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DESIGNOFPRACTICALACTIVITIESINELECTRONICSUSINGVISIR
REMOTELABORATORIES
MohamedTawfik,ElioSancristobal,SergioMartín,CharoGil,PabloLosada,GabrielDíaz,ManuelCastro
ElectricalandComputerEngineeringDepartmentSpanishUniversityforDistanceEducation‐UNED
Background
• VISIR is a remote laboratory for wiring and measurement of electric and electronic circuits on a bread board.
Background
• The Signal Processing Department ASB at Bleking Institute of Technology(BTH) in Sweden together with National Instruments in USA (as a supplierof instruments) and Axiom EduTECH in Sweden (as a supplier ofeducation, technical software, and engineering services for noise andvibration analysis) have launched the Virtual Instrument Systems inReality (VISIR) Project by the end of 2006.
• The project was financially supported by BTH and the SwedishGovernmental Agency for Innovation Systems (VINNOVA).
VISIR(VirtualInstrumentSystemsInReality)
TraditionalElectronicLaboratory
PXIPlatform
=
=
PXIPlatform
RelaySwitchingMatrix
OSCI CH1
OSCI CH1
Components
DMM LOW
DMM HIGH
FGENA
DC Power Supply
Relay Switching Matrix
Commands
RelaySwitchingMatrix
A
0
B
COM
C
X1
D
X2
E
X3
F
X4
G
X5
H
X6
I
=
RelaySwitchingMatrix
RelaySwitchingMatrix
OperationCycle
Equipment server
Measurement server(Visual C++)
DatabaseMySQL
Web ServerApache
HTTPSHTTPXML
TCP/IP
HTTPXML
TCP/IP
HTTP
TCP/IP
Max Lists Component List
Equipment server softwareLabVIEW
WebPage(php and Flash)
PXI Platform + Relay switching matrix
User Interface
VirtualWorkbench
Virtualworkbench
Implementation
So far, 7 universities and institutes have already implemented a VISIR :
• Bleking Institute of Technology (BTH).• Carinthia University of Applied Sciences. • FH Campus Wien University of applied sciences.• Polytechnic Institute of Porto (ISEP).• University of Deusto.• Spanish University for Distance Education (UNED).• Indian Institute of Technology Madras (IIT‐M).
Implementation
InternationalAssociationofOnlineEngineering• One important objective of theVISIR project is to create a labcommunity consisting of all theparticipant universities andorganizations. Consequently, itwould be possible to create a gridlaboratory where the nodes areonline lab workbenches distributedamong those universities. Thiswould allow sharing lab recoursesand sharing online workbenches.
• The IAOE have created the VISIRSpecial Interest Group (SIG VISIR)
VISIR‐LXI• University of Deusto is developing a new
LXI‐based VISIR system, in which all theinstruments are replaced with IVI driversinstruments (instead of NI) and LXIcomplaint.
• The aim is to:1. Use standards devices, not proprietary
solutions2. reduce the cost of the PXI instruments.3. Use a commercial switching matrix and
not a proprietary one.4. increase the system flexibility.5. permit the system integration into
WebLab‐Deusto architecture, whichwould make it easily integrated to anLMS.
VISIR‐iLab• The System EngineeringDepartment at Carinthia Universityof Applied Science together withBTH are working on the integrationVISIR into ISA framework to provideusers form iLabs Community thepossibility of deploying and usingVISIR in their ISA framework and totake the advantages of the servicesprovided by ISA. This integrationallows sharing of VISIR with a highload capacity in an efficient way.
VISIR‐LMS
• The Electrical and computer engineering department at UNED isresearching into the integration of the services provided by the VISIRinterface with those provided by LMS. By this way, users could access toVISIR through the LMS with a single sign‐on and every account type inthe LMS (teacher, student, administrator, etc.) would have the sameprivileges of its equivalent account type in VISIR interface.
VISIR‐LMS
• A module to add laboratories has already been created forMoodle.
• The next step is to communicate this module with VISIR byweb services.
VISIR‐LMS
• A module to add laboratories has already been created forMoodle.
• The next step is to communicate this module with VISIR byweb services.
VISIR‐LMS
• VISIR in Moodle (embedded in HTML)
MohamedTawfik,ElioSancristobal,SergioMartín,CharoGil,PabloLosada,GabrielDíaz,ManuelCastro
ElectricalandComputerEngineeringDepartmentSpanishUniversityforDistanceEducation‐UNED
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