WO2003093870A2 - Geophysical survey system - Google Patents

Geophysical survey system Download PDF

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Publication number
WO2003093870A2
WO2003093870A2 PCT/US2003/013028 US0313028W WO03093870A2 WO 2003093870 A2 WO2003093870 A2 WO 2003093870A2 US 0313028 W US0313028 W US 0313028W WO 03093870 A2 WO03093870 A2 WO 03093870A2
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WO
WIPO (PCT)
Prior art keywords
sensor
geo
geophysical survey
data
support vehicle
Prior art date
Application number
PCT/US2003/013028
Other languages
French (fr)
Other versions
WO2003093870A3 (en
Inventor
R. Josh Bowers
Terry L. Hickman
David D. Tyrer
Theodore E. Rekart
Richmond H. Dugger
Original Assignee
Uxb International, Inc.
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 Uxb International, Inc. filed Critical Uxb International, Inc.
Priority to AU2003231138A priority Critical patent/AU2003231138A1/en
Publication of WO2003093870A2 publication Critical patent/WO2003093870A2/en
Publication of WO2003093870A3 publication Critical patent/WO2003093870A3/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H11/00—Defence installations; Defence devices
    • F41H11/12—Means for clearing land minefields; Systems specially adapted for detection of landmines
    • 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
    • G01V3/15—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for use during transport, e.g. by a person, vehicle or boat

