DETECTION DEVICE AND DETECTION CONTROL METHOD
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United States of America Patent
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Aug 8, 2017
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Aug 10, 2016
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Abstract
A detection device for use with a master device is provided. The detection device includes an electric power source that is intermittently driven to generate electric power, a detector switched between a number of states by occurrence of a predetermined event or a predetermined state, an electric power accumulator that is charged or discharged by switching the state of the detector, and a controller powered by the electric power source. The controller is configured to determine the state of the detector and notify the master device of detection information corresponding to the state of the detector. Activation of the controller powered by the electric power source is followed by acknowledgment of the state of the detector by the controller based on a state of the electric power accumulator.
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