The invention relates to a method for monitoring the change of a person's activity in a residence with time.The process includes: - Acquisition (S10), -,For a plurality of continuous time intervals, a time series, for each time interval, including a value associated with the time interval, the value indicating the consumption level of at least one electrical equipment in the time interval, - for each time interval, Comparing (S20) the value associated with the time interval with at least one reference value, and determining (S30) the indicative target information of the individual activity on the basis of the comparison,And based on the target information and at least one target reference information indicating the regular activity of the person, monitoring (S40) the change of the above activity of the person over time.Abstract figure: Figure 5
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