using remote and virtual laboratories in science and engineering in
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Sebastián Dormido, Luis de la TorreDpt. Informática y AutomáticaETS Ing. Informática, UNED
{sdormido,ldelatorre}@dia.uned.es
Using remote and virtual laboratories in science and
engineering in UNEDPart I and Part II
Workshop on Remote Experiments for HEThe Open University, Milton Keynes, UK
17th April 2015
Universidad Nacionalde Educacióna DistanciaMadrid
1. Experimentation environment2. A primer on EjsS3. A retrospective look4. A panoramic view of VL/RL in UNED5. Conclusions
Outline
Part 1
Part 2UNILabs demo: http://unilabs.dia.uned.es
Universidad Nacionalde Educacióna DistanciaMadrid
• UNED, the Spanish University for Distance Education, is the onlystate-run Spanish distance-learning university and it is the largest university in Spain.
• One of the largest European Universities with around 220,000 students, most of them adult students, and near 1,500 teachers.– Central organization: Madrid– 65 study centers: All over Spain– 13 study centers in Europe & America
• UNED focuses mainly on distance learning and continuous education.• It delivers degrees in most disciplines including Industrial
Engineering, Computer Science, Physics, Chemistry, Mathematics, Economis, Social and Political studies, Humanities, Arts ….
• UNED’s teaching methodology incorporates intensive and extensive use of e-learning resources including interactive video lectures, remote and virtual labs, e-learning platforms, learning objects, augmented reality, mobile devices, and biometrics.
1. Introduction1/61
Universidad Nacionalde Educacióna DistanciaMadrid
1. Experimentation environment2. A primer on EjsS3. A retrospective look4. A panoramic view of VL/RL in UNED5. Conclusions
Outline
Part 1
Part 2UNILabs demo: http://unilabs.dia.uned.es
Universidad Nacionalde Educacióna DistanciaMadrid
ACC
ESS
TO T
HE
RESO
URC
E
Local
Remote
A taxonomy
2. Experimentation environment
Universidad Nacionalde Educacióna DistanciaMadrid
Real Simulated
NATURE OF THE RESOURCE
A taxonomy
2. Experimentation environment
Universidad Nacionalde Educacióna DistanciaMadrid
RemoteLab.
WWWLab.
LocalVirtual Lab.
TraditionalLab.
ACC
ESS
TO T
HE
RESO
URC
E
NATURE OF THE RESOURCE
Loca
lRe
mot
e
Real Simulated
Loca
lRe
mot
e
Real
A taxonomy
2. Experimentation environmentS. Dormido “Control learning: Present and future”, Annual Reviews in Control, 28 115-136, 2004
Universidad Nacionalde Educacióna DistanciaMadrid
1. Experimentation environment2. A primer on EjsS3. A retrospective look4. A panoramic view of VL/RL in UNED5. Conclusions
Outline
Part 1
Part 2UNILabs demo: http://unilabs.dia.uned.es
Universidad Nacionalde Educacióna DistanciaMadrid
• EjsS is a free open-source tool developed in Java/Javascript designed for the creation of computer simulations.
• EJsS has grown to help in creating web-accessible (virtual and remote) laboratories:– Connections with external applications.– New features for 3D modeling.– New libraries and plug-ins to improve the development of VRLs– New experiment languages.– Etc,…
Easy Java/Javascript Simulations (EjsS)
• developed by Prof Francisco Esquembre, Murcia University (Spain)
• http://fem.um.es/Ejs
3. A primer on Ejs
Universidad Nacionalde Educacióna DistanciaMadrid
EjsS provides a simplified implementation of the Model-Control-View paradigm.
