EP1718997A1 - Radar de proximite comportant des detecteurs multiples servant a localiser des objets inclus dans un milieu - Google Patents

Radar de proximite comportant des detecteurs multiples servant a localiser des objets inclus dans un milieu

Info

Publication number
EP1718997A1
EP1718997A1 EP04804841A EP04804841A EP1718997A1 EP 1718997 A1 EP1718997 A1 EP 1718997A1 EP 04804841 A EP04804841 A EP 04804841A EP 04804841 A EP04804841 A EP 04804841A EP 1718997 A1 EP1718997 A1 EP 1718997A1
Authority
EP
European Patent Office
Prior art keywords
sensor
radar
detection signal
sensors
medium
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Withdrawn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
EP04804841A
Other languages
German (de)
English (en)
Inventor
Uwe Skultety-Betz
Bjoern Haase
Michael Mahler
Ulli Hoffmann
Reiner Krapf
Christoph Wieland
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1718997A1 publication Critical patent/EP1718997A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • G01V3/12—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with electromagnetic waves
    • 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/86—Combinations of radar systems with non-radar systems, e.g. sonar, direction finder
    • 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/03—Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
    • G01S7/032—Constructional details for solid-state radar subsystems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V11/00—Prospecting or detecting by methods combining techniques covered by two or more of main groups G01V1/00 - G01V9/00
    • 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
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
    • G01V3/088—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices operating with electric fields
    • 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/0209—Systems with very large relative bandwidth, i.e. larger than 10 %, e.g. baseband, pulse, carrier-free, ultrawideband
    • 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/885—Radar or analogous systems specially adapted for specific applications for ground probing

Definitions

  • the invention relates to a radar measuring device, in particular a hand-held short-range radar, for locating objects enclosed in a medium and to the method on which the measuring device is based according to the preamble of claim 1 and claim 10.
  • a radar measuring device uses a radar sensor device which has a high-frequency Detection signal generated in the form of a broadband, electromagnetic pulse and sends this pulse into the medium to be examined.
  • An object enclosed in the medium reflects the incoming pulse.
  • information about the object enclosed in the medium can be obtained.
  • Such a radar device is known for example from WO 96/19737 AI.
  • a radar device such. B. objects enclosed in a wall or in the ground can be detected with high accuracy. So that z. B. in the case of holes in a wall, the objects enclosed therein - such as steel reinforcements, power lines, water pipes and the like - are safe from destruction, the craftsman should have precise information about a location, i.e. H. the path position on the wall surface and the depth in the wall of the enclosed object are conveyed.
  • a radar device as also described in WO 96/19737 AI, usually consists of a "front end" - that is a transmitting and receiving unit - and one
  • the front end disclosed in WO 96/19737 AI has a shielded room for electrical circuits and two rooms adjoining this room which are designed as a transmitting antenna and receiving antenna.
  • the cavities for the transmitting and receiving antennas have the shape of horns in which radiator elements (e.g. in the form of wires) are installed.
  • the shielding of the space accommodating the circuits is done on the one hand by a housing placed on the circuit board for the circuits and on the other hand by the walls of the antenna horns which are fixed on the side of the circuit board opposite the circuits.
  • a radar device or an integrated circuit for a radar device in a hermetically sealed housing with a patch antenna formed from a bent sheet metal part is known.
  • the compact and inexpensive radar device of WO 02/063334 A2 has a cavity with a radiator element arranged therein and a shielded space for electrical circuits.
  • the housing is shaped so that it forms both the shielded space for the circuits and the cavity for the antenna element.
  • the short-range radar according to the invention or the underlying method for locating objects enclosed in a medium processes, in addition to the detection signal of the at least one radar sensor, at least one further detection signal.
  • a broadband pulse radar which generates a high-frequency detection signal in the form of an electromagnetic pulse, sends this pulse into the medium to be examined and detects and evaluates a pulse reflected by the medium or by an object enclosed in the medium.
  • By evaluating the high-frequency detection signal information about the position of the object enclosed in the medium can be obtained.
  • UWB Ultrawideband-Radar
  • UWB Ultrawideband-Radar
  • the method according to the invention also evaluates at least one additional detection signal. By means of this additional detection signal, it is advantageously possible to obtain additional information about the enclosed one
  • the combination of the information obtained from the at least two detection signals makes it possible, for example, in addition to a pure location of the object, i.e. the determination of the object position or object depth, also an identification of the object.
  • different materials can be differentiated in this way. If such a measuring device is used, for example, in front of deep bores in a wall, then in addition to the pure location of the object, a statement can already be made in advance about the "dangerousness" of the medium hit enclosed objects. If necessary, current-carrying lines can be distinguished from wooden beams or the like.
  • the antenna plates can also be used as electrodes of a measuring capacitor. Additional capacitor areas that would increase the installation space required for the measuring device are not necessary in this advantageous embodiment. In this way, a compact, in particular hand-held, measuring device can be realized.
