EP1360526A1 - Methode de traitement des mesures de resistivite electrique georeferencees pour la cartographie electrique des sols en temps reel - Google Patents
Methode de traitement des mesures de resistivite electrique georeferencees pour la cartographie electrique des sols en temps reelInfo
- Publication number
- EP1360526A1 EP1360526A1 EP02701409A EP02701409A EP1360526A1 EP 1360526 A1 EP1360526 A1 EP 1360526A1 EP 02701409 A EP02701409 A EP 02701409A EP 02701409 A EP02701409 A EP 02701409A EP 1360526 A1 EP1360526 A1 EP 1360526A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- electrical resistivity
- measurement
- measurements
- soil
- positioning
- 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.)
- Ceased
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
- A01B79/005—Precision agriculture
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/38—Processing data, e.g. for analysis, for interpretation, for correction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
Definitions
- This approach responds not only to a search for maximizing the yields of cultivated soils and reducing costs, but also to a more demanding respect for the environment and therefore to a more parsimonious use of the doses of inputs used (seeds, fertilizers, products phytosanitary).
- One method then consists of performing direct measurements, i.e. auger drilling and digging pits.
- direct measurements i.e. auger drilling and digging pits.
- auger drilling and digging pits In addition to the punctual aspect of such measures, they have the disadvantage of being destructive, costly and of modifying the structure of the zone studied after sampling (irreversible effect).
- This type of measurement does not allow the establishment of a reliable and sufficiently detailed mapping of the homogeneous areas of an agricultural plot for Precision Agriculture.
- the invention relates to a method for processing georeferenced electrical resistivity measurements for electrical mapping of soils in which:
- n being at least equal to 3
- the scale of the map of the second display window is defined, by performing a locating tour of the area to be mapped, which is recorded on the computer by a particular programmed procedure,
- the first step of the method represented in FIG. 1, consists in acquiring a set of measurements at given points of a plot of soils to be mapped. These points are defined by the repetition of the same elementary mesh thus cutting the area of this plot into a network of points. Said network of points is therefore defined as a regular arrangement of points in the plane of the surface of the plot of soils. Each point being connected to another in a direction given by the length of the elementary mesh and in a direction perpendicular thereto, by the width of said elementary mesh.
- the dimensions of the elementary mesh in the plane of the surface are typically 0.1 m by 8 m. However, the length of this mesh, or no sampling, can be reduced to a few centimeters in the direction of movement of the measuring means.
- measurement means 1 are moved in the area to be mapped. There is then acquired continuously during the displacement of the measurement means, n electrical resistivity measurements 2 at each point.
- resistivity measurement 2 is meant either a galvanic resistivity measurement or an electrostatic resistivity measurement.
- the current measuring means include a towed alternating current resistivity meter made up of k articulated 3-6 axles.
- a quad 7 can, for example, be used to tow the measuring means 1.
- the term "quad” 7 means a motorcycle with four wheels.
- One of the axles 3 allows the injection of a preferentially regulated current, that is to say of constant intensity, emitted by a source 8 in the soil while the other axles 4-6 measure the resulting potentials by wheel electrodes.
- n is greater than 3.
- the value of the current injected into the soil varies according to the nature of the soils studied but is between 0.1 and 20 mA. : .
- the electrical resistivity measurements 2 are georeferenced. Each resistivity measurement is therefore associated with a pair of coordinates making it possible to locate said measurement geographically in the plane of the surface of the plot of soil to be mapped. These resistivity measurements are in fact triggered by a measurement of the relative position of the measuring means at said point. This relative position measurement can be carried out by a doppler radar, an incremental encoder or any system 9 capable of delivering pulses, preferably TTL, as a function of the movement of the vehicle.
- the triggering of the resistivity measurements by a positioning measurement implies that the resistivity measurements are carried out as a function of the distance traveled and not on a fixed time basis. As a result, whatever the speed of movement of the measurement means in the area to be mapped, the measured points are regularly spaced. The density of measured points is therefore homogeneous.
- the oversampling of the resistivity and relative positioning measurements compared to the absolute positioning measurements allows this processing. False resistivity values resulting, for example, from the loss of contact of one of the electrodes with the ground are thus eliminated.
- the positioning measurements are also refined.
- the median algorithm is implemented for its speed of execution and for the fineness of control of the threshold beyond which the data are rejected.
- the software allows to visualize (step 4, Fig. 1 d)) simultaneously and in real time on two different display windows (Fig. 4), a first sequence showing the variations for a given depth of the resistivity of the ground along of the studied area and a second window showing the positioning of the measurement points.
