Design And Realization Of Security Protection System Basing On LonWorks Fieldbus Technology

The Security Protection System has widely applications at some important regions. With the fast development of society and technology, a lot of new problems have been brought forward to the Security Protection System by many of the new kinds of delict actions. And the Security Protection Systems at home usually adopt the distributed control architecture. This paper aims at the disadvantage of the distributed control architecture, which is lack of exchangeability and interoperability, and gives a new design blue print of Security Protection System basing on the fieldbus technology.The major research of this paper can be concluded as follows:1 .Introduce the basic situation of the Security Protection System and point out the importance of fieldbus technology in its application.2.Indicate the main technology of fieldbus and introduce the standard, state and trend of it.3.Study principally the Lonworks fieldbus technology and expound the kernel of it that is neuron chip and communications protocol of Lonwork..4.Bring forward an advanced design blue print of Security Protection System that is facing function and basing on the fieldbus technology architecture. This blue print includes the design of the total system and subsystem, circuit design of intelligent node, the communications between the intelligent node and the singlechip, signal collection and output, the design of the application software and so on.5.Test the blue print has designed in the security project of GanSu museum, and analyze the conclusion.The innovation of this paper is describing how to design the project in real life using LonWorks fieldbus technology and basing it from the main design of blue print, selection of hardware, making application programmes, which is in the state of lack of deeply study of application methods in the fieldbus technology project at home. It has a great advantage versus the distributed control system from using advanced design of facing function and inspecting the real time the local information with intelligent nodes. And it has lots of excellences points such as simple architecture, high dependability, and good interoperability. So it can have a widely application in the market.