  • high-frequency capacitive sensors or also ordinary low-frequency sensors such as those used in "students" can be represented.
  • the control of the antenna device can be modulated in such a way that it alternates between the high-frequency excitation and the low-frequency mode of operation is switched down ("quasi-parallel operation"). It is also possible, for example, the
  • the antenna of the radar sensor according to the invention in such a way that it works in the manner of a mains voltage detector which can capacitively detect the AC field, for example a mains voltage line.
  • the antenna would be passive, i.e. work without generating an electric field, and thus make it possible to show the location and the course of mains voltage lines, for example in walls.
  • the use of additional detection signals permits a more precise location of the enclosed objects, since the sensor generating the first detection signal can be optimized on the basis of the measurement results of the second detection signal and adapted to the specific measurement situation.
  • a capacitive sensor detects a wooden stud wall by measuring the dielectric impedance.
  • the radar sensor integrated in the device can then be operated in such a way that air inclusions are measured but are not shown in the device display. This can be achieved, for example, by the signal processing downstream of the radar sensor using the signals of the air inclusions established common averaging procedures. In this way, the radar sensor can be operated optimally.
  • the at least one further detection signal which is used for evaluation and information acquisition, is generated by at least one further sensor.
  • Sensors for the different detection signals make it possible to carry out the measurements in parallel, which not least means reducing the measuring time.
  • an inductive sensor makes it possible to distinguish between metallic and non-metallic objects.
  • the preliminary image is obtained by:
  • the method according to the invention advantageously also allows a specific search for specific objects.
  • a suitable circuit that controls a predefined search routine can be used, for example, to search specifically for electrical cables or metals. Cavities or other objects that also exist in the wall and do not meet the search criteria can then be hidden on the display of the measuring device, for example, so that a user only receives the desired information. It is thus possible with the method according to the invention to display metals, current-carrying electrical lines, plastics or even objects made of wood or cavities in the display of the measuring device, for example one after the other or simultaneously. In this way, it is also possible, for example, to carry out material thickness measurements, such as, for example, concrete coverings in reinforced concrete buildings or screed thickness measurements in underfloor heating with the measuring device according to the invention.
  • the detection signals of a whole series of sensors are used for evaluation.
  • sensors can be, for example, radar sensors, capacitive sensors, inductive sensors, photometric sensors, such as infrared sensors, or also ultrasonic sensors. These sensors are connected individually or in groups. This can be done manually or automatically, for example. controlled by a corresponding routine, which is stored in a memory element of the measuring device.
  • a special, programmed scenario is recognized during the measurement of one or more sensors, ie if one or more sensors provides information on, for example, a special material, then all sensors are set to this program or the sensor control and evaluation is optimized for the now known material , In this way it is possible to deliver more accurate results because For example, you can work with sensitivities of the individual sensors that are optimally matched to the identified object.
  • a plurality of sensors are integrated in a common housing of the measuring device.
  • the sensors can be arranged on a common circuit board, for example. For example, it is advantageous to align the sensors all on a common axis, so that the corresponding detection signals are directed to one and the same point.
  • the device has a displacement sensor system, not only can the current signal levels of the various sensors be measured, but signal curves can also be recorded and displayed. This also enables a 2-dim representation on the display of the measuring device, in which, in addition to path information, depth information is also shown. This differs in an advantageous manner from
  • Metal location devices of the prior art in which the current measurement result is usually displayed at the location of the measurement via one or more optical signal lamps.
  • a particularly advantageous embodiment of the measuring device results when external sensors are used, which can be coupled to the measuring device and the sensors present therein by means of a plug-in module and a corresponding interface.
  • the measuring device according to the invention is thus designed as a cost-saving, compact multifunction device which advantageously has a simple, hand-held operation permitted by the user moving the measuring device, for example, on a wall to be examined.
  • the measurement results are communicated to him in an intuitively easily accessible graphical representation directly on a display of the measuring device, so that he can take a direct look at the wall to be examined and thus, for example, decide at which point on the wall one
  • FIG. 1 shows the schematic structure of a radar measuring device according to the invention
  • FIG. 2 shows a section through the sensor device of a first exemplary embodiment of the radar measuring device according to the invention
  • FIG. 3 shows the exemplary embodiment of the radar measuring device according to the invention according to FIG. 2 in a schematic bottom view
  • FIG. 4 shows the sensor unit of a second exemplary embodiment of a radar measuring device according to the invention in a bottom view analogous to FIG. 3
  • 5 shows a further exemplary embodiment of the sensor unit of a radar measuring device according to the invention in a representation analogous to FIG. 3 and FIG. 4.
  • FIG. 1 shows a schematic illustration of the method on which the invention is based or the basic structure of a radar measuring device for the method according to the invention.
