EP1912543A1 - Sensor device provided with an oscillation circuit locating system and an encoded information transmission - Google Patents

Sensor device provided with an oscillation circuit locating system and an encoded information transmission

Info

Publication number
EP1912543A1
EP1912543A1 EP20060791570 EP06791570A EP1912543A1 EP 1912543 A1 EP1912543 A1 EP 1912543A1 EP 20060791570 EP20060791570 EP 20060791570 EP 06791570 A EP06791570 A EP 06791570A EP 1912543 A1 EP1912543 A1 EP 1912543A1
Authority
EP
Grant status
Application
Patent type
Prior art keywords
resonant circuit
sensor device
characterized
locating
device according
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Withdrawn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
EP20060791570
Other languages
German (de)
French (fr)
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
Aquis Wasser-Luft-Systeme Lindau GmbH
Original Assignee
AQUIS WASSER-LUFT-SYSTEME GMBH, LINDAU
AQUIS WASSER LUFT SYSTEME 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

Links

Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00Apparatus for making beverages
    • A47J31/44Parts or details or accessories of beverage-making apparatus
    • A47J31/4403Constructional details
    • A47J31/4457Water-level indicators
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING 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
    • G01D5/00Mechanical 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
    • G01D5/12Mechanical 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
    • G01D5/14Mechanical 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
    • G01D5/20Mechanical 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
    • G01D5/204Mechanical 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

Abstract

The invention relates to a sensor device comprising a base unit which consists of an oscillating circuit locating system (12) provided with at least one transmitting and/or receiving location selecting element for locating by electromagnetic waves and a sensor element (5) comprising a location oscillating circuit for marking a detectable locality which makes it possible to transmit additional information. For this purpose, the sensor element (5) is provided with an encoding unit for transmitting encoded information.

Description

SENSOR DEVICE WITH RESONANT CIRCUIT DETECTION SYSTEM AND TRANSMISSION CODED

INFORMATION

The invention relates to a sensor device according to the preamble of claim 1.

With the publication WO 03/038380 Al a sensor device with resonant circuit location system is already known. Here is effected via one or more exciting coils a location detection by electromagnetic waves. The location of a passive sensor element having an input coupled locating resonant circuit, ie a sensor element without its own energy supply, can be determined by the response of locating the resonant circuit to the excitation signal of the resonant circuit locating system in this sensor device.

This sensor device is suitable only for the detection and by successive measurements in conjunction with a time tracking for detecting movements.

Object of the invention is to provide a sensor device with an oscillating circuit locating system, are transferable with the additional information.

This object is achieved on the basis of a sensor device according to the preamble of claim 1 by the characterizing features of claim 1. By referred to in the dependent claims, advantageous embodiments and developments of the invention are possible.

Accordingly, a sensor device according to the invention, characterized characterized with a base unit comprising a resonant circuit locating system having at least one ortselektiven transmitting and / or receiving element for location detection by electromagnetic waves, and a sensor element which includes a locating resonant circuit for marking of the detected location from, the sensor element comprises an encoder for transmitting encoded information.

By this measure, it is possible to determine the sensor element not only the location of the selected location by the positioning system, but not to submit further data from the sensor element with location resonant circuit of the inventive base unit.

Such data may, for example, information about devices, to which the sensor element is mounted or to be organoleptically sensed data on the surroundings of the sensor element with locating resonant circuit or locally transmitted by the external data transmission equipment to the sensor element data.

Preferably, a data transmission is provided by means of which provided for locating positioning resonant circuit. By sharing the locating resonant circuit for the detection and for further data transmission, a separate location from the transmitter resonant circuit is unnecessary for data transmission. This means a reduction of the manufacturing expense and space requirements.

Advantageously, a transmitting and / or receiving antenna of the resonant circuit locating system is provided for transmitting coded information of at least. By sharing such a transmitting and / or receiving antenna is significantly reduced even when the base unit, the production cost and the space requirement.

The data transfer is accomplished in an advantageous embodiment of the invention characterized in that the electrical resonant circuit includes a tracking actuator, and a control unit for coded change an electrical parameter of the resonant circuit. This change is coded, evaluated or in the response signal to the base unit, which includes the resonant circuit locating system decoded. In this way, a positioning and data transfer with any information can be realized by the same sensor element.

