WO2025124792A1 - Capteur, support et système de capteur - Google Patents

Capteur, support et système de capteur Download PDF

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Publication number
WO2025124792A1
WO2025124792A1 PCT/EP2024/080656 EP2024080656W WO2025124792A1 WO 2025124792 A1 WO2025124792 A1 WO 2025124792A1 EP 2024080656 W EP2024080656 W EP 2024080656W WO 2025124792 A1 WO2025124792 A1 WO 2025124792A1
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
fastening device
fastening element
annular
annular fastening
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.)
Pending
Application number
PCT/EP2024/080656
Other languages
German (de)
English (en)
Inventor
Fabian Witt
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.)
Vega Grieshaber KG
Original Assignee
Vega Grieshaber KG
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 Vega Grieshaber KG filed Critical Vega Grieshaber KG
Publication of WO2025124792A1 publication Critical patent/WO2025124792A1/fr
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/30—Supports specially adapted for an instrument; Supports specially adapted for a set of instruments
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • G01F23/292—Light, e.g. infrared or ultraviolet
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/296—Acoustic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/80—Arrangements for signal processing
    • G01F23/802—Particular electronic circuits for digital processing equipment

Definitions

  • the present invention relates to process automation in industrial or private environments.
  • the present invention relates to a sensor for process automation in industrial or private environments, a sensor mount, and a sensor system.
  • sensors are used to measure, for example, fill levels, limit levels or pressure.
  • Such sensors are typically screwed to the container, for example via a flange connection or a screw thread on the sensor housing.
  • WO 2021/197613 A1 describes a sensor with a magnetic fastening means which is designed to fasten the sensor to a closed wall of a plastic container. Summary
  • a first aspect of the present disclosure relates to a sensor for process automation in industrial or private environments, which is configured for attachment to the inside of a closed wall of a plastic container and for detecting a measured variable of a medium in the plastic container.
  • the sensor comprises a sensor housing, a first fastening element, and a first annular fastening device.
  • the first fastening element defines a center of rotation or pivot center of the sensor, about which the sensor can rotate when attached to the container.
  • the first fastening element is designed for pivotally attaching the sensor to the closed wall of the plastic container.
  • the first annular fastening device is arranged (concentrically) around the first fastening element.
  • the first fastening element is located on the rotation axis or axis of symmetry of the first annular fastening device.
  • the first annular fastening device comprises a ferromagnetic material or consists of such a material.
  • the first annular fastening device is designed in the form of an annular band.
  • the first annular fastening device and/or the first fastening element is integrated in the sensor housing or attached to the inner wall of the sensor housing.
  • the first annular fastening device is designed in the form of a plurality of fastening elements which are arranged spaced apart from one another along a circle.
  • the sensor housing is convex, curved outwards, in the region of the first fastening element and the first annular fastening device.
  • the sensor housing has a plurality of surface segments in the region of the first fastening element and the annular fastening device, which are arranged at an angle to one another.
  • a fastening element can be located in or under each of these surface segments.
  • the first fastening element is designed to be pivotable.
  • the first fastening element comprises or consists of a ferromagnetic material.
  • the senor comprises a control unit and a wireless communication interface configured to communicate with a sensor mount for the sensor.
  • control unit is configured to detect, by evaluating the measurement data acquired by the sensor, that a bulk material cone is forming that distorts the level measurement, and, in response, to determine a new measurement point so that error-free measurement is again possible.
  • measurement points can, for example, be defined in advance and taught to the sensor during a learning and calibration process.
  • the sensor mount comprises a control unit and a wireless communication interface configured to communicate with the wireless communication interface of the sensor.
  • control unit of the sensor holder is configured to control the electromagnet arrangement in such a way as to pivot the sensor by magnetic force.
  • control unit is configured to detect, by evaluating the measurement data acquired by the sensor, that a bulk material cone is forming that distorts the level measurement, and, in response, to determine a new measurement point so that error-free measurement is again possible.
  • measurement points can, for example, be defined in advance and taught to the sensor during a learning and calibration process.
  • Another aspect of the present disclosure relates to a sensor system comprising a sensor described above and below and a sensor mount described above and below.
