EP2434936B1 - Dishwasher - Google Patents

Dishwasher Download PDF

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Publication number
EP2434936B1
EP2434936B1 EP10717130.8A EP10717130A EP2434936B1 EP 2434936 B1 EP2434936 B1 EP 2434936B1 EP 10717130 A EP10717130 A EP 10717130A EP 2434936 B1 EP2434936 B1 EP 2434936B1
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EP
European Patent Office
Prior art keywords
dishes
dishwasher according
detecting
sensor
evaluation module
Prior art date
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Active
Application number
EP10717130.8A
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German (de)
French (fr)
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EP2434936A2 (en
Inventor
Michael Fauth
Helmut Jerg
Kai Paintner
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BSH Hausgeraete GmbH
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BSH Hausgeraete GmbH
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Priority to PL10717130T priority Critical patent/PL2434936T3/en
Publication of EP2434936A2 publication Critical patent/EP2434936A2/en
Application granted granted Critical
Publication of EP2434936B1 publication Critical patent/EP2434936B1/en
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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00Washing or rinsing machines for crockery or tableware
    • A47L15/42Details
    • A47L15/4295Arrangements for detecting or measuring the condition of the crockery or tableware, e.g. nature or quantity
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00Washing or rinsing machines for crockery or tableware
    • A47L15/42Details
    • A47L15/46Devices for the automatic control of the different phases of cleaning ; Controlling devices
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2401/00Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/04Crockery or tableware details, e.g. material, quantity, condition
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/30Regulation of machine operational steps within the washing process, e.g. performing an additional rinsing phase, shortening or stopping of the drying phase, washing at decreased noise operation conditions

Definitions

  • the present invention relates to a dishwasher in the form of a domestic dishwasher with a washing container for receiving dishes during a wash program with a dish detection device for detecting the introduced into the washing crockery and with a control device for controlling the course of the wash program depending on the detected crockery.
  • Common household dishwashers include a variety of components, such as pumps, heaters, valves, water switches, and detergent dispensers, which, in conjunction, facilitate cleaning dishes introduced into the wash tub.
  • dishwashers have an electrical or an electronic control device which automatically controls the components of the dishwasher according to a previously designed washing program.
  • the design of the washing program has a decisive influence on the efficiency of the dishwasher, which results from a comparison of achieved cleaning and drying effect on the one hand and the required use of energy, water, cleaning agents and cleaning aids on the other.
  • Conventional control devices are designed so that the sequence of a washing program is fixed. This means that the wash program, after it has been started by an operator, always runs in the same way.
  • the dishwasher In order to take into account the fact that the dishwasher can be loaded differently in the practical use of a rinse cycle to rinse cycle, it has long been common to deposit in the control device various rinse programs. For example, a short program for only slightly soiled dishes, a normal program for normally soiled dishes and an intensive program for heavily soiled dishes may be provided. The selection of the appropriate program is left to the operator. However, once one of the available wash programs has been selected, the wash cycle is performed according to the pattern prescribed by the selected wash program.
  • Known dish detection devices can be divided into two groups.
  • a first group makes it possible to estimate the total amount of dishes introduced into the washing container.
  • sensors are used that can work according to different physical principles. For example, it is known to provide for detecting the total amount of dishes sensors for determining the weight of the dishes directly in or on the washing.
  • a second known group of dishwashing devices is provided for determining the type of dishes to be washed. For example, it has been proposed to detect the outlines of the dishes by means of a light barrier when loading the dishwasher, so as to distinguish, for example, plates from pots.
  • Object of the present invention is to increase the efficiency of a generic dishwasher.
  • the object is achieved in a dishwasher of the type mentioned above in that the dish detection device has a plurality of evaluation modules, which is designed in each case for detecting a similar type of crockery based on the signals of at least one sensor and / or based on at least one control parameter of the control device ,
  • An evaluation module here means a part of the dish detection device which is designed to evaluate the signals of at least one sensor, the evaluation allowing at least one qualitative statement as to whether a type of dish consisting of a specific material is present in the washing compartment. Preferably, such an evaluation module also allows a quantitative statement regarding the amount of the respective type of dish.
  • Each evaluation module directly evaluates the signals of one or more sensors according to a pre-determined algorithm, so as to accurately detect a type of dish.
  • the respective algorithm is designed to detect features of the signals of a sensor, which are specific to a particular type of dish.
  • the evaluation modules operate independently of each other, so that the evaluation of the signals with respect to a type of dish is independent of the evaluation of the signals with respect to another type of dish. By means of an evaluation module, therefore, the presence of a specific type of dish is detected immediately and not merely the ratio of the proportions of two different kinds of dishes is determined. As a result, a particularly accurate detection of the different types of dishes is possible.
  • the dish detection device and its evaluation modules are thus connected to the control device of the dishwashing machine in that the information determined by the evaluation modules can be used by the control device.
  • At least one control parameter of the control device for detecting a type of crockery consisting of a similar material may also be used by the dish detection device.
  • a control parameter may be, for example, an electric current drawn by the circulating pump as a function of a load acting on it.
  • an indication or identification measure for the particular type of dish present can be determined by at least one dish detection device directly and / or indirectly.
  • the dish detection device can be provided as a separate structural unit. Alternatively, it may be part or all of the control device.
  • the control device in particular an adjustment of the flow of a selected wash program to the material of the introduced into the washing utensils or dishes.
  • the dishes located in the washing container consist of a comparatively easy-to-clean material, for example, the rinsing pressure and / or the temperature of the rinsing water can be reduced during the execution of a rinsing program.
  • the required cleaning effect can be maintained. In this way, a significant improvement in the efficiency of the dishwasher can be achieved.
  • Another advantage of the dishwasher according to the invention is in particular that the energy required to dry the dishes is considerably reduced. This results from the fact that different materials show a different drying behavior.
  • the dishwasher according to the invention allows, in particular, an adaptation of the washing program to the resistance of the dishes respectively located in the dishware. For example, if temperature-sensitive materials are detected, the rinse water temperature can be automatically lowered. In this way, a gentle cleaning of the dishes is possible.
  • one of the evaluation modules is designed for detecting plastic utensils.
  • Plastic dishes generally have the property that crockery-typical contaminants adhere only relatively loosely. However, plastic crockery dries badly compared to other types of crockery. The detection of plastic dishes and a subsequent adjustment of the course of the wash program therefore allows a significant increase in the efficiency of the dishwasher.
  • one of the evaluation modules is designed for detecting metal utensils. Contaminations adhere to metal dishes comparatively strong. This is especially true for metalware which is heated when used as intended, such as pots and pans. The detection of metalware and a subsequent adjustment of the washing program ensures that even metalware is safely freed from impurities, the increased effort, however, is only operated when it is actually required. In this way, there is a significant increase in the efficiency of the dishwasher.
  • one of the evaluation modules is designed for detecting glassware.
  • Glassware is mainly only slightly dirty, with dirt adhering only relatively loose.
  • the detection of glassware and the subsequent adjustment of the flow of the wash program thus allows a further increase in efficiency of the dishwasher.
  • the washing program By adapting the washing program to a complete glassware loading of the washing container and damage to the relatively sensitive glassware can be avoided.
  • the washing out of ions from the glassware which is also known by the term "glass corrosion" can be avoided by adapting the rinsing parameters.
  • the dish detection device comprises a plurality of said evaluation modules, the result is a combinatorial effect which allows a particularly precise adaptation of the wash program to the loading of the wash tub.
  • the dish detection device is an evaluation module for detecting plastic dishes, an evaluation module for detecting metal dishes and an evaluation module for detecting Includes glassware, the occurring in the practical operation of a dishwasher mixing loads can be detected in terms of their main types of relevant dishes. This allows an optimal adaptation of the washing program to a large part of the loading compositions occurring in practical operation. The rinsing parameters can then be specifically adapted to the particular mixing loads present.
  • the drying section of the washing program can be adapted to it, although this would not actually be required for metal dishes and glassware.
  • the dish detection device comprises an evaluation module for (preferably quantitative) detection of the total amount of dishes in the washing container on the basis of the signals of at least one sensor.
  • an evaluation module for recording the total quantity enables a plausibility check of the control-room-specific evaluation modules; on the other hand, the amount of non-individually recorded types of dishes can be recorded by differentiating the total quantity and the quantities of individually recorded types of dishes. This allows a particularly good adaptation of the washing program to the actually existing loading composition and thus a particularly high increase in the efficiency of the dishwasher.
  • the dish detection device has at least one sound transducer for detecting a noise, which is caused by rinsing water sprayed on the dishes.
  • the sound transducer is preferably connected to at least one of the evaluation modules.
  • the respective evaluation module is for analyzing the noise in particular designed such that according to a predetermined noise evaluation algorithm, the respective type of dish or the entire dishes can be detected.
  • the jets of spray water impinging on the dishes during operation of the dishwasher produce noises whose properties depend, inter alia, on the material of which the dishes are made.
  • These noises are converted with a sound transducer into a signal, for example into an electrical signal, and fed to an evaluation module.
  • the evaluation module analyzes this signal for features which are characteristic of a specific material.
  • Such a trained dish detection device allows the detection of individual types of dishes with high accuracy, since different types of dishes lead to clearly identifiable noise patterns.
  • a rotating during the wash program spray arm is provided for spraying the dishes with rinse water, wherein the respectively connected to the transducer Ausncemodul is designed for analyzing the noise over at least one rotation of the spray arm. This ensures that the entire washing container is examined for the occurrence of a particular type of dish.
  • the evaluation module connected to the sound transducer is designed to analyze the sound over a large number of rotations of the spray arm. Accumulation of the signal over a plurality of rotations of the spray arm increases the accuracy of detection by improving the signal perturbation ratio. In particular, a negative influence of extraneous noise can be significantly reduced.
  • the respective evaluation module connected to the sound transducer is designed to analyze the frequencies contained in the noise. In comparison to evaluation modules, which analyze only the intensity of the sound, there is a much more precise selectivity with regard to the different types of dishes.
  • the evaluation module for detecting plastic crockery and / or the evaluation module for detecting Metal harness connected to the sound transducer.
  • Straight plastic dishes and metal utensils produce characteristic noises or noise.
  • the sound transducer is therefore particularly well suited for the detection of plastic dishes and / or metal dishes.
  • the sound transducer is arranged in the region of a lower crockery basket.
  • Conventional dishwashers have a lower and an upper dish rack.
  • plastic dishes such as mixing bowls made of plastic
  • metal dishes such as pots and pans, arranged mainly in the lower dish rack. Therefore, plastic dishes and metalware can be detected particularly well when the transducer is located in the area of this lower crockery basket.
  • the dish detection device has at least one light source for illuminating the dishes and at least one camera for imagewise detection of light reflections occurring on the dishes, wherein the respective camera is connected to at least one of the evaluation modules, wherein the respective evaluation module for analyzing the light reflections is designed such that, according to a given light evaluation algorithm, the respective type of crockery or the entire crockery can be detected.
  • the light source may include, for example, light-emitting diodes or bulbs.
  • the camera can be an electronic camera, for example a C-MOS camera. The camera can be equipped with a wide-angle lens to ensure the widest possible coverage.
  • the detection of a type of dish with such a dish detection device based on the fact that occur on the surfaces of different materials characteristic light reflections.
  • Light reflections also known as highlights or highlights, are locally limited reflections of light, which are much brighter than the background.
  • the light reflections generated by the respective light source and detected by the respective camera are analyzed by means of a suitable light evaluation algorithm, wherein a specific type of dishware or the total amount of dishes is detected on the basis of the properties of the light reflections.
  • the respectively associated with the camera evaluation module for determining the number and / or size of the light reflections arising on the dishes is formed.
  • Such an evaluation of the light reflexes can be carried out with a comparatively simple light evaluation algorithm.
  • the respective evaluation module connected to the camera is designed to determine the ratio of the brightness of the light reflections to the brightness of its immediate background. This ratio of brightness is characteristic of many materials, so that certain types of dishes can be distinguished with great certainty.
  • the respectively connected to the camera evaluation module for determining the brightness distribution is formed within the light reflections.
  • the alternative or additional determination of the brightness distribution within the light reflections further improves the distinction between different types of dishes.
  • the camera is connected to the evaluation module for detecting the glassware. Especially on surfaces made of glass especially high-contrast light reflections. This glassware can be detected very well by means of an evaluation of the images supplied by the camera.
  • the camera is arranged in the region of an upper dish rack of the dishwasher.
  • Glassware is mainly introduced into an upper dish rack of a dishwasher, so that a camera arranged in this way can easily detect the essential glass content of a dishwashing load.
  • the evaluation module for detecting the total amount of dishes with at least one sensor for detecting the connected to the dishes adhering amount of rinse water. This is based on the consideration that the total amount of dishes located in the washing container with the total amount of rinse water adhering to the dishes during a rinse corresponds.
  • the amount of adherent rinse water is substantially independent of the material of the harness and can be detected with relatively simple sensors.
  • the sensor for detecting the adhering to the dishes amount of rinse water is designed as a sensor for monitoring the rotational speed of a circulating pump.
  • a defined amount of water is introduced into the washing container at the beginning of a section of a washing program. This accumulates due to gravity in a lower portion of the washing, for example, in a designated collecting pot.
  • a circulation pump is provided, for example, which removes the rinse water from the collecting pot and sprays it via a spray into the washing.
  • the rinse water meets the dishes to be washed, with a portion of the rinse water adhering to the dishes and another part flows back into the collection pot.
  • the monitoring of the rotational speed of the circulation pump for example, by monitoring the electrical operating data of the pump, such as power consumption, with the aid of the control device, or by monitoring the noise of the circulation pump, in particular with the aid of at least one control parameter of the control device, take place.
  • the control device can be used by the control device as a measure of the speed of the circulating pump, the course of the electrical current absorbed by the circulation pump.
  • control device can thus be derived indirectly by means of the control device at least one criterion on the type or type of dishes to be washed.
  • By monitoring the speed of the circulation pump can also be prevented that the dishwasher is operated at a faulty water supply.
  • the corresponding sensor thus serves several purposes.
  • the senor for detecting the adhering to the dishes amount of rinse water is designed as a sensor for monitoring a level of accumulating in a lower portion of the rinse tank rinse water.
  • a sensor is simple in design, but provides sufficiently accurate measurement results.
  • the evaluation module for detecting the total amount of dishes is connected to a sensor for detecting the heating rate.
  • the heating rate indicates by which value the temperature of the rinsing water increases under the effect of a heating device of the dishwasher in a certain time. The heating rate is lower, the more dishes are in the washing.
  • the actual sensor can be a simple temperature sensor, which is required to control the temperature of the rinse water anyway. The heating rate can therefore be determined without major design changes to the dishwasher.
  • the evaluation module for detecting the total amount of dishes is connected to a sensor for detecting the weight of the dishes.
  • the sensor may be configured to detect the total weight of the rinse container or the total weight of the racks.
  • the sensor may comprise one or more so-called strain gauges. This results in a simple and relatively accurate detection of the total amount of dishes.
  • the dish detection device has a digital signal processor for evaluating a signal of one of the sensors.
  • Digital signal processors are particularly suitable for evaluating the signals of the sound transducer described above or the signals of the camera described above.
  • the evaluation modules respectively assigned to the sensors are then software modules which are executed by the digital signal processor.
  • Digital signal processors allow the execution of even complex evaluation algorithms in near real time.
  • the evaluation modules implemented with the aid of a digital signal processor can be easily implemented and subsequently adapted.
  • the dish detection device may include a plurality of digital signal processors due to However, today's performance is sufficient in many cases, a single digital signal processor.
  • At least one control parameter of the control device for detecting a type of dishware made of a similar material.
  • FIGS. 1 and 2 each provided with the same reference numerals.
  • FIG. 1 shows an advantageous embodiment of an inventively constructed dishwasher 1 in a schematic side view, with only the essential components for understanding the invention are shown and provided with reference numerals.
  • the dishwasher 1 which is designed as a household dishwasher 1, has a housing 2, in which a washing container 3 is arranged.
  • the rinsing container 3 can be closed by a door 4, so that a closed rinsing chamber is created for rinsing crockery.
  • the door 4 is shown in its closed position.
  • the door 4 can be brought into an open position by pivoting about an axis arranged perpendicular to the plane of the drawing, in which it is aligned substantially horizontally and allows the introduction or removal of dishes.
  • the dishwasher 1 has an upper dish rack 5 and a lower dish rack 6 for positioning dishes.
  • the upper crockery basket 5 is arranged on extension rails 7, which are each attached to a side wall of the washing container 3.
  • the crockery basket 5 is open door 4 by means of the extension rails. 7 from the washing container 3 extendable, which facilitates the loading and unloading of the upper dish rack 5.
  • the lower dish rack 6 is arranged in an analogous manner on extension rails 8.
  • the dishwasher 1 comprises a supply device 9 for fresh water FW, which is designed so that externally supplied fresh water FW controlled in the interior of the washing container 3 can pass.
  • the fresh water supplied FW collects due to its gravity as flushing water S in a collecting pot 10, which forms a lower part of the washing container 3.
  • the collecting pot 10 is in communication with a circulating pump 11, with the aid of which flushing water S can be pumped out of the collecting pot 10 via a heater 12 to a water distributor 13.
  • the water diverter 13 has two outlets, one of which is connected to an upper spray arm 14 and the other to a lower spray arm 15.
  • the water switch 13 is controlled so that the funded by the circulation pump 11 rinse water S is optionally promoted by one of the spray arms 14, 15 or by both spray arms 14, 15 in the washing 3, so as to flush the dishes located there.
  • a discharge device 16 is furthermore provided, which is designed for discharging rinsing water S as wastewater AW to the outside.
  • a metering device 17 is further provided.
  • the dishwasher 1 has a control device 18 arranged in the region of a control panel of the door 4, which control device is connected to the feed device 9, to the circulation pump 11, to the heater 12, to the water separator 13, to the discharge device 16 and to the metering device 17 ,
  • the control device 18 is designed for automatic sequence control of a wash program.
  • a typical washing program includes several successive sections.
  • a first section of a washing program is usually provided as a pre-wash cycle.
  • a certain amount of fresh water FW is passed through the feeding device 9 in the washing compartment 3.
  • the supplied fresh water FW is then by means of the circulation pump 11 as the rinse water S for a certain period in the washing container. 3 circulated.
  • the rinsing water S is in particular circulated at a relatively low temperature, for example 30 ° C. Of course, if necessary, a stronger heating of the rinse water in the pre-rinse process is possible.
  • An addition of cleaning agents can be omitted.
  • the rinse water S is discharged with the dirt at the end of the pre-rinse cycle via the discharge device 16 to the outside.
  • the pre-rinse cycle is followed by one or more cleaning cycles, in which the rinsing container is again filled with fresh water FW.
  • the fresh water FW is brought as a rinse water S to a higher temperature, for example to 50 ° C, and added with cleaning agents. After a circulation of the rinse water S for a certain period of time, the rinse water S is discharged again via the discharge device 16.
  • the rinse water S is mixed with a rinse aid and circulated.
  • the rinse cycle prepares a spot-free drying of the washed dishes.
  • the rinse water S is brought to a particularly high temperature, for example to 70 ° C, so that also heats the dishes.
  • the rinse water S is pumped out again.
  • the dishwasher 1 In order to optimize the sequence of the washing program with a view to a specific loading state of the washing container 3, the dishwasher 1 according to the invention has a dish detection device.
  • the adaptation of the sequence can relate to all parameters of the basic sequence outlined above.
  • the dish detection device comprises a central unit 19, which communicates with the control device 18 for information exchange.
  • the central unit 19 can be arranged in spatial proximity to the control device 18 or be integrated directly into it.
  • the dish detection device further comprises a plurality of sensors whose sensor signals are supplied to the central unit 19.
  • the dish detection device comprises a sound transducer 20, which is arranged in the region of the lower crockery basket 6 on the inside of the door 4.
  • the sound transducer 20 could also be arranged on a fixed wall of the washing container 3.
  • the sound transducer 20 is designed as a microphone 20 and detects noises, which arise from the fact that rinse water S is sprayed onto the dishes located in the washing container 3. Since the noise resulting from the impinging rinse water S depends substantially on the material mix of the dishes, an analysis of the signals generated by the sound transducer 20 allows detection of one or more types of dishes characterized by a respective common material.
  • a light source 21 is arranged, which consists of two light-emitting diode assemblies 21.
  • the LED banks 21 are arranged so that the dishes located in the washing container 3 is illuminated. This results in the dishes light reflections, which have different properties depending on the type of dish.
  • the sensor 23 is a level sensor 23, which detects the level of flushing water S in the collection pot 10. If the amount of flushing water supplied as fresh water FW is known, then the filling level in the collecting pot 10 is known a measure of how much water adheres to the dishes during the wash cycle. This adhering amount of rinse water S, in turn, is a measure of the total amount of dishes in the rinse tank 3.
  • the sensor 24 is designed as a temperature sensor 24, which detects the temperature of the rinse water S. It allows the determination of the heating rate, ie an increase in the temperature in a specific time unit, which is caused by the heater 12.
  • the heating rate is inversely proportional to the total amount of dishes.
  • the sensor 25 is designed as a speed sensor 25, wherein the speed sensor 25 detects the rotational speed of the circulation pump 11.
  • the determination of the total amount of dishes can now be such that first a certain amount of fresh water FW is introduced into the washing tank 3, this is circulated and now checked whether the level in the sump 10 drops so far that the circulation pump 11 sucks air, which makes itself felt in a speed increase. Then fresh water FW is supplied again in a certain amount and determines whether air is sucked again. This procedure is repeated until no more air is sucked in, so that the circulating pump runs around again. In this way, a determination of the adhering to the dishes amount of rinse water S is possible, which is a measure of the Spülgutmenge. If necessary, instead of the rotational speed sensor 25, it may also be sufficient if the control device 18 derives a measure of its rotational speed from the current consumption curve of the circulation pump, i. this determined indirectly. The separate speed sensor can thus be omitted.
  • the sensor 26 is designed as a weight sensor.
  • the weight sensor 26 includes strain gauges 26 a, which detect the weight of the upper crockery basket 5.
  • the sensor 26 comprises strain gauges 26b, which detect the weight of the lower crockery basket 6.
  • FIG. 2 shows a block diagram of the dish detection device 27.
  • the central unit 19 of the dish detection device 27 comprises an evaluation module 28 for detecting plastic dishes, an evaluation module 29 for detecting metal dishes, an evaluation module 30 for detecting glassware and an evaluation module 31 for detecting the total amount of the dishes.
  • the central unit 19 comprises a digital signal processor 32, on which the evaluation modules 28 to 31 are set up by appropriate software.
  • the evaluation modules 28 to 31 each execute an algorithm for evaluating sensor signals.
  • the evaluation modules 28 to 31 are preferably independent of each other insofar as the evaluation result of the one evaluation module does not depend on the result of another evaluation module. Sensor signals are always processed directly.
  • the evaluation module 28 is designed for detecting plastic harness for evaluating the signals of the sound transducer 20 described above.
  • the evaluation module 29 for detecting metal utensils is also designed for evaluating the signals of the sound transducer 20, but the detection of metalware is based on the detection of metalware typical noises and the detection of plastic dishes due to the detection of plastic dishes typical noise components.
  • the evaluation modules 28 and 29 are designed to analyze the amplitudes of different frequencies of the noise.
  • the evaluation module 30 for detecting glassware is designed to evaluate the images captured by the camera 22.
  • the corresponding images are transmitted as a signal from the camera 22 to the evaluation module 30.
  • the total amount of crockery evaluation module 31 is further configured to evaluate the signals from the level sensor 23, the temperature sensor 24, the speed sensor 25, and the weight sensor 26.
  • the evaluation results of the evaluation modules 28 to 31 are transmitted to the control device 18.
  • the control device 18 is thus enabled to control the flow of the washing program in dependence on the detected dishes.
  • the control device 18 to adapt the supplied fresh water quantity exactly to the respective load by means of corresponding control commands to the feed device 9.
  • the duration is also a circulation phase, for example in a pre-rinse, controllable.
  • the pressure of the rinse water during the circulation can be varied.
  • the rinse water temperature can be adapted to the specific requirements.
  • the distribution of the rinsing water S to the upper or lower spray arm can be varied.
  • Corresponding control commands to the discharge device 16 ensure that the pumping out of wastewater takes place after the completion of a circulation phase.
  • the control device 18 it is possible for the control device 18 to vary the supply of cleaning agents or cleaning aids as a function of the actual loading of the washing container 3 by corresponding control commands to the metering device 17.