In an advantageous development of the invention such as the damping or the resistance of the locating resonant circuit is made variable. Further possibilities are, for example, that a variable inductance and / or a variable capacitance may be provided. The question of which parameter is changed as to encode the information, plays a minor role, if the coding is visible only in the response signal.

The resonant frequency of locating the resonant circuit is in this case tuned to a resonant frequency of the ortselektiven transmitting and / or receiving element in the resonant circuit locating system.

The control unit for the actuator to the encoded change of the electrical parameter is implemented advantageously in the form of an integrated circuit in the locating resonant circuit, so that an overall compact passive sensor unit, ie, a sensor unit results without its own energy supply, for example, can be molded into plastic or the like.

In a further development of this embodiment, a data memory is provided in addition. Such data storage may be used, for example, for temporarily storing at the location of the sensor element with locating resonant circuit sensor-detected data. However, it can also contain data on components in which the sensor element is mounted with locating resonant circuit. It can, for example, type specifications, technical data or the like are stored in such a data memory for transmission to the base unit of the sensor device in such a data memory.

As already mentioned above, it is possible to provide the sensory detection of the information by means of the sensor element with locating resonant circuit to be detected location. The locating the resonant circuit-containing sensor element is provided for this purpose advantageously with other sensors. Such sensors may be, for example, light sensors, temperature sensors, conductivity sensors or chemical sensors for material recognition. In this way, the determination of information about the environment of the sensor element with locating resonant circuit and forwarding to the base unit is possible, a level can be measured and, for example, with the aid of such a sensor element at the same time information about the nature of the filling medium, the temperature, whose color or turbidity, etc. may be determined and transmitted.

Preferably, the base unit is provided with a decoding unit for decoding the transmitted information. In this way, all data provided in processed form for further processing, eg in a machine control, a computer or the like are provided by the sensor device. Basically, however, it would also be possible to evaluate the information-containing signals to an external decoder.

The base unit of the sensor device according to the invention is preferably provided with an interface to an external computer unit. In the above-mentioned preferred embodiment, through these interfaces, the decoded data for further use, for example, transferred in a machine control, in a surveillance system or the like.

Preferably, the sensor device of the invention is for this purpose provided with a bus interface so that the sensor device is easy to operate with a plurality of further bus subscriber, for example, otherwise the sensor units or actuators.

In a particularly advantageous embodiment of the invention the locating resonant circuit-containing sensor element is designed as a so-called RFID-transponder, whose resonance frequency is tuned to the resonant frequency of the resonant circuit locating system. This embodiment has the advantage that existing commercially available RFID transponder technology can be used in appropriate cost savings for the transmission of information of the sensor device according to the invention. In this embodiment, an also commercially available as advantageously for the base unit with the ortselektiven transmitting and / or receiving unit, suitable reader are integrated to said RFID transponder.

A sensor device according to the invention can be equipped with several sensor elements which operate at different resonant frequencies, with a transmitting and / or receiving unit must be provided in the base unit for each resonance frequency. For this, a tunable or different transmitting and / or receiving units may be provided.

When using the sensor element in an environment in which the electromagnetic wave used, a frequency-changing medium, eg water transmit, a "detuning" of the resonance frequency of the sensor element can be provided with respect to the resonance frequency of the base unit to the frequency-distorting effects of such media at the site to compensate. In the case of the combination of locating the resonant circuit with RFID technology mentioned above in this case the targeted upset a single resonance frequency, including the locating resonant circuit is sufficient.

An embodiment of the invention will be explained in more detail below with reference to FIGS.

In detail

Figure 1 is a schematic sectional view through a coffee machine with the inventive sensor device and

Figure 2 shows an inventive sensor element having locating resonant circuit and coding.

The coffee machine 1 according to figure 1 comprises a machine body 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 resonant circuit is movably connected via a movable upper separating screen 6 with the filling 7 of the filter cartridge. 4 Shrinks the filling 7, the first sensor element 5 is lowered in the interior of the filter cartridge. 4 Expands the filling then off again, the first sensor element 5 is lifted again. In a first guide channel 8, a float formed as a second sensor element 9 is arranged. By forming as a float and is the second sensor element 9 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 detection system 12 extends laterally next to the water tank 3 substantially over its entire height. The resonant circuit locating system 12 transmits an electronic plug-in connection 13, transmitting and receiving coils, not shown, and an RFID reading unit 14 via the electronic connector 13, the resonant circuit detection system connected 12 to the main electronics unit of the beverage machine 1, including a microprocessor for controlling and evaluating the illustrated contactless sensor technology includes.

