EP1116471A2 - Procédé et dispositif pour determiner le dégre de salissure de la vaisselle - Google Patents

Procédé et dispositif pour determiner le dégre de salissure de la vaisselle Download PDF

Info

Publication number
EP1116471A2
EP1116471A2 EP00125028A EP00125028A EP1116471A2 EP 1116471 A2 EP1116471 A2 EP 1116471A2 EP 00125028 A EP00125028 A EP 00125028A EP 00125028 A EP00125028 A EP 00125028A EP 1116471 A2 EP1116471 A2 EP 1116471A2
Authority
EP
European Patent Office
Prior art keywords
cleaned
dishwasher
receiving element
testing device
radiation
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Withdrawn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
EP00125028A
Other languages
German (de)
English (en)
Other versions
EP1116471A3 (fr
Inventor
Walter Dipl.Ing. Sams (FH)
Tilmann Dr.Rer.Nat. Lorenz
Willibald Dipl.-Ing. Reitmeier
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete 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 Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1116471A2 publication Critical patent/EP1116471A2/fr
Publication of EP1116471A3 publication Critical patent/EP1116471A3/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4295—Arrangements for detecting or measuring the condition of the crockery or tableware, e.g. nature or quantity

Definitions

  • the invention relates to a method for determining the pollution of a Good to be cleaned using electromagnetic radiation, in which the radiation Contains wavelengths caused by contaminants on the surface of the surface to be cleaned Guts are absorbed, in which those reflected and / or transmitted by the dishes Radiation is measured, and in which from the reflected or the transmitted Radiation on the type and / or the amount of contaminants on the dishes is closed.
  • the invention also relates to a dishwasher for cleaning one to be cleaned Guts or a testing device for testing one to be cleaned or one cleaned Guts with a device for detecting contamination on the to be cleaned or the cleaned good.
  • the aim of treating dishes in a dishwasher is to remove contaminants from them to remove the goods to be cleaned.
  • a liquid washing liquor is generally used used, which is mixed with cleaning agents and especially at elevated temperatures is sprayed onto the items to be cleaned under pressure.
  • optical turbidity sensors use for dishwashers where electromagnetic radiation is in a Rinsing liquor is blasted in, preferably for at least one wavelength range a wavelength, the amount of radiation under each predetermined Angle emerging radiation is determined, from which the Art and the concentration of contaminants and / or detergent components in the wash liquor are determined and the wash program based on these determined data is optimized.
  • the parameters of the radiation emerging again are, for example, the Radiation amount or intensity, color or wavelength, polarization or that Spectrum of the scattered radiation determined.
  • a disadvantage of the known method is that the dishes are not soiled is detected.
  • the increasing pollution of the washing liquor is only an indirect indication on cleaning. It can be seen that in the course of the rinsing process Rinsing liquor is increasingly contaminated, which also causes The cleaning effect of the washing liquor decreases, but it cannot be determined whether the dishes is actually cleaned of all contaminants, or whether contamination is on have remained on its surface.
  • a particular advantage of the invention is that the use of electromagnetic Radiation and by directly irradiating the dishes themselves precise information about the type and strength of the contaminants on the surface of the Dishes can win.
  • Any kind of pollution such as margarine, egg yolk, Spinach, oatmeal, minced meat, milk and tea exhibit when irradiated with light, for example with infrared light, characteristic absorption lines on, so that in the reflection spectrum at these wavelengths attenuations in the intensity of the reflected Signal result, the weakening is a measure of the strength of the pollution.
  • both a method for determining the pollution as well as a method of washing dishes in a dishwasher as well a device for determining the pollution and one with such Device equipped dishwasher created.
  • Any transmission element is suitable for emitting the electromagnetic radiation radiation in the wavelength range relevant for the detection of pollution emits, for example an incandescent lamp, a halogen lamp, a mercury vapor lamp, a light emitting diode, a laser diode, a gas laser or the like.
  • transmitters which emit a narrow-band spectrum, or transmitters that produce monochromatic light.
  • monochromatic or narrowband Suitable transmitters in connection with one or more receivers these can be broadband, provided that they only the bandwidth of the transmitter or the Transmitters include radiation emitted.
  • broadband radiators can be used and use assigned wavelength-selective receivers.
  • wavelength selective Broadband transmitters and / or receivers can also be used, if narrowband filters are assigned to either the transmitters or the receivers are.
  • a plurality of transmitter elements is preferably also used, these being either different spectra or monochromatic light of different wavelengths produce.
  • the receiving elements are correspondingly adapted to the transmitting elements.
  • Photodiodes or phototransistors are particularly suitable as receiving elements. If the transmitting element emits radiation in several wavelengths, it is preferred a plurality of receiving elements, in particular photodiodes, for example used with an upstream filter or grid, or a photodiode array or CCD's (Charged Coupled Devices) that absorb light and corresponding electrical Generate signals, which are preferably amplified and fed to an evaluation circuit become.
  • CCD's Charge Coupled Devices
  • the dishes are reflected to determine the level of contamination Radiation exploited, but also the use of transmitted radiation is not excluded, provided the dishes are transparent to the radiation, for example in the infrared or ultraviolet range.
  • An evaluation circuit obtains information for an operator from the measurement signals or customer service. When testing in a test device, the information for Check of a rinsing process used.
