| Deep-sea with vast and rich resources and the special political status of countries is increasingly becoming an important strategic area. Deep-sea detection especially in situ,real-time, continuous detection is the key to carry out deep-sea research and gain advantage in deep-sea resource competition. Presently,most technology of deep-sea in situ, real-time detecting is to aim at parameters of physical environment of the seabed. Situ, real-time analysis on chemical constituents of the seabed basically depends upon specific component of the development of sensors, and hence there is lackage of means of Chemical analysis for multiple undersea environment and multi-component material.The purpose of this thesis is to develop small-scale low-power-consumption situ Laser-Raman spectrum detection system for deep sea environment, which can be embarked to the underwater vehicle platform that processes situ analysis of a variety of deep seabed material chemical composition.The control system software is divided into two phases to develop and test . The first phase is to design control system and test the system in the shallow-sea environment and the laboratory;and the second phase is to develop deep-sea self-contained Laser-Raman spectrum control system, in which the design of hardware has been discussed in development team. Firstly,the paper introduces background and meaning of the control system,and then illustrates the detection principle of Laser-Raman spectrum,designing work of hardware and software respectively.In shallow-sea test,the control system is divided into above-water control subsystem and underwater data acquisition subsystem. The above-water control subsystem is connected with the underwater data acquisition through an 8-core cable,which monitors and controls the underwater data acquisition subsystem by RS485 bus, and communication protocol is based on MODBUS; The underwater data acquisition subsystem is based on the PC104 computer platform , using MSP430 to conduct auxiliary control and using humidity and temperature sensor to monitor and control humidity and temperature in the cabin. While the software of the whole control system is written by C# language.The results show that the control system can meet the needs of control and communication of underwater Laser-Raman spectrum detection.Based on the control system of swallow sea prototype,self-contained plotting is applied to deep sea control system,in which the entire plotting inherits the design framework of swallow sea prototype software platform and MODBUS protocol is utilized,meanwhile the function of video capture has been added.The software design is illustrated in detail while the hardware design is introduced.The development of shallow sea prototype is shown below:(1) Construct hardware platform for the underwater data acquisition subsystem and develop software of Laser-Raman spectra collection in PC104 computer.(2) Construct the software and hardware platform of MCU assistant control system and humidity and temperature data acquisition system.(3) Develop software for above-water control subsystem.The introduction of deep-sea control system is mainly shown below:(1) Construct the hardware for underwater self-contained system and develop software of Laser-Raman spectra collection in PC104 computer.(2) Construct the software and hardware platform for MCU control system.(3) Operate files in PC104 computer and develop software in host computer which controls MCU task package.
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