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Description

Die vorliegende Erfindung betrifft eine Geschirrspülmaschine in Form einer Haushaltsgeschirrspülmaschine mit einem Spülbehälter zur Aufnahme von Geschirr während eines Spülprogramms mit einer Geschirrerfassungseinrichtung zur Erfassung des in den Spülbehälter eingebrachten Geschirrs und mit einer Steuereinrichtung zur Steuerung des Ablaufes des Spülprogramms in Abhängigkeit vom erfassten Geschirr.The present invention relates to a dishwasher in the form of a domestic dishwasher with a washing container for receiving dishes during a wash program with a dish detection device for detecting the introduced into the washing crockery and with a control device for controlling the course of the wash program depending on the detected crockery.

Gängige Haushaltsgeschirrspülmaschinen umfassen eine Vielzahl von Komponenten, wie beispielsweise Pumpen, Heizeinrichtungen, Ventile, Wasserweichen und Dosiereinrichtungen für Reinigungsmittel bzw. Reinigungshilfsmittel, welche im Zusammenwirken eine Reinigung von in den Spülbehälter eingebrachtem Geschirr ermöglichen. Um dieses Zusammenwirken sicherzustellen, weisen Geschirrspülmaschinen eine elektrische oder eine elektronische Steuereinrichtung auf, welche die Komponenten der Geschirrspülmaschine nach einem vorab konzipierten Spülprogramm automatisch steuert. Die Gestaltung des Spülprogramms hat dabei einen entscheidenden Einfluss auf die Effizienz der Geschirrspülmaschine, welche sich aus einer Gegenüberstellung von erzielter Reinigungs- und Trocknungswirkung einerseits und dem erforderlichen Einsatz von Energie, Wasser, Reinigungsmitteln und Reinigungshilfsmitteln andererseits ergibt.Common household dishwashers include a variety of components, such as pumps, heaters, valves, water switches, and detergent dispensers, which, in conjunction, facilitate cleaning dishes introduced into the wash tub. In order to ensure this interaction, dishwashers have an electrical or an electronic control device which automatically controls the components of the dishwasher according to a previously designed washing program. The design of the washing program has a decisive influence on the efficiency of the dishwasher, which results from a comparison of achieved cleaning and drying effect on the one hand and the required use of energy, water, cleaning agents and cleaning aids on the other.

