EP3538705A1 - Verfahren zur verbesserten steuerung eines wasserführenden haushaltsgerätes und hierzu geeignetes haushaltsgerät - Google Patents
Verfahren zur verbesserten steuerung eines wasserführenden haushaltsgerätes und hierzu geeignetes haushaltsgerätInfo
- Publication number
- EP3538705A1 EP3538705A1 EP17794280.2A EP17794280A EP3538705A1 EP 3538705 A1 EP3538705 A1 EP 3538705A1 EP 17794280 A EP17794280 A EP 17794280A EP 3538705 A1 EP3538705 A1 EP 3538705A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- radiation
- drum
- control device
- household appliance
- microcomputer
- 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.)
- Granted
Links
Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/14—Arrangements for detecting or measuring specific parameters
- D06F34/18—Condition of the laundry, e.g. nature or weight
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/02—Characteristics of laundry or load
- D06F2103/06—Type or material
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/02—Characteristics of laundry or load
- D06F2103/08—Humidity
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/20—Washing liquid condition, e.g. turbidity
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/20—Washing liquid condition, e.g. turbidity
- D06F2103/22—Content of detergent or additives
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/24—Spin speed; Drum movements
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/64—Radiation, e.g. microwaves
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/42—Detergent or additive supply
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/58—Indications or alarms to the control system or to the user
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/58—Indications or alarms to the control system or to the user
- D06F2105/60—Audible signals
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/04—Signal transfer or data transmission arrangements
- D06F34/05—Signal transfer or data transmission arrangements for wireless communication between components, e.g. for remote monitoring or control
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/02—Rotary receptacles, e.g. drums
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/26—Casings; Tubs
- D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/32—Control of operations performed in domestic laundry dryers
- D06F58/34—Control of operations performed in domestic laundry dryers characterised by the purpose or target of the control
- D06F58/36—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry
- D06F58/38—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry of drying, e.g. to achieve the target humidity
Definitions
- the invention relates to a method for operating a water-conducting household appliance with a drum for receiving objects to be treated, which has at least one perimeter with at least one radiation passage, a control device, a spectrometer, which comprises at least one radiation source, at least one radiation detector and a microcomputer, wherein Microcomputer and control device are set up to exchange information with each other, so that data can be exchanged between spectrometer and control device.
- the invention also relates to a suitable for carrying out this method water-conducting household appliance.
- detergents and cleaning agents are used for cleaning articles in water-bearing household appliances.
- These detergents and cleaners generally have a complex composition, since in addition to washing-active substances, so-called surfactants, often enzymes, bleach, water softeners and the like are included.
- surfactants are of particular importance in the cleaning process, since these compounds, the interfacial tension at the interface water / fat is lowered, and therefore they contribute significantly to a removal of contaminants from, for example, textiles.
- ionic, nonionic and amphoteric surfactants are used in particular anionic surfactants, mainly alkylbenzene sulfates.
- Fatty contaminants are generally removed by the addition of surfactants to the contaminants.
- the contaminants are surrounded by the surfactant molecules and form surfactant / soil micelles in an aqueous phase.
- the grease dirt in the form of a fat / water emulsion can go into solution and be transported away with the wash liquor or the cleaning liquid.
- treating agent the amount of detergent or cleaning agent necessary for an optimal cleaning process because of a dependency on a number of parameters such as the type and degree of soiling, the amount of load or material the objects to be treated, for example, the type of textile exists.
- the publication DE 10 2012 017 323 A1 describes a water-conducting domestic appliance, in particular a laundry treatment appliance for washing laundry, with a treatment area, a metering pump, at least one A treatment agent container and a display device, wherein the treatment agent container is used for receiving an amount of a flowable treatment agent, which is sufficient for multiple treatments in the treatment area.
- the amount of the treatment agent delivered by the metering pump is displayed by the display device and / or a residual amount of the treatment agent in the treatment agent container is displayed by the display device.
- the publication DE 10 2010 039 61 1 A1 describes a dishwasher, in particular a domestic dishwasher, with a control device, in which at least one washing program for executing a washing cycle comprising several partial washing cycles is stored for cleaning and / or drying items to be washed, and with an operating device for the input of Operating commands for the control device.
- At least one operating command for executing one or more adaptation measures can be input at the operating device to at least one of the rinsing programs, by means of which the avoidance of stains on the items to be washed and / or the drying result on the items to be washed is improved on the basis of the adapted rinse program ,
- radiation sensors e.g. IR sensors
- IR sensors for the detection of textile types, level and amount of water in the drum of washing machines and dryers.
- the publication WO 2001/046509 A1 describes a device for treating textiles with a device for detecting properties of a textile, wherein the device comprises at least one transmitting and at least one receiving element for transmitting or receiving electromagnetic radiation as well as an evaluation circuit connected to the receiving element in which the radiation emitted by the transmitting element and reflected and / or transmitted by the textile is receivable by the receiving element and can be evaluated in the evaluation circuit.
- the publication DE 10 2015 100 395 A1 describes a spectrometer, in particular for installation in a sensor module with a radiation source and the following, a beam path defining or along the beam path arranged components: a sample space for a fluid to be examined, a first lens, a diffraction element, a second lens, and a detector.
- a restriction aperture is provided between the sample space and the diffraction element.
- the publication EP 0 816 551 B1 discloses an infrared temperature detection for a drum dryer control, in particular a dryer with a rotary drum for receiving and for spinning moist articles to be dried, a heater for heating the articles, a blower unit for passing air over the articles in FIG the drum and an infrared detecting device which provides a control signal corresponding to the temperature of the articles in the drum.
