DE10329472A1 - Crop density determination device, comprises an optoelectronic distance sensor for measuring crop height with the resultant measurement signal used by a control unit program to control fertilizer or muck spreading - Google Patents

Crop density determination device, comprises an optoelectronic distance sensor for measuring crop height with the resultant measurement signal used by a control unit program to control fertilizer or muck spreading

Info

Publication number
DE10329472A1
DE10329472A1 DE2003129472 DE10329472A DE10329472A1 DE 10329472 A1 DE10329472 A1 DE 10329472A1 DE 2003129472 DE2003129472 DE 2003129472 DE 10329472 A DE10329472 A DE 10329472A DE 10329472 A1 DE10329472 A1 DE 10329472A1
Authority
DE
Germany
Prior art keywords
determined
sensor
density
plant
crop
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.)
Withdrawn
Application number
DE2003129472
Other languages
German (de)
Inventor
Andreas Dipl.-Ing. Linz
Johannes Dipl.-Ing. Dr. Marquering
Arno Prof. Dr. Ruckelshausen
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.)
Amazonen Werke H Dreyer GmbH and Co
Original Assignee
Amazonen Werke H Dreyer GmbH and Co
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 Amazonen Werke H Dreyer GmbH and Co filed Critical Amazonen Werke H Dreyer GmbH and Co
Priority to DE2003129472 priority Critical patent/DE10329472A1/en
Priority claimed from DK04014941T external-priority patent/DK1493316T3/en
Publication of DE10329472A1 publication Critical patent/DE10329472A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01BSOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B79/00Methods for working soil
    • A01B79/005Precision agriculture
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C21/00Methods of fertilizing, sowing or planting
    • A01C21/007Determining fertilization requirements

Abstract

Device comprises a sensor that transmits a signal via a transmitter to the receiver of an onboard computer. The sensor is an optoelectronic distance sensor with which the height of a crop can be determined. The onboard computer determined crop density using a program loaded in its memory.

