| 摘要 |
According to an embodiment, a composite intrusion detection sensor includes a microwave sensor that transmits microwaves toward a detection area and based on reflected waves of the microwaves from an object present in the detection area detects and outputs distance information about a distance to the object and first distance change information about a distance change within a predetermined time interval; an image sensor that captures images within the detection area, and based on changes between images captured in a time series, detects and outputs on-image movement amount information, which represents the amount of movement of the detected object in the images within the predetermined time interval; and a computation means for judging, based on the distance information, the first distance change information, and the on-image movement amount information whether or not the object is an intruder.
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