Design of tidal level measuring system based on STM32

Tidal variation is one of the fundamental elements of the ocean. To address the problem of low accuracy in ocean exploration, this article introduces a tide gauge measurement system design based on STM32. The system uses the STM32 microcontroller as the control core, collects pressure and temperature data through high-precision ADC chips, and employs the Kalman filter algorithm to store the data in Flash memory. The results of the water experiment demonstrate that the system exhibits high accuracy and minimal error when compared to actual tidal data. At the same time, the phenomenon of “jumping point” in actual measurement is solved by fitting the mathematical model of tidal level data, which provides a more scientific theoretical basis for the field of tidal level observation.