Traditional intrusion security system technologies include vibration sensors, infrared radiation, passive infrared, electronic fences, video surveillance, thermal infrared, etc., and a single technical means will highlight its shortcomings in some aspects: Susceptible to bad weather, shelter, complex environment. At present,… долдугаар сар 21, 2023 Мэдээ долдугаар сар 3, 2023 Мэдээ
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