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Registered SECURITY SYSTEM AND METHOD USING MEASUREMENT OF SOUND FIELD VARIATION
- Inventors
- Lee Sung Q, Lee Hongyeol, Hye Jin Kim, Kang-Ho Park, Kim Jongdae
- Application No.
- 12878414 (2010.09.09)
- Publication No.
- 20110141283 (2011.06.16)
- Registration No.
- 8797407 (2014.08.05)
- Country
- UNITED STATES
- Project Code
- 09MB1500, Components/Module Technology for Ubiquitous Terminals, Kim Jongdae
- Abstract
- A security system and a method of determining whether there is an intrusion are provided. A correlation between sound signals obtained from a sound source generating device and a sound-field variation measuring device is used to measure a acoustic field in a certain space. A difference between an initially set acoustic field and a changed acoustic field is used to determine whether there is an intruding object in a certain space. The security system includes a sound source generating device for generating a sound source; and a sound-field variation measuring device for measuring a acoustic field formed by the sound source, wherein an initially set acoustic field is compared with the measured acoustic field to determine whether there is an intrusion.