To provide a battery life prediction device and a battery life prediction method which can predict a battery life of a detection device that detects information concerning a state of a tire, with high accuracy.SOLUTION: A battery life prediction device comprises: an obtaining part (131) that obtains input data including a temperature of a tire, pressure of the tire, a value concerning voltages of a battery and use time of the battery; and a predicting part (133) that predicts, as a life of the battery, a value concerning voltages at the time after a predetermined period of time elapses in the future, using the input data and a prediction model. The prediction model is generated by machine leaning, using data for learning in which key statistics, cumulative values, change per unit time and time-series feature amounts of the temperature of the tire and the pressure of the tire in result data and running time are set as preprocessing amounts, the value concerning voltages of the battery and at least some of the preprocessing amounts are set as explanatory variables, and the value concerning the voltages of the battery at the time after the predetermined period of time elapses is set as an objective variable.SELECTED DRAWING: Figure 1
【課題】タイヤの状態に関する情報を検出する検出装置の電池寿命を高精度に予測可能な電池寿命予測装置及び電池寿命予測方法が提供される。【解決手段】電池寿命予測装置は、タイヤの温度、タイヤの圧力、電池の電圧に関する値及び電池の使用時間を含む入力データを取得する取得部(131)と、入力データと予測モデルとを用いて、電池の寿命として将来の所定期間後の電圧に関する値を予測する予測部(133)と、を備え、予測モデルは、実績データにおけるタイヤの温度及びタイヤの圧力についての基本統計量、累積値、単位時間当たりの変化、時系列特徴量及び走行時間を前処理量として、電池の電圧に関する値と前処理量の少なくとも一部を説明変数とし、所定期間後の電池の電圧に関する値を目的変数とする学習用データを用いて、機械学習によって生成される。【選択図】図1
BATTERY LIFE PREDICTION DEVICE AND BATTERY LIFE PREDICTION METHOD
電池寿命予測装置及び電池寿命予測方法
17.03.2025
Patent
Elektronische Ressource
Japanisch
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