| A Control Scheme Based on Online Delay Evaluation for a Class of Networked Control Systems |
| |
| 引用本文： | 马向华,谢剑英,魏震. A Control Scheme Based on Online Delay Evaluation for a Class of Networked Control Systems[J]. 东华大学学报(英文版), 2004, 21(4): 124-130 |
| |
| 作者姓名： | 马向华 谢剑英 魏震 |
| |
| 作者单位： | DepartmentofAutomation,ShanghaiJiaotongUniversity,200030 |
| |
| 基金项目： | ThisworkissponsoredbyNationalNaturalScienceFoundationofChina(No.69984003)andNationalHighTechnologyIndustrializationProject(No.2050[2000]). |
| |
| 摘 要： | A control scheme that integrates control technology with communication technology to solve the delay problem is introduced for a class of networked control systems: Networked Half-Link Systems (NHLS). Concretely, we use the master-slave clock synchronization technology to evaluate the delays online, and then the LQ optimal control based on delays is adopted to stabilize the controlled plant. During the clock synchronization process, the error of evaluated delays is inevitably induced from the clock synchronization error, which will deteriorate the system performances, and even make system unstable in certain cases. Hence, the discussions about the clock error, and the related control analysis and design are also developed. Specifically, we present the sufficient conditions of controller parameters that guarantee the system stability, and a controller design method based on the error of delays is addressed thereafter. The experiments based on a CANbus platform are fulfilled, and the experimental results verify the previous analytic results finally.
|
| 关 键 词： | 网络控制系统 NCS 网络半链接系统 NHLS 实时同步技术 迟滞最优控制 CANbus |
A Control Scheme Based on Online Delay Evaluation for a Class of Networked Control Systems |
| |
| MA Xiang-hua,XIE Jian-ying,WEI Zhen. A Control Scheme Based on Online Delay Evaluation for a Class of Networked Control Systems[J]. Journal of Donghua University, 2004, 21(4): 124-130 |
| |
| Authors: | MA Xiang-hua XIE Jian-ying WEI Zhen |
| |
| Affiliation: | Department of Automation,Shanghai J iaotong University,200030 |
| |
| Abstract: | A control scheme that integrates control technology with communication technology to solve the delay problem is introduced for a class of networked control systems: Networked Half-Link Systems (NHLS). Concretely, we use the master-slave clock synchronization technology to evaluate the delays online, and then the LQ optimal control based on delays is adopted to stabilize the controlled plant. During the clock synchronization process, the error of evaluated delays is inevitably induced from the clock synchronization error, which will deteriorate the system performances, and even make system unstable in certain cases. Hence, the discussions about the clock error, and the related control analysis and design are also developed. Specifically, we present the sufficient conditions of controller parameters that guarantee the system stability, and a controller design method based on the error of delays is addressed thereafter. The experiments based on a CANbus platform are fulfilled, and the experimental results verify the previous analytic results finally. |
| |
| Keywords: | Networked Control Systems NCS Networked Half-Link Systems NHLS Clock Synchronization Optimal Control Based on Delays CANbus. |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
