**6. Conclusion**

The intelligent avionics system design is the key technology for future advanced satellites. The system design has adopted modular and open system architecture approach using an efficient computing hardware system to maintain multiple central processing units and memory executing instructions accurately and synchronously with high cost-performance and cost-efficiency ratio. This approach improves the failure tolerance of the next-generation avionics systems. The function modification capabilities and function migration between modules realize the transition to software-defined satellite. Furthermore, this approach also reduces the differences in hardware products and improves the failure tolerance of the satellite's internal network, which meets the ever-increasing networking requirements of the satellite.
