EP1879428B1 - Dispositif de détermination de la température d'un milieu - Google Patents

Dispositif de détermination de la température d'un milieu Download PDF

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Publication number
EP1879428B1
EP1879428B1 EP06014765.9A EP06014765A EP1879428B1 EP 1879428 B1 EP1879428 B1 EP 1879428B1 EP 06014765 A EP06014765 A EP 06014765A EP 1879428 B1 EP1879428 B1 EP 1879428B1
Authority
EP
European Patent Office
Prior art keywords
temperature
receiving
mobile unit
arrangement according
foodstuff
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.)
Not-in-force
Application number
EP06014765.9A
Other languages
German (de)
English (en)
Other versions
EP1879428A1 (fr
Inventor
Frank Dipl.-Ing. Göltenboth
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.)
WMF Group GmbH
Original Assignee
WMF Group GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by WMF Group GmbH filed Critical WMF Group GmbH
Priority to EP06014765.9A priority Critical patent/EP1879428B1/fr
Priority to PCT/EP2007/005186 priority patent/WO2008006433A1/fr
Priority to JP2009518733A priority patent/JP2009544005A/ja
Priority to US12/307,163 priority patent/US8274392B2/en
Publication of EP1879428A1 publication Critical patent/EP1879428A1/fr
Application granted granted Critical
Publication of EP1879428B1 publication Critical patent/EP1879428B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00Heating by electric, magnetic or electromagnetic fields
    • H05B6/02Induction heating
    • H05B6/06Control, e.g. of temperature, of power
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00Heating by electric, magnetic or electromagnetic fields
    • H05B6/64Heating using microwaves
    • H05B6/6447Method of operation or details of the microwave heating apparatus related to the use of detectors or sensors
    • H05B6/645Method of operation or details of the microwave heating apparatus related to the use of detectors or sensors using temperature sensors

