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The present invention provides a feature that manages security while maintaining the privacy of a user. The present invention is provided with an object detection unit for detecting the state of an object in a target booth, an abnormality determination unit for comparing the detection result of the object with a prescribed state and determining abnormality on the basis of the comparison result, a photograph unit for photographing the inside of the target booth, and a video control unit for setting the resolution of a video signal outputted from the photograph unit on the basis of the result of the abnormality determination.