| 摘要 |
<p>Provided is a motion detection device that can reliably detect the motion of an object to be detected. The motion detection device comprises: a substrate having, on the surface thereof, a plurality of pyroelectric elements arranged so as to be spaced from one another, each pyroelectric element detecting infrared light emitted from an object; a detection circuit that converts the input signal from each said pyroelectric element into a voltage signal and outputs same; and a determination means that determines whether or not there is a motion of the object in a detection region, which is set within a predetermined detection distance from each said pyroelectric element, by comparing the output signal of the detection circuit with a reference value set in advance. The output signal of the detection circuit is configured so as to be flat in a frequency band that has been set. The motion detection device further comprises a movement information calculating means that calculates movement information including information related to the distance to the object, which has been determined by the determination means, and the direction of movement of the object.</p> |
