FI13231Y1 - Device for ultrasonic calibration of the harvester head - Google Patents

Device for ultrasonic calibration of the harvester head Download PDF

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Publication number
FI13231Y1
FI13231Y1 FIU20210062U FIU20210062U FI13231Y1 FI 13231 Y1 FI13231 Y1 FI 13231Y1 FI U20210062 U FIU20210062 U FI U20210062U FI U20210062 U FIU20210062 U FI U20210062U FI 13231 Y1 FI13231 Y1 FI 13231Y1
Authority
FI
Finland
Prior art keywords
harvester head
ultrasound
calibrating
calibration
harvester
Prior art date
Application number
FIU20210062U
Other languages
Finnish (fi)
Swedish (sv)
Inventor
Pasi Kuosmanen
Original Assignee
Pjk Forest Tech 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 Pjk Forest Tech Oy filed Critical Pjk Forest Tech Oy
Priority to FIU20210062U priority Critical patent/FI13231Y1/en
Publication of FI13231Y1 publication Critical patent/FI13231Y1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G23/00—Forestry
    • A01G23/02—Transplanting, uprooting, felling or delimbing trees
    • A01G23/08—Felling trees
    • A01G23/083—Feller-delimbers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/06—Systems determining the position data of a target
    • G01S15/08—Systems for measuring distance only
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/06—Systems determining the position data of a target
    • G01S15/08—Systems for measuring distance only
    • G01S15/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
    • G01S15/325—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of coded signals, e.g. of phase-shift keyed [PSK] signals

Landscapes

  • Radar, Positioning & Navigation (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Acoustics & Sound (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Forests & Forestry (AREA)
  • Environmental Sciences (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Description

LAITE HARVESTERIPÄÄN KALIBROINTIIN ULTRAÄÄNELLÄDEVICE FOR HARVESTER HEAD CALIBRATION USING ULTRASOUND

KEKSINNÖN ALA Keksinnön — kohteena on laite — harvesteripäällä — kerättävän — puun — halkaisijamittauksen kalibrointiin ultraäänellä. Kalibroinnin avulla todennetaan puun halkaisija ja saadaan todellinen kerätty puuaineksen tilavuus selville.FIELD OF THE INVENTION The object of the invention is a device for calibrating the diameter measurement of harvested wood with ultrasound on the harvester head. With the help of calibration, the diameter of the tree is verified and the actual collected volume of wood material is found out.

KEKSINNÖN TAUSTA Tällä hetkellä harvesteripään — kalibrointi tehdään mekaanisesti. Saatu — mittaustulos kompensoidaan harvesterin mittausjärjestelmään. Automaatista kalibrointia ei ole tällä hetkellä kehitetty eikä saatavilla. Laitteella harvesteripään kalibrointiin ultraäänellä saadaan työvaiheita vähennettyä ja tehostettua työkoneen toimintaa.BACKGROUND OF THE INVENTION Currently, the calibration of the harvester head is done mechanically. Received — the measurement result is compensated to the harvester's measurement system. Automatic calibration is currently neither developed nor available. With the device for calibrating the harvester head with ultrasound, work steps can be reduced and the operation of the machine can be enhanced.

— Ultraäänen käytöllä kalibroinnissa saavutetaan parempi tarkkuus kuin nykyisellä mekaanisella kalibroinnilla. Nykyisin käytössä oleva kalibrointi on hidasta, mutta ultraäänellä tapahtuva kalibrointi tapahtuu nopeasti. Keksintö on integroitavissa olemassa oleviin harvesteripäihin.— The use of ultrasound in calibration achieves better accuracy than the current mechanical calibration. The calibration currently in use is slow, but the ultrasound calibration is fast. The invention can be integrated into existing harvester heads.

—KEKSINNÖN TARKOITUS N Laitteella harvesteripään kalibrointiin ultraäänellä voidaan tehdä mittaus— PURPOSE OF THE INVENTION N The device for calibrating the harvester head can be used to measure with ultrasound

O N automaattisesti eikä manuaalista mittausta tarvita. Manuaalinen mittaus onON automatically and no manual measurement is required. Manual measurement is

QA <Q epätarkkaa ja työlästä. Lisäksi manuaaliseen kalibrointiin sisältyy inhimillisen N erehdyksen vaara.QA <Q imprecise and laborious. In addition, manual calibration involves the risk of human N error.