- the direct control of these measurements by visualization makes it possible to assess the validity of the measurements.
- a special procedure has been programmed to determine the scale of the plot and therefore to be able to fix the dimensions of the window visually representing the location of the measurement means (second window).
- This particular procedure requires the completion of a tracking tour prior to the acquisition of any measurement.
- This turn consists of a continuous displacement of the measuring means 1.
- the tracking turn is also an opportunity to assess the area of variation of the resistivity.
- the positioning window makes it possible to view the positions in the French Lambert system after conversion of the absolute positioning measurements (satellite coordinates).
- the first graphics make it possible to directly view the resistivity measurements as a function of the displacement because the calibration curves of the resistivity meter have been integrated in order to be able to pass from the potentials measured for a regulated current given to the resistances and resistivities.
- the continuous acquisition during the displacement of the measurement means, of n electrical resistivity measurements at each point of a plot of soils requires the implementation of devices and of a measurement chain whose response time is compatible with the speed of movement of said measuring means. This same speed is limited by the nature of the ground, the distance to be traveled between two measurements (the length of the elementary mesh), and by the response time of external devices, for example, spreading means, possibly coupled to said measuring means.
- the processing in real time of the data collected, required by these external devices, is fast enough not to limit the speed of the entire device.
- the computer 12 directly controls these external devices (step 5, Fig. 1 e)).
- spreading means are coupled to the georeferenced measurement means.
- the information on the nature of the soil processed by the computer 12 makes it possible to adapt, in real time, the dose of inputs required for a specific area to be treated.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0101655A FR2820509B1 (fr) | 2001-02-07 | 2001-02-07 | Methode de traitement des mesures de resistivite electrique georeferencees pour la cartographie electrique des sols en temps reel |
FR0101655 | 2001-02-07 | ||
PCT/FR2002/000465 WO2002063344A1 (fr) | 2001-02-07 | 2002-02-06 | Methode de traitement des mesures de resistivite electrique georeferencees pour la cartographie electrique des sols en temps reel |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1360526A1 true EP1360526A1 (fr) | 2003-11-12 |
Family
ID=8859729
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02701409A Ceased EP1360526A1 (fr) | 2001-02-07 | 2002-02-06 | Methode de traitement des mesures de resistivite electrique georeferencees pour la cartographie electrique des sols en temps reel |
Country Status (5)
Country | Link |
---|---|
US (1) | US20040158403A1 (fr) |
EP (1) | EP1360526A1 (fr) |
CA (1) | CA2437625A1 (fr) |
FR (1) | FR2820509B1 (fr) |
WO (1) | WO2002063344A1 (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6597992B2 (en) * | 2001-11-01 | 2003-07-22 | Soil And Topography Information, Llc | Soil and topography surveying |
DE102007035214A1 (de) * | 2007-07-25 | 2009-02-05 | Institut für Gemüse- und Zierpflanzenbau e.V. | Mobiles Messsystem für eine elektrische Bodenuntersuchung |
EP2026106B2 (fr) * | 2007-08-02 | 2015-03-04 | Vallon GmbH | Procédé destiné à la représentation géoréférencée de valeurs de mesure calculées à l'aide de détecteurs au sol d'un champ de mesure et détecteur destiné à l'utilisation |
EP2883020B2 (fr) | 2012-08-10 | 2021-09-22 | The Climate Corporation | Systèmes et procédés de commande, de surveillance et de cartographie d'applications agricoles |
US11015912B2 (en) | 2018-11-21 | 2021-05-25 | Cnh Industrial America Llc | System for monitoring seedbed floor conditions and related methods |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995018432A1 (fr) * | 1993-12-30 | 1995-07-06 | Concord, Inc. | Systeme de navigation dans les champs |
US5646846A (en) * | 1994-05-10 | 1997-07-08 | Rawson Control Systems | Global positioning planter system |
US5938709A (en) * | 1996-11-22 | 1999-08-17 | Case Corporation | Panning display of GPS field maps |
US5878371A (en) * | 1996-11-22 | 1999-03-02 | Case Corporation | Method and apparatus for synthesizing site-specific farming data |
US5841282A (en) * | 1997-02-10 | 1998-11-24 | Christy; Colin | Device for measuring soil conductivity |
US6141614A (en) * | 1998-07-16 | 2000-10-31 | Caterpillar Inc. | Computer-aided farming system and method |
