Article locating and tracking system
US7248933B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 8, 2002 |
| Grant date | Jul 24, 2007 |
| Priority date | — |
| Expiry date | May 11, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG16H40/20
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A system for tracking an activity in a healthcare environment includes a master station having a processor, a memory, and a transceiver, badges coupled to objects, each transmitting a unique badge ID, and sensors disposed throughout the environment, each including a transceiver for receiving badge IDs and transmitting to the master station transceiver the badge IDs and a unique sensor ID that relates the sensor to a location. The master station processor determines object locations from the badge and sensor IDs by identifying the badge associated with the object, relating the sensor ID to the sensor location, and storing object location information in memory. Each badge also includes a displacement sensor that generates signals indicating object movement and direction for transmission to the sensor transceivers which forward displacement information to the master station. The master station processor uses the information to update the stored object location information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.