- the publication EP 1242665 B1 describes a device for the treatment of textiles with an evaluation circuit for detecting the type of textile and / or the moisture of a piece of laundry.
- the device uses transmitting and receiving elements for transmitting or receiving electromagnetic radiation as well as an evaluation circuit connected to the receiving element. Described is also a method for detecting properties of a piece of textile, for example in a washing machine or in a tumble dryer.
- US Pat. No. 5,396,715 describes a microwave clothes dryer and fire protection method in which the temperature inside the drum is detected by means of an IR sensor and, upon reaching a predetermined value indicative of the burning of laundry, stops the operation of the dryer becomes.
- the invention thus relates to a method for operating a water-conducting domestic appliance having a drum for receiving objects to be treated, which has at least one perimeter with at least one radiation passage, a control device, a spectrometer which comprises at least one radiation source, at least one radiation detector and a microcomputer in which microcomputers and control devices are set up for exchanging information with one another so that data can be exchanged between spectrometer and control device, wherein it comprises the following steps:
- the process of the invention offers a number of advantages.
- inexpensive, spectrally broadband bulbs such as incandescent filaments
- amplitude modulation i.
- the periodic interruption of the illuminating light beam and the subsequent phase-sensitive signal rectification the unfavorable signal-to-noise ratio, which is generally obtained in conventional bulbs, significantly reduce, whereby the sensitivity of the measurements is significantly increased and detect even the smallest amounts of substances in the trace range to let.
- the possible efficient noise suppression in particular more expensive narrowband light sources required in the infrared range, such as switchable phosphorised LEDs, can be dispensed with.
- the rotating drum with its generally defined radiation passages can be used as a simple mechanical instrument for "chopping,” ie, periodically interrupting, the emitted radiation, a so-called “chopper wheel” commonly used therefor, which is mechanically vulnerable. can be dispensed with, thus further reducing the cost and also increasing the reliability and accuracy of the spectroscopic measurements.
- Radiation transmission and “radiation-transmissive” used herein are to be interpreted broadly.
- Radiation-transmissive in the sense of the invention may mean the transmission of radiation in the entire spectral wavelength range or may also refer to, for example, one or more defined wavelength ranges of the spectrum, such as infrared or UV radiation.
- the configuration of the at least one radiation passage is not restricted according to the invention. This may be a material recess in the drum, ie a hole or even, for example, an inlay of a radiation-transmissive, ie transparent material, for example of quartz glass or a plastic.
- the radiation passage is arranged according to the invention on the front side, back or lateral surface of the drum.
- the shape of the radiation passage is not restricted according to the invention. It may be, for example, a circular hole or an elliptical or rectangular recess.
- the size of the radiation passage is essentially limited only by the size that is meaningful or permissible for a corresponding operation.
- the at least one radiation passage serves to allow the radiation of a radiation source to enter the interior of the drum.
- the drum rotates during the implementation of the method, wherein depending on the height of the rotational speed Dz of the drum, the at least one radiation passage at a certain frequency f passes through a position which allows radiation entry into the interior of the drum in step (b) of the method according to the invention , The same applies to the reversing of the drum. This position is referred to below as the corresponding position.
- the frequency f correspondingly results from the product of the rotational speed Dz with the number of radiation passages.
- step (b) of the method according to the invention it is provided that radiation is emitted continuously from the at least one radiation source in a wavelength range from ⁇ - 1 to ⁇ 2 .
- the term "continuous" means that the at least one radiation source of the spectrometer emits radiation without interruption during the performance of the method according to the invention, in this way it is achieved that during the rotation of the drum at the frequency f radiation into the interior of the drum is irradiated when the at least one radiation passage is in the corresponding position. It is according to the invention is not limited whether further in step (b) is emitting the radiation in the entire wavelength range of ⁇ - ⁇ to ⁇ 2 and / or at several different wavelengths and / or sub-ranges within this wavelength range.
- the radiation source generates a radiation in the interior of the drum which is interrupted periodically at the frequency f and impinges objects located therein with this radiation in at least one time period ⁇ t.
- the length of the period ⁇ t is not limited in the method according to the invention, depending on various parameters.
- the length of the period At depends on the rotational speed of the drum. If the drum rotates at a speed Dz such that the at least one radiation passage with a frequency f passes through the position which allows the radiation to enter the drum in step (b) of the method according to the invention, the length of the time period ⁇ t depends on this frequency f , The length of At decreases with increasing speed Dz, ie higher frequency f.
- the length of the period At will increase with an increasing size of the at least one radiation passage. If the dimensions of the radiation passage are increased at a constant speed Dz, At will increase because the objects inside the drum ("drum interior") are exposed to radiation for a longer period of time,
- the length of the at least one period ⁇ t is in the range of 1 ms to 100 ms
- the time interval At is in a range of 1 ms to 10 ms.
- a reference signal is generated at the same frequency and sent to the microcomputer.
- the reference signal is a periodic function with the period length 1 / f, with a sine, cosine or rectangular function being preferred.
- the reference signal is a Only the household appliance dependent periodic function with the period length 1 / f.
- the reference signal is essentially determined by the number of radiation passages, their geometry, ie their size and shape, and the rotational speed of the drum.
- the radiation detector registers the radiation reflected by objects in the drum in a continuous, continuous period of time.
- the reflected radiation from the objects directly and directly strikes the radiation detector without again passing through the radiation passage through which the periodically structured radiation was originally generated.
