Multi-sensor Ocean Detection Buoy Integration Technology Design

China is rich in marine resources,and marine security is becoming increasingly important.With the emergence of marine detection buoys,it plays an increasingly important role in the maintenance of marine security.This thesis proposes a marine buoy that combines multiple types of sensors and wireless transmission can be realized.It can collect a variety of environmental data for target detection.A wireless communication system is designed for large amounts of data to realize the transmission of collected information.Working time,designed a power management system that can collect solar energy.In response to the needs of marine target detection,the hardware design of the data acquisition system is carried out,which integrates the sensor control circuit,sensor preamplifier circuit,AD module and so on.For the recovery of buoy data,a wireless communication system is designed,which is mainly composed of main control,wireless wake-up,power amplification,SD card,GPS and other modules.Aiming at the long-term work of solar energy collection and buoys,a power management system is designed.The hardware part is mainly composed of solar energy collection,battery charging monitoring and voltage conversion.According to the hardware solution of the buoy system,the software design of the data acquisition system is implemented to realize the initialization of each part of the circuit and the accurate collection of environmental information such as acoustic signals,magnetic signals and attitude data,and cooperate with the wireless communication system to realize data interaction.The wireless communication system is designed for low power consumption at the software level,including communication strategies and wake-up strategies.A power management strategy is proposed.Based on the current power of the battery and the output power of the solar panel,the acquisition mode is adjusted with the voltage conversion module to improve the power utilization of the buoy electronic system.Finally,to test the electronic system of the entire buoy.The data collection system can realize environmental information collection,and cooperate with the wireless communication system to achieve local storage and wireless transmission of collected data.The power management system also realizes the rational use of energy to ensure that the buoy works for a long time.Based on test results,the electronic system of the buoy can work stably and achieve the expected results.