WO2012084588A1 - Agencement et procédé pour l'enregistrement de données dans un appareil de cuisson - Google Patents

Agencement et procédé pour l'enregistrement de données dans un appareil de cuisson Download PDF

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Publication number
WO2012084588A1
WO2012084588A1 PCT/EP2011/072521 EP2011072521W WO2012084588A1 WO 2012084588 A1 WO2012084588 A1 WO 2012084588A1 EP 2011072521 W EP2011072521 W EP 2011072521W WO 2012084588 A1 WO2012084588 A1 WO 2012084588A1
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
evaluation unit
sensors
cooking appliance
arrangement according
Prior art date
Application number
PCT/EP2011/072521
Other languages
German (de)
English (en)
Inventor
Bernhard Koch
Gerhard Krimmel
Original Assignee
BSH Bosch und Siemens Hausgeräte 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 BSH Bosch und Siemens Hausgeräte GmbH filed Critical BSH Bosch und Siemens Hausgeräte GmbH
Priority to EP11794177.3A priority Critical patent/EP2655974A1/fr
Publication of WO2012084588A1 publication Critical patent/WO2012084588A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/02—Means for indicating or recording specially adapted for thermometers
    • G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/02—Means for indicating or recording specially adapted for thermometers
    • G01K1/026—Means for indicating or recording specially adapted for thermometers arrangements for monitoring a plurality of temperatures, e.g. by multiplexing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K2207/00—Application of thermometers in household appliances
    • G01K2207/02—Application of thermometers in household appliances for measuring food temperature
    • G01K2207/06—Application of thermometers in household appliances for measuring food temperature for preparation purposes

