Tire state management system and tire state management program

A non-transitory computer readable medium including a tire state management program for estimating the damage progress speed of damage generated on the outer surface of a tire and managing the state of the tire, the tire state management program causing a computer to execute:

• an image data acquisition processing for acquiring first image data acquired by imaging the outer surface at a first timing and second image data acquired by imaging the outer surface at a second timing later than the first timing;
• a damage portion acquiring process for acquiring a first region of localized damage included in the first image data and a second region of localized damage included in the second image data, the first region of localized damage being associated with the second region of localized damage;
• a vehicle operation information acquiring process for acquiring operation information of a vehicle on which the tire is mounted, said operation information including operation history and operation schedule;
• a maintenance prediction processing for estimating the damage progress speed based on a size of the first region of localized damage included in the first image data and a size of the second region of localized damage included in the second image data, and predicting the maintenance timing for the tire based on the damage progress speed and the operation information;
• wherein the maintenance prediction processing predicts a use limit timing at which the tire reaches a use limit based on the damage progress speed and the operation information;
• and
• an alarm output processing for outputting an alarm corresponding to the use limit timing.