Safe and high-efficiency satellite data transmission system and data synchronization and transmission method thereof

Abstract

The invention relates to a safe and high-efficiency satellite data transmission system. The system mainly comprises a satellite ground main station, satellite communication stations and a satellite. The system is characterized in that the satellite communication stations are provided with hardware encryption modules; the satellite ground main station is provided with a hardware decryption module; there are the plurality of the satellite communication stations; a communication protocol adopted between the satellite communication stations and the satellite is a UDP protocol; and a communication protocol adopted between the satellite ground main station and the satellite is the UDP protocol. Through using the UDP protocol, data synchronization efficiency between the satellite communication stations and the satellite ground main station can be guaranteed and real-time data transmission between the satellite communication stations can be guaranteed too. The satellite communication stations are provided with the hardware encryption modules and are not provided with the decryption module so that a control right of the satellite ground main station to satellite communication station data can be guaranteed and safety of satellite data can be greatly increased.

Description

technical field [0001] The invention relates to a safe and efficient satellite data transmission system, which is a tool for encrypting satellite transmission data through a hardware encryption module and transmitting satellite data through a UDP protocol, belonging to the field of satellite communication. The invention also relates to a data synchronization method using the safe and efficient satellite data transmission system, through which the data safety synchronization of satellite communication can be realized. The invention also relates to a method for real-time data transmission using the safe and efficient satellite data transmission system. Through the method, the data security of real-time data transmission can be realized. Background technique [0002] At present, the satellite network transmits files through the tcp protocol. Due to the large delay and narrow bandwidth of the satellite network, the data transmission is very slow, which seriously affects the effi...

AI Technical Summary

Problems solved by technology

The voice transmission delay under the satellite network is large, and if the satellite link is not stable enough, it will seriously affect the communication between the two parties in the conversation

[0003] With the development of technology, satellite transmission files gradually begin to use UDP protocol for transmission. This transmission method can carry out instant message transmission, and the transmission speed is fast, the transmission data volume is relatively large, and unattended data transmission can be realized, precisely because of real-time data The problem of transmission causes the integrity of the data to not be guaranteed, and the situation of incomplete transmitted data often occurs, resulting in waste of channel resources. In severe cases, data transmission is not timely, which seriously affects the work of users. When transferring files, the security of instant messages and files is also difficult to guarantee, and it is difficult to use in the military or departments involving state secrets

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