On-board data handling system for small satellites with autonomous event-triggered processing.
On-Board Data Handling System (OBDH)
On-board data handling system for small satellites with autonomous event-triggered processing.
Description
VECTRONIC Aerospace's On-Board Data Handling (OBDH) system processes direct and time-tagged telecommands and provides additional spacecraft autonomy through user-defined, event-triggered processes. It performs standard housekeeping data collection, supports configurable digital/analog I/O, and communicates over user-definable asynchronous serial interfaces on RS422/RS485 with adjustable baud rate up to 1 Mbaud. An optional redundant module configuration and umbilical/EGSE interfaces are available. Seven OBDH systems built on this design are currently operating in orbit.
Specifications
| Power Consumption | ~1.5 W |
|---|---|
| Signal Interfaces | User-definable asynchronous SCI on RS422/RS485 |
| Baud Rate | Adjustable, up to 1 Mbaud |
| Redundancy | Optional redundant modules available |
| Ground Support | Umbilical and EGSE interfaces included |