Satellite cluster self-organization networking method based on master-slave heterogeneous data transmission module

Abstract

The invention discloses a satellite cluster self-organization networking method based on a master-slave heterogeneous data transmission module. The method comprises the following steps that: in an initialization state, all nodes are set in a slave mode, and heartbeat information is transmitted; if a master node in a master mode is in a network at this moment, the master node senses the participation of a new node through a heartbeat message and allocates a heartbeat message transmission time slice, an election time slice and a transmission demand polling time slice for the new node; if the network has no master node at this moment, and a slave node in the slave mode cannot receive the heartbeat information of the master node, the networking process enters into a master node election state, each slave node divides the time slice according to an ascending order of addresses and automatically switches into the master mode; if the heartbeat information of the master node is received within a waiting time, the network has the master node, time of the network is synchronized with that of the master node, and the network participates in time slice polling and data transmission under coordination of the master node. The method provided by the invention has higher fault tolerance, robustness and flexibility, and improves viability of the self-organization network.

Description

technical field [0001] The invention mainly relates to the field of satellite formation methods in the field of satellite clusters, in particular to a self-organizing networking method for satellite clusters. Background technique [0002] Self-organizing network is a wireless network system in which communication nodes in the system are interconnected or organized through distributed protocols under the condition of lack of infrastructure, emphasizing the concepts of multi-hop, self-organization and no center. Self-organizing network has the characteristics of independence, distribution, multi-hop and mobility, and has broad application prospects in both civilian and military fields. [0003] Usually, the communication modules used in ad hoc networks are homogeneous, while star group networks often use a class of modules with master-slave heterogeneity. This type of wireless module usually has two modes: [0004] ①Main mode: The node in this mode is called the master node....

AI Technical Summary

Problems solved by technology

[0006] However, existing networking technologies, such as TDMA, FDMA, CDMA and ALOHA protocols, cannot be directly applied to this type of master-slave heterogeneous data transmission module

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