| 摘要 |
PROBLEM TO BE SOLVED: To provide a position-measuring device capable of determining a two-dimensional position of moving body in an indoor at a good accuracy without being influenced by a multi-path. SOLUTION: A position-measuring device for measuring a two-dimensional position of a plurality of moving bodies 2 moving on an indoor floor surface by identifying the respective moving bodies 2 is provided with a base station 12 and transmitting means 9, 10. The base station transmits an identification signal corresponding to a specific moving body 2 to all moving bodies 2 through the transmitting means 10. The respective moving bodies 2 are provided with a receiving means 13 and a light source 14 and the receiving means 13 receives an identification signal to judge whether or not the identification signal correspond to the own identification signal. In the case where the signal corresponds to the own identification signal, the light source 14 emitlight. The position- measuring device is provided with an image picking up camera 11 which picks up the image of the light emitting light source 14 of the moving bodies 2 and the picture is transmitted to the base station 12. The base station measures a position of the moving bodies 2 by corresponding a position of the picture to a two-dimensional position of the floor surface. |
