Mobile IPv6 access method based on orbit information prediction

Abstract

The invention provides a mobile internet protocol version 6 (IPv6) access method based on orbit information prediction and mainly solves the problem that an asynchronous orbit spacecraft accesses to a measuring and controlling station in a mobile IPv6 mode. The mobile IPv6 access method for predicting based on the orbit information is adopted, and the access time between the spacecraft and ground base stations is predicted by comprehensive beforehand calculation of the orbit information of the spacecraft, the accurate location information of ground stations and the measuring and controlling coverage area. The spacecraft dominates the switching and access to the ground base stations according to the access time, a data link layer is firstly controlled to switch, and after the switching is finished, a network layer is triggered to begin to switch, thus finishing the switching of the spacecraft and having access to a new ground base station. In the switching process, frequent signal scanning and information interaction between the spacecraft and the ground base station are avoided, and the communication burden of the spacecraft is especially reduced.

Description

technical field [0001] The invention proposes a mobile IPv6 access method based on orbit information prediction, which mainly solves the problem that a non-synchronous orbit spacecraft accesses a measurement and control station in a mobile IPv6 manner. Background technique [0002] At present, my country's satellite, satellite-ground and ground transmission protocols have not yet been integrated. In remote sensing data transmission, at least two protocol conversions are required, while in business measurement and control operations, the number of protocol conversions is as high as 5 to 6 times. To this end, multiple protocol conversion devices need to be configured, and most of these devices are custom-made devices with complicated technical status, which reduces system reliability and operation and maintenance efficiency. [0003] The use of IP technology, which has achieved great success in the ground network, will promote the unification of aerospace measurement and cont...

AI Technical Summary

Problems solved by technology

[0004] Although IPv6 has fully considered the mobility characteristics of network nodes at the beginning of its design, in the case of complex space links, standard mobile IPv6 technology may cause false switching or ping-pong due to unexpected situations such as path loss and atmospheric loss. to switch

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