Movement-measurement-processing system, movement-measurement-processing method, and movement-measurement-processing program
US9530317B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 20, 2013 |
| Grant date | Dec 27, 2016 |
| Priority date | — |
| Expiry date | May 22, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G5/80
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A peripheral aircraft selection means maps a region in a 3D space defined by a start point of period information of the aircraft of interest, a point having the coordinate values of passage position coordinates at an end point of the period information and a lower limit arrival time, and a point having the coordinate values of passage position coordinates at the end point of the period information and an upper limit arrival time onto a 2D plane by use of a first projection matrix. The peripheral aircraft selection means then selects a peripheral aircraft which can abnormally near to the aircraft of interest by determining how the resultant region crosses with a circle whose center is a passage position of the peripheral aircraft and whose radius is a determination standard threshold as to whether abnormal nearing will occur.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.