Real-time radio signal mapping using an autonomous robot

A measurement technique for an indoor/outdoor radio signal mapping based on remote sensing through a mobile robot is provided. The robot is autonomous and able to provide its actual location in relation to its initial position. The data are sent in real time to the base station using wireless transmission and the electromagnetic mapping is obtained in real time as well. A real case scenario is considered by measuring the electromagnetic field from our department network. The automated system gives consistent results since it shows highest energy levels next to the sources. This papers shows that a robot can remotely make a precise radio signal mapping of an unknown environment, which is useful for projects with RF energy harvesting purpose.