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Design and Research electric car data acquisition and processing circuit

Author: TaoSiYan
Tutor: ZhongHongSheng
School: University of Electronic Science and Technology
Course: Circuits and Systems
Keywords: CAN BUS File System SD Card Embedded Operating System
CLC: TP368.1
Type: Master's thesis
Year: 2011
Downloads: 39
Quote: 0
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Abstract


With the rapid development of automobile industry, automobile industry as the pillar of the economy. In the model development, a large number of staff cohesion and economic effort. Because the car related to people’s lives. In order to ensure reliability and safety of motor vehicles, must be strictly carried out during the development of a variety of tests. The experiment, automotive interiors, and environmental parameters of various operating parameters of great reference value, in most cases, the experiment itself is to obtain these parameters. These experiments in-vehicle data acquisition instrument has its special requirements on the environment: mobility, portability, high reliability, easy operation, real-time collection and other functions, so the acquisition of research equipment are important.CAN bus is widely used as a vehicle signal acquisition instrument provides a new means. Based on embedded real-time operating system, use LPC2368 microcontroller series processors, design and development of real-time display and storage of portable data acquisition CAN bus data acquisition vehicle instrument.This paper first detailed analysis of the FAT file system , on the basis of the design of the U disk file operations library. Secondly, according to the vehicle’s actual data collection instrument functional requirements and development costs into account, in order to LPC2368 MCU as the master controller processor, hardware circuit design.Then, use open-sourceμC / OS-II real-time embedded operating system, complete theμC / OS-II in LPC2368 hardware platform migration, includingμC / OS-II system configuration, hardware platform based on LPC2368 modify the parameters and some code changes associated with the processor, as well as after transplantationμC / OS-II for core testing. Finally, on this basis, the preparation of vehicle data collection device applications, including the division of tasks, prioritization of tasks and communication between tasks and other tasks of programming design and implementation. And to facilitate the secondary development of sub-design.As electronic technology and the development and integration of the automotive industry, automotive electronics industry will be rapid development, the subject of the use of the bus CA.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Micro-computer > A variety of micro-computer > Microprocessor
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