US 12,449,817 B2
Heading and attitude correction method and heading and attitude correction system
Yung-Tai Hsu, Taoyuan (TW); Chun-Heng Chao, Taoyuan (TW); Yen-Wei Wang, Taoyuan (TW); and Bo-Yu Zhu, Taoyuan (TW)
Assigned to AUDEN TECHNO CORP., Taoyuan (TW)
Filed by AUDEN TECHNO CORP., Taoyuan (TW)
Filed on Dec. 13, 2022, as Appl. No. 18/064,999.
Prior Publication US 2024/0192692 A1, Jun. 13, 2024
Int. Cl. G05D 1/00 (2024.01); G06F 17/18 (2006.01)
CPC G05D 1/0891 (2013.01) [G06F 17/18 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A heading and attitude correction method, which is applicable to a heading and attitude correction system, for a vehicle, the method comprising:
obtaining a plurality of attitude data in any one of axial directions in a period of time from an axial sensor;
executing a linear regression analysis on the attitude data and a plurality of time points in the time period to generate a regression line and a standard deviation by a calibration circuit;
processing the attitude data and the regression line using the calibration circuit to determine a deviation value at each of the time points;
excluding the attitude data for which the deviation value is greater than or equal to at least twice the standard deviation by the calibration circuit;
grouping the attitude data according to a grouping value to form a plurality of clusters by the calibration circuit;
digitally matching the clusters based on a total quantity of the attitude data in each of the clusters using the calibration circuit, and selecting one of the clusters with a largest total quantity as an ideal cluster;
generating, via a pre-programmed logic in the calibration circuit, a reasonable attitude data based on averaging the attitude data in the ideal cluster, and outputting the reasonable attitude data as a control parameter; and
transmitting the control parameter to a vehicle navigation system to effect a physical adjustment of the vehicle's steering.