Perturbation and Stability of Networked Robot System with Data Dropout

2006 ◽  
Author(s):  
Qiao Liu ◽  
Yi Li
Keyword(s):  
Robot System ◽  
Data Dropout ◽  
Networked Robot

scholarly journals Stable control of networked robot subject to communication delay, packet loss, and out-of-order delivery

2014 ◽  
Vol 36 (3) ◽  
pp. 215-233
Author(s):  
Manh Duong Phung ◽  
Thuan Hoang Tran ◽  
Quang Vinh Tran
Keyword(s):  
Packet Loss ◽  
Lyapunov Stability Theory ◽  
Accurate Estimate ◽  
System State ◽  
Robot System ◽  
Control Laws ◽  
Stabilization Control ◽  
The Mean ◽  
Stable Control ◽  
Networked Robot

Stabilization control of networked robot system faces uncertain factors caused by the network. Our approach for this problem consists of two steps. First, the Lyapunov stability theory is employed to derive control laws that stabilize the non-networked robot system. Those control laws are then extended to the networked robot system by implementing a predictive filter between the sensor and controller. The filter compensates influences of the network to acquire accurate estimate of the system state and consequently ensures the convergence of the control laws. The optimality of the filter in term of minimizing the mean square error is theoretically proven. Many simulations and experiments have been conducted. The result confirmed the validity of the proposed approach.

An Architecture for the Competitive Networked Robot System

ROBOT ◽  
2013 ◽  
Vol 35 (4) ◽  
pp. 462 ◽  
Author(s):  
Yan LI ◽  
Lin CAO ◽  
Lei SUN ◽  
Jingtai LIU
Keyword(s):  
Robot System ◽  
Networked Robot

Development of Wire Suspended Robot System (ARANEUS 2.0) for Bridge Inspection

10.29007/zw9k ◽  
2020 ◽  
Author(s):  
Kazuhide Nakata ◽  
Kazuki Umemoto ◽  
Kenji Kaneko ◽  
Ryusuke Fujisawa
Keyword(s):  
Unmanned Aerial Vehicle ◽  
Concrete Surface ◽  
Wire Length ◽  
High Definition ◽  
Bridge Inspection ◽  
Robot System ◽  
Inspection Method ◽  
Aerial Vehicle ◽  
The Wire

This study addresses the development of a robot for inspection of old bridges. By suspending the robot with a wire and controlling the wire length, the movement of the robot is realized. The robot mounts a high-definition camera and aims to detect cracks on the concrete surface of the bridge using this camera. An inspection method using an unmanned aerial vehicle (UAV) has been proposed. Compared to the method using an unmanned aerial vehicle, the wire suspended robot system has the advantage of insensitivity to wind and ability to carry heavy equipments, this makes it possible to install a high-definition camera and a cleaning function to find cracks that are difficult to detect due to dirt.

Recent Advances in Orthodontic Archwire Bending Robot System

2016 ◽  
Vol 9 (2) ◽  
pp. 125-135 ◽  
Author(s):  
Jingang Jiang ◽  
Zhao Wang ◽  
Yongde Zhang ◽  
Xiaoyang Yu ◽  
Xiaowei Guo ◽  
...  
Keyword(s):  
Robot System ◽  
Recent Advances

Design of automatic recharging system of robot based on RFID radio frequency technology

2020 ◽  
Vol 13 ◽  
Author(s):  
Zheng Xiao
Keyword(s):  
Mobile Robot ◽  
Radio Frequency ◽  
Engineering Application ◽  
Data Communication ◽  
Computer Application ◽  
Wireless Data ◽  
Robot System ◽  
Communication Module ◽  
Upper Computer ◽  
Better Than

Background: In order to study the interference of wired transmission mode on robot motion, a mobile robot attitude calculation and debugging system based on radio frequency (RF) technology is proposed. Methods: Microcontroller STM32 has been used as the control core for the attitude information of the robot by using MEMS gyroscope and accelerometer. The optimal attitude Angle of the robot is calculated through nRF24L01 which is the core of the wireless communication module, attitude acquisition module and wireless data communication upper computer application platform. Results: The results shows that the positioning accuracy is better than±5mm. Conclusion: The experimental results show that the proposed attitude solving and debugging system of mobile robot based on RF technology has better reliability and real-time performance. The propped model is convenient for debugging of mobile robot system and has certain engineering application value.

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