Quadratic Time Increment Indexing for Stepper Motor Motion Control

1987 ◽  
Author(s):  
M. Savage ◽  
J. E. Grover
Keyword(s):  
Motion Control ◽  
Fundamental Problem ◽  
Real Time Control ◽  
Mechanical Motion ◽  
Specific System ◽  
Maximum Torque ◽  
Time Increment ◽  
Time Control ◽  
Indexing System ◽  
Pulse Timing

Abstract A fundamental problem of mechanical motion control is that of indexing a mass reliably from one stationary position to another in a given time with as little power as possible. A quadratic time increment function is proposed and demonstrated for stepping motor control. With this function, a given motor can index a mass through a variety of index lengths. The indexing system includes a microprocessor to adjust the motor pulse timing to index the inertial load through a range of motions — each with the same maximum torque. The functions and the sizing of the motor are described. The interaction between the microprocessor calculation speed and the indexing capability is given for achievable real time control. Experimental results for a specific system are presented.

Design of Motion Control Card on PXI Bus

2012 ◽  
Vol 203 ◽  
pp. 449-453
Author(s):  
Xiao Kun Wang ◽  
Yu Bao Niu ◽  
Li Juan Zhang ◽  
Feng Feng ◽  
Ping Wang
Keyword(s):  
Motion Control ◽  
Data Transfer ◽  
Tracking System ◽  
High Rate ◽  
Real Time Control ◽  
Data Transfer Rate ◽  
Control Card ◽  
Time Control ◽  
Motion Control Card ◽  
Transceiver Module

The article introduces the design scheme of a motion control card on PXI bus. A detailed description of PCI interface module, FPGA module, DSP module, serial transceiver module and analog acquisition module is also given in this paper. Tests of data transfer rate between host and motion control card are adopted, the results suggest that the PXI local bus can get a high-rate communication. The motion control card is applied to control the two-dimensional turntable of an optoelectronic imaging and tracking system. The experiments indicate that the motion control card based on PXI can meet the requirements of real-time control. The performance of control is also acceptable.

The Design of Carton Samplemaker’s Embedded Numerical Control System Based on Windows CE

2011 ◽  
Vol 211-212 ◽  
pp. 330-335 ◽  
Author(s):  
Jian Qun Liu ◽  
Dong Xu ◽  
Ji Rong Wu ◽  
Xiao Li ◽  
Jian Huang
Keyword(s):  
Real Time ◽  
Motion Control ◽  
Device Driver ◽  
Windows Ce ◽  
Numerical Control ◽  
Driver Model ◽  
Numerical Control System ◽  
Real Time Control ◽  
Time Control ◽  
Multiple Tasks

In this paper, a new embedded numerical control (ENC) system for carton samplemaker based on Windows CE is presented. The hardware design of ENC system based on ARM9 processor S3C2440A and motion control chip MCX314As is discussed principally. Besides, the device driver of MCX314As is developed by using stream interface driver model under Windows CE operating system. Furthermore, the software structure of the ENC system is introduced, and the way how to utilize multi-thread technology to realize the real-time control of the carton samplemaker is also discussed in detail. The system is proved to be good at dealing with multiple tasks processing, real-time and reliability of motion control.

scholarly journals An Easy-to-use and Economic Experimental Apparatus for Motion Control Education

2013 ◽  
Vol 4 (2) ◽  
pp. 24-29
Author(s):  
Manh-Tuan Ha
Keyword(s):  
Real Time ◽  
Motion Control ◽  
Real Time Control ◽  
Operation System ◽  
Time Control ◽  
Experimental Apparatus ◽  
Hands On ◽  
Control Education ◽  
Control Apparatus ◽  
Input Shaping Control

Motion control education in engineering requires hands-on experiments to catch the concept of feedback control, but experimental apparatus for motion control experiments is expensive, complex in mechanism and is hard to use it in general. In this paper, we develop an easy-to-use and economic experimental apparatus for motion control education using an open-source free operation system LINUX and a free real-time kernel RTAI. The developed apparatus is reliable in mechanical structure, and fast enough to realize 100 microsecond sampling time for real-time control purpose, and so it can test conventional PID control logics, various input shaping control logics and advanced motion control logics with cheap prices. The validity of the developed motion control apparatus is demonstrated by testing P, PD control logics and ZV input shapers experimentally.

scholarly journals Design and Research of Picking Manipulator Obstacle Avoidance System Based on IOT

