Centralized-distributed avionics system of multistage solid carrier rocket

The invention provides a centralized-distributed avionics system of a multi-stage solid carrier rocket, and the system comprises all stages of avionics systems correspondingly arranged in all cabin sections of the multi-stage solid carrier rocket, and all stages of avionics systems are in communication connection; the avionics system arranged in the cabin section close to the head of the rocket comprises a flight control combination and an intelligent measurement and control combination; the flight control combination is in communication connection with each level of avionics system and is used for acquiring inertia information of each level of avionics system and controlling a servo system of each level of avionics system according to the acquired inertia information; the intelligent measurement and control combination is used for intensively collecting whole-rocket measurement and control information; each stage of avionics system is powered by an on-rocket battery, and at least two stages of avionics syste