EP1912543A1 - Dispositif de detection a systeme de localisation par circuit oscillant et transmission d'informations codees - Google Patents

Dispositif de detection a systeme de localisation par circuit oscillant et transmission d'informations codees

Info

Publication number
EP1912543A1
EP1912543A1 EP06791570A EP06791570A EP1912543A1 EP 1912543 A1 EP1912543 A1 EP 1912543A1 EP 06791570 A EP06791570 A EP 06791570A EP 06791570 A EP06791570 A EP 06791570A EP 1912543 A1 EP1912543 A1 EP 1912543A1
Authority
EP
European Patent Office
Prior art keywords
sensor device
locating
circuit
sensor
sensor element
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Withdrawn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
EP06791570A
Other languages
German (de)
English (en)
Inventor
Andreas Wawrla
Kurt Wallerstorfer
Roland Scholz
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.)
Aquis Wasser Luft Systeme GmbH Lindau Zweigniederlassung Rebstein
Original Assignee
Aquis Wasser Luft Systeme GmbH Lindau Zweigniederlassung Rebstein
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 Aquis Wasser Luft Systeme GmbH Lindau Zweigniederlassung Rebstein filed Critical Aquis Wasser Luft Systeme GmbH Lindau Zweigniederlassung Rebstein
Publication of EP1912543A1 publication Critical patent/EP1912543A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/4403—Constructional details
    • A47J31/4457—Water-level indicators
    • 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
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/20—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
    • G01D5/204—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the mutual induction between two or more coils

