针对步进电机驱动原理及实现方式展开分析,讨论了基于数字信号处理(Digital Signal Processing,DSP)的步进电机控制系统设计要点,包括外围电路设计、逻辑综合电路设计、数模转换电路设计、功率驱动电路设计、过流保护电路设计、DSP控制...针对步进电机驱动原理及实现方式展开分析,讨论了基于数字信号处理(Digital Signal Processing,DSP)的步进电机控制系统设计要点,包括外围电路设计、逻辑综合电路设计、数模转换电路设计、功率驱动电路设计、过流保护电路设计、DSP控制系统设计以及检测电路设计等,并且组建相应的仿真实验来验证系统性能,从而积累相应的设计经验,提高系统工作状态的稳定性。展开更多
The thrust hydraulic system of the prototype shield machine with pressure and flow compound control scheme was introduced. The experimental system integrated with proportional valves for study was designed. Dynamics m...The thrust hydraulic system of the prototype shield machine with pressure and flow compound control scheme was introduced. The experimental system integrated with proportional valves for study was designed. Dynamics modeling of multi-cylinder thrust system and synchronous control design were accomplished. The simulation of the synchronization motion control system was completed in AMESim and Matlab/Simulink software environments. The experiment was conducted by means of master/slave PID with dead band compensating flow and conventional PID regulating pressure. The experimental results show that the proposed thrust hydraulic system and its control strategy can meet the requirements of tunneling in motion and posture control for the shield machine, keeping the non-synchronous error within ±3 mm.展开更多
This paper presents the design and implementation of the embedded microcontrollers within a telescope control system. The design objectives of the overall system are to automatically find light emitting objects at nig...This paper presents the design and implementation of the embedded microcontrollers within a telescope control system. The design objectives of the overall system are to automatically find light emitting objects at night within a user specified area, to track a light emitting object for a user specified time given the initial position of the object, and to allow the user access to these functions through a graphical user interface. The embedded system is used to provide a communication link between the graphical user interface and system hardware, to provide angle data processing for a dual axis accelerometer, to provide data processing for an electronic compass, and to provide pulse outputs for the step and direction inputs of three stepper motor drives. This paper will describe the design, implementation, and results of each of these objectives.展开更多
文摘针对步进电机驱动原理及实现方式展开分析,讨论了基于数字信号处理(Digital Signal Processing,DSP)的步进电机控制系统设计要点,包括外围电路设计、逻辑综合电路设计、数模转换电路设计、功率驱动电路设计、过流保护电路设计、DSP控制系统设计以及检测电路设计等,并且组建相应的仿真实验来验证系统性能,从而积累相应的设计经验,提高系统工作状态的稳定性。
基金Project(50425518) supported by National Outstanding Youth Foundation of China Project(2007CB714004) supported by National Basic Research Program of China
文摘The thrust hydraulic system of the prototype shield machine with pressure and flow compound control scheme was introduced. The experimental system integrated with proportional valves for study was designed. Dynamics modeling of multi-cylinder thrust system and synchronous control design were accomplished. The simulation of the synchronization motion control system was completed in AMESim and Matlab/Simulink software environments. The experiment was conducted by means of master/slave PID with dead band compensating flow and conventional PID regulating pressure. The experimental results show that the proposed thrust hydraulic system and its control strategy can meet the requirements of tunneling in motion and posture control for the shield machine, keeping the non-synchronous error within ±3 mm.
文摘This paper presents the design and implementation of the embedded microcontrollers within a telescope control system. The design objectives of the overall system are to automatically find light emitting objects at night within a user specified area, to track a light emitting object for a user specified time given the initial position of the object, and to allow the user access to these functions through a graphical user interface. The embedded system is used to provide a communication link between the graphical user interface and system hardware, to provide angle data processing for a dual axis accelerometer, to provide data processing for an electronic compass, and to provide pulse outputs for the step and direction inputs of three stepper motor drives. This paper will describe the design, implementation, and results of each of these objectives.
