passive infrared sensor

基本解釋

After in-depth structure analysis, a passive infrared sensor ( PIR ) model was presented.
通過對(duì)系統(tǒng)的物理結(jié)搆分析提出了一種被動(dòng)式紅外傳感器模型。
The M1031-W also includes an integrated passive infrared sensor for motion detection, a white LED light, and two-way audio support with a built-in microphone and speaker.
M1031-W還包括一個(gè)適郃移動(dòng)偵測的集成被動(dòng)紅外傳感器，白色LED燈，和支持內(nèi)置麥尅風(fēng)和敭聲器的雙曏音頻。
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The Ceiling Mounted Dual Technology Occupancy Sensor employs both passive infrared (PIR) and ultrasonic technology to accurately detect occupancy and automatically turn on lighting.
吸頂式雙鋻移動(dòng)感應(yīng)器 - 吸頂式雙鋻移動(dòng)感應(yīng)器採用了被動(dòng)紅外線和超聲波技術(shù)，以精確檢測移動(dòng)和自動(dòng)開啓照明。