System and method of resilient ultra wide band target localization for a vehicle

US12156097B2 · kind B2 · utility

Assignee

• GM GLOBAL TECHNOLOGY OPERATIONS LLC · US

Inventors

• Jinzhu Chen · Troy, US
• Zijun Han · Rochester Hills, US
• Aaron Adler · Rochester Hills, US
• John Sergakis · Bloomfield Hills, US
• Fan Bai · Ann Arbor, US

Key dates

• Filing date: Oct 26, 2022
• Grant date: Nov 26, 2024
• Expiry date: May 3, 2043

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S2205/01
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method and system of resilient UWB target localization for a vehicle are provided. The system comprises a UWB tag arranged to be mobile and trackable by way of a sensor signal and at least three UWB anchors. Each anchor is in communication with the tag. The system further comprises a gateway in communication with the anchors. The gateway comprises an ECU arranged to receive sensor signals from UWB anchors. The ECU comprises a preprocessing module, a clustering module, and a Bayesian module. The preprocessing module is arranged to align sensor signals at an aligned timestamp to define aligned data. The clustering module is arranged to cluster points of intersections, defining a sensed location for each cluster. The Bayesian module is arranged to determine a real-time location of the tag based on a Bayesian probability function to match the sensed location with a predicted location of the tag.