|
Metadata for Laser Display L3S Nils Faltin, L3S Version |
WP Online Experiments |
Introduction
The work package “Online Experiments” in PROLEARN[1] will build a knowledge base of online experiments. It will be a catalogue describing online experiments used for educational purposes. Catalogue entries follow the metadata schema defined in the document “Metadata for Online Experiments Specification.doc”.
Read more at http://www.prolearn-project.org/articles/wp3/a0000058.html
This document is an example of a catalogue entry for an online experiment. It describes a laser display device located at the L3S.
General educational material attributes
These attributes are contained in the EducaNext catalog (http://www.educanext.org). Search for educational material with title “Laser display”. Or use the direct link: http://www.educanext.org/ubp/PUSH/srchDetailsLR?lrID=lr-univa-nilsfaltin-1087826969913
Specific Online Experiments attributes
Extension of general description
The experiment is documented extensively on the web pages. Documentation comprises the areas:
- Block diagram and photo of experiment hardware
- Embedded system TAVA/104 and I/O-Card
- Galvanometer scanner, laser and photo sensor
- Experiment environment (tele-presence, programming, communication)
- Manual control and photo sensor measurements
- Applet to measure speed (Dynamic Test)
- Task manager
- Synchronous shared text editor
- Desktop sharing with TightVNC
- Real time operating system JBED
- Laser graphics library VGLaser
- Library to access I/O-Card IO-Bib
- Java development environment JDK
Several tasks have been written for the experiment. In parentheses the average work time (without documentation reading) is given.
- Selecting and starting existing Java methods (10 min)
- Measuring the speed of the galvanometer scanner (15 min)
- Writing a real time program to find the photo sensor (3h)
- Writing a program for self-designed animation (2h)
- Writing a program for a given simple animation (2h)
- Extending the laser graphics library with classes for characters and strings (2h)
The experiment has been used in several classes at the University of Hannover with students from computer science and electrical engineering. Students worked four hours with the experiment in groups of two or three persons with the assistance of a tutor. They worked on the following tasks:
- Laboratory for process control, summer term 2003, tasks 1-4. Students could put an emphasis on task 3 or 4.
- Laboratory to the class “programming in Java”, winter term 2003/2004, tasks 1,2,5 and 6. The last task was optional.
- Laboratory for process control, summer term 2004, tasks 1-4. The last task was optional.
Experiment types
Experiment component types contained (Checkbox-List):
- virtual experiment component: NO
- remote experiment component: YES
- local experiment component: NO
Access to Internet based experiments
Checkbox-List:
- Internet based services (The experiment is offered through a server over the Internet): YES
Availability
Radio button list:
· Continuously: YES
Interaction mode
Radio button list:
· synchronous: YES
Number of Setups
- Number of Setups: 1
- Number of active users per setup: 1
- Number of passive users per setup: 3
- Allocation policy: “-”
Reservation for synchronous experiments
Radio button list:
· Online Reservation: YES
Guest access
Guest access available: YES
Terms of use: “One hour maximum connection time.”
Associated documents
Documents available
|
|
|
|
Abbreviation |
OE web pages |
|
Title |
Laser Display Online Experiment web pages |
|
URL |
|
|
Description |
- |
|
|
|
|
Abbreviation |
STTS article |
|
Title |
Synchronous Tele-Tutorial Support in a Remote Laboratory for Process Control (STTS article) |
|
URL |
http://www.l3s.de/i_labs/docs/ICEE_Innovations_2004_Synchronous_TT_Support_pp.pdf |
|
Description |
Scientific Article (Book chapter). Source: Böhne, Andreas; Faltin, Nils; Wagner, Bernardo: “Synchronous Tele-Tutorial Support in a Remote Laboratory for Process Control”, pp. 317-329 in: "INNOVATIONS 2004: World Innovations in Engineering Education and Research", edited by Win Aung (et al.), ISBN 0-9741252-1-0, June 20, 2004. |
Information categories contained in Documents
|
|
OE web pages |
STTS article |
|
Information for visitors |
|
|
|
User interface screen shot |
X |
X |
|
Demonstration of typical session |
|
|
|
Scientific article |
|
X |
|
Information for students |
|
|
|
Theoretical and scientific background of experiment |
X |
|
|
Usage modes and usage manual |
X |
|
|
Educational tasks |
X |
|
|
Information for teachers |
|
|
|
Usage reports |
|
X |
|
Educational Evaluations |
|
X |
|
Information for experiment developers |
|
|
|
Technical realization |
X |
X |
|
Framework used |
|
|
|
Membership in Experiment Network |
|
|
|
Project context |
X |
X |