A solar-powered drone is developed to prolong the flying duration. Four wheels are attached to its bottom so it can move on the ground for lack of sunlight.Besides, a shell is installed around it to prevent it from getting damaged due to collision withbuilding wrecks, and a micro camera to take photos.An X-shaped quadcopter is chosen for its flexibility to move in different directions. It is then linked to solar panels through cables. A shell with a compatible size is also installed.