- two different radiation paths are generally to be distinguished.
- the radiation path which leads from the radiation source through the radiation passage in the drum wall into the interior of the drum to irradiate the objects located inside the drum, and the radiation path of the reflected radiation, which directs its way from the reflecting objects takes to the radiation detector.
- measuring means applying Radiation from the at least one radiation source of the spectrometer and the registration of the measurement signal by the at least one radiation detector.
- Items before a treatment include items that have not yet been treated in the water-bearing household appliance.
- Articles to be treated are thus articles which have one or more types of soiling or require a refreshment.
- items to be treated will be at least partially dry items.
- liquid contamination as a result of the spillage of beverages may also be a residual moisture present.
- Items during and / or after a treatment include all items that have undergone and / or have undergone at least one treatment in the household appliance.
- the concept of treatment should be understood in a broad sense.
- a treatment is carried out in a controlled manner by the control device, the moistening with a defined amount of water W F and the partial or complete execution of a treatment program being included therein.
- the type of objects is not limited.
- the items are laundry items.
- treatment programs are part of operating programs that can be carried out in a water-conducting domestic appliance.
- a treatment program may be a factory implemented water treatment appliance program, one or more additional options, or a custom treatment program.
- the term of the treatment program is to be interpreted broadly.
- different numbers of treatment programs can be stored in the control device. In particular, a high quality home appliance will have a greater number of treatment programs than a cheap one.
- control device and / or in an external server data for a wavelength-dependent reflection behavior of at least one type of textile advantageously of several types of textiles, which are stored in the drum objects, so that they are for measuring in Step b) and the evaluation and comparison in step c) of the method according to the invention can be utilized.
- Possible textile types are in particular polyester, linen, silk, cotton, acrylic or blended fabrics.
- the method according to the invention it is also possible with the method according to the invention to identify and allocate individual laundry parts present in the drum on the basis of the or the utilized measurement signal (s).
- the individual wavelengths and / or partial regions within the wavelength range from ⁇ - 1 to ⁇ 2 contain at least one wavelength in which no reflection of radiation takes place.
- the plurality of individual wavelengths and / or partial regions within the wavelength range from ⁇ - 1 to ⁇ 2 contain at least five wavelengths or wavelength ranges.
- the inventive method has the significant advantage that the radiation incidence on the passages in the rotating drum is generally an amplitude modulation of the incident on the objects in the drum radiation is effected.
- This amplitude modulation which is present in a functional form as a reference signal, is used to match the measurement signal with the reference signal with the aid of an evaluation routine executed in a microcomputer.
- the signal quality of the measurement signal can be significantly improved and eliminated from disturbing influences such as ambient light or scattered radiation. In this way, an improvement in the signal-to-noise ratio can generally be achieved by a factor of about 2 to 100.
- the microcomputer is designed as a lock-in amplifier or contains such.
- a lock-in amplifier which acts as a phase-sensitive rectifier, can be achieved in a particularly efficient and optimized way a comparison of the measurement signal with the reference signal and a filtering of disturbing noise effects.
- a lock-in amplifier contains the following elements: a signal input for the amplitude-modulated measurement signal, a signal input for the reference signal, a phase shifter for the adaptation between the measurement signal and reference signal, a mixer which multiplies the measurement signal with the reference signal, and a low-pass filter, to perform a time averaging over several signal periods.
- a cross-correlation between the measurement signal and the reference signal for a fixed phase shift is calculated by multiplying the measurement signal by the reference signal and subsequent integration in the low-pass filter.
- the cross-correlation for signals of different frequencies is zero. If the frequency of the measurement signal differs from that of the reference signal, the lock-in amplifier does not provide an output signal. Only for the same frequencies does the cross-correlation provide a value not equal to zero and thus a contribution in the output signal of the lock-in amplifier.
- the frequency of the reference signal results from the rotational speed of the drum and the number of radiation passages on the drum wall.
- the higher the selected frequency the better the noise reduction achieved for the measured signal.
- the maximum frequency to be used is suitable, taking into account the mechanical load capacity of the drum and the energy expenditure to be performed.
- the control device and / or on an external server corresponding data on a wavelength-dependent reflection behavior of at least one textile type at least two moisture levels are present, so that these values for the measurement in step b) and the evaluation in step c) of the method according to the invention can be used.
- the water-bearing household appliance is a washer-dryer
- the drying process can be controlled quite precisely with respect to a desired residual moisture level.
- the wavelength range from ⁇ - 1 to ⁇ 2 in this case comprises at least two absorption bands of a treatment agent. In this way, a more accurate determination of the content of treatment agent is made possible.
- the term "treating agent" is to be interpreted broadly, and in particular includes any solid and / or liquid preparation which is suitable for effecting a treatment result on objects to be treated in a household appliance carrying water
- the proportion of surfactants, especially of anionic surfactants, such as alkylbenzenesulfates, in such preparations is relatively high, generally more than 80% .This makes it possible to determine the amount of treatment agent via the surfactant concentration.
- the respective treatment agents differ in their respective spectra, in particular the absorption spectra, due to the intramolecular vibrations.
- the treatment agent used therefore produces a characteristic spectrum measured signals.
- the reflection and absorption properties for at least one or preferably a plurality of treatment agents are stored in the control device and / or on an external database in order to obtain these properties for the measurement in step (b) and the evaluation in step (c). to use.
- the wavelength range of ⁇ - ⁇ to ⁇ 2 preferably includes vibration bands that are in the range of 1 100 nm, 1400 nm, 1700 nm, 1900 nm, 2100 nm or in the region from 2300 to 2500 nm, more preferably two vibrational bands. This allows a reliable quantitative detection of these surfactants in particular.
- these so-called standard contaminants are contaminants which cover in their properties the entire range of possible contaminants on the objects to be treated.
- These include, in particular, fats or oils from food residues, natural colorants, for example from tomatoes, carrots, red cabbage, red wine, blood, grass, protein-containing impurities, such as egg yolks and the like.
- step (d) of the method according to the invention for this purpose, a self-cleaning program can be selected by the control device and suitably adapted to remove these impurities and to alert the user to his lack of hygiene.
- the volatile substances may be gases, such as propane gas, which is used in heat pump tumble dryers.
- the volatile substances may be gases, such as propane gas, which is used in heat pump tumble dryers.
- the announcement of this warning can be done visually via a display device, in word and / or picture and / or with the aid of light signals, as well as a warning tone.
- a corresponding security warning can also be communicated to the user via modern communication media as an app or an SMS, provided that the household appliance according to the invention is connected to a wireless network.
- security services such as the fire department can be notified.
- step (d) of the method according to the invention it is provided that the control device selects and / or adapts an operating program for the objects present in the drum in relation to the evaluated measuring signal on the basis of the measured signal evaluated and transmitted in step (c).
- the term "operating program” is to be understood in a broader sense. Operational programs include both treatment programs and programs implemented alongside treatment programs in the water-bearing home appliance. Thus, an operating program can also be a self-cleaning program.
- operating program include all operations to be performed by the control device in a household appliance according to the invention.
- the control device in this case the Adjust treatment program for the treatment of the colored garment to prevent unwanted staining on the pure white garments.
- a corresponding damage avoidance can be done by adjusting the speed and / or rotational rhythm and / or temperature.
- control unit may indicate to the user, before starting, the presence of colored laundry and to suggest a respective program for colored laundry.
- the user also has the option of removing the colored laundry item from the drum.
- the controller may also suggest the appropriate treatment program.
- step (c) the microcomputer optionally generates at least one spectrum from the spectral measuring signals with the additional involvement of the lock-in amplifier, the number of generated spectra not being restricted according to the invention.
- a calibration measurement is carried out with a rotating drum in a defined loading state.
- loading state is to be broadly understood in this context, in that it comprises not only a dry loading quantity but also a moisture content of the objects, in particular items of laundry.
- several recorded spectra can be compared with each other, for example, to track the change in concentration of a particular substance.
- spectralon is the preferred standard.
- a baseline is recorded and a corresponding baseline correction is made.
- a subtraction of the baseline from the measured values achieves a more accurate analysis, since contaminants present in particular in the area of the detector or emitter can be taken into account.
- a general function check of the spectrometer is carried out in this way. If the baseline survey results in severe contamination of the optics of the detector and / or emitter, an automatic cleaning program may be performed and then the baseline measurement restarted.
- the drum reverses briefly after each pass of the process it is particularly advantageous for a high loading quantity if the drum reverses briefly after each pass of the process. This rotation reversal causes an improved mixing of the laundry items in the drum and an optimization of the measurement results.
- the method is expediently repeated several times, in particular until a noticeable change in the measured values no longer occurs.
- laundry appliances may be provided in the drum as a water-conducting domestic appliance.
- evaluation routines that depend on the received measurement signals.
- the evaluation routines used are therefore subject to no restrictions according to the invention.
- the evaluation is preferably carried out to a good approximation on the basis of Lambert-Beer's law with the aid of a multivariant data analysis.
- a principal-component analysis with a non-linear-iterative partial least squares algorithm with subsequent partial least squares regression, from which a response matrix can be obtained is suitable for this purpose.
- control device is designed to store evaluated measurement signals.
- control device can gather empirical values with which the operation of the water-conducting domestic appliance can be constantly optimized. Individual requirements of the user can therefore be taken into account and environmentally sound operation of the household appliance can be implemented.
- the speed Dz of the drum in the method according to the invention is preferably from 20 to 200 rpm. In this speed range, a sufficiently high amplitude modulation of the radiation incident on radiation passages on the objects in the drum is given in order to achieve a significant improvement in the signal-to-noise ratio of the measured values obtained. In addition, you can These speeds are achieved with conventional engines and drive units without a disproportionate amount of energy. Furthermore, since the speed of the drum determines the length of time of a light packet entering through the radiation passage and the time between successive packets, the absorption behavior of the substances to be detected, in particular their residence times in the excited states, also plays an important role in the selection of a suitable speed.
- the method additionally comprises a step (e), namely the cleaning of the spectrometer.
- the type of cleaning of the optics of the spectrometer is not limited according to the invention. If the household appliance according to the invention is a washing machine or a washer-dryer, the cleaning can take place via the use of an aqueous liquid in a treatment program. In addition, it is possible to rinse the spectrometer optics separately via a line with rinsing liquid. Further, it is possible to provide on the outside of the drum at a selected location a sponge or a suitably suitable material, wherein when turning the drum, the spectrometer optics is cleaned by the Vorüberstich the sponge.
- a suitable mechanical device which is in communication with the door opening system, when opening the door of the household appliance according to the invention to actuate a cleaning unit, which pushes in front of the spectrometer and cleans its optics.
- a calibration device could be activated by the opening and closing of the door, which performs a calibration and / or a baseline correction of the spectrometer.