  • the measuring device 62 according to the invention according to the exemplary embodiment in FIG. 1 has an inductive sensor 64, a capacitive sensor 66, a capacitive high-frequency sensor 68 and a photometric sensor 92 in the form of an infrared detector 70. Additional sensors can be present in corresponding exemplary embodiments.
  • the individual sensors are controlled and evaluated by a central control unit 72.
  • the sensors can be switched both individually and in groups or all together.
  • the choice of operating mode, i.e. The selection of which sensors are to be used for a specific measurement can be made on the one hand via a manual mode selector switch 74 which is operated in a control panel, for example a keypad or a program menu
  • Measuring device is integrated and can be operated by a user of his choice.
  • an automatic operating mode selection (“automatic operation”) is also possible via a corresponding control program, which can be stored in a storage medium of the measuring device.
  • the method according to the invention makes it possible to use the various sensors both in parallel, quasi-parallel and in series.
  • switching between individual sensors is very rapid and the corresponding detection signals are generated, measured and evaluated, or for
  • a corresponding evaluation unit 76 evaluates the individual measurement signals from the sensors, compares them with one another and then, for example, optimizes individual sensors as a function of the measurement results of other sensors.
  • different "programs" are written into the control of the individual sensors, for example one
  • Method program a “hollow brick program”, a “plastic program”, etc.
  • Such special search programs can be assigned to the individual sensors. If a special, programmed scenario is detected during a measurement by one or more sensors, i.e. If some sensors provide information on, for example, a special material, all sensors are switched to this program and thus deliver more precise, optimized measurement results, since, for example, you can work with optimally coordinated sensitivities of the individual sensors.
  • the detection signals of all active sensors are evaluated and only those with a clear signal are used exclusively for the downstream data processing.
  • the measurement results of the other sensors are ignored for further evaluation.
  • the evaluation unit 76 is followed by a unit for data processing and a display 78.
  • the data from the evaluation unit 76 are processed and converted into a display mode that is intuitively accessible to the user.
  • the measurement result can be elaborated in the form of a graphic representation of the current measurement situation.
  • the measurement signal is transmitted to the user, for example in the manner of a sectional view through the wall under investigation, via a display integrated in the measuring device, in particular in real time.
  • a corresponding routine can also be provided, which allows each sensor to be included in the result, weighted according to its detection limits. This enables an overall result with "soft" limits, even though each individual sensor has limits for the detection that are defined for itself.
  • fuzzy logic is advantageous.
  • the individual sensors provided for the method can all be integrated in a housing of the measuring device or it is also possible to implement special adaptive variants of the measuring device according to the invention.
  • infrared detector 70 could be placed modularly on measuring device 62 with radar sensor 60, capacitive high-frequency detector 68 and, for example, an inductive detector 64. The control and evaluation of the infrared sensor 70 can then take place via the actual measuring device 62 via a common interface.
  • Figure 2 shows a section through the front end, i.e. through the sensor head 10 of a measuring device according to the invention.
  • the measuring device 62 which is only shown in part in the exemplary embodiment in FIG. 2, has a radar sensor 60 and an inductive sensor 64 in the form of a coil.
  • the sensor device 10 has a housing 14 with a conductive surface.
  • the housing 14 can be realized, for example, from a metal as a one-piece die-cast part, or else through a shaping process from metallized plastic. Metallically conductive coatings are also possible for the housing 14 of the sensor device.
  • the housing of the sensor is one-sided in the direction of a
  • test object is open, encloses essential components of the sensor device and is itself an integral part of this sensor device.
  • the sensor device 10 essentially has three component groups.
  • the first group of these components are electrical circuits 48 for generating and processing the measurement or detection signals.
  • the second assembly of the sensor device comprises the actual radar sensor, which is implemented in the locating device according to the invention by a specially designed antenna 16.
  • a coil arrangement 12 is provided around the housing 14 of the sensor device as a third assembly, which together with corresponding electronic circuits and components 48 forms an inductive one
  • the three different assemblies mentioned are arranged in different, separate subspaces of the sensor head 10. While the coil arrangement 12 of the inductive sensor runs outside the housing 14, the electrical ones Sound circuits 48 and the antenna of the radar sensor 60 are arranged within the housing, but separated from one another by a printed circuit board 18.
  • the circuit board 18 is fixed in the housing 14 at its edges to the housing 14. In the exemplary embodiment according to FIG. 2, the housing has a characteristic shoulder 42 on which the printed circuit board 18 is placed.
  • the housing 14 shaped in this way is installed in a housing of the locating device (not shown) in such a way that the two subspaces for electronics and radar sensor are arranged one above the other.
  • the subspaces 20 and 22 are separated from one another by the printed circuit board 18 such that a first open subspace 20 is formed for the radar sensor and a second closed subspace 22 for the electronic components.
