WO2010094832A3 - Method and arrangement for monitoring sparking - Google Patents

Method and arrangement for monitoring sparking Download PDF

Info

Publication number
WO2010094832A3
WO2010094832A3 PCT/FI2010/050067 FI2010050067W WO2010094832A3 WO 2010094832 A3 WO2010094832 A3 WO 2010094832A3 FI 2010050067 W FI2010050067 W FI 2010050067W WO 2010094832 A3 WO2010094832 A3 WO 2010094832A3
Authority
WO
WIPO (PCT)
Prior art keywords
image
sparking
pixels
value
images
Prior art date
Application number
PCT/FI2010/050067
Other languages
French (fr)
Other versions
WO2010094832A2 (en
Inventor
Jani PÖNKKÖ
Kari PÖNKKÖ
Original Assignee
Alte Visetec Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alte Visetec Oy filed Critical Alte Visetec Oy
Publication of WO2010094832A2 publication Critical patent/WO2010094832A2/en
Publication of WO2010094832A3 publication Critical patent/WO2010094832A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
    • F27D21/02—Observation or illuminating devices
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
    • F27D21/04—Arrangements of indicators or alarms

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Image Analysis (AREA)
  • Alarm Systems (AREA)
  • Image Processing (AREA)

Abstract

In the invention sparking in the object is monitored with a camera (201) and an image processing unit (203). The object is imaged and from the images thus obtained an image pair is formed in the image processing unit, in which image pair there is a first and a second image. Images of the image pair are compared to each other and those pixels that have values that are substantially the same in the corresponding pixels of both images and those pixels that have a value lower than the set threshold value are removed from the first image. The number of pixels remaining gives the sparking value that represents the sparking of the object. To compare the pixels of the image pairs there is a comparator (204) of pixels values in the image processing unit. The pixels that do not fulfil the comparison values are removed with the image reducer (205) from the first image. The number of pixels remaining in the first image is determined with the counter (206), which number is the sparking value, which is proportionate to the sparking occurring in the object at the time when the image was taken. The sparking value is delivered to the system (210) monitoring the object, which system undertakes the necessary actions if sparking exceeding a certain limit is detected in the object.
PCT/FI2010/050067 2009-02-06 2010-02-05 Method and arrangement for monitoring sparking WO2010094832A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20095115A FI121443B (en) 2009-02-06 2009-02-06 Method and arrangement for controlling sparking
FI20095115 2009-02-06

Publications (2)

Publication Number Publication Date
WO2010094832A2 WO2010094832A2 (en) 2010-08-26
WO2010094832A3 true WO2010094832A3 (en) 2010-10-14

Family

ID=40404618

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2010/050067 WO2010094832A2 (en) 2009-02-06 2010-02-05 Method and arrangement for monitoring sparking

Country Status (2)

Country Link
FI (1) FI121443B (en)
WO (1) WO2010094832A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109352424A (en) * 2018-09-18 2019-02-19 东莞市皓晟实业有限公司 Electric main shaft of digital control machine tool temperature-compensation method and device
CN115546224B (en) * 2022-12-06 2023-04-07 新乡学院 Automatic fault identification and control method for motor operation process

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0886730A (en) * 1994-09-16 1996-04-02 Meidensha Corp Device and method for discriminating material
JPH08247926A (en) * 1995-03-07 1996-09-27 Toshiba Eng Co Ltd Steel material inspection device
JP2000111410A (en) * 1998-10-02 2000-04-21 Mitsubishi Electric Corp Fire detector
US20040070761A1 (en) * 2002-10-11 2004-04-15 Intralase Corp. Method and system for determining the alignment of a surface of a material in relation to a laser beam
JP2008126274A (en) * 2006-11-21 2008-06-05 Kobe Steel Ltd Spatter recognition method and apparatus in arc welding
JP2009072788A (en) * 2007-09-18 2009-04-09 Jfe Steel Kk Method and device for detecting spark of welding and method of manufacturing welded product

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0886730A (en) * 1994-09-16 1996-04-02 Meidensha Corp Device and method for discriminating material
JPH08247926A (en) * 1995-03-07 1996-09-27 Toshiba Eng Co Ltd Steel material inspection device
JP2000111410A (en) * 1998-10-02 2000-04-21 Mitsubishi Electric Corp Fire detector
US20040070761A1 (en) * 2002-10-11 2004-04-15 Intralase Corp. Method and system for determining the alignment of a surface of a material in relation to a laser beam
JP2008126274A (en) * 2006-11-21 2008-06-05 Kobe Steel Ltd Spatter recognition method and apparatus in arc welding
JP2009072788A (en) * 2007-09-18 2009-04-09 Jfe Steel Kk Method and device for detecting spark of welding and method of manufacturing welded product

Also Published As

Publication number Publication date
FI121443B (en) 2010-11-15
FI20095115A0 (en) 2009-02-06
WO2010094832A2 (en) 2010-08-26
FI20095115A (en) 2010-08-12

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