A field test multi-party communication system and communication method

Abstract

A multi-party communication system and communication method for field tests, consisting of a network of multiple communication terminals based on digital transmission stations, each communication terminal is composed of a transceiver antenna, a digital transmission station, and a terminal computer; each terminal digital transmission station is set to a unified communication Link speed and communication frequency to realize message broadcasting; install special communication software on each terminal computer, the communication software complies with multi-party communication rules, and imposes timing constraints on all parties participating in the communication, so as to overcome the shortcomings of the half-duplex mode of digital transmission stations. Realize non-blocking instant messaging between multiple terminals. The invention can meet the requirements of multi-party real-time interactive transmission of test data and scheduling instructions in the field test, and has the advantages of small system scale, low cost, low power consumption, simple structure and strong applicability.

Description

technical field [0001] The invention relates to a design method of a field test communication system, which is based on half-duplex digital transmission station co-frequency networking, sends and receives messages according to specified rules, and realizes data sharing among multiple parties and instant communication of instruction messages. Background technique [0002] When some experimental activities are carried out in uninhabited areas such as the Gobi or the sea, it involves multiple terminals separated by hundreds of kilometers to communicate with each other in real time. At this time, traditional commercial communication services cannot cover or have little applicability, and can only coordinate the communication systems of leased troops, or ad hoc communication systems. The lease of the army's communication system requires numerous approval procedures, long coordination cycles and high costs. The general method of an ad hoc communication system is to select a voice...

AI Technical Summary

Problems solved by technology

The advantages of half-duplex digital transmission radio are low power consumption, long transmission distance, up to 100km or more, low price, and only cost tens of thousands of yuan; the disadvantage of digital transmission radio is that transceivers share a set of antennas, work in half-duplex mode, and have no information transmission By default, it is in the receiving state, and it cannot receive when sending. If there is no restriction, information leakage will occur; in general, digital radio stations are only used for one-way, or one-way interactive communication, while the outfield During the test, it is necessary to meet the free communication of more than three parties. Each communication party needs to share the test data obtained by itself with other communication parties in real time without interruption. At the same time, the parties need to carry out instant communication of instruction information

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