Herkömmliche Steuereinrichtungen sind dabei so ausgebildet, dass der Ablauf eines Spülprogramms fest vorgegeben ist. Das bedeutet, dass das Spülprogramm, nachdem es durch einen Bediener gestartet wurde, immer in derselben Weise abläuft. Um nun dem Umstand Rechnung zu tragen, dass die Geschirrspülmaschine im praktischen Einsatz von Spülgang zu Spülgang unterschiedlich beladen sein kann, ist es seit langem üblich, in der Steuereinrichtung verschiedene Spülprogramme zu hinterlegen. So kann beispielsweise ein Kurzprogramm für nur leicht verschmutztes Geschirr, ein Normalprogramm für normal verschmutztes Geschirr und ein Intensivprogramm für stark verschmutztes Geschirr vorgesehen sein. Die Auswahl des geeigneten Programms bleibt dabei dem Bediener überlassen. Nachdem jedoch eines der zur Verfügung stehenden Spülprogramme ausgewählt ist, erfolgt die Durchführung des Spülganges nach dem durch das ausgewählte Spülprogramm vorgegebenen Schema.Conventional control devices are designed so that the sequence of a washing program is fixed. This means that the wash program, after it has been started by an operator, always runs in the same way. In order to take into account the fact that the dishwasher can be loaded differently in the practical use of a rinse cycle to rinse cycle, it has long been common to deposit in the control device various rinse programs. For example, a short program for only slightly soiled dishes, a normal program for normally soiled dishes and an intensive program for heavily soiled dishes may be provided. The selection of the appropriate program is left to the operator. However, once one of the available wash programs has been selected, the wash cycle is performed according to the pattern prescribed by the selected wash program.

Demgegenüber sind in jüngerer Zeit Vorschläge bekannt geworden, Geschirrspülmaschinen mit einer Geschirrerfassungseinrichtung zu versehen und die Steuereinrichtung so auszubilden, dass der Ablauf des gewählten Spülprogramms automatisch an das durch die Geschirrerfassungseinrichtung erfasste Geschirr angepasst wird. Das Dokument EP 0 943 287 A1 offenbart eine Geschirrspülmaschine mit wenigstens einem Sensor zur Beladungserkennung, wobei über die Beladungserkennung auch eine Aussage über die Art der eingebrachten Spülgutteile ermöglicht ist.In contrast, proposals have recently become known to provide dishwashers with a dish detection device and form the control device so that the sequence of the selected wash program is automatically adapted to the detected by the dish detection device dishes. The document EP 0 943 287 A1 discloses a dishwasher with at least one sensor for load detection, wherein on the load detection and a statement about the nature of the introduced Spülgutteile is possible.

Bekannte Geschirrerfassungseinrichtungen können in zwei Gruppen eingeteilt werden Eine erste Gruppe ermöglicht eine Abschätzung der Gesamtmenge des in den Spülbehälter eingebrachten Geschirrs. Hierzu werden Sensoren eingesetzt, die nach unterschiedlichen physikalischen Prinzipien arbeiten können. Beispielsweise ist es bekannt, zur Erfassung der Gesamtmenge von Geschirr Sensoren zur Ermittlung des Gewichtes des Geschirrs unmittelbar im oder am Spülbehälter vorzusehen.
Eine zweite bekannte Gruppe von Geschirrerfassungseinrichtungen ist zur Ermittlung der Art der zu spülenden Geschirrteile vorgesehen. So ist beispielsweise vorgeschlagen worden, mittels einer Lichtschranke beim Beladen der Geschirrspülmaschine die Umrisse der Geschirrteile zu erfassen, um so beispielsweise Teller von Töpfen zu unterscheiden.
Die Anpassung des Ablaufes eines Spülprogramms an die in den Spülbehälter eingebrachte Gesamtmenge von Geschirr und/oder an die Art der eingebrachten Geschirrteile ermöglicht im Vergleich zu älteren Geschirrspülmaschinen allenfalls eine graduelle Verbesserung der Effizienz der Geschirrspülmaschine. Gleichwohl liegt der Wasser- und Energieverbrauch sowie der Reinigungsmittel- und Reinigungshilfsmittelverbrauch, der zu einer wenigstens zufriedenstellenden Reinigung des Spülgutes erforderlich ist, weit über den heute geforderten Werten.
Aufgabe der vorliegenden Erfindung ist es, die Effizienz einer gattungsgemäßen Geschirrspülmaschine zu erhöhen.
Die Aufgabe wird bei einer Geschirrspülmaschine der eingangs genannten Art dadurch gelöst, dass die Geschirrerfassungseinrichtung eine Vielzahl von Auswertemodulen aufweist, welche jeweils zur Erfassung einer aus einem gleichartigen Material bestehenden Geschirrart anhand der Signale wenigstens eines Sensors und/oder anhand mindestens eines Steuerparameters der Steuereinrichtung ausgebildet ist.
Known dish detection devices can be divided into two groups. A first group makes it possible to estimate the total amount of dishes introduced into the washing container. For this purpose, sensors are used that can work according to different physical principles. For example, it is known to provide for detecting the total amount of dishes sensors for determining the weight of the dishes directly in or on the washing.
A second known group of dishwashing devices is provided for determining the type of dishes to be washed. For example, it has been proposed to detect the outlines of the dishes by means of a light barrier when loading the dishwasher, so as to distinguish, for example, plates from pots.
The adaptation of the course of a washing program to the total amount of dishes introduced into the washing container and / or the type of dishware introduced makes it possible at most to achieve a gradual improvement in the efficiency of the dishwasher in comparison with older dishwashers. Nevertheless, the water and energy consumption as well as the cleaning agent and cleaning agent consumption, which is required for at least satisfactory cleaning of the items to be cleaned, far exceeds the values required today.
Object of the present invention is to increase the efficiency of a generic dishwasher.
The object is achieved in a dishwasher of the type mentioned above in that the dish detection device has a plurality of evaluation modules, which is designed in each case for detecting a similar type of crockery based on the signals of at least one sensor and / or based on at least one control parameter of the control device ,

Unter einem Auswertemodul wird dabei ein Teil der Geschirrerfassungseinrichtung verstanden, der zur Auswertung der Signale wenigstens eines Sensors ausgebildet ist, wobei die Auswertung zumindest eine qualitative Aussage darüber erlaubt, ob eine aus einem bestimmten Material bestehende Geschirrart im Spülbehälter vorhanden ist. Bevorzugt erlaubt ein derartiges Auswertemodul auch eine quantitative Aussage bzgl. der Menge der jeweiligen Geschirrart. Jedes Auswertemodul wertet unmittelbar die Signale eines oder mehrerer Sensoren nach einem vorab festgelegten Algorithmus aus, um so genau eine Geschirrart zu erfassen. Der jeweilige Algorithmus ist dabei zur Erkennung von Merkmalen der Signale eines Sensors ausgebildet, welche spezifisch für eine bestimmte Geschirrart sind. Hierbei arbeiten die Auswertemodule unabhängig voneinander, so dass die Auswertung der Signale bezüglich einer Geschirrart unabhängig von der Auswertung der Signale bezüglich einer anderen Geschirrart erfolgt. Durch ein Auswertemodul wird also das Vorhandensein einer bestimmten Geschirrart unmittelbar detektiert und nicht etwa lediglich das Verhältnis der Anteile zweier verschiedener Geschirrarten bestimmt. Hierdurch ist eine besonders genaue Erfassung der verschiedenen Geschirrarten möglich.An evaluation module here means a part of the dish detection device which is designed to evaluate the signals of at least one sensor, the evaluation allowing at least one qualitative statement as to whether a type of dish consisting of a specific material is present in the washing compartment. Preferably, such an evaluation module also allows a quantitative statement regarding the amount of the respective type of dish. Each evaluation module directly evaluates the signals of one or more sensors according to a pre-determined algorithm, so as to accurately detect a type of dish. The respective algorithm is designed to detect features of the signals of a sensor, which are specific to a particular type of dish. In this case, the evaluation modules operate independently of each other, so that the evaluation of the signals with respect to a type of dish is independent of the evaluation of the signals with respect to another type of dish. By means of an evaluation module, therefore, the presence of a specific type of dish is detected immediately and not merely the ratio of the proportions of two different kinds of dishes is determined. As a result, a particularly accurate detection of the different types of dishes is possible.

Die Geschirrerfassungseinrichtung und deren Auswertemodule stehen so mit der Steuereinrichtung der Geschirrspülmäschine in Verbindung, dass die durch die Auswertemodule ermittelten Informationen durch die Steuereinrichtung verwendet werden können.The dish detection device and its evaluation modules are thus connected to the control device of the dishwashing machine in that the information determined by the evaluation modules can be used by the control device.

Zusätzlich oder unabhängig von den Signalen des jeweiligen Sensors kann ggf. auch mindestens ein Steuerparameter der Steuereinrichtung zur Erfassung einer aus einem gleichartigen Material bestehenden Geschirrart durch die Geschirrerfassungseinrichtung herangezogen werden. Ein solcher Steuerparameter kann beispielsweise ein durch die Umwälzpumpe gezogener elektrischer Strom in Abhängigkeit einer an ihr wirksam werdenden Last sein. Allgemein ausgedrückt kann also auf direktem Weg und/oder indirektem Weg ein Indiz oder Identifizierungsmaß für die jeweilig vorhandene Geschirrart durch mindestens eine Geschirrerfassungseinrichtung ermittelt werden.In addition or independent of the signals of the respective sensor, at least one control parameter of the control device for detecting a type of crockery consisting of a similar material may also be used by the dish detection device. Such a control parameter may be, for example, an electric current drawn by the circulating pump as a function of a load acting on it. In general terms, therefore, an indication or identification measure for the particular type of dish present can be determined by at least one dish detection device directly and / or indirectly.

Insbesondere kann die Geschirrerfassungseinrichtung als selbständige Baueinheit vorgesehen sein. Alternativ dazu kann sie teilweise oder ganz auch Bestandteil der Steuereinrichtung sein.In particular, the dish detection device can be provided as a separate structural unit. Alternatively, it may be part or all of the control device.

Bei der erfindungsgemäßen Geschirrspülmaschine kann durch die Steuereinrichtung insbesondere eine Anpassung des Ablaufs eines ausgewählten Spülprogramms an das Material des in den Spülbehälter eingebrachten Geschirrs bzw. Spülguts erfolgen. Auf diese Weise kann bei der Steuerung der Geschirrspülmaschine berücksichtigt werden, dass geschirrtypische Verschmutzungen an verschiedenen Materialien unterschiedlich hartnäckig anhaften. Wenn also das im Spülbehälter befindliche Geschirr aus einem vergleichsweise einfach zu reinigenden Material besteht, kann beispielsweise der Spüldruck und/oder die Temperatur des Spülwassers während der Durchführung eines Spülprogramms verringert werden. Ebenso ist es denkbar, die Laufzeit eines Spülprogramms zu verkürzen und/oder die Menge der zuzugebenen Reinigungs- und Reinigungshilfsmittel zu reduzieren. Gleichwohl kann die erforderliche Reinigungswirkung beibehalten werden. Auf diese Weise kann eine signifikante Verbesserung der Effizienz der Geschirrspülmaschine erreicht werden.In the dishwasher according to the invention can be carried out by the control device in particular an adjustment of the flow of a selected wash program to the material of the introduced into the washing utensils or dishes. In this way, it can be taken into account in the control of the dishwasher that crockery-typical soiling adheres to different materials with varying degrees of persistence. If, therefore, the dishes located in the washing container consist of a comparatively easy-to-clean material, for example, the rinsing pressure and / or the temperature of the rinsing water can be reduced during the execution of a rinsing program. It is also conceivable to shorten the running time of a washing program and / or to reduce the amount of cleaning and cleaning aids to be added. However, the required cleaning effect can be maintained. In this way, a significant improvement in the efficiency of the dishwasher can be achieved.

Ein weiterer Vorteil der erfindungsgemäßen Geschirrspülmaschine liegt insbesondere darin, dass der Energieaufwand zum Trocknen des Geschirrs erheblich reduzierbar ist. Dies ergibt sich daraus, dass verschiedene Materialien ein unterschiedliches Trocknungsverhalten zeigen. Durch die erfindungsgemäße Erfassung der im Spülbehälter befindlichen Materialien auf direktem Weg mittels mindestens eines Signals ein oder mehrerer Sensoren oder indirektem Weg mittels ein oder mehrerer in der Steuereinrichtung abgeleiteter Steuerparameter kann dabei sichergestellt werden, dass zum Trocknen des Geschirrs nur die Menge an Energie aufgewendet wird, die auch tatsächlich erforderlich ist.Another advantage of the dishwasher according to the invention is in particular that the energy required to dry the dishes is considerably reduced. This results from the fact that different materials show a different drying behavior. By the inventive detection of the materials located in the washing container by means of at least one signal one or more sensors or indirect way by means of one or more derived in the controller control parameters can be ensured that only the amount of energy is expended for drying the dishes, which is actually required.

Weiterhin erlaubt die erfindungsgemäße Geschirrspülmaschine insbesondere eine Anpassung des Spülprogramms an die Widerstandsfähigkeit des jeweils im Geschirrbehälter befindlichen Geschirrs. Werden beispielsweise temperaturempfindliche Materialien detektiert, so kann die Spülwassertemperatur automatisch abgesenkt werden. Auf diese Weise wird eine schonende Reinigung des Geschirrs ermöglicht.Furthermore, the dishwasher according to the invention allows, in particular, an adaptation of the washing program to the resistance of the dishes respectively located in the dishware. For example, if temperature-sensitive materials are detected, the rinse water temperature can be automatically lowered. In this way, a gentle cleaning of the dishes is possible.

