FI83910B - APPARATUS AND EQUIPMENT FOR THE MAINTENANCE OF STORES AND HOSES. - Google Patents
APPARATUS AND EQUIPMENT FOR THE MAINTENANCE OF STORES AND HOSES. Download PDFInfo
- Publication number
- FI83910B FI83910B FI880736A FI880736A FI83910B FI 83910 B FI83910 B FI 83910B FI 880736 A FI880736 A FI 880736A FI 880736 A FI880736 A FI 880736A FI 83910 B FI83910 B FI 83910B
- Authority
- FI
- Finland
- Prior art keywords
- bundle
- measuring
- log
- carriage
- fork
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Description
8391 08391 0
MENETELMÄ JA LAITTEISTO TUKKINIPUN SUUREIDEN MITTAAMISEKSIMETHOD AND APPARATUS FOR MEASURING THE SIZES OF A LOG BEAM
Keksinnön kohteena on menetelmä ja laitteisto tukkinipun suureiden, erityisesti puutilavuuden mittaamiseksi.The invention relates to a method and apparatus for measuring the quantities of a log bundle, in particular the volume of wood.
55
Tukkinipun puutilavuuden mittaamisessa on tähän mennessä käytetty upotusmittausta, jossa koko nipun syrjäyttämä vesimäärä vastaa sen tilavuutta. Usein kuitenkin haluttaisiin tietoja tukkien kokojakaumasta sekä halkaisijan että pituuden suhteen. 10 Tarkoissa mittauksissa tunnetun tekniikan mukaan koko nippu pitääkin purkaa ja mitata jokainen tukki erikseen.To date, immersion measurement has been used to measure the volume of wood in a log bundle, where the amount of water displaced by the entire bundle corresponds to its volume. However, information on the size distribution of logs in terms of both diameter and length would often be desired. 10 According to the prior art for precise measurements, the entire bundle must be disassembled and each log measured separately.
Tämän keksinnön tarkoituksena on aikaansaada uusi ja yksinkertainen menetelmä sekä laitteisto tukkinipun suureiden mittaami-15 seksi. Keksinnön mukaisen menetelmän pääasialliset tunnusmerkit on esitetty oheisessa patenttivaatimuksessa 1. Keksinnön pohjana on hahmontunnistuksen soveltaminen tunnistamaan nipun tukkien päät, jonka avulla päästään mittaamaan niiden sijainti. Koska tukit saattavat olla ristikkäin nipussa, saman tukin päiden 20 tunnistaminen molemmin puolin ei välttämättä ole mahdollista. Tästä syystä patenttivaatimuksen 2 mukainen laskentamalli on erityisen edullinen. Tämä antaa hyvällä tarkkuudella nipun koko puutilavuuden. Jakauma voidaan laskea kummakin pään jakauman perusteella. Jos saman tukin molemmat päät tunnistetaan, sen 25 tilavuus voidaan laskea esimerkiksi katkaistuna kartiona.The object of the present invention is to provide a new and simple method and apparatus for measuring the quantities of a log bundle. The main features of the method according to the invention are set out in the appended claim 1. The invention is based on the application of pattern recognition to identify the ends of a bundle of logs, by means of which their location can be measured. Because the logs may be crosswise in a bundle, it may not be possible to identify the ends 20 of the same log on either side. Therefore, the calculation model according to claim 2 is particularly advantageous. This gives the full volume of wood in the bundle with good accuracy. The distribution can be calculated based on the distribution of each head. If both ends of the same log are identified, its volume 25 can be calculated, for example, as a truncated cone.
Keksinnön mukaisen laitteiston pääasialliset tunnusmerkilliset piirteet on esitetty vaatimuksessa 4. Kamera voi olla joko matriisikamera tai tavallinen analoginen videokamera, jonka kuva 30 erikseen digitalisoidaan. Erityisen edullista on käyttää lineaa-rikameraa, koska se voidaan asentaa samaan kelkkaan kuin etäisyyden mittauslaite.The main characteristic features of the apparatus according to the invention are set out in claim 4. The camera can be either a matrix camera or an ordinary analog video camera, the image 30 of which is separately digitized. It is particularly advantageous to use a linear camera because it can be mounted on the same carriage as the distance measuring device.
Seuraavassa keksintöä havainnollistetaan oheisen kuvan avulla, 35 joka esittää esimerkkinä kahdella mittausyksiköllä varustettua tukkinipun mittausjärjestelmää.In the following, the invention is illustrated by the accompanying figure 35, which shows an example of a log bundle measuring system with two measuring units.
