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Through the research of EPA industrial Ethernet technology, ARM embedded system and μC/OS-II real time operating system, this paper discusses how to design and develop remote I/O data acquisition equipment based on EPA industrial Ethernet. The equipment uses EPA technology in thermal power plant on-site data acquisition, and provides a stable, secure, real-time and flexible solution for process control...
Using the embedded multi-MCU and high-speed dual-port RAM data sharing technology, a communication protocol conversion equipment based on embedded multi-MCU and real-time multitasking operating system ??C/OS-II has been researched and developed, which adopts RS232 or RS485 communication interfaces for lower machines such as data acquisition I/O modules, smart intelligent instruments and so on. Then,...
The paper begins with introduction on the xen-based secure computer, the common data sharing methods and virtual disk access control. It puts forward a data sharing method based on virtual disk between guest OSs of Full-Virtualization in order to deal with the shortages of data sharing between virtual guest OSs based on Xen secure computer. It induces further analysis on the Xen driver split mechanism...
As a fully developed fieldbus technology, INTERBUS is widely used in the world. This paper mainly focuses on the research and development process of INTERBUS operator terminal. It consists of three traditional main steps: system design, hardware design and software design. Meanwhile, this paper also aims at INTERBUS network structure, hardware selection and protocol realization, especially discusses...
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