Definitions

  • the present invention relates to a portable kinematic induction magnetic survey system for geophysical mapping and, more particularly, to such a system using metal detectors to locate and . display in real time sub-surface objects such as unexploded ordnance, land mines, other hazardous material or utility structures.
  • surveying work flow of this type is characterized by gathering measurements or data on a data collector which is connected to the surveying instrument or sensor.
  • digital information from the data collector is downloaded into a desktop computer for processing and display using software provided by the surveying instrument or sensor vendor.
  • Such surveying systems involve time consuming steps associated with office postprocessing and may require a return visit to the surveyed site in the event there are any problems or inconsistencies with the quality of the data collected. Accordingly, a need has arisen for a geophysical survey system that is not subject to these disadvantages.
  • the new and improved geophysical survey system of the present invention fills this need and provides advantages not found in prior systems.
  • the geophysical survey system of the present invention performs the data processing and display portions of the work flow in near real-time right on the surveying site as the data is being collected, thereby improving the overall quality of the survey by providing a real-time graphical feedback of the data being collected.
  • This new and improved system results in the rapid collection of high quality geophysical data geographically referenced to real-world coordinates with real-time or near real-time display and analysis capabilities in the field at the surveying site.
  • the system of the present invention generally comprises the following components:
  • a sensor system comprising one or more metal detectors and control devices; 2.
  • a portable sensor platform for supporting the metal detectors at a desired height and protecting them from environmental conditions;
  • a geo-reference system for locating a sensor reading relative to the earth
  • a support vehicle for towing or pushing the sensor platform, supporting the power and control hardware for the sensor system and the geo-reference system, and supporting a computer system and software for controlling the collection of, storing, displaying and analyzing the sensor and position data;
  • a control unit on the support vehicle for converting analog data from an analog sensor system to digital data to be transmitted to the computer system; and/or for regulating the power supply to the sensor system.
  • FIG. 1 is a perspective view of a first embodiment of the geophysical survey system of the present invention
  • FIG. 2 is a perspective view of a second embodiment of the geophysical survey system of the present invention.
  • FIG. 3 is a perspective view of a portion of the interior of the support vehicle for towing or pushing the sensor platform and the control and display apparatus mounted therein; and
  • FIG. 4 is an enlarged schematic view of a real-time display of the recorded geophysical data on the computer -screen in the support vehicle.
  • FIG. 1 illustrates a first embodiment of the present invention wherein a support vehicle 10, such as an eight- wheel drive, amphibious, off-road utility vehicle, tows a wheeled, sensor platform 12,preferably formed of non-metallic materials, having mounted thereon a sensor system 14 comprising one or more metal detectors 16 that are supported at a desired or predetermined distance above the ground.
  • the sensor platform 12 may be of any suitable construction and, in one embodiment, may comprise a vertically extending frame 18 which is connected to the tow connection 20 by a plurality of struts 22 or the like.
  • the sensor system 14 is electrically connected to suitable or desired control and display apparatus 24 in the support vehicle 10 for collecting, storing and displaying geophysical data in real time as it is being generated by the sensor system 14 when the sensor platform is being towed over a predetermined area to be surveyed.
  • An antenna 26 for a suitable or desired geo-reference or GPS system may be mounted in any suitable location on the sensor platform 12.
  • the antenna 26 is connected to a GPS receiver (not shown) located in the support vehicle 10.
  • the geo-reference or GPS system serves to locate a sensor reading relative to the earth for real-time display in the support vehicle 10.
  • metal detectors 16 may be used in the sensor system 14 of the present invention, such as a time-domain metal detector which detects both ferrous and non-ferrous metals, or a detector that applies the eddy current pulse induction principle for the detection of metal.
  • FIG. 2 illustrates a second embodiment of the geophysical survey system wherein a support vehicle 110 of any suitable type, such as a large land mine-resistant vehicle has mounted on the front end thereof the wheeled sensor platform 112 on which is mounted a sensor system 114 comprising a plurality of metal detection units 116.
  • the upright metal detection units 116 can be pivoted or moved downwardly so as to be substantially in alignment with the middle or lower metal detection unit for the purposes of covering a larger area- of the survey site during the movement of the sensor platform 112 supporting the metal detection units 116 at a desired or - predetermined distance above the ground.
  • the sensor platform 112 has a GPS antenna 126 mounted on legs 117 thereof.
  • the metal detection units 116 and the GPS antenna 126 are connected to control and display apparatus (not shown) and a GPS receiver (not shown) located in the support vehicle 110.
  • the support vehicle 10, 110 is moved over the survey site so that the metal detectors 16, 116 can generate data as to metal objects such as unexploded ordnance, land mines or other objects located beneath the surface of the survey site.
  • the data generated by the metal detectors is collected, stored and displayed by suitable data processing apparatus located within the support vehicle.
  • the interior of the support .vehicle 10, 110 may be supplied with a suitable power source 30, such as one or more rechargeable batteries, for supplying power to the metal detectors, GPS system and the control and display apparatus located within the t support vehicle.
  • the control and display apparatus may be of any suitable construction and may comprise one or more metal detector control units 32 connected to the metal detectors 16, 116 on the sensor platform 12, 112, a GPS receiver 34 connected to the GPS antenna 26, 126, an oscillator 36 or the like for controlling the metal detector control units 32, and a laptop computer 38 or the like with appropriate software and hardware for controlling the geophysical survey system and displaying the recorded data in real time.
  • a control unit 40 is connected to the power source 30 and the sensor system 14, 114 for regulating the power supply to the sensor system to ensure a uniform power supply thereto for accurate readings therefrom.
  • the control unit 40 may also be used to convert analog data from an analog sensor system to digital data to be transmitted to the computer 38 for storage and display.
  • the control unit 40 may be of any suitable or known construction and operation.
  • the computer screen 42 displays in realtime a graphical feedback of the data being collected by the metal detectors 16, 116 as the sensor platform 12, 112 is being moved over the survey site by the support vehicle 10, 110. Because of the GPS system 34, the graphical feedback of the data on the computer screen 42 is displayed with its location relative to the earth.
  • FIG. 4 illustrates schematically an example of the graphical feedback of the data on the computer screen 42.
  • the survey site was a road 50 and the data displayed shows a number of areas or anomalies where metal objects 52 of various sizes and shapes were located beneath the road surface.
  • the metal objects or anomalies 52 are displayed relative to the road 50 as well as with respect to earth coordinates 54 generated by the GPS system.
  • the geographical survey system of the present invention provides a real- time graphical feedback of the data being collected at the survey site.
  • This new and improved system results in the rapid collection of high quality geophysical data, geographically referenced to real-world coordinates, with real-time or near real-time display and analysis capabilities in the field at the survey site.

Abstract

A geographical survey system for obtaining, recording and displaying data in near real-time at a survey site. The system comprises a sensor system (14) comprising at least one metal detector (16) for detecting buried metal objects such as unexploded ordnance or land mines. A movable sensor platform (12) supports the metal detector (16) at a desired height above the ground. A support vehicle (10) tows or pushes the sensor platform (12) along the ground at the survey site, and comprises a geo-reference system for locating a reading from the metal detector (16) relative to the earth, a power source for the sensor system (14) and geo-reference system, and computer hardware and software for controlling the collection of, storing, displaying and analyzing data from the sensor system and the geo-reference system. A control unit (24) is provided on the support vehicle for regulating the power supply from the power source thereon to the sensor system (14) and the geo-reference system to ensure substantially uniform power to an accurate operation thereof.

