| 摘要 |
In one embodiment of a microwave sensor, when a "low" plants countermeasure is conducted, if an alert has been generated 5 times or more within 1 minute, an object decision move distance is changed to be longer and a "high" plants countermeasure is conducted. Subsequently, when assuming that the plants countermeasure is "low", only if the alert is not generated within 10 minutes, the plants countermeasure is returned to "low". Further, if the alert is not generated within 10 minutes in the status,of the "low" plants countermeasure, the plants countermeasure is canceled.
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