  • the sensor system is designed, for example, such that the first annular fastening device of the sensor corresponds to the second annular fastening device of the sensor holder. Likewise, the first fastening element of the sensor corresponds to the second fastening element of the sensor holder.
  • Process automation in an industrial environment can be understood as a branch of technology that includes measures for the operation of machines and systems without human intervention.
  • One goal of Process automation involves automating the interaction of individual components of a plant in the chemical, food, pharmaceutical, petroleum, paper, cement, shipping, or mining industries.
  • sensors can be used for this purpose, each of which is specifically tailored to the specific requirements of the process industry, such as mechanical stability, resistance to contamination, extreme temperatures, and extreme pressures. Measured values from these sensors are typically transmitted to a control room, where process parameters such as fill level, limit level, flow rate, pressure, or density are monitored, and settings for the entire plant can be changed manually or automatically.
  • a sub-area of process automation in the industrial environment concerns the logistics automation of plants and the logistics automation of supply chains.
  • processes inside or outside a building or within a single logistics facility are automated in the field of logistics automation.
  • Typical applications for logistics automation systems include baggage and freight handling at airports, traffic monitoring (toll systems), retail, parcel distribution, or even building security (access control).
  • ToF time-of-flight
  • factory-to-production automation Another sub-area of process automation in the industrial environment concerns factory-to-production automation. Applications for this can be found in a wide variety of industries, such as automotive manufacturing, food production, the pharmaceutical industry, and packaging in general.
  • the goal of factory automation is to automate the production of goods using machines, production lines, and/or robots, i.e., to run them without human intervention.
  • the sensors used here and the specific requirements regarding measurement accuracy for detecting the position and size of an object are comparable to those in the previous example of logistics automation.
  • the terms used in the claims should be construed to give them the broadest reasonable interpretation consistent with the foregoing description. For example, the use of the article "a” or "the” in introducing an element should not be construed to exclude a plurality of elements.
  • A, B and/or C or "at least one of A, B or C” should be construed to include any single unit of the listed elements, e.g., A, any subset of the listed elements, e.g., A and B, or the entire list of elements A, B and C.
  • Fig. 1 shows a container with a sensor system attached to it.
  • Fig. 2 shows a sensor holder
  • Fig. 3 shows a container with a sensor system attached to it in a tilted state.
  • Fig. 4 shows a cross-sectional view of a sensor.
  • Fig. 5 shows a cross-sectional view of a sensor according to another embodiment.
  • Fig. 1 shows a container 105 to which a sensor system is attached.
  • the sensor system consists of a sensor 100, which is attached to the container wall inside the container, and a sensor mount 200, which is located on the opposite side of the container wall.
  • the sensor mount 200 has a (second) fastening element 204 located in the center of the underside of the sensor mount 200 and, for example, integrated into the housing wall of the sensor mount 200 or attached internally thereto.
  • This second fastening element 204 is, for example, a permanent magnet or a ferromagnetic material.
  • the second fastening element 204 there is a ring of electromagnets 203, which is also referred to above as the second annular fastening device.
  • the individual electromagnets are connected to the electronics or control unit 202 of the sensor holder 200 and can be individually controlled by it.
  • the control unit 202 is connected to the wireless communication interface 209, which receives control data from a corresponding communication interface 109 of the sensor 100.
  • the sensor 100 has a sensor housing 102 in which, in addition to the wireless communication interface 109, a control unit 108 is located, which controls the measurements of the sensor 100 and generates control data for the controller 202 of the sensor holder 200, which data is then transmitted from the communication interface 109 to the communication interface 209 of the sensor holder 200.
  • the housing 102 of the sensor 100 has a convex shape in the upper area.
  • a "first" Fastening element 104 for example in the form of an electro- or permanent magnet, or a ferroelectric.
  • a first annular fastening device 107 located on top of or in the housing. Also located on top of or in the housing is a first annular fastening device 107, concentric with the axis described above, on which the first fastening element 104 is located.
  • the positions and dimensions of the first fastening element 104 and the first annular fastening device 107 correspond to the positions and dimensions of the corresponding counterparts of the sensor holder 200, namely the second fastening element 204 and the second annular fastening device 203.