- the subject of the invention is a water-conducting household appliance with a drum for receiving objects to be treated, which has at least one perimeter with at least one radiation passage, a control device, a spectrometer, which comprises at least one radiation source, at least one radiation detector and a microcomputer, wherein microcomputer and control means are arranged for exchanging information with each other, so that data between spectrometer and control device
- the control device is set up to carry out a method comprising the following steps:
- the water-conducting domestic appliance according to the invention is generally selected from the group comprising a washing machine, a washer-dryer and a tumble dryer.
- the water-conducting household appliance is a washing machine or a washer-dryer.
- the water-conducting household appliance is a washing machine.
- the household appliance according to the invention has a treatment agent container and further preferably has a metering unit.
- the form and nature of the formation of the dosing unit is not restricted according to the invention. Especially it may be a dosing unit for the manual dosing of treatment agent or an automated dosing unit.
- the household appliance according to the invention has a treatment agent container and an automated metering unit for metering treatment agent, which is connected to the control device.
- the dosing unit is thus an automated dosing unit which is connected to the control device and can be controlled by the latter in order to dosed the treatment agent, such as in the case of dropping an optimal dosing amount.
- the automated dosing system may preferably be combined with a modular system for the treating agent to provide the optimum dose and composition of treating agent for the specific requirements of the type of soiling, grade, type of fabric and loading level.
- the drum of the household appliance according to the invention has a predetermined start / stop position.
- the way in which such a start / stop position of the drum is carried out in the water-conducting household appliance, according to the invention is not limited. Possible embodiments are, for example, a mechanical design or a storage of a selected drum position in the control device, which is activated prior to carrying out the method according to the invention.
- the arrangement of the spectrometer is limited according to the invention only to the extent that the emission of radiation in a wavelength range ⁇ - ⁇ to ⁇ 2 by the at least one radiation passage and the detection of the objects arranged in the drum reflected radiation is directly and freely possible without the radiation having to pass through the at least one radiation passage again in order to be interrupted.
- the arrangement may vary depending on the embodiment of the household appliance and in particular to the nature and structure of the water-bearing household appliance.
- the water-conducting domestic appliance is in a preferred embodiment, a washing machine or a washer-dryer with a tub and a drum for receiving laundry.
- the spectrometer is then preferably arranged in a recess of the tub container shell.
- the spectrometer is arranged to be pivotable and the orientation of the spectrometer in a manner controllable by the control device, so that in particular a plurality of, usually perpendicular to the perimeter spaced apart, perimeter of the drum with preferably in each case a plurality of radiation passages, in particular holes , can be recorded.
- holes are in particular those radiation passages which are characterized by the absence of a solid, radiation-permeable material.
- the at least one radiation passage is therefore a hole.
- the at least one radiation passage is formed of a glass or transparent plastic.
- the at least one radiation passage is a transparent plastic inlay or made of quartz glass. According to the size and shape of the transparent plastic inlay or quartz glass are not limited. In particular, this may be an elongated ellipse or an elongated rectangle, wherein the respective longer side preferably extends in the perimeter direction.
- the plastic inlay may be formed, for example, as a plastic ring.
- the plastic used for the inlay is preferably permeable to infrared radiation.
- the at least one radiation passage is generally arranged on the front side, rear side or lateral surface of the drum.
- the at least one radiation passage is not limited. It is particularly expedient if the at least one radiation passage of the water-conducting household appliance according to the invention has a circular shape.
- the diameter of the radiation passage, in particular of a hole, along the outside of the drum, in particular along the mantle surface of the drum, is preferably 10 to 20 mm, the diameter of the hole preferably tapering towards the interior of the drum.
- Too large a diameter of the radiation passage in an arrangement on the drum shell are to be avoided, since otherwise there is a risk that parts of laundry items during rotation of the drum by centrifugal forces from the passage openings, ie holes, pushed out and damaged.
- the passage openings are arranged on the front or rear side of the drum, larger openings are also possible without the risk of parts of the laundry being pushed out or being thrown out.
- the at least one radiation passage has an elliptical shape.
- the large semiaxis is ⁇ 10 mm long, in particular 2 to 5 mm, and the small semiaxis preferably has a length ⁇ 2 mm.
- the drum may further comprise a plurality of holes.
- the at least one perimeter is designed as a perforated ring.
- the drum preferably has a plurality of such perforated rings.
- the at least one perforated ring may be provided on the drum shell and on the front and / or the back of the drum.
- the axis of symmetry lies in the axis of rotation of the drum. It is expedient if the recess has an axially symmetrical shape, for example, a drop or thorn shape having. This bulge may have a more or less large recess in its interior.
- the at least one radiation passage is formed as an axially symmetric transparent protrusion projecting from the rear side of the drum into the interior of the drum, the axis of symmetry of the protrusion lying on the axis of rotation of the drum, and the back of the protrusion facing away from the interior of the drum has a non-transparent layer having in a concentric arrangement to the axis of rotation of the drum at least one radiation passage, in particular an opening, to allow a radiation incident through the radiation passage and the opening and the transparent bulge into the interior of the drum.
- the "chopping" of the light beam emitted by the radiation source is produced here by the periodic incidence of radiation when this beam alternately strikes the radiopaque or reflecting layer and the at least one light-permeable opening at the base of the recess formed, which is substantially parallel to the axis of rotation of the drum and is directed to a point of the concentric path of the at least one opening.
- the bulge can thus be formed entirely from the transparent material, so that the radiation entering through the opening propagates in the recess or the bulge and a diffuse radiation incidence is brought into the interior of the drum. In this way, a uniform loading of the objects in the drum with the radiation is achieved.
