The Computer Projection Remote Page-Turner Controller Design Based on the HT82M99E MCU

2013 ◽  
Vol 331 ◽  
pp. 315-320
Author(s):  
Jian Ping Cao ◽  
Cong Hong Li ◽  
Guo Dong Jiang
Keyword(s):  
Controller Design ◽  
Soft Decoding ◽  
The Cost

Based on the analyzing the feature of HT82M99E MCU and the characteristic of signal codes from the remote transmitter based on PT2262 chip ,proposes a design of the computer projection remote page-turner controller based on the HT82M99E,and the software decoding technology is applied. By testing, this technology can reduce chip quantity, reduce PCB area, reduce the cost of the hardware, and can ensure reliability of soft decoding.

scholarly journals Multi-Frequency Single Loop Passivity-Based Control for LC-Filtered Stand-Alone Voltage Source Inverter

Energies ◽  
2019 ◽  
Vol 12 (23) ◽  
pp. 4548 ◽  
Author(s):  
Xiaobin Mu ◽  
Guofu Chen ◽  
Xiang Wang ◽  
Jinping Zhao ◽  
Weimin Wu ◽  
...  
Keyword(s):  
Controller Design ◽  
Voltage Source ◽  
State Variables ◽  
Voltage Source Inverter ◽  
Modeling And Control ◽  
Single Loop ◽  
Control Scheme ◽  
Passivity Based Control ◽  
The Cost ◽  
And Control

The multi-frequency Passivity-Based Control (PBC) has been successfully applied in L-filtered power converters. For an LC-filtered stand-alone voltage source inverter (VSI), the mathematical model is second-order, where two state variables are used in modeling and control in conventional multi-frequency PBC controller, complicating the controller design and increasing the occupied resources both in hardware and software. In order to simplify the controller design and save the resources as well as the cost, a control scheme called multi-frequency single-loop PBC is proposed for the LC-filtered stand-alone VSI in this paper. The feasibility of the proposed control strategy is verified through the experimental results on a 3-phase/110 V/6 kW prototype.

scholarly journals Controller design of isolated power-electricity island using genetic algorithm

2019 ◽  
Vol 70 (1) ◽  
pp. 46-51
Author(s):  
Ivan Sekaj ◽  
Martin Ernek
Keyword(s):  
Genetic Algorithm ◽  
Cost Function ◽  
Controller Design ◽  
Control Design ◽  
Optimal Parameters ◽  
Control Error ◽  
Pi Controllers ◽  
The Cost

Abstract The contribution presents the use of Genetic Algorithm for searching of the optimal parameters of a set of speed controllers of an isolated power-electricity island. Nine PI-controllers are designed. The cost function which is minimised using the Genetic Algorithm represents the integral of the control error area. Robustness aspects of the control design are considered as well.

H∞ Controllers With a PID Structure

1990 ◽  
Vol 112 (3) ◽  
pp. 325-336 ◽  
Author(s):  
M. J. Grimble
Keyword(s):  
Optimal Control ◽  
Simple Form ◽  
Pid Controller ◽  
Transfer Functions ◽  
Controller Design ◽  
Design Procedure ◽  
Control Law ◽  
Pid Controller Design ◽  
Computational Procedures ◽  
The Cost

A review is given of the new H∞ Observations Weighted (HOW) optimal control law. The conditions under which the H∞ controller has a PID structure are identified and some implications for PID controller design are discussed. The simple form of this H∞ control law makes it easy to analyse and design. Examples are presented of the design procedure which involves the specification of the cost-function weighting transfer functions. The controller may be applied in applications where fast computational procedures are important.

Switched Tracking Controller Design for Uncertain Systems

2010 ◽  
Author(s):  
Ehsan Azadi Yazdi ◽  
Ryozo Nagamune
Keyword(s):  
Output Feedback ◽  
Uncertain Systems ◽  
Optimization Problem ◽  
Controller Design ◽  
Dynamic Output Feedback ◽  
Robust Controller ◽  
Output Feedback Controller ◽  
Tracking Controller ◽  
Dynamic Output Feedback Controller ◽  
The Cost

In this paper, a problem of designing a switched tracking dynamic output-feedback controller for uncertain systems is considered. The design problem amounts to solving an optimization problem, the cost function of which is neither smooth nor convex. By applying the proposed method to a nominal switched controller design methods, we designed a switched robust controller. Advantages of the method demonstrated through an example.

scholarly journals ASG Version of Integral Sliding Mode Robust Controller for AV Nonholonomic 2D Models Avoiding Obstacles