  • a movably arranged receiving device provided with which the goods to be cleaned in the manner of a scanner is driven. This also allows location information about the soiling receive.
  • the movable arrangement is, for example, by means of a movable prism or mirror realized.
  • the receiving element on the spray arm is advantageous appropriate.
  • Transmitting and receiving elements are preferably used in connection with optical devices, in particular focusing lenses, optical fibers and optical and / or electrical arrangements used to amplify optical or electrical signals.
  • Filters are also advantageously used to separate out narrow spectral ranges.
  • Diffraction gratings are suitable for this, for example, at different angles different wavelengths are transmissive, prisms, holographic filters, gratings and the like.
  • Optical fibers are preferably also used, which allow Transmitting and receiving elements on a low thermal and / or mechanical Place exposed to loads within the dishwasher or testing device arrange and the electromagnetic radiation in the area where the dishes is cleaned, via an optical fiber coupling and / or out of this area to lead to the receiving element via an optical waveguide.
  • optical fibers has the further advantage that high temperatures, which are often be used when washing dishes, the optical elements such.
  • a protective glass can preferably also be provided, the transmission and / or Shields receiving elements from the rinsing container and preferably can be removed by the user so that it can be cleaned.
  • the transmitting and / or receiving elements can be for example, calibrate each time the device is switched on.
  • spectra are suitable for evaluating the spectra, for example, their slope, the height of the peaks, the height ratio of different ones Peaks, derivation functions from the spectra, as quantities obtained from the spectra.
  • a factor analysis of the spectra is preferably also carried out.
  • everybody there The data obtained can be stored in the storage unit and are then available Comparison with later measurement results available.
  • This is in the evaluation circuit also recognized the amount of pollution present to the amount of the detergent to be dosed accordingly. If the evaluation circuit also determines which dirt is mainly present on the items to be cleaned and if there are several cleaning agents suitable for different types of dirt Are available, the evaluation circuit also determines the amount in each case the detergent suitable for the pollution must be dosed.
  • the evaluation unit comprises a fuzzy logic or a neural network in which different spectra or parts of spectra for the detection of permanent properties of contaminants are.
  • Spectra are preferably for different types of soiling on the dishes in a storage unit before or during operation of the tester or the dishwasher is successively stored so that it can then be used when checking the cleaning status of dishes or when cleaning Cleaning dishes in the dishwasher must be taken into account.
  • a dishwasher 1 according to the invention (FIG. 1) has a washing container 2, in the dishes to be cleaned 30, d. H. to be cleaned in the dishwasher 1 Good, for example in the form of plates, pots, cutlery, etc., usually in baskets 3, 4 is filled.
  • Two spray devices 5, 6 are arranged in the washing container 2, to apply liquid to the material 30 to be cleaned.
  • This liquid Usually called rinsing liquor, is in a liquid pump by means of a circulation pump 7 8, 9 transported to the spray devices 5, 6.
  • the liquid conveyed in dishwashers 1 is usually at least in a sub-program section of a washing program heated, for which a water heater 10 serves.
  • the pumped liquid is from the circulation pump 7 to an inlet connection 11 of the instantaneous water heater 10 and passed through the instantaneous water heater 10.
  • This has at least two outlet ports 12, 13, of which the liquid via the Liquid feed lines 8, 9 are fed to the respective spray devices 5, 6.
  • a heater In the heater 10 is arranged a heater, not shown here.
  • Transmitting elements 31 and receiving elements 32 are arranged. From the sending elements 31 electromagnetic radiation is radiated onto and from the dishes 30 reflected on the receiving elements 32.
  • the transmitting and receiving elements 31, 32 are each connected via lines 33 and 34 to an evaluation circuit 35 in which a Comparison between the transmitted and the received spectra is made. Based the pollution-specific absorption of electromagnetic radiation can be based on the type of impurities and the intensity of the absorption deduce the amount of the respective impurities.
  • a plurality of transmission elements 31 are located on the inside of the washing compartment 2 delimiting walls 15, 16 are distributed, can be at least a part of in the dishwasher 1 Detect inserted dishes 30. Based on the whole irradiated surface of the dishes 30 can then the evaluation circuit 35 by Contamination covered area of the dishes 30, based on the total area of crockery parts 30.
  • the reflected radiation can also be transmitted through the receiving elements Split 32 upstream filters, in particular optical gratings, that the individual receiving elements 32 each have different spectral components of the reflected radiation, wherein the receiving elements 32 are preferably from Diodes, for example silicon or InGaAs diodes, are formed.
  • the method described above can also be used in a test device by means of its washing and washing processes in different dishwashers compared become. This allows objective information about the quality of washing processes to reach.
  • the test device either that is already from a dishwasher cleaned good then examined whether it already had the required degree of cleaning to thereby evaluate the cleaning result of the dishwasher, or the dishes to be cleaned are examined.
  • the invention can be used both before the start of a rinsing process to control the amount of the cleaning agent, the temperature, the amount of cleaning liquid to be used, adjust the rotational speed of the spray arms 5, 6, as well as during the rinsing process to make a comparison between the initial contamination and the current pollution, in order to make a statement about the further duration of the Rinsing process or other measures still to be taken during the rinsing process to get to the desired cleaning result.

