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Proceedings Paper

Laser security systems
Author(s): Ivan Stanchev Kolev; Ivelina Stefanova Stoeva
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Paper Abstract

This report presents the development of single-beam barrier laser security system. The system utilizes the near infrared (IR) range λ=(850÷900)nm. The security system consists of several blocks: Transmitter; Receiver; Logical Unit; Indication; Power Supply. There are four individually software programmable security zones Z1 ÷ Z4. The control logic is implemented on a PIC16F84 MCU. The infrared beam is a pulse pack, coded and modulated in the transmitter with frequency of 36 kHz. The receiver demodulates and decodes the beam. The software for the MCU is developed along with the electrical circuits of the security system.

Paper Details

Date Published: 21 June 2004
PDF: 8 pages
Proc. SPIE 5449, Eighth International Conference on Laser and Laser Information Technologies, (21 June 2004); doi: 10.1117/12.563122
Show Author Affiliations
Ivan Stanchev Kolev, Technical Univ. of Gabrovo (Bulgaria)
Ivelina Stefanova Stoeva, Technical Univ. of Gabrovo (Bulgaria)


Published in SPIE Proceedings Vol. 5449:
Eighth International Conference on Laser and Laser Information Technologies
Vladislav Ya. Panchenko; Nikola V. Sabotinov, Editor(s)

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