First, the first, the second and the third sensor element 5, 9 and 11 as a directional sensors are used. the position of the sensor elements 5, 9 and 11 can be detected via the above-mentioned, not shown in detail the transmitting and receiving coils on the resonant circuit locating system 12th The operation of such resonant circuit positioning systems and associated sensor elements correspond to the above-mentioned prior art.

In addition to the known use of such sensors, an RFID chip is (not shown in detail) is now in the first sensor element 5 is provided. About this RFID chip can using the interaction between the

Resonant circuit detection system 12 and the first sensor element 25 by a coded influence of the resonant circuit of the first sensor member 5 take place an exchange of information. It should be noted that both the location and the information transfer take place using the same tracking resonant circuit and thus using the same resonance frequency.

therefore may be made 7 via the first sensor element 5 on the one hand information on the state of filling 7 by measuring the filling level of the filling. The extent of such a filling 7 gives a measure of the loading state of filter resin so that in this way statements about the exhaustion of the filter cartridge can be taken.

Other sensors, such as conductivity sensors, temperature sensors or the like, can also be integrated and read out via the data transmission according to the invention, if necessary readily into such a sensor element.

In addition, 9, 11 other sensory functions, for example, the level control in the water tank 3, or a water change control can be fulfilled through the second and third sensor element.

The third sensor element 11 can be used for various purposes during operation of the machine to the control.

With the help of a sensor assembly according to the invention, 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 for example be determined based on the life of the filter cartridge in consideration of the flow rate. A Entkalkungshinweis the beverage machine can be generated based on the thus acquired state and / or operating data.

In principle, the possibility is given with an inventive sensor system to recognize a specific installation position of the filter. Also, functions that depend on this installation position, can therefore be detected with a sensor according to the invention and transmitted. Thus, an angle-dependent mounting position may be provided for example, in a filter cartridge, where a certain operating mode, or operating parameter is adjusted depending on the angle. For example, a mixing ratio between the filtered and unfiltered or treated in other ways water can be set with the angular position. Thus, a bypass opening could for example be modified dependent on the angle bypassing the filter section in its cross section.

In the case a position detection sensor according to the invention therefore also a parameter setting related can be detected on the part of the beverage machine and analyzed and integrated into the operation of the machine. So a notice on decalcification of the machine or on a filter change can for example be generated by the machine depending on the blending amount.

A machine use without a filter or with a wrong filter may also be detected, so that if warranty services and warranty claims may be coupled to the use of a proper filter.

By additionally provided for locating sensor data transmission, in particular via the described RFID technology, an authenticity monitoring is optionally connected possible with a lock of the machine when using an unauthenticated filter cartridge.

In addition, a storage unit can be accommodated in the sensor element of the filter cartridge 5, so that there cartridge-specific data can be stored. This cartridge-specific data can be stored or can be detected even during operation of the filter cartridge and stored, for example in the production of the filter cartridge. Thus, operational cartridge specific data in a temporary replacement of the filter cartridge 4 and their reinserted can be reused up to date.

Figure 2 shows the schematic structure of a sensor element of the invention 5. About a coil 15, a power and a coded data transmission by changing an electromagnetic field generated by the oscillating circuit tracking system will also be held. For this, the resonance frequencies of these two components are matched.

An integrated circuit 16 which generates among other things, the resistance and thus the damping of the resonant circuit, includes a data memory 17, and an encoding unit 18. Additional sensor units, such as a temperature sensor 19 may be provided at the sensor element. 5

The encoding unit 18 is able to change the damping of the resonant circuit and positioning so as to transmit over a predetermined coding information to an associated resonant circuit locating system, for example, the resonant circuit detection system 12 of FIG. 1 The arrangement according to figure 2 corresponds to the known RFID transponders. The thus transmitted information can be encoded accordingly via an RFID reader unit, for example, according to the RFID reading unit 14 in Figure 1, are read out and further processed.

