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A multifunctional automobile traffic monitoring device hardware systems research

Author: QiWeiLong
Tutor: ZuoPing
School: Chongqing University
Course: Mechanical and Electronic Engineering
Keywords: Traffic monitoring Embedded hardware system Au1250
CLC: U463.6
Type: Master's thesis
Year: 2009
Downloads: 93
Quote: 0
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Abstract


To ease the increasing traffic pressure and improve vehicle safety performance, appeared in a variety based on embedded computer, communications, vehicle monitoring sensors and other technology products, greatly improving road traffic safety and reduce the pressure, but the current domestic automobile monitoring devices in general there is a single function, performance is weak and other shortcomings. Based on the MIPS architecture 32-bit embedded Au1250 processor, developed a multi-car traffic monitoring device hardware system. This paper briefly introduces the automobile traffic monitoring device research background, purpose and research trends at home and abroad, after analysis of the relevant technical problems on the system has been studied, and the monitoring device driving the functional requirements of the hardware platform made analysis. Proposed a multi-car traffic monitoring device hardware system design. The program based on GPS / GPRS based navigation monitoring and dispatching functions, the use of high-performance Au1250 processor itself extend the benefits of processing video data image of the traffic monitoring and Au1250 rich interface on the expansion of the CAN, LIN bus interface, etc. to monitor all electronic control unit car. Then get a car for driving above monitoring the demand for hardware system detailed design of each module, in the detailed design process, Au1250 embedded processor design around its various peripheral modules. Includes the main controller module, wireless communication module expansion, car bus monitor module, traffic image acquisition control module, external storage module, the man-machine interface module, system debugging module, the system power module detailed design. After the harsh environment for automotive traffic monitoring device for a vehicle project implementation, vehicle monitoring device as a high-speed circuit, will be a variety of interference and self-interference. After analyzing the driving environment of electromagnetic disturbance, in ensuring electromagnetic compatibility and signal integrity in the case of monitoring devices on the vehicle portion of the PCB layout and anti-jamming design. Finally, based on the above design, the main module for the actual circuit debugging and analysis. System debug and test results prove that automobile traffic monitoring device hardware system is working properly the various functional modules to meet the functional requirements, and stable operation, high reliability, realized a paper target.

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