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Embedded Sales Terminal Based on Hybrid Net Architecture

Author: LiQian
Tutor: DingXiangQian
School: Ocean University of China
Course: Signal and Information Processing
Keywords: ARM LINUX B / S C / S Terminal
CLC: TP311.52
Type: Master's thesis
Year: 2007
Downloads: 49
Quote: 0
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Abstract


With the rapid development of the network, based on the application of network applications B / S structure management system rapid promotion, but is limited by the current level of the network and the end-user operation level, B / S-based systems need further improvement, combined with other network the advantages of the architecture, the formation of the new model, and the need for more appropriate data terminal equipment support. The terms of the current computer data terminal, the prevalence of end-users in terms of functional excessive maintenance requirements are higher and the prices are high. The need to develop a way to meet the the terminal data recording, simple processing and transmission equipment, clear functionality, ease of operation and low price products. In response to these problems, the paper proposes a stable and low-cost embedded devices as a platform for the development of B / S structure and C / S architecture advantages sale terminals, not only to solve the network demand and meet-to-end requirements, at the same time, the use of embedded LINUX operating system can greatly reduce the hazards of the virus on the network terminal equipment, to improve the safety and reliability of the system. This paper first introduces the background knowledge used by the development system, the next-to-end system from the overall conduct a detailed needs analysis, system functionality and performance requirements, and in accordance with the division of logic modules and function modules for various functions, so that part of the research and development of the entire system can be orderly, efficient swing. Details ARM7-based platform, a collection of C / S and B / S network architecture design of sales in one of the terminal, as well as the corresponding software, hardware module architecture and implementation methods. In this paper, based on LINUX and ARM embedded systems architecture model, as well as the development environment and runtime environment. ARM microprocessor CPU control board is a major part of the the terminal system hardware platform, the basis of the terminal system application software development. Comprehensive consideration of the application environment, factors such as processor speed, choose to ARM720T--kernel S3C44B0 microprocessor control board CPU. Functional modules and interface modules of the main control board and designed according to the needs of the system, the modular design concept, the control board CPU module, memory module, communication module and power module contains an Ethernet interface , a USB_HOST, two RS-232 serial port, an 8 x 8 keyboard interface, a printer interface, and a 320x240 LCD display configuration embedded hardware platform, this platform transplant embedded LINUX operating system, and add the appropriate the application, in order to achieve the integration of B / S and C / S network architecture embedded sale terminals. Finally, the summary of the work done for the paper there, and consummate the of the embedded sale terminals also need to continue research in several directions.

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