Research And Implementation Of Wireless Security Alarm System Based On GPRS

Now,all kinds of alarm transmission mostly rely on cable(such as through telephone lines,cable),with its flexibitity and reliability are some restrictions on long-distance transmission line maintenance costs.And telephone lines are vulnerabte to lawless etements of the attack and destruction,resutting in detayed alarm and greater losses.Traditional wireless alarm system(such as microwave,VHF,UHF,etc.) has been warning frequency band resource constraints,as well as the installation of various equipment framework,also found the high cost of installation and maintenance,access to the high threshold.With the development of Chinese mobile network and the mature and widely application of mobile phone users,GSM network covers a wide range of seamless access to INTERNET simple.Its debug technotogy is relatively low threshold,and there are the promotion and development of China Mobile, China Unicom and other telecommunications operators.At present,many manufacturers have devetoped a module with GPRS function,and its wide range of applications for GPRS technotogy in security and other fields of application have injected new vitality.Therefore,the subject of GPRS-based wireless security alarm system, there is greater prospects for the development and application of significance.Compared to cabte and cable alarm transmission methods, based on the GPRS wireless security alarm system has a higher security, flexibility,free network set up and maintenance costs.At the same time, based on the maturity of China Mobile's network,is also a reliable guarantee for stability.Such a system can meet all kinds of lines in the city of protection, as well as failure of the alarm when disconnected,such as requirements,but also in peacetime operation and maintenance costs are relatively low.The system makes full use of the existing wired alarm HONEYWELL host at the scene collecting various types of signals,including a variety of devices running the state of information,environmentat information,alarm information,etc.,It reatizes the expansion of existing wired alarm system.At the same time,it may atso give direct access to potice information collection equipment,such as vibration sensors,temperature sensors,infrared sensors and so on.Wireless security alarm module collects a variety of danger signals with single-chip,and transmittes wirelessty directly to the INTERNET network by GPRS modute,and then the Control Center software platform is responsible for showing dangerous and alarm information.Monitoring Center stores many customer informations of wireless alarm storage terminats.It is responsibte for monitoring the number of wireless terminals,receives the alarm information sent by wireless alarm terminal, timely notice of monitoring persons to deal with dangerous situations.At the same time,the Center has the features of disptay,anatysis,statistics,save, print,inquire information such as historical records and so on so that monitoring persons can inquiry information.The system has good technology,application flexibility,installation convenience and low cost of maintenance costs.It makes futt use of GPRS services,fast performance and relatively low fees.It can be set in large-scale long-range coverage,to meet the reliability,real-time performance and maintenance requirements,such as convenience,stable performance, cost-effective.