Wetness monitoring system
US7250547B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2000 |
| Grant date | Jul 31, 2007 |
| Priority date | — |
| Expiry date | Apr 20, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/121
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a wetness monitoring system that includes a data collection device that sends wetness measurement data to a central computer that detects changes in wetness measurement data caused by the presence of urine or other dielectric fluids. The data collection device includes a semi-reusable sensor and reusable data collector that are worn on a garment of the person. The data collector includes an internal power source so that the person can live a normal ambulatory life. The data collector has an electrical circuit that uses the changing resistance characteristics in the sensor to gather wetness measurement data. The data collector periodically generates and transmits a signal containing the actual wetness measurement data. The signals are coded to identify the particular data collector or person sending the signal. The data collector is programmed to conserve power by sending signals less frequently during periods when the sensor is clearly dry. Signals are sent more frequently when the sensor is damp or a wetness event may have occurred. The central computer receives the signals containing the wetness measurement data and compares the measurement data t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.