Image Driving Speed Control for a Smart Car System

Abstract:

In the Seventh Freescale Cup National College Smart Car Competition, we designed and implemented a smart car to realize the autonomous driving based on road tracking method. This paper presents three main aspects of the smart car, the mechanical structure; hardware system; software framework and algorithms employed for road tracking and PID speed control. The image-based road tracking system was used to control the steering angle and the speed of the smart car. The images captured by an analog CMOS camera were preprocessed by a monochrome binarization circuit, and then the binarization signals were fed into the MCU as well as the speed feedback signals obtained by a rotary photoelectric encoder, as input variables for controlling the motor, steering gear etc, by the MCU. Experimental results showed that this smart car can accurately recognize the images of various road elements to precisely adjust the steering angle, and steadily run at a maximum controllable speed.

• Periodical: Applied Mechanics and Materials (Volume 437)
• Pages: 690-694
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.437.690
• Online since: October 2013
• Authors: Shuan Chen, Jin Gang Bai, Jian Rong Wang*, Yu Qing He, Tian Yi Zhou, Jian Wu Dang
• Keywords: Mechanical Structure, Road Tracking, Smart Car, Speed Control

References

[1] Zhenlin Lu, Jingjiao Li and Zhang Minghui, Intelligent control research based on the smart car, 2010 2nd International Conference on Advanced Computer Control (ICACC 2010), pp.292-7, (2010).

DOI: 10.1109/icacc.2010.5486668

[2] Hanlin Zhan, Lei Deng and Shengjun Xue, Design of smart car speed control system based on fuzzy algorithm and PID algorithm, Proceedings of the 2012 IEEE 7th International Power Electronics and Motion Control Conference (ECCE 2012), pp.763-6, (2012).

DOI: 10.1109/ipemc.2012.6258802

[3] Zhang Lu and Song Qiu-hong, Design of Smart Car Servosystem Based on Camera, Advanced Materials Research, v 383-390, pp.5923-7, (2012).

DOI: 10.4028/www.scientific.net/amr.383-390.5923

[4] Huang Junhua, Li Li, Liang Xianlin and Zhang Hongbing, Creative Practice Based on Freescale Processor Smart Car with Photoelectric Sensor, 2010 Second International Conference on Communication Systems, Networks and Applications (ICCSNA 2010), pp.375-8, (2010).

DOI: 10.1109/iccsna.2010.5588822

[5] Zhou Quan, Wang Gui-youg, Jia Xian-guang and Zhao Ying-bing, Design of Smart Car Based on MC9S12DG128B, Journal of Kunming University of Science and Technology (Science and Technology), v 35, n 5, pp.37-40, 46, Oct. (2010).

[6] Yang Xiu-chun and You Lin-ru, Smart car control system with route memory function, Computer Engineering, v 37, n 4, pp.187-9, 20 Feb. (2011).

[7] Li Ruixian, Study of control algorithm for smart car system, Proceedings - 4th International Conference on Information and Computing, ICIC 2011, pp.184-187, (2011).