Description

  • The The invention relates to a device for measuring plant density according to the preamble of claim 1.
  • In the DE 195 28 663 A1 is a method for setting a mobile machine, including a fertilizer spreader, so a distributor described. In this case, an advance scan is carried out by means of a suitable sensor in order to determine, among other things, the stock level or the expected yield.
  • Of the Invention is the object of an inexpensive sensor for Green mass determination propose.
  • These The object is achieved by the characterizing features of claim 1 solved. As a result of these measures can be determined in a simple manner with a low-cost sensor, the green mass become. The green mass is a measure of population density. Based on the determined values determine the required amount of fertilizer. On the basis of the determined values, the distributor can then be used accordingly adjusted to an optimal fertilizer application accordingly the actual determined green mass to enable.
  • A easy determination of crop density, i. the green mass becomes achieved by an evaluation program in a simple manner thereby that in the evaluation program a statistical relationship between Number of "ground" signals and "plant" signals stored is and on the basis of this deposited relationship by the comparison with the currently determined conditions the actual Inventory density determined online and based on the online determined Values by means of a stored program corresponding to the distributor is adjustable.
  • in this connection is then deposited from the determined stocking density by means of the Program determines the site-specific fertilizer needs and the distribution machine adjusted accordingly.
  • Further Details of the invention are the example description and the Drawings to take. Show here
  • 1 the arrangement of the sensor on a distributor in side view and in schematic representation,
  • 2 a further arrangement of the sensors with respect to a distributor in the plan view,
  • 3 a further arrangement of the sensors with respect to a distributor in the plan view and in schematic representation,
  • 4 a further representation of the arrangement of the sensors with respect to a distributor in a schematic representation and in plan view,
  • 5 Representation of the measuring principle of the triangulation sensor,
  • 6 the evaluation of the data in a functional flowchart,
  • 7 the measuring principle on the basis of a grain stock and
  • 8th the representation of the signals in a diagram.
  • In the execution after 1 is the sensor 1 the apparatus for measuring the crop density at the side of a distributor 2 arranged. This distributor 2 is from a tug 3 worn over the field.
  • According to 2 is the sensor 1 the device for measuring the plant density on a rod 4 behind a distributor 2 that of a farm tractor 3 is worn is arranged. In this device are a total of three sensors 1 intended.
  • According to 3 are the sensors 1 the device for measuring the crop density at the rear lateral ends of a distributor 2 arranged. This distributor 2 is from a tug 3 worn over the field.
  • According to 4 are the sensors 1 the device for measuring the plant density on a rod 5 , which is on the front of the farm tractor 2 which is a distributor 2 wears arranged.
  • The sensor 1 for measuring the plant density is designed as Trianulationssensor. The operating principle of this sensor is in 5 shown. The triangulation sensor 1 has a trained as a transmitter light emitting laser diode 6 on. This laser diode 6 send the light 7 through a lens 8th the optics in the direction of the ground 9 and the plants 10 , The reflected light 11 is through the receiving lens 12 directed and optics arrives at the position sensor designed as a receiver 13 , About as a lens 8th trained lens is a light spot projected onto the measuring lens, floor, plant and is diffusely reflected from there. This point is about the lens 12 on the position sensor 13 (Receiver) shown. The position sensor 13 provides a position-dependent analog output voltage which is proportional to the measuring path (distance sensor measuring object).
  • The 6 shows the evaluation principle of the different sensors 1 received value and the transmitted measured values to an electronic computer. Depending on the number of sensors, the measured values in the controller 14 evaluated and calculated. In this controller 14 the stock height is determined from the height measurement during the crossing. Due to the vorilderten measuring principle of the triangulation sensor is the 8th shown statistical distribution 15 reaches the sensor signals.
  • In 7 the determination of the stand height B is shown, wherein the distance a is the plant height b plus the lane depth c of the tractor. In addition to the absolute stand height b, b 'results from the statistics, the ratio between the number of floor hits and the stock hits, from which the stock height accordingly 6 can be determined. From the correlation between stand height and density of the stock conclusions on the fertilizer supply of the plants are drawn.
  • In particular, as out 6 results, the measurement is carried out to determine the green mass of the plant population by means of one or more triangulation sensors 1 , These triangulation sensors, which are a transmitter 6 and receiver 13 have corresponding signals to an on-board computer. By means of the sensor 1 the stock level of the plant stock can be determined. From the signals, the plant density can be determined by means of an evaluation program stored in the on-board computer in a storage medium.
  • In The evaluation program has a statistical relationship between the number of ground signals and Plant signals filed. Based on this deposited relationship is determined by comparison with the currently determined conditions the actual population density, i.e. the green mass determined online. Based on the values determined online, it is possible to use a stored program, the distribution machine accordingly adjustable. Thus, from the determined stocking density by means of the deposited Program of site-specific fertilizer needs can be determined. The Distributor will adjust accordingly for the detected fertilizer demand is discharged through the distributor.

Claims (3)

  1. Device for measuring the plant density, in particular the green mass of the crop of an agricultural crop area for controlling and / or regulating an agricultural distribution machine, the device having at least one signal to an on-board computer sensor with a transmitter and a receiver, characterized in that the sensor Triangulationssensor is formed, which can be determined by means of the sensor, the stock level of the plant population, and the plant stock density can be determined from the signals by means of a stored in the on-board computer in a storage medium evaluation program.
  2. Device according to claim 1, characterized in that that in the evaluation program a statistical relationship between Number of "ground" signals and "plant" signals stored is and on the basis of this deposited ratio by the adjustment with the currently determined conditions the actual Inventory density determined online and based on the online determined Values by means of a stored program corresponding to the distributor is adjustable.
  3. Device according to claim 2, characterized in that that from the determined stocking density by means of the deposited Program of site-specific fertilizer needs can be determined, and that the distributor is adjustable accordingly.
DE2003129472 2003-07-01 2003-07-01 Crop density determination device, comprises an optoelectronic distance sensor for measuring crop height with the resultant measurement signal used by a control unit program to control fertilizer or muck spreading Withdrawn DE10329472A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2003129472 DE10329472A1 (en) 2003-07-01 2003-07-01 Crop density determination device, comprises an optoelectronic distance sensor for measuring crop height with the resultant measurement signal used by a control unit program to control fertilizer or muck spreading