Darüber hinaus ergibt sich ein weiterer Vorteil daraus, dass aus der Adaptivität des Spülprogramms die Anzahl der verschiedenen in der Steuereinrichtung hinterlegten Spülprogramme in vielen Fällen verringert werden kann. Auf diese Weise vereinfacht sich die Bedienung der Geschirrspülmaschine, was mit einer Verringerung der Gefahr einer Fehlbedienung einhergeht.In addition, a further advantage results from the fact that the number of different washing programs stored in the control device can in many cases be reduced from the adaptivity of the washing program. In this way, the operation of the dishwasher simplifies, which is accompanied by a reduction in the risk of incorrect operation.

Gemäß einem weiteren Aspekt der Erfindung ist eines der Auswertemodule zur Erfassung von Kunststoffgeschirr ausgebildet. Kunststoffgeschirr weist im Allgemeinen die Eigenschaft auf, dass geschirrtypische Verschmutzungen nur verhältnismäßig locker anhaften. Allerdings trocknet Kunststoffgeschirr im Vergleich zu anderen Geschirrarten schlecht ab. Die Erfassung von Kunststoffgeschirr und eine darauf basierende Anpassung des Ablaufes des Spülprogramms erlaubt daher eine wesentliche Steigerung der Effizienz der Geschirrspülmaschine.According to a further aspect of the invention, one of the evaluation modules is designed for detecting plastic utensils. Plastic dishes generally have the property that crockery-typical contaminants adhere only relatively loosely. However, plastic crockery dries badly compared to other types of crockery. The detection of plastic dishes and a subsequent adjustment of the course of the wash program therefore allows a significant increase in the efficiency of the dishwasher.

Gemäß einem zusätzlichen Aspekt der Erfindung ist eines der Auswertemodule zur Erfassung von Metallgeschirr ausgebildet. Verschmutzungen haften an Metallgeschirr vergleichsweise stark an. Dies gilt insbesondere für Metallgeschirr, welches bei bestimmungsgemäßem Gebrauch erhitzt wird, wie beispielsweise Töpfe und Pfannen. Die Erfassung von Metallgeschirr und eine darauf basierende Anpassung des Spülprogramms stellt sicher, dass auch Metallgeschirr sicher von Verunreinigungen befreit wird, wobei der hierzu erhöhte Aufwand allerdings nur dann betrieben wird, wenn er auch tatsächlich erforderlich ist. Auf diese Weise ergibt sich eine erhebliche Steigerung der Effizienz der Geschirrspülmaschine.According to an additional aspect of the invention, one of the evaluation modules is designed for detecting metal utensils. Contaminations adhere to metal dishes comparatively strong. This is especially true for metalware which is heated when used as intended, such as pots and pans. The detection of metalware and a subsequent adjustment of the washing program ensures that even metalware is safely freed from impurities, the increased effort, however, is only operated when it is actually required. In this way, there is a significant increase in the efficiency of the dishwasher.

Gemäß einem weiteren Aspekt der Erfindung ist eines der Auswertemodule zur Erfassung von Glasgeschirr ausgebildet. Glasgeschirr ist überwiegend nur leicht verschmutzt, wobei Schmutz nur vergleichsweise locker anhaftet. Die Erfassung von Glasgeschirr und die nachfolgende Anpassung des Ablaufes des Spülprogramms ermöglicht somit eine weitere Effizienzsteigerung der Geschirrspülmaschine. Durch eine Anpassung des Spülprogramms an eine Glasgeschirr umfassende Beladung des Spülbehälters kann auch eine Beschädigung des relativ empfindlichen Glasgeschirrs vermieden werden. Insbesondere kann durch eine Anpassung der Spülparameter das Auswaschen von Ionen aus dem Glasgeschirr, was auch unter der Bezeichnung "Glaskorrosion" bekannt ist, vermieden werden.According to a further aspect of the invention, one of the evaluation modules is designed for detecting glassware. Glassware is mainly only slightly dirty, with dirt adhering only relatively loose. The detection of glassware and the subsequent adjustment of the flow of the wash program thus allows a further increase in efficiency of the dishwasher. By adapting the washing program to a complete glassware loading of the washing container and damage to the relatively sensitive glassware can be avoided. In particular, the washing out of ions from the glassware, which is also known by the term "glass corrosion", can be avoided by adapting the rinsing parameters.

Da die Geschirrerfassungseinrichtung mehrere der genannten Auswertemodule umfasst, so ergibt sich ein kombinatorischer Effekt, der eine besonders genaue Anpassung des Spülprogramms an die Beladung des Spülbehälters ermöglicht. Da die Geschirrerfassungseinrichtung ein Auswertemodul zur Erfassung von Kunststoffgeschirr, ein Auswertemodul zur Erfassung von Metallgeschirr und ein Auswertemodul zur Erfassung von Glasgeschirr umfasst, können die im praktischen Betrieb einer Geschirrspülmaschine auftretenden Mischbeladungen hinsichtlich ihrer relevanten Hauptgeschirrarten erfasst werden. Dies ermöglicht eine optimale Anpassung des Spülprogramms an einen Großteil der im praktischen Betrieb auftretenden Beladungszusammensetzungen. Die Spülparameter können dann an die jeweils vorliegenden Mischbeladungen gezielt angepasst werden.Since the dish detection device comprises a plurality of said evaluation modules, the result is a combinatorial effect which allows a particularly precise adaptation of the wash program to the loading of the wash tub. Since the dish detection device is an evaluation module for detecting plastic dishes, an evaluation module for detecting metal dishes and an evaluation module for detecting Includes glassware, the occurring in the practical operation of a dishwasher mixing loads can be detected in terms of their main types of relevant dishes. This allows an optimal adaptation of the washing program to a large part of the loading compositions occurring in practical operation. The rinsing parameters can then be specifically adapted to the particular mixing loads present.

So kann beispielsweise eine zum Spülen von Metallgeschirr vorgesehene Temperaturerhöhung des Spülwassers unterbleiben, wenn sich in der Mischbeladung auch Glasgeschirr befindet, welches durch die erhöhte Temperatur beschädigt werden könnte. Um das Metallgeschirr dennoch zufriedenstellend reinigen zu können, kann die Dauer des Spülprogramms verlängert werden.Thus, for example, provided for rinsing metal utensils increase in temperature of the rinse water, if there is in the mixed load and glassware, which could be damaged by the increased temperature. To be able to clean the metal dishes satisfactorily, the duration of the washing program can be extended.

Wenn die Mischbeladung auch Kunststoffgeschirr umfasst, so kann der Trocknungsabschnitt des Spülprogramms daran angepasst werden, auch wenn dies für Metallgeschirr und Glasgeschirr eigentlich nicht erforderlich wäre. Insgesamt ist es durch die Verwendung der genannten Auswertemodule möglich, eine Anpassung des Spülprogramms auch bei Mischbeladungen zu optimieren. Hierdurch ergibt sich eine überragende Effizienzsteigerung der Geschirrspülmaschine.If the mixed load also includes plastic dishes, then the drying section of the washing program can be adapted to it, although this would not actually be required for metal dishes and glassware. Overall, it is possible by using the aforementioned evaluation modules to optimize an adjustment of the wash program even with mixed loads. This results in a superior efficiency increase of the dishwasher.

Nach einer vorteilhaften Weiterbildung der Geschirrspülmaschine umfasst die Geschirrerfassungseinrichtung ein Auswertemodul zur (bevorzugt quantitativen) Erfassung der in dem Spülbehälter befindlichen Gesamtmenge von Geschirr anhand der Signale wenigstens eines Sensors. Ein Auswertemodul zur Erfassung der Gesamtmenge ermöglicht einerseits eine Plausibilitätsprüfung der geschirrartenspezifischen Auswertemodule, andererseits kann durch eine Differenzbildung von Gesamtmenge und den Mengen der individuell erfassten Geschirrarten die Menge der nicht individuell erfassten Geschirrarten erfasst werden. Dies ermöglicht eine besonders gute Anpassung des Spülprogramms an die tatsächlich vorhandene Beladungszusammensetzung und somit eine besonders hohe Effizienzsteigerung der Geschirrspülmaschine.According to an advantageous development of the dishwasher, the dish detection device comprises an evaluation module for (preferably quantitative) detection of the total amount of dishes in the washing container on the basis of the signals of at least one sensor. On the one hand, an evaluation module for recording the total quantity enables a plausibility check of the control-room-specific evaluation modules; on the other hand, the amount of non-individually recorded types of dishes can be recorded by differentiating the total quantity and the quantities of individually recorded types of dishes. This allows a particularly good adaptation of the washing program to the actually existing loading composition and thus a particularly high increase in the efficiency of the dishwasher.

Nach einer besonders bevorzugten Weiterbildung der Erfindung weist die Geschirrerfassungseinrichtung mindestens einen Schallwandler zur Erfassung eines Geräusches auf, welches durch auf das Geschirr gesprühtes Spülwasser entsteht. Der Schallwandler ist vorzugsweise mit mindestens einem der Auswertemodule verbunden. Das jeweilige Auswertemodul ist zum Analysieren des Geräuschs insbesondere derart ausgebildet, dass nach einem vorgegebenen Geräuschauswertealgorithmus die jeweilige Geschirrart bzw. das gesamte Geschirr erfassbar ist. Die im Betrieb der Geschirrspülmaschine auf das Geschirr auftreffenden Strahlen aus Sprühwasser erzeugen Geräusche, deren Eigenschaften unter anderem von dem Material abhängen, aus dem das Geschirr besteht. Diese Geräusche werden mit einem Schallwandler in ein Signal, beispielsweise in ein elektrisches Signal, umgewandelt und einem Auswertemodul zugeführt. Das Auswertemodul analysiert dann dieses Signal auf Merkmale, welche charakteristisch für ein bestimmtes Material sind. Eine derart ausgebildete Geschirrerfassungseinrichtung erlaubt die Detektion einzelner Geschirrarten mit hoher Genauigkeit, da unterschiedliche Geschirrarten zu eindeutig identifizierbaren Geräuschmustern führen.According to a particularly preferred embodiment of the invention, the dish detection device has at least one sound transducer for detecting a noise, which is caused by rinsing water sprayed on the dishes. The sound transducer is preferably connected to at least one of the evaluation modules. The respective evaluation module is for analyzing the noise in particular designed such that according to a predetermined noise evaluation algorithm, the respective type of dish or the entire dishes can be detected. The jets of spray water impinging on the dishes during operation of the dishwasher produce noises whose properties depend, inter alia, on the material of which the dishes are made. These noises are converted with a sound transducer into a signal, for example into an electrical signal, and fed to an evaluation module. The evaluation module then analyzes this signal for features which are characteristic of a specific material. Such a trained dish detection device allows the detection of individual types of dishes with high accuracy, since different types of dishes lead to clearly identifiable noise patterns.

Gemäß einer bevorzugten Weiterbildung der Erfindung ist ein während des Spülprogramms rotierender Sprüharm zum Besprühen des Geschirrs mit Spülwasser vorgesehen, wobei das jeweilig mit dem Schallwandler verbundene Auswertemodul zur Analyse des Geräusches über wenigstens eine Drehung des Sprüharmes hinweg ausgebildet ist. Hierdurch ist sichergestellt, dass der gesamte Spülbehälter hinsichtlich des Auftretens einer bestimmten Geschirrart untersucht wird.According to a preferred embodiment of the invention, a rotating during the wash program spray arm is provided for spraying the dishes with rinse water, wherein the respectively connected to the transducer Auswertemodul is designed for analyzing the noise over at least one rotation of the spray arm. This ensures that the entire washing container is examined for the occurrence of a particular type of dish.

Gemäß einer besonders bevorzugten Weiterbildung der Erfindung ist das mit dem Schallwandler verbundene Auswertemodul zur Analyse des Geräusches über eine Vielzahl von Drehungen des Sprüharmes hinweg ausgebildet. Eine Kumulation des Signals über eine Vielzahl von Drehungen des Sprüharmes erhöht die Genauigkeit der Erfassung durch eine Verbesserung des Signalstörverhältnisses. Insbesondere kann ein negativer Einfluss von Fremdgeräuschen deutlich herabgesetzt werden.According to a particularly preferred development of the invention, the evaluation module connected to the sound transducer is designed to analyze the sound over a large number of rotations of the spray arm. Accumulation of the signal over a plurality of rotations of the spray arm increases the accuracy of detection by improving the signal perturbation ratio. In particular, a negative influence of extraneous noise can be significantly reduced.

Nach einer vorteilhaften Weiterbildung der Erfindung ist das jeweilig mit dem Schallwandler verbundene Auswertemodul zur Analyse der in dem Geräusch enthaltenen Frequenzen ausgebildet. Im Vergleich zu Auswertemodulen, welche lediglich die Intensität des Schalls analysieren, ergibt sich eine wesentlich genauere Trennschärfe hinsichtlich der unterschiedlichen Geschirrarten.According to an advantageous development of the invention, the respective evaluation module connected to the sound transducer is designed to analyze the frequencies contained in the noise. In comparison to evaluation modules, which analyze only the intensity of the sound, there is a much more precise selectivity with regard to the different types of dishes.

Gemäß einer besonders bevorzugten Weiterbildung der Erfindung ist das Auswertemodul zur Erfassung von Kunststoffgeschirr und/oder das Auswertemodul zur Erfassung von Metallgeschirr mit dem Schallwandler verbunden. Gerade Kunststoffgeschirr und Metallgeschirr erzeugen charakteristische Geräusche bzw. Geräuschanteile. Der Schallwandler eignet sich folglich besonders gut zur Erfassung von Kunststoffgeschirr und/oder Metallgeschirr.According to a particularly preferred embodiment of the invention, the evaluation module for detecting plastic crockery and / or the evaluation module for detecting Metal harness connected to the sound transducer. Straight plastic dishes and metal utensils produce characteristic noises or noise. The sound transducer is therefore particularly well suited for the detection of plastic dishes and / or metal dishes.

