Author: Page, S.T.
Paper Title Page
MOPMN004 An Operational Event Announcer for the LHC Control Centre Using Speech Synthesis 242
 
  • S.T. Page, R. Alemany-Fernandez
    CERN, Geneva, Switzerland
  
  The LHC is­land of the CERN Con­trol Cen­tre is a busy work­ing en­vi­ron­ment with many sta­tus dis­plays and run­ning soft­ware ap­pli­ca­tions. An au­di­ble event an­nounc­er was de­vel­oped in order to pro­vide a sim­ple and ef­fi­cient method to no­ti­fy the op­er­a­tions team of events oc­cur­ring with­in the many sub­sys­tems of the ac­cel­er­a­tor. The LHC An­nounc­er uses speech syn­the­sis to re­port mes­sages based upon data re­ceived from mul­ti­ple sources. Gen­er­al ac­cel­er­a­tor in­for­ma­tion such as in­jec­tions, beam en­er­gies and beam dumps are de­rived from data re­ceived from the LHC Tim­ing Sys­tem. Ad­di­tion­al­ly, a soft­ware in­ter­face is pro­vid­ed that al­lows other surveil­lance pro­cess­es to send mes­sages to the An­nounc­er using the stan­dard con­trol sys­tem mid­dle­ware. Events are di­vid­ed into cat­e­gories which the user can en­able or dis­able de­pend­ing upon their in­ter­est. Use of the LHC An­nounc­er is not lim­it­ed to the Con­trol Cen­tre and is in­tend­ed to be avail­able to a wide au­di­ence, both in­side and out­side CERN. To ac­com­mo­date this, it was de­signed to re­quire no spe­cial soft­ware be­yond a stan­dard web brows­er. This paper de­scribes the de­sign of the LHC An­nounc­er and how it is in­te­grat­ed into the LHC op­er­a­tional en­vi­ron­ment.  
poster icon Poster MOPMN004 [1.850 MB]  
 
MOPMS023 LHC Magnet Test Benches Controls Renovation 368
 
  • A. Raimondo, O.O. Andreassen, D. Kudryavtsev, S.T. Page, A. Rijllart, E. Zorin
    CERN, Geneva, Switzerland
  
  The LHC mag­net test bench­es con­trols were de­signed in 1996. They were based on VME data ac­qui­si­tion sys­tems and Siemens PLCs con­trol and in­ter­locks sys­tems. Dur­ing a re­view of ren­o­va­tion of su­per­con­duct­ing lab­o­ra­to­ries at CERN in 2009 it was de­cid­ed to re­place the VME sys­tems with PXI and the ob­so­lete Sun/So­laris work­sta­tions with Linux PCs. This pre­sen­ta­tion cov­ers the re­quire­ments for the new sys­tems in terms of func­tion­al­i­ty, se­cu­ri­ty, chan­nel count, sam­pling fre­quen­cy and pre­ci­sion. We will re­port on the ex­pe­ri­ence with the com­mis­sion­ing of the first se­ries of fixed and mo­bile mea­sure­ment sys­tems up­grad­ed to this new plat­form, com­pared to the old sys­tems. We also in­clude the ex­pe­ri­ence with the ren­o­vat­ed con­trol room.  
poster icon Poster MOPMS023 [1.310 MB]  
 
WEPMN008 Function Generation and Regulation Libraries and their Application to the Control of the New Main Power Converter (POPS) at the CERN CPS 886
 
  • Q. King, S.T. Page, H. Thiesen
    CERN, Geneva, Switzerland
  • M. Veenstra
    EBG MedAustron, Wr. Neustadt, Austria
  
  Power con­vert­er con­trol for the LHC is based on an em­bed­ded con­trol com­put­er called a Func­tion Gen­er­a­tor/Con­troller (FGC). Every con­vert­er in­cludes an FGC with re­spon­si­bil­i­ty for the gen­er­a­tion of the ref­er­ence cur­rent as a func­tion of time and the reg­u­la­tion of the cir­cuit cur­rent, as well as con­trol of the con­vert­er state. With many new con­vert­er con­trols soft­ware class­es in de­vel­op­ment it was de­cid­ed to gen­er­alise sev­er­al key com­po­nents of the FGC soft­ware in the form of C li­braries: func­tion gen­er­a­tion in libfg, reg­u­la­tion, lim­its and sim­u­la­tion in li­breg and DCCT, ADC and DAC cal­i­bra­tion in lib­cal. These li­braries were first used in the soft­ware class ded­i­cat­ed to con­trol­ling the new 60MW main power con­vert­er (POPS) at the CERN CPS where reg­u­la­tion of both mag­net­ic field and cir­cuit cur­rent is sup­port­ed. This paper re­ports on the func­tion­al­i­ty pro­vid­ed by each li­brary and in par­tic­u­lar libfg and li­breg. The li­braries are al­ready being used by soft­ware class­es in de­vel­op­ment for the next gen­er­a­tion FGC for Linac4 con­vert­ers, as well as the CERN SPS con­vert­er con­trols (MUGEF) and MedAus­tron con­vert­er reg­u­la­tion board (CRB).  
poster icon Poster WEPMN008 [3.304 MB]