System and method for diagnosing sensor performance of an ultra wide band sensor localization
US12326509B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2022 |
| Grant date | Jun 10, 2025 |
| Priority date | — |
| Expiry date | Jan 4, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2205/01
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methods of diagnosing sensor performance of an ultra wide band (UWB) sensor localization for a vehicle are provided. The method comprises receiving sensor signals from at least four UWB anchors and a UWB tag for a time period. The sensor signals represent anchor coordinates and real-time distances between the tag and each anchor. The method comprises aligning the sensor signals to define aligned data. The method comprises calculating a predicted location of the UWB tag based on the aligned data and a least square of error to define a first constructed matrix and a second constructed matrix. The method comprises determining a local error of each of the at least four UWB anchors based on the least square of error and comparing each local error with an error threshold to define a first threshold high. The method comprises determining an erratic anchor based on the first threshold high.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.