WO2021013356A1 - Capteurs radars combinés comprenant un capteur radar pour mesurer un niveau de remplissage et un capteur radar pour surveiller un environnement - Google Patents

Capteurs radars combinés comprenant un capteur radar pour mesurer un niveau de remplissage et un capteur radar pour surveiller un environnement Download PDF

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Publication number
WO2021013356A1
WO2021013356A1 PCT/EP2019/070080 EP2019070080W WO2021013356A1 WO 2021013356 A1 WO2021013356 A1 WO 2021013356A1 EP 2019070080 W EP2019070080 W EP 2019070080W WO 2021013356 A1 WO2021013356 A1 WO 2021013356A1
Authority
WO
WIPO (PCT)
Prior art keywords
radar sensor
radar
sensor arrangement
arrangement
module
Prior art date
Application number
PCT/EP2019/070080
Other languages
German (de)
English (en)
Inventor
Roland Welle
Jörg Börsig
Levin Dieterle
Steffen WÄLDE
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
Priority to DE112019007565.9T priority Critical patent/DE112019007565A5/de
Priority to PCT/EP2019/070080 priority patent/WO2021013356A1/fr
Publication of WO2021013356A1 publication Critical patent/WO2021013356A1/fr

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Classifications

    • 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
    • G01S13/06—Systems determining position data of a target
    • G01S13/46—Indirect determination of position data
    • G01S13/48—Indirect determination of position data using multiple beams at emission or reception
    • 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
    • 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
    • G01S13/04—Systems determining presence of a target
    • 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
    • G01S13/06—Systems determining position data of a target
    • 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
    • G01S13/87—Combinations of radar systems, e.g. primary radar and secondary radar
    • 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
    • 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
    • G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
    • G01S7/411—Identification of targets based on measurements of radar reflectivity
    • G01S7/412—Identification of targets based on measurements of radar reflectivity based on a comparison between measured values and known or stored values
    • 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
    • G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
    • G01S7/415—Identification of targets based on measurements of movement associated with the target
    • 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
    • G01S7/40—Means for monitoring or calibrating
    • 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
    • G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
    • G01S7/414—Discriminating targets with respect to background clutter