In addition to the illustrated embodiment, many other embodiments of the sensor device, and more particularly the application of such a sensing device are also conceivable. A sensor device according to the invention can be used anywhere in machines, systems, etc., where a local recognition in combination with a data transfer is required.

LIST OF REFERENCE NUMBERS

1 coffee machine

2 machine housing

3 Water tank

4 filter cartridge

5 first sensor element

6 separating screen

7 filling

8 guide channel

9 second sensor element

10 water level

11 third sensor element

12 oscillator tracking system

13 electronic connector

14 RFID reader

15 coil

16 integrated circuit

17 data storage

18 coding

19 temperature sensor

Claims

Claims:
1. Sensor device with a base unit comprising a resonant circuit locating system having at least one ortselektiven transceiver element with a spatial detection by electromagnetic waves, and a sensor element which includes a locating resonant circuit for marking of the detected location, characterized in that the sensor element (5 ) comprises an encoder (16) for transmitting coded information.
2. Sensor device according to claim 1, characterized in that the information transmission is provided by means of which provided for locating electrical positioning resonant circuit.
3. Sensor device according to one of the preceding claims, characterized in that at least one transmitting and / or receiving antenna of the resonant circuit locating system is provided for transmitting coded information.
4. Sensor device according to claim 1 or 2, characterized in that the sensor element (5) having locating resonant circuit comprises an actuator and a control unit (16) for coded change an electrical parameter of the resonant circuit.
5. Sensor device according to one of the preceding claims characterized in that via the actuator, the attenuation or the resistance of the electrical resonant circuit is variable.
6. Sensor device according to one of the preceding claims characterized in that via the control element, the inductance and / or the capacity of locating the resonant circuit is variable.
7. Sensor device according to one of the preceding claims characterized in that an integrated circuit (16) is provided, which includes the control unit.
8. Sensor device according to one of the preceding claims characterized in that a data memory (17) is provided in the comprehensive locating the resonant circuit sensor element (5).
9. Sensor device according to one of the preceding claims characterized in that a data acquisition of further sensors (19) via the control unit (16) is provided locating the resonant circuit comprising the sensor element (5).
10. Sensor device according to one of the preceding claims characterized in that the base unit (12) comprises an evaluation unit (14) for decoding the transmitted information.
11. Sensor device according to one of the preceding claims characterized in that the base unit has an interface to an external computer.
12. Sensor device according to one of the preceding claims characterized in that the base unit comprises a bus interface.
13. Sensor device according to one of the preceding claims characterized in that the locating resonant circuit is designed as an RFID transponder, whose resonance frequency is tuned to the resonant circuit locating system.
EP20060791570 2005-08-13 2006-08-09 Sensor device provided with an oscillation circuit locating system and an encoded information transmission Withdrawn EP1912543A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE102005038369 2005-08-13
PCT/EP2006/007862 WO2007019993A1 (en) 2005-08-13 2006-08-09 Sensor device provided with an oscillation circuit locating system and an encoded information transmission

Publications (1)

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

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20060791570 Withdrawn EP1912543A1 (en) 2005-08-13 2006-08-09 Sensor device provided with an oscillation circuit locating system and an encoded information transmission

Country Status (2)

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

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CN105050458B (en) 2013-03-21 2018-07-17 荷兰联合利华有限公司 A method for brewing a beverage, capsule cartridge means and
USD732387S1 (en) 2013-03-21 2015-06-23 Conopco, Inc. Capsule
USD732386S1 (en) 2013-03-21 2015-06-23 Conopco, Inc. Capsule
EP3090663A1 (en) * 2015-05-06 2016-11-09 Qbo Coffee GmbH Machine for making beverages

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN102892341A (en) * 2010-05-10 2013-01-23 优瑞电子设备公司 Combination unit comprising a beverage preparation machine having a milk dispensing apparatus and a milk chilling device having a monitoring means for the filling level of the milk in the milk container, and method for dispensing milk and/or milk fro
CN102892341B (en) * 2010-05-10 2015-10-07 优瑞电子设备公司 Beverage machine combination unit and a cooling device and a method of using the dispensing unit

Also Published As

Publication number Publication date Type
WO2007019993A1 (en) 2007-02-22 application

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