Definitions

  • One from the WO 2004/071131 known device which is used to control a cooking process for food, contains a temperature sensor and a wireless transmission device in the form of an RFID tag with an antenna and an RFID receiving and evaluation device.
  • the temperature sensor and the RFID tag are housed on the outside of a cooking vessel, preferably in its handle.
  • the receiving and evaluation device is located on the stove, for example.
  • the temperature measurement on the outside of a cooking vessel is not particularly accurate and reliable, however, since the temperature on the outside of the cooking vessel, especially in the case of cooking vessels with a relatively large diameter, differs noticeably from the temperature inside the food. Furthermore, this type of temperature monitoring is only possible if the cooking vessel is equipped with the transmission device and the temperature sensor. This means that the user can only use these cooking vessels.
  • a device for determining the temperature of the food is provided in the form of a roasting skewer, which is provided with a wireless transmission device which, together with the temperature sensor, is designed as a mobile unit for direct measurement in the food.
  • the receiving and evaluation device is arranged outside the food.
  • the transmission device and the sensor are supplied with energy from outside via radio waves, in particular via microwave energy.
  • the transmission frequency of the temperature sensor is changed proportionally to the temperature, ie the transmission frequency serves as an analog signal from the transmitter.
  • the not pre-published EP 1 726 882 A1 describes a cooking appliance with a temperature detection device and a temperature measuring device with a mobile unit comprising a temperature sensor and an RFID transponder, which is wirelessly coupled to a transmitter / receiver unit.
  • the temperature sensor can be inserted into solid food like a skewer.
  • An apparatus for measuring ocean currents in which temperature sensors of an arrangement between an anchor and a float are held ocean and send data via a cable to a wireless transmission device attached to a surface buoy, so that the wireless transmission device sends the data to a Can forward recipients on a ship.
  • the JP S58 173193 U discloses a device for determining the temperature of a food, the device having a mobile unit which contains a temperature sensor and a transmission device and is designed as a floating body.
  • WO 2005017476 is also state of the art.
  • roast thermometers are also known which can be inserted into the medium, for example with the aid of a skewer body, and can measure the temperature inside the medium.
  • meat thermometers have so far only been set up for reading or require, as in the EP-A-1 199 528 is described, a socket in the interior of the oven and, if necessary, wiring. But here too the area of application is limited to the oven.
  • the invention is therefore based on the object of creating a device for determining the temperature of a medium with an extended range of use.
  • the device according to the invention can be used universally and for every cooking vessel.
  • a significantly more meaningful temperature measurement is possible, since the temperature can be measured directly inside the medium.
  • the mobile unit is provided with suitable devices, which in particular hold the temperature sensor in a place where a temperature measurement is particularly useful and meaningful, which is achieved by a floating body that holds the temperature sensor in the middle of a liquid medium and prevents it, for example sinks to the very hot bottom of the vessel.
  • the mobile unit can also contain a sensor body that can be attached directly to a medium, for example designed as a skewer, which can be inserted into the medium, for example a roast.
  • a sensor body that can be attached directly to a medium, for example designed as a skewer, which can be inserted into the medium, for example a roast.
  • the transmission device contains a system for contactless data acquisition on the basis of radio frequency technology, as is the case with the commercially available RFID system.
  • RFID enables contactless data acquisition and consists of the data carrier (one chip and one antenna in each carrier - RFID tag) and a reader (consisting of an antenna and a decoder). Magnetic or electromagnetic fields are used for data transmission.
  • the RFID tag is able to send information in a low-frequency field even without its own power supply, with the energy for the low-frequency field being provided by the reader.
  • the receiving and evaluating device can be designed for a wide variety of tasks; for example an alarm can be triggered when predetermined limit values exceeded, the temperature determined can be displayed, a manual input device can be provided with which the user is able to enter limit values, for example, a timer can be provided and a control device can be provided which controls a heating source for the medium.
  • Fig. 1 shows a schematic block diagram of a device 1 according to the invention for determining the temperature of a medium.
  • the device according to the invention can be used for the most varied of purposes, but is particularly suitable for determining the temperature of foods that are heated for the purpose of preparation.
  • the device 1 contains a temperature-resistant, mobile unit 2 which, in the exemplary embodiment shown, contains a temperature sensor 3 and a transmission device 4.
  • the transmission device 4 is an RFID tag, ie a chip 4a with antenna 4b, as in FIG Fig. 3 shown in more detail.
  • the chip 4a contains the conventional components customary for these chips, an integrated temperature sensor 3 and possibly also a pressure sensor (not shown), which can be used to determine, for example, whether the mobile unit 2 is in the medium.
  • the device according to the invention also contains a receiving and evaluation device 6, which can be arranged separately from the mobile unit 2 and is in wireless connection with the mobile unit 2.
  • the receiving and evaluation device 6 contains the components usually required for the RFID tag (RFID transponder), for example an antenna 7 and an RFID reader 8 (RFID reader), with which the RFID tag is supplied with energy, for example, and the temperature detected by temperature sensor 3 can be read.
  • a control device 9 is also provided for processing the signals received.
  • the control device 9 is connected to a manual input device 10, for example a keyboard, by means of which the user can specify operating parameters.
  • a timer (not shown) and a display device 11, for example a display, are provided in order to display relevant or selected parameters, such as the identification of the mobile unit 2, a target temperature, a current temperature, the time that has elapsed or the time that is still available, manual inputs, etc.
  • An alarm device 12 is also provided by which an alarm can be triggered in the event of predetermined operating conditions, for example when a predetermined temperature has been exceeded, a predetermined time has elapsed or a predetermined temperature has been exceeded for a predetermined time or the like.
  • the alarm can be visual and / or acoustic.
  • the control device 9 also contains a timer.
  • the mobile unit 2 is placed in the medium, for example in a cooking item in a cooking vessel, and the receiving and evaluation device 6 is arranged at a suitable location outside the medium, for example on a stove.
  • the receiving and evaluation device can generate a low-frequency field cyclically or only on request, which causes the transmission device 4 to send its identity and the temperature determined by the sensor 3 and possibly information about the pressure determined by the pressure sensor.
  • These signals are processed by the control device 9 in the desired manner. For example, it is possible to only display the temperature and, if necessary, to trigger an alarm if a temperature entered manually via the input device 10 is exceeded, either immediately or only after a predetermined period of time.
  • the mobile unit 2 and the receiving and Auwert worn 6, with or without alarm device 12, can, however, as Fig. 2 shows, can be combined with a control unit 13 to form a device 1 'which is able to actively influence the temperature profile by controlling a heating source 14 for heating the medium.
  • the control unit 13 is connected to the controller 9, the desired temperature profile being entered via the input device 10 if it has not been previously stored in the controller.
  • the mobile unit 2 is intended to be arranged and used directly on or in the medium and can be designed in the most varied of ways in order to ensure that it optimally detects the temperature of the medium.
  • the mobile unit 2 can for example be provided with a sensor body which contains the temperature sensor 3 and is attached to a solid medium, for example by suitable fastening means such as clips or the like
  • Fig. 4 shows, be designed as a so-called meat thermometer 14, ie for insertion into a solid medium.
  • the meat thermometer 14 contains a skewer body 15 in which the temperature sensor 3 is accommodated and a head 16 which contains the antenna 4b and the chip 4a of the transmission device 4.
  • the head 16 is preferably designed so that the transmission device 4 is protected against excessive heating.
  • the mobile unit 2 is designed for flowable or liquid media in the form of a float 17 which contains a float 17a made of a floatable material, for example a temperature-resistant foam material, in which the antenna 4b and the chip 4a are embedded in a temperature-protected manner.
  • the temperature sensor 3 is preferably exposed on a surface of the floating body 17 so that an unhindered temperature measurement is possible.
  • the mobile unit 2 can also be designed as a combination of the meat thermometer and float, so that it can be used universally both in liquid media, ie in Media in which the floating body can swim, as well as in solid media, ie in media in which an inserted spear body 15 or a clip or the like holds, can be used.
  • the invention is also suitable for all other uses, for example in laboratory or process technology and for temperature monitoring of any kind, i.e. can be used for both heating and cooling.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Claims (8)

