| 摘要 |
PROBLEM TO BE SOLVED: To provide a warning system for achieving the mislaying measure and crime prevention measure of an information equipment terminal during its transportation.SOLUTION: In a warning system, a first slave unit transmits a periodic signal, and a second salve unit receives the periodic signal transmitted from the first slave unit, and when the strength of the periodic signal is less than a preliminarily set signal threshold, the second salve unit generates a warning sound, and transmits a warning signal, and when receiving the warning signal transmitted from the second slave unit, a master unit specifies an information equipment terminal to which the first salve unit is attached, and specifies the location of the information equipment terminal. |
