Coding optimization for the absolute optical rotary encoder

Ting Feng Wang, Yung Jhe Yan, Hou Chi Chiang, Tsan Lin Chen, Yang-Mang Ou

研究成果: Conference contribution同行評審

2 引文 斯高帕斯(Scopus)

摘要

Precise positioning system is assuming increasing importance. One of Implementation is an optical rotary encoder system which is composed of a fixed light source, a group of photodetectors, and a coding disc. In fact, position resolution is affected with a permutation of coding on the disc. Unstable dc voltage was found from an analog signal transmitted by photoelectric detectors. Setting up a threshold voltage for digital binarization become difficult in this case.In this paper, the limitations, characteristics and operation mode of coding on the disc operation mode arrangement rules of coding on the disc was observed. After collecting the relevant literature, the mathematical sequence named De Bruijn sequence which matches to the arrangement of the above rules and restrictions was found. The desired requirements are summarized and used to filter out the best solution in all solution sets with the designed algorithm. Finally, the characteristics of new and old solutions are compared and discussed.

原文English
主出版物標題2018 International Automatic Control Conference, CACS 2018
發行者Institute of Electrical and Electronics Engineers Inc.
ISBN(電子)9781538662786
DOIs
出版狀態Published - 9 一月 2019
事件2018 International Automatic Control Conference, CACS 2018 - Taoyuan, Taiwan
持續時間: 4 十一月 20187 十一月 2018

出版系列

名字2018 International Automatic Control Conference, CACS 2018

Conference

Conference2018 International Automatic Control Conference, CACS 2018
國家/地區Taiwan
城市Taoyuan
期間4/11/187/11/18

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