Introduction to LabVIEW 17.03.2010 |
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Hours/Week, Semester: |
Optional
course, 4 hours/week; 3rd semester Msc Mechatronics, SS 2010 |
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Summary of the syllabus: |
LabVIEW
is a flow chart oriented programming language for measurement acquirement and
processing including the visualisation of lab instruments. The course
concentrates on basics of LabVIEW and its
applications concerning data acquirement and communications by USB NI DAQ
boards, Ethernet (Internet communication) etc., furthermore on a RIO-System
with FPGA. |
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Examination: |
Written examination, 90 min |
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Prerequisites: |
Knowledge
of programming languages like C |
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Lecturer, ECTS credit allocation: |
Prof. W. Georgi, 5 credits |
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Teaching and learning methods: |
Lectures
with integrated practicals on PC |
Content:
Exercise
Part 1
Exercise
Part 2
Lessons
Part 1
1
Introduction
1.1 Introducing example
1.2 General concepts of LabVIEW
2
Operation, Control Structures
2.1 Operation
2.2 Control structures
3
Data types, Libraries, Commentaries
3.1 Data types
3.2 Libraries
3.3 Commentaries on programs
3.4 Hierarchy windows
4
Property and Invoke Nodes, Miscellaneous
4.1 Property Nodes, Invoke Nodes
4.2 Global Variables
4.3 Time functions
4.4 Options for starting and processing a VI
5
Fourier Analysis with LabVIEW
5.1 Fourier Analysis
5.2 Simulating sensor data for Fourier Transform
5.3 Graphical representation of data
5.4 Fourier Transform in LabVIEW
6
Working with the Fourier Transform
6.1 Non-periodic functions
6.2 Periodic functions, the Shannon Theorem
6.3 Hardware filtering
6.4 Windowing
6.5 Waveforms in LabVIEW
7
Some methods of data acquisition
7.1 File VI's
7.2 Programming the Serial Interface RS 232
7.3 Connections to Excel
7.4 Reports
8
Measuring Data Input/Output
8.1 DAQ Board
8.2 Driver, MAX, VI's
for Data Acquisition
8.3 Creating Tasks
8.4 Physical and virtual channels
8.5 Programming data acquirement VI's
8.6 Analog Output, DI/DO
8.7 Programmatic Task Development
8.8 USB-Device NI USB-6251
8.9 RSE, NRSE
9
Internet, General Considerations
9.1 Networks
9.2 Network Topologies and Protocols
9.3 Networks at the Fachhochschule
9.4 TCP/IP Protocol
9.5 OSI Model
9.6 Functions of the seven Layers in the OSI Model
9.7 Internet and Internet addresses
9.8 Computer Names
9.9 Repeater, Bridge, Hub, Switch, Router, Gateway,
Firewall
9.10 Internet services
10
Internet Program Examples
10.1 Some IP Addresses
10.2 A "Ping" Program
10.3 Server and Client
10.4 Programming with DataSocket
10.5 Programming with "Low Level" Functions
Lessons Part 2
11 Overview on Fourier-, Laplace-,
Z-Transform
11.1 Preparations: Dirac- and Step
function
11.2 Fourier Transform for non-periodic functions
11.3
11.4 Z-Transform
12 Applications
of Laplace and Fourier Transforms
12.1 Linear Differential Equations
12.2 Transfer Function and Frequency Response
12.3 Comparison of different Fourier Methods
12.4 Scanning a function by Dirac or rectangular pulses
13 Z-Transform,
FIR Filter
13.1 Analog filters, simple example
for a low pass filter
13.2 Examples for digital low pass filters
13.3 Z-Transform, Transfer Function
13.4 FIR-Filter
14 IIR Filter
14.1 Meaning of FIR and IIR
14.2 Deriving a digital filter from the analogous counterpart
14.3 Flow diagram for IIR
filters
14.4 Digital Butterworth Filters
14.5 Development of Digital Filters
15 Examination
of DAQ boards
15.1 Bus Interfaces
15.2 Analog Input (AI) scan
frequency
15.3 Digital channels, Counter / Timer
15.4 Accessories
15.4 Signal Conditioning
16 Simulation of
Control Systems
16.1 Reentrant Sub-VIs in LabVIEW
16.2 Application to a system of nonlinear differential
equations
16.3 Position control of a single robot axis. Disturbance
behaviour
16.4 Realisation of PID elements in
LabVIEW
16.5 Numerically realised Transfer Functions
17 References
and Data Types (not yet completed)
17.1 References
17.2 Type Descriptors
17.3 Flattened Data, Variant Data, Converting functions
17.4 A more sophisticated Example
18 Parallel
Processing, Interrupt Handling, Events in LabVIEW
18.1 While Loop Example
18.2 Occurences
18.3 Notifications
18.4 Semaphores
18.5 Events
19 External
Interfaces, e.g. via USB
19.1 CIN Nodes
19.2 CLF Nodes
19.3 Working with USB
20.1 Definition
20.2 Installation
20.3 Programming Examples
20.4 Projects, Xilinx VHDL Compiler
20.5 FPGA VI and calling VI on computers
Written by W. Georgi, last change: 14th of April 2010