Landscapes

  • Washing And Drying Of Tableware (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
EP00125028A 1999-12-21 2000-11-16 Procédé et dispositif pour determiner le dégre de salissure de la vaisselle Withdrawn EP1116471A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19961782 1999-12-21
DE1999161782 DE19961782A1 (de) 1999-12-21 1999-12-21 Haushaltgerät mit einem Temperatursensor

Publications (2)

Publication Number Publication Date
EP1116471A2 true EP1116471A2 (fr) 2001-07-18
EP1116471A3 EP1116471A3 (fr) 2001-10-10

Family

ID=7933655

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00125028A Withdrawn EP1116471A3 (fr) 1999-12-21 2000-11-16 Procédé et dispositif pour determiner le dégre de salissure de la vaisselle

Country Status (2)

Country Link
EP (1) EP1116471A3 (fr)
DE (1) DE19961782A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1779762A1 (fr) * 2005-10-27 2007-05-02 Electrolux Home Products Corporation N.V. Réseau des appareils électroménagers à commande par programme
WO2010010115A3 (fr) * 2008-07-23 2010-09-16 BSH Bosch und Siemens Hausgeräte GmbH Procédé de lavage pour un appareil ménager à circulation d'eau, en particulier pour un lave-vaisselle
EP3434168A1 (fr) * 2017-07-27 2019-01-30 Vestel Elektronik Sanayi ve Ticaret A.S. Lave-vaisselle, procédé de fonctionnement d'un lave-vaisselle et programme informatique
EP3494856A1 (fr) * 2017-12-07 2019-06-12 Vestel Elektronik Sanayi ve Ticaret A.S. Lave-vaisselle sensible à la charge
WO2020224956A1 (fr) * 2019-05-06 2020-11-12 BSH Hausgeräte GmbH Appareil électroménager à circulation d'eau
WO2021239537A1 (fr) * 2020-05-25 2021-12-02 BSH Hausgeräte GmbH Système comprenant un lave-vaisselle, et procédé de fonctionnement d'un lave-vaisselle
US11882980B2 (en) * 2017-07-19 2024-01-30 BSH Hausgeräte GmbH Household dishwasher machine and method for operating a household dishwasher machine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004035847A1 (de) * 2004-07-23 2006-03-23 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zur Erkennung der Spülgutbeladung und Geschirrspülmaschine
ES2295749T3 (es) * 2004-09-10 2008-04-16 Cognis Ip Management Gmbh Procedimiento para la medida cuantitativa de los depositos sobre superficies solidas.

