| 摘要 |
<p>PURPOSE:To attain optical radio communication without complicated mechanical tracking mechanism and with low power consumption by irradiating a flat divergent luminous flux in a plane where an optical transmitter/receiver is moved. CONSTITUTION:A sectorial flat luminous flux 51 in parallel with a floor is sent from a station S1 to communicate a robot R. Since the luminous flux 51 is at the same height as the optical transmitter/receiver 2 on the robot R, even when the robot R is moved on the floor, communication is attained freely when the range is within the luminous flux 51. When a place where the robot is to be moved vertically such as a staircase exists in a plant, a sectorial flat luminous flux 52 along the staircase perpendicular to the floor is outputted as a station S2. Since the signal luminous flux is concentrated in flat to the moving plane of the mobile body such as a robot, the S/N of the light is improved and the power consumption for the optical output is saved.</p> |