  • the second subspace 22 is formed by a
  • a metallized layer 30 is advantageously integrated on or in the printed circuit board 18, so that the subspace 22 of the housing 14 is enclosed by an electrically conductive surface. In this way, the subspace 22 forms a “Faraday 'see cage” 23, which makes it possible to isolate the electronic components arranged in the subspace 22 from electromagnetic interference.
  • the printed circuit board 18 carries on one side the electrical circuits and components 48 for generating and evaluating the measurement signal.
  • On the other side of the circuit board 18 is an antenna plate 24 of the antenna
  • the first partial space 20 of the housing 14 of the sensor device 10, in which the radar sensor is accommodated, is essentially formed by the surface 32 of the printed circuit board 18 and by side walls 34 of the housing 14. Recesses 36 are integrated in the side walls 34, which enable to anchor the housing 14 of the sensor device in the housing of the measuring device.
  • the first subspace 20 of the housing 14 is open on one side through an opening 54 and essentially supports the antenna 16 of the radar sensor 60.
  • the antenna is formed by the antenna plate 24 fastened on the printed circuit board 18 and the inner surface 38 of the subspace 20 of the housing 14, which forms the ground electrode 21 of the antenna arrangement. In this way it is possible to make the antenna 16 very compact.
  • the first subspace 20 can, as shown in the exemplary embodiment in FIG. 2, be closed by a wall 50 of the associated measuring device in the manner of a radon, as long as this partitioning does not constitute an obstacle to the electrical field of the antenna arrangement 16.
  • the wall 50 can be realized, for example, by one side of a plastic housing of the measuring device according to the invention. In this case, the measuring device according to the invention would be guided with the housing wall 50 over the structure to be measured, for example a ceiling or a floor.
  • the wall 50 also serves to mechanically protect the coupling plate 24 of the radar sensor 16 from damage.
  • the measuring device has a displacement sensor system, so that not only the current signal levels of the various sensors are measured, but also signal profiles can also be recorded and displayed. This also enables a 2-dim representation on the display of the measuring device, in which, in addition to path information, depth information is also shown. This differs in an advantageous manner from location devices of the prior art, in which mostly only the current measurement result is displayed at the current location of the measurement via one or more optical signal lamps.
  • the coil elements 80 of the coil arrangement 12 of an inductive sensor 64 in the measuring device according to the invention are wound around the housing 14 of the sensor device.
  • the coil elements 80 can, for example, be applied to a coil carrier 84 or encapsulated therein.
  • the coil elements 80 are connected to a power supply (not shown further) and the electronic components 48 for control and evaluation via corresponding connecting means.
  • FIG. 3 shows a simplified, schematic illustration of a bottom view of the sensor head 10 of a measuring device according to the invention according to FIG. 2, with the protective wall 50 removed.
  • the antenna plate 24 of the antenna 16 is applied approximately centrally to the sensor board 18.
  • the coil elements 80 of the inductive sensor 64 of the measuring device according to the invention are arranged around the housing 14.
  • the control of the antenna 16 can be modulated in such a way that it is switched back and forth between the high-frequency excitation and the low-frequency operating mode.
  • the antenna arrangement 16 of the locating device according to the invention in accordance with FIG. 2 or FIG. 3 in such a way that it is operated in the manner of a mains voltage detector 65, which can capacitively detect the AC field, for example a mains voltage line.
  • the sensor would work passively, ie without generating an electrical field, and would thus make it possible to show the position and the course of mains voltage lines, for example in walls.
  • the control electronics provided in the measuring device according to the invention make it possible for different detection signals to be generated with only one sensor, in the exemplary embodiment of FIG. 2 or 3 with the antenna arrangement 16 of the radar sensor 60. These detection signals can then be evaluated quasi-parallel or also in series, so that additional information about the object to be measured contained in a medium can be obtained via the evaluation.
  • the radar sensor 60 can be a capacitive sensor, in particular a conventional one, ie. low-frequency capacitive sensor 66, as a mains voltage detector 65, or else as a high-frequency detector 68, are controlled.
  • the detection signals are automatically aligned to one and the same point on the area to be examined. It is therefore always, i.e. even if the detection signal is switched over, the same measurement area is examined. A measurement error by measuring different spatial areas is almost excluded in this embodiment of a measuring device according to the invention.
  • the different detection signals it is possible for the different detection signals to also each have an independent sensor, for example one each
  • the method according to the invention advantageously also allows a specific search for specific objects.
  • a corresponding circuit that controls a predefined search routine can be used, for example, to search specifically for cables or metals carrying lead. Cavities that are also present in the wall can then be automatically hidden on the display of the measuring device or predetermined by the user, Ah. not shown, so that a user receives only the desired information selectively.
