Command message routing protocol based on Beidou communication link

Abstract

The invention discloses a command message routing protocol based on a Beidou communication link. A multicast command machine carries out top layer control. The multicast command machine controls a command machine B1 and the command machine B2 in a middle layer. The command machine B1 and the command machine B2 control subordinate users at lower ends. Multiple subordinate users are set. An output end of a broadcast command machine A1 is connected with an input end of a user machine A1a, the input end of the user machine A1b and the input end of the user machine A1c. The output end of the user machine A1a is connected with the input end of the command machine B1. The output end of the user machine A1b is connected with the input end of the command machine B2. The output end of the user machine A1c is connected with the input end of the command machine B3. The protocol makes up for the defects that a command relationship is single, layers are few and command functions are simple in an RDSS service; and the problems that in a practical use process, user group marshalling cannot be carried out flexibly and more than two levels of command relationships cannot be realized are solved.

Description

technical field [0001] The invention relates to the field of information technology, in particular to a command information routing protocol based on Beidou communication links. Background technique [0002] The Beidou satellite navigation system is a satellite navigation system independently developed and operated independently by my country, and can be compatible and shared with other satellite navigation systems in the world. The entire navigation system consists of three parts: satellites, ground control and management stations, and user terminals, covering the entire territory of my country and surrounding countries. It has functions such as positioning, navigation, and short message data communication. The development of science and technology has important strategic significance. [0003] The Beidou satellite RDSS service has the short message function that other countries' navigation systems do not have, which can realize position reporting in emergencies, and can al...

AI Technical Summary

Problems solved by technology

[0005] Constrained by the command relationship between users designed by the Beidou system, the command relationship that can usually be constructed is single. The existing command system only has a single-level command relationship of "command-user". To achieve an effective multi-level command relationship, directly rely on The existing Beidou technical system cannot achieve it;

[0006] Due to the limitation of the user capacity of the Beidou system, user services are restricted by the parameter of service frequency. As a result, the existing Beidou command system often requires multiple services when performing unicast to multiple users and multicast to multiple formations. It takes only one cycle to complete a batch of instructions, and the command efficiency is low;

[0007] Each ordinary user can only receive the broadcast information of one superior command user, and after the command relationship is established, it needs authorization to make changes, which makes it impossible for users to realize dynamic group command. Therefore, we propose a Beidou communication link-based Command Information Routing Protocol

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