Definitions

  • the invention relates to a sensor device according to the preamble of claim 1.
  • a sensor device with resonant circuit location system has already become known.
  • a location detection is effected by electromagnetic waves via one or more excitation coils.
  • the location of a passive sensor element with a coupled location resonant circuit i. a sensor element without its own power supply, can be determined by the response of the locating circuit to the exciter signal of the resonant circuit location system in this sensor device.
  • This sensor device is only suitable for locating and by successive measurements in conjunction with a time detection for detecting movements.
  • the object of the invention is to propose a sensor device with a resonant circuit location system, with which additional information can be transmitted.
  • a sensor device is characterized by a base unit comprising a resonant circuit location system with at least one location-selective transmitting and / or receiving element for location detection by electromagnetic waves, and a sensor element comprising a locating circuit for marking the location to be detected, characterized the sensor element comprises a coding unit for transmitting coded information.
  • Such data may be, for example, information about components to which the sensor element is attached or sensory data on the environment of the sensor element with locating circuit or external data transmission devices on the spot data transmitted to the sensor element.
  • a data transmission is provided by means of the locating resonant circuit provided for locating. Due to the common use of the locating circuit for locating and for further data transmission, a transmitter separate from the locating circuit is unnecessary for data transmission. This means a reduction in the production costs and the space required.
  • At least one transmission and / or Receiving antenna of the resonant circuit location system for transmitting coded information provided.
  • the manufacturing effort and the space requirement is significantly reduced even in the base unit.
  • the data transmission is accomplished in an advantageous embodiment of the invention in that the electric locating circuit comprises an actuator and a control unit for the coded change of an electrical parameter of the resonant circuit.
  • This coded change is evaluated or decoded in the response signal at the base unit comprising the resonant circuit location system. In this way, a location and a data transfer with arbitrary information can be realized by the same sensor element.
  • the attenuation or the resistance of the locating resonant circuit is formed changeable.
  • the question of which parameters are changed and how the information is coded plays a secondary role, provided that the coding can only be recognized in the response signal.
  • the resonant frequency of the locating resonant circuit is tuned to a resonant frequency of the site-selective transmitting and / or receiving element in the resonant circuit location system.
  • the control unit for the actuator for the coded change of the electrical parameter is advantageously implemented in the form of an integrated circuit in the locating circuit, so that a total of compact passive sensor unit, ie a sensor unit without its own power supply results, for example can be poured in plastic or the like.
  • a data memory is additionally provided.
  • a data memory can be used, for example, for the intermediate storage of data sensed at the location of the sensor element with the locating circuit.
  • it may also contain data on components to which the sensor element with locating circuit is attached.
  • type specifications, technical data or the like can be stored in such a data memory for transmission to the base unit of the sensor device in such a data memory.
  • the sensor element containing the locating circuit is advantageously provided with further sensors for this purpose.
  • Such sensors may be, for example, light sensors, temperature sensors, conductivity sensors or chemical sensors for substance detection.
  • the determination of information about the environment of the sensor element with locating circuit and the forwarding to the base unit is possible, for example, with the help of such a sensor element, a level can be measured and at the same time information about the type of filling medium, its temperature, its color or turbidity, etc. are determined and transmitted.
  • the base unit is provided with a decoding unit for decoding the transmitted information.
  • a decoding unit for decoding the transmitted information.
  • all provided data in prepared form for further processing, for example, in a machine control, a computer or the like provided by the sensor device.
  • the base unit of the sensor device according to the invention is preferably provided with an interface to an external computer unit.
  • the decoded data for further use, e.g. in a machine control, in a surveillance system or the like.
  • the sensor device according to the invention is preferably provided with a bus interface, so that the sensor device can be connected to a large number of further bus subscribers, e.g. other sensor units or actuators to operate.
  • the sensor element containing the locating circuit is designed as a so-called RFID transponder whose resonant frequency is tuned to the resonant frequency of the resonant circuit locating system.
  • This embodiment has the advantage that existing commercial RFID transponder technology can be used with corresponding cost savings for the information transmission of the sensor device according to the invention.
  • a likewise commercially available, suitable for said RFID transponder reading unit can be integrated.
  • a sensor device can be equipped with a plurality of sensor elements which operate at different resonance frequencies, wherein in the base unit for Each resonance frequency must be provided a transmitting and / or receiving unit. For this purpose, a tunable or different transmitting and / or receiving units can be provided.
  • a "detuning" of the resonant frequency of the sensor element with respect to the resonant frequency of the base unit can be provided to compensate for the frequency-distorting effects of such media in the field.
  • the targeted detuning of a single resonant frequency e.g. of the locating circuit.
  • FIG. 1 shows a schematic sectional view through a coffee machine with inventive sensor device
  • FIG. 2 shows a sensor element according to the invention with locating circuit and coding unit.
  • the coffee machine 1 comprises a machine housing 2, a water tank 3 and a filter cartridge 4, which is arranged in the water tank 3.
  • a first sensor element 5 with locating circuit is movably connected to the filling 7 of the filter cartridge 4 via a displaceable upper separating sieve 6. If the filling 7 shrinks, the first sensor element 5 inside the filter cartridge 4 is lowered. If the filling then expands again, so the first sensor element 5 is raised again.
  • a first guide channel 8 designed as a float second sensor element 9 is arranged. By training as a float is the second sensor element 9 and falls with the water level 10 inside the water tank.
  • a third sensor element 11 is arranged in the interior of the machine housing 2.
  • a resonant circuit location system 12 extends laterally adjacent to the water tank 3 substantially over its entire height.
  • the oscillating circuit location system 12 carries an electronic plug-in connection 13, transmitting and receiving coils, not shown, and an RFID reading unit 14. Via the electronic plug-in connection 13, the resonant circuit locating system 12 is connected to the main electronic unit of the beverage machine 1, which has a microprocessor for controlling and evaluating the illustrated, includes non-contact sensor technology.
  • the first, second and third sensor elements 5, 9 and 11 serve as path sensors.
  • the position of the sensor elements 5, 9 and 11 can be detected by way of the abovementioned transmission and reception coils (not shown) on the resonant circuit location system 12.
  • the operation of such resonant circuit detection systems and associated sensor elements correspond to the aforementioned prior art.
  • an RFID chip (not shown in more detail) is now provided in the first sensor element 5. About this RFID chip can be made using the interaction between the
  • Oscillation circuit location system 12 and the first sensor element 25 by an encoded influencing the resonant circuit of the first sensor element 5 take place an exchange of information. It should be noted that both the location and the information transfer using the same location resonant circuit and thus under use take place at the same resonant frequency.
  • information about the state of the filling 7 can be made by measuring the fill level of the filling 7 via the first sensor element 5.
  • the extent of such a filling 7 gives a measure of the loading state of the filter resin, so that in this way statements about the exhaustion of the filter cartridge can be made.
  • sensors e.g. Conductance sensors, temperature sensors or the like can be readily integrated into such a sensor element if required and read out via the data transmission according to the invention.
  • 11 further sensory functions can be met via the second and third sensor element 9, 11, for example, the level control in the water tank 3 or a water change control.
  • the third sensor element 11 can be used for various purposes in the operation of the machine for control.
  • a detection of the consumption state, a new-filter detection, a lifetime control and a water hardness calculation and many other state and / or operating data is possible.
  • the water hardness calculation could be determined, for example, based on the lifetime of the filter cartridge taking into account the flow rate.
  • a descaling notice of the beverage machine can also be generated based on the state and / or operating data thus acquired.
  • an angle-dependent installation position can be provided, wherein a specific operating mode or operating parameter is set depending on the angle. For example, can be adjusted with the angular position, a cut ratio between filtered and unfiltered or otherwise treated water.
  • a bypass opening could be modified depending on the angle, bypassing the filter section in its cross section.
  • the associated parameter setting on the part of the beverage machine can be detected and evaluated or incorporated into the operating sequence of the machine.
  • a corresponding indication of descaling of the machine or of a filter change by the machine can be generated.
  • a machine use without filter or with a wrong filter can also be recognized, so that possibly warranty and warranty claims can be coupled to the use of a correct filter.
  • a storage unit can be accommodated in the sensor element 5 of the filter cartridge, so that there cartridge-specific data can be stored.
  • cartridge-specific data can be used, for example, in the Production of the filter cartridge are stored or even recorded during operation of the filter cartridge and stored.
  • operational cartridge-specific data can be used again in an interim replacement of the filter cartridge 4 and their re-insertion.
  • Figure 2 shows the schematic structure of a sensor element according to the invention 5.
  • a coil 15 at the same time takes place an energy and a coded data transmission by changing an electromagnetic field generated by the Schwingnikortungssystem.
  • the resonance frequencies of these two components are matched.
  • An integrated circuit 16 which i.a. generates the resistor and thus the damping of the resonant circuit, includes a data memory 17 and a coding unit 18. Additional sensor units, such as a temperature sensor 19 may be provided at the sensor element 5.
  • the coding unit 18 is able to change the attenuation of the positioning resonant circuit and thus to transmit via a predetermined coding information to an associated resonant circuit location system, for example to the resonant circuit location system 12 according to FIG.
  • the arrangement according to FIG. 2 corresponds to known RFID transponders.
  • the coded information transmitted thereby can accordingly be read out and further processed via an RFID reading unit, for example according to the RFID reading unit 14 in FIG.
  • a sensor device according to the invention is everywhere can be used in machines, systems, etc., where location recognition is required in combination with data transmission.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

