Avionics are the electronic components equipped on rockets. We develop various avionics, including induction control systems, electrical component systems, measurement communication systems and on-board inspection systems, and equip these on rockets. Moreover, in regards to the Epsilon Rocket, we developed an automatic/autonomous inspection system which will innovate booster systems, designed and developed ROSE (Responsive Operation Support Equipment) and LCS (Launch Control System), which uses mobile control devices, and facilitated the overall system.