Definitions

  • the invention relates to measuring devices which are set up for use in an industrial environment.
  • the invention relates to a radar sensor, a
  • exchangeable radar sensor arrangement a field device with a radar sensor arrangement and a container with a field device attached therein.
  • Such field devices are operated and parameterized via a digital, possibly wireless, interface or via user input directly on the field device.
  • Examples of such interfaces are HART, IO-Link, Bluetooth or NFC.
  • the user input directly on the field device takes place through an interaction of the user with the field device via buttons, magnetic elements or the like. Special operating modules can be used for this, which are designed to be removable from the field device and which are supplied with energy via the field device.
  • User input can be carried out using four keys, for example.
  • a display can be provided which shows the user the inputs made and thus gives feedback on the user inputs.
  • a first aspect of the present disclosure relates to a radar sensor that has a first sensor arrangement and a second sensor arrangement that is a radar sensor arrangement.
  • the first sensor arrangement can also be designed as a radar sensor arrangement, but it can also be a different type of sensor device, for example an ultrasound sensor device, a vibronic sensor device for
  • Level detection or a pressure or flow sensor It can be set up to measure the filling level of a medium in a container or to detect another process variable.
  • levels detection or a pressure or flow sensor. It can be set up to measure the filling level of a medium in a container or to detect another process variable.
  • the first radar sensor arrangement is set up to measure a limit level, a level of an open body of water and / or the flow velocity of a medium.
  • the latter is done, for example, by means of a Doppler measurement with a radar signal that appears obliquely onto the medium and is reflected, for example, from ripples on the surface.
  • the second radar sensor arrangement is set up to monitor the surroundings of the radar sensor outside the container. So it monitors a different area of space than the first radar sensor arrangement.
  • the second radar sensor arrangement can have a modular design for the subsequent upgrading of the first radar sensor arrangement.
  • the second radar sensor arrangement can be set up as a subsequently attachable operating and display device of the first radar sensor arrangement, which works independently, for example by only switching on the display lighting when a person is recognized.
  • the radar sensor is set up for process automation in an industrial environment.
  • process automation in an industrial environment can be understood as a sub-area of technology that includes all measures for operating machines and systems without human involvement.
  • One goal of process automation is to ensure that the individual components of a
  • Measured values from these sensors are usually transmitted to a control room, in which process parameters such as level, limit level, flow rate, pressure or density can be 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 With the help of distance and angle sensors, processes within a building or within a single logistics system are automated in the field of logistics automation. Typical applications are e.g. systems for
  • sensors based on optical measurement methods using lasers, LEDs, 2D cameras or 3D cameras that detect distances according to the time of flight principle (ToF) can be used.
  • the first radar sensor arrangement is set up to emit a first radar measurement signal for measuring the fill level in a first direction.
  • the second radar sensor arrangement is set up to send a second radar measurement signal
  • the first direction and the second direction enclose an angle which is greater than 90 °. According to one embodiment, this angle is 180 °, so that the two radar measurement signals are emitted in opposite directions.
  • the radar sensor has a measuring device housing, the first radar sensor arrangement, but not the second radar sensor arrangement, being arranged in the measuring device housing.
  • the second radar sensor arrangement her
  • the measurement signal emits through the housing wall in the direction of the area to be monitored by the radar sensor.
  • the second radar sensor arrangement is set up to recognize a gesture by a user, the radar sensor, and in particular a processor or some other control unit of the radar sensor, being set up to use this gesture to control the first radar sensor arrangement.
  • the second radar sensor arrangement is set up to detect an interference reflector outside the container, the radar sensor or its control unit being set up to be aware of the interference reflector to identify an interference reflection that was detected by the first radar sensor arrangement use. Accordingly, position data of the interfering reflector recorded by the second radar sensor arrangement can in particular be used to detect an interfering reflector reflection in the echo curve recorded by the first radar sensor arrangement and thus to facilitate the identification of the useful echo.
  • This interfering reflector external to the container can be, for example, the wall of an adjacent container and the radar sensor can be set up to recognize that this adjacent container is stacked on its own container.
  • the control unit knows, for example, the distance to be expected from the underside of the other container.
  • the second radar sensor arrangement is set up to recognize a user who is approaching the radar sensor.
  • the radar sensor is set up to use the knowledge of the approach of the user to control a display or a background lighting of the radar sensor. For example, it can be provided that the background lighting is switched on when a user is close to the radar sensor or the display is switched on.
  • the second radar sensor arrangement is set up to detect whether or not an opening of the container is open. If it is determined that the opening of the container is open, it can be provided that the radar sensor the
  • Measurement rate of the first radar sensor arrangement changes, for example increased (or decreased). If, on the other hand, it is detected that the container opening is closed, a different measuring rate can be set accordingly.
  • the measuring rate can be throttled or the measurement can be stopped completely, since the measuring results are very likely to be incorrect. This can also be signaled to the user in the control center.
  • the second radar sensor arrangement is set up to be activated by touching or tapping by a user, that is to say to wake up from a sleep mode.
  • a corresponding pressure sensor or capacitive sensor can be provided for this.
