R Ildarabadi - Assistant Professor, Department of Electrical and Computer Engineering, Hakim Sabzevai University, Sabzevar, Khorasan Razavi, Iran
Z Kermat - MSc. Graduated, Department of Electrical and Computer Engineering, Hakim Sabzevai University, Sabzevar, Khorasan Razavi, Iran

In this paper presented implemented approach for protecting border of large departments, large agencies, large universities, and large companies that have a large yard with a kilometers erecting walls, based on infrared beam. This system is based on infrared beam communication. For implementing of this system it is used invention protocol transmission data by authors. The presented method don’t require to wiring for power supply. It is shown that cost of implementing this system is very low.

Infrared Beam, Security fence, Transmission Data, Optic Communication