| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a crime prevention device capable of exactly determining whether or not an intrusion act in a room is performed by an illegal means to eliminate erroneous alarm. <P>SOLUTION: The crime prevention device is equipped with an impact detection means 13 for detecting an impact, a sound pressure detection means 16 for detecting sound pressure, an abnormality degree determination means 17c for determining a degree of abnormality based on a level of an impact detection signal detected by the impact detection means 13 and a level of a sound pressure detection signal detected by the sound pressure detection means 16 and an alarm processing means 17d for performing predetermined alarm processing based on determination results of the degree of abnormality by the abnormality degree determination means 17c. <P>COPYRIGHT: (C)2007,JPO&INPIT |
