WATCHING SYSTEM WATCHING DETECTION DEVICE AND WATCHING NOTIFICATION DEVICE

摘要

The watching system includes a watch detection device having a cartilage conduction vibration source, a mastication sensor, and a bone conduction microphone and mounted on the ear with the entrance of the external ear canal being opened, and a watch detection signal from the mastication sensor and the bone conduction micros And a mobile phone or an in-residence monitor unit for notifying the outside. The watching detection device has an external airway microphone and also functions as a hearing aid. And informs the outside when it can not receive the detection signal for a predetermined time from the masticating sensor or the bone conduction mic. The mobile phone and the monitor in the residence cross-check the detection information. It also notifies the mobile phone of the information without any abnormality. The voice signal from the bone conduction microphone is notified only to the outside, and the contents of the voice signal are not informed, thereby protecting the privacy. The screaming, the rescue request, and the urgent voice signal are exceptionally notified of the upbringing.