| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna control system that can simplify the structure of a whole device and restrain installation costs.SOLUTION: An antenna control system 33 comprises a clock time information generating source 96 for generating clock time information, and includes a primary side control device 83 for generating a rotation command signal Sb including speed V information at which an antenna body 21 should be rotated around an axis line J on the basis of a celestial sphere coordinate of a target celestial body at each clock time, and an antenna control unit 81 which is communicatively connected to the primary side control device 83, and controls rotation speed w of an electric motor 51 on the basis of the rotation command signal Sb transmitted by the primary side control device 83. The primary side control device 83 transmits an RTS signal generating a pulse per second on the dot to the antenna control unit 81, and also transmits the rotation command signal Sb to the antenna control unit 81 at a period T4, when transmission and reception are possible, set between seconds on the dot. The antenna control unit 81 performs control of the electric motor 51 based on the rotation command signal Sb in synchronization with the RTS signal. |
