Device for measuring magnetic field intensity at a specific location using an electronic map and method therefor

Abstract

A measurement method for measuring magnetic field intensity comprises using the measurement device (10) to load an electronic map (200) and mark a predetermined location (300) on the electronic map (200); marking a magnetic north line (400) and a measurement range on the electronic map (200) based on the predetermined location (300), and dividing the measurement range into eight orientation regions of the predetermined location (300) based on the magnetic north line (400); identifying geographical features (G) on the orientation regions within the measurement range and obtaining a size of the geographical features (G); calculating a feature score of one evaluation item of a magnetic field intensity generated by the geographical feature (G) in the eight orientation regions, and selecting the feature score with a highest score of each geographical feature (G) corresponding to each evaluation item in each orientation region as an orientation feature score; each evaluation item extracting a trigonometric orientation score in the eight orientation regions based on each geographical feature (G), and accumulating the trigonometric orientation scores of the geographical features (G) of each evaluation item and averaging the accumulated trigonometric orientation scores to obtain a total evaluation score of each evaluation item; calculating a magnetic field intensity of the predetermined location (300); and displaying the magnetic field intensity.