| The subject is derived from the national great technical equipment project of the Tenth five-year Plan, which is invested in by the Ministry of Communications and undertook by the Yangtse River Channel Office and Wuhan University of technology. The project is the research on self-navigated and harrow-sucked dredger which has the function of wash and volume of 300 m3. The dissertation mainly researches the development of remote monitoring technology, marine monitoring system, ship-shore communication system, onshore remote monitoring system and related techniques. The remote monitoring system of dredger machinery equipment based on wireless network is designed, which is composed of marine monitoring system, ship-shore communication system and onshore remote monitoring system.The marine monitoring system based on Virtual Instruments realizes online monitoring of machinery equipments in engine room and pump room on Lab VIEW and SQL Server 2000 platform by using Virtual Instruments technique and many monitoring means. The system builds data acquisition and communication network through PXI serial Data Acquisition Card, IPC and Ethernet. It provides the function of monitoring and controling through the Web Browser in captain room, main engineer room and driving room, and this will make convenient for the operators to operate and manage the system.The ship-shore communication system based on GPRS realizes the data transmission on VC++6.0 platform by using GPRS and SMS technique. The system uses Siemens MC35IT and TC35IT as GPRS and SMS modems. It logs on GPRS network through ship-shore communication program, sends marine monitoring data to onshore system which accesses Internet with invariable IP and receives onshore working files. It ensures that the fault could be dealed with by giving an alarm to the onshore watches through SMS as soon as possible.The onshore remote monitoring system based on Web realizes the monitoring function of dredger machinery equipment by using ASP, ADO and ActiveX technique. The system adopts three layers B/S mode which is composed of Web Browser, Web Server and Database Server. It provides the working situation of dredger for the onshore watches and technical support and maintenance proposal for the marine operators immediately.It has been proved in practice that it is an inevitable trend to build the remotemonitoring system of dredger machinery equipment based on wireless network and do research on marine monitoring system, onshore monitoring system and their interconnection and data transmission according with the development of wireless network and modern shipping technology. |
