Importance

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Abstract

Biological signals detected by biological signal detecting units put on a plurality of persons to be monitored are transmitted to a plurality of wristwatches. The transmitted biological signals and ID code data corresponding to the biological signals are transmitted in the form of radio signals. A receiver unit receives the biological signals and the ID code data transmitted from the wristwatches and sends them to a monitor unit. The monitor unit displays the transmitted biological signals in a one-to-one correspondence with the ID code data, Upon detecting an abnormality in a given biological signal, the monitor unit generates an alarm sound. If a corresponding person to be monitored determines that the alarm sound is erroneously generated, he or she stops the alarm sound by manipulating a switch. If the person determines that the alarm sound is not a false alarm, his or her wristwatch transmits a contact designation signal and ID code data by a radio signal. On the basis of the contact designation signal and the ID code data, the receiver unit automatically activates an auto-dialing unit to inform the third person of the state of emergency.

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First Claim