| 摘要 |
PURPOSE: A premise wireless remote monitoring device having a multi-tone warning sound is provided to solve the problem of a jamming and an obstacle, using a sound wave with an audible frequency band, and accurately receive a sensing signal. CONSTITUTION: A plurality of monitors(10) are separately installed in premise monitoring objects, for transmitting signals according to states of the premise monitoring objects, as multi-tones having inter-different frequencies with an audible frequency band. A situation processor(20) receives a state signal with the audible frequency band, which is transmitted from the monitors(10), analyzes the frequency of the state signal, and judges a current state of the monitoring object. The situation processor(20) generates inter-different warning sounds or informs premise situation to an external security company, according to the judged result.
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