Abstract
With the rapid development of modernization and great improvement of people's living, the need of house has been changed from only the living space to multiform needs of high-quality, mufti-function safety, intelligence and so on. On the other hand, With the dramatic development of VLSI(very large-scale integrated circuit),the
telecommunication technology and MCU (micro-control unit) it is possible to set alarm automatically by micro-controller and other chips, which becomes a kind of trend. Because it is small and convenient to install and the ratio of performance and cost is high, it will have a bright future.
A kind of easy to use, reliable intelligent safe-proof alarm system for residential area is introduced .It has the functions of theft-proof. The Infrared sensor and Vibration sensor combined are used for theft-proof so as to realize automatic detection. Multi-sensors make the least false alarm and enhance the reliability of system. When the sensors detect any off normal signal, an interrupt request is sent to the MCU. Immediately the MCU control the circuit to alarm.
This dissertation describes the design of hardware and software of the alarm in
detail, in which selecting suitable chips, periphery circuit, chips interface, and the
methodology of program are discussed .More over, the key program is described.