L'invention concerne un dispositif de détection comportant une unité de base, qui comprend un système de localisation par circuit oscillant (12) avec au moins un élément d'émission et/ou de réception à sélection de lieu, en vue d'une localisation par ondes électromagnétiques, ainsi qu'un élément de détection (5), qui comprend un circuit oscillant de localisation pour marquer le lieu à détecter, au moyen duquel des informations complémentaires peuvent être transmises. A cet effet, il est prévu que l'élément de détection (5) comprenne une unité de codage pour transmettre des informations codées.
EP06791570A 2005-08-13 2006-08-09 Dispositif de detection a systeme de localisation par circuit oscillant et transmission d'informations codees Withdrawn EP1912543A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005038369 2005-08-13
PCT/EP2006/007862 WO2007019993A1 (fr) 2005-08-13 2006-08-09 Dispositif de detection a systeme de localisation par circuit oscillant et transmission d'informations codees

Publications (1)

Publication Number Publication Date
EP1912543A1 true EP1912543A1 (fr) 2008-04-23

Family

ID=37517315

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06791570A Withdrawn EP1912543A1 (fr) 2005-08-13 2006-08-09 Dispositif de detection a systeme de localisation par circuit oscillant et transmission d'informations codees

Country Status (2)

Country Link
EP (1) EP1912543A1 (fr)
WO (1) WO2007019993A1 (fr)

Cited By (1)

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CN102892341A (zh) * 2010-05-10 2013-01-23 优瑞电子设备公司 包括具有奶分配设备的饮料制作机和具有用于奶容器中的奶的填充水平的监测装置的奶冷却装置的组合单元以及借助这种组合单元分配奶和/或奶泡的方法

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FR2946284A1 (fr) * 2009-06-05 2010-12-10 Valeo Systemes Thermiques Cartouche pour le traitement de l'air d'un habitacle notamment, integrant une source reinscriptible d'informations
NZ702687A (en) * 2012-07-06 2016-09-30 Unilever Plc Device and method for brewing a beverage
AT512401B1 (de) * 2012-08-06 2013-08-15 Seibersdorf Labor Gmbh Behälter mit Füllstandsüberwachung
USD732386S1 (en) 2013-03-21 2015-06-23 Conopco, Inc. Capsule
EP2975977B1 (fr) 2013-03-21 2016-11-30 Unilever PLC Procédé, dispositif et capsule pour l'infusion d'une boisson
USD732387S1 (en) 2013-03-21 2015-06-23 Conopco, Inc. Capsule
EP3090663A1 (fr) * 2015-05-06 2016-11-09 Qbo Coffee GmbH Machine de préparation de boissons

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102892341A (zh) * 2010-05-10 2013-01-23 优瑞电子设备公司 包括具有奶分配设备的饮料制作机和具有用于奶容器中的奶的填充水平的监测装置的奶冷却装置的组合单元以及借助这种组合单元分配奶和/或奶泡的方法
CN102892341B (zh) * 2010-05-10 2015-10-07 优瑞电子设备公司 饮料机和冷却装置的组合单元和利用该单元的分配方法

Also Published As

Publication number Publication date
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