Autonomous Meteorological buoy

Instrumentation Viewpoint / 7 / Winter 4 tant parts was carried out, a suitable material for the body was chosen and a calculation for improving floatability was carried out. VII. CONCLUSIONThe base for an AMB was constructed.According to the power supply detailed research for suitable solutions was carried out.Supplying an autonomous buoy with independent power supply is not a common task and needs a lot of additional knowledge.Special, maintenance free, reliable and long term components had to be found or to be developed.The solution with the fixed converters and the parts which can be turned off keeps the design easy and saves energy.When the needs of the sensors and auxiliary circuits finally will be defined, it can be adapted easily with other components.Transmitting data via IRIDIUM connection is a good solution for this application.The data volume collected by the buoy does not demand high transmission velocity and therefore the SBD satisfies the needs.With this type of communication setup additional data as the position and the precise time can be obtained with one device.The modem can be controlled with the μC through RS232 connection.Further developing includes addition of a memory to buffer data.Then the iridium modem can be put into sleep mode and this would help to save energy.The plug and play sensor network makes it easy to add new sensors.The board for the bus connection can be expanded because it uses RJ45 connectors which provides power supply for every sensor and mixed mode interface.The number of sensors is just limited by the analogue inputs of the μC and the size of the SBD message.With the CAD 5 connectors a widely used connection was created.To improve the operation of the sensor network all the resources of the Subsea sensor should be used as for example getting the sound velocity and real time and date.Data monitoring with LabView was enabled.The relevant data can be extracted