Urgent message apparatus and system
US7680479B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 26, 2006 |
| Grant date | Mar 16, 2010 |
| Priority date | — |
| Expiry date | Aug 17, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B29/181
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An urgent message apparatus mounted in a vehicle, for transmitting, in an emergency, an urgent message with a backup battery with the use of a low-earth orbit orbiting satellite, detects a current position of the vehicle; a obtaining part obtaining a communication not-possible time zone of the low-earth orbit orbiting satellite, for the current position of the vehicle detected by the position detecting part; calculates a power amount to be consumed when the backup battery is maintained in a transmission standby state during the communication not-possible time zone obtained by the obtaining part; measures remaining power of the backup battery; compares a sum of a power amount required for transmitting the urgent message and the power amount calculated by the calculating part, with the remaining power measured by the measuring part; and determines that charging or replacement of the backup battery is required when the sum is larger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.