Method for routing distribution of satellite channel

Abstract

The invention provides a method for routing distribution of a satellite channel. After an effective load device accesses a Spacewire bus network, a satellite conducts polling on the effective load device through a bus controller, reads an electronic data table at a load end and obtains data transmission rates of loads, then the bus controller compares any two channels of a plurality of obtained channel of effective loads or the sum of a plurality of data transmission rates with the transmission rate of a destination address A or the transmission rate of a destination address B, as per the principle that the load transmission rate in the Spacewire bus network must be lower than the transmission rate of the destination address A of a router or the transmission rate of the destination address B of the router, routing paths are distributed for loads according to the comparison results, after the routing distribution is finished, effective loads send data packets to the router through set transmission paths. By the aid of the method, the Spacewire bus based plug and play function of the satellite can be implemented, and the requirements of channel design of the Spacewire bus plug and play function can be met.

Description

technical field [0001] The invention relates to the aerospace field, in particular to a data transmission channel routing allocation method based on the Spacewire bus plug-and-play function. Background technique [0002] SpaceWire is a bus proposed by ESA based on two commercial standards IEEE 1355-1995 and IEEE 1596.3 (LVDS). By improving the reliability and power consumption of IEEE 1355, it can better meet aerospace applications. A bus standard dedicated to high-speed data transmission in space. It adopts a point-to-point connection structure, multiple buses can be used simultaneously in the same network, and the network topology has a high degree of freedom. And there is a dedicated connection between each device, so even if the data transmission speed of each connection between devices is not high, the data transmission speed of the entire network can be doubled by increasing the number of buses, and the single-line rate can reach up to 400Mbps. [0003] As a high-sp...

AI Technical Summary

Problems solved by technology

However, the current micro-channel routing design is not suitable for the plug-and-play function of the SpaceWire bus, which limits the application of the plug-and-play function of the SpaceWire bus

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