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE2003129472 DE10329472A1 (en) 2003-07-01 2003-07-01 Crop density determination device, comprises an optoelectronic distance sensor for measuring crop height with the resultant measurement signal used by a control unit program to control fertilizer or muck spreading
DK04014941T DK1493316T3 (en) 2003-07-01 2004-06-25 Apparatus for measuring vegetation density
AT04014941T AT385671T (en) 2003-07-01 2004-06-25 Device for measuring the plant stock density
EP04014941A EP1493316B1 (en) 2003-07-01 2004-06-25 Apparatus for measuring the density of the vegetation
DE502004006160T DE502004006160D1 (en) 2003-07-01 2004-06-25 Device for measuring plant density
PL04014941T PL1493316T3 (en) 2003-07-01 2004-06-25 Apparatus for measuring the density of the vegetation

Publications (1)

Publication Number Publication Date
DE10329472A1 true DE10329472A1 (en) 2005-01-27

Family

ID=33546751

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2003129472 Withdrawn DE10329472A1 (en) 2003-07-01 2003-07-01 Crop density determination device, comprises an optoelectronic distance sensor for measuring crop height with the resultant measurement signal used by a control unit program to control fertilizer or muck spreading

Country Status (1)

Country Link
DE (1) DE10329472A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006008331B4 (en) * 2006-02-20 2008-02-14 Leibniz-Institut für Agrartechnik Potsdam-Bornim e.V.(ATB) Device for height guidance of sensors or actuators on agricultural machines
EP2057875A1 (en) 2007-11-08 2009-05-13 Leibniz-Institut für Agrartechnik Potsdam-Bornim e.V. (ATB) Method and assembly for recording plant resources on agricultural machines
DE102008009753B3 (en) * 2008-02-18 2009-09-10 Yara International Asa Method for contactless determination of biomass and morphological parameter of plant populations, involves treating plants of populations with ultrasound by releasing acoustic pulses from ultrasound source
DE102011120858A1 (en) 2011-12-13 2013-06-13 Yara International Asa Method and device for contactless determination of plant parameters and for processing this information
DE102018128378A1 (en) 2018-11-13 2020-05-14 Amazonen-Werke H. Dreyer Gmbh & Co. Kg Method for determining the distance of a rod from an agricultural area and / or its plant population

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006008331B4 (en) * 2006-02-20 2008-02-14 Leibniz-Institut für Agrartechnik Potsdam-Bornim e.V.(ATB) Device for height guidance of sensors or actuators on agricultural machines
EP2057875A1 (en) 2007-11-08 2009-05-13 Leibniz-Institut für Agrartechnik Potsdam-Bornim e.V. (ATB) Method and assembly for recording plant resources on agricultural machines
DE102008009753B3 (en) * 2008-02-18 2009-09-10 Yara International Asa Method for contactless determination of biomass and morphological parameter of plant populations, involves treating plants of populations with ultrasound by releasing acoustic pulses from ultrasound source
DE102011120858A1 (en) 2011-12-13 2013-06-13 Yara International Asa Method and device for contactless determination of plant parameters and for processing this information
WO2013087052A1 (en) 2011-12-13 2013-06-20 Yara International Asa Method and apparatus for contactlessly determining plant parameters and for processing this information
DE102018128378A1 (en) 2018-11-13 2020-05-14 Amazonen-Werke H. Dreyer Gmbh & Co. Kg Method for determining the distance of a rod from an agricultural area and / or its plant population
EP3653052A1 (en) 2018-11-13 2020-05-20 Amazonen-Werke H. Dreyer GmbH & Co. KG Method for detecting the distance between a rod and an agricultural area and plants on same

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Legal Events

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8139 Disposal/non-payment of the annual fee