使用磁性传感器来进行室内环境的地图测绘的方法及系统
By dividing the measurement data of the magnetic sensor into regional sets and estimating and correcting the calibration error, the problem of inaccurate map mapping in indoor positioning systems caused by magnetic sensor calibration errors is solved, thus improving positioning accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ORIIENT NEW MEDIA LTD
- Filing Date
- 2021-07-29
- Publication Date
- 2026-07-17
AI Technical Summary
Existing magnetic sensor calibration methods have calibration errors, which affect the accuracy of map mapping in indoor positioning systems. In particular, under the influence of soft and hard iron effects, it is difficult to effectively eliminate calibration errors.
By segmenting magnetic sensor measurement data into multiple partition data sets, each partition set is associated with its corresponding calibration error, and calibration error estimation and correction are performed by identifying data pairs, the calibration process is optimized by minimizing a cost function.
It effectively reduces calibration errors in magnetic sensor measurements, improving the accuracy of map mapping and location identification in indoor positioning systems.
Smart Images
Figure CN115885190B_ABST