Description

GEOPHYSICAL SURVEY SYSTEM
CROSS-REFERENCE TO RELATED APPLICATIONS
The present application incorporates information from and claims the priority of Provisional Patent Application Serial No. 60/375,830 filed on April 29, 2002.
BACKGROUND OF THE INVENTION
The present invention relates to a portable kinematic induction magnetic survey system for geophysical mapping and, more particularly, to such a system using metal detectors to locate and . display in real time sub-surface objects such as unexploded ordnance, land mines, other hazardous material or utility structures.
Traditionally, surveying work flow of this type is characterized by gathering measurements or data on a data collector which is connected to the surveying instrument or sensor. In a remote office, digital information from the data collector is downloaded into a desktop computer for processing and display using software provided by the surveying instrument or sensor vendor. Such surveying systems involve time consuming steps associated with office postprocessing and may require a return visit to the surveyed site in the event there are any problems or inconsistencies with the quality of the data collected. Accordingly, a need has arisen for a geophysical survey system that is not subject to these disadvantages. The new and improved geophysical survey system of the present invention fills this need and provides advantages not found in prior systems.
SUMMARY OF THE INVENTION
The geophysical survey system of the present invention performs the data processing and display portions of the work flow in near real-time right on the surveying site as the data is being collected, thereby improving the overall quality of the survey by providing a real-time graphical feedback of the data being collected. This new and improved system results in the rapid collection of high quality geophysical data geographically referenced to real-world coordinates with real-time or near real-time display and analysis capabilities in the field at the surveying site.
The system of the present invention generally comprises the following components:
1. A sensor system comprising one or more metal detectors and control devices; 2. A portable sensor platform for supporting the metal detectors at a desired height and protecting them from environmental conditions;
3. A geo-reference system for locating a sensor reading relative to the earth;
4. A support vehicle for towing or pushing the sensor platform, supporting the power and control hardware for the sensor system and the geo-reference system, and supporting a computer system and software for controlling the collection of, storing, displaying and analyzing the sensor and position data; and
5. A control unit on the support vehicle for converting analog data from an analog sensor system to digital data to be transmitted to the computer system; and/or for regulating the power supply to the sensor system.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of a first embodiment of the geophysical survey system of the present invention;
FIG. 2 is a perspective view of a second embodiment of the geophysical survey system of the present invention. FIG. 3 is a perspective view of a portion of the interior of the support vehicle for towing or pushing the sensor platform and the control and display apparatus mounted therein; and
FIG. 4 is an enlarged schematic view of a real-time display of the recorded geophysical data on the computer -screen in the support vehicle.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
FIG. 1 illustrates a first embodiment of the present invention wherein a support vehicle 10, such as an eight- wheel drive, amphibious, off-road utility vehicle, tows a wheeled, sensor platform 12,preferably formed of non-metallic materials, having mounted thereon a sensor system 14 comprising one or more metal detectors 16 that are supported at a desired or predetermined distance above the ground. The sensor platform 12 may be of any suitable construction and, in one embodiment, may comprise a vertically extending frame 18 which is connected to the tow connection 20 by a plurality of struts 22 or the like.
The sensor system 14 is electrically connected to suitable or desired control and display apparatus 24 in the support vehicle 10 for collecting, storing and displaying geophysical data in real time as it is being generated by the sensor system 14 when the sensor platform is being towed over a predetermined area to be surveyed. An antenna 26 for a suitable or desired geo-reference or GPS system may be mounted in any suitable location on the sensor platform 12. The antenna 26 is connected to a GPS receiver (not shown) located in the support vehicle 10. The geo-reference or GPS system serves to locate a sensor reading relative to the earth for real-time display in the support vehicle 10.
Any suitable or known metal detectors 16 may be used in the sensor system 14 of the present invention, such as a time-domain metal detector which detects both ferrous and non-ferrous metals, or a detector that applies the eddy current pulse induction principle for the detection of metal.
FIG. 2 illustrates a second embodiment of the geophysical survey system wherein a support vehicle 110 of any suitable type, such as a large land mine-resistant vehicle has mounted on the front end thereof the wheeled sensor platform 112 on which is mounted a sensor system 114 comprising a plurality of metal detection units 116. The upright metal detection units 116 can be pivoted or moved downwardly so as to be substantially in alignment with the middle or lower metal detection unit for the purposes of covering a larger area- of the survey site during the movement of the sensor platform 112 supporting the metal detection units 116 at a desired or - predetermined distance above the ground. The sensor platform 112 has a GPS antenna 126 mounted on legs 117 thereof. The metal detection units 116 and the GPS antenna 126 are connected to control and display apparatus (not shown) and a GPS receiver (not shown) located in the support vehicle 110.
In both of the embodiments shown in Figs. 1 and 2, the support vehicle 10, 110 is moved over the survey site so that the metal detectors 16, 116 can generate data as to metal objects such as unexploded ordnance, land mines or other objects located beneath the surface of the survey site. The data generated by the metal detectors is collected, stored and displayed by suitable data processing apparatus located within the support vehicle.
Referring to FIG. 3, the interior of the support .vehicle 10, 110 may be supplied with a suitable power source 30, such as one or more rechargeable batteries, for supplying power to the metal detectors, GPS system and the control and display apparatus located within the t support vehicle. The control and display apparatus may be of any suitable construction and may comprise one or more metal detector control units 32 connected to the metal detectors 16, 116 on the sensor platform 12, 112, a GPS receiver 34 connected to the GPS antenna 26, 126, an oscillator 36 or the like for controlling the metal detector control units 32, and a laptop computer 38 or the like with appropriate software and hardware for controlling the geophysical survey system and displaying the recorded data in real time. A control unit 40 is connected to the power source 30 and the sensor system 14, 114 for regulating the power supply to the sensor system to ensure a uniform power supply thereto for accurate readings therefrom. The control unit 40 may also be used to convert analog data from an analog sensor system to digital data to be transmitted to the computer 38 for storage and display. The control unit 40 may be of any suitable or known construction and operation.
As shown in FIG. 3, the computer screen 42 displays in realtime a graphical feedback of the data being collected by the metal detectors 16, 116 as the sensor platform 12, 112 is being moved over the survey site by the support vehicle 10, 110. Because of the GPS system 34, the graphical feedback of the data on the computer screen 42 is displayed with its location relative to the earth.
FIG. 4 illustrates schematically an example of the graphical feedback of the data on the computer screen 42. In this example, the survey site was a road 50 and the data displayed shows a number of areas or anomalies where metal objects 52 of various sizes and shapes were located beneath the road surface. The metal objects or anomalies 52 are displayed relative to the road 50 as well as with respect to earth coordinates 54 generated by the GPS system.
From the foregoing description, it will be readily seen that the geographical survey system of the present invention provides a real- time graphical feedback of the data being collected at the survey site. This new and improved system results in the rapid collection of high quality geophysical data, geographically referenced to real-world coordinates, with real-time or near real-time display and analysis capabilities in the field at the survey site.
While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