- the radiation passages or openings can be followed by radiation guide channels, for example glass fibers, which guide the radiation only within these radiation channels to a defined point on the surface of the recess, preferably at its tip, so that radiation entry into the latter only occurs from there Drum inside done.
- the arrangement of the at least one radiation source and of the at least one radiation detector relative to one another is generally chosen such that the reflected radiation can be detected directly. It is expedient if the detector is arranged above the radiation source. Furthermore, an arrangement of radiation source and detector is preferred, which is as far down as possible, but above the maximum water level. It is essential that the detector has a free field of view on the point illuminated by the radiation source.
- the focus or acceptance angle of the detector on the area to be examined is preferably adjusted and optimized by means of mirror and / or lens devices.
- the light emitted by the radiation source is also preferably focused by means of optical aids through the radiation inlet in order to illuminate a certain area in the interior of the drum in a stroboscopic manner.
- the radiation source is not restricted.
- radiation sources for the infrared (IR), ultraviolet (UV), or UV-VIS (ultraviolet and visible) range can be used.
- the at least one radiation source may be a broadband source, in particular an incandescent filament preferably made of tungsten, a tunable radiation source or a narrowband radiation source, such as an IR LED.
- broadband radiation sources are advantageous, since the amplitude modulation modulated in the method according to the invention effectively suppresses noise effects and a good signal-to-noise ratio is achieved, so that expensive narrowband sources are not necessary.
- the radiation source can have optical aids, in particular focusing optics, filter plates, filter foils or lacquers and a MOEMS Fabry-Perot frequency filter, which permit adjustment of the wavelength range.
- a plurality of differently designed radiation sources can be provided on the spectrometer.
- the at least one radiation source is a broadband source for emitting radiation in the infrared range.
- the radiation source is particularly preferably used for emitting radiation in the near-infrared region and is selected from the group comprising a tungsten-halogen lamp and a MOEMS black body radiator.
- the at least one radiation detector is not restricted.
- the radiation detector may, for example, be a broadband detector with at least one sensitive detector surface N.
- the radiation detector may have a plurality of sensitive surfaces N or a linear arrangement on detector surfaces N, for example in the form of pixels.
- the detector may include optical aids such as a MOEMS Fabry-Perot frequency filter, narrow band filters or a dispersive wedge.
- the material forming the radiation detector is likewise not restricted according to the invention.
- the radiation detector consists of at least one semiconductive material.
- the radiation source may be a tungsten halogen lamp with 5 filter plates for narrow-band excitation.
- the radiation detector 5 has sensitive detector surfaces to detect the reflected radiation.
- the radiation source in an IR spectrometer may include narrow band IR LEDs, with preferably 5 such LEDs being provided with multiplexing.
- the radiation detector N has sensitive detector surfaces and consists at least partially of indium gallium arsenide.
- a MOEMS black body radiator is also suitable as a radiation source for the spectrometer.
- the radiation detector consists of a sensitive detector surface N and has a MOEMS Fabry-Perot frequency filter. In this way, a narrow band frequency sweep can be performed through the wide band.
- the radiation source may be a DFB laser and the radiation detector may have a sensitive detector area N.
- the sensitive detector surface preferably consists at least partially of germanium, so that, as a result, it is also possible to measure time-dependent.
- the water-conducting household appliance preferably additionally has an interface for wireless data transmission, wherein the control device and the microcomputer are set up for wireless exchange of information with each other.
- the microcomputer may preferably be an external server or implemented on it.
- the water-conducting household appliance is thus suitable for operation in a network and can be operated using an external operating unit, such as a mobile device and / or a tablet PC conveniently via an app.
- the water-conducting household appliance is particularly preferably integrated into a home network with at least one further household appliance.
- information for controlling operating programs can advantageously be transferred from one household appliance to another. If the water-bearing household appliance is a washing machine, a determined residual moisture content of the washed items of laundry can be transferred to a dryer in the home network and the drying program to be followed can be adapted to the residual moisture.
- Domestic appliances usually have at least one display device that can be configured to output information as text, image and / or characters, colored and / or black and white, static and / or animated. About the display device warnings and / or other information can be communicated to a user.
- the display device is an external display device, such as the touchscreen of a smartphone or a tablet PC.
- the invention has numerous advantages. So far, it has not been possible to measure objects in the drum of a water-conducting household appliance during drum rotation at a short distance with a spectrometer using amplitude modulation. This allows the spectroscopic detection of substances which are present only in tracks, since due to the improved signal-to-noise ratio and small measurement signals can be registered. Thereby, the use of this can be usually customary separate fault-prone chopper wheel accounts since its function is fulfilled by the rotating drum. Furthermore, the invention allows a direct determination with only a small "sample to detector" distance.
- the current treatment program can thus be controlled individually and treatment can be saved by the amount of the treatment agent in the dosing phase is specifically adapted to the particular requirements and circumstances, ie about the degree of contamination of the laundry items and the load.
- the user tends to excessive dosage, so that with the invention, the treatment of objects in a water-bearing household appliance can be carried out environmentally friendly.
- the determination of textile types avoids damage to textiles in the event of incorrect loading by a user, for example, when accidentally washing both colored and clean-white items of laundry.
- the safety for a user is increased since volatile compounds, such as propane, which can be released when using a propane gas heat pump dryer can be detected by the method according to the invention.
