DROWNING MONITORING DEVICE AND DROWNING MONITORING METHOD

摘要

This drowning monitoring device monitors, on the basis of whether a signal transmitted from a wireless tag is successfully received, whether a tag-wearing person, who is a person wearing the wireless tag, is drowning. For example, the drowning monitoring device determines whether a signal was successfully received by whether the signal was successfully decoded, and when the signal is successfully decoded, the drowning monitoring device determines the tag-wearing person is not drowning, and conversely when decoding the signal fails, determines whether the tag-wearing person is drowning on the basis of the submersion time of the wireless tag.