Integration And Research Of The Secure Supervising And Measuring System

The thesis bases itself upon the integration of the secure supervising and measuring system and it is divided mainly into two parts to study the problem: the theory sustentation and the practice application. In the theory sustentation, the thesis offers the integration of the subsystems to the integration of the big whole system from three parts: the integration of hardware system, the network technology and the network security, the integration of software system. In the integration of hardware system, the measure control unit is concretely introduced and the intelligent instruments is educed, and then diversified pivotal technology of the instruments are studied deeply through the depiction of the conception and structural character of the intelligent instruments. In the network technology and the network security, the definition and character of the fieldbus is educed firstly, after the actuality and the developing foreground and the faced problems during the developing course are discussed, the network communication protocols cored by the Open System Interconnect Reference Model and the industry ethemet which is most widely applied in practice are dissertated emphatically, the problem of the network security is discussed lastly. In the integration of software, departed from the standard problem of the software integration firstly, after the discussion of the frame design ideology of the software integration and the selection of the developing flat roof and the developing tools, the application of the configuration software in the secure supervising and measuring system is dissertated emphatically. In the practice application, the project ?the large dam secure supervising and measuring system of Taipu Brake, which the penman participated himself, is introduced in detail, which includes the system synopsis, the definition of the pressure, the crack, the horizontal displacement and the vertical displacement, the compare of diversified measuring methods, the choice of the instruments and the configuration of the instruments, the system network topology configuration, the collocation of various metrical dots and instruments' demarcating and testing, the system software and the application software, the communications between the intelligent instruments and the primary interfaces of actual system. For the sake of the thesis integrality, the large dam secure supervising and measuring expert system is introduced. Through the above content the evidence is offered to the theory which sustains the forward chapters. Lastly the summarization is provided and the foreground of the system is expected.