On January 19th, a 4.8-magnitude earthquake occurred at the junction of Anqing City and Huaining County. The source depth is 9.0 kilometers. Anhui's Hefei, Ma'anshan, and other earthquakes were noticeable. Many subsequent aftershocks occurred consecutively. However, there are no reports of casualties. 2800 houses in Yixiu District of Anqing City were damaged, among which 1500 were dangerous and 17 were collapsed.
In the earthquake rescue, the life detector is one of the frequently used equipment. The life detector is based on the principles of physics such as electromagnetic waves, sound waves, and light waves, and converts physical signals into electrical signals through a dedicated sensor, and then filters and amplifies and outputs visible or audible signals. These sensors can search, detect, and search for life. equipment.
We generally classify life detectors into audio, video, and radar. The latest "Urban Fire Station Construction Standards" is based on this classification. The first two are special stations and the latter is optional. This is mainly classified by sensor type. Audio life detector (including sound waves, shock waves) 2. Video life detector (including optics, fiber optics, infrared) 3. Radar life detector (including imaging, non-imaging) 4. Gas sensitive life detector (such as carbon dioxide detector) 5. Other types of life detectors (such as magnetic field form); if classified by detection function, they can be divided into direct life detectors and indirect life detectors; classified as active life detectors and passive life detectors according to detection methods; Divided into land exploration, underwater detection of life detectors.
At present, on the market, quotes about life detectors are varied, with tens of thousands, hundreds of thousands, and even millions, making people dazzled. So far, life detectors do not have national standards or industry standards, and there are no uniform regulations on names, model specifications, and there are no authoritative certification tests for product comprehensive performance. Policy loopholes may not only lead to chaos in the life detector market, but also fail to control product quality. In actual rescue, it is difficult to achieve the expected rescue target and affect the progress and results of the rescue.
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