TROLLEY WIRE WEAR MEASURING DEVICE - MEIDENSHA ELECTRIC MFG CO LTD

Title:

TROLLEY WIRE WEAR MEASURING DEVICE

Document Type and Number:

WIPO Patent Application WO/2008/044389

Kind Code:

A1

Abstract:

[PROBLEMS] To easily and reliably measure the wear over the full section of a trolley wire even in the daytime without being influenced by structures around the trolley wire. [MEANS FOR SOLVING PROBLEMS] A test car (1) has a line sensor (5) arranged along the direction of the scanning line perpendicular to the direction in which a trolley wire is laid and an illuminator lamp (6) and images the pantograph contact surface of the trolley wire while thee test car is traveling. The measuring computer (7) stores the image in a recorder (8). A line sensor image is created by arranging in time series the luminance signal of the scanning line obtained by the line sensor, a binary line sensor image is created from the line sensor image, the sky parts are removed from the binary line sensor image, the edge of the worn part of the trolley wire is detected, and the width of the worn part of the trolley wire is determined from the full width of the trolley wire with respect to the edge data and the height of the trolley wire viewed from the line sensor.

More Like This:

JPS63186103

PHOTOELECTRIC DETECTOR

Inventors:

WATABE YUSUKE
NIWAKAWA MAKOTO

Application Number:

PCT/JP2007/065835

Publication Date:

April 17, 2008

Filing Date:

August 14, 2007

Export Citation:

Click for automatic bibliography generation Help

Assignee:

MEIDENSHA ELECTRIC MFG CO LTD (JP)
WATABE YUSUKE
NIWAKAWA MAKOTO

International Classes:

G01B11/02; B60M1/28

Foreign References:

JP2006248411A	2006-09-21
JP2005271682A	2005-10-06
JP2006250776A	2006-09-21
JPH11281334A	1999-10-15
JP2004508560A	2004-03-18
JPH0596980A	1993-04-20
JPH07105473A	1995-04-21
JPH10194015A	1998-07-28

Other References: