Checking the Accuracy of a Space Robot Control System at Inspecting the State of Geostationary Satellite

Author(s):  
Yevgeny Somov ◽  
Sergey Butyrin ◽  
Sergey Somov
Author(s):  
Ye.I. Somov ◽  
◽  
S.A. Butyrin ◽  
T.Ye. Somova ◽  
◽  
...  

Methods for guidance and motion control of a space robot during a flyby of a geostationary satellite at a visual monitoring its technical state are considered. Numerical results are presented that demonstrate the effectiveness of the developed discrete guidance and control algorithms.


2021 ◽  
Vol 13 (4) ◽  
pp. 168781402110027
Author(s):  
Jianqiang Wang ◽  
Yanmin Zhang ◽  
Xintong Liu

To realize efficient palletizing robot trajectory planning and ensure ultimate robot control system universality and extensibility, the B-spline trajectory planning algorithm is used to establish a palletizing robot control system and the system is tested and analyzed. Simultaneously, to improve trajectory planning speeds, R control trajectory planning is used. Through improved algorithm design, a trajectory interpolation algorithm is established. The robot control system is based on R-dominated multi-objective trajectory planning. System stack function testing and system accuracy testing are conducted in a production environment. During palletizing function testing, the system’s single-step code packet time is stable at approximately 5.8 s and the average evolutionary algebra for each layer ranges between 32.49 and 45.66, which can save trajectory planning time. During system accuracy testing, the palletizing robot system’s repeated positioning accuracy is tested. The repeated positioning accuracy error is currently 10−1 mm and is mainly caused by friction and the machining process. By studying the control system of a four-degrees-of-freedom (4-DOF) palletizing robot based on the trajectory planning algorithm, the design predictions and effects are realized, thus providing a reference for more efficient future palletizing robot design. Although the working process still has some shortcomings, the research has major practical significance.


2009 ◽  
Vol 42 (16) ◽  
pp. 639-644 ◽  
Author(s):  
Hironao Yamada ◽  
Tang Xinxing ◽  
Ni Tao ◽  
Zhao Dingxuan ◽  
Ahmad Anas Yusof

Sign in / Sign up

Export Citation Format

Share Document