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 RT 121 Fuzzy Control: Ball-on-Beam
 Technical Description

This model forms part of a series of training systems developed in collaboration with the Department of Automation and Information Technology at the Harz University of Applied Studies and Research.
This model provides an introduction to fast, digital real-time control by fuzzy methods.
Fuzzy methods are particularly suitable for processes which mathematics cannot describe adequately or easily. Fuzzy algorithms can offer major advantages as the control strategy is developed, not on the basis of exact mathematical modelling, but on a linguistic description of the process. Additional input variables or conditions can be easily added.
The control model employed is the familiar unstable Ball-on-Beam  system. The aim is to maintain a specific position of the ball by tilting the rocker beam. As well as the mechanical ball-on-beam system with servomotor and sensors, the model also includes a microcontroller board on which the control program runs in real time. The position of the ball is obtained using an optical measuring system; the tilt of the rocker beam is measured by a potentiometer.

Control algorithms are created, simulated and translated into microcontroller code in the user-friendly developer program.
The well-structured instructional material outlines the technological fundamentals and provides a step-by-step guide through the development processes.

Learning Objectives / Experiments

- Introduction to fuzzy methods and microcontroller

technology
- Mathematical modelling of the Ball-on-Beam

system

- Creating fuzzy strategies
- Implementing fuzzy algorithms on destination

microcontroller systems
- Adapting the algorithms to non-linear control

systems
- Parameter studies

 Features

* Mechanical model of Ball-on-Beam system1
* Mechatronic system with interlinking of mechanics,

electronics and data processing1
* Fast real-time control with microcontroller1
* Fuzzy algorithms1
* Microcontroller-based design process for process

control systems

 Alternative products
RT 122 -- Fuzzy Control: Inverted Pendulum
RT 123 -- Fuzzy Control: Ball-on-Plate
RT 124 -- Fuzzy Control: Carrier Vehicle with Inverted Pendulum
 Overview
RT 121 - RT 124 Fuzzy-Control Learning Models
 Specification [1] Training system providing an introduction to fuzzy methods and microcontroller technology[2] Ball-on-Beam system[3] Microcontroller board with interfaces[4] Servomotor for rocker beam drive[5] Non-contact position measurement system for the sphere[6] Serial PC port [7] FSH-Shell developer program[8] Didactically graduated teaching concept[9] 110...240V, 50/60Hz, 1 phase Technical Data Length of rocker: 1000mmZilog Z8Encore 8-bit microcontroller12x ADC 8-bitFSH-Shell software runs under Windows 2000/XP Dimensions and Weight l x w x h : 1000 x 400 x 400 mmWeight : approx. 25 kg Connections 110...240V, 50/60Hz, 1 phase Scope of Delivery 1 demonstration model with interface1 developer program1 set of instructional material Order Details 080.12100  RT 121  Fuzzy Control: Ball-on-Beam