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3619209A1 (de) * 1986-06-07 1987-12-10 Bosch Gmbh Robert Vorrichtung zum optischen erfassen von fremdkoerpern
EP0653620A1 (fr) * 1993-10-26 1995-05-17 Siemens Aktiengesellschaft Capteur optique
DE19824625A1 (de) * 1997-09-30 1999-04-01 Univ Ilmenau Tech Vorrichtung zur Detektion des Zustandes von Oberflächen
DE19806559A1 (de) * 1998-02-17 1999-08-19 Bosch Siemens Hausgeraete Verfahren und Vorrichtung zur Behandlung von Geschirr in Spülmaschinen
EP0943287A1 (fr) * 1998-03-20 1999-09-22 AEG Hausgeräte GmbH Lave-vaisselle et système de fonctionnement de ce dernier
DE19834526A1 (de) * 1998-06-13 1999-12-16 Gunther Krieg Verfahren und Vorrichtung zur Detektion von Kontaminationen in Kunststoff Mehrwegflaschen / -Behälter, insbesondere bei nicht - rotationssymmetrischer Formgebung des Bodens

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2485054A1 (fr) * 1980-06-18 1981-12-24 Labo Electronique Physique Procede de detection du deteint au cours d'une operation de lavage dans une machine a laver et mise en oeuvre dudit procede
DE3715798A1 (de) * 1987-05-12 1988-01-07 Erich Ing Grad Huber Opto-elektronische einrichtung zum erkennen von verschmutzung transparenter schutzscheiben und ausloesen der reinigungsmassnahmen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3619209A1 (de) * 1986-06-07 1987-12-10 Bosch Gmbh Robert Vorrichtung zum optischen erfassen von fremdkoerpern
EP0653620A1 (fr) * 1993-10-26 1995-05-17 Siemens Aktiengesellschaft Capteur optique
DE19824625A1 (de) * 1997-09-30 1999-04-01 Univ Ilmenau Tech Vorrichtung zur Detektion des Zustandes von Oberflächen
DE19806559A1 (de) * 1998-02-17 1999-08-19 Bosch Siemens Hausgeraete Verfahren und Vorrichtung zur Behandlung von Geschirr in Spülmaschinen
EP0943287A1 (fr) * 1998-03-20 1999-09-22 AEG Hausgeräte GmbH Lave-vaisselle et système de fonctionnement de ce dernier
DE19834526A1 (de) * 1998-06-13 1999-12-16 Gunther Krieg Verfahren und Vorrichtung zur Detektion von Kontaminationen in Kunststoff Mehrwegflaschen / -Behälter, insbesondere bei nicht - rotationssymmetrischer Formgebung des Bodens

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1779762A1 (fr) * 2005-10-27 2007-05-02 Electrolux Home Products Corporation N.V. Réseau des appareils électroménagers à commande par programme
WO2007048482A1 (fr) * 2005-10-27 2007-05-03 Electrolux Home Products Corporation N.V. Réseau d'appareils électroménagers commandés par programme
WO2010010115A3 (fr) * 2008-07-23 2010-09-16 BSH Bosch und Siemens Hausgeräte GmbH Procédé de lavage pour un appareil ménager à circulation d'eau, en particulier pour un lave-vaisselle
US8888927B2 (en) 2008-07-23 2014-11-18 Bsh Bosch Und Siemens Hausgeraete Gmbh Rinsing method for a water-bearing domestic appliance, especially dishwasher
US11882980B2 (en) * 2017-07-19 2024-01-30 BSH Hausgeräte GmbH Household dishwasher machine and method for operating a household dishwasher machine
EP3434168A1 (fr) * 2017-07-27 2019-01-30 Vestel Elektronik Sanayi ve Ticaret A.S. Lave-vaisselle, procédé de fonctionnement d'un lave-vaisselle et programme informatique
EP3494856A1 (fr) * 2017-12-07 2019-06-12 Vestel Elektronik Sanayi ve Ticaret A.S. Lave-vaisselle sensible à la charge
WO2020224956A1 (fr) * 2019-05-06 2020-11-12 BSH Hausgeräte GmbH Appareil électroménager à circulation d'eau
WO2021239537A1 (fr) * 2020-05-25 2021-12-02 BSH Hausgeräte GmbH Système comprenant un lave-vaisselle, et procédé de fonctionnement d'un lave-vaisselle

