Auto alarm system design
Helen Li
SMQT
2016-07-14 16:09:34
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, multi-function, safety, intelligence and so on. On the other hand, the rapid developments of electronics and communication technology have provided the chance to excogitate the intelligent houses.
A kind of easy to use, reliable intelligent safe-proof alarm system for residential area is introduced. It has the functions of theft-proof and fire-proof, performing automatic detection and sound-light alarm. The Wireless Infrared sensor and Door-magnetism combine are used for theft-proof so as to realize automatic detection. Temperature sensor and pyroelectric infrared sensor are integrated to a compound detector for fireproof. Multi-sensors make the least false alarm and enhance the reliability of system.
When the sensors detect any off normal signal, it can use LED and speaker to alarm, so it is the result of the alarm system. Then an interrupt request is sent to the MCU. And the system adopt wireless mode for transmission alarm signal from the sensors to MCU so as to free the user from the tiring work of distribute wire. When use this system, the users have to lay the sensors in the detecting area and lay MCU in indefectible area, then set the sensor’s address and data bits. This system is particularly easy to expand and reliable. The system is designed by considering the anti-interference in the side of the hardware and software. It can work with high reliability.
