Control Software for the SST-1M Small-Size Telescope prototype for the Cherenkov Telescope Array

摘要

The SST-1M is a 4-m Davies--Cotton atmospheric Cherenkov telescope optimizedto provide gamma-ray sensitivity above a few TeV. The SST-1M is proposed aspart of the Small-Size Telescope array for the Cherenkov Telescope Array (CTA),the first prototype has already been deployed. The SST-1M control software ofall subsystems (active mirror control, drive system, safety system,photo-detection plane, DigiCam, CCD cameras) and the whole telescope itself(master controller) uses the standard software design proposed for all CTAtelescopes based on the ALMA Common Software (ACS) developed to control theAtacama Large Millimeter Array (ALMA). Each subsystem is represented by aseparate ACS component, which handles the communication to and the operation ofthe subsystem. Interfacing with the actual hardware is performed via the OPC UAcommunication protocol, supported either natively by dedicated industrialstandard servers (PLCs) or separate service applications developed to wraplower level protocols (e.g. CAN bus, camera slow control) into OPC UA. Earlyoperations of the telescope without the camera were already carried out. Thecamera is fully assembled and is capable to perform data acquisition usingartificial light source.