WHAT IS CLAIMED IS:
L A geophysical survey system for obtaining, recording and displaying data in near real-time at the survey site, said system comprising: a sensor system comprising at leasl one metal detector for detecting buried metal objects such as unexploded ordnance or land mines. a movable sensor platform for supporting said metal detector at a desired height above the ground; a support vehicle for towing or pushing said sensor platform along the ground, said support vehicle comprising a geo-reference system for locating a reading from said metal detector relative to the earth, a power source for said sensor system and said geo-reference system, and computer hardware and software for controlling the collection, storing, displaying and analyzing of data from said sensor system and said geoτ reference system; and a control unit on said support vehicle for regulating the power supply from the power source to said sensor system and said geo-reference system to insure the accurate operation thereof. 2. The geophysical survey system of claim 1 wherein said • sensor system generates analog data, and said control unit comprises apparatus for converting the analog data to digital data for transmission to said computer hardware. 3. The geophysical survey system of claim 1, wherein said sensor system comprises a plurality of metal detectors that are movable relative to each other. 4. The geophysical survey system of claim 1 wherein said movable sensor platform is formed of non-metallic materials and is supported by wheels. 5. The geophysical survey system of claim 1, wherein said support vehicle is an amphibious, off-road utility vehicle. 6. The geophysical survey system of claim 1, wherein said support vehicle is a land mine resistant vehicle. 7. The geophysical survey system of claim 1 wherein said geo-reference system comprises a GPS antenna, receiver and software. 8. The geophysical survey system of claim 1, wherein said geo-reference system comprises a satellite GPS service. 9. The geophysical survey system of claim 1, wherein said power source is a rechargeable heavy duty battery. 10. The geophysical survey system of claim 1, wherein said • computer hardware comprises a screen for displaying the recorded data from the survey site geographically referenced to real world coordinates.
PCT/US2003/013028 2002-04-29 2003-04-28 Geophysical survey system WO2003093870A2 (en)

