Research Of Security Architecture Construction Technology Of Built Environment CPS

In the rapidly developing information industry twenty-first Century,technology breakthrough and innovation are the impact on people's vision,the Cyber-Physical system CPS is particularly prominent,to win more attention. It has been hailed as another revolution after IT computer and Internet,in recent years the rise of a popular cutting-edge research in the field.Currently the model began to try to applications in the fields of medical, machinery, transportation, industrial and other closely related with the national economy. Modern architecture as a pillar industry,has obtained more and more attention. At present,the research on CPS is still in the initial stage,many of the concepts and techniques are not perfect,and the system structure and security as the focus of CPS research, is an important guarantee to achieve all the features, there are still many problems need researchers to solve.This thesis first introduces the concept,the characteristics,the challenges and its relationship with the difference between the Internet of Things of cyber-physical system,and analysis the architecture needs and security needs of Building Environmental CPS, then proposes the thought that construction of Building Environmental CPS Security Architecture. And further CPS architecture design from architecture and information security point of view.And further designs the CPS system from the point of architecture security and information security.From the structural safety point of view,this thesis proposes a new CPS construction methods based on the improved scale-free network.Firstly, improve the traditional scale-free networks "rich get richer" phenomenon by controlling node degrees, Then mix the thought of distributed computing and CPS'own characteristics, formed a new CPS architecture.CPS node is regard as the smallest unit of CPS.In Pajek environment, make this structural soundness of research by preference contraction algorithms t in complex networks,The experimental results show that the structure makes the system not only has the ability to resist randomness of CPS node failure,but also significantly improved its vulnerability to a selective failure,which is a robust CPS system structure, guarantee the safe operation of CPS.From information security point of view, this thesis presents Building Environmental CPS safety monitoring system based on immune principle, the method put the advantages of the immune system like memory,dynamic learning antibody diversity and so on into the CPS by constructing Building Environmental CPS safety monitoring system, then the CPS system can enable accurately identify and fast response for the intrusion data.In the Matlab 2010 simulation environment,using KDDCUP99 intrusion detection evaluation data set for simulation experiments,simulation results show that this algorithm has a high detection rate and a very low false detection rate,guarantee the security of CPS system in a certain extent.Finally,the authors built a CPS test platform which has perceive, computing, control, communications functions guided by Concept of CPS in the laboratory.Using the temperature,humidity,smoke,ultrasonic and other sensor as the detector to achieve CPS sensing function.Using various data processing algorithms as a controller to achieve CPS computing and control functions.Using mechanical arm as actuators,Bluetooth,RS485 and other communication modules achieve CPS communication functions.Explore the construction technology of Building Environmental CPS system,leading CPS become better to improve the level of building intelligence.