Definitions

  • the invention relates to an arrangement and a method for data acquisition in a cooking appliance as well as to such a cooking appliance.
  • Core temperature of a food tasted is one
  • Core temperature sensor typically has a tube at the top of which a temperature sensor is located. A user puts the core temperature probe with its tip into the food to be monitored before the start of the cooking process.
  • thermocouples are arranged along the feeler tube of which several thermocouples are arranged.
  • all positive connections of the thermocouples and a common negative line are routed via a cable to the electronics of the cooking appliance.
  • This arrangement requires in particular costly and expensive connectors.
  • the object of the invention is to avoid the abovementioned disadvantages and in particular to provide a solution which enables a wired transmission of a plurality of temperature readings of a temperature sensor, wherein preferably only a two-wire connection to a plurality of sensors of the temperature sensor is required.
  • a sensor comprising at least one sensor
  • the evaluation unit is set up such that at least one measured value or state of the at least one sensor can be queried.
  • a two-wire line must be provided to connect multiple sensors.
  • the at least one sensor the necessary electrical energy can be provided via the two-wire line.
  • a bidirectional communication between the interrogation unit and the at least one sensor is made possible via the two-wire line. This allows a high flexibility in the communication with the sensors as well as an initialization of the sensors can be done quickly, versatile and largely independent of the actual placement of the probe.
  • a multi-core bus comprising at least the two said lines may be provided.
  • the power supply of the sensors can also be independent of the two-wire line.
  • the two- or multi-wire cable can be provided exclusively for data communication.
  • the sensors are connected to the bus, i. with the wires of the
  • Bus coupled. Thereby, efficient bi-directional communication can occur over a common communication medium (i.e., said bus). It is not necessary to provide separate lines for each sensor.
  • a development is that the sensor is an active sensor and in particular has an energy store.
  • the energy store may, for example, be a (rechargeable) battery or a capacitor.
  • the rechargeable battery or the capacitor can be charged via the two-core cable from the evaluation unit.
  • the active sensor can, for example, transmit data to the evaluation unit by means of the electrical energy made available to it.
  • the sensor has an identification number.
  • the identification number may be a serial number, which is preferably randomly selected from a predefinable address space during production and allocated to the sensor (eg programmed in as part of production). As a result, the probability that two sensors with the same identification number are installed in the sensor can be kept low in a simple manner.
  • the probe has a variety of
  • the hardware address can be specified by a wiring of the sensor.
  • the sensor preferably comprises a plurality of terminals (pins), which may be occupied or not occupied.
  • the combination of assignment or non-assignment of the connections results in 2 k hardware addresses, where k is the number of hardware addresses
  • an initialization can be carried out between the at least one sensor and the evaluation unit, by means of which the evaluation unit determines the identification numbers of the at least one sensor and on the basis of the
  • Hardware address determines the position of the sensor on the probe.
  • an initialization can be done.
  • the initialization itself is flexible, so that the probe can be equipped with only a part of the possible sensors.
  • the senor has at least two sensors which are connected in parallel and both are connected to the two-wire line of the sensor.
  • data communication with the at least one sensor can be carried out via the two-wire line.
  • the two-wire line serves in particular as a bidirectional communication bus.
  • a next development consists in that the at least one sensor can be supplied with electrical energy via the two-wire line.
  • the communication bus can be used to power the sensors.
  • rechargeable energy storage of the sensors on the communication bus can be used to power the sensors.
  • the energy stores are preferably sized so that the sensors based on the stored energy with the
  • the sensors can provide temperature readings, brightness information, humidity information, and / or pressure readings. Combinations of the aforementioned sensors can also be arranged on the measuring sensor.
  • An alternative embodiment consists in that the evaluation unit is set up such that the at least one measured value or state of the at least one sensor of a control unit of a cooking appliance is provided.
  • the control unit of the cooking appliance can influence the control of the cooking appliance by means of the data provided by the evaluation unit and / or
  • At least one sensor of a measuring sensor is connected via a two-wire line to an evaluation unit
  • FIG. 1 shows a schematic representation of a system comprising a
  • Measuring sensor which has several temperature sensors and is inserted in a food to be cooked, the sensor with a bipolar
  • Connection socket is connected, which is connected to an evaluation unit; schematically in a sectional view of the sensor of Figure 1; Fig. 3 shows the printed circuit board of Fig. 2 with a plurality of sensors (e.g.
  • Temperature sensors which are connected in parallel with each other and connected to a two-wire connecting line; schematically a message flow diagram between a sensor and an evaluation unit.
  • At least one sensor is arranged in the measuring sensor, in particular up to 16 sensors can be provided. Of course, more than 16 sensors are possible. In this way, a plurality of measuring points corresponding to the number of sensors can be detected on the basis of the measuring sensor and transmitted via the two-wire line to a suitable evaluation unit and / or to a cooking appliance.
  • the sensors may be arranged on or in a suitable carrier material, for example in a sensor tube suitable for use with food. The sensor tube can be inserted into the food.
  • Sensors provided data can be transmitted from the evaluation in a defined format via a predetermined interface to the cooking appliance or other device control.
  • the evaluation in a defined format via a predetermined interface to the cooking appliance or other device control.
  • Device control e.g. regularly collects or requests the data cached by the evaluation unit.
  • the device control can optimize the cooking process and / or inform a user of different states of the cooking process.
  • the sensors preferably have a digital serial communication interface, wherein both data are transmitted via the two-wire connection to the evaluation unit and energy can be supplied to the sensors.
  • the sensor comprises an energy store (e.g., a capacitor or a battery) such that the sensor receives a condition or measurement, e.g. can transmit a temperature to the evaluation unit.
  • the communication with the sensors can be bidirectional so that e.g. the evaluation unit can specifically address a sensor and receives the requested information from this sensor.
  • FIG. 1 shows a schematic representation of a system comprising a measuring sensor 105, which has a plurality of temperature sensors and is plugged into a food 106.
  • the measuring sensor 105 is connected to a two-pole connecting socket 104, which is connected to an evaluation unit 101.
