| 摘要 |
PROBLEM TO BE SOLVED: To provide an individual authentication device which is hard receive variation over time, and can highly accurately recognize an individual.SOLUTION: An individual authentication device 1 includes: acquisition parts 16 and 17 for acquiring measurement results including body weight and physical impedance; a calculation part 11 for calculating an calculation value related to a body composition which is hard to vary over time compared to a moisture amount in the body, on the basis of the measurement results acquired by the acquisition parts and individual information; a storage part 12 for storing the body weight, the individual information and the calculation value in association with a measured person specifying information which specifies a measured person; a comparison part 11 for comparing a last calculation value with a new calculation value; and a measured person specifying part 11 for specifying that the measurement result acquired by the acquisition part is the measurement result corresponding to which measured person specifying information among the measured persons specific information stored in the storage part, on the basis of a difference of the calculation values. |