  • FIG. 4 shows a further exemplary embodiment of the sensor head 10 of a measuring device according to the invention in a representation analogous to FIG. 3. Same
  • the sensor head 10 of the measuring device according to the invention according to the exemplary embodiment according to FIG. 4 has a transmitting antenna 86 and a receiving antenna 88 of a radar sensor 60.
  • Appropriate control or the geometric shape of the receiving or transmitting antenna 86 or 88 of the radar sensor 60 makes it possible to use one or both of these antennas as an electrode (s) for a capacitive sensor 65, 66, 68, in particular for the capacitive sensor High frequency sensor 68 to use. This avoids having to integrate an additional electrode or two additional electrodes into the housing of the sensor head 10 for the capacitive high-frequency sensor 68.
  • the transmit and receive antennas of the radar sensor 60 can also be realized only by an antenna plate, as has been described above.
  • the Se sorkopf looks like the case shown in Figure 3. In this case, the activation of the antenna 16 would first send out a radar pulse (transmitting antenna) and then switch the antenna to reception, so that the reflected, returning radar pulse would be detected by the same antenna (now the receiving antenna).
  • FIG. 5 shows a further exemplary embodiment of a sensor head of a measuring device according to the invention.
  • a photometric sensor 92 in the form of an infrared sensor 70 is additionally integrated in the sensor head 10 of the measuring device according to the invention.
  • Infrared sensors can be used advantageously where temperatures or temperature differences have to be measured. It is thus possible to implement a quick and reliable temperature measurement using modern IR sensors. In particular, it is possible to measure even very high temperatures of more than 1000 degrees reliably, since this measurement is carried out without contact, only on the basis of the radiant heat.
  • the infrared sensor 70 of the measuring device according to the invention consists, for example, of a semiconductor photodiode, the conductivity of which changes with the incident radiation intensity, this photodiode being specific for wavelengths in the
  • the measuring device in accordance with the exemplary embodiment in FIG. 5, for example in scenarios such as underfloor heating, heating pipes, etc., Ah.
  • Conventional methods use, for example, FR sensor devices, thermal imaging cameras or thermal foils.
  • IR sensor devices With such IR sensor devices of the prior art, the area to be examined is slowly scanned and the local temperature maxima are marked.
  • thermal imaging cameras produce photos in the infrared range that can make slight temperature differences visible.
  • Thermo films are made of a temperature-sensitive material that changes color at higher temperatures.
  • the foils are to be glued to the area to be examined. With all of these methods, however, no depth information of the detected objects can be obtained.
  • the combination of several sensor principles enables the location device according to the invention to quickly and efficiently locate and measure heated or cooled pipes in walls, ceilings or floors. While the IR sensor 70 the rough classification, Ah. A distinction can be made between heated or cooled pipes, and a location of the approximate position of the pipes, can be made by the others in the invention Measuring device integrated sensor principles also determine the exact position, depth and size of the pipes.
  • FIG. 5 shows the sensor device 10, which contains the sensor board 18 for the additional sensor system as a shielded housing 14.
  • the antennas 86 and 88 of the radar sensor 68 are soldered onto the sensor board 18.
  • the antennas are also used as a capacitive high-frequency sensor 68 or capacitance sensor 65, 66. Intelligent software or corresponding electronics quickly switch between the individual operating modes of these sensors.
  • Around the housing 14 is also a
  • Coil arrangement 80 wound for inductive detection A ferrite can optionally be provided for the coil.
  • the type, size and position of the coil windings can be specially shaped.
  • the infrared sensor 70 can also be located inside the housing 14, for example on the
  • the infrared sensor 70 in the form of a removable IR sensor head 73 and to provide it as an additional component 73 for a corresponding capacitive high-frequency locating device.
  • the infrared sensor can then be coupled to the control and evaluation unit of the measuring device via a corresponding interface on the locating device and can also be controlled and evaluated by this.
  • the type of integration of the sensor principles used can be implemented as desired in various exemplary embodiments of the measuring device according to the invention.
  • the data obtained from the additional detection signals can be processed further profitably and thus lead to additional information about the enclosed object.
  • Appropriate data processing can complement the measurement results of the individual sensors and thus lead to a complete picture of the enclosed object.
  • the evaluation of a plurality of detection signals which can be obtained from a combination of several sensors or from a different control of one and the same sensor, advantageously makes it possible, in addition to the location of the enclosed object, for example also for material identification and, for electrical lines, for example also information about the
  • the measuring device according to the invention is thus designed as a cost-saving, compact multifunction device, which advantageously allows simple, hand-held operation.
  • the user travels the measuring device, for example, on a WanA to be examined.
  • the measurement results are shown to him in an intuitively easily accessible, graphic representation directly on a Display of the measuring device communicated so that he can take a "direct look into the wall to be examined" in this way. He can, for example, decide at which point the
  • the locating device according to the invention or the underlying inventive method for locating objects enclosed in a medium is not restricted to the exemplary embodiments shown in the figures.
