Research Of Unmanned Vessel’s Data Transmission Based On Beidou Navigation Satellite System

With the continuous development of unmanned platform,navigation and intelligent control technology,unmanned drones and unmanned vessel has become a hot topic of current research in recent years.In the field of navigation,the pelagic navigation most depends on maritime satellite and the United States’ Global Positioning System as the main means of communication.At present,the communication technology developed rapidly whether in the traditional pelagic vessel industry or the rapidly developed communication technology for autonomous navigation nowadays.We need to grasp them in our own hands especially in the military area to avoid the dependence of other country’s satellite technology as a means of communication.So this essay researched and developed a data transmission system of unmanned vessel based on BeiDou Navigation Satellite System.The communication technology of the BeiDou Navigation Satellite System in our country is applied to the data transmission system of unmanned vessel in order to solve the problem that over-reliance of GPS in the data transmission of unmanned vessel.The system includes two parts.First,the development of data that automatic transmitted for vessel port.The transponder is used STM32 chip as MCU and connect to the Beidou positioning module,message sending module,user antenna equipment module in order to automatically extracting,packaging and sending unmanned vessel’s basic data and simple processing the message sent from the shore based software platform.Second,the development of the shore-base interface software platform that used for display.This platform used VS2010 development environment which based on the.NET framework.Then developing WinForm desktop application of c/s framework which is aim to analyze and monitor the unmanned vessel which including the basic parameters of unmanned vessel,obstacle avoidance parameter,the water environment parameters;the communication of the whole system adopted BeiDou positioning function.The main data transmission way is Beidou short message sending function.In order to overcome the short message communication channel’s limited upstream bandwidth and the limited number of transmission character,it presented a transmission protocolscheme which was reasonable to the data.Finally,by the online test of unmanned surface vessel port’s software and hardware and shore-based software monitoring platform,data transmit device of vessel port can realizedesigning functions.Shore-based port software monitoring platform interface can meet the needs and the data transmission system can meet the design requirements.This system with high market value provides a convenient and efficient way for data transmission of unmanned vessel and of great significance to civilian application of BeiDou Satellite Navigation system.