Tukkinippu l asetetaan mittausta varten haarukkaan 2, joka rajaa tällöin mittausalueen. Haarukkaan 2 liittyy tavanomainen kuorman 40 punnituselin, jolla saadaan mitattua koko nipun (1) paino.For measurement, the log bundle 1 is placed on the fork 2, which then delimits the measuring range. Attached to the fork 2 is a conventional load weighing member 40 for measuring the weight of the entire bundle (1).
2 83910 Järjestelmän perusosat ovat mittausyksiköt 3 ja 8 molemmin puolin haarukan 2 kantamaa nippua ja laskentalaitteisto 9. Se muodostuu AT-tyypin mikrotietokoneesta ja siihen liitetystä kirjoittimesta 7 saadaan tulostettua kutakin nippua koskevat 5 tiedot.2 83910 The basic components of the system are the measuring units 3 and 8 on each side of the bundle carried by the fork 2 and the calculating equipment 9. It consists of an AT-type microcomputer and the printer 7 connected to it can print the data for each bundle 5.
Mittausyksiköt 3 ja 8 käsittävät kelkan 4 ja sen siirtolait-teiston 5 sekä kelkkaan asennetut IR-laserpulssi-etäisyysmit-taus-laitteen 10 ja CCD-lineaarivideokameran 6.The measuring units 3 and 8 comprise a carriage 4 and its transmission equipment 5, as well as an IR laser pulse distance measuring device 10 and a CCD linear video camera 6 mounted on the carriage.
1010
Mittausyksiköt 3 ja 8 on asennettu nippuhaarukan 2 suhteen siten, että ne ovat nipun 1 tukkien pääsuunnan kanssa samassa linjassa. Haarukka 2 rajaa mittausalueeksi n 2,8 m x 2,8 m. Kelkan 4 siirtolaitteisto 5 on mitoitettu kattamaan koko tämä 15 alue niin, että sekä kuvaus että etäisyysmittaus tapahtuvat kohtisuoraan nipun päitä vasten.The measuring units 3 and 8 are mounted with respect to the bundle fork 2 so that they are in line with the main direction of the logs of the bundle 1. The fork 2 delimits a measuring area of about 2.8 m x 2.8 m.
Mittauksen suoritus tapahtuu seuraavasti. Mitattava tukkinippu 1 asetetaan haarukkaan 2. Siirtolaitteen 5 avulla kelkkaa 4 20 aletaan siirtää askeltamalla mittausalueen yli. Jokaisen vaakasuuntaisen pyyhkäisyn jälkeen vaakasuuntaista liukukiskoa lasketaan sopivan askeleen verran. Etäisyysmittaukset rekisteröidään laskentalaitteelle 9 matriisiksi. Lineaarikameraa 6 ei välttämättä tarvitse kuljettaa niin tiheään kentän yli. Jos 25 kameran 6 viivasensori on pystysuunnassa, niin muutama pyyhkäisy riittää. Käytännössä on yksinkertaisempaa suorittaa kuvaus erikseen. Kuvaus aikaansaa toisen matriisin, jossa yksi alkio sisältää kyseisen kuva-alkion valovoimakkuuden numeroarvona 0...255.The measurement is performed as follows. The log bundle 1 to be measured is placed on the fork 2. By means of the transfer device 5, the carriage 4 20 is started to be moved by stepping over the measuring range. After each horizontal sweep, the horizontal slide rail is lowered by a suitable step. The distance measurements are registered to the calculator 9 as a matrix. The linear camera 6 does not necessarily have to be transported over such a dense field. If the line sensor 6 of the 25 cameras is vertical, then a few sweeps will suffice. In practice, it is simpler to perform the description separately. The description provides a second matrix in which one element contains the luminance of that pixel as a numeric value 0 ... 255.