  1. Dispositif (1, 1') pour la détermination de la température d'un produit alimentaire,
    avec un dispositif de transmission sans fil (4) avec un capteur de température (3) et
    avec un dispositif de réception et d'évaluation (6) prévu à l'extérieur du dispositif de transmission (4),
    dans lequel le dispositif de transmission (4) avec le capteur de température (3) est conçu comme une unité mobile (2) pour la mesure directe de température dans ou sur le produit alimentaire et
    le dispositif de réception et d'évaluation (6) est conçu pour être disposé à l'extérieur du produit alimentaire,
    dans lequel l'unité mobile (2) contient un flotteur (17a),
    caractérisé en ce que le dispositif de transmission (4) contient une balise RFID et le dispositif de réception et d'évaluation (6) contient un appareil de lecture et d'évaluation RFID (8) avec alimentation électrique intégrée.
  2. Dispositif selon la revendication 1, caractérisé en ce que l'unité mobile (2) contient, en plus du flotteur (17a), un corps de capteur (15) pouvant être monté sur un produit alimentaire solide.
  3. Dispositif selon la revendication 2, caractérisé en ce que le corps de capteur (15) est conçu comme une broche pouvant être enfichée dans le produit alimentaire.
  4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que le dispositif de réception et d'évaluation (6) contient un dispositif d'alarme (12).
  5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que le dispositif de réception et d'évaluation (6) contient un dispositif d'affichage (11).
  6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce que le dispositif de réception et d'évaluation (6) contient un dispositif d'entrée manuelle (10).
  7. Dispositif selon l'une des revendications 1 à 6, caractérisé en ce que le dispositif de réception et d'évaluation (6) contient une minuterie.
  8. Dispositif selon l'une des revendications 1 à 7, caractérisé en ce que le dispositif de réception et d'évaluation (6) contient une unité de commande (13) pour le contrôle d'une source de chaleur (14) pour le produit alimentaire.
EP06014765.9A 2006-07-14 2006-07-14 Dispositif de détermination de la température d'un milieu Not-in-force EP1879428B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP06014765.9A EP1879428B1 (fr) 2006-07-14 2006-07-14 Dispositif de détermination de la température d'un milieu
PCT/EP2007/005186 WO2008006433A1 (fr) 2006-07-14 2007-06-12 Dispositif servant à déterminer la température d'un milieu
JP2009518733A JP2009544005A (ja) 2006-07-14 2007-06-12 媒体温度測定装置
US12/307,163 US8274392B2 (en) 2006-07-14 2007-06-12 Apparatus for determining the temperature of a medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06014765.9A EP1879428B1 (fr) 2006-07-14 2006-07-14 Dispositif de détermination de la température d'un milieu

