Train interior monitoring method and train interior monitoring system
US10049282B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 6, 2013 |
| Grant date | Aug 14, 2018 |
| Priority date | — |
| Expiry date | Aug 30, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61L15/0036
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a train interior monitoring method, in order to improve the efficiency in memory-usage, when an event occurs, data containing image information, which has been recorded in a temporary image memory, is recorded in an image memory without any processing in order to reduce the file size of the data. Further, data containing image information is recorded in the image memory represents for only a period of time before and after detection of the occurrence of the event, the period of time being set according to what the event is. After a given period of time has elapsed, the data containing the image information is processed in order to reduce its file size and then recorded in the image memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.