3030
Kuvan käsittely alkaa etsimällä kuvamatrlisistä raja-arvopis-teet, joissa kuvan kirkkaus muuttuu jyrkästi. Tämän jälkeen saatuihin raja-arvopisteisiin yritetään sovittaa erikokoisia kaaria. Tukin pään hahmon hyväksymiseen voidaan käyttää usean-35 laisia kriteereinä. Jos esimerkiksi kahden lähekkäisen kaaren väliseen tilaan osuu hyväksymisrajaksi asetettua enemmän raja-arvopisteitä, tällöin voidaan olettaa näiden pisteiden kuvaavan tukin päätä. Loput hahmoon kuuluvat raja-arvopisteet löytyvätImage processing begins by looking for cut-off points in the image matrix where the brightness of the image changes sharply. Attempts are then made to fit arches of different sizes to the limit values obtained. Multiple-35 can be used as criteria for accepting a log head character. For example, if the space between two adjacent arcs is hit by more limit values than the acceptance limit, then it can be assumed that these points describe the end of the log. The rest of the limit points in the character can be found
Claims (7)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI880736A FI83910C (en) | 1988-02-17 | 1988-02-17 | Method and apparatus for measuring the quantities of a timber knife |
EP19890902391 EP0403497A1 (en) | 1988-02-17 | 1989-02-16 | A method and equipment for measuring a pile of logs |
PCT/FI1989/000028 WO1989007749A1 (en) | 1988-02-17 | 1989-02-16 | A method and equipment for measuring a pile of logs |
JP50219489A JPH03502835A (en) | 1988-02-17 | 1989-02-16 | Method and apparatus for measuring log piles |
AU30581/89A AU3058189A (en) | 1988-02-17 | 1989-02-16 | A method and equipment for measuring a pile of logs |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI880736A FI83910C (en) | 1988-02-17 | 1988-02-17 | Method and apparatus for measuring the quantities of a timber knife |
FI880736 | 1988-02-17 |
Publications (4)
Publication Number | Publication Date |
---|---|
FI880736A0 FI880736A0 (en) | 1988-02-17 |
FI880736A FI880736A (en) | 1989-08-18 |
FI83910B true FI83910B (en) | 1991-05-31 |
FI83910C FI83910C (en) | 1991-09-10 |
Family
ID=8525932
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI880736A FI83910C (en) | 1988-02-17 | 1988-02-17 | Method and apparatus for measuring the quantities of a timber knife |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0403497A1 (en) |
JP (1) | JPH03502835A (en) |
AU (1) | AU3058189A (en) |
FI (1) | FI83910C (en) |
WO (1) | WO1989007749A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI85542C (en) * | 1989-11-27 | 1992-04-27 | Vision Systems Oy | FOERFARANDE OCH ANORDNING FOER MAETNING AV KNIPPEN. |
DE4303213C2 (en) * | 1992-07-08 | 1995-05-11 | Abb Patent Gmbh | Method and arrangement for determining the impact area of a bulk material mass flow by means of image evaluation |
SE515950C2 (en) * | 1999-06-23 | 2001-10-29 | Acanova Ab | Method and apparatus for measuring the log surface profile of a log |
WO2001020324A1 (en) * | 1999-09-14 | 2001-03-22 | Opti-Wood Aps | Method for quality determination and handling of elongate wood items |
DE102009027449A1 (en) * | 2009-07-03 | 2011-01-05 | Hochschule für angewandte Wissenschaft und Kunst Fachhochschule Hildesheim/Holzminden/Göttingen | Registration of round logs |
EP2568252A1 (en) | 2011-09-06 | 2013-03-13 | HM Puidukaubandus OÜ | Method and a device for accurate measuring of volume of timber |
KR102211785B1 (en) * | 2018-09-17 | 2021-02-04 | 데이터로그, 엘엘씨 | Log inspection system and related methods |
FI20195628A1 (en) * | 2019-07-11 | 2021-01-12 | Teknosavo Oy | Method for determination of volume of pulp wood or timber stack |
JP7113533B2 (en) * | 2020-03-12 | 2022-08-05 | 株式会社オートインスペクト | Automatic pipe inspection device |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI51534C (en) * | 1972-03-27 | 1977-01-10 | Kajaani Oy | Method and device for measuring the flank density of a wood pile. |
US3852579A (en) * | 1973-03-23 | 1974-12-03 | Sun Studs | Method and apparatus for determining the surface configuration of elongate objects, particularly logs |
FI54971C (en) * | 1974-02-07 | 1979-04-10 | Kajaani Oy | FOERFARANDE FOER MAETNING AV FLANKTAETHETEN AV EN VEDTRAVE |
-
1988
- 1988-02-17 FI FI880736A patent/FI83910C/en not_active IP Right Cessation
-
1989
- 1989-02-16 EP EP19890902391 patent/EP0403497A1/en not_active Withdrawn
- 1989-02-16 JP JP50219489A patent/JPH03502835A/en active Pending
- 1989-02-16 AU AU30581/89A patent/AU3058189A/en not_active Abandoned
- 1989-02-16 WO PCT/FI1989/000028 patent/WO1989007749A1/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
EP0403497A1 (en) | 1990-12-27 |
FI83910C (en) | 1991-09-10 |
FI880736A (en) | 1989-08-18 |
AU3058189A (en) | 1989-09-06 |
FI880736A0 (en) | 1988-02-17 |
WO1989007749A1 (en) | 1989-08-24 |
JPH03502835A (en) | 1991-06-27 |
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MM | Patent lapsed | ||
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Owner name: VISION SYSTEMS OY |