Electronic device compensating for geomagnetic sensing data and method for controlling the same

An electronic device comprising:

• a memory,
• a geomagnetic sensor, and
• at least one processor configured to:
• perform linear fitting using a temperature of each of a plurality of heating areas previously stored in the memory and a variation in a geomagnetic value sensed by the geomagnetic sensor,
• compute an error between the variation in the geomagnetic value and an estimated value for the variation in the geomagnetic value, based on a result of the linear fitting,
• determining a scheme for compensating for the geomagnetic value based on the computed error, and
• compensate for the geomagnetic value sensed by the geomagnetic sensor using the determined scheme when a variation in temperature is detected for at least one heating area in the plurality of heating areas,
• wherein the at least one processor is further configured to compute average values of compensated geomagnetic values and, when a difference between the average values is a predesignated threshold or more, re-sense the geomagnetic value, and update the variation in the geomagnetic value stored in the memory.

A method for controlling an electronic device, the method comprising:

• storing, in a memory, a temperature of each of a plurality of heating areas constituting the electronic device and a variation in a geomagnetic value sensed by a geomagnetic sensor, corresponding to the temperature,
• performing linear fitting using the temperature and the variation in the geomagnetic value stored in the memory,
• computing an error between the variation in the geomagnetic value and an estimated value for the variation in the geomagnetic value, based on a result of the linear fitting,
• determining a scheme for compensating for the geomagnetic value based on the computed error, and
• compensating for the geomagnetic value sensed by the geomagnetic sensor using the determined scheme when a variation in temperature is detected for at least one heating area in the plurality of heating areas,
• wherein the storing of the temperature and the variation in the geomagnetic value in the memory further comprises, when an acceleration value sensed by the acceleration sensor is a predesignated value or less, sensing the temperature and the variation in the geomagnetic value and storing the temperature and the variation in the geomagnetic value in the memory.