  • a switch can also be provided.
  • the second radar sensor arrangement can be a chirp sequence, FMCW or pulse Doppler radar sensor arrangement.
  • the radar sensor can be set up to use the measurement data of the second radar sensor arrangement in order to influence the measurement of the first radar sensor arrangement.
  • Application examples for this are stacked IBC containers or an increase in the measuring rate of the first radar sensor arrangement
  • Another aspect relates to a possibly exchangeable radar sensor arrangement, hereinafter also referred to as the operating module, set up to monitor the surroundings of a device, for example a field device for process automation, and possibly for attachment to or in a measuring device housing of the device.
  • This radar sensor arrangement is, for example, an operating and / or display module of the device.
  • the radar module is set up to monitor the area around the device.
  • the radar module can have a display and it can be provided that the
  • Measurement data of the radar sensor arrangement is set up for setting a display, for activating the display, for deactivating the display and / or for registering a user input (gesture control).
  • the communication between the device and the radar module can be wired or wireless.
  • the radar module has an interface (300), the interface (300) being designed to supply energy to the radar sensor arrangement through the device (100) and / or to transmit data. It can be provided that the operating module uses all of its energy required for operation
  • Interface 300 is obtained from the device (100).
  • the energy drawn via the interface (300) is completely provided from a 4-20 mA two-wire interface of the device (100).
  • the radar module has an additional display for visualizing measured values, diagnostic values and / or operating elements.
  • the operating module is designed as a display and operating module for the device.
  • Another aspect relates to a field device with a possibly exchangeable radar sensor arrangement described above and below.
  • Another aspect relates to a container with a field device which is attached to it and is described above and below.
  • the field device is in a
  • the first sensor arrangement of the field device which can be a radar sensor arrangement, an ultrasound sensor arrangement, a pressure sensor arrangement or a capacitive or vibratory sensor arrangement, is located, for example, on the side of the radar sensor facing the process and the second radar sensor arrangement the opposite side facing away from the process so that it can monitor the environment outside of the container.
  • FIG. 1 shows a container with a field device mounted therein.
  • 2A shows a field device in the form of a radar sensor.
  • FIG. 2B shows the emission directions of a first radar sensor arrangement and a second radar sensor arrangement.
  • FIG. 2C shows the field device of FIG. 2A with a different emission direction of the second radar sensor arrangement.
  • FIG. 2D shows the angle of the emission directions according to FIG. 2C.
  • FIG 3 shows a field device according to a further embodiment.
  • FIG. 4 shows two containers with field devices mounted therein.
  • Fig. 5 shows a container with a field device which is attached below a container opening.
  • 7A shows an exchangeable radar sensor arrangement in the form of an operating module in a perspective view and in a side view.
  • 7B shows an exchangeable radar sensor arrangement for gesture recognition.
  • the field device 100 is, for example, one
  • the field device 100 can be set up for contactless measurement of the fill level. However, it can also be set up in the form of a TDR sensor or a vibration sensor. In the latter case, a limit level is recorded.
  • the field device 100 can also be a pressure sensor or flow sensor, which has a “second” radar sensor arrangement 102
  • the first radar sensor arrangement is used to determine the fill level of the product or medium 130 in the container 103, for example by emitting a radar signal 140 in the direction of the product surface 150, reflecting it there and receiving it again by the first radar sensor arrangement 101.
  • the product echo is determined, from whose position (which corresponds to the transit time of the measurement signal) the level can be calculated.
  • the first radar sensor arrangement 101 can also be configured to scan the product surface in order to determine the topology of the product surface.
  • the first radar sensor arrangement can be a radar chip with an antenna array
  • the second radar sensor arrangement 102 is designed to monitor the surroundings 160 outside the container 103 and is arranged, for example, on or directly below the top of the field device, that is to say the side of the radar sensor 100 facing away from the process side.
  • the radar sensor 100 is thus set up to monitor its surroundings and can be used in particular in level measurement technology, process measurement technology,
  • the second radar sensor arrangement 102 is used for this purpose, additional infrared sensors, ultrasonic sensors, capacitive sensors or cameras are not required for monitoring the surroundings.
  • the radar sensor arrangement 102 is provided, which is for example on the in the housing 105
  • This second sensor arrangement 102 can be equipped with antenna devices other than that first radar sensor arrangement 101, which can also be referred to as a process measuring radar module.
  • the process measuring radar module can for example be provided with a horn antenna in order to measure the process variable, whereas the second radar sensor arrangement 102 can be equipped with patch antennas 202 (cf. FIG. 2A) for the detection of the surroundings.
  • the second radar sensor arrangement 102 can also be set up to measure through the housing wall of the radar sensor, so that antennas are not necessarily visible from the outside.
  • the main beam direction 204 of the second radar sensor arrangement 102 is aligned in a different direction than the main beam direction of the first radar sensor arrangement 101.
  • an alignment at an obtuse angle as can be seen in FIG. 2D ( ⁇ > 90 °).
  • both the first radar sensor arrangement 101 and the second radar sensor arrangement 102 are designed as a so-called MIMO radar module (Multiple Input Multiple Output) or as a radar module with analog or digital beam shaping. This is shown, for example, in FIG. 3, which shows that the control unit 120 has the circuit 121 of the first radar sensor arrangement 101 and a corresponding one
  • Control circuit of the second radar sensor arrangement 102 can be activated in such a way that both measurement signals can be emitted in different directions in order to