I z 25I z 25

NNNN O ITO IT S KEKSINNÖN SELOSTUSS DESCRIPTION OF THE INVENTION

QA N Keksinnölle on tunnusomaista se, että laite hyödyntää ultraäänen eri modulaatioita, esimerkiksi BFSK (binary freguency shift keyed) -mittausmenetelmää sekä TOF (time of flight) -mittausmenetelmää. Tämä laite kiinnitetään harvesteripään rakenteisiin. Laitteessa olevalla anturilla (1, 2) mitataan todellista vetorullien (3, 4) tai karsintaterien (5, 6) etäisyyttä toisiinsa. Saatua mittaustulosta verrataan harvesteripään omaan mittaustulokseen. Mittaustuloksen avulla harvesteripään mittausohjelma saadaan kalibroitua.QA N The invention is characterized by the fact that the device utilizes different modulations of ultrasound, for example the BFSK (binary frequency shift keyed) measurement method and the TOF (time of flight) measurement method. This device is attached to the harvester head structures. The sensor (1, 2) in the device measures the actual distance between the traction rollers (3, 4) or the screening blades (5, 6). The obtained measurement result is compared with the harvester head's own measurement result. With the help of the measurement result, the measuring program of the harvester head can be calibrated.

KUVALUETTELO Seuraavassa keksintöä selostetaan yksityiskohtaisesti viittaamalla oheiseen piirustukseen, jossa kuva 1 esittää harvesteripäätä.LIST OF IMAGES In the following, the invention is explained in detail by referring to the attached drawing, where Figure 1 shows the harvester head.

KEKSINNÖN YKSITYISKOHTAINEN SELOSTUS Laite hyödyntää ultraäänen eri modulaatioita, esimerkiksi BFSK (binary freguency shift keyed) -mittausmenetelmää sekä TOF (time of flight) - mittausmenetelmää.DETAILED DESCRIPTION OF THE INVENTION The device utilizes different modulations of ultrasound, for example the BFSK (binary frequency shift keyed) measurement method and the TOF (time of flight) measurement method.

Tämä laite kiinnitetään harvesteripään rakenteisiin (3, 4, 5, 6). Laitteessa olevilla antureilla (1, 2) mitataan todellista vetorullien (3, 4), karsintaterien (5, 6) tai jonkin muun kiinteän pisteen etäisyyttä toisiinsa.This device is attached to the harvester head structures (3, 4, 5, 6). The sensors (1, 2) in the device measure the actual distance between the traction rollers (3, 4), screening blades (5, 6) or some other fixed point.

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Claims (4)

SUOJAVAATIMUKSETPROTECTION REQUIREMENTS 1. Laite harvesteripään kalibrointiin ultraäänellä, tunnettu siitä, että laitteeseen kuuluu kaksi harvesteripäähän kahteen eri mittauspisteeseen integroitua anturia (1,2), joilla harvesteripään vetorullien (3,4) tai karsintaterien (5,6) etäisyyttä toisiinsa on mitattavissa mittaamalla etäisyys mittauspisteiden välillä.1. Device for calibrating the harvester head with ultrasound, characterized by the fact that the device includes two sensors (1,2) integrated in two different measurement points in the harvester head, with which the distance between the drive rollers (3,4) or the screening blades (5,6) of the harvester head can be measured by measuring the distance between the measurement points. 2. Suojavaatimuksen 1 mukainen laite harvesteripään kalibrointiin ultraäänellä, tunnettu siitä, että anturit (1,2) sijaitsevat harvesteripään vetorullien (3,4) tai karsintaterien (5,6) rakenteissa.2. Device according to claim 1 for calibrating the harvester head with ultrasound, characterized in that the sensors (1,2) are located in the structures of the drive rollers (3,4) or screening blades (5,6) of the harvester head. 3. Suojavaatimuksen 1 tai 2 mukainen laite harvesteripään kalibrointiin ultraäänellä, tunnettu siitä, että ultraääni on moduloitu BFSK (binary freguency shift keyed)- modulaatiolla.3. Device according to claim 1 or 2 for calibrating the harvester head with ultrasound, characterized in that the ultrasound is modulated with BFSK (binary frequency shift keyed) modulation. 4. Suojavaatimuksen 1, 2 tai 3 mukainen laite harvesteripään kalibrointiin ultraäänellä, tunnettu siitä, että mittaus on suoritettavissa mittaamalla ultraäänen mittauspisteiden välistä kulkuaikaa TOF (time of flight). Ql4. A device according to claim 1, 2 or 3 for calibrating the harvester head with ultrasound, characterized by the fact that the measurement can be performed by measuring the TOF (time of flight) between the ultrasound measurement points. Ql NOF OO NOF O <QO < Q N oNo I jami aI Jami a NOF OO OO SS NOF OO NOF DD
FIU20210062U 2021-06-01 2021-06-01 Device for ultrasonic calibration of the harvester head FI13231Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FIU20210062U FI13231Y1 (en) 2021-06-01 2021-06-01 Device for ultrasonic calibration of the harvester head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FIU20210062U FI13231Y1 (en) 2021-06-01 2021-06-01 Device for ultrasonic calibration of the harvester head

Publications (1)

Publication Number Publication Date
FI13231Y1 true FI13231Y1 (en) 2022-06-30

Family

ID=82399798

Family Applications (1)

Application Number Title Priority Date Filing Date
FIU20210062U FI13231Y1 (en) 2021-06-01 2021-06-01 Device for ultrasonic calibration of the harvester head

Country Status (1)

Country Link
FI (1) FI13231Y1 (en)

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