Iterative Learning Synchronized Control of Multi-leaf Collimator Based on Cross-coupled Control

被引：0
作者：
Zhang X. [1 ]
Lu W. [1 ]
Miao Z. [1 ]
Jiang Z. [1 ]
Xu W. [1 ]
机构：
[1] School of Automation and Electrical Engineering, Lanzhou Jiaotong University, Lanzhou
来源：
European Journal of Electrical Engineering | 2019年 / 21卷 / 05期
关键词：
Conformal radiotherapy; Cross-coupled control; Iterative learning control; Multileaf collimator; Synchronized control;
D O I：
10.18280/ejee.210509
中图分类号：
学科分类号：
摘要：
The purpose of this research was to ensure that the leaves of multi-leaf collimator (MLC) move along the trajectory set in the radiotherapy plan. Aiming at the characteristics of multileaf control of multi-leaf collimator, the model of leaf control system is established. Taking the synchronized error between leaves as the input of the system, combined with PD CCC and PD ILC, an iterative learning control strategy based on cross-coupled is proposed, and verified by experiments, then compared with the multi-leaf control strategy that adopts iterative learning control algorithm independently. The experimental results show that the control strategy proposed in this study can reduce the synchronized error between leaves, and the initial value of the maximum absolute value of the error proposed reduces the synchronous position error of the leaves from the beginning, which meets the requirements of radiation therapy. The results provide a guarantee for the synchronous control of MLC to improve the efficiency of conformal radiotherapy. © 2019 International Information and Engineering Technology Association. All rights reserved.
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页码：465 / 470
页数：5
相关论文
共 20 条
  • [1] Datta N.R., Ordonez G.S., Gaipl U.S., Paulides M.M., Crezee H., Gellermann J., Marder D., Puric E., Bodis S., Local hyperthermia combined with radiotherapy and-/or chemotherapy: Recent advances and promises for the future, Cancer Treatment Reviews, 41, 9, pp. 742-753, (2015)
  • [2] Poulsen P.R., Cho B., Ruan D., Dynamic multi-leaf collimator tracking of respiratory target motion based on a single kilovoltage imager during arc radiotherapy, International Journal of Radiation Oncology Biology Physics, 77, 2, pp. 600-607, (2010)
  • [3] Arumugam S., Xing A., Goozee G., Holloway L., Independent calculation-based verification of IMRT plans using a 3D dose-calculation engine, Medical Dosimetry, 38, 4, pp. 376-384, (2014)
  • [4] Zaferullah Z., Mishra B.K., Bansode R., Vidwans M., Dsouza K., Control of collimator for conformal radiation therapy based on FPGA implementation, Global Journal of Research in Engineering, 14, 4, pp. 27-31, (2014)
  • [5] Xin Z., Parameter optimization of PID controller based on PSO for multi-leaf collimator, Indonesian Journal of Electrical Engineering and Computer Science, 11, 10, pp. 6127-6134, (2013)
  • [6] Kothare M.V., Campo P.J., Morari M., Nett C.N., A unified framework for the study of anti-windup designs, Automatica, 30, 12, pp. 1869-1883, (1994)
  • [7] Zhang X., Li J.X., Dang J.W., Wang Y.P., Design and parameters optimization of the fractional order anti-windup controller for multileaf collimator, Journal of Engineering Science and Technology Review, 10, 2, pp. 35-41, (2017)
  • [8] Hou J.H., Study on Key Techniques of Multi Leaf Collimator Radiotherapy System, (2006)
  • [9] Cavanini L., Colombo L.M., Ippoliti G., Orlando G., Development and experimental validation of a LQG control for a pre-compensated multi-axis piezo system, Industrial Electronics (ISIE), IEEE 26th International Symposium on, pp. 460-465, (2017)
  • [10] Koren Y., Cross-coupled biaxial computer control for manufacturing systems, Journal of Dynamic Systems, Measurement, and Control, 102, pp. 265-271, (1980)
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