What principles does the Xiaomi Smart Doorbell 3S use for infrared detection?
The Xiaomi Smart Doorbell 3S is equipped with a PIR sensor, which can detect the infrared radiation emitted by a human body or other objects within the monitoring range. This allows the doorbell to promptly detect the presence of individuals in front of the door and react accordingly.
Note:
Infrared detection is greatly affected by temperature. In winter, spring, and autumn, when there is a significant temperature difference between the human body and the environment, the triggering distance is longer. In summer, when the temperature difference is smaller, the triggering distance is shorter.
Note:
Infrared detection is greatly affected by temperature. In winter, spring, and autumn, when there is a significant temperature difference between the human body and the environment, the triggering distance is longer. In summer, when the temperature difference is smaller, the triggering distance is shorter.
Does it help?
Yes
No