffer" radar life detector is highly penetrating. It is the only detection device in the global product with the ability to detect cardiopulmonary motion in fully static human body within an 8-meter physical ruin. “Hunting and sniffer” radar life detectors have a very high scientific and technological content, especially in terms of medium penetration, which requires comprehensive optimization of radar transmitters, receivers, and back-end processing algorithms.

The second is high professional support. "Hunting and sniffing" professional support is excellent, is currently the world's only product with global positioning, two-dimensional imaging, multi-base networking, remote expert support cloud service platform and other functions of the detector equipment.

The third is real-time performance. It is the only domestic detector that has the ability to detect real-time motion display. At present, only the "hunting sniffing" of domestic products adopts the equivalent sampling technology system, and it will be specifically expressed as a global goal in terms of real-time performance.

The fourth is high distance resolution. It is the only detector device in the domestic product that truly has the resolution capability of centimeter level resolution. At present, only the “hunting sniffing” method in domestic products adopts the equivalent sampling technology system, and it is possible to achieve accurate positioning of the target in the global range, especially centimeter level, in terms of distance resolution.

Fifth, good environmental adaptability. The "sniffing" environment is extremely adaptable. It is the only detector device in the world that has a variety of media compensation capabilities. It has media type selection and media compensation.

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