Design of Load Balancing Strategy of UAV Flight Control Software

For the UAV flight control software with complicated function and high real-time requirements, the static load sharing strategy and dynamic load balancing algorithm is designed by utilizing software bus which uses the flight control computer with distributed architecture based on CAN bus as a platform. In addition, the mechanism of function module migration is designed. These methods solved the declining operating efficiency and waste of resources which is caused by the load imbalance of nodes in the distributed flight control system and keeps the system performing efficiently and continuously. Finally, the result of experiments show that two types of load-sharing algorithm all can schedule the functional modules accurately and guarantee the real-time performance, also improved the reliability and security of the distributed flight control system.