The purpose of the present invention is to reduce errors in sensing results because of offsetting of installation positions for biological sensors. Biological information that is detected by a biological information detecting unit that is installed in a prescribed location in a living organism and detects biological information in a living organism is obtained an offset amount detected by a positional offset detecting unit that detects the amount of offset in position of the biological information detecting unit from the prescribed location during detection of the biological information is obtained and, according to the amount of offset, optimal biological information is estimated from the biological information obtained.
