Study and Realization of an Alarm System by Coded Laser Barrier Analyzed by the Wavelet Transform
Subject Areas : Signal Processingmeriane brahim 1 , Salah Rahmouni 2 , Issam Tifouti 3
1 - University of Batna 2 (UB2). Algeria, Advanced Electronics Laboratory
2 - Higher School of Technological Education Skikda ENSET. Laboratory (LPCBM) Algeria.
3 - Higher School of Technological Education Skikda ENSET. Laboratory (LPCBM) Algeria.
Keywords: wavelet transform, Lasers Sources, Radio frequency, Laser Coded Barriers, Alarm System,
Abstract :
This article introduces the study and realization of the laser barrier alarm system, after the laser is obtained by an electronic card, the wireless control system is connected to the control room to announce the application in real time, and the laser is used in many applications fields, from industry to medicine, in this article on the basis of Industrial applications such as laser barrier. It uses an alarm system to detect and deter intruders. Basic security includes protecting the perimeter of a military base or a safety distance in unsafe locations or near a government location. The first stage secures surrounding access points such as doors and windows; The second stage consists of internal detection with motion detectors that monitor movements, In this article, we adopt the embodiment of a coded laser barrier that is transmitted between two units, processes the signal, compares the agreed conditions, and to be high accuracy, we suggest using wavelet transmission to process the received signal and find out the frequencies that achieve alarm activation considering that the transmitted signal They are pulses, but after analysis with a proposed algorithm, we can separate the unwanted frequencies generated by the differential vibrations in order to arrive at a practically efficient system.
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