  • the method according to the invention is not limited to the detection of objects enclosed in walls, floors or ceilings.

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  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

L'invention concerne un radar, en particulier, un radar manuel de proximité, servant à localiser des objets inclus dans un milieu et pourvu d'au moins un détecteur radar (60) émettant un premier signal de détection haute fréquence s'introduisant dans un milieu à examiner, de manière à obtenir des informations concernant un objet situé dans ce milieu, au moyen d'une mesure et d'une évaluation produites par la réflexion du signal de détection émis par ledit détecteur radar (60). Selon l'invention, ce radar comporte au moins un autre détecteur (64, 66, 68, 70, 92) servant à produire au moins un deuxième signal de détection permettant de recueillir des informations concernant l'objet placé dans le milieu. Elle concerne également des procédés associés à ce radar de mesure.
EP04804841A 2004-02-14 2004-12-15 Radar de proximite comportant des detecteurs multiples servant a localiser des objets inclus dans un milieu Withdrawn EP1718997A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004007315A DE102004007315A1 (de) 2004-02-14 2004-02-14 Nahbereichsradar mit Mehrfachsensorik zur Ortung von in einem Medium eingeschlossenen Objekten
PCT/EP2004/053487 WO2005081015A1 (fr) 2004-02-14 2004-12-15 Radar de proximite comportant des detecteurs multiples servant a localiser des objets inclus dans un milieu

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EP1718997A1 true EP1718997A1 (fr) 2006-11-08

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US (1) US7956794B2 (fr)
EP (1) EP1718997A1 (fr)
JP (1) JP5237552B2 (fr)
DE (1) DE102004007315A1 (fr)
WO (1) WO2005081015A1 (fr)

Families Citing this family (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004007316A1 (de) * 2004-02-14 2005-08-25 Robert Bosch Gmbh Infrarot-Ortungsgerät mit Merhfachsensorik
DE102004031626A1 (de) * 2004-06-30 2006-02-02 Robert Bosch Gmbh Verfahren und Vorrichtung zur Materialstärkenbestimmung auf Hochfrequenzbasis
US8253619B2 (en) * 2005-02-15 2012-08-28 Techtronic Power Tools Technology Limited Electromagnetic scanning imager
JP2009500742A (ja) * 2005-07-08 2009-01-08 キャッチャー インコーポレイティド 携帯可能なハンドヘルド型のセキュリティ装置
DE102005037632A1 (de) * 2005-08-09 2007-02-15 Hilti Ag Wanddetektor
DE102005039152A1 (de) 2005-08-17 2007-02-22 Robert Bosch Gmbh Mechanische Trägereinrichtung sowie Messgerät mit einer mechanischen Trägereinrichtung
DE102005052369A1 (de) * 2005-10-31 2007-05-03 Robert Bosch Gmbh Messgerät
DE102005052367A1 (de) * 2005-10-31 2007-05-03 Robert Bosch Gmbh Messgerät und Verfahren zur Ortung von in einem Medium eingeschlossenen Objekten mittels elektromagnetischer HF-Signale
WO2007061322A1 (fr) 2005-11-22 2007-05-31 Navman New Zealand Radar a main
DE102006002666A1 (de) 2006-01-19 2007-07-26 Robert Bosch Gmbh Messgerät
US20070293188A1 (en) * 2006-06-20 2007-12-20 Philip John Houghton Method and system for an audio speaker with proximity sensing
DE102007039570A1 (de) 2006-09-04 2008-03-06 Robert Bosch Gmbh Werkzeugmaschinenüberwachungsvorrichtung
DE102006061581A1 (de) * 2006-12-27 2008-07-03 Robert Bosch Gmbh Elektrowerkzeugvorrichtung
DE102007039834A1 (de) * 2007-08-23 2009-02-26 Robert Bosch Gmbh Radarsensorvorrichtung
IL187708A (en) * 2007-11-28 2013-04-30 Camero Tech Ltd A bone-through radar radar system and a method for operating it
US8251157B2 (en) * 2008-03-07 2012-08-28 Milwaukee Electric Tool Corporation Battery pack for use with a power tool and a non-motorized sensing tool
DE102008041651A1 (de) * 2008-08-28 2010-03-04 Robert Bosch Gmbh Elektrogerät
DE102008043282A1 (de) * 2008-10-29 2010-05-06 Robert Bosch Gmbh Ortungsvorrichtung
DE102008054448A1 (de) * 2008-12-10 2010-06-17 Robert Bosch Gmbh Ortungsgerät
WO2010101631A1 (fr) * 2009-03-03 2010-09-10 Waymond Scott Détection d'objets de surface et enterrés