  • the radar sensor can be set up so that a backlight and / or the associated display that is located on the radar sensor 100 is only switched on when a person approaches or stands in front of the radar sensor or there is no object in front of the measuring device.
  • the second radar sensor arrangement 102 can be used for this presence detection.
  • the radar sensor can also be designed to be attached to stackable and mobile containers 103, as shown in FIG. 4.
  • the additional, second radar sensor arrangement 102 can be set up to detect whether there is another object (for example a container) above the respective measuring device. This information can be used to calculate the measured variable. That is possible through stacked Container 103 “ghost targets” can arise from multiple reflections 402, which in reality do not exist.
  • the measurement rates of the first and / or the second radar sensor arrangement 101, 102 are adapted as a function of whether or not objects are detected in the vicinity of the radar sensor.
  • the radar sensors 100 can be mounted under a cover 501, ie below a container opening 110, and depending on whether the container is open or closed, the measuring rate can be increased or decreased (or vice versa).
  • the measurement can also be completely set.
  • a corresponding measurement setup is shown in FIG. 5.
  • the present disclosure provides a new operating concept in which the user interacts with the operating module of the radar sensor or field device via gestures. These gestures are detected via the second radar sensor arrangement 102, which is integrated in the operating module or in the housing of the radar sensor.
  • FIG. 7A shows an exchangeable radar sensor arrangement in the form of an operating module in a perspective view and in a side view.
  • FIG. 7B shows the exchangeable radar sensor arrangement of FIG. 7A, in which the sensor device for gesture recognition is also shown.
  • MIMO radar chips can be optimized by appropriate signal processing units to recognize gestures that are carried out by hand.
  • radar chips are installed in the operating module in such a way that the
  • the main emission direction of the gesture-recognizing radar chip is aligned essentially orthogonally to the display (see. Fig. 7B).
  • the operating module 102 is then installed in a field device (for example in a radar sensor 100) and is then located, for example, on the side of the field device housing opposite the process connection, as shown in FIG. 6.
  • the advantage of the radar method is that, in addition to distances, speeds can also be evaluated, which is not necessarily the case with other environmental monitoring sensors. Just using the speed component is a
  • Surrounding area monitoring radar module can for example the chirp sequence, FMCW or pulse Doppler method can be used.
  • FMCW or pulse radar method can be used for the measuring radar module (first radar sensor arrangement 101).
  • the two radar sensor arrangements can be designed as MIMO systems. This means that several transmitting and / or receiving antennas can be present. This allows the main emission and main reception direction of the radar sensor arrangement to be controlled, which contributes to a considerable extent to the detection of gestures (cf. FIG. 3). So that the gesture-recognizing radar sensor (more precisely: the second radar sensor arrangement 102) does not have to scan the surroundings all the time, it can be activated, for example, by the user knocking on the housing wall of the field device. After the call waiting, the operating module or the field device can then be controlled and parameterized using gestures. This process has the advantage that the field device does not have to be screwed on, which can be advantageous in the case of field devices that are used in potentially explosive areas.
  • the operating module needs signaling devices to give the user feedback as to whether the commands entered via gesture control have been correctly understood.
  • This feedback can be implemented optically (display, LED), acoustically (signal-accentuated) or vibronically (vibration of the housing).
  • the additional radar module (second radar sensor arrangement) 102 is arranged such that the first radar sensor arrangement 101 and the second radar module (second radar sensor arrangement) 102 are arranged such that the second radar module (second radar sensor arrangement) 102 is arranged such that the second radar module (second radar sensor arrangement) 102 is arranged such that the second radar module (second radar sensor arrangement) 102 is arranged such that the second radar module (second radar sensor arrangement) 102 is arranged such that the second radar sensor arrangement 101.
  • the two radar sensor arrangements 101, 102 can have different frequency ranges, radar modulation forms, signal processing algorithms, antenna constructions, antenna opening angles, number of transmitting and receiving antennas, measuring ranges, measuring time intervals, etc ...
  • the measured variable can be determined using both radar sensor arrangements 101, 102.
  • the second radar sensor arrangement 102 can be used to monitor the surroundings.
  • the second radar sensor arrangement 102 can be used for gesture control.
  • the radar sensor 100 can offer advantages in radar sensors for areas at risk of explosion, since the sensor does not have to be opened or the cover does not have to be screwed on to operate the sensor.
  • the second radar sensor arrangement 102 for gesture control can have a plurality of transmitting and / or receiving antennas that allow analog or digital beam formation.
  • Both radar sensor arrangements 101, 102 can be set up to be able to detect speeds as well as distances.
  • the energy of the radar sensor arrangements 101, 102 can be drawn from an IO-Link, 4... 20 mA interface or a battery / accumulator.
  • the user needs feedback as to whether the information entered was understood by the sensor.
  • This can be in the form of a display, LEDs or a vibronic or acoustic signal, for example.
  • the gesture control does not have to constantly scan the surroundings, it can be activated, for example, by "knocking on”.
  • first radar sensor arrangement 101 and the second radar sensor arrangement 102 are integrated in a semiconductor module.
  • Waveguides, coaxial conductors or dielectric waveguides can be used to route the signals to the respective antennas.
  • the radar chip in the operating module can be designed as a MIMO, SIMO or MOSI chip (one or more transmitting or receiving antennas) and can thus operate beam shaping.
  • the radar chip in the operating module can be set up according to the FMCW radar, the chirp sequence or the pulse Doppler method.
  • the main beam direction of the second radar sensor arrangement 102 is orthogonal on the display of the operating module.