Gemäß einer zweckmäßigen Weiterbildung der Erfindung ist der Schallwandler im Bereich eines unteren Geschirrkorbes angeordnet. Übliche Geschirrspülmaschinen weisen einen unteren und einer oberen Geschirrkorb auf. Dabei werden Kunststoffgeschirr, beispielsweise Rührschüsseln aus Kunststoff, und Metallgeschirr, beispielsweise Töpfe und Pfannen, vorwiegend im unteren Geschirrkorb angeordnet. Deshalb kann Kunststoffgeschirr und Metallgeschirr besonders gut detektiert werden, wenn der Schallwandler im Bereich dieses unteren Geschirrkorbes angeordnet ist.According to an expedient development of the invention, the sound transducer is arranged in the region of a lower crockery basket. Conventional dishwashers have a lower and an upper dish rack. In this case, plastic dishes, such as mixing bowls made of plastic, and metal dishes, such as pots and pans, arranged mainly in the lower dish rack. Therefore, plastic dishes and metalware can be detected particularly well when the transducer is located in the area of this lower crockery basket.

Gemäß einer besonders bevorzugten Weiterbildung der Erfindung weist die Geschirrerfassungseinrichtung mindestens eine Lichtquelle zum Beleuchten des Geschirrs und mindestens eine Kamera zur bildmäßigen Erfassung von an dem Geschirr auftretenden Lichtreflexen auf, wobei die jeweilige Kamera mit mindestens einem der Auswertemodule verbunden ist, wobei das jeweilige Auswertemodul zum Analysieren der Lichtreflexe derart ausgebildet ist, dass nach einem vorgegebenen Lichtauswertealgorithmus die jeweilige Geschirrart bzw. das gesamte Geschirr erfassbar ist. Die Lichtquelle kann dabei beispielsweise Leuchtdioden oder Glühbirnen umfassen. Bei der Kamera kann es sich um eine elektronische Kamera, beispielsweise um eine C-MOS-Kamera, handeln. Die Kamera kann mit einem Weitwinkelobjektiv ausgerüstet sein, um einen möglichst großen Erfassungsbereich sicherzustellen.According to a particularly preferred development of the invention, the dish detection device has at least one light source for illuminating the dishes and at least one camera for imagewise detection of light reflections occurring on the dishes, wherein the respective camera is connected to at least one of the evaluation modules, wherein the respective evaluation module for analyzing the light reflections is designed such that, according to a given light evaluation algorithm, the respective type of crockery or the entire crockery can be detected. The light source may include, for example, light-emitting diodes or bulbs. The camera can be an electronic camera, for example a C-MOS camera. The camera can be equipped with a wide-angle lens to ensure the widest possible coverage.

Die Detektion einer Geschirrart mit einer derartigen Geschirrerfassungseinrichtung beruht darauf, dass an den Oberflächen unterschiedlicher Materialien charakteristische Lichtreflexe auftreten. Bei Lichtreflexen, auch Spitzlichter oder Schlaglichter (englisch: "highlights" oder "highlight areas") genannt, handelt es sich um lokal begrenzte Reflexionen von Licht, welche sich dadurch auszeichnen, dass sie wesentlich heller als der Hintergrund sind. Die durch die jeweilige Lichtquelle erzeugten und durch die jeweilige Kamera erfassten Lichtreflexe werden mittels eines geeigneten Lichtauswertealgorithmus analysiert, wobei anhand der Eigenschaften der Lichtreflexe eine bestimmte Geschirrart oder die Gesamtmenge an Geschirr detektiert wird. Der Vorteil einer derart aufgebauten Geschirrerfassungseinrichtung besteht darin, dass die Detektion bereits vor dem eigentlichen Spülprogramm durchgeführt werden kann.The detection of a type of dish with such a dish detection device based on the fact that occur on the surfaces of different materials characteristic light reflections. Light reflections, also known as highlights or highlights, are locally limited reflections of light, which are much brighter than the background. The light reflections generated by the respective light source and detected by the respective camera are analyzed by means of a suitable light evaluation algorithm, wherein a specific type of dishware or the total amount of dishes is detected on the basis of the properties of the light reflections. The advantage of a dishwashing device constructed in this way is that the detection can be performed before the actual wash program.

Nach einer zweckmäßigen Weiterbildung der Erfindung ist das jeweilig mit der Kamera verbundene Auswertemodul zur Ermittlung der Anzahl und/oder Größe der an dem Geschirr entstehenden Lichtreflexe ausgebildet. Eine derartige Auswertung der Lichtreflexe kann mit einem vergleichsweise einfachen Lichtauswertealgorithmus durchgeführt werden.According to an expedient development of the invention, the respectively associated with the camera evaluation module for determining the number and / or size of the light reflections arising on the dishes is formed. Such an evaluation of the light reflexes can be carried out with a comparatively simple light evaluation algorithm.

Gemäß einer bevorzugten Weiterbildung der Erfindung ist das jeweilig mit der Kamera verbundene Auswertemodul zur Ermittlung des Verhältnisses der Helligkeit der Lichtreflexe zur Helligkeit ihres unmittelbaren Hintergrundes ausgebildet. Dieses Verhältnis der Helligkeiten ist für viele Materialien charakteristisch, so dass bestimmte Geschirrarten mit großer Sicherheit unterschieden werden können.According to a preferred development of the invention, the respective evaluation module connected to the camera is designed to determine the ratio of the brightness of the light reflections to the brightness of its immediate background. This ratio of brightness is characteristic of many materials, so that certain types of dishes can be distinguished with great certainty.

Nach einer vorteilhaften Weiterbildung der Erfindung ist das jeweilig mit der Kamera verbundene Auswertemodul zur Ermittlung der Helligkeitsverteilung innerhalb der Lichtreflexe ausgebildet. Durch die alternative oder zusätzliche Ermittlung der Helligkeitsverteilung innerhalb der Lichtreflexe wird die Unterscheidung verschiedener Geschirrarten weiter verbessert.According to an advantageous development of the invention, the respectively connected to the camera evaluation module for determining the brightness distribution is formed within the light reflections. The alternative or additional determination of the brightness distribution within the light reflections further improves the distinction between different types of dishes.

Gemäß einer zweckmäßigen Weiterbildung der Erfindung ist die Kamera mit dem Auswertemodul zur Erfassung des Glasgeschirrs verbunden. Gerade an Oberflächen aus Glas entstehen besonders kontrastreiche Lichtreflexe. Damit kann Glasgeschirr besonders gut mittels einer Auswertung der von der Kamera gelieferten Bilder detektiert werden.According to an expedient development of the invention, the camera is connected to the evaluation module for detecting the glassware. Especially on surfaces made of glass especially high-contrast light reflections. This glassware can be detected very well by means of an evaluation of the images supplied by the camera.

Gemäß einer bevorzugten Weiterbildung der Erfindung ist die Kamera im Bereich eines oberen Geschirrkorbes der Geschirrspülmaschine angeordnet. Glasgeschirr wird überwiegend in einem oberen Geschirrkorb einer Geschirrspülmaschine eingebracht, so dass eine derart angeordnete Kamera den wesentlichen Glasanteil einer Spülbeladung gut erfassen kann.According to a preferred embodiment of the invention, the camera is arranged in the region of an upper dish rack of the dishwasher. Glassware is mainly introduced into an upper dish rack of a dishwasher, so that a camera arranged in this way can easily detect the essential glass content of a dishwashing load.

Nach einer vorteilhaften Weiterbildung der Erfindung ist das Auswertemodul zur Erfassung der Gesamtmenge des Geschirrs mit mindestens einem Sensor zur Erfassung der an dem Geschirr anhaftenden Menge von Spülwasser verbunden. Dem liegt die Überlegung zugrunde, dass die Gesamtmenge des im Spülbehälter befindlichen Geschirrs mit der Gesamtmenge des am Geschirr anhaftenden Spülwassers während eines Spülganges korrespondiert. Die Menge des anhaftenden Spülwassers ist im Wesentlichen unabhängig vom Material des Geschirrs und kann mit verhältnismäßig einfachen Sensoren erfasst werden.According to an advantageous embodiment of the invention, the evaluation module for detecting the total amount of dishes with at least one sensor for detecting the connected to the dishes adhering amount of rinse water. This is based on the consideration that the total amount of dishes located in the washing container with the total amount of rinse water adhering to the dishes during a rinse corresponds. The amount of adherent rinse water is substantially independent of the material of the harness and can be detected with relatively simple sensors.

Gemäß einer zweckmäßigen Weiterbildung der Erfindung ist der Sensor zur Erfassung der an dem Geschirr anhaftenden Menge von Spülwasser als Sensor zur Überwachung der Drehzahl einer Umwälzpumpe ausgebildet. Bei gängigen Geschirrspülmaschinen wird zu Beginn eines Abschnittes eines Spülprogramms eine definierte Menge von Wasser in den Spülbehälter eingebracht. Dieses sammelt sich aufgrund der Schwerkraft in einem unteren Bereich des Spülbehälters, beispielsweise in einem dafür vorgesehenen Sammeltopf. Um nun das Spülwasser im Spülbehälter umzuwälzen, ist beispielsweise eine Umwälzpumpe vorgesehen, welche das Spülwasser dem Sammeltopf entnimmt und es über eine Sprüheinrichtung in den Spülbehälter einsprüht. Hierbei trifft das Spülwasser auf das zu spülende Geschirr, wobei ein Teil des Spülwassers an dem Geschirr anhaftet und ein anderer Teil zurück in den Sammeltopf fließt. Wenn die Menge des zurückfließenden Teils jedoch so gering ist, dass die Umwälzpumpe neben Wasser auch Luft ansaugt, so verändert sich die Drehzahl derselben. Aus dem Auftreten dieses Effektes kann auf die Gesamtmenge des im Spülbehälter befindlichen Geschirrs geschlossen werden. Die Überwachung der Drehzahl der Umwälzpumpe kann beispielsweise durch eine Überwachung der elektrischen Betriebsdaten der Pumpe, wie beispielsweise Stromverbrauch, unter Zuhilfenahme der Steuereinrichtung, oder durch eine Überwachung der Geräusche der Umwälzpumpe, insbesondere unter Zuhilfenahme mindestens eines Steuerparameters der Steuereinrichtung, erfolgen. So kann beispielsweise durch die Steuereinrichtung als Maß für die Drehzahl der Umwälzpumpe der Verlauf des von der Umwälzpumpe aufgenommenen elektrischen Stroms herangezogen werden. Es kann somit auf indirektem Weg mittels der Steuereinrichtung mindestens ein Kriterium über Art bzw. Typ des zu spülenden Geschirrs abgeleitet werden. Durch die Überwachung der Drehzahl der Umwälzpumpe kann zudem verhindert werden, dass die Geschirrspülmaschine bei einer fehlerhaften Wasserzufuhr betrieben wird. Der entsprechende Sensor dient also mehreren Aufgaben.According to an expedient development of the invention, the sensor for detecting the adhering to the dishes amount of rinse water is designed as a sensor for monitoring the rotational speed of a circulating pump. In common dishwashers, a defined amount of water is introduced into the washing container at the beginning of a section of a washing program. This accumulates due to gravity in a lower portion of the washing, for example, in a designated collecting pot. In order to now circulate the rinse water in the washing, a circulation pump is provided, for example, which removes the rinse water from the collecting pot and sprays it via a spray into the washing. Here, the rinse water meets the dishes to be washed, with a portion of the rinse water adhering to the dishes and another part flows back into the collection pot. However, if the amount of the backflowing part is so small that the circulating pump sucks in addition to water and air, so the speed of the same changes. From the occurrence of this effect can be concluded on the total amount of dishes located in the washing. The monitoring of the rotational speed of the circulation pump, for example, by monitoring the electrical operating data of the pump, such as power consumption, with the aid of the control device, or by monitoring the noise of the circulation pump, in particular with the aid of at least one control parameter of the control device, take place. Thus, for example, can be used by the control device as a measure of the speed of the circulating pump, the course of the electrical current absorbed by the circulation pump. It can thus be derived indirectly by means of the control device at least one criterion on the type or type of dishes to be washed. By monitoring the speed of the circulation pump can also be prevented that the dishwasher is operated at a faulty water supply. The corresponding sensor thus serves several purposes.

Gemäß einer vorteilhaften Weiterbildung der Erfindung ist der Sensor zur Erfassung der an dem Geschirr anhaftenden Menge von Spülwasser als Sensor zur Überwachung eines Niveaus des sich in einem unteren Bereich des Spülbehälters ansammelnden Spülwassers ausgebildet. Ein derartiger Sensor ist einfach aufgebaut, liefert aber hinreichend genaue Messergebnisse.According to an advantageous embodiment of the invention, the sensor for detecting the adhering to the dishes amount of rinse water is designed as a sensor for monitoring a level of accumulating in a lower portion of the rinse tank rinse water. Such a sensor is simple in design, but provides sufficiently accurate measurement results.

Gemäß einer zweckmäßigen Weiterbildung der Erfindung ist das Auswertemodul zur Erfassung der Gesamtmenge des Geschirrs mit einem Sensor zur Erfassung der Heizrate verbunden. Die Heizrate gibt an, um welchen Wert sich die Temperatur des Spülwassers unter der Wirkung einer Heizeinrichtung der Geschirrspülmaschine in einer bestimmten Zeit erhöht. Die Heizrate ist dabei umso geringer, je mehr Geschirr sich im Spülbehälter befindet. Bei dem eigentlichen Messaufnehmer kann es sich um einen einfachen Temperaturfühler handeln, der zur Steuerung der Temperatur des Spülwassers ohnehin erforderlich ist. Die Heizrate kann also ohne größere konstruktive Änderungen an der Geschirrspülmaschine ermittelt werden.According to an expedient development of the invention, the evaluation module for detecting the total amount of dishes is connected to a sensor for detecting the heating rate. The heating rate indicates by which value the temperature of the rinsing water increases under the effect of a heating device of the dishwasher in a certain time. The heating rate is lower, the more dishes are in the washing. The actual sensor can be a simple temperature sensor, which is required to control the temperature of the rinse water anyway. The heating rate can therefore be determined without major design changes to the dishwasher.

