Effect of Parallel Planning on System Reliability of Real-Time Expert
Effect of Parallel Planning on System Reliability of Real-Time Expert
复制标题
并行规划对实时专家系统可靠性的影响
DOI：
10.1109/24.589932
复制
发表时间：
1997
期刊：
影响因子：
--
通讯作者：
I. Chen
中科院分区：
文献类型：
--
作者：
I. Chen
实时专家系统（RTXS）是嵌入在过程控制系统中的专家系统，它必须在实时约束内响应外部事件来规划和执行控制策略。本文提出了一种评估单处理机和多处理机RTXS可靠性的方法。本文讨论了为什么有内在的RTXS程序，必须考虑在其可靠性建模故障。然后，它表明，对于单处理器RTXS，没有一个单一的规划算法可以避免所有类型的内在故障。最后，以减少RTXS固有故障、提高嵌入式系统可靠性为目标，提出了一种具有并行规划的多处理器体系结构。机器人控制系统说明了该方法。
Real-time expert systems (RTXS) are expert systems embedded in process-control systems which must plan and execute control strategies in response to external events within a real-time constraint. This paper presents a method for estimating the reliability of uni-processor and multi-processor RTXS. The paper discusses why there are intrinsic faults in RTXS programs that must be considered in their reliability modeling. Then, it shows that for uni-processor RTXS, no single planning algorithm can avoid all types of intrinsic faults. Finally, it presents a multiprocessor architecture with parallel planning with the objective of reducing intrinsic faults of RTXS and improving the embedded system reliability. A robot control system illustrates the method.