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

L'invention concerne un capteur radar comprenant un premier ensemble capteur radar, conçu pour mesurer le niveau d'un milieu dans un contenant, et un second ensemble capteur radar conçu pour surveiller l'environnement du capteur radar à l'extérieur du contenant.
PCT/EP2019/070080 2019-07-25 2019-07-25 Capteurs radars combinés comprenant un capteur radar pour mesurer un niveau de remplissage et un capteur radar pour surveiller un environnement WO2021013356A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112019007565.9T DE112019007565A5 (de) 2019-07-25 2019-07-25 Radarsensor, austauschbare Radar-Sensoranordnung, Feldgerät und Behälter
PCT/EP2019/070080 WO2021013356A1 (fr) 2019-07-25 2019-07-25 Capteurs radars combinés comprenant un capteur radar pour mesurer un niveau de remplissage et un capteur radar pour surveiller un environnement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2019/070080 WO2021013356A1 (fr) 2019-07-25 2019-07-25 Capteurs radars combinés comprenant un capteur radar pour mesurer un niveau de remplissage et un capteur radar pour surveiller un environnement

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WO2021013356A1 true WO2021013356A1 (fr) 2021-01-28

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PCT/EP2019/070080 WO2021013356A1 (fr) 2019-07-25 2019-07-25 Capteurs radars combinés comprenant un capteur radar pour mesurer un niveau de remplissage et un capteur radar pour surveiller un environnement

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DE (1) DE112019007565A5 (fr)
WO (1) WO2021013356A1 (fr)

Citations (4)

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WO2016176600A1 (fr) * 2015-04-30 2016-11-03 Google Inc. Suivi de micro-mouvements sur la base de rf pour suivi et reconnaissance de gestes
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