Gemäß einer zweckmäßigen Weiterbildung der Erfindung ist das Auswertemodul zur Erfassung der Gesamtmenge des Geschirrs mit einem Sensor zur Erfassung des Gewichts des Geschirrs verbunden. Der Sensor kann so ausgebildet sein, dass das Gesamtgewicht des Spülbehälters oder das Gesamtgewicht der Geschirrkörbe erfasst wird. Der Sensor kann hierzu ein oder mehrere sogenannte Dehnungsmessstreifen umfassen. Es ergibt sich eine einfache und vergleichsweise genaue Erfassung der Gesamtmenge von Geschirr.According to an expedient development of the invention, the evaluation module for detecting the total amount of dishes is connected to a sensor for detecting the weight of the dishes. The sensor may be configured to detect the total weight of the rinse container or the total weight of the racks. For this purpose, the sensor may comprise one or more so-called strain gauges. This results in a simple and relatively accurate detection of the total amount of dishes.

Gemäß einer besonders bevorzugten Weiterbildung der Erfindung weist die Geschirrerfassungseinrichtung einen digitalen Signalprozessor zur Auswertung eines Signals eines der Sensoren auf. Digitale Signalprozessoren eignen sich insbesondere zur Auswertung der Signale des oben beschriebenen Schallwandlers oder der Signale der oben beschriebenen Kamera. Die den Sensoren jeweils zugeordneten Auswertemodule sind dann Software-Module, welche durch den digitalen Signalprozessor ausgeführt werden. Digitale Signalprozessoren erlauben dabei die Durchführung selbst komplexer Auswertealgorithmen in nahezu Echtzeit. Die mit Hilfe eines digitalen Signalprozessors realisierten Auswertemodule können einfach implementiert und auch nachträglich angepasst werden. Die Geschirrerfassungseinrichtung kann mehrere digitale Signalprozessoren aufweisen, aufgrund der heutigen Leistungsfähigkeit reicht jedoch in vielen Fällen ein einziger digitaler Signalprozessor aus.According to a particularly preferred development of the invention, the dish detection device has a digital signal processor for evaluating a signal of one of the sensors. Digital signal processors are particularly suitable for evaluating the signals of the sound transducer described above or the signals of the camera described above. The evaluation modules respectively assigned to the sensors are then software modules which are executed by the digital signal processor. Digital signal processors allow the execution of even complex evaluation algorithms in near real time. The evaluation modules implemented with the aid of a digital signal processor can be easily implemented and subsequently adapted. The dish detection device may include a plurality of digital signal processors due to However, today's performance is sufficient in many cases, a single digital signal processor.

Im Rahmen der Erfindung kann anstelle oder zusätzlich zu den ein oder mehreren Signalen mindestens eines Sensors ggf. auch mindestens ein Steuerparameter der Steuereinrichtung zur Erfassung einer aus einem gleichartigen Material bestehenden Geschirrart herangezogen werden.Within the scope of the invention, instead of or in addition to the one or more signals of at least one sensor, it is also possible to use at least one control parameter of the control device for detecting a type of dishware made of a similar material.

Die Erfindung und ihre Weiterbildung werden nachfolgend anhand von Figuren näher erläutert. Es zeigen:

Figur 1
ein vorteilhaftes Ausführungsbeispiel einer erfindungsgemäß ausgebildeten Geschirrspülmaschine in einer schematischen Seitenansicht, und
Figur 2
ein Blockschaltbild der Geschirrerfassungseinrichtung der Geschirrspülmaschine von Figur 1.
The invention and its development will be explained in more detail with reference to figures. Show it:
FIG. 1
an advantageous embodiment of an inventively designed dishwasher in a schematic side view, and
FIG. 2
a block diagram of the dish detection device of the dishwasher of FIG. 1 ,

Elemente mit gleicher Funktion und Wirkungsweise sind in den Figuren 1 und 2 jeweils mit denselben Bezugszeichen versehen.Elements with the same function and mode of action are in the FIGS. 1 and 2 each provided with the same reference numerals.

Figur 1 zeigt ein vorteilhaftes Ausführungsbeispiel einer erfindungsgemäß konstruierten Geschirrspülmaschine 1 in einer schematischen Seitenansicht, wobei lediglich die für das Verständnis der Erfindung wesentlichen Bestandteile dargestellt und mit Bezugszeichen versehen sind. Die Geschirrspülmaschine 1, welche als Haushaltsgeschirrspülmaschine 1 ausgebildet ist, weist ein Gehäuse 2 auf, in dem ein Spülbehälter 3 angeordnet ist. Der Spülbehälter 3 ist durch eine Tür 4 verschließbar, so dass eine geschlossene Spülkammer zum Spülen von Geschirr entsteht. In Figur 1 ist die Tür 4 in ihrer Geschlossenstellung gezeigt. Die Tür 4 ist durch Schwenken um eine senkrecht zur Zeichenebene angeordnete Achse in eine Offenstellung bringbar, in der sie im Wesentlichen waagerecht ausgerichtet ist und das Einbringen bzw. das Entnehmen von Geschirr ermöglicht. Die Geschirrspülmaschine 1 weist zum Positionieren von Geschirr einen oberen Geschirrkorb 5 und einen unteren Geschirrkorb 6 auf. Der obere Geschirrkorb 5 ist dabei an Ausfahrschienen 7 angeordnet, welche jeweils an einer Seitenwand des Spülbehälters 3 befestigt sind. Der Geschirrkorb 5 ist bei geöffneter Tür 4 mittels der Ausfahrschienen 7 aus dem Spülbehälter 3 ausfahrbar, was das Be- bzw. Entladen des oberen Geschirrkorbes 5 erleichtert. Der untere Geschirrkorb 6 ist in analoger Weise an Ausfahrschienen 8 angeordnet. FIG. 1 shows an advantageous embodiment of an inventively constructed dishwasher 1 in a schematic side view, with only the essential components for understanding the invention are shown and provided with reference numerals. The dishwasher 1, which is designed as a household dishwasher 1, has a housing 2, in which a washing container 3 is arranged. The rinsing container 3 can be closed by a door 4, so that a closed rinsing chamber is created for rinsing crockery. In FIG. 1 the door 4 is shown in its closed position. The door 4 can be brought into an open position by pivoting about an axis arranged perpendicular to the plane of the drawing, in which it is aligned substantially horizontally and allows the introduction or removal of dishes. The dishwasher 1 has an upper dish rack 5 and a lower dish rack 6 for positioning dishes. The upper crockery basket 5 is arranged on extension rails 7, which are each attached to a side wall of the washing container 3. The crockery basket 5 is open door 4 by means of the extension rails. 7 from the washing container 3 extendable, which facilitates the loading and unloading of the upper dish rack 5. The lower dish rack 6 is arranged in an analogous manner on extension rails 8.

Die Geschirrspülmaschine 1 umfasst eine Zuführeinrichtung 9 für Frischwasser FW, welche so ausgebildet ist, dass von außen zugeführtes Frischwasser FW kontrolliert in das Innere des Spülbehälters 3 gelangen kann. Das kontrolliert zugeführte Frischwasser FW sammelt sich aufgrund seiner Schwerkraft als Spülwasser S in einem Sammeltopf 10, der einen unteren Teil des Spülbehälters 3 bildet. Der Sammeltopf 10 steht dabei in Verbindung mit einer Umwälzpumpe 11, mit deren Hilfe Spülwasser S aus dem Sammeltopf 10 über eine Heizung 12 zu einer Wasserweiche 13 gepumpt werden kann. Die Wasserweiche 13 weist zwei Ausgänge auf, von denen einer mit einem oberen Sprüharm 14 und der andere mit einem unteren Sprüharm 15 verbunden ist. Die Wasserweiche 13 ist dabei so steuerbar, dass das von der Umwälzpumpe 11 geförderte Spülwasser S wahlweise durch einen der Sprüharme 14, 15 oder durch beide Sprüharme 14, 15 in den Spülbehälter 3 gefördert wird, um so das dort befindliche Geschirr zu spülen. Um nicht mehr benötigtes Spülwasser S aus dem Spülbehälter 3 abführen zu können, ist weiterhin eine Abführeinrichtung 16 vorgesehen, welche zum Abfördern von Spülwasser S als Abwasser AW nach außen ausgebildet ist. Um das Spülwasser S mit Reinigungsmitteln und/oder Reinigungshilfsmitteln, wie beispielsweise Klarspülmittel, zu versehen, ist ferner eine Dosiereinrichtung 17 vorgesehen.The dishwasher 1 comprises a supply device 9 for fresh water FW, which is designed so that externally supplied fresh water FW controlled in the interior of the washing container 3 can pass. The fresh water supplied FW collects due to its gravity as flushing water S in a collecting pot 10, which forms a lower part of the washing container 3. The collecting pot 10 is in communication with a circulating pump 11, with the aid of which flushing water S can be pumped out of the collecting pot 10 via a heater 12 to a water distributor 13. The water diverter 13 has two outlets, one of which is connected to an upper spray arm 14 and the other to a lower spray arm 15. The water switch 13 is controlled so that the funded by the circulation pump 11 rinse water S is optionally promoted by one of the spray arms 14, 15 or by both spray arms 14, 15 in the washing 3, so as to flush the dishes located there. In order to be able to remove rinsing water S no longer needed from the rinsing container 3, a discharge device 16 is furthermore provided, which is designed for discharging rinsing water S as wastewater AW to the outside. In order to provide the rinse water S with cleaning agents and / or cleaning aids, such as rinse aid, a metering device 17 is further provided.

Die Geschirrspülmaschine 1 weist eine im Bereich einer Bedienblende der Tür 4 angeordnete Steuereinrichtung 18 auf, welche zu Steuerungszwecken mit der Zuführeinrichtung 9, mit der Umwälzpumpe 11, mit der Heizung 12, mit der Wasserweiche 13, mit der Abführeinrichtung 16 und der Dosiereinrichtung 17 verbunden ist. Die Steuereinrichtung 18 ist dabei zur automatischen Ablaufsteuerung eines Spülprogramms ausgebildet.The dishwasher 1 has a control device 18 arranged in the region of a control panel of the door 4, which control device is connected to the feed device 9, to the circulation pump 11, to the heater 12, to the water separator 13, to the discharge device 16 and to the metering device 17 , The control device 18 is designed for automatic sequence control of a wash program.

Ein typisches Spülprogramm umfasst dabei mehrere nacheinander ablaufende Abschnitte. Beispielhaft sei im Folgenden der grundsätzliche Ablauf eines Spülprogramms erläutert: ein erster Abschnitt eines Spülprogramms ist üblicherweise als Vorspülgang vorgesehen. Dabei wird eine bestimmte Menge an Frischwasser FW über die Zuführeinrichtung 9 in den Spülbehälter 3 geleitet. Das zugeführte Frischwasser FW wird dann mittels der Umwälzpumpe 11 als Spülwasser S für einen bestimmten Zeitraum im Spülbehälter 3 umgewälzt. Üblicherweise wird das Spülwasser S dabei insbesondere mit einer relativ geringen Temperatur von beispielsweise 30°C umgewälzt. Selbstverständlich ist bei Bedarf auch ein stärkeres Aufheizen des Spülwassers beim Vorspülvorgang möglich. Eine Zugabe von Reinigungsmitteln kann dabei unterbleiben. Im Vorspülgang werden gröbere Verschmutzungen vom zu spülenden Geschirr entfernt, wobei das Spülwasser S mit den Verschmutzungen am Ende des Vorspülganges über die Abführeinrichtung 16 nach außen abgeführt wird.A typical washing program includes several successive sections. By way of example, the basic sequence of a washing program is explained below: a first section of a washing program is usually provided as a pre-wash cycle. In this case, a certain amount of fresh water FW is passed through the feeding device 9 in the washing compartment 3. The supplied fresh water FW is then by means of the circulation pump 11 as the rinse water S for a certain period in the washing container. 3 circulated. Usually, the rinsing water S is in particular circulated at a relatively low temperature, for example 30 ° C. Of course, if necessary, a stronger heating of the rinse water in the pre-rinse process is possible. An addition of cleaning agents can be omitted. In the pre-rinse cycle coarser soiling are removed from the dishes to be washed, the rinse water S is discharged with the dirt at the end of the pre-rinse cycle via the discharge device 16 to the outside.

An den Vorspülgang schließen sich ein oder mehrere Reinigungsgänge an, bei dem der Spülbehälter jeweils erneut mit Frischwasser FW gefüllt wird. Das Frischwasser FW wird dabei als Spülwasser S auf eine höhere Temperatur, beispielsweise auf 50°C, gebracht und mit Reinigungsmitteln versetzt. Nach einer Umwälzung des Spülwassers S für eine bestimmte Zeitspanne wird das Spülwasser S erneut über die Abführeinrichtung 16 abgeführt.The pre-rinse cycle is followed by one or more cleaning cycles, in which the rinsing container is again filled with fresh water FW. The fresh water FW is brought as a rinse water S to a higher temperature, for example to 50 ° C, and added with cleaning agents. After a circulation of the rinse water S for a certain period of time, the rinse water S is discharged again via the discharge device 16.