Publications (2)

Publication Number Publication Date
EP1879428A1 EP1879428A1 (fr) 2008-01-16
EP1879428B1 true EP1879428B1 (fr) 2020-11-18

Family

ID=38347856

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06014765.9A Not-in-force EP1879428B1 (fr) 2006-07-14 2006-07-14 Dispositif de détermination de la température d'un milieu

Country Status (4)

Country Link
US (1) US8274392B2 (fr)
EP (1) EP1879428B1 (fr)
JP (1) JP2009544005A (fr)
WO (1) WO2008006433A1 (fr)

Families Citing this family (16)

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CA2602748A1 (fr) * 2007-09-14 2009-03-14 Intelligent Devices Inc. Etiquette de surveillance et d'enregistrement des conditions ambiantes avec capacite de teledetection
EP2182321A1 (fr) 2008-11-03 2010-05-05 Albis Technologies AG Procédé et système destinés à une localisation sensible à l'étage d'étiquettes RFID
US8463423B2 (en) * 2010-06-25 2013-06-11 Campbell Soup Company Methods and systems for measurement and control of process parameters
DE102011085526A1 (de) * 2011-10-31 2013-05-02 Wmf Württembergische Metallwarenfabrik Ag Steuerungs-, Regelungs- und Bedienvorrichtung für ein Gargerät
JP2014126499A (ja) * 2012-12-27 2014-07-07 Ar's Co Ltd 無線式温度分布測定センサ
JP6069013B2 (ja) * 2013-02-18 2017-01-25 ホシザキ株式会社 調理不良判別装置
CN104252638A (zh) * 2013-06-26 2014-12-31 成都新方洲信息技术有限公司 一种兼具温度及湿度传感器的多功能rfid标签
US9709447B2 (en) * 2014-04-08 2017-07-18 Aquanta Inc. Thermal energy metering using an enthalpy sensor
KR20170137830A (ko) * 2015-04-10 2017-12-13 덴마크스 텍니스케 유니버시테트 마이크로파 전력 센서 조립체를 포함하는 의료 제제 용기
CN105261179A (zh) * 2015-10-16 2016-01-20 北京机械设备研究所 一种导弹发射筒内环境参数无源无线监测方法
US10598549B2 (en) 2016-08-04 2020-03-24 The Vollrath Company, L.L.C. Wireless temperature probe
US11134321B2 (en) 2016-08-04 2021-09-28 The Vollrath Company, L.L.C. Wireless temperature probe
DE102016114619A1 (de) * 2016-08-08 2018-02-08 Miele & Cie. Kg Lebensmittelzubereitungsgerätesensor sowie ein Verfahren zum Betreiben eines Lebensmittelzubereitungsgerätesensors
WO2018069395A1 (fr) * 2016-10-12 2018-04-19 Danmarks Tekniske Universitet Ensemble capteur destiné à une chambre de cuisson d'un four à micro-ondes et procédé de commande de la consommation d'énergie d'un tel ensemble capteur
USD860828S1 (en) 2018-02-13 2019-09-24 Christopher Pesek Floating temperature sensor
DE102021208128A1 (de) 2021-07-28 2023-02-02 BSH Hausgeräte GmbH PEF-Sensorvorrichtung, PEF-System und Verfahren

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Publication number Priority date Publication date Assignee Title
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US4557608A (en) * 1984-05-10 1985-12-10 The United States Of America As Represented By The Secretary Of The Navy Thermal microstructure measurement system

Also Published As

Publication number Publication date
WO2008006433A1 (fr) 2008-01-17
EP1879428A1 (fr) 2008-01-16
JP2009544005A (ja) 2009-12-10
US8274392B2 (en) 2012-09-25
US20090315727A1 (en) 2009-12-24

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