INFORMATION PROCESSING DEVICE, DIGESTION RATE ESTIMATION METHOD, INFORMATION PROCESSING SYSTEM, AND DIGESTION RATE ESTIMATION PROGRAM

摘要

[Object] To provide an information processor, a digestibility estimation method, an information processing system, and a digestibility estimation program that are capable of providing a service corresponding to a digestibility of consumed food to a user in real time.[Solution] An information processor for estimating a digestibility of food consumed by a user includes: a first receiver for receiving a plurality of pieces of heart rate information measured at specified time intervals from a heart rate signal measurement device carried by the user; a second receiver for receiving information of a meal start time and a meal finish time of the user; a line calculation unit for calculating, based on a trend indicated by the plurality of pieces of heart rate information, in which the heart rate rises with time after meal and then drops, a first-order approximation line that approximates the trend; a correction unit for correcting the first-order approximation line based on a trend indicated by the plurality of pieces of heart rate information in which the heart rate rises with time during meal and then drops; a time specification unit for specifying a digestion finish time indicating the time when digestion of the food is completed, based on the corrected first-order approximation line and the heart rate at the meal start time; and a digestibility estimation unit for estimating the digestibility at the current time based on the meal finish time and the specified digestion finish time.