Mobile terminal program, mobile terminal, information communication system, vehicle acceleration calculation method

摘要

PROBLEM TO BE SOLVED: To correctly obtain the acceleration of a vehicle from a detection value of an acceleration sensor of a portable terminal in consideration of the change in an inclination angle of the portable terminal.SOLUTION: A program for a portable terminal 100 causes a central processing unit 110 to execute: static state determination processing for detecting the static state of the portable terminal 100 and calculating the installation angle of the portable terminal 100 with respect to an own vehicle where the portable terminal 100 is installed; forward movement determination processing for detecting the forward movement state of the own vehicle and calculating the rotation angle of the portable terminal 100 with respect to the movement direction of the own vehicle; processing for converting the acceleration detected by an acceleration sensor 122 into the acceleration of the own vehicle on the basis of the calculated installation angle of the portable terminal 100 and rotation angle of the portable terminal 100 with respect to the movement direction of the own vehicle; processing for detecting the change in the inclination angle of the portable terminal 100; and inclination change processing for correcting the acceleration of the own vehicle in a case where the change in the inclination angle of the portable terminal 100 is detected.SELECTED DRAWING: Figure 1