Author: Labrenz, M.
Paper Title Page
WEPGF042 Scalable Web Broadcasting for Historical Industrial Control Data 790
 
  • B. Copy, O.Ø. Andreassen, Ph. Gayet, M. Labrenz, H. Milcent, F. Piccinelli
    CERN, Geneva, Switzerland
  
  With the wide-spread use of asyn­chro­nous web com­mu­ni­ca­tion mech­a­nisms like Web­Sock­ets and We­bRTC, it has now be­come pos­si­ble to dis­trib­ute in­dus­trial con­trols data orig­i­nated in field de­vices or SCADA soft­ware in a scal­able and event-based man­ner to a large num­ber of web clients in the form of rich in­ter­ac­tive vi­su­al­iza­tions. There is how­ever no sim­ple, se­cure and per­for­mant way yet to query large amounts of ag­gre­gated his­tor­i­cal data. This paper pre­sents an im­ple­men­ta­tion of a tool, able to make mas­sive quan­ti­ties of pre-in­dexed his­tor­i­cal data stored in Elas­tic­Search avail­able to a large amount of web-based con­sumers through asyn­chro­nous web pro­to­cols. It also pre­sents a sim­ple, Openso­cial-based dash­board ar­chi­tec­ture, that al­lows users to con­fig­ure and or­ga­nize rich data vi­su­al­iza­tions (based on High­charts Javascript li­braries) and cre­ate nav­i­ga­tion flows in a re­spon­sive mo­bile-friendly user in­ter­face. Such tech­niques are used at CERN to dis­play in­ter­ac­tive re­ports about the sta­tus of the LHC in­fra­struc­ture (e.g. vac­uum or cryo­gen­ics in­stal­la­tions) and give ac­cess to fine-grained his­tor­i­cal data stored in the LHC Log­ging data­base in a mat­ter of sec­onds.

 
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