Vehicle brake monitoring through ultrasonic emissions
US10486675B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Nov 8, 2018 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Nov 8, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C5/008
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A system, method, and apparatus for vehicle brake monitoring are disclosed. An example method includes receiving a vehicle brake sound signal in a microphone and recording, via a sound card, a digital sound sample of the sound signal, the digital sound sample having a predetermined duration. The method also includes processing, via a processor, the digital sound sample into a feature frequency spectrum. The method further includes applying, via the processor, broad spectrum matching to compare the feature frequency spectrum at least one spectrum recorded previously and stored in a database. The method moreover includes, conditioned on significant changes from that previously recorded spectrum, transmitting via the processor, an alert that problems may exist with the sampled vehicle brake.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.