论文依托高校PLC实验室建设项目,设计与实现满足教学与科研需求的基于WinCC Web Navi-gator的PLC远程实验室系统。该系统较好地融合和运用了计算机自动控制技术、网络通信技术、监控技术、多媒体技术、网络数据库技术,具有重要的现实意...论文依托高校PLC实验室建设项目,设计与实现满足教学与科研需求的基于WinCC Web Navi-gator的PLC远程实验室系统。该系统较好地融合和运用了计算机自动控制技术、网络通信技术、监控技术、多媒体技术、网络数据库技术,具有重要的现实意义。论文着重研究和讨论了远程实验系统硬件和软件结构设计以及远程实验室网站的设计与实现。展开更多
阐述了WinCC Web Navigator的基本工作原理。设计并实现了油田基于WinCC Web Navigator的远程数据采集控制系统。该系统创新性的利用Internet网络和IE浏览器完成了控制系统的远程监控,有效地解决了控制系统的远程访问的难题。可广泛用...阐述了WinCC Web Navigator的基本工作原理。设计并实现了油田基于WinCC Web Navigator的远程数据采集控制系统。该系统创新性的利用Internet网络和IE浏览器完成了控制系统的远程监控,有效地解决了控制系统的远程访问的难题。可广泛用于工业控制等方面。展开更多
为有效解决冷室压铸机远程监控方面的难题,开发了基于WinCC Web Navigator的冷室压铸机远程监控系统。利用"瘦客户"系统WinCC Web Navigator远程监控车间现场冷室压铸机群的人机界面及生产数据,实现了企业管控一体化、信息综...为有效解决冷室压铸机远程监控方面的难题,开发了基于WinCC Web Navigator的冷室压铸机远程监控系统。利用"瘦客户"系统WinCC Web Navigator远程监控车间现场冷室压铸机群的人机界面及生产数据,实现了企业管控一体化、信息综合化,从而提高了铸件质量及生产效率。展开更多
This paper presents a design of optimal controllers with respect to a meaningful cost function to force an underactuated omni-directional intelligent navigator （ODIN） under unknown constant environmental loads to tr...This paper presents a design of optimal controllers with respect to a meaningful cost function to force an underactuated omni-directional intelligent navigator （ODIN） under unknown constant environmental loads to track a reference trajectory in two-dimensional space. Motivated by the vehicle＇s steering practice, the yaw angle regarded as a virtual control plus the surge thrust force are used to force the position of the vehicle to globally track its reference trajectory. The control design is based on several recent results developed for inverse optimal control and stability analysis of nonlinear systems, a new design of bounded disturbance observers, and backstepping and Lyapunov＇s direct methods. Both state- and output-feedback control designs are addressed. Simulations are included to illustrate the effectiveness of the proposed results.展开更多
文摘论文依托高校PLC实验室建设项目,设计与实现满足教学与科研需求的基于WinCC Web Navi-gator的PLC远程实验室系统。该系统较好地融合和运用了计算机自动控制技术、网络通信技术、监控技术、多媒体技术、网络数据库技术,具有重要的现实意义。论文着重研究和讨论了远程实验系统硬件和软件结构设计以及远程实验室网站的设计与实现。
基金Supported in Part by the Australian Research Council under Grant DP0988424
文摘This paper presents a design of optimal controllers with respect to a meaningful cost function to force an underactuated omni-directional intelligent navigator （ODIN） under unknown constant environmental loads to track a reference trajectory in two-dimensional space. Motivated by the vehicle＇s steering practice, the yaw angle regarded as a virtual control plus the surge thrust force are used to force the position of the vehicle to globally track its reference trajectory. The control design is based on several recent results developed for inverse optimal control and stability analysis of nonlinear systems, a new design of bounded disturbance observers, and backstepping and Lyapunov＇s direct methods. Both state- and output-feedback control designs are addressed. Simulations are included to illustrate the effectiveness of the proposed results.
