Study Of Communication Technology Of Cyber-Physical System In Building Environment

The topic for the physical integration of information systems (Cyber-Physical System, CPS) features and technical advantages of the built environment constructed CPS architecture model and communication technologies were studied. The Directed acyclic graph (DAG, Directed Acyclic Graph) and genetic algorithm combined with the introduction of CPS communication task scheduling, genetic algorithm is proposed based on CPS task scheduling DAG graph, effectively improve the utilization of CPS communication resources. After sensing with ZigBee technology and compression technology, to build the built environment CPS communications platform architecture, and specific communication interface designed. This article will introduce CPS built environment, to a certain extent, improve the level of intelligent building, while the CPS as a whole has been further improved.This paper introduces the background, application and research status information generated by the physical fusion system, the system introduces the concept of CPS and characteristics to explain the concept of CPS and technical support. Combined with the characteristics of the built environment, building a CPS architecture is based on the built environment, and carried out a detailed description of their physical, information control layer, network layer, middleware layer, application layer.Secondly, the introduction of a directed acyclic graph of the basic concepts and principles of genetic algorithms and implementation process, focusing on the task scheduling CPS network layer. CPS proposed for instant messaging and real-time control requirements, combined with a DAG based on genetic algorithm proposed CPS task scheduling program will calculate the full -Control - Concept of communication into the study, the introduction of task allocation vector matrix to represent the relationship between task and resource scheduling process, the use of distributed computing thinking to solve the conventional communication networks due to work independently of each node caused by the waste and the problem of uneven distribution of resources, effective shortening the time and node utilization tasks.Finally, the built environment in order to monitor the information, the system can be based on changes in the environment and make the appropriate adjustments, research by the topology of ZigBee protocol stack and network management, combined with the characteristics of the built environment, the paper constructs based on ZigBee infection control protocol for wireless networks, enabling wireless communication network will not only be functional, but also with the perception and control capabilities. Build a sense of control Built Environment wireless network architecture, combined with compressed sensing technology to reduce the amount of data transmission in the communication process. Simulation results show that this method is suitable for ZigBee-based network and a sense of control can effectively improve network performance.