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Key Technology and System Architecture of Large-scale Real-time Database

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Tutor: SuHongYe
School: Zhejiang University
Course: Control Theory and Engineering
Keywords: Real-time database,Enterprise integrated automation,Kernel system,Component tech
CLC: TP311.13
Type: Master's thesis
Year:  2005
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With computer technology and data communications and networks booming and the rapid development of information technology growing influence of the traditional industrial control field, a new type of industrial computer control systems and networks, such as distributed control system (DCS), Fieldbus ( Field bus), industrial Ethernet (Industrial Ethernet) in large numbers, and to industrial automation revolution brought about a deep-seated. By computer technology, control technology, network technology, management, technology integration, and put forward the concept of integrated enterprise automation. Real-time database system as the basic data of the integrated enterprise automation platform to provide data support for all kinds of applications, is one of the industrial enterprises building core functional modules of integrated automation system. The paper combines the characteristics of the process of industrial automation, advanced real-time database system, the proposed distributed large-scale real-time database system based on component technology, a series based on the the ESP-iSYS real-time database software. The paper made in the main results can be summarized as follows: 1. By the use of state-of-the-art component technology to build large-scale real-time database system core network application layer, and by a distributed component technology; 2. Using a the microkernel system of reference to the structure of the modern operating system kernel system, and each core module to be independent of the peripheral business completely stripped the kernel, while using the built-in self-diagnostic function to ensure the stability of the system; 3. Optimized data compression and storage technology, so that the system can handle vast amounts of data traffic, and the ability to achieve fast access and query historical data; 4. Existing real-time database system is relatively closed, providing a variety of data interfaces include OPC, COM, OLE Automation,. Net, SOAP, OLEDB, etc.; 5. Programmable function provides built-in virtual machine can effectively support advanced control, data mining, including the complexity of the application; 6. Peripheral applications using mainstream B / S structure, and use of the latest Microsoft Net Framework Web application, provide a powerful flow charts, reports, statistics; 7. Data acquisition through the interface layer to isolate the data source and the system kernel to achieve a unified data transmission, support the OPC, DDE, TCP / IP, RS232/485 universal agreement, and development of the OPC data acquisition system based on wireless network;
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