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AU2003231138A AU2003231138A1 (en) 2002-04-29 2003-04-28 Geophysical survey system

Applications Claiming Priority (2)

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US37583002P 2002-04-29 2002-04-29
US60/375,830 2002-04-29

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012097416A1 (en) * 2011-01-20 2012-07-26 Minelab Electronics Pty Limited Incorporation and use of a position sensor in a metal detector
RU2681271C1 (en) * 2018-05-17 2019-03-05 Федеральное государственное автономное образовательное учреждение высшего образования "Сибирский федеральный университет" Device for searching for mines and mines on the basis of the radar parametric method

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5307272A (en) * 1991-08-19 1994-04-26 The United States Of America As Represented By The United States Department Of Energy Minefield reconnaissance and detector system
US5654637A (en) * 1995-05-19 1997-08-05 Geonics Limited Method for detecting buried high conductivity objects including scaling of voltages for eliminating noise of a particular depth
US5680048A (en) * 1996-08-19 1997-10-21 Net Results, Inc. Mine detecting device having a housing containing metal detector coils and an antenna
CA2234597A1 (en) * 1998-04-09 1999-10-09 Andrew Plummer Landmine detection vehicle
US6026135A (en) * 1997-04-04 2000-02-15 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government Multisensor vehicle-mounted mine detector
US6064209A (en) * 1998-05-18 2000-05-16 Xtech Explosive Decontamination, Inc. Apparatus and process for clearance of unexploded ordinance
US6104193A (en) * 1998-09-15 2000-08-15 Aetc Inc. System and method for detecting low metal content buried mines
US6411095B1 (en) * 1998-05-05 2002-06-25 The Johns Hopkins University Apparatus and method for locating an object

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5307272A (en) * 1991-08-19 1994-04-26 The United States Of America As Represented By The United States Department Of Energy Minefield reconnaissance and detector system
US5654637A (en) * 1995-05-19 1997-08-05 Geonics Limited Method for detecting buried high conductivity objects including scaling of voltages for eliminating noise of a particular depth
US5680048A (en) * 1996-08-19 1997-10-21 Net Results, Inc. Mine detecting device having a housing containing metal detector coils and an antenna
US6026135A (en) * 1997-04-04 2000-02-15 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government Multisensor vehicle-mounted mine detector
CA2234597A1 (en) * 1998-04-09 1999-10-09 Andrew Plummer Landmine detection vehicle
US6411095B1 (en) * 1998-05-05 2002-06-25 The Johns Hopkins University Apparatus and method for locating an object
US6064209A (en) * 1998-05-18 2000-05-16 Xtech Explosive Decontamination, Inc. Apparatus and process for clearance of unexploded ordinance
US6104193A (en) * 1998-09-15 2000-08-15 Aetc Inc. System and method for detecting low metal content buried mines

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
BELL ET AL.: 'Subsurface discrimination using electromagnetic induction sensors' IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSORS vol. 39, no. 6, June 2001, pages 1286 - 1293, XP002971115 *
NELSON ET AL.: 'Multisensor towed array detection system for UXO detection' IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING vol. 39, no. 6, June 2001, pages 1139 - 1145, XP001115768 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012097416A1 (en) * 2011-01-20 2012-07-26 Minelab Electronics Pty Limited Incorporation and use of a position sensor in a metal detector
RU2681271C1 (en) * 2018-05-17 2019-03-05 Федеральное государственное автономное образовательное учреждение высшего образования "Сибирский федеральный университет" Device for searching for mines and mines on the basis of the radar parametric method

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AU2003231138A1 (en) 2003-11-17
AU2003231138A8 (en) 2003-11-17
WO2003093870A3 (en) 2004-03-04

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