Patent ID: 7151247

Claim:
A mobile measurement system of a photoenvironment, comprising: measuring equipment for measuring the photoenvironment of a measurement object, a barrow for moving measurement on which the measuring equipment is mounted and which is driven by one wheel that contacts a travel surface, the measuring equipment having one or more photosensors and a photodata recording device that records data output from said one or more photosensors by detecting light with a position and a direction of detection of said one or more photosensors, the barrow having a rotation angle sensor which detects the rotation angles of the barrow around the mutually orthogonal three axes, a wheel revolution sensor which detects the revolution of the wheel, and a measurement position and direction calculating device that calculates the position and the direction of detection of said one or more photosensors in accordance with self-contained information of navigation from said rotation angle sensor and information of distance moved from said wheel revolution sensor, and transmits the results of the calculation to said photodata recording device.