In einem anschließenden Klarspülgang mit neu zugeführtem Frischwasser FW wird das Spülwasser S mit einem Klarspülmittel versetzt und umgewälzt. Der Klarspülgang bereitet dabei eine fleckenfreie Trocknung des gespülten Geschirrs vor. Hierzu wird das Spülwasser S auf eine besonders hohe Temperatur, beispielsweise auf 70°C, gebracht, so dass sich auch das Geschirr aufheizt. Zu Ende des Klarspülganges wird das Spülwasser S erneut abgepumpt.In a subsequent rinse with newly supplied fresh water FW the rinse water S is mixed with a rinse aid and circulated. The rinse cycle prepares a spot-free drying of the washed dishes. For this purpose, the rinse water S is brought to a particularly high temperature, for example to 70 ° C, so that also heats the dishes. At the end of the rinse cycle, the rinse water S is pumped out again.

Während des nun beginnenden Trocknungsganges verdampft das an dem Geschirr anhaftende Wasser aufgrund der hohen Temperatur des Geschirrs, wobei der Dampf an den kalten Wänden des Spülbehälters 3 kondensiert. Dieses kondensierte Wasser sammelt sich im Sammeltopf 10 und kann abgepumpt werden. Damit ist das Spülprogramm beendet.During the now beginning drying cycle, the water adhering to the dishes evaporated due to the high temperature of the dishes, the steam condenses on the cold walls of the washing compartment 3. This condensed water collects in the collection pot 10 and can be pumped out. This completes the washing program.

Um nun den Ablauf des Spülprogramms mit Blick auf einen konkreten Beladungszustand des Spülbehälters 3 hin zu optimieren, weist die erfindungsgemäße Geschirrspülmaschine 1 eine Geschirrerfassungseinrichtung auf. Die Anpassung des Ablaufs kann dabei sämtliche Parameter des oben skizzierten Grundablaufs betreffen.In order to optimize the sequence of the washing program with a view to a specific loading state of the washing container 3, the dishwasher 1 according to the invention has a dish detection device. The adaptation of the sequence can relate to all parameters of the basic sequence outlined above.

Die Geschirrerfassungseinrichtung umfasst eine Zentraleinheit 19, welche mit der Steuereinrichtung 18 zum Informationsaustausch in Verbindung steht. Die Zentraleinheit 19 kann in räumlicher Nähe zur Steuereinrichtung 18 angeordnet oder unmittelbar in diese integriert sein.The dish detection device comprises a central unit 19, which communicates with the control device 18 for information exchange. The central unit 19 can be arranged in spatial proximity to the control device 18 or be integrated directly into it.

Die Geschirrerfassungseinrichtung umfasst ferner eine Vielzahl von Sensoren, deren Sensorsignale der Zentraleinheit 19 zugeführt werden. So umfasst die Geschirrerfassungseinrichtung einen Schallwandler 20, der im Bereich des unteren Geschirrkorbes 6 an der Innenseite der Tür 4 angeordnet ist. Der Schallwandler 20 könnte jedoch auch an einer feststehenden Wand des Spülbehälters 3 angeordnet sein. Der Schallwandler 20 ist als Mikrofon 20 ausgebildet und erfasst Geräusche, welche dadurch entstehen, dass Spülwasser S auf das im Spülbehälter 3 befindliche Geschirr gesprüht wird. Da die durch das auftreffende Spülwasser S entstehenden Geräusche wesentlich vom Materialmix des Geschirrs abhängen, ermöglicht eine Analyse der durch den Schallwandler 20 erzeugten Signale eine Detektion einer oder mehrerer durch ein jeweils gemeinsames Material gekennzeichneten Geschirrarten.The dish detection device further comprises a plurality of sensors whose sensor signals are supplied to the central unit 19. Thus, the dish detection device comprises a sound transducer 20, which is arranged in the region of the lower crockery basket 6 on the inside of the door 4. However, the sound transducer 20 could also be arranged on a fixed wall of the washing container 3. The sound transducer 20 is designed as a microphone 20 and detects noises, which arise from the fact that rinse water S is sprayed onto the dishes located in the washing container 3. Since the noise resulting from the impinging rinse water S depends substantially on the material mix of the dishes, an analysis of the signals generated by the sound transducer 20 allows detection of one or more types of dishes characterized by a respective common material.

An der Decke des Spülbehälters 3 ist eine Lichtquelle 21 angeordnet, welche aus zwei Leuchtdiodenanordnungen 21 besteht. Die Leuchtdiodenbänke 21 sind so angeordnet, dass das im Spülbehälter 3 befindliche Geschirr angestrahlt wird. Hierdurch entstehen an dem Geschirr Lichtreflexe, welche je nach Geschirrart unterschiedliche Eigenschaften aufweisen. Eine Kamera 22, welche ebenfalls an der Decke des Spülbehälters 3 angeordnet ist, erfasst das Geschirr sowie die daran entstandenen Lichtreflexe. Eine Auswertung der Bilder der Kamera 22 ermöglicht es, durch Untersuchung der darin enthaltenen Lichtreflexe verschiedene Geschirrarten zu unterscheiden und somit getrennt zu detektieren.On the ceiling of the washing container 3, a light source 21 is arranged, which consists of two light-emitting diode assemblies 21. The LED banks 21 are arranged so that the dishes located in the washing container 3 is illuminated. This results in the dishes light reflections, which have different properties depending on the type of dish. A camera 22, which is also arranged on the ceiling of the washing container 3, detects the dishes and the resulting light reflections. An evaluation of the images of the camera 22 makes it possible to distinguish different types of dishes by examining the light reflections contained therein and thus to detect separately.

Zu Bestimmung der Gesamtmenge des im Spülbehälter 3 befindlichen Geschirrs sind unabhängig arbeitenden Sensoren 23, 24, 25, 26 vorgesehen. Grundsätzlich wäre zur Erfassung der Gesamtmenge von Geschirr einer der genannten Sensoren ausreichend, im Hinblick auf eine hohe Prozesssicherheit ist jedoch eine Kombination der genannten Sensoren sinnvoll. Bei dem Sensor 23 handelt es sich um einen Niveausensor 23, der den Füllstand von Spülwasser S im Sammeltopf 10 detektiert. Wenn die als Frischwasser FW zugeführte Spülwassermenge bekannt ist, dann ist der Füllstand im Sammeltopf 10 ein Maß dafür, wie viel Wasser während des Spülganges an dem Geschirr anhaftet. Diese anhaftende Menge von Spülwasser S wiederum ist ein Maß für die Gesamtmenge an Geschirr im Spülbehälter 3.To determine the total amount of dishes located in the washing 3 dishes independently operating sensors 23, 24, 25, 26 are provided. In principle, one of the sensors mentioned would be sufficient for detecting the total quantity of dishes, but in view of a high level of process reliability, a combination of the mentioned sensors makes sense. The sensor 23 is a level sensor 23, which detects the level of flushing water S in the collection pot 10. If the amount of flushing water supplied as fresh water FW is known, then the filling level in the collecting pot 10 is known a measure of how much water adheres to the dishes during the wash cycle. This adhering amount of rinse water S, in turn, is a measure of the total amount of dishes in the rinse tank 3.

Der Sensor 24 ist als Temperatursensor 24 ausgebildet, der die Temperatur des Spülwassers S erfasst. Er ermöglicht die Ermittlung der Heizrate, also einen Anstieg der Temperatur in einer bestimmten Zeiteinheit, der durch die Heizung 12 bewirkt wird. Die Heizrate ist dabei umgekehrt proportional zur Gesamtgeschirrmenge.The sensor 24 is designed as a temperature sensor 24, which detects the temperature of the rinse water S. It allows the determination of the heating rate, ie an increase in the temperature in a specific time unit, which is caused by the heater 12. The heating rate is inversely proportional to the total amount of dishes.

Weiterhin ist der Sensor 25 als Drehzahlsensor 25 ausgebildet, wobei der Drehzahlsensor 25 die Drehzahl der Umwälzpumpe 11 detektiert. Die Bestimmung der Gesamtmenge an Geschirr kann nun derart erfolgen, dass zunächst eine bestimmte Menge von Frischwasser FW in den Spülbehälter 3 eingebracht wird, dieses umgewälzt und nun überprüft wird, ob der Füllstand im Pumpentopf 10 soweit absinkt, dass die Umwälzpumpe 11 Luft ansaugt, was sich in einer Drehzahlerhöhung bemerkbar macht. Dann wird erneut Frischwasser FW in bestimmter Menge zugeführt und ermittelt, ob erneut Luft angesaugt wird. Dieses Vorgehen wird so lange wiederholt, bis keine Luft mehr angesaugt wird, so dass die Umwälzpumpe wieder rund läuft. Auf diese Weise wird eine Bestimmung der an dem Geschirr anhaftenden Menge von Spülwasser S möglich, was ein Maß für die Spülgutmenge ist. Anstelle des Drehzahlsensors 25 kann es ggf. auch ausreichend sein, wenn die Steuereinrichtung 18 aus der Stromaufnahmeverlaufskurve der Umwälzpumpe ein Maß für deren Drehzahl ableitet, d.h. diese auf indirektem Weg ermittelt. Der separate Drehzahlsensor kann somit entfallen.Furthermore, the sensor 25 is designed as a speed sensor 25, wherein the speed sensor 25 detects the rotational speed of the circulation pump 11. The determination of the total amount of dishes can now be such that first a certain amount of fresh water FW is introduced into the washing tank 3, this is circulated and now checked whether the level in the sump 10 drops so far that the circulation pump 11 sucks air, which makes itself felt in a speed increase. Then fresh water FW is supplied again in a certain amount and determines whether air is sucked again. This procedure is repeated until no more air is sucked in, so that the circulating pump runs around again. In this way, a determination of the adhering to the dishes amount of rinse water S is possible, which is a measure of the Spülgutmenge. If necessary, instead of the rotational speed sensor 25, it may also be sufficient if the control device 18 derives a measure of its rotational speed from the current consumption curve of the circulation pump, i. this determined indirectly. The separate speed sensor can thus be omitted.

Der Sensor 26 ist als Gewichtssensor ausgebildet. Der Gewichtssensor 26 umfasst Dehnungsmessstreifen 26a, welche das Gewicht des oberen Geschirrkorbes 5 erfassen. Weiterhin umfasst der Sensor 26 Dehnungsmessstreifen 26b, welche das Gewicht des unteren Geschirrkorbes 6 detektieren. Hierdurch ist eine getrennte Erfassung des im oberen Geschirrkorb 5 angeordneten Geschirrs und des im unteren Geschirrkorb 6 angeordneten Geschirrs möglich.The sensor 26 is designed as a weight sensor. The weight sensor 26 includes strain gauges 26 a, which detect the weight of the upper crockery basket 5. Furthermore, the sensor 26 comprises strain gauges 26b, which detect the weight of the lower crockery basket 6. As a result, a separate detection of the arranged in the upper dish rack 5 dishes and dishes arranged in the lower dish rack 6 is possible.

Figur 2 zeigt ein Blockschaltbild der Geschirrerfassungseinrichtung 27. Die Zentraleinheit 19 der Geschirrerfassungseinrichtung 27 umfasst ein Auswertemodul 28 zur Erfassung von Kunststoffgeschirr, ein Auswertemodul 29 zur Erfassung von Metallgeschirr, ein Auswertemodul 30 zur Erfassung von Glasgeschirr und ein Auswertemodul 31 zur Erfassung der Gesamtmenge des Geschirrs. Die Zentraleinheit 19 umfasst dabei einen digitalen Signalprozessor 32, auf dem die Auswertemodule 28 bis 31 durch eine entsprechende Software eingerichtet sind. Die Auswertemodule 28 bis 31 führen jeweils einen Algorithmus zur Auswertung von Sensorsignalen aus. Die Auswertemodule 28 bis 31 sind dabei vorzugsweise insoweit voneinander unabhängig, als dass das Auswerteergebnis des einen Auswertemoduls nicht von dem Ergebnis eines anderen Auswertemoduls abhängt. Stets werden Sensorsignale unmittelbar verarbeitet. FIG. 2 shows a block diagram of the dish detection device 27. The central unit 19 of the dish detection device 27 comprises an evaluation module 28 for detecting plastic dishes, an evaluation module 29 for detecting metal dishes, an evaluation module 30 for detecting glassware and an evaluation module 31 for detecting the total amount of the dishes. The central unit 19 comprises a digital signal processor 32, on which the evaluation modules 28 to 31 are set up by appropriate software. The evaluation modules 28 to 31 each execute an algorithm for evaluating sensor signals. The evaluation modules 28 to 31 are preferably independent of each other insofar as the evaluation result of the one evaluation module does not depend on the result of another evaluation module. Sensor signals are always processed directly.

Konkret ist das Auswertemodul 28 zur Erfassung von Kunststöffgeschirr zur Auswertung der Signale des oben beschriebenen Schallwandlers 20 ausgebildet. Auch das Auswertemodul 29 zur Erfassung von Metallgeschirr ist zur Auswertung der Signale des Schallwandlers 20 ausgebildet, wobei jedoch die Erfassung von Metallgeschirr auf der Erkennung von metallgeschirrtypischen Geräuschen und die Erfassung von Kunststoffgeschirr aufgrund der Erkennung von kunststoffgeschirrtypischen Geräuschanteilen beruht. Die Auswertemodule 28 und 29 sind dabei zur Analyse der Amplituden verschiedener Frequenzen des Geräusches ausgebildet.Specifically, the evaluation module 28 is designed for detecting plastic harness for evaluating the signals of the sound transducer 20 described above. The evaluation module 29 for detecting metal utensils is also designed for evaluating the signals of the sound transducer 20, but the detection of metalware is based on the detection of metalware typical noises and the detection of plastic dishes due to the detection of plastic dishes typical noise components. The evaluation modules 28 and 29 are designed to analyze the amplitudes of different frequencies of the noise.