1. The model, which describes the phenomenon under study
2. The control, which defines certain actions that a user can perform on the simulation
3. The view, which shows a graphical representation of the different states that the phenomenon can have.
Control
Model View
tuxfx ,,
3. A primer on EjsS
Easy Java/Javascript Simulations (EjsS)
Universidad Nacionalde Educacióna DistanciaMadrid
12
21
sin xdt
dx
xdt
dx
21,,, xxdttBasic variables:
yx v,v,y,xVisualization variables:1x
yx,
yx vv ,
Dynamic model Constraints
1
1
cos
sin
xy
xx
12
12
sin
cos
xxv
xxv
y
x
3. A primer on EjsS
A simple example: A pendulum
Universidad Nacionalde Educacióna DistanciaMadrid
http://fem.um.es/Ejs/
3. A primer on EjsS
Users map of EjsS
Universidad Nacionalde Educacióna DistanciaMadrid
Some examples of virtual labs using EjsS
Particles collision Chain of oscillators Ball in a wedge
3 tanks system Ball and plate Ball and hoop
3. A primer on EjsS
Universidad Nacionalde Educacióna DistanciaMadrid
EJS Menu
EJS options
Read from a digital library
A new way of teaching, learning and share experiences
3. A primer on Ejs
Universidad Nacionalde Educacióna DistanciaMadrid
1. Experimentation environment2. A primer on EjsS3. A retrospective look4. A panoramic view of VL/RL in UNED5. Conclusions
Outline
Part 1
Part 2UNILabs demo: http://unilabs.dia.uned.es
Universidad Nacionalde Educacióna DistanciaMadrid
HyperAutomatica
1992 1992 1995
Repsol Course
Inverted pendulum VL
1992 1995 2000 1992 1995 2000
Inverted pendulum RL
4. A retrospective look
Universidad Nacionalde Educacióna DistanciaMadrid
DIA remote portal AutomatL@bs project
Uned-Labs portal
1992 1995 2000 2004 2006 2009
1992 1995 2000 2004 1992 1995 2000 2004 2006
4. A retrospective look
1992 1995 2000 2004 2006 2009
FisL@bs project
2011
Universidad Nacionalde Educacióna DistanciaMadrid
1992 1995 2000 2004 2006 2009 2011 2013
UNILabs portal
4. A retrospective look
Universidad Nacionalde Educacióna DistanciaMadrid
4. A retrospective lookThe structure of a VL/RL
Universidad Nacionalde Educacióna DistanciaMadrid
1. Experimentation environment2. A primer on EjsS3. A retrospective look4. A panoramic view of VL/RL in UNED5. Conclusions
Outline
Part 1
Part 2UNILabs demo: http://unilabs.dia.uned.es
Universidad Nacionalde Educacióna DistanciaMadrid
Three tanksDC motor Heatflow system
virtual virtual virtual
remote remote remote
5. A panoramic view of VL/RL in UNED
Control Engineering labs
Universidad Nacionalde Educacióna DistanciaMadrid
Quadruple tanksElectric drives Ball and hoop
virtual virtual virtual
remote remote remote
5. A panoramic view of VL/RL in UNED
Control Engineering labs
Universidad Nacionalde Educacióna DistanciaMadrid
Ball and plateBall and beam Flexible arm
virtual virtual virtual
remote remote remote
5. A panoramic view of VL/RL in UNED
Control Engineering labs
Universidad Nacionalde Educacióna DistanciaMadrid
Inverted pendulumFuruta pendulum Mobiles robots
virtual virtual virtual
remote remote remote
5. A panoramic view of VL/RL in UNED
Control Engineering labs
Universidad Nacionalde Educacióna DistanciaMadrid
Quadrotor
virtual remote
5. A panoramic view of VL/RL in UNED
Control Engineering labs
Universidad Nacionalde Educacióna DistanciaMadrid
Photoelectric EffectLight Diffraction Thin Lens
virtual virtual virtual
remote remote remote
5. A panoramic view of VL/RL in UNED
Physics labs
Universidad Nacionalde Educacióna DistanciaMadrid
Hooke’s LawSnell’s Law
virtual virtual
remote remote
5. A panoramic view of VL/RL in UNED
Physics labs
Universidad Nacionalde Educacióna DistanciaMadrid
1. Experimentation environment2. A primer on EjsS3. A retrospective look4. A panoramic view of VL/RL in UNED5. Conclusions
Outline
Part 1
Part 2UNILabs demo: http://unilabs.dia.uned.es
Universidad Nacionalde Educacióna DistanciaMadrid
• Virtual/remote experimentation is a maturetechnology.
• Yet, it is not easy to transform a traditional labinto a web-based lab.
• More research has to be done in providing newtools and new facilities.
• We have presented our approach using:– Easy Java Simulations to develop the interactive GUIs.– LabView and Matlab to develop the real-time control
loop at the server-side.– Moodle to deploy the web-based/remote labs.
• Last course was the fourteenth year of real experience
6. Conclusions
Universidad Nacionalde Educacióna DistanciaMadrid
Controller in the server sideController in the client side
New challenge in remote labs
6. Conclusions
Universidad Nacionalde Educacióna DistanciaMadrid
Thank you
for your attention
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