| 摘要 |
PROBLEM TO BE SOLVED: To operate a security system by minimum manual operation. SOLUTION: A sighting device position acquisition means 1b acquires a sighting device position. A sighting device driving means 1c drives an infrared sighting device 1a to adjust a sighting device position. A sighting device position comparison means 1d compares a sighting device position on completion with a sighting device position given when a light receiver 2 becomes impossible of receiving infrared beams. A received light sensitiveness determination means 2b determines received light sensitiveness of an infrared receiver 2a. A receiver position acquisition means 2c acquires a receiver position. A receiver driving means 2d drives the infrared receiver 2a according to the received light sensitiveness for adjusting the receiver position. A positional information storage means 2e stores a receiver position on completion and a sighting device position on completion. A receiver position comparison means 2f compares the receiver position on completion and a receiver position given when the infrared receiver becomes impossible of receiving infrared beams. When the infrared receiver 2a becomes impossible of receiving infrared beams, a notification means 2h notifies the fact to the outside. COPYRIGHT: (C)2007,JPO&INPIT
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