2021 ◽  
Author(s):  
Hector Vargas ◽  
Jesús Alberto Meda ◽  
Alexander Poznyak
Keyword(s):  
Cost Function ◽  
Controller Design ◽  
Sliding Mode ◽  
Autonomous Vehicle ◽  
State Variables ◽  
Robust Controller ◽  
Integral Sliding Mode ◽  
Strongly Convex ◽  
Current State ◽  
The Cost

Abstract In this work, a new robust controller is designed and analysed providing an autonomous vehicle, moving within a 2D - plain, with the ability to avoid collision with a set of obstacles despite of the presence of uncertainties in the Autonomous Vehicle (AV) with nonholonomic dynamic. The state variables (2 plain coordinates and 3 angles) and their velocities are assumed to be measurable. The controller design is based on Integral Sliding Mode (ISM) concept, aimed to minimize a given convex (not obligatory strongly convex) function of the current state. The subgradient of this cost function is also supposed to be measurable online. An optimization type algorithm is developed and analyzed using ideas of the Averaged Subgradient (ASG) technique. The main results consist in proving the reachability of the desired regime (non stationary analogue of sliding surface) from the beginning of the process and obtaining an explicit upper bound for the cost function decrement, that is, a functional convergence is proven and the rate of convergence is estimated, providing multiple obstacle avoidance. A numerical example depicts a good performance of the suggested hereby method.

The IBM-PC in electron microscopy

1996 ◽  
Vol 54 ◽  
pp. 612-613
Author(s):  
James F. Mancuso
Keyword(s):  
Head Start ◽  
Image Acquisition ◽  
Cost Effective ◽  
Financial Applications ◽  
Number Of Factors ◽  
Instrument Control ◽  
The Cost ◽  
Training And Support ◽  
Control Image ◽  
Ibm Pc

IBM PC compatible computers are widely used in microscopy for applications ranging from control to image acquisition and analysis. The choice of IBM-PC based systems over competing computer platforms can be based on technical merit alone or on a number of factors relating to economics, availability of peripherals, management dictum, or simple personal preference.IBM-PC got a strong “head start” by first dominating clerical, document processing and financial applications. The use of these computers spilled into the laboratory where the DOS based IBM-PC replaced mini-computers. Compared to minicomputer, the PC provided a more for cost-effective platform for applications in numerical analysis, engineering and design, instrument control, image acquisition and image processing. In addition, the sitewide use of a common PC platform could reduce the cost of training and support services relative to cases where many different computer platforms were used. This could be especially true for the microscopists who must use computers in both the laboratory and the office.

New Feasible Concepts of Aberration Correction for Realizing High-Resolution Electron Microscopes

1990 ◽  
Vol 48 (1) ◽  
pp. 202-203
Author(s):  
H. Rose
Keyword(s):  
Spherical Aberration ◽  
Wave Length ◽  
Electron Wave ◽  
Optical Lens ◽  
Resolution Electron ◽  
Rotationally Symmetric ◽  
Electron Microscopes ◽  
The Cost ◽  
Imaging Performance ◽  
Acceleration Voltage

The imaging performance of the light optical lens systems has reached such a degree of perfection that nowadays numerical apertures of about 1 can be utilized. Compared to this state of development the objective lenses of electron microscopes are rather poor allowing at most usable apertures somewhat smaller than 10-2 . This severe shortcoming is due to the unavoidable axial chromatic and spherical aberration of rotationally symmetric electron lenses employed so far in all electron microscopes.The resolution of such electron microscopes can only be improved by increasing the accelerating voltage which shortens the electron wave length. Unfortunately, this procedure is rather ineffective because the achievable gain in resolution is only proportional to λ1/4 for a fixed magnetic field strength determined by the magnetic saturation of the pole pieces. Moreover, increasing the acceleration voltage results in deleterious knock-on processes and in extreme difficulties to stabilize the high voltage. Last not least the cost increase exponentially with voltage.

An application: the cost of clinic care by undergraduate dental students and its relationship to clinic fees

1994 ◽  
Vol 58 (11) ◽  
pp. 832-835 ◽  
Author(s):  
ES Solomon ◽  
TK Hasegawa ◽  
JD Shulman ◽  
PO Walker
Keyword(s):  
Dental Students ◽  
The Cost

The effect of heliotherapy on the cost of psoriasis, p. 288

1998 ◽  
Vol 138 (2) ◽  
pp. 205-205
Author(s):  
Snellman ◽  
Maljanen ◽  
Aromaa ◽  
Reunanen ◽  
Jyrkinen‐Pakkasvirta ◽  
...  
Keyword(s):  
The Cost
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