Patent attributes
A remote monitoring system includes a plurality of data collection devices and a data aggregation device. Each data collection device acquires, from one or more installed apparatuses, a set of data including information representing at least either an operational situation or operational detail of one or more installed apparatuses. Each data collection device stores collection side definition information for extracting the apparatus data from the set of data including the apparatus data and makes a request to the data aggregation device to update the collection side definition information when a predetermined condition is satisfied. The data aggregation device stores aggregation side definition information for extracting the apparatus data from the set of data, and transmits, when the request is received from one or more of the data collection devices, information for updating based on the aggregation side definition information to the one or more of the data collection devices. The data collection devices that have received the information for updating each update the collection side definition information by using the information for updating.