  • the sensor 100 is held to the sensor holder 200 by magnetic forces acting through the container wall.
  • the sensor mount 200 has magnets and is designed to allow multiple positioning/orientations of the sensor 100.
  • the sensor mount 200 and the sensor 100 can communicate with each other via the wireless interfaces 209, 109, for example, using short-range communication (NFC, LoRa, etc.).
  • a control unit 202 integrated in the sensor holder 200 controls the electromagnets of the second annular fastening device 203.
  • the sensor 100 can have a convex upper surface, which also contains magnets or a ferromagnetic metal.
  • the electronics in the sensor holder 200 can then influence the orientation of the sensor 100 by switching certain magnets on and off.
  • the magnets in the sensor holder 200 can be switched individually.
  • first mounting element 104 for attaching the sensor 100 to the container 105.
  • This is, for example, a magnet 104.
  • the magnetic counterpart 204 can then be located in the sensor holder 200.
  • the sensor 100 can be communicatively connected to the sensor mount 200 via the wireless communication interface 109, so that control commands can be transmitted to the control unit 202 of the sensor mount 200.
  • the control unit 202 in the sensor mount 200 can then convert these commands into switching the electromagnets of the second annular fastening device 203 on or off, thus moving the sensor 100 into different orientations/positions.
  • the senor 100 can position itself in specific orientations using the sensor mount 200. These orientations can be different measuring points, for example, on a bulk material pile.
  • the sensor electronics can be so intelligent that they automatically detect when, for example, a bulk material cone forms that distorts the actual container measurement level.
  • the control unit 108 determines a new measurement point, allowing error-free measurement again.
  • These measurement points can, for example, be defined in advance and taught to the sensor during a learning and calibration process.
  • the sensor 100 can, for example, detect that the container is filled very quickly in a certain time and then move to a different measuring point accordingly by tilting itself.
  • the sensor described above can therefore independently move to predefined measuring points, detect the formation of repose cones, and react to them independently by controlling the magnetic sensor holder 200 accordingly to tilt.
  • the container wall is usually located between the sensor 100 and the sensor holder 200.
  • the sensor holder 200 is also attached to the inside of the container, so that the sensor holder 200 and the sensor 100 touch each other.
  • Communication between the sensor 100 and the sensor holder 200 can be wireless via NFC, LoRa, etc.
  • the surface of the sensor 100 that contacts the container wall can be convex, which simplifies tilting of the sensor.
  • the (autonomous) sensor 100 can independently move to predefined measuring points using the sensor holder 200 and align itself spatially accordingly.
  • Fig. 2 shows a sensor mount 200.
  • the second fastening element 204 is arranged in the center of the sensor mount 200.
  • the second annular fastening device 203 Surrounding it is the second annular fastening device 203, which in this embodiment consists of individual electromagnets. Each of these electromagnets is connected to the control unit 202 and can be individually controlled by it.
  • the electromagnets are arranged in a ring on the sensor holder 200.
  • the sensor and the sensor holder 200 form a magnetic connection through the container wall.
  • the magnet 204 is preferably very strong so that the sensor can be securely fastened.
  • the ring-shaped electromagnets of the ring-shaped fastening device 203 can be individually switched on and off.
  • the sensor 100 has a curve on its upper side, where its magnets are located (see Fig. 1).
  • the magnetic connection between the magnets 104, 204 is so strong that it holds the sensor 100 in place in any application.
  • individual ring segments of the ring-shaped fastening device 203 of the sensor holder can now be switched on. These then pull the sensor 100 towards themselves or towards the container wall in this area.
  • the curvature of the surface of the sensor 100 causes it to tilt. This is shown in Fig. 3.
  • Fig. 4 shows another possible embodiment of the housing 102 of the sensor 100.
  • the top side of the housing 102 consists of several segments arranged at an angle to one another, i.e., with different surface orientations.
  • a ferromagnetic element of the annular fastening 107 is located in or on each of these segments.
  • the first fastening element 104 is located centrally in the topmost segment.
  • FIG. 5 A further embodiment is shown in Fig. 5, which has more segments than the embodiment of Fig. 4.
  • each of the segments contains a Ferromagnetic element of the annular fastening device 107.
  • two annular fastening devices 107 are provided, which are arranged concentrically to one another and thus form two rings with different diameters. This enables a two-stage tilting of the sensor 100, depending on which ring is currently attracted by the corresponding electromagnet of the sensor holder.
  • the sensor holder 200 also has two annular fastening devices whose diameter and position correspond to the annular fastening devices of the sensor 100.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