Also Published As

Publication number Publication date
DE19961782A1 (de) 2001-06-28
EP1116471A3 (fr) 2001-10-10

Similar Documents

Publication Publication Date Title
EP1242665B2 (fr) Appareil pour traiter des textiles avec un circuit d'evaluation pour identifier le type de textile et/ou l'humidite d'une piece de linge
DE19806559B4 (de) Verfahren und Vorrichtung zur Behandlung von Geschirr in Spülmaschinen
DE69719238T2 (de) Optische Vorrichtung zur Messung von Streulicht
EP3475477B1 (fr) Procédé de commande améliorée d'un appareil ménager conducteur d'eau et appareil ménager associé
EP3375931B1 (fr) Appareil électroménager pourvu d'une fonction de séchage et d'un dispositif de détection d'une humidité ainsi que procédé de détection de l'humidité
WO2005106431A1 (fr) Tete de mesure spectrometrique et son procede de recalibrage
EP0682243B1 (fr) Dispositif et procédé pour la mesure du degré du cuisson de ferment alimentaire
DE102016205756A1 (de) Verfahren zur verbesserten Steuerung eines wasserführenden Haushaltsgerätes und hierzu geeignetes Haushaltsgerät
EP1116471A2 (fr) Procédé et dispositif pour determiner le dégre de salissure de la vaisselle
DE102016217031A1 (de) Verfahren zum Betrieb einer Waschmaschine oder eines Waschtrockners mit verbesserter Steuerung sowie hierzu geeignete Waschmaschine oder geeigneter Waschtrockner
DE102008057115B4 (de) Verfahren zur quantitativen Bestimmung der Konzentration von Fluorophoren einer Substanz in einer Probe und Vorrichtung zu seiner Durchführung
DE102021126051B3 (de) Vorrichtung, Haushaltsgerät und Verfahren zur Erkennung von Stoffgruppen in einem Fluid innerhalb eines Haushaltsgerätes sowie Verfahren zur Anpassung eines Reinigungsprozesses eines wasserführenden Haushaltsgerätes
DE60018208T2 (de) Bestimmung der kappa-nummer in chemischem zellstoff durch ramanspektroskopie
EP1410002B1 (fr) Procede pour identifier des corps etrangers dans un materiau textile
DE19806560B4 (de) Verfahren und Vorrichtung zum Waschen und/oder Spülen von Wäsche in Waschmaschinen bzw. Waschtrocknern
EP1252857A2 (fr) Capteur de turbidité pour mesurer la turbidité dans le liquide de lavage d'un lave-vaiselle
WO2019120876A1 (fr) Procédé pour faire fonctionner un appareil ménager à circulation d'eau comprenant un spectromètre et appareil ménager approprié à cet effet
EP3538705B1 (fr) Procédé de commande améliorée d'un appareil électroménager à circulation d'eau et appareil électroménager associé
DE19714664A1 (de) Wasch- oder Spülmaschine mit Trübungssensor
DE102010002589A1 (de) Verfahren zum Bestimmen einer Mediumzusammensetzung eines flüssigen Mediums in einem Hausgerät zur Behandlung von Wäschestücken sowie System und Hausgerät dazu
DE102016210169A1 (de) Verfahren zur verbesserten Steuerung eines wasserführenden Haushaltsgerätes und hierzu geeignetes Haushaltsgerät
DE102015104452A1 (de) Haushaltsgerät mit Wasserfilterkartusche und Verfahren zum Erfassen eines Zustands einer Wasserfilterkartusche in einem Haushaltsgerät
DE112012006501B4 (de) Biochemisches Analysesystem und Lichtmodul desselben
WO2018158209A1 (fr) Procédé et dispositif d'examen optique d'un liquide
DE19627594C2 (de) Verfahren zur Bestimmung der Trübung eines gasförmigen oder flüssigen Mediums

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20020410

AKX Designation fees paid

Free format text: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: BSH BOSCH UND SIEMENS HAUSGERAETE GMBH

17Q First examination report despatched

Effective date: 20080619

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20080603