System and method for monitoring vehicle mass tamper events
US9020658B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2011 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | Apr 17, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G19/086
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for detecting a mass tamper event affecting a vehicle mass record for a vehicle being monitored includes a body bounce frequency estimator configured to estimate body bounce frequency for the vehicle and a mass estimator configured to estimate a vehicle mass, m, according to the equation (I), where k is a constant relating to a suspension system in the vehicle and ωb is the estimated body bounce frequency. A first comparator compares the estimated vehicle mass value with an alternative vehicle mass value and identifies a mass tamper event when the estimated vehicle mass value differs from the alternative vehicle mass value by more than a pre-determined amount. An interface communicates mass tamper event data to a remote device. A system and method for recording vehicle mass data are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.