L'invention concerne un capteur comportant un boîtier de capteur (110), un premier élément de fixation (104) qui définit un centre de rotation du capteur (100), et un premier dispositif de fixation annulaire (107) qui comporte un matériau ferromagnétique, le premier élément de fixation (104) étant situé sur l'axe de rotation du premier dispositif de fixation annulaire. Le capteur est conçu pour être fixé de manière pivotante à une paroi fermée d'un récipient en plastique.
PCT/EP2024/080656 2023-12-11 2024-10-30 Capteur, support et système de capteur Pending WO2025124792A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102023134620.2A DE102023134620A1 (de) 2023-12-11 2023-12-11 Sensor, Halterung und Sensorsystem
DE102023134620.2 2023-12-11

Publications (1)

Publication Number Publication Date
WO2025124792A1 true WO2025124792A1 (fr) 2025-06-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2024/080656 Pending WO2025124792A1 (fr) 2023-12-11 2024-10-30 Capteur, support et système de capteur

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DE (1) DE102023134620A1 (fr)
WO (1) WO2025124792A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023134620A1 (de) 2023-12-11 2025-06-12 Vega Grieshaber Kg Sensor, Halterung und Sensorsystem

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011007764A (ja) * 2009-06-29 2011-01-13 Kazumasa Onishi 超音波レベル計
DE102015113908A1 (de) * 2015-08-21 2017-02-23 Truma Gerätetechnik GmbH & Co. KG Füllstandsmessgerät, Verfahren zum Betreiben eines Füllstandsmessgeräts sowie Baugruppe bestehend aus einem Füllstandsmessgerät und mindestens einem Abstandshalter
WO2021197613A1 (fr) 2020-04-03 2021-10-07 Vega Grieshaber Kg Capteur avec élément de fixation, récipient et utilisation
DE102023134620A1 (de) 2023-12-11 2025-06-12 Vega Grieshaber Kg Sensor, Halterung und Sensorsystem

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021201879A1 (de) 2021-02-26 2022-09-01 Vega Grieshaber Kg Montagevorrichtung für einen Füllstandsensor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011007764A (ja) * 2009-06-29 2011-01-13 Kazumasa Onishi 超音波レベル計
DE102015113908A1 (de) * 2015-08-21 2017-02-23 Truma Gerätetechnik GmbH & Co. KG Füllstandsmessgerät, Verfahren zum Betreiben eines Füllstandsmessgeräts sowie Baugruppe bestehend aus einem Füllstandsmessgerät und mindestens einem Abstandshalter
WO2021197613A1 (fr) 2020-04-03 2021-10-07 Vega Grieshaber Kg Capteur avec élément de fixation, récipient et utilisation
DE102023134620A1 (de) 2023-12-11 2025-06-12 Vega Grieshaber Kg Sensor, Halterung und Sensorsystem

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Publication number Publication date
DE102023134620A1 (de) 2025-06-12

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