Distributed processors in a signal processing based control system

1983 ◽  
Author(s):  
Lester Mintzer
Keyword(s):  
Signal Processing ◽  
Control System ◽  
Distributed Processors

Research Gravity Compensation for Master Manipulator with Time Delay

2014 ◽  
Vol 496-500 ◽  
pp. 1413-1416 ◽  
Author(s):  
Hong Min Wang ◽  
Zhi Jiang Du ◽  
Zhi Kai Zhao ◽  
Rong Qiang Liu
Keyword(s):  
Signal Processing ◽  
Control System ◽  
Time Delay ◽  
Minimally Invasive ◽  
External Force ◽  
Dynamic Equation ◽  
Motor Output ◽  
Gravity Compensation ◽  
Robot Surgery ◽  
Output Torque

A gravity compensation algorithm for master manipulator used in minimally invasive robot surgery is proposed in this paper. The Lagrange dynamic equation is used to solve the motor output torque for balancing the master gravity. To avoid time delay in signal processing, multi-thread and multi-event technology are used in software control system. With the algorithm, the force by hand is very small under the condition of exist gravity compensation, less output more than 90% of the external force compared with the lack of gravity compensation.

scholarly journals Software and hardware solution for digital signal processing algorithms testing

2019 ◽  
Vol 124 ◽  
pp. 03006
Author(s):  
M. V. Talanov ◽  
V. M. Talanov
Keyword(s):  
Signal Processing ◽  
Control System ◽  
Digital Signal Processing ◽  
Control Systems ◽  
System Simulation ◽  
Digital Signal ◽  
Drive Control ◽  
Signal Processing Algorithms ◽  
Software And Hardware ◽  
Processing Algorithms

The article describes the microprocessor system for various digital signal processing algorithms testing. The development of electric drive control systems is carried out with the usage of modeling systems such as, MATLAB/Simulink. Modern digital control systems are based on specialized digital signal microcontrollers. The present market offers evaluation boards, for example STM32F4DISCOVERY, which enables to connect a microcontroller to a personal computer. It makes possible to use the microcontroller as a part of the mathematical model of the control system. However, the designing of the control system simulation model and the program for the microprocessor is carried out in different programming environments. Thus, the software and hardware solution for testing programs for the microprocessor, which is a part of the control system, is relevant. This article deals with the designing of the modeling method in which the prototype program for the microprocessor is debugged as a part of the electric drive control system simulation model.

Implementation of a Digital Controller Based on a Reduced Order Observer for an Inherently Unstable Multivariable System

1998 ◽  
Vol 26 (4) ◽  
pp. 327-337
Author(s):  
R. Roddis ◽  
D. Wardman
Keyword(s):  
Signal Processing ◽  
Control System ◽  
Hydraulic System ◽  
Design Methodology ◽  
Experimental Techniques ◽  
Digital Controller ◽  
Multivariable System ◽  
Reduced Order ◽  
Reduced Order Observer ◽  
Signal Saturation

This paper describes the design methodology of a reduced order observer and digital controller for a multivariable inherently unstable electro-hydraulic system. The paper describes the experimental techniques used to identify the parameters of the system using the Signal Processing Toolbox within Matlab, and shows the use of Matlab's Control System Toolbox to design the observer and the feedback gains. The significance of signal saturation is illustrated and the means to avoid such problems in the controller are explained.

Research on Vacuum Consumable Arc Remelting Furnace Control System with Drop Short Pulses Testing

2012 ◽  
Vol 605-607 ◽  
pp. 1670-1674
Author(s):  
Guo Yun Lv ◽  
Shui Xian Hu
Keyword(s):  
Signal Processing ◽  
Control System ◽  
Digital Signal Processing ◽  
Short Pulse ◽  
Digital Signal ◽  
Short Pulses ◽  
Controlling System ◽  
Pulse Testing ◽  
Special Alloy ◽  
Alloy Metal

Stable and Reliable automatic control system of Vacuum Consumable Arc Remelting (VAR) furnace is the key to smelt successfully special alloy metal and high temperature alloy metal, which is related to special properties of remelting ingot directly. This paper makes a deep study for drop short pulse testing and controlling system, and digital signal processing is used to obtain drop short pulse value with different frequency ranges. Firstly, basic theory analysis of drop short pulse measuring and controlling is researched. Secondly, high-speed digital signal processing technology is adopted to sample furnace voltage signal real-timely, band pass filter group is designed directly to process and calculate the amount of drop short pulses in different frequency ranges, Finally, the relationship between drop short pulse frequency and special alloy materials is analyzed, fuzzy PID control method is used to adjust electrode gap and control arc length. Field experiment results show the effectiveness of the whole drop short pulse testing and controlling system.

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