Personnel monitoring tag
US5745037A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 1996 |
| Grant date | Apr 28, 1998 |
| Priority date | — |
| Expiry date | Jun 13, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B21/22
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method for accounting for individual persons of a plurality of persons based upon random times that occur as a function of a first specified time interval, and a random interval monitoring system that operates in accordance with the method to report information regarding the presence of both desired and undesired conditions affecting a person. The method includes a first step of transmitting information signals based upon random times from individual ones of a plurality of tags each to be worn by respective persons to at least one of at least one master transceiver and at least one transceiver. The information signals transmitted from each tag correspond to whether a tag is being worn and to certain activities or a lack thereof of sensors in electrical communication with the tag including pressure and motion sensing equivocated to actually wearing the tag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.