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Design of GPS Information Receiving System Based on Nios Ⅱ

Author: ShiGuiYou
Tutor: HanJin
School: Shandong University of Science and Technology
Course: Computer technology
Keywords: GPS receiving information system NiosⅡ FPGA LCD controllor
CLC: TN967.1
Type: Master's thesis
Year: 2011
Downloads: 16
Quote: 0
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Abstract


With the development of science and technology, and the further improvement of people’s request to the communication and navigation technology, location navigation and monitoring technology mainly based on GPS technology, got high-speed development, GPS navigation and positioning technology in many industries have been widely used, such as traffic, sailing, safety, etc. Meanwhile, users have put forward higher requests to the design of GPS receiving system, the traditional signal processing technology is getting more and more difficult to meet the strict requirements of system for real-time, flexibility, portability, expansibility and power.Based on QuartusⅡ9.0 and NiosⅡIDE version 9.0 software environment, the paper uses Altera company DE2-70 development board and GPS module as hardware platform, adopts the SOPC technology, and mainly carries on the research and design of contents as follows.1, GPS positioning information packets to the analysis and display. According to the characteristics of GPS data format, and puts forward a set of appropriate analysis method, and thus designed to accomplish this task, and the software code in external GPS devices in the GPS data packets sent, extract the main geographic information.2,Configurate FPGA,and then achieve certain functions. Through cutting resources FPGA board has, use its IP nuclear sram, three states bridge, timer and some necessary components can be completed and set up the GPS data analysis and display the function of the platform.3, LCD controllor design principle and realization. Through the analysis of the LCD line, field timing waveform, confirmed the hardware composition and software realization process, make the analytical process after the GPS data can pass VGA port real-time accurately displayed on the LCD screen.The system can receive a packet external GPS device sends, and analyzed data according to the provisions of the GPS data forms, such as extracting this geodetic coordinates system, time, date, movement speed and other important geographic information, and displayed to LCD screen interface through the VGA output real-time.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Radio navigation > Navigation systems of the various institutional > Satellite navigation system
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