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As science and technology and rapid economic development, people's demand for housing from the simple to the functions of living space , security requirements , such as multiple transition . Therefore, an efficient , easy to use security alarm system , for people's daily life is very important. This article from the application point of view , with the current market situation, researched and designed a user-friendly and efficient security alarm system , the functions of the existing mainstream products made ??extensions and additions. The design of this set of anti-theft security alarm systems , fire protection functions, can automatically detect and send alarm information , the use of modular design , easy to expand. Detectors to achieve a variety of indoor analog signal ( human body emits infrared signals , temperature, concentration of harmful gases , smoke concentration, etc. ) automatic monitoring, when there is an alarm signal is generated when the alarm controller according to the type of alarm , the alarm via SMS or MMS information sent to the specified units and individuals to achieve the alarm function . System based on ARM and Linux platforms alarm controller , you can easily set up the system , arming and disarming , and other related operations. To make the system more cost-effective , more reliable, while able to meet the building's security, information collection and other needs, the system uses a simple and easy to implement , highly reliable RS-485 bus network to connect all devices. This design of security alarm system , low cost , high reliability, easy to popularize . Meanwhile , you can achieve remote alarm , mobile operators the area covered by the network , can receive the alarm message. Therefore, the system can be widely applied to various important places.
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