Autotracking control system of satellite communication station of offshore platform

Abstract

The invention discloses an autotracking control system of a satellite communication station of an offshore platform, comprising a satellite receiving system as well as a direction drive device and a pitching drive device respectively carrying out drive adjustment on the direction and pitching angles of antennas. The autotracking control system also comprises a control processing unit and a drive control unit for respectively controlling the direction drive device and the pitching drive device according to processing results of the control processing unit, wherein the control processing unit is connected with a beacon receiver in the satellite receiving system; the beacon receiver is a platform movement amount detection unit, and output signals of the beacon receiver are VAGC (Voltage Automatic Gain Control ) voltage signals with the signal strength of antenna beaconing signals; and the beacon receiver, the control processing unit and the drive control unit form an autotracking closed loop control system. The invention has the advantages of reasonable design, convenient wire connection, little improvement on the existing satellite tracking system, low cost and good using effect. The slow movement condition of the antenna platform can be detected according to the change condition of the VAGC voltage, and autoadjusting tracking process can be correspondingly finished so that the antenna always tracks the satellite.

Description

technical field [0001] The invention belongs to the technical field of self-tracking control of satellites by a satellite communication station on a slow-moving platform, and in particular relates to a self-tracking control system for a satellite communication station on an offshore platform. Background technique [0002] With the development of the satellite communication business, the international and domestic satellite communication business is increasing continuously, and various satellite communication earth stations for different purposes can be seen everywhere. The satellite communication earth station built on the offshore platform, due to the needs of the offshore platform operation, the offshore platform (that is, the antenna The platform) must often move slowly, so that the satellite antenna cannot be accurately aligned with the satellite, and it is difficult to receive satellite signals, which affects the normal communication between the antenna platform and the ...

AI Technical Summary

Problems solved by technology

[0002] With the development of the satellite communication business, the international and domestic satellite communication business is increasing continuously, and various satellite communication earth stations for different purposes can be seen everywhere. The satellite communication earth station built on the offshore platform, due to the needs of the offshore platform operation, the offshore platform (that is, the antenna The platform) must move slowly frequently, so that the satellite antenna cannot be accurately aligned with the satellite, and it is difficult to receive satellite signals, which affects the normal communication between the antenna platform and the shore command center

The satellite antenna on the antenna platform is a fixed manual antenna. The azimuth and elevation angles are all successfully debugged once, and will not change after being fixed. Therefore, when the offshore platform moves slowly, it will affect the satellite communication.

Based on the above reasons, the methods to solve the satellite tracking satellite on the offshore platform mainly include adding azimuth and elevation difference channel receivers and transforming the driving mechanism to turn the offshore platform into a rotating self-tracking system or a satellite communication earth station in motion, but the above two expensive way to do it

Images