DE102009027666A1 (de) * 2009-07-14 2011-01-20 Robert Bosch Gmbh UWB-Messgerät
DE102009029021B4 (de) * 2009-08-31 2022-09-22 Robert Bosch Gmbh Sensorsystem zur Umfeldüberwachung an einem mechanischen Bauteil und ein Verfahren zur Ansteuerung und Auswertung des Sensorsystems
DE102009040198A1 (de) 2009-09-07 2011-03-10 Karlsruher Institut für Technologie Radar Sensorik zur Überwachung von Flüssigkeitsansammlungen im menschlichen Körper
DE102009057439B4 (de) * 2009-10-27 2012-09-27 Gerd Reime Vorrichtung und Verfahren zur fehlerfreien kapazitiven Messwerterfassung
DE102009054950A1 (de) 2009-12-18 2011-06-22 Hilti Aktiengesellschaft Handmessgerät
US8842035B2 (en) 2010-04-08 2014-09-23 L-3 Communications Security And Detection Systems, Inc. Sensor head
WO2012024133A2 (fr) * 2010-08-20 2012-02-23 Niitek, Inc. Tête hybride détecteur de métaux et radar pénétrant dans le sol, et procédé de fabrication de celle-ci
DE102010039953A1 (de) * 2010-08-30 2012-03-01 Robert Bosch Gmbh Verfahren zur Lokalisierung von in einem Medium eingeschlossenen Objekten, sowie Messgerät zur Durchführung des Verfahrens
DE102010045084A1 (de) * 2010-09-13 2012-03-15 Rheinmetall Landsysteme Gmbh Kombinierter Bodenradar und Metalldetektor
US8912944B2 (en) * 2011-03-11 2014-12-16 Thomas W. Gow Human presence detector suitable for concealment and using a shaped microwave beam
DE102011079276A1 (de) 2011-07-15 2013-01-17 Hilti Aktiengesellschaft Vorrichtung und Verfahren zum Detektieren eines Objektes in einem Untergrund
DE102011079258A1 (de) 2011-07-15 2013-01-17 Hilti Aktiengesellschaft Verfahren und Vorrichtung zum Detektieren eines Objektes in einem Untergrund
US9194950B2 (en) * 2012-01-19 2015-11-24 Black & Decker Inc. Handheld locating device
DE102012210009A1 (de) * 2012-06-14 2013-12-19 Robert Bosch Gmbh Handwerkzeugvorrichtung
AU2013327016A1 (en) 2012-10-04 2015-04-30 Niitek, Inc. Shieldings for metal detector heads and manufacturing methods thereof
DE102012218174A1 (de) * 2012-10-05 2014-04-10 Robert Bosch Gmbh Ortungsvorrichtung zur Bestimmung einer Objekttiefe
US9223018B2 (en) * 2012-12-19 2015-12-29 Sony Corporation Method for displaying an active radar image and handheld screening device
US9383439B2 (en) 2013-06-27 2016-07-05 The United States of America as represented by the Federal Bureau of Investigation, Dept. of Justice Detection of conductive material in a thin film
DE102013111547B4 (de) * 2013-10-21 2021-01-21 Sick Ag Sensor mit um Drehachse beweglicher Abtasteinheit
EP3099222B1 (fr) 2014-01-28 2020-08-12 Vayyar Imaging Ltd Capteurs destinés à un dispositif portatif
US20150309203A1 (en) * 2014-04-12 2015-10-29 Jeremy James Monroe Electronic drywall fastener locater
CA2951220C (fr) * 2014-06-30 2019-02-26 Bodidata, Inc. Systeme multicapteur portatif permettant de definir la taille d'objets irreguliers
CN104111453B (zh) * 2014-07-03 2017-01-25 武汉滨湖电子有限责任公司 一种单人手持式隔墙探测雷达
DE102014218371A1 (de) * 2014-09-12 2016-03-17 Robert Bosch Gmbh Handmessgerät und Verfahren zu dessen Betrieb
DE102015102557B4 (de) * 2015-02-23 2023-02-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Sichtsystem
EP3073229B1 (fr) * 2015-03-27 2022-06-22 VEGA Grieshaber KG Capteur radar de mesure du niveau de remplissage et capteur de niveau limite intégré
EP3548922B1 (fr) 2016-12-01 2021-12-29 Carrier Corporation Radar portatif
WO2018168591A1 (fr) * 2017-03-13 2018-09-20 株式会社村田製作所 Module
FR3075524B1 (fr) * 2017-12-15 2020-01-03 Alessandro Manneschi Detecteur double technologie a bobines transverses
FR3075523B1 (fr) * 2017-12-15 2020-01-10 Alessandro Manneschi Detecteur double technologie comprenant un capteur inductif et un radar
FR3075397B1 (fr) * 2017-12-15 2020-09-18 Alessandro Manneschi Detecteur double technologie comprenant un capteur inductif et un radar
DE102018105702A1 (de) * 2018-03-13 2019-09-19 HELLA GmbH & Co. KGaA Radareinrichtung, insbesondere für ein Kraftfahrzeug
US11099270B2 (en) * 2018-12-06 2021-08-24 Lumineye, Inc. Thermal display with radar overlay
