Patent ID: 8527601

Claim:
A data sending apparatus, comprising: a processor and a memory; a storage that stores a plurality of data; a sending unit that externally sends data stored by the storage at a predetermined interval; an update unit that updates data stored by the storage; a group classification unit that classifies the plurality of data stored by the storage into a plurality of groups; a data categorization unit that categorizes data belonging to each group classified by the group classification unit into data categories; a selection unit that selects a group from the plurality of groups classified by the group classification unit; a fraction unit that fractionates a clump of data belonging to the group selected by the selection unit into pieces of data, wherein the update unit updates data belonging to a predetermined data category categorized by the data categorization unit among data belonging to a group selected by the selection unit, at every said interval, and the sending unit sends a piece of data that is obtained by the fraction unit fractionating the clump of data which comprises data updated by the update unit, wherein the sending unit sends each piece of data at every said interval under a sending completion allowable time previously set for the group selected by the selection unit.