2018 ◽  
Vol 14 (03) ◽  
pp. 152
Author(s):  
Biqing Li ◽  
Miao Tian ◽  
Shiyong Zheng ◽  
Yongfa Ling
Keyword(s):  
Remote Control ◽  
Wireless Communication ◽  
Motion Control ◽  
Obstacle Avoidance ◽  
Communication Technology ◽  
High Reliability ◽  
Real Time Control ◽  
Control Delay ◽  
Time Control ◽  
Smooth Path

<p>In recent years, wireless communication technology has developed rapidly and the speed of wireless communication data transmission is faster and faster, as well as remote control delay has greatly reduced, which is almost negligible, so the remote control is gradually being widely used in various fields. This paper achieves the  motion control of picking manipulator and obstacle avoidance system with the advantages of IOT remote control technology and PLC real-time control system. Experiments show that the designed picking manipulator motion control and obstacle avoidance system not only have strong obstacle avoidance ability but also have smooth path optimization with high reliability and stability.</p>

Linear Interpolation Control of Numerical Control Machine Tools and its Realization Based on Multi-Axis Motion Control Card

2011 ◽  
Vol 201-203 ◽  
pp. 2423-2426
Author(s):  
Xiu Min Shi ◽  
Yi Dai ◽  
Wei Liu
Keyword(s):  
Motion Control ◽  
Linear Interpolation ◽  
Numerical Control ◽  
Real Time Control ◽  
Control Card ◽  
Time Control ◽  
Control Interface ◽  
Motion Control Card ◽  
Interpolation Procedure ◽  
Control Accuracy

The servo system consisting of PC computer, multi-axis motion control card, servo driver, servo motor and load was constructed. The paper studied the interpolation principle and edited the procedure of linear interpolation for two axis servo motors. After the communication between PC computer and servo driver based on the motion control card, the paper edited the control interface program calling the interpolation procedure, which could realize the simulation control and real time control to servo motors. The compare results show the control accuracy of the experiment is higher.

A NURBS Interpolator Using Multiprocessor on Chip for High Performance Motion Control

2011 ◽  
Vol 130-134 ◽  
pp. 1929-1932
Author(s):  
Wei Tang ◽  
Xiao Dong Zhang ◽  
Yong Ding ◽  
Jing Jing
Keyword(s):  
Motion Control ◽  
High Speed ◽  
High Performance ◽  
Experimental Tests ◽  
High Accuracy ◽  
Motion Controller ◽  
Real Time Control ◽  
Time Control ◽  
Nurbs Interpolation ◽  
On Chip

Modern CNC system adopts the NURBS interpolation for the purpose of achieving high-speed and high accuracy performance. However, in conventional control architectures, the computation of the basis functions of a NURBS curve is very time consuming due to serial computing constraints. In this paper, a novel multiprocessor-based motion controller on chip utilizing its high-speed parallel computing power is proposed to realize the NURBS interpolation. The motion control algorithm and I/O control are also embedded in the chip to implement real-time control and NURBS interpolation simultaneously. The experimental tests using an X-Y table verify the outstanding computation performance of the multiprocessor-based motion controller on chip. The result indicates that shorter sampling time (0.1 ms) can be achieved for NURBS interpolation and high-accuracy motion control.

A Real Time Control Architecture for Continuously Managing Patients in a Care Unit

1995 ◽  
Vol 34 (05) ◽  
pp. 475-488
Author(s):  
B. Seroussi ◽  
J. F. Boisvieux ◽  
V. Morice
Keyword(s):  
Real Time ◽  
Linear Time ◽  
Treatment Plan ◽  
Control Architecture ◽  
Real Time Control ◽  
Time Representation ◽  
Time Control ◽  
Continuous Support ◽  
Definition Of ◽  
Computerized System

Abstract:The monitoring and treatment of patients in a care unit is a complex task in which even the most experienced clinicians can make errors. A hemato-oncology department in which patients undergo chemotherapy asked for a computerized system able to provide intelligent and continuous support in this task. One issue in building such a system is the definition of a control architecture able to manage, in real time, a treatment plan containing prescriptions and protocols in which temporal constraints are expressed in various ways, that is, which supervises the treatment, including controlling the timely execution of prescriptions and suggesting modifications to the plan according to the patient’s evolving condition. The system to solve these issues, called SEPIA, has to manage the dynamic, processes involved in patient care. Its role is to generate, in real time, commands for the patient’s care (execution of tests, administration of drugs) from a plan, and to monitor the patient’s state so that it may propose actions updating the plan. The necessity of an explicit time representation is shown. We propose using a linear time structure towards the past, with precise and absolute dates, open towards the future, and with imprecise and relative dates. Temporal relative scales are introduced to facilitate knowledge representation and access.

Sign in / Sign up

Export Citation Format

Share Document