Vehicular electronic device, operation method of vehicular electronic device, and system

A system comprising:

• a server configured to provide map data;
• and
• a vehicle comprising an electronic device configured to receive the map data,
• wherein the electronic device comprises:
• a power supply configured to supply power;
• a memory configured to store data;
• an interface configured to receive, from the server through a communication device, the map data on an area within a predetermined range from a location of the vehicle;
• and
• at least one processor configured to:
• generate electronic horizon data on the area based on the map data and the location of the vehicle in a state of receiving the power from the power supply, and
• provide the electronic horizon data to a driving system of the vehicle to perform a driving operation,
• wherein the at least one processor is further configured to:
• generate first electronic horizon data regarding a first section, the first section including an area from a first point to a second point in the map data,
• determine whether the vehicle travels the first section based on at least one of location data of the vehicle or traveling record data of the vehicle,
• based on a determination that a number of times the vehicle has travelled the first section is greater than or equal to a reference number, store the first electronic horizon data in the memory,
• based on a determination that the vehicle is traveling the first section again, retrieve the first electronic horizon data from the memory without generating electronic horizon data regarding the first section, and
• based on a determination that the map data on the first section has changed, generate second electronic horizon data based on the changed map data.