  • the evaluation unit 101 is connected to a device control 102 of the cooking appliance comprising the cooking chamber 103.
  • 2 shows schematically in a sectional view the measuring sensor 105, which has a sensor tube 202, wherein in the sensor tube 202, a printed circuit board 201 having a plurality of
  • the sensor 105 further comprises a handle 203, through a line is connected to a plug 204.
  • the plug can be connected to the connection socket 104 shown in FIG.
  • Fig. 3 shows the printed circuit board 201 of Fig. 2 with a plurality of sensors (e.g.
  • Temperature sensors 302 to 307 which are connected in parallel with each other and connected to a two-wire connecting line 301.
  • the two-wire connection cable connects the sensors 302 to 307 with the evaluation unit 101 (see FIG. 1).
  • the evaluation unit 101 supplies the sensors 302 to 307 with electrical energy (for example 3.3V).
  • the sensors 302-307 are implemented as active sensors so that they have the electrical energy needed to transmit data (e.g., temperature values or initialization). This can e.g. can be achieved by the sensors have a capacitor, which, after being connected to the evaluation unit (or the
  • Evaluation unit provided energy) was loaded, the respective sensor provides the necessary energy to send data.
  • Evaluation unit 101 is a bidirectional communication. So can the
  • Evaluation unit 101 after initialization of the sensors 302 to 307 query the temperature of each sensor and for further processing to the
  • the cooking appliance can also be controlled based on the data obtained and / or it can be a user
  • Information is provided concerning e.g. the temperature (s) in the food 106 or - based on the temperatures or temperature changes along the sensor 105 - a still required cooking time for the food 106.
  • the communication between the evaluation unit 101 and the sensors 302 to 307, in particular the initialization of the sensors 302 to 307, can take place in different ways.
  • a possibility using a serial digital protocol will be described by way of example.
  • the evaluation unit 101 supplies (or charges) the individual sensors with a predetermined voltage, for example 3.3V. Communication takes place via the two-wire connection line to the sensors, which in this case serves as a data bus between the sensors 302 and 307 and the evaluation unit 101.
  • a logic "0" may be indicated by the voltage of 3.3V for a short time "0" is placed and a logical "1" can be indicated by the
  • the evaluation unit 101 can transmit binary signals via the two-wire bus to the sensors 302 to 307 and the sensors 302 to 307 can transmit binary signals to the evaluation unit 101.
  • the sensors have an identification code or a serial number with a length of 48 bits, ie there are 2 48 distinguishable sensors. If, for example, 15 sensors are mounted in the sensor, then there is only a small amount
  • each sensor can have four (additional) ports, on the hardware side, a mounting position is linked: For example, the sensor in the top over all four ports (this corresponds to a logical hardware address "11 11") is controlled and the sensor, the handle on the next one is not addressed via any of the four ports (corresponding to a logical hardware address "0000").
  • FIG. 4 schematically shows a message flow diagram between a sensor 401 and an evaluation unit 402.
  • FIG. 4 shows by way of example only the one sensor 401, wherein according to the illustration shown in FIG. 3, a plurality of sensors 302 to 307 can be connected to the connection line 301.
  • connection line 301 represents the communication connection to the sensors 302 to 307, that is also to the sensor 401 shown in FIG. 4; this communication link can be considered as a two-wire bus.
  • the sensor 401 can be supplied with electrical energy via this two-wire bus.
  • the sensor 401 has an energy store (eg, a capacitor) that can be charged via the two-wire bus. After the charging process, which is completed relatively quickly, the sensor 401 has sufficient electrical energy to be able to transmit data via the two-wire bus to the evaluation unit 402.
  • the senor shown in FIG. 4 has a serial number "11" (binary). This short serial number serves above all the exemplary representation of the
  • the evaluation unit 402 After commissioning of the sensor, the evaluation unit 402 does not know the sensors installed in it; Also, the evaluation unit does not know at which position of the sensor tube the sensors are installed.
  • the evaluation unit 402 sends a request 403 via the two-wire bus to all sensors (broadcast message) and asks the connected sensors (also the sensor 401) to transmit their serial numbers to the evaluation unit. This is done bitwise, i. the sensors transmit the first bit of the serial number. If the first bit of the serial number is logic "0", the sensor transmits a 0-pulse of short duration and at a logic "1" the sensor transmits a 0-pulse long duration.
  • the evaluation unit 402 thus receives at several connected
  • Sensors at least one of which has a serial number starting with logic "1”, a binary “1” - the other "0" signals possibly transmitted by other sensors are covered by the at least one "1" signal and are for the evaluation unit 402 is not visible or recognizable.
  • the evaluation unit 402 Since the evaluation unit 402 has received a "1" signal in this example, the evaluation unit 402 sends a message 405 to the sensors that all sensors whose first bit of the serial number equals "0" do not coincide with the transmission of the
  • the evaluation unit 402 knows after receiving the message 406 (it only sees the "1" signal, a possibly also sent "0" signal is for the
  • Evaluation unit not recognizable that the serial number "1 1" from a sensor (namely the sensor 401 shown by way of example) is used.
  • the initialization or detection of further sensors proceeds according to the above principle in that the evaluation unit 402 specifically instructs the sensors that only those sensors are to respond whose (next) bit is not "0" or not "1".
  • the evaluation unit 402 can query the binary address space and determine sequentially which addresses are occupied by sensors of the sensor.
  • the evaluation unit 402 stores the addresses of the detected sensors and can now specifically address these sensors in a question-answer protocol. This also ensures that only one of the sensors always responds. For example, the evaluation unit 402 may send a message 407 (request) to the detected sensor 401 asking for the hardware address of the sensor 401. The sensor 401 then transmits its hardware address in a (response) message 408 to the evaluation unit 402. As already stated above, the hardware address indicates where the sensor 401 is placed along the sensor tube. The hardware address results from the wiring of the terminals of the sensor 401, which is detected by the sensor 401 and can be transmitted to the evaluation unit 402. The evaluation unit 402 knows which hardware address corresponds to which position and can therefore forward the data to the device controller.
  • the senor 401 may be a temperature sensor that provides a current temperature.
  • the sensor may also be a moisture sensor or a brightness sensor, with moisture or brightness information correspondingly being supplied to the evaluation unit 402.
  • the solution presented here has the advantage that a plurality of temperature values of a food can be detected by means of the plurality of sensors, without the need for complicated wiring of the sensors or complex connectors for a large number of sensors.
  • Another advantage is the flexibility to change the number of measuring points. For example, the number of measuring points between 1 and 15 can vary without much effort. LIST OF REFERENCE NUMBERS

