An embodiment of the present invention provides a monitoring information collecting unit that collects monitoring information including information on changes in pollution level-related information over time after the filth is put into the filth treatment area in the monitoring step, and in the operation step, the user controls the filth. In the idling step of stopping the operation of the movable device for the filth, an operation information collecting unit that collects operation information including information on the operation of the movable device, the pollution degree related information, and the used energy related information while the movable device is operated for processing An idling information collection unit that collects idling information including pollution degree related information and energy usage related information of A generation unit, a cluster generation unit that distinguishes the plurality of data set information into one or more clusters based on the monitoring information, and selects representative operation information by analyzing the operation information of the one or more data set information included in the cluster a representative operation information selection unit that analyzes monitoring information including information on changes in contamination level-related information over time after filth is put into the filth treatment area, and matches the one or more clusters to a related cluster among the one or more clusters and a guide operation information selection unit that selects representative operation information corresponding to the cluster matched by the cluster matching unit as guide operation information.
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