CAVU Aerospace UK Ltd

OBC1 Supervisor Board

Satellite OnBoard Computer

OBC-1 Supervisor

Associated Products:        OBC1       |        OBC1-Tester 

INTRODUCTION

The OBC1 onboard computer is designed with redundancy in mind, capable of operating in a configuration with another OBC1 board to ensure continuous and reliable performance. To enhance this redundancy, we introduce the OBC1-Supervisor. This essential component monitors and manages the active OBC1 boards, ensuring seamless operation and automatic recovery in case of malfunctions. The OBC1-Supervisor employs high-reliability logic circuits, making it a critical addition to mission-critical applications where uninterrupted operation is paramount.

KEY FEATURES

  • High-Reliability Logic Circuits: Utilizes Flash-based Actel FPGA without any processors, ensuring minimal failure points and robust performance.
  • Redundancy Management: Capable of configuring two OBC1 boards in a redundant topology, automatically switching between active boards in case of a malfunction.
  • Automatic Recovery Procedures: Efficient automatic recovery protocols to bring the faulty OBC1 board back online.
  • Current and I/O Monitoring: Monitors current and I/O control signals to detect and address issues promptly.
  • Pure Logic Monitoring Sequence: Runs monitoring sequences on pure logic, eliminating the need for software and enhancing reliability.
  • Enhanced Mission Reliability: Significantly increases the reliability of the OBC1 system, making it suitable for critical space missions.

TECHNICAL ADVANTAGES

The OBC1-Supervisor offers several technical advantages, making it a superior choice for enhancing the reliability of OBC1 systems:

  • Flash-Based Actel FPGA: The use of Flash-based FPGA technology reduces the risk of radiation-induced failures, a crucial factor in space environments.
  • No Processor Dependency: By avoiding processors and running pure logic sequences, the OBC1-Supervisor minimizes potential points of failure.
  • Real-Time Monitoring: Provides real-time monitoring and decision-making capabilities to switch between active OBC1 boards, ensuring continuous operation.
  • Efficient Fault Detection: Quickly detects faults through current and I/O monitoring, allowing for immediate corrective actions.
  • Robust Recovery Protocols: Implements robust automatic recovery protocols to restore faulty OBC1 boards without manual intervention.

MAIN SPECS

  • FPGA: Flash-Based Actel FPGA
  • Monitoring Features:
    • Current Monitoring
    • I/O Control Monitoring
  • Redundancy Management: Supports dual OBC1 boards in a redundant configuration
  • Automatic Recovery: Built-in protocols for automatic fault detection and recovery
  • Pure Logic Sequences: Monitoring and control sequences implemented in pure logic

ENVIRONMENT

  • Radiation Tolerance:
    • Total Ionizing Dose: 30Krad (Si)
    • Latch-up Immune
    • SEE @ 60MeV
  • Temperature & Pressure: -40 C to +85 C @ 10-8 bar
  • Shocks: 2000g, 2000-10000Hz
  • Random Vibrations: 14g(RMS) 3-Axis , 20~2000Hz

APPLICATIONS

  • Space Missions: Ensures reliable and continuous operation of onboard computers in satellites and other space vehicles.
  • Redundant Systems: Ideal for systems requiring high reliability and failover capabilities.
  • Critical Operations: Supports critical operations where system failures can have significant consequences.
  • Automated Recovery: Facilitates automated recovery in case of system faults, minimizing downtime and maintaining mission continuity.

BUDGET

  • Dimensions: 160x100mm
  • Mass: 70gr
  • Power Supply: 5V ±5%, Custom Range Available
  • Power Consumption: 0.4W