Main uses of human body sensor

　　In nature, substances above absolute zero (- 273.15 ℃) can produce infrared rays. The infrared central wavelength of human radiation is 9~10 μ m. The pyroelectric infrared sensor can receive this part of the infrared signal emitted by the human body, and then convert the signal into a voltage signal to judge whether anyone passes by, and then transmit the detected information to the gateway through the module to link the intelligent scene.

　　Human proximity sensors and human activity monitors are widely used in bank ATM trigger monitoring video, aviation, aerospace technology, safe and industrial production.

　　In daily life, such as hotels, restaurants, garage automatic doors, automatic hot air fans have applications. In terms of security and anti-theft, such as data files, accounting, finance, museums, vaults and other important places, anti-theft devices consisting of various proximity switches are usually installed. In measurement technology, such as measurement of length and position; In the control technology, such as the measurement and control of displacement, velocity and acceleration, a large number of proximity switches are also used.

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