On-Board Software (OBSW)

Alén Space

Alén On-Board Software (OBSW) is the result of several years of development and the accumulated experience of the team during operation of four satellites. The OBSW is based on the ESA Packet Utilization Standard (PUS). This allows to standardize the data interfaces of the satellites avoiding provider-dependent interfaces and allowing the deployment of different platforms/architectures reusing the same ground segment software. All of the provided services allow to design operations adjusted to client-specific scenarios without additional software development.

▪Core services of the OBSW based on ESA Packet Utilization
 ▪Event reporting of autonomous actions and anomalies
 ▪Housekeeping service for periodic parameters collection
 ▪Configuration parameters management
 ▪Real-time forwarding control
 ▪On-board telemetry storage
 ▪Scheduler for time-based operations execution
 ▪On-board request sequencing for operations automation
 ▪Telecommand execution verification
 ▪On-board time management
 ▪Memories management
 ▪Test service

▪Additional services included in the OBSW:
 ▪Recovery system, for reliable recovery on reboots.
 ▪Fault detection, recovery and isolation (FDIR)system for
  both software and hardware autonomous fault
  management (on agreed failures)
 ▪TMTC transfer layer based on CCSDS recommendations
  for reliable TM/TC channels
 ▪Autonomous payloads monitoring and data collection
 ▪Telemetry and payload data dump to files for ground
  retrieval (download)
 ▪Hardware services to manage platform subsystems and
  payloads based on PUS services foundation model.
 ▪Filesystem and file transmission protocol, FTP-like
On-Board Software (OBSW) spec sheet