The Development Of Public Security Node Of Intelligent District

Intelligent district is outcome of Information ages.With our economic and living standard growing stably,residents, requirement of environment is becoming increasingly higer.They require their residential environments to be comfortabe,fragrant and safe,especially safty is their will and intelligent district is their inevitabily final direction.This paper firstly introduces the concept and constitution of intelligent district,discusses the reseach condition of domestic and international,indicates the importance of public security and development direction of intelligent district.The development of fieldbus technology made LonWorks field bus outstanding in all kinds of fieldbus.This paper simply introduces some kinds of common using fieldbus and the important position and influence of LonWorks fieldbus in all kinds of fieldbus,carefully describes the technology core of LonWorks technology,puts great emphasis on the introduction of the development and design of public security node of intelligent district which adopts computer,communication and control technology,carefully designs the interfaces of hardware circuits.The public security node of intelligent adopts 8031 single chip as its main processor to complete the application program of user,which mainly collects,process and control all kinds of field signal,and Neuron chip 3150 as its slave processor to communicate with other nodes on field network,which works under parrel slave A mode. The software of this system mainly complete the function of data processing,date communicating, data displaying and so on,which adopts mode construction of program.This paper finally introduces the design of hardware circuits against all kinds of interference. This system adopts the most advanced technology in industry and control field:fieldbus ,and the mesure and control system based on this technology has such advantage as simple construction,high reliability and easily to be produced.The system is facing to common residents,so it will have widely maket.Recently,theapplication of LonWorks technology and design of intelligent building have been on early stage,but with people knowing more about it,it will have extentive application prospect.