| Sea trail test is the important part before new ships being sold. The propose of sea trial test is to test the performance of new ship and give some useful references to the ship designers. Now a days, with the development of shipbuilding manufacture, the production of new ships is substantially increased which expose the defects of traditional sea trial test system restricted the progress of sea trial test technologies by its poor stability and data insecurity. Along with the development of the communication and computer technologies, developing a new sea trial test system is the only way to solve this problem. The new sea trial system get the ship locating position by GPS and then show the position information on the display interface. The sea trial staffs can get the sea trial reports with track map from the system.This paper applies GPS and computer software design technology, takes sea trial test as the design basis, constructs a new GPS sea trial test system. First of all, the development status of sea trial test and implementation techniques at home and abroad are deeply analyzed. On this basis, the system design which adopt GPS technology with MFC, SQL databases and Google Map is proposed. The sea trail test system architecture, organization model and functional design are introduced. In addition, MFC multithreading、SQL Sever database and ODBC technology are adopted to achieve the GPS serial communication and data storage part of the whole system, includes serial communication, database and data calling. Furthermore, with MFC visualization programming and Google Map API, the human-computer interface and track map drawing are also achieved.In example of sea trial test system simulation, the system is simulated completely and subtly, it achieved almost all part of the system including GPS serial communication data processing data storage、human-computer interface、Google Map part and track map drawing. Moreover, the performance of system satisfied the demands of system designer. |
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