An Anti-Burglary System Using Laser Scanning Technology

• Main Authors: KUAN LUN CHEN, 陳冠綸
• Other Authors: freemanchen
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/44435232140325545688

碩士 === 國立臺灣科技大學 === 光電工程研究所 === 98 === We develop a laser scanning anti-burglary system to overcome the shortcomings of the anti-burglary system, such as visible CCD camera systems, infrared systems, ultrasonic systems and laser pointing systems. This system has the following advantages. (1) There is no hidden detection region in a closed space. (2)The system can function in darkness. (3)The system can detect intruders having environmental temperature. (4) The system have ultra-high resolution to detect tiny intruders. (5) Intruders can not evade from the system. In this paper, we build a laser scanning anti-burglary system by using a semiconductor laser, a MEMS mirror, photo-detectors, a room covered by mirrors, and logic circuits. Signals of all detectors are collected, recorded and compared from time to time. As intruder entering the room, signals of detectors will be varied, and we can judge the room is invaded.