Model generation device, prediction device, and program

An estimation device comprising:

• at least one processor;
• and
• memory storing instructions that, when executed by the at least one processor, causes the device to perform a set of operations the set of operations comprising:
• acquiring pipeline information including a location of a target pipeline and a number of elapsed years;
• acquiring a model that outputs a pipe thickness of a pipeline corresponding to the number of elapsed years for each element of a surrounding environment;
• and
• applying the pipeline information to the acquired model to estimate the pipe thickness of the target pipeline.

A computer-readable non-transitory recording medium storing computer-executable program instructions that when executed by a processor cause a computer to execute a program generation method comprising:

• acquiring inspection information indicating an inspection result of a pipeline;
• dividing the inspection information for each element of a surrounding environment of the pipeline;
• calculating a corrosion rate of the pipeline for each element of the surrounding environment;
• determining a pattern for each degree of the corrosion rate calculated by the corrosion rate calculation unit with respect to the divided inspection information;
• and
• generating, for each pattern, a model that outputs a pipe thickness of the pipeline corresponding to a number of elapsed years.