Zero misalignment correction system for correcting zero displacement of inertia sensor, zero misalignment correction device, and zero misalignment correction method

摘要

PROBLEM TO BE SOLVED: To provide a zero point deviation correction system 100 for correcting the zero point deviation of an inertial sensor 20 by validly utilizing the output of the inertial sensor 20.SOLUTION: A zero point deviation correction system 100 includes: an inertial sensor 20; a storage device 21; a zero point deviation acquisition part 11 for acquiring the zero point deviation of the inertial sensor 20 stored in the storage device 21; a sensor output correction part 12 for correcting a sensor value to be output by the inertial sensor 20 by using the zero point deviation of the inertial sensor 20, and for outputting a corrected sensor value; a threshold acquisition part 14 for acquiring a predetermined threshold stored in the storage device 21; a kinetic energy calculation part 13 for calculating the kinetic energy of the inertial sensor 20 from the corrected sensor value; and a zero point deviation update part 15 for comparing the threshold acquired by the threshold acquisition part 14 with the kinetic energy calculated by the kinetic energy calculation part 13, and for updating the zero point deviation of the inertial sensor 20 stored in the storage device 21.SELECTED DRAWING: Figure 1