A multi-protection, FPGA-based and VHDL programmed, object security and surveillance system, using PIR motion sensors, vibration sensor and touch-switches for activating a variety of alarm systems

Abstract: An object security, multi-protection and surveillance system, based on PIR motion sensors, vibration sensor and touch-switches, is presented here. The system uses FPGAs and can protect precious objects or industrial im- portance equipment, as well as laboratory and scientific instruments, against people who may cause damages or steal the above objects. It provides three main protection services. The first is by using its PIR sensors for detection of hu- man presence and second is by activating its vibration sensor, in order to prevent possible moving of the object. It uses two PIR motion sensors for more complete coverage of the area and if human presence is detected four different alarm systems are activated. FPGA board LEDs light up, vibrator starts sounding, a laser module also lights up and step mo- tor activates door closing equipment. Additionally if vibration sensor detects possible movement of the object, another FPGA board LED lights up. System administrator is aware of all the above activations, so he can decide whether to use the third protection ability, which is pressing one or more touch capacity switches, thus activating respective buzzer systems in different security service rooms. The system is programmed using VHDL language and can be implemented in a variety of security applications.

Keywords: Object security surveillance system, Sensors, FPGA, VHDL, Buzzer, LEDs, laser, vibrator, touch sensors, step motor.