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Patent Searching and Data


Title:
TRACK INSPECTING DEVICE
Document Type and Number:
Japanese Patent JPH0350068
Kind Code:
A
Abstract:

PURPOSE: To photograph the images of objects to be inspected positively from a running vehicle even in case the objects to be inspected are placed at random by providing an image photographing means for taking the image on the track in on the basis of a signal discriminated the specific structure on the track by discriminating means.

CONSTITUTION: Energy beams are irradiated to a structure on a track 16 from a sensor 10, and the energy beams reflected from the track are received. This received signal passes through discriminating means 2, 3, 4 for performing at least two discriminatings or more among the distance between a track inspecting device and the structure, the sense of direction of the structure and the size (dimension) of the structure, thus detecting the specific structure on the track 16. On the basis of this detection signal, the image of the object to be inspected on the track is then photographed by a TV camera 12. The image of all the objects to be inspected can be thus photographed positively even if many objects to be inspected are randomly placed on the track as well as a vehicle mounted with the track inspecting device is running at high speed.


Inventors:
YOMOTO MASAHIKO
MARUO MITSUMASA
NEZU HIDEAKI
Application Number:
JP1989000182521
Publication Date:
March 04, 1991
Filing Date:
July 17, 1989
Export Citation:
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Assignee:
NIKON CORP
International Classes:
E01B35/12; B61L23/00; G01N21/84; G06T1/00; (IPC1-7): B61L23/00; E01B35/12; G01N21/84; G06F15/62