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The module for detecting slight movements is highly sensitive to installation
methods. Improper installation can result in electromagnetic waves emitted by the module
being unable to or unreasonably illuminating the target to be detected, which directly
affects its performance and function and may even cause abnormal operation (false
reporting or missed detection). Therefore, a reasonable installation method plays a
crucial role in the normal use of the module.
Ceiling-Mounted Installation
1.4.1
Attention needs to be paid to ceiling-mounted installation concerning objects within
the module's detection range such as "air conditioning", "curtains", "fans", or "indoor
plants". If their oscillation frequencies fall within the range of breathing frequencies,
they may cause false alarms from the module.
It is also important to take into account the occurrence of multipath reflections
similar to specular reflections when the beam is projected onto the ground or walls, or
when it passes through doors, indirectly detecting the above-mentioned obstructions.
Proper parameter configuration, such as sensitivity and distance filtering, can help to
decrease some of the interference.
Installation at an oblique angle downwards or parallel forwards
1.4.2
4
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