Active scanning pyroelectric infrared induction switch
The utility model discloses a pyroelectric infrared induction switch with an active scanning function. The device comprises a pyroelectric infrared sensor, an infrared chopping modulation device is arranged in front of the pyroelectric infrared sensor; wherein the infrared chopping modulation device...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model discloses a pyroelectric infrared induction switch with an active scanning function. The device comprises a pyroelectric infrared sensor, an infrared chopping modulation device is arranged in front of the pyroelectric infrared sensor; wherein the infrared chopping modulation device is provided with a plurality of windows, the infrared chopping modulation device is connected withthe driving mechanism, the pyroelectric infrared sensors correspond to the windows, the pyroelectric infrared sensors send signals to the driving mechanism after sensing infrared signals through the windows, and the driving mechanism drives the infrared chopping modulation device to move. An infrared chopping modulation device is arranged in front of the pyroelectric infrared sensor; when the pyroelectric infrared sensor senses an infrared signal, the pyroelectric infrared sensor emits an infrared signal. When the pyroelectric infrared sensor senses a human body, the infrared chopping modulation device begins to move, |
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