抄録
This paper presents development of a system which measures a distance between two points in high places. The distance is calculated using 3-dimensional coordinates within each distance from measurement point measured by laser-sensor, and angles by an electrical pan-tilt unit. The device's accuracy is ±10mm per 10m at most. And more, the digital zoom-camera unit is attached to focus the measurement point semi-automatically. The camera unit makes it possible to take a photo of measurement target. A measurement results are stored as photos including the values of measurements. The upshot is improvement of efficiency at measuring and reliability of data.
