Design of Intelligent Security System Based on ARM Microcontroller

An intelligent security system based on ARM microcontroller was developed. The system can realize the monitoring of the intrusion signals automatically by using pyroelectric infrared detectors, alarming through the Ethernet, and displaying the invasion information on the PC screen. In order to monitor alarm signals, the PC server is in the state of listening when there is no information arrived, and otherwise display the alarm time and the room number, making the speaker speak to notice the security staff. And then, the reset button could not only stop the speaker´s speaking but also stop the ARM microcontroller to continue monitoring invasion signals. The software with a logging feature could record the alarm information and delete it artificially.