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Published byGerald Bridges Modified over 9 years ago
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Prepared by: Zorin Evgeny Today, everybody wants a dashboard. Like many newcomers to the technology scene, dashboards are sexy. Stephen Few, Information Dashboard Design.
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Objective Building different dashboards for different clients: LHC operation, cryogenic, est.. WEB published dashboard. Outcome To use LabVIEW-RADE To use the CERN web server
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Overview RADE data acquiring mechanism Dashboard data publishing Subscription, “get” function or read DB? Web publishing data mechanism Summary Next Steps
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CMW wrapper High speed Depends only on RDA realization Very few error during operation Direct access, no intermediate server Can crash LabVIEW JAPC Portability, based on http technology Central server DB access implemented Never crashes LabVIEW, but can stop responding DIP Built on DIM Direct access Relies on DIP name server Can stop responding
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LabVIEW Application RADE interface library FESA, DIP, JAPC, DB Equipment driver Equipment
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Modbus S7 SQL OPC JAPC CMW LHC Logging JPEG
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1.Subscription: Fast access to the last published data, synchronized with data source, but limitation for opening subscriptions (~1000). Can overload the front-end. 2.Get: fast access to data, but not all devices support get function and this function can overload the device. 3.Read Data base with JAPC toolkit –slow access (depends on DB). Dashboard Data archive used at startup DBFile
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Dumping screenshots or XML data ASCII file updating Technical network Public CERN network WEB, CERN server Third part visualization software HTML, JAVA script, WEB page DAQ DashboardASCII writer www.cern.ch/lhcdashboard http://te-dep-crg-oa.web.cern.ch/te-dep-crg- oa/Test%20V2/cryostatus.php www.cern.ch/lhcdashboard/cryo/cryoope.html
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Client applications LHC Dashboard (public), CRYO-Dashboard (cryo-team + public) We support and improve Dashboards Web publishing Status We use CMW, DIP and JAPC2LV technologies We develop new types of dashboards including 3D graphs We work on the stability of the application Error detection/correction Monitoring Auto-restart in case of crash
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Next phase – Make more interactive web application dashboard – Finish writing data in ASCII format for third party software – Use other technologies for data representation
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