UBox App DocumentationPIR Human Detection and False Alarms
Learn how to use PIR human detection function and why there might be alarms when no one is present.
How to use PIR human detection function, why is there alarm when there is no one?
PIR is a far-release infrared sensor, which is based on the human body's far-release infrared to determine whether people are active. There are other objects in nature that have the same wavelength of infrared, such as sunlight, mammals, and cars and heat sources.
Serious electromagnetic interference can also cause false triggers to the equipment. The interference of the PIR sensor can be reduced by the following means:
Reduce PIR Sensor Interference
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Avoid direct sunlight: Try to avoid direct sunlight, solar cameras and other outdoor products. Radar technology has been added, therefore, there is no need to avoid direct sunlight.
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Adjust sensitivity in crowded areas: Where there are more people, it is recommended to turn off the PIR or turn down the sensitivity to reduce false alarms.
For more information about device setup, see How to Add WiFi Device.