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The Research of Uninterrupted Power Management Systems for Ocean Cabled Observatory Network Node

Author: LiuYuLong
Tutor: ChenYing
School: Zhejiang University
Course: Mechanical and Electronic Engineering
Keywords: Deep sea Network Uninterrupted power supply MSP430F149 Visual C
CLC: P715.5
Type: Master's thesis
Year: 2008
Downloads: 134
Quote: 4
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Abstract


Energy is the lifeblood of the seafloor observatory network, energy seafloor observatory network will not be able to operate seafloor observatory network, each instrument run without electricity. Seafloor observatory network the underwater nodes Reserve Power Management system seafloor observatory network of underwater nodes uninterruptible power supply function can be achieved, to maintain sensor measurement data seafloor observatory network continuity and uninterrupted communication, uninterrupted operation of the seafloor observatory network has a very important role. This paper first analyzes the notebook and UPS uninterruptible power supply principle, so as to formulate the overall program and the basic function of the seafloor observatory network the underwater nodes Reserve Power Management system. The basic features include: uninterruptible power supply function down energy distribution function, voltage and current consumption monitoring function, battery temperature monitoring, control the charger switch the function as well as TCP / IP and RS-232 communication function . Uninterruptible power supply switching seafloor observatory network the underwater nodes reserve power management system hardware using TI's ultra-low-power signal processor MSP430F149, selected Schottky diode, optional DC / DC module down power allocation method acquisition function, using the partial pressure of the battery and the overall output voltage signal, with a Hall current sensor circuit composed of the acquisition battery charging current and the overall system output current signal, the selection of the battery temperature of the circuit composed of a negative temperature coefficient thermistor acquisition controlled by mechanical relays and optocouplers charger switches, optional serial port server TCP / IP communication functions. Developed using VC base station PC software in shore-based on the TCP / IP protocol and seafloor observatory network underwater nodes lower machine backup power system communication, the data received from the next-bit machine for processing and translation, display and store to SQL database, real-time monitoring of their work status, and when a system failure occurs, the deposit to the data in the SQL database can provide a reference for future diagnostic work. Finally, the experiment proved the feasibility of the system to prove the correctness of the design of the various modules. When the simulation backbone DC cut quickly through the Schottky diode switches to battery-powered, IPC connection box Windows2000 operating system was not affected, is still working properly; proved that the data stored in the database, switching transient network communication is working properly; voltage data stored in the database at the same time monitoring the change in output voltage to the switching instant, i.e. by the simulated backbone DC 27V is switched to the battery voltage is 24V. The experiments also provide reference and basis for further study and optimization of seafloor observatory network the underwater nodes Reserve Power Management system.

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CLC: > Astronomy,Earth Sciences > Oceanography > Marine survey and observation > Investigation and observation equipment > Underwater observation technology equipment
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