INFORMATION PROCESSING DEVICE AND INFORMATION PROCESSING SYSTEM

An information processing device (20) performs information processing on position coordinates of a moving body (1). The information processing device includes a storage (22) and a controller (21). The storage stores travel history information (100) including a series of position coordinates indicative of a travel history of the moving body. The controller performs map matching that corrects the position coordinates onto a road network of map information (222). The controller calculates a plurality of candidate coordinate sequences in which position coordinates as a result of the map matching are arranged, based on the travel history information stored in the storage. The controller generates position data (223) indicative of a position where the moving body was traveling, based on the plurality of candidate coordinate sequences.