| 摘要 |
<p>A delivery server comprising: a reception unit that receives indicator data for gas meters, from a mobile terminal; an updating unit that updates remaining gas volumes, using the indicator data; a prediction unit that predicts future remaining gas volumes, in accordance with future daily gas usage volumes, predicted on the basis of daily gas usage volumes used in the period from the last indicator day to the current indicator day and on the basis of the rate of change in past daily gas usage volumes obtained on the basis of indicator data for supply equipment during a predetermined past period; and a determination unit that determines, as the delivery day for a gas container, a day on which the remaining gas volume will reach a prescribed value.</p> |
