Datasheet

MR24BSD1)
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14!
• Alarm automatic communication with emergency contacts
applications
7. Notes
7.1. start-up time
As the module requires a complete reset of the module's internal circuitry
and a full assessment of the environmental noise when the module initially
powers up and starts to operate, it is necessary to ensure that the module
works properly. Therefore the module needs a power-on stabilisation time
of ≥ 30s at initial power-up operation to ensure the validity of the
subsequent output parameters.
7.2. effective detection distance
The detection distance of the radar module is highly dependent on the
target RCS and environmental factors, and the effective detection distance
may change as the environment and the target change.
7.3 Radar biodetection performance
As human biometric features are ultra-low frequency, weakly reflective
signals, radar processing requires a relatively long period of cumulative
processing, and many factors may affect the radar parameters during the
cumulative process, so occasional detection failures are normal.
7.4. power supply
Radar modules require higher quality power supplies than conventional
low frequency circuits.
When supplying power to the module, the power supply must be free of
threshold burr or ripple and effectively shielded from power supply noise
caused by accessory equipment.
The radar module needs to be well grounded, as ground noise from other
circuits can also cause degraded performance or even abnormal operation
of the radar module; most commonly resulting in reduced detection range
or increased false alarms.