| 摘要 |
PROBLEM TO BE SOLVED: To provide a normal time step, emergency time step, and mode switching step, and to forcedly attain the switching of a normal mode and an emergency mode by operating the mode switching step at the time of receiving a common ID and an emergency signal. SOLUTION: In a normal mode, an antenna 101 always catches reception radio waves, and at the time of receiving a certain ID, a CPU 104 judges whether or not the ID is its own ID, and when the ID is its own ID, an announcing means 110 is operated, and simultaneously the display of a message is operated. When the received ID is a common ID, the message is confirmed, and when the message is a prescribed message, a disaster mode is obtained, and announcement with the maximum volume from a speaker and the display of the message is operated. At the time of setting announcement in non-emergency, one or more announcement of single sound speaker announcement, step-by-step tone speaker announcement, vibrator vibration announcement, or silent announcement (only for blinking display) or the like is selected.
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