A Brief Discussion on the Role of Life Detectors

　　 Life detector Contains life safety information. This life safety information is mainly presented in the external structures of the body (such as sound wave frequency, ultrasound, radio waves, light waves, etc.) according to various sensory methods.

　　The life detector is a life safety detection device developed based on radar detection technology and life science research technology. The life detector utilizes the basic principle of the reflection surface of radio waves, and based on the various micromovements of the human body's life activities, information about normal breathing and heart rate can be obtained from these micromovements, thus judging whether there is life safety. Radar detection is currently a worldwide life detector. In order to avoid damage from major factors such as temperature, environmental humidity, low-frequency noise, and construction site terrain, inspections have been conducted in advance, and electromagnetic detection data signals are continuously transmitted, improving the effect of regional detection.

　　1. Place Life detector the sensor box facing the rubble and retreat more than 6 meters, but only a 15-meter interval (the handheld PDA and sensor transmission interval cannot exceed 20 meters).

　　The wireless controller can be moved within 30 seconds to check for normal breathing, but if this time is extended, the degree of inspection will increase. It may also indicate the interval of the victim. After three minutes, the sensor can be moved to other points of the search square.

　　2. Individual sensors only provide the occurrence interval of the victim, not the exact location. Because the "viewpoint" of radar detection varies in width or narrowness depending on the construction site materials.

　　For example, the victim may be 2 meters away from the wireless antenna, but it is uncertain whether they are below. If the construction site material is wet sand, the victim may be vertically offset by 50 degrees from the correct position; if it is dry sand or concrete debris, the viewpoint is very wide.

　　3. We don't know when misfortune will strike, so daily training is particularly important. This allows operators to understand the use of the operating system. It is important that the operating system and laptop PDA batteries should always be kept charged.

　　In general, science and technology have expanded our vision and hearing. Depending on the environment and field, various Life detector have natural advantages. Able to withstand harsh conditions at rescue sites and find life in smoky, fiery, and dark environments after an earthquake. The infrared life detector detects the heat of the victim's body, and the optical system concentrates the received human body thermal radiation energy onto the infrared sensor, then converts it into an electrical signal. After processing, the infrared thermal image is displayed on the monitor, helping rescuers determine the location of the victims.

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