| With the exhaustion of the oil and gas resources on land, ocean resources becomemore and more important for each country because of its huge storage capacity andpotential economic value. In recent years, Marine controlled-source electromagneticmethod (CSEM) becoming a hot spot of research in subsea oil and gas exploration.This dissertation originates from marine controlled-source electromagnetic detectionequipment development and theory research, supported by the National HighTechnology Research and Development Program (863, Grant No.2012AA09A201).The goal is to study of marine controlled-source electromagnetic detection technologyand development a set of equipment that can be used to explore subsea oil and gas. Inorder to break the foreign technology monopoly of China’s Marine resourcesexploration and breakthrough in some key technologies about Marine resourcesexploration.Compass/CTD data recorder is one of the equipment in Marine Controlled-SourceElectromagnetic Detection, it can automatically sample, process and transferenvironmental data and the equipment attitude under water. After the equipmentrecovered, analyzing the data of Compass/CTD data recorder and electromagneticdata recorder to identify the subsea oil and gas. Because of uncertainty about theposition of the equipment, and the resistivity of the water, sea water depth, watertemperature and other factors can affect the result, so the Compass/CTD data recorderis very important in Marine Controlled-Source Electromagnetic Detection.Compass/CTD data recorder use the ultra-low power consumption chipSTM32L151RBT6as the main controller. The system uses standard CF card to storedata, DS3231provide accurate clock information for the system, and the design ofGPS module can achieve an accurate calibration for multiple instruments. In order toreduce the power consumption of the system, it reduces the peripheral devices used.On the software, using IAP upgrade technology, realized the system software upgradewithout opening the shell. The low power design can provide the long hour system working. Manage the acquisition data, make its specification efficient storage in CFcard, and can be read by the PC.Finally, the function of system has been thoroughly tested to verify theeffectiveness and the stability of the system, and made a summary about the study,pointed out the problems in the research, and then put forward somerecommendations for the further improvement. |