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

L'invention concerne un agencement pour l'enregistrement de données dans un appareil de cuisson, qui comporte une sonde de mesure (105) comprenant au moins un capteur (302-307 ; 401), une unité d'analyse (101, 402), qui est reliée par une ligne (301) à deux fils à au moins un capteur (302-307 ; 401), l'unité d'analyse (101, 402) étant équipée de sorte qu'au moins une valeur de mesure ou l'état du au moins un capteur (302-307 ; 401) peut être interrogé. L'invention concerne également un procédé approprié et un appareil de cuisson doté d'un tel agencement.
PCT/EP2011/072521 2010-12-21 2011-12-13 Agencement et procédé pour l'enregistrement de données dans un appareil de cuisson WO2012084588A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11794177.3A EP2655974A1 (fr) 2010-12-21 2011-12-13 Agencement et procédé pour l'enregistrement de données dans un appareil de cuisson

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010063712 DE102010063712A1 (de) 2010-12-21 2010-12-21 Anordnung und Verfahren zur Datenerfassung in einem Gargerät
DE102010063712.2 2010-12-21

Publications (1)

Publication Number Publication Date
WO2012084588A1 true WO2012084588A1 (fr) 2012-06-28

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PCT/EP2011/072521 WO2012084588A1 (fr) 2010-12-21 2011-12-13 Agencement et procédé pour l'enregistrement de données dans un appareil de cuisson

