红外对射报警系统的设计与实现

Design and Implementation of the Active Infrared Intrusion Alarm System

对现有市场智能家居安防产品的性能和价格等进行了调查,发现该类产品电路复杂且价格普遍较高,使得其难以得到广泛应用,为此提出了一种红外对射报警系统。该系统采用STC89C52为控制器,SIM900A为通信模块,预留扩展接口,可接入可燃气体传感器等各类信号。户外红外对射部分采用清洁无污染的太阳能供电,通过无线有线转发器与主控制器连接,用于监控防区是否有侵入者,如发现异常可通过通信模块向预设手机发送短信或拨打电话,同时发出声光报警,确保报警信息及时传送。对通信模块、传感器信号等进行系列调试。调试结果表明,该系统能够实时检测防区内不安全因素,实现远程自动报警功能,设防区域大、稳定可靠,为今后智能家居领域报警系统简单化、智能化、平民化研制提供了参考和依据。

The performance and price of smart home security products in the market are investigated, it is found that the circuitry of the products is complex,and the cost is generally high; so the products are hard to be popularized. The active infrared intrusion alarm system is proposed. In this system,STC89C52 is used as the controller,SIM900A is used as the communication module; with reserved expansion interface,it can be connected with the combustible gas sensor and other signals. The outdoor infrared radiation part is powered by clean and pollution - free solar energy, it is connected with the main controller through wired and wireless repeater,for monitoring if these is any intruder. If abnormal situation is found,short message or phone call can be sent to pre - set mobile phone through communication module, in addition, audio and visual alarm messages can be issued promptly. The communication module, Sensor signal, etc. are carried out a series of experiments. The debugging results indicate that the system can detect unsafe factors of the region in real time, realize the function of remote automatic alarm stably and reliably, the secured area is wide. It provides reference and basis for simplification, intellectualization, and civilization development of smart home alarm system in the future.