Software System Design And Realization For Deep Ocean Compact Automatic Raman Spectrometer

Ocean is becoming more and more important as a strategic area because of its extensive space, abundant resources and vital political status, competition in ocean exploitation is getting increasingly fierce. The key point in ocean probe is the ability of operating real time, in situ detection, so decision could be made based on the obtained first-hand information. Carrying out real time, in situ and continued detection, especially in extreme environment area, is the main development trend concerned by a few developed countries. Sensors based on laser spectroscopy technique are emerging devices that could be used in this application. Under the support of National High Technology Development 863 program of China, Ocean University of China carries out the research and development effort of Deep Ocean Compact Automatic Raman Spectrometer (Abbr. DOCARS). As a part of this work, this thesis emphasizes on the research and development of the software which is applied in DOCARS and realizes the functions of spectra detection, image acquisition and working environment monitoring.DOCARS comprises both hardware system and software system. The thesis introduces the research and development of the software system which aims at the system requirement and perfect matching with the hardware, it is upgraded according to the results of experiments carried out both in laboratory and on sea. The hardware system has three subsystems, they are controlled power supply subsystem, spectra detection and image requirement subsystem, singlechip subsystem. The controlled power supply subsystem, which includes deepwater battery, power converter, solid state relay and switching power supply, provides power for QE65000, industrial personal computer (IPC) and other devices. The working condition of QE65000, IPC and laser is controlled by microcontroller MSP430 which also monitors temperature and humidity inside the pressurized cabin. The QE65000 and camera are controlled by PC104 to obtain spectra and images. The software system is developed by C# language in Visual Studio 2005 integrated development environment, it is divided into two parts, above-water and underwater communication operating systems, in order to make DOCARS operates in auto working mode and interactive working mode separately.Before field test, a series of debugging must be made to make sure that DOCARS system could work normally. During the sea trials carried out in March and October of 2009, the function of this developed software system in the deep field experiment has been fully realized, and successfully brings the Raman signals and gets the photos of the system.Last but not least, a general discussion of the work and some suggests of possible future developments have been given in the last part of this thesis.