Title:
PROPAGATION PATH OBSTACLE VERIFICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/183345
Kind Code:
A1
Abstract:
The present invention makes it possible to verify easily whether radio wave propagation is being impeded by an obstacle.
This propagation path obstacle verification device carries out: a narrowed-down building data acquisition step of acquiring narrowed-down building data including a building identifier, building location data and building height data relating to buildings equal to or greater than a prescribed height; a reception-point-to-building data acquisition step of acquiring, as reception-point-to-building data, a reception-point-to-building distance and a building absolute horizontal angle of a reception-point-to-building straight line, for each building included in the narrowed-down building data; a propagation path data acquisition step of acquiring propagation path location data indicating the location, in a horizontal direction, of a propagation path; a propagation-path-to-building data acquisition step of acquiring, for each building included in the narrowed-down building data, on the basis of the reception-point-to-building data, as propagation-path-to-building data, a propagation-path-to-building distance and a propagation-path-to-building horizontal angle which is a horizontal angle between the reception-point-to-building straight line and the propagation path; and a building extraction step of extracting any buildings, from among the buildings included in the propagation-path-to-building data, for which the propagation-path-to-building distance or the propagation-path-to-building horizontal angle are equal to or less than a prescribed value.
Inventors:
NAKAMURA RYOTA (JP)
NAKAMURA TAKESHI (JP)
ANDO HIROSHI (JP)
NAKAMURA TAKESHI (JP)
ANDO HIROSHI (JP)
Application Number:
PCT/JP2017/009250
Publication Date:
October 26, 2017
Filing Date:
March 08, 2017
Export Citation:
Assignee:
HITACHI INT ELECTRIC INC (JP)
International Classes:
G01R29/08; G09B29/00; G09B29/10
Foreign References:
| JP2011187029A | 2011-09-22 | |||
| JPH1051368A | 1998-02-20 | |||
| JP2000341224A | 2000-12-08 | |||
| JP2005192145A | 2005-07-14 |
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