SYH24A1 24G Millimeter Wave Radar
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When the module starts to work when it is initially powered on, it is necessary
to completely reset the internal circuit of the module and fully evaluate the
environmental noise to ensure the normal operation of the module. The module
initialization time is about 30 seconds, and the validity and accuracy of
subsequent output parameters can be guaranteed after the initialization is
completed.
In extreme cases, some users have high electromagnetic noise in the use
environment, which can easily cause misjudgment of the status. In the case of
the current harsh environment, the internal algorithm of the module supports
the learning and adaptation of the existing environment characteristics in an
unmanned scenario to reduce the misjudgment caused by the module detection
in a harsh environment. The learning process needs to be powered on in an
unmanned environment. Run for about 2 hours.
(2) Judgment time
Within the radar detection range, the detection and feedback time when the
object is moving is within 1 second, and the data is output synchronously.
Because of the algorithm's superimposed calibration, the radar needs to collect
data in multiple dimensions and improve the accuracy when detecting the
stationary human body or the unmanned state evaluation to ensure the
reliability of the radar output state. The radar output evaluation time is
currently set to 10 minutes, and the response time can be further optimized
according to user scenarios in the later stage.
(3) Environmental factors
For the measurement of moving objects or moving human bodies, it is
necessary to prevent interference from other continuously moving objects in
the environment. This radar has already processed and filtered the data for
long-distance moving objects in algorithm, but if there are other moving objects
in the short-range monitoring range, interference data may be uploaded to the
module to cause incorrect data judgment. In actual use, in order to ensure the
accuracy and stability of the output data of the radar module, objects that may
cause interference should be avoided from entering the detection range, such
as household fans, automatic toys, and fish tanks with fish activities.
(4) Effective detection distance
Radar effective detection distance is related to the motion amplitude and
distance. The larger the object's motion amplitude, the farther the detection
distance is. The detection distance of human motion data is within 20, and the
detection distance of human respiratory data is within 5 meters.
(5) Penetrability
