Design of information display and control instrument based on SoC for AIS and GPRS monitoring system

Automatic Identification System (AIS) is a system that enables ships to exchange static and dynamic information about ships and navigation, such as position, course, name etc., automatically by VHF radio. GPRS monitoring system can trace, dispatch and navigate ships by GPRS network. They are the two main ways of monitoring the ships. However, the two systems are independent of each other with the result of the unrealized information sharing. In addition, AIS equipments used on ships are mostly imported owing to the absence of domestic products in China. This paper analyzes the communication protocol between the foreign AIS transponder and its monitoring terminal, and basing on the practical requirement, it also discusses the design of information display and control instrument in detail. The whole design accords with the request of AIS. Additionally, the paper researches data fusion from AIS and GPRS monitoring system to share information. The information display and control instrument realizes identifying surrounding ships and displaying the shipspsila information from GPRS monitoring system. During the hardware design of the instrument, great attention is paid to electromagnetic compatibility technology and optimizing the design to guarantee the reliability of the instrumentpsilas electrical characteristics.