Das Auswertemodul 30 zur Erfassung von Glasgeschirr ist zur Auswertung der durch die Kamera 22 erfassten Bilder ausgebildet. Die entsprechenden Bilder werden dabei als Signal von der Kamera 22 zum Auswertemodul 30 übertragen.The evaluation module 30 for detecting glassware is designed to evaluate the images captured by the camera 22. The corresponding images are transmitted as a signal from the camera 22 to the evaluation module 30.

Das Auswertemodul 31 für die Gesamtmenge von Geschirr ist ferner zur Auswertung der Signale des Niveausensors 23, des Temperatursensors 24, des Drehzahlsensors 25 und des Gewichtssensors 26 ausgebildet.The total amount of crockery evaluation module 31 is further configured to evaluate the signals from the level sensor 23, the temperature sensor 24, the speed sensor 25, and the weight sensor 26.

Die Auswerteergebnisse der Auswertemodule 28 bis 31 werden an die Steuereinrichtung 18 übertragen. Die Steuereinrichtung 18 wird hierdurch in die Lage versetzt, den Ablauf des Spülprogramms in Abhängigkeit vom erfassten Geschirr zu steuern. So ist es der Steuereinrichtung 18 möglich, durch entsprechende Steuerbefehle an die Zuführeinrichtung 9 die zugeführte Frischwassermenge exakt an die jeweilige Beladung anzupassen. Durch entsprechende Steuerbefehle an die Umwälzpumpe 11 ist zudem die Dauer eine Umwälzphase, beispielsweise in einem Vorspülgang, steuerbar. Ebenso kann der Druck des Spülwassers während des Umwälzens variiert werden. Durch Steuerbefehle an die Heizung 12 ist die Spülwassertemperatur an die konkreten Erfordernisse anpassbar. Weiterhin ist durch Steuerbefehle an die Wasserweiche 13 die Verteilung des Spülwassers S an den oberen bzw. an den unteren Sprüharm variierbar. Entsprechende Steuerbefehle an die Abführeinrichtung 16 stellen sicher, dass das Abpumpen von Abwasser nach Beendigung einer Umwälzphase erfolgt. Zudem ist es der Steuereinrichtung 18 möglich, durch entsprechende Steuerbefehle an die Dosiereinrichtung 17 die Zufuhr von Reinigungsmitteln oder Reinigungshilfsmitteln in Abhängigkeit von der konkret vorhandenen Beladung des Spülbehälters 3 zu variieren.The evaluation results of the evaluation modules 28 to 31 are transmitted to the control device 18. The control device 18 is thus enabled to control the flow of the washing program in dependence on the detected dishes. Thus, it is possible for the control device 18 to adapt the supplied fresh water quantity exactly to the respective load by means of corresponding control commands to the feed device 9. By appropriate control commands to the circulation pump 11, the duration is also a circulation phase, for example in a pre-rinse, controllable. Likewise, the pressure of the rinse water during the circulation can be varied. Through control commands to the Heater 12, the rinse water temperature can be adapted to the specific requirements. Furthermore, by means of control commands to the water distributor 13, the distribution of the rinsing water S to the upper or lower spray arm can be varied. Corresponding control commands to the discharge device 16 ensure that the pumping out of wastewater takes place after the completion of a circulation phase. In addition, it is possible for the control device 18 to vary the supply of cleaning agents or cleaning aids as a function of the actual loading of the washing container 3 by corresponding control commands to the metering device 17.

Abweichend vom Ausführungsbeispiel ist es selbstverständlich auch möglich, die Lichtquelle sowie die Kamera und/oder den Schallwandler an irgendeiner einer anderen, geeigneten Stelle des Spülbehälters, insbesondere in dessen Innerem, vorzusehen.Deviating from the exemplary embodiment, it is of course also possible to provide the light source and the camera and / or the sound transducer at any other, suitable location of the washing container, in particular in its interior.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Geschirrspülmaschinedishwasher
22
Gehäusecasing
33
Spülbehälterrinse tank
44
Türdoor
55
oberer Geschirrkorbupper dish rack
66
unterer Geschirrkorblower crockery basket
77
Ausfahrschieneout rail
88th
Ausfahrschieneout rail
99
Zuführeinrichtung für FrischwasserFeeding device for fresh water
1010
Sammeltopfcollecting pot
1111
Umwälzpumpecirculating pump
1212
Heizungheater
1313
Wasserweichewater points
1414
oberer Sprüharmupper spray arm
1515
unterer Sprüharmlower spray arm
1616
Abführeinrichtung für AbwasserDrainage device for wastewater
1717
Dosiereinrichtungmetering
1818
Steuereinrichtungcontrol device
1919
Zentraleinheitcentral processing unit
2020
Schallwandlertransducer
2121
Lichtquellelight source
2222
Kameracamera
2323
Niveausensorlevel sensor
2424
Temperatursensortemperature sensor
2525
DrehzahlsensorSpeed sensor
2626
Gewichtssensorweight sensor
2727
GeschirrerfassungseinrichtungDishes detector
2828
Auswertemodul für KunststoffgeschirrEvaluation module for plastic dishes
2929
Auswertemodul für MetallgeschirrEvaluation module for metalware
3030
Auswertemodul für GlasgeschirrEvaluation module for glassware
3131
Auswertemodul für GesamtmengeEvaluation module for total quantity
3232
Digitaler SignalprozessorDigital signal processor
AWAW
Abwassersewage
FWFW
Frischwasserfresh water
SS
Spülwasserdishwater

Claims (22)

  1. Dishwasher in the form of a household dishwasher, having a wash tub (3) for receiving dishes during a wash program, having a dish detection device (27) for detecting the dishes put into the wash tub (3) and having a control device (18) for controlling the sequence of the wash program as a function of the detected dishes, characterised in that the dish detection device (27) has a plurality of evaluation modules (28, 29, 30) which operate independently of one another and which are embodied in each instance to detect a type of dish consisting of the same type of material based on the signals of at least one sensor (20, 22) and/or based on at least one control parameter of the control device (18), so that the signals are evaluated with respect to a type of dish independently of the evaluation of the signals with respect to another type of dish, wherein one of the evaluation modules (28) is embodied to detect plasticware based on the signals of at least one sensor (20), wherein a further one of the evaluation modules (29) is embodied to detect metalware based on the signals of at least one sensor (20), and wherein yet another one of the evaluation modules (30) is embodied to detect glassware based on the signals of at least one further sensor (22)..
  2. Dishwasher according to one of the preceding claims, characterised in that the dish detection device (27) comprises an evaluation module (31) for detecting the total quantity of dishes present in the wash tub (3) based on the signals of at least one sensor (23, 24, 25, 26).
  3. Dishwasher according to one of the preceding claims, characterised in that the dish detection device (27) has at least one sound transducer (20) for detecting a noise, which is produced by wash water (S) sprayed onto the dish.
  4. Dishwasher according to claim 3, characterised in that the sound transducer (20) is connected to at least one of the evaluation modules (28, 29, 30, 31).
  5. Dishwasher according to claim 4, characterised in that the respective evaluation module (28, 29) is embodied to analyse the noise such that the respective type of dish and/or all the dishes can be detected according to a predetermined noise evaluation algorithm.
  6. Dishwasher according to one of claims 3 to 5, characterised in that a spray arm (14, 15) which rotates during the wash program is provided to spray the dishes with wash water (S), wherein the evaluation module (28, 29) which is connected in each instance to the sound transducer (20) is embodied to analyse the noise over at least one rotation of the spray arm (14, 15).
  7. Dishwasher according to one of claims 3 to 5, characterised in that the evaluation module (28, 29) connected to the sound transducer (20) is embodied to analyse the noise over a plurality of rotations of the spray arm (14, 15).
  8. Dishwasher according to one of claims 3 to 7, characterised in that the evaluation module (28, 29) which is connected in each instance to the sound transducer (20) is embodied to analyse the frequencies contained in the noise.
  9. Dishwasher according to one of claims 3 to 8, characterised in that an evaluation module (28) for detecting plasticware and/or an evaluation module (29) for detecting metalware is connected to the sound transducer (20).
  10. Dishwasher according to one of the preceding claims, characterised in that the sound transducer (20) is arranged in the region of a lower rack (6).
  11. Dishwasher according to one of the preceding claims, characterised in that the dish detection device (27) has at least one light source (21) for illuminating the dishes and at least one camera (22) for the pictorial capturing of light reflexes occurring on the dishes, wherein the camera (22) is connected to at least one of the evaluation modules (28, 29, 30, 31) and the respective evaluation module (30) is embodied to analyse the light reflexes such that the respective type of dish and/or all the dishes can be detected according to a predetermined light evaluation algorithm.
  12. Dishwasher according to claim 11, characterised in that the evaluation module (30) which is connected in each instance to the camera (22) is embodied to determine the number and/or the size of the light reflexes occurring on the dishes.
  13. Dishwasher according to one of claims 11 or 12 characterised in that the evaluation module (30) which is connected in each instance to the camera (22) is embodied to determine the ratio of the brightness of the light reflexes to the brightness of their background.
  14. Dishwasher according to one of claims 11 to 13, characterised in that the evaluation module (30) which is connected in each instance to the camera (22) is embodied to determine the brightness distribution within the light reflexes.
  15. Dishwasher according to one of claims 11 to 14, characterised in that the camera (22) is connected to an evaluation module (30) for detecting glassware.
  16. Dishwasher according to one of claims 11 to 15, characterised in that the camera (22) is arranged in the region of an upper rack (5).
  17. Dishwasher according to one of the preceding claims, characterised in that the evaluation module (31) for detecting the total quantity of dishes is connected to at least one sensor (23, 25) for detecting the quantity of wash water (S) adhering to the dishes.
  18. Dishwasher according to claim 17, characterised in that the sensor (23, 25) for detecting the quantity of wash water (S) adhering to the dishes is embodied as a sensor (25) for monitoring the rotational speed of a circulation pump (11).
  19. Dishwasher according to one of claims 17 or 18, characterised in that the sensor (23, 25) for detecting the quantity of wash water (S) adhering to the dishes is embodied as a sensor (23) for monitoring a level of the wash water (S) collecting in a lower region (10) of the wash tub (3).
  20. Dishwasher according to one of the preceding claims, characterised in that the evaluation module (31) for detecting the total quantity of dishes is connected to a sensor (24) for detecting the heating rate.
  21. Dishwasher according to one of the preceding claims, characterised in that the evaluation module (31) for detecting the total quantity of dishes is connected to a sensor (26) for detecting the weight of the dishes.
  22. Dishwasher according to one of the preceding claims, characterised in that the dish detection device (27) has a digital signal processor (32) for evaluating a signal of one of the sensors (20, 22, 23, 24, 25, 26).
EP10717130.8A 2009-05-29 2010-04-29 Dishwasher Active EP2434936B1 (en)

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WO2013037723A1 (en) 2011-09-14 2013-03-21 Meiko Maschinenbau Gmbh & Co. Kg Cleaning and disinfecting apparatus for treating containers for human excretions
US10206552B2 (en) * 2011-12-20 2019-02-19 Samsung Electronics Co., Ltd. Dishwasher and method for controlling the same
CN203430799U (en) * 2012-06-28 2014-02-12 德昌电机(深圳)有限公司 Water draining pump and washing device
US9924727B2 (en) * 2014-10-09 2018-03-27 Safe Foods Corporation Closed loop recycling system and dip tank for antimicrobial compounds
WO2017084715A1 (en) * 2015-11-19 2017-05-26 Electrolux Appliances Aktiebolag Estimating water fill rate in an appliance for washing and rinsing goods
WO2017108096A1 (en) * 2015-12-22 2017-06-29 Arcelik Anonim Sirketi A dishwasher and a method for the detection of the load in a rack of such dishwasher
IT201700078567A1 (en) * 2017-07-13 2019-01-13 Candy Spa Method for automatically evaluating the movement of an object within a washing area of a dishwasher machine.
DE102017212327A1 (en) * 2017-07-19 2019-01-24 BSH Hausgeräte GmbH Household dishwasher and method for operating a household dishwasher
DE102017212313A1 (en) * 2017-07-19 2019-01-24 BSH Hausgeräte GmbH Household dishwasher and method for operating a household dishwasher
DE102017212323A1 (en) * 2017-07-19 2019-01-24 BSH Hausgeräte GmbH Household dishwasher and method for operating a household dishwasher
DE102017212316A1 (en) * 2017-07-19 2019-01-24 BSH Hausgeräte GmbH Household dishwasher, system with household dishwasher and server and method of operating a household dishwasher
US10531781B2 (en) 2017-09-29 2020-01-14 Midea Group Co., Ltd. Dishwasher with discretely directable tubular spray elements
US10524634B2 (en) 2017-09-29 2020-01-07 Midea Group Co., Ltd. Dishwasher with combined liquid and air sprayers
DE102017126856A1 (en) * 2017-11-15 2019-05-16 Illinois Tool Works Inc. Dishwasher and method for cleaning items in a dishwasher
CN107865625A (en) * 2017-11-24 2018-04-03 佛山市顺德区美的洗涤电器制造有限公司 Water basin dish-washing machine and its control method of washing
CN110151082B (en) * 2018-02-12 2021-12-07 青岛海尔洗碗机有限公司 Control method of heat pump type dish washing machine and dish washing machine
US11071440B2 (en) 2018-09-14 2021-07-27 Midea Group Co