Fault Tolerance of Multiprocessor-Structured Control System by Hardware and Software Reconfiguration

Author(s):  
Peichang Wang ◽  
Junxing Zhang ◽  
Zhixue Chang
2010 ◽  
Vol 35 (22) ◽  
pp. 12510-12520 ◽  
Author(s):  
Liangfei Xu ◽  
Jianqiu Li ◽  
Minggao Ouyang ◽  
Jianfeng Hua ◽  
Xiangjun Li

2020 ◽  
Vol 2 (6) ◽  
Author(s):  
Chao‐Jun Chen ◽  
Zuo‐Hua Li ◽  
Jun Teng ◽  
Qing‐Gui Wu ◽  
Bei‐Chun Lin

2012 ◽  
Vol 433-440 ◽  
pp. 4095-4100
Author(s):  
Chan Juan Li ◽  
Chuan De Zhang ◽  
Qing Guo Zhou

Nowadays there are a few works which are concerned with the virtualization technology and the fault-tolerance technology, because virtualization system can provide an environment allowing multiple operating systems running in concurrent way. In this paper, we based on a real-time hypervisor-XtratuM, propose the architecture of a fault-tolerant real-time control system (XFTRTS), which provide local backup execution and to support different level diversity including N-version programming on a single host. Furthermore, we implement a prototype of XFTRTS and test its important performance metric–latency, which is within two microseconds.


2014 ◽  
Vol 889-890 ◽  
pp. 1236-1239 ◽  
Author(s):  
Xin Tang ◽  
Hong Jun Li ◽  
Yi Tao Chen ◽  
Dong Gui Han

A multi-task control system framework for siemens S7-200 plc series is researched in this article. By the analysis of PLC hardware features and operation modes, a multi-task system framework model which can improve PLC control efficiency in the use process and solve program chaos problem has been established. Multi-task system completes the programming system fault tolerance function and strengthens the system robustness.


Author(s):  
A. M. Romanov

A review of robotic systems is presented. The paper analyzes applied hardware and software solutions and summarizes the most common block diagrams of control systems. The analysis of approaches to control systems scaling, the use of intelligent control, achieving fault tolerance, reducing the weight and size of control system elements belonging to various classes of robotic systems is carried out. The goal of the review is finding common approaches used in various areas of robotics to build on their basis a uniform methodology for designing scalable intelligent control systems for robots with a given level of fault tolerance on a unified component base. This part is dedicated to industrial robotics. The following conclusions are made: scaling in industrial robotics is achieved through the use of the modular control systems and unification of main components; multiple industrial robot interaction is organized using centralized global planning or the use of previously simulated control programs, eliminating possible collisions in working area; intellectual technologies in industrial robotics are used primarily at the strategic level of the control system which is usually non-real time, and in some cases even implemented as a remote cloud service; from the point of view of ensuring fault tolerance, the industrial robots developers are primarily focused on the early prediction of faults and the planned decommissioning of the robots, and are not on highly-avaliability in case of failures; industrial robotics does not impose serious requirements on the dimensions and weight of the control devices.


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