US6404203B1 (en) * | 1999-10-22 | 2002-06-11 | Advanced Geosciences, Inc. | Methods and apparatus for measuring electrical properties of a ground using an electrode configurable as a transmitter or receiver |
US6405135B1 (en) * | 2000-07-18 | 2002-06-11 | John J. Adriany | System for remote detection and notification of subterranean pollutants |
US6674286B2 (en) * | 2001-04-18 | 2004-01-06 | Advanced Geosciences, Inc. | Methods and apparatus for measuring electrical properties of a ground using a graphite electrode |
-
2001
- 2001-02-07 FR FR0101655A patent/FR2820509B1/fr not_active Expired - Lifetime
-
2002
- 2002-02-06 US US10/470,269 patent/US20040158403A1/en not_active Abandoned
- 2002-02-06 EP EP02701409A patent/EP1360526A1/fr not_active Ceased
- 2002-02-06 CA CA002437625A patent/CA2437625A1/fr not_active Abandoned
- 2002-02-06 WO PCT/FR2002/000465 patent/WO2002063344A1/fr not_active Application Discontinuation
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO02063344A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR2820509B1 (fr) | 2004-05-14 |
WO2002063344A1 (fr) | 2002-08-15 |
US20040158403A1 (en) | 2004-08-12 |
FR2820509A1 (fr) | 2002-08-09 |
CA2437625A1 (fr) | 2002-08-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Broxton et al. | Improving snow water equivalent maps with machine learning of snow survey and lidar measurements | |
Unwin et al. | Spaceborne GNSS-reflectometry on TechDemoSat-1: Early mission operations and exploitation | |
Nield et al. | Aeolian sand strip mobility and protodune development on a drying beach: examining surface moisture and surface roughness patterns measured by terrestrial laser scanning | |
Vinci et al. | Measuring rill erosion by laser scanning | |
Foster et al. | A blended global snow product using visible, passive microwave and scatterometer satellite data | |
Zhang et al. | Soil moisture content retrieval from Landsat 8 data using ensemble learning | |
Mohseni et al. | Ocean water quality monitoring using remote sensing techniques: A review | |
Mouazen et al. | Influence of soil moisture content on assessment of bulk density with combined frequency domain reflectometry and visible and near infrared spectroscopy under semi field conditions | |
WO2020063529A1 (fr) | Procédé et appareil de détection de données de précipitation basés sur un algorithme de forêts aléatoires et dispositif électronique | |
King et al. | Evaluation of lidar-derived snow depth estimates from the iPhone 12 pro | |
Walker et al. | Accuracy assessment of late winter snow depth mapping for tundra environments using Structure-from-Motion photogrammetry | |
FR3039646A1 (fr) | Procede et systeme pour rechercher des pertes hydriques a travers l4analyse d'images generes par des systemes de teledetection | |
Tan et al. | Water quality estimation of River plumes in Southern Lake Michigan using Hyperion | |
EP1360526A1 (fr) | Methode de traitement des mesures de resistivite electrique georeferencees pour la cartographie electrique des sols en temps reel | |
Snehmani et al. | Remote sensing of mountain snow using active microwave sensors: a review | |
Franceschi et al. | Terrestrial laser scanner imaging reveals astronomical forcing in the Early Cretaceous of the Tethys realm | |
Guo et al. | Soil moisture retrieval using BuFeng-1 A/B based on land surface clustering algorithm | |
Rahmani et al. | Soil moisture retrieval using space-borne GNSS reflectometry: a comprehensive review | |
FR2725792A1 (fr) | Procede pour evaluer des effets non-euclidiens affectant une image obtenue avec un radar spatial, et satellite pour sa mise en oeuvre | |
Dedieu et al. | Interpretation of a RADARSAT-2 fully polarimetric time-series for snow cover studies in an Alpine context–first results | |
Leanza et al. | Novel measurements and features for the characterization of soil surface roughness | |
EP0422985B1 (fr) | Procédé et dispositif de détection des inversions du champ magnétique terrestre par mesures dans un trou de forage | |
Yang et al. | Examining the consistency of lidar attenuation coefficient K lidar from ICESat-2 and diffuse attenuation coefficient K d from MODIS | |
FR2938074A1 (fr) | Procede de traitement de profils verticaux mesures de la puissance des echos renvoyes suite a une emission de signaux radar. | |
Dong et al. | Soil Moisture retrieval in Southeast China from spaceborne GNSS-R measurements |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20030908 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: GEOCARTA |
|
17Q | First examination report despatched |
Effective date: 20080904 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: GEOCARTA |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R003 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
|
18R | Application refused |
Effective date: 20181010 |