Corrosion amount estimation device and method

A corrosion rate estimation device for estimating a corrosion rate of a metal disposed in a predetermined environment, the device comprising:

• an input unit configured to acquire water component information from sensors embedded in the ground, the water component information including time-varying soil water content, temperature, soil pore-water conductivity, and dissolved oxygen, and soil-specific information including soil classification, soil texture, and depth;
• a learning unit configured to continuously train and update a machine-learning corrosion rate estimation model that differs by soil type, wherein the machine-learning corrosion rate estimation model is trained using both the water component information and the soil-specific information;
• and
• the corrosion rate estimation model configured to estimate the corrosion rate of a metal in a predetermined environment from the water component information and the soil-specific information without using electrochemical measurements of the metal.