- Health risks such as germs caused by allergens or other diseases, can be reduced by the determination of microbiologically relevant substances. Customized washing and drying programs are made possible by determining the nature and extent of the pollution present and the moisture content after the washing process.
- FIGS. 1 and 2 are views of non-limiting embodiments.
- FIG. 1 shows a non-limiting embodiment of a water-conducting domestic appliance suitable for carrying out the method according to the invention in the form of a washing machine, in which the spectrometer is positioned in the tub casing inside a recess.
- FIG. 2 shows in one embodiment a schematic representation of the measuring principle on which the method according to the invention is based.
- FIG. 1 shows a water-conducting domestic appliance 1 designed as a washing machine and suitable for carrying out the method according to the invention.
- the washing machine 1 a housing 12 in which a tub 2 is arranged, wherein therein a drum 3 for receiving laundry 22 is rotatably mounted about an axis perpendicular to the plane axis.
- a horizontal dashed line the highest achievable in the tub water level 25 is shown schematically.
- a tub outlet line 17 is connected, which leads to a suction side of a pump 14 via a Flusenabscheider 19.
- a drain line 13 is connected to a pressure side of the pump 14.
- the pump 14 is drivingly connected to a speed-controlled drive motor 20, which may be configured for example as a permanent-magnet, multi-strand synchronous motor with MOSFET device and a power detector 15.
- a speed-controlled drive motor 20 which may be configured for example as a permanent-magnet, multi-strand synchronous motor with MOSFET device and a power detector 15.
- the mouth of the drain line 13 outside the housing in a domestic drainage or a floor drainage.
- an automated dosing unit 8 for treatment agent is shown in Figure 1, which is connected to a dispenser 1 1.
- a fresh water line 10 can be supplied to the tub 2 via the dispenser 1 1 water.
- a check valve 9 is provided in the fresh water line 10, which is controlled by a control device 18 according to a treatment program sequence.
- An IR spectrometer 21 is arranged in a recess 4, which is located in the jacket of the tub 2.
- a broadband radiation source 5 is included in the IR spectrometer 21, which is capable of emitting near IR infrared radiation and which, in this non-limiting embodiment, is implemented as a tungsten halogen lamp. From the IR spectrometer 21 can be emitted in this way radiation in a continuous spectrum with a wavelength of 300 nm to 3 ⁇ . In this embodiment, the absorption bands of polyester are to be excited broadband using the broadband IR source.
- polyester has characteristic absorption bands at the wavelengths 1 180 nm, 1237 nm, 1266 nm, 1285 nm, 1322 nm, 1387 nm, 1410 nm, 1483 nm, 1514 nm, 1594 nm, 1661 nm, 1908 nm, 1953 nm, 2083 nm and 2136 nm.
- further textile types also show corresponding typical absorption bands, which can also be excited in broadband.
- the absorption bands of sulfone groups are also in this range.
- the surfactant class of LAS linear alkylbenzenesulfonates
- the measuring range of ⁇ -1 to ⁇ 2 ranges from 0.90 ⁇ to 1, 70 ⁇ .
- the type and / or amount of treatment agent can thus also be determined in further embodiments.
- the IR spectrometer 21 in front of the drum 3 has a radiation detector 7, which in this non-limiting embodiment is an indefinite indium gallium arsenide single-pixel non-cooled detector.
- a matrix detector in particular a matrix sensor with a linear line array, can also be used.
- An MOEMS Fabry-Perot frequency filter (not shown) is connected upstream of the radiation detector 7. The time-dependent broadband spectrum can be obtained in this way in this embodiment via a variation of the distance of the resonator plates.
- the drum 3 has a hole ring 35.
- the holes of the perforated ring 35 are arranged in a circle with a diameter of 2 mm on the drum outer wall 29.
- the IR spectrometer 21 is arranged in such a manner that IR radiation continuously emitted from the IR radiation source 5 through each hole of the hole ring 35 enters the inside of the drum 3 to to occupy the laundry 22 in the drum 3 with the emitted radiation.
- the radiation detector 7 is arranged in front of the drum 3 in the embodiment shown and has a free field of view on the area illuminated by the IR radiation source 5.
- the radiation detector 7 can directly and immediately register the radiation reflected by this point as a measuring signal over a continuous period of time, without interrupting the radiation path through other objects, in particular the drum wall 29.
- the rotational speed of the drum 3 is 60 rpm with a direction of rotation indicated by the arrow 23.
- the time length At of a packet of emitted radiation which penetrates through the radiation passage 30 into the interior of the drum 3 is 1 ms in this embodiment.
- the microcomputer 6 receives the measurement signals registered by the radiation detector 7 as a sensor signal (reflection) as a function of time and the periodic reference signal defined by the rotational speed of the drum 3.
- the sensor signal is compared with the reference signal by multiplication and subsequent integration and converted into the broadband spectrum with an evaluation routine stored in the microcomputer 6 and evaluated.
- Spectrometer 21 and microcomputer 6 form a functional unit.
- 16 means a display device; 24 means a Wäschemit vide.
- FIG. 2 shows a schematic representation of the measuring principle on which the method according to the invention is based.
- the measuring principle is based on a reflection measurement.
- a arranged in the drum 3 of a water-conducting household appliance textile part 34 is covered with a radiation source S 27 with radiation.
- the application of radiation 31 takes place through a hole in the drum outer wall 29 as a radiation passage 30 with a diameter D L , wherein the direction of rotation of the drum 3 is indicated by the arrow 33. It is advantageous to pass through the hole 30 as possible through its center.
