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GB2425031A - Position Monitoring With Regard To Bottom Contact - Google Patents

Position Monitoring With Regard To Bottom Contact

Info

Publication number
GB2425031A
GB2425031A GB0615379A GB0615379A GB2425031A GB 2425031 A GB2425031 A GB 2425031A GB 0615379 A GB0615379 A GB 0615379A GB 0615379 A GB0615379 A GB 0615379A GB 2425031 A GB2425031 A GB 2425031A
Authority
GB
United Kingdom
Prior art keywords
regard
bottom contact
position monitoring
monitoring
standard deviation
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
GB0615379A
Other versions
GB2425031B (en
GB0615379D0 (en
Inventor
Henning Skjold-Larsen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB0615379D0 publication Critical patent/GB0615379D0/en
Publication of GB2425031A publication Critical patent/GB2425031A/en
Application granted granted Critical
Publication of GB2425031B publication Critical patent/GB2425031B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K73/00—Drawn nets
    • A01K73/02—Trawling nets
    • A01K73/025—Regulation of net depth
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K73/00—Drawn nets
    • A01K73/02—Trawling nets
    • A01K73/04—Devices for spreading or positioning, e.g. control thereof
    • A01K73/05—Devices for spreading or positioning, e.g. control thereof for vertical sheering
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K75/00—Accessories for fishing nets; Details of fishing nets, e.g. structure

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

The invention relates to a method of monitoring the position of guiding modules for fishing gear with regard to bottom contact, comprising taking measurements of a first angle for the guiding module, calculating average and standard deviation for the angle measurements, based on the average and standard deviation, providing a position indication for the guiding module with regard to bottom contact. The invention also relates to an apparatus for position monitoring.
GB0615379A 2004-02-02 2005-02-01 Position Monitoring With Regard To Bottom Contact Expired - Fee Related GB2425031B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20040464A NO20040464L (en) 2004-02-02 2004-02-02 Method and device for position monitoring
PCT/NO2005/000037 WO2005072520A1 (en) 2004-02-02 2005-02-01 Position monitoring with regard to bottom contact

Publications (3)

Publication Number Publication Date
GB0615379D0 GB0615379D0 (en) 2006-09-13
GB2425031A true GB2425031A (en) 2006-10-18
GB2425031B GB2425031B (en) 2008-08-27

Family

ID=34825263

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0615379A Expired - Fee Related GB2425031B (en) 2004-02-02 2005-02-01 Position Monitoring With Regard To Bottom Contact

Country Status (4)

Country Link
ES (1) ES2321897B1 (en)
GB (1) GB2425031B (en)
NO (1) NO20040464L (en)
WO (1) WO2005072520A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO321070B1 (en) 2004-07-29 2006-03-13 Henning Skjold-Larsen Method and apparatus for monitoring the position of a plate gear

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3038273A (en) * 1960-11-28 1962-06-12 Frank J Luketa Spread, speed, distance, and on-bottom senser for trawl nets
JPS60114782A (en) * 1983-11-28 1985-06-21 Marine Instr Co Ltd Detection of reaching bottom of fishing net
US5347860A (en) * 1993-09-21 1994-09-20 Rimer J Patton Benthic sampling effectiveness measurer
US5376933A (en) * 1992-01-30 1994-12-27 Tupper; Christopher N. Trawl cable vibration meter
WO2002057130A1 (en) * 2000-12-21 2002-07-25 Simrad As A method and device for detecting physical bottom contact for objects on a sea bottom

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1804535A1 (en) * 1968-10-23 1970-05-14 Krupp Gmbh Device for determining the position of a fishing trawl
FR2659451B1 (en) * 1990-03-06 1992-08-07 Thomson Csf METHOD AND DEVICE FOR ACOUSTIC POSITIONING FOR UNDERWATER OBJECT AND APPLICATION TO A TRAWL.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3038273A (en) * 1960-11-28 1962-06-12 Frank J Luketa Spread, speed, distance, and on-bottom senser for trawl nets
JPS60114782A (en) * 1983-11-28 1985-06-21 Marine Instr Co Ltd Detection of reaching bottom of fishing net
US5376933A (en) * 1992-01-30 1994-12-27 Tupper; Christopher N. Trawl cable vibration meter
US5347860A (en) * 1993-09-21 1994-09-20 Rimer J Patton Benthic sampling effectiveness measurer
WO2002057130A1 (en) * 2000-12-21 2002-07-25 Simrad As A method and device for detecting physical bottom contact for objects on a sea bottom

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 009, no. 265 23 October 1985 (1985-10-23) & JP 60114782 A (KAIJIYOU DENKI KK) 21 June 1985 *

Also Published As

Publication number Publication date
WO2005072520A1 (en) 2005-08-11
GB2425031B (en) 2008-08-27
GB0615379D0 (en) 2006-09-13
ES2321897B1 (en) 2010-04-07
ES2321897A1 (en) 2009-06-12
NO20040464L (en) 2005-08-03

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20110201