Development of Estimation Systems of Calving Time Based on Time-Frequency Analysis for Ventral Tail Base Surface Temperature

In this paper, we propose a new estimation system for the calving time of cows based on monitoring ventral tail base surface temperature. In order to develop the proposed estimation system, ventral tail base surface temperature data is firstly analyzed by using continuous wavelet transform, and next feature parameters based on the analysis result are extracted. Finally, we show the proposed estimation system and its performance is discussed.