| 摘要 |
PROBLEM TO BE SOLVED: To provide a security system capable of providing complete security with respect to the security system of a house and a condominium housing. SOLUTION: The infrared ray is radiated to the circumference of the house from an edge of the eaves like a shower, a sensor of infrared ray is mounted to notify the approach of criminal persons to the house. The sensor is cut off on the basis of preliminary communication in a case of dwellers or acquaintance. COPYRIGHT: (C)2006,JPO&NCIPI
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