Communication system for satellite vibration data transmission

The invention provides a communication system for satellite data transmission. The communication system comprises a monitoring unit and an acquisition unit, wherein a hardware interface between the monitoring unit and the acquisition unit comprises a +12V power supply interface and a bidirectional RS422 communication interface. The monitoring unit outputs a path of +12V voltage to control power supply to the acquisition unit, and output current capacity is not less than 1.2A; the monitoring unit and the acquisition unit communicate by adopting a three-wire system synchronous RS422 interface comprising gating, clock and data signals; the RS422 interface adopts a one-to-one connection form; and the types of communication data transmitted according to the timing sequence via the RS422 interface between the monitoring unit and the acquisition unit comprise time information, position information, control instructions, checking messages, telemetry information and remote sensing source packets. According to the comm