TR201913129A2 (tr) * 2019-08-29 2021-03-22 Tuerkiye Bilimsel Ve Teknolojik Arastirma Kurumu Tuebitak Araca takili metal ve mayin dedektörü
CN113687340B (zh) * 2021-08-24 2024-02-23 重庆交通大学 一种基于毫米波雷达的远距离运动目标检测方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020130806A1 (en) * 2001-03-12 2002-09-19 Ensco, Inc. Method and apparatus for detecting, mapping and locating underground utilities

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4099118A (en) * 1977-07-25 1978-07-04 Franklin Robert C Electronic wall stud sensor
US4220913A (en) * 1978-05-23 1980-09-02 Electrolocation Limited Apparatus for and methods of electromagnetic surveying of elongated underground conductors
JPS60233584A (ja) * 1984-02-29 1985-11-20 Hitachi Ltd 埋設物探知装置
JPS6190010A (ja) 1984-10-09 1986-05-08 Nippon Denso Co Ltd 計器
JPH0424471Y2 (fr) * 1986-06-14 1992-06-09
EP0331728B1 (fr) * 1986-11-17 1993-09-15 Kabushiki Kaisha Komatsu Seisakusho Detecteur de materiaux enfouis
US5001430A (en) * 1989-06-05 1991-03-19 Heath Consultants, Inc. Apparatus for locating concealed electrical conductors
US5192952A (en) * 1991-06-11 1993-03-09 Johler J Ralph Method and apparatus for transmitting electromagnetic signals into the earth from a capacitor
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
US5774091A (en) 1993-04-12 1998-06-30 The Regents Of The University Of California Short range micro-power impulse radar with high resolution swept range gate with damped transmit and receive cavities
US5457394A (en) * 1993-04-12 1995-10-10 The Regents Of The University Of California Impulse radar studfinder
JP3198316B2 (ja) * 1994-03-30 2001-08-13 日本電信電話株式会社 埋設物探知方法
JPH0933194A (ja) * 1995-07-21 1997-02-07 Geo Saac Kk 地雷探知システム
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
US6415666B1 (en) * 1997-10-07 2002-07-09 Stevens Institute Of Technology Method and apparatus for acoustic detection of mines and other buried man-made objects
JP4000208B2 (ja) * 1997-10-15 2007-10-31 日本無線株式会社 埋設物探査装置
JP2000028746A (ja) * 1998-07-14 2000-01-28 Osaka Gas Co Ltd 地中推進工法における探査方法および装置
EP1287380A2 (fr) * 1999-09-08 2003-03-05 Witten Technologies Inc. Reseau de radar de sondage du sol et circuit de synchronisation
US6246355B1 (en) * 1999-12-22 2001-06-12 Hot/Shot Radar Inspections, Llc Radar cross-section measurement system for analysis of wooden structures
US6670906B1 (en) * 2000-11-20 2003-12-30 Geophysical Survey Systems, Inc. Method for determining accurately coordinates of a GPR antenna relative to a fixed reference
US7180440B2 (en) 2001-02-03 2007-02-20 Robert Bosch Gmbh Integrated circuit for a radar device in a hermetically sealed housing comprising a patch antenna formed from a bent component from sheet metal
JP4588901B2 (ja) 2001-03-02 2010-12-01 株式会社竹中工務店 コンクリートの欠陥検査方法およびコンクリートの欠陥検査装置
US6501414B2 (en) * 2001-04-02 2002-12-31 The United States Of America As Represented By The United States National Aeronautics And Space Administration Method for locating a concealed object
JP2003121554A (ja) * 2001-10-09 2003-04-23 Yunirekku:Kk 地中埋設物探知装置
DE10207425A1 (de) * 2002-02-21 2003-09-04 Bosch Gmbh Robert Verfahren und Meßgerät zur Ortung eingeschlossener Objekte
US6838671B2 (en) * 2002-04-12 2005-01-04 Northrop Grumman Corporation Device and method for the detection of buried objects
US6667709B1 (en) * 2003-01-14 2003-12-23 Witten Technologies Inc. Method and apparatus for detecting leaks in buried pipes by using a selected combination of geophysical instruments

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020130806A1 (en) * 2001-03-12 2002-09-19 Ensco, Inc. Method and apparatus for detecting, mapping and locating underground utilities

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DE102004007315A1 (de) 2005-08-25
WO2005081015A1 (fr) 2005-09-01
US20080036644A1 (en) 2008-02-14
JP2006527842A (ja) 2006-12-07
JP5237552B2 (ja) 2013-07-17
US7956794B2 (en) 2011-06-07

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