Here is a remote control system for accident monitoring that consists of an unmanned ground vehicle and drone. The all-terrain unmanned ground vehicle has a max speed of 60 km/h. It has a payload of 160 kg and runs for 5 hours. Combine it with the drone for aerial and ground monitoring.
The drone can use a wired power system to fly for an unlimited time. It has a flight range of 50m. This system was developed by Robot Lab, KAERI (Korea Atomic Energy Research Institute).