A. Vascotto - 15 December 2003ALICE Technical Board2 Field of application of the ECS is the two-dimensional control space of the experiment. Activity domains: fields of activity requiring an automatic control. Examples: trigger, DAQ, HLT and detector infrastructure (power supplies, fluids, cooling). Each controlled by an online system. View of the system designer. Detectors: operational units, either isolated or joint in partitions. View of the detector designer and the operator TDR highlights
A. Vascotto - 15 December 2003ALICE Technical Board3 TDR highlights (2) ECS scope: –Creation of the partition environment, where online systems run independently. –Coordination of the online systems within a partition. ECS policy: Minimal impact on the online systems. Independent development, independent operation. Conventional object-oriented interface/communication, based on SMI++.
A. Vascotto - 15 December 2003ALICE Technical Board4 ECS Architecture ECA Database Partition 1 Trigger DAQ PCA DCS Partition 2 PCA Detector ADetector B Trigger DAQ DCS Detector CDetector D HLT
A. Vascotto - 15 December 2003ALICE Technical Board5 Activities in 2003 TPC – Discussion on requirements on operating modes. DCS –Discussion on architecture of FERO calibration systems. Trigger HMPID
A. Vascotto - 15 December 2003ALICE Technical Board6 Trigger Frequent meetings and discussions. Agreement on control interface. Collaboration on control-architecture definition. Work progressing well. People involved: Anton Jusko Roman Lietava Orlando Villalobos Baillie
A. Vascotto - 15 December 2003ALICE Technical Board7 HMPID ECS prototype driving DCS, DAQ and Trigger, used at the test beam. DCS: control of HV and LV, implemented on Windows. The ECS uses the native access control of the DCS. Trigger implemented on VME, controlled by the ECS. DAQ: DATE upgraded to fulfil the ECS interface. –Implementation of compatible access control. –Decoupling the HI from run control. –Implementation of SMI objects representing the run control. FERO calibration performed by the ECS through the DDL, as a sequence of commands to trigger and DAQ, depending on the state of trigger, DAQ and DCS. People involved: Giacinto de CataldoPaolo Martinengo Ervin DénesCsaba Soos Antonio Franco
A. Vascotto - 15 December 2003ALICE Technical Board8 PCA HMPID Used during the October-November 2003 beam tests.
A. Vascotto - 15 December 2003ALICE Technical Board9 Next steps Continue development. –Trigger –Partitions –Database Test in the lab a prototype for the TPC, in collaboration with the DCS and TPC groups. Prototype ready for the test & commissioning of the TPC at Point 2 (end 2004). Development of the prototype for the ITS, joint tests in the lab of SPD, SDD and SSD.