A nuclear magnetic resonance spectroscopy probe has a sample cell into and out of which a room temperature liquid sample may be directed. Each graphene island is a single crystal and every graphene island is of similar size. If a speeding violation is determined, a high-resolution image recording of the driver of the vehicle is generated. Recording is optionally accomplished using distributed recorders each making use of a virtualized browser. The interface includes a value-display area, a parameter-type area with several changeable symbols or texts, a parameter-unit area indicative of unit of the value, a statistics-mode area for providing inquiry into the electric power information at different period zones, and a functional-key area.