- the diffuse back-reflected radiation 32 is detected by the radiation detector D 28.
- the period At of an irradiated light packet is D L / U * Dz, where U denotes the circumference of the drum 3.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016222095.0A DE102016222095A1 (de) | 2016-11-10 | 2016-11-10 | Verfahren zur verbesserten Steuerung eines wasserführenden Haushaltsgerätes und hierzu geeignetes Haushaltsgerät |
| PCT/EP2017/077079 WO2018086864A1 (de) | 2016-11-10 | 2017-10-24 | Verfahren zur verbesserten steuerung eines wasserführenden haushaltsgerätes und hierzu geeignetes haushaltsgerät |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3538705A1 true EP3538705A1 (de) | 2019-09-18 |
| EP3538705B1 EP3538705B1 (de) | 2022-07-06 |
Family
ID=60262903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17794280.2A Active EP3538705B1 (de) | 2016-11-10 | 2017-10-24 | Verfahren zur verbesserten steuerung eines wasserführenden haushaltsgerätes und hierzu geeignetes haushaltsgerät |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3538705B1 (de) |
| CN (1) | CN109983170B (de) |
| DE (1) | DE102016222095A1 (de) |
| WO (1) | WO2018086864A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020160745A1 (de) * | 2019-02-04 | 2020-08-13 | BSH Hausgeräte GmbH | Wasserführendes haushaltsgerät, verfahren zum betreiben eines wasserführenden haushaltsgeräts und computerprogrammprodukt |
| DE102021126051B3 (de) * | 2021-10-07 | 2023-03-23 | Emz-Hanauer Gmbh & Co. Kgaa | Vorrichtung, Haushaltsgerät und Verfahren zur Erkennung von Stoffgruppen in einem Fluid innerhalb eines Haushaltsgerätes sowie Verfahren zur Anpassung eines Reinigungsprozesses eines wasserführenden Haushaltsgerätes |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3812089A1 (de) * | 1988-04-12 | 1989-10-26 | Licentia Gmbh | Programmgesteuerte waeschebehandlungsmaschine, insbesondere trommelwaeschetrockner |
| JPH06126099A (ja) * | 1992-10-19 | 1994-05-10 | Sharp Corp | 衣類乾燥機 |
| US5396715A (en) | 1994-06-09 | 1995-03-14 | Electric Power Research Institute | Microwave clothes dryer and method with fire protection |
| US5651192A (en) | 1996-07-01 | 1997-07-29 | White Consolidated Industries, Inc. | Infrared temperature sensing for tumble drying control |
| DE19855503B4 (de) * | 1998-12-01 | 2006-12-28 | BSH Bosch und Siemens Hausgeräte GmbH | Wäschebehandlungsmaschine |
| DE19961459A1 (de) | 1999-12-20 | 2001-07-12 | Bsh Bosch Siemens Hausgeraete | Gerät zur Behandlung von Textilien mit einer Auswerteschaltung zur Erkennung der Textilart und/oder der Feuchte eines Wäschestücks |
| JP3739377B2 (ja) * | 2003-12-10 | 2006-01-25 | シャープ株式会社 | 洗濯乾燥機 |
| DE10358647B4 (de) * | 2003-12-15 | 2005-10-13 | Elektromanufaktur Zangenstein Hanauer Gmbh & Co. Kgaa | Sensor zur Transmissionsmessung |
| EP2182105B1 (de) * | 2008-11-04 | 2014-05-07 | Electrolux Home Products Corporation N.V. | Trübungsmesser |
| JP2010223871A (ja) * | 2009-03-25 | 2010-10-07 | Sharp Corp | 汚染検知装置、汚染浄化システム、および、洗濯機 |
| DE102010030441B4 (de) * | 2010-06-23 | 2021-01-28 | BSH Hausgeräte GmbH | Verfahren zur Bestimmung von wäschespezifischen Eigenschaften in einem Wäschebehandlungsgerät und hierfür geeignetes Wäschebehandlungsgerät |
| DE102010039611A1 (de) | 2010-08-20 | 2012-02-23 | BSH Bosch und Siemens Hausgeräte GmbH | Geschirrspülmaschine mit einem manuell anpassbaren Spülprogramm |
| DE102012017323A1 (de) | 2011-09-23 | 2013-03-28 | BSH Bosch und Siemens Hausgeräte GmbH | Wasserführendes Haushaltsgerät mit einer Dosiereinrichtung und einer Anzeigeeinrichtung |
| CN102720034B (zh) * | 2012-06-26 | 2014-01-29 | 无锡小天鹅股份有限公司 | 一种用于洗衣机的识别衣物污渍种类的方法 |
| DE102015100395B4 (de) | 2014-02-03 | 2020-06-18 | Bürkert Werke GmbH | Spektrometer und Fluid-Analysesystem |
-
2016
- 2016-11-10 DE DE102016222095.0A patent/DE102016222095A1/de not_active Withdrawn
-
2017
- 2017-10-24 WO PCT/EP2017/077079 patent/WO2018086864A1/de not_active Ceased
- 2017-10-24 CN CN201780069297.9A patent/CN109983170B/zh active Active
- 2017-10-24 EP EP17794280.2A patent/EP3538705B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109983170B (zh) | 2021-05-04 |
| WO2018086864A1 (de) | 2018-05-17 |
| CN109983170A (zh) | 2019-07-05 |
| EP3538705B1 (de) | 2022-07-06 |
| DE102016222095A1 (de) | 2018-05-17 |
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