Electric field monitoring system and method
US8866469B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2012 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Nov 11, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B7/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Several systems and methods for monitoring the proximity of a device to a power line are disclosed. Electric field monitoring systems are mounted to the device and include a plurality of electric field sensors and a monitoring system base unit. Each electric field monitoring sensor senses the strength of a magnetic field in which the sensor is positioned and transmits a corresponding magnitude output signal to the base unit when polled by the base unit. If a sensor reports a magnetic field exceeding a threshold, the frequency of polling for that sensor may be increased. If a sensor reports a magnetic field exceeding another (possibly identical) threshold, an alarm may be activated, movement of the device may be limited or stopped or another action or a combination of actions may be taken.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.