تصميم نظام لكشف الحركة

Abstract

The huge capering technology that was happens in twenty century which coverage most life sides especially in safety and security system field so they developed very quickly from using the primary devices to developed ones.

In this is project electronic mechanism was used to detect motion in interrogation zone by using electronic circuit which contains transmitting antenna and another one for receiving the ultrasonic waves. The transmitting antenna send ultrasonic waves to the interrogation zone (which motion detection need on it) if interrogation zone was contain object moving that will cause reflection back of some of the transmitted ultrasonic waves to the receiving antenna which transmitted an electrical signal to the personal computer devise via parallel port. After that the personal computer program tests if there is an electrical signal or not in parallel port by using a program written by c language. If there is an electrical signal it will send a control word via parallel port to activate the devices connected to the parallel port (Lamp, Buzzer device).