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Country Link
EP (1) EP2655974A1 (fr)
DE (1) DE102010063712A1 (fr)
WO (1) WO2012084588A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020148329A1 (fr) 2019-01-17 2020-07-23 BSH Hausgeräte GmbH Préparation d'un aliment grâce à un accessoire d'un appareil de traitement des aliments
EP4119909A1 (fr) * 2021-07-13 2023-01-18 Vorwerk & Co. Interholding GmbH Thermomètre alimentaire, système et procédé de préparation des aliments

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012217357A1 (de) * 2012-09-26 2014-03-27 BSH Bosch und Siemens Hausgeräte GmbH Kerntemperaturfühler
DE102012112855B4 (de) 2012-12-21 2022-11-17 Rational Ag Gargerätmesseinheit mit mehreren Sensoren und Verfahren zur Ermittlung einer physikalischen Messgröße
DE102017206407B3 (de) * 2017-04-13 2018-07-05 E.G.O. Elektro-Gerätebau GmbH Schaltung und Verfahren zur Temperaturmessung und Temperaturfühler
DE102021117923A1 (de) 2021-07-12 2023-01-12 Axel Schnippering Thermometersonde

Citations (6)

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Publication number Priority date Publication date Assignee Title
US5983783A (en) * 1999-04-22 1999-11-16 Brookstone Company, Inc. Electronic chef's fork
DE10109246C1 (de) * 2001-02-26 2002-10-31 Rational Ag Garprozeßfühler und diesen Garprozeßfühler verwendendes Verfahren zum Bestimmen zumindest einer Gargutgröße eines Garguts
EP1275945A1 (fr) * 2001-07-09 2003-01-15 Ewig Industries Co., LTD. Système pour mesurer la température ayant deux capteurs
US7019638B1 (en) * 2002-05-10 2006-03-28 A La Cart, Inc. Food information monitoring system
DE102006048753A1 (de) * 2006-10-12 2008-04-24 Elmko Gmbh Einstechfühler zur Messung der Kerntemperatur von Gargut
CA2613858A1 (fr) * 2007-11-16 2009-05-16 Wolfedale Engineering Limited Regulateur de temperature et procede connexe pour un gril de barbecue

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5983783A (en) * 1999-04-22 1999-11-16 Brookstone Company, Inc. Electronic chef's fork
US5983783C1 (en) * 1999-04-22 2001-01-30 Brookstone Co Inc Electronic chef's fork
DE10109246C1 (de) * 2001-02-26 2002-10-31 Rational Ag Garprozeßfühler und diesen Garprozeßfühler verwendendes Verfahren zum Bestimmen zumindest einer Gargutgröße eines Garguts
EP1275945A1 (fr) * 2001-07-09 2003-01-15 Ewig Industries Co., LTD. Système pour mesurer la température ayant deux capteurs
US7019638B1 (en) * 2002-05-10 2006-03-28 A La Cart, Inc. Food information monitoring system
DE102006048753A1 (de) * 2006-10-12 2008-04-24 Elmko Gmbh Einstechfühler zur Messung der Kerntemperatur von Gargut
CA2613858A1 (fr) * 2007-11-16 2009-05-16 Wolfedale Engineering Limited Regulateur de temperature et procede connexe pour un gril de barbecue

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020148329A1 (fr) 2019-01-17 2020-07-23 BSH Hausgeräte GmbH Préparation d'un aliment grâce à un accessoire d'un appareil de traitement des aliments
DE102019200548A1 (de) 2019-01-17 2020-07-23 BSH Hausgeräte GmbH Zubereiten eines Lebensmittels mit einem Zubehör eines Lebensmittel-Behandlungsgeräts
EP4119909A1 (fr) * 2021-07-13 2023-01-18 Vorwerk & Co. Interholding GmbH Thermomètre alimentaire, système et procédé de préparation des aliments

Also Published As

Publication number Publication date
EP2655974A1 (fr) 2013-10-30
DE102010063712A1 (de) 2012-06-21

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