With the rapid development of broadband communication technology, the mobile communication system using the portable terminal equipment as the carrier has become one of the most popular research and application areas. At the same time, with the development of satellite communication technology, the business scope is also expanding. In recent years, the fourth generation maritime satellite communications system which established by the Mobile Satellite Company has completed the satellite network deployment. It provides seamless global land, sea and air a full range of mobile communication services. Access-friendly Internet is provided by portable satellite terminal equipment for anyone at anywhere in anytime. Therefore, it is important to use satellite network as a communication platform between the mobile terminal (Client) and the control center (Server), design and implement an integrated communications system, and be used in monitoring of production safety, disaster prevention, earth quake relief work, ground observation and the command to deal with emergencies.
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