Author: le Roux, G.M.
Paper Title Page
MOD3O06 Interface Management for SKA Telescope Manager 68
 
  • P.S. Swart, G.M. le Roux
    SKA South Africa, National Research Foundation of South Africa, Cape Town, South Africa
  • A. Marassi, R. Smareglia
    INAF-OAT, Trieste, Italy
  • S. Roy Chaudhuri
    Tata Research Development and Design Centre, Pune, India
  • S. Vrcic
    NRC-Herzberg, Penticton, BC, Canada
  
  The Square Kilo­me­tre Array (SKA) pro­ject is cur­rently in the Pre-con­struc­tion Phase. Dur­ing this phase, the tele­scope sub­sys­tems are being de­signed. The Tele­scope Man­ager (TM) is a su­per­vi­sory con­trol and mon­i­tor­ing sub­sys­tem in each of the two radio tele­scopes of the SKA (SKA1-Low and SKA1-Mid). The TM in­ter­faces with a num­ber of di­verse tele­scope sub­sys­tems. In­ter­ac­tion be­tween TM and these sub­sys­tems is a major source of re­quire­ments for the TM. Care­ful man­age­ment of TM ex­ter­nal in­ter­faces is there­fore im­por­tant. This dis­cus­sion is a case study of TM in­ter­face man­age­ment. Firstly, how sys­tem ar­chi­tec­tural de­sign as­pects like sep­a­ra­tion of con­cerns in the con­trol hi­er­ar­chy re­duce tele­scope com­plex­ity with re­gards to in­ter­faces is dis­cussed. Sec­ondly, the stan­dard­i­s­a­tion ap­proach for mon­i­tor­ing and con­trol in­ter­faces to fa­cil­i­tate early elic­i­ta­tion of in­ter­face re­quire­ments for the TM, and to man­age the di­ver­sity of in­ter­fac­ing sub­sys­tems is dis­cussed. Thirdly, the re­la­tions be­tween in­ter­face de­f­i­n­i­tion and re­quire­ments analy­sis ac­tiv­i­ties, using SysML rep­re­sen­ta­tions as an ex­am­ple is dis­cussed.  
slides icon Slides MOD3O06 [2.612 MB]  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
WEPGF097 Local Monitoring and Control System for the SKA Telescope Manager: A Knowledge-Based System Approach for Issues Identification Within a Logging Service 930
 
  • M. Di Carlo, M. Dolci
    INAF - OA Teramo, Teramo, Italy
  • R. Smareglia
    INAF-OAT, Trieste, Italy
  • P.S. Swart, G.M. le Roux
    SKA South Africa, National Research Foundation of South Africa, Cape Town, South Africa
  
  The SKA Tele­scope Man­ager (SKA. TM) is a dis­trib­uted soft­ware ap­pli­ca­tion aimed to con­trol the op­er­a­tion of thou­sands of radio tele­scopes, an­ten­nas and aux­il­iary sys­tems (e.g. in­fra­struc­tures, sig­nal proces­sors, …) which will com­pose the Square Kilo­me­tre Array, the world's largest radio as­tron­omy fa­cil­ity cur­rently under de­vel­op­ment. SKA. TM, as an "el­e­ment" of the SKA, is com­posed in turn by a set of sub-el­e­ments whose tight co­or­di­na­tion is en­sured by a spe­cific sub-el­e­ment called "Local Mon­i­tor­ing and Con­trol" (TM.​LMC). TM.​LMC is mainly fo­cussed on the life cycle man­age­ment of TM, the ac­qui­si­tion of every net­work-re­lated in­for­ma­tion use­ful to un­der­stand how TM is per­form­ing and the log­ging li­brary for both on­line and of­fline sub-el­e­ments. Given the high com­plex­ity of the sys­tem, iden­ti­fy­ing the ori­gin of an issue, as soon as a prob­lem oc­curs, ap­pears to be a hard task. To allow a prompt di­ag­nos­tics analy­sis by en­gi­neers, op­er­a­tors and soft­ware de­vel­op­ers, a Knowl­edge-Based Sys­tem (KBS) ap­proach is pro­posed and de­scribed for the log­ging ser­vice.  
poster icon Poster WEPGF097 [7.145 MB]  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)