外文文献与翻译--基于嵌入式平台的智能小车控制器的设计-其他专业.docx

Design of an Intelligent Car Controller Based on Embedded Platform Liu Gang Zhang Qingyu Wang Yanlin (Key Laboratory of Modern Measurement Control Technology（Beijing Information Science Technology University），Ministry of Education.) (Beijing Information Science Technology University Beijing 100192 China Abstract: The paper presents a design of an intelligent car controller using embedded ARM7 chips as core component. Modular method has been applied in the design of the hardware; the paper focuses on layout of tracking circuit for the car and design ideas for the software. The experiment result proves that the designed intelligent car is stable in operation and good in tracking performance. Keywords: ARM Intelligent Tracking 1 、Introduction In the 21st century, with development of science and technology, researches on intelligent car and its correlative techniques have become the focus in this field. Aiming to enhance practical ability， innovation, and teamwork performance of college students across the country, the Education Department sponsored National Undergraduate Intelligent Car Contest. Based on the background, the paper introduces the design of multifunctional intelligent car controller on embedded platform, including design of hardware circuit and software implementation for key functional modules. 2、Design of hardware By function and application, the controlling platform for the intelligent car is divided into several modules as shown below. 2.1 Design of core module AT91SAM7S256 microprocessor produced by ATMEL has been adopted for the controller of the car, which a 32-bit low-power RISC microprocessor chip based on ARM7 TDMI-S core, and embedded with 64KB SARM, 256KB high-speed Flash and JTAG port for downloading or debugging of the program. As the core component of the car, the microprocessor plays a key role in controlling all running statuses of the car. PWM generating module inside it can be change duty cycle of outputted square wa