Marine Buoy Power Management Strategy Research And System Inplementation

Marine buoys are important hydrologic and meteorological data collection equipment in marine research.Since marine buoys work far from land,buoys have always had difficulties in their ability to use energy for long periods of time.How to supplement the energy of ocean buoys in time,reduce unnecessary energy consumption,and prolong the effective working hours of marine buoys equipment have become an urgent problem to be solved.Based on this research,a power supply intelligent management system for marine buoys was designed.The paper firstly investigates the power management solutions and strategies of embedded systems in various fields.Then it analyzes the operational characteristics and functional requirements of marine buoys.Based on this,it proposes the ocean buoys from two aspects of hardware low power consumption and software strategy.The overall scheme of a power management system.The system uses MSP430F169 ultra-low-power,multi-operation mode MCU as the main control chip,and uses the bq25504 chip with milliwatt-level power acquisition and management function to collect solar energy and wave vibration energy,store it in a lithium battery,and use the MAX17049 chip for lithium.Battery power detection,through the low-power voltage conversion chip MP4350 and G0507 S to achieve voltage conversion,while the use of MOS tube load switch control.On the basis of hardware low-power design,the paper presents a dynamic power management scheme including operating system and load,operating system in multi-operation mode conversion,load according to the remaining battery power and functional requirements,in considering the power consumption and a single load weight factor After that,the work pattern that meets the current power and functional requirements is selected.The system has completed the design of hardware circuits for energy collection and storage,microcontroller control,power supply voltage conversion,load management and power detection.It also completes the modeling of dynamic power management strategies based on solar energy and wave energy collection for the power consumption and functional characteristics of marine buoys.,Screen out the optimal working mode for marine buoys.In the case of input of solar energy and wave vibration,the marine buoy selects a reasonable power management mode,and on the basis of satisfying the functional task,the effective working time of the system is greatly prolonged,and the efficient use of lithium battery power is realized.At the end of the thesis,the joint debugging of software and hardware was carried out,and the power management strategy of the system was evaluated.After testing,it can achieve the purpose of system power intelligent management.