Browse > Article
http://dx.doi.org/10.5302/J.ICROS.2002.8.7.539

Implementation of Robust Direct Seek Control System for High-Speed Rotational Optical Disk Drives  

Jin, Gyeong-Bok (Korea University of Technology and Education)
Lee, Mun-No (Dept.of Computer Engineering, Dongeui University)
Publication Information
Journal of Institute of Control, Robotics and Systems / v.8, no.7, 2002 , pp. 539-546 More about this Journal
Abstract
This paper presents a new direct seek control scheme that provides fast data access capability and robust performance for high-speed rotational optical disk drives (ODD). When a disk is rotating at a high speed to obtain fast data transfer in ODD, the magnitude and frequency of velocity disturbance caused by eccentric rotation of the disk increase in proportion to the rotational speed of the disk. Such disturbances make it almost impossible for the conventional seek control scheme to achieve stable and satisfactory seek performance. We analyze the problems that may arise when the conventional seek control scheme is applied to the high-speed rotational ODD and propose a new direct seek control scheme that will solve such problems. In the proposed scheme, a seek control system is designed such that its performance is guaranteed for a set of plants with parameter perturbations. The performance of the proposed seek control scheme is shown by experiments using a high-speed rotational ODD.
Keywords
optical disk drives; direct seek control; velocity disturbance; access time; plant uncertainty; structured singular value;
Citations & Related Records
연도 인용수 순위
  • Reference
1 M. Suzuki, H. Tanaka, and Y. Miura, 'Pull-in condition and method of tracking servo in optical disk drive,' J Inst. Television Jpn, vol. 44, no. 10, pp. 1391-1397, 1990   DOI
2 M. Suzuki, H. Tanaka, M. Miura; Y. Suzuki, and M. Mori, 'Advanced direct seeking system for 5.25, magnetooptica1 disk drive,' J Appl. Phys., vol. 32, Part 1, no. 11B, pp. 5371-5375, 1993   DOI
3 T. Semba, 'Model-following digital servo using multirate sampling for an optical disk drive,' J Appl. Phys., vol. 32, Part 1, no. 11B, pp. 5385-5391,1993   DOI
4 K. B. Jin, H. K. Lee, and M. 1. Chung, 'Direct seek control scheme for high-speed rotational optical disk drives,' Electronics Letters, vol. 34, no. 15, pp. 1476-1477, Jul 1998   DOI   ScienceOn
5 M. Steinbuch, P. Groos, G. Schootstra, and H. Bosgra, 'Multi variable control of a compact disc player using DSPs,' in Proc. Amer. Contr. Conf., pp. 2434-2438, 1994   DOI
6 G. Balas, J. C. Doyle, K. Glover, A. Packard, and R. Smith, ${\mu}$-Analysis and Synthesis Toolbox, The Math Works, Inc. 1994
7 K. ZHOU, J. C. DOYLE, and K. GLOVER, Robust and Optimal Control, Prentice-Hall, Inc. 1989
8 이문노, 문정호, 정명진, 정수열, 신동호, '컴펙트 디스크 플레이어의 $H_{\infty}$ 제어기의 구현,' 전기학회 하계학술대회 논문집, pp.732-735, 1994
9 J. C. Doyle, 'Analysis of feedback systems with structured uncertainties,' IEE Proc., Part D, vol. 129, no. 6, pp. 242-250,1982   DOI
10 A. Packard and J. C. Doyle, 'The complex structured singular value,' Automatica, vol. 29, no. 1, pp. 71-109, 1993   DOI   ScienceOn
11 J.-H. Moon, M.-N. Lee, M. J. Chung, S. Y. Jung, and D. H. Shin, 'Track-following control for optical disk drives using an iterative learning scheme,' IEEE Trans. Cons. Electr., vol. 42, no. 2, pp. 192-198, 1996   DOI   ScienceOn
12 M. Steinbuch and G. Schootstra, 'Robust control of a compact disc player,' in Proc. Conf. Dec. Contr., pp. 2596-2600, 1992
13 M. Kamoshita and M. Fujita, 'Tracking control of an optical disk drive using ,u-analysis and synthesis,' in Proc. Conf Dec. Contr., pp. 873-874, 1995   DOI