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Quasi - real-time data / voice multi-machine communication embedded platform

Author: ZhangYongDong
Tutor: LiuZuo
School: University of Electronic Science and Technology
Course: Signal and Information Processing
Keywords: uC / OS - II Embedded operating system TCP / IP protocol stack Voice transmission
CLC: TP273.5
Type: Master's thesis
Year: 2008
Downloads: 131
Quote: 0
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Abstract


Current embedded technology applications is the speed at which extended to all areas of the embedded technology itself to rapid development, including the development of embedded operating systems especially, there has been some excellent open-source operating systems such as Linux , vxworks, uC / OS-II. uC / OS-II with its streamlined kernel and high real-time and reliability, cutting in the field of industrial control will be as large. The same time as the development of network technology, Internet has become an important basic information facilities, more and more industrial equipment needs direct access to the Internet. The subject from the 835 Reform Institute cooperation projects, restructuring of the original XX air defense artillery systems, between positions, artillery between data and voice communications using wireless / wired system separated to reduce the psychological combat combatants pressure, and enhance the role of anti-aircraft artillery in modern warfare. Text microprocessor MCU network interface chip voice processing chip, cut through the customization of network protocols and embedded operating system and transplantation, to build an Internet-based embedded applications platform. Study on low-cost voice and data acquisition, device control, real-time data transmission system. Papers from the software and hardware platform both discussed in detail based on UC / OS-II and uIP embedded Ethernet design process of system development platform, the entire platform system design using the most embedded systems device development architecture. Design ideas from top to bottom, which is to design the system, and then divided the task before writing task flow diagram, until the end of the programming. ATmega128-based hardware platform, uC / OS-II and embedded TCP / IP protocol stack uIP synthesis and transplantation, and hardware communication protocol and key interface functions carried out a detailed introduction. UC / OS-II design various software modules, scheduling multiple tasks. The software also extends the bootloader and watchdog function, improve the simplicity and security of the system development. After months of hardware and software design and debugging, the subject, has achieved initial design goals. Construct the framework of the the experiment hardware platform and multi-tasking, multi-protocol quasi-real-time systems. Based on the platform, developers do not have in-depth understanding of UC / OS-II real-time operating system you can easily create an embedded network control system, and the development of other applications on the platform task, to provide a reference for future research and lay the foundation.

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Automatic control,automatic control system > Computer control, computer control system
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