| 摘要 |
PURPOSE:To decrease the number of optical terminal equipments on a fixed station, to make the equipment economical, and to improve efficiency and reliability by regulating the light incoming/outgoing angle of the optical terminal equipment according to the output of a position detector based on an orbit position set beforehand and the correlation data of mutual position of both pieces of the optical terminal equipment. CONSTITUTION:Based on a position detector 8 to detect the position on an orbit 1 of a mobile body 2, and the correlation data of the mutual position of both pieces of the optical terminal equipment 4 and 6, an angle regulator 7 to regulate the light incoming/outgoing angle of the optical terminal equipment 4 and 6 according to the output of the position detector 8 is provided. In such a way, the position detector 8 always detects the position of the mobile body 2, sends a signal to the angle regulator 7, the angle regulator 7 specifies the optical terminal equipment 4 on the fixed station side to be a transmission object from the position signal, and calculates the light incoming/outgoing angle of the optical terminal equipment 4 and 6 from the mutual position of the optical terminal equipment 6 on a mobile station side. Further, the light incoming/outgoing angle of the optical terminal equipment 4 and 6 is regulated by the output, and the communicable condition between both pieces of the optical terminal equipment 4 and 6 is maintained. Thus, the necessary number of the optical terminal equipment 4 and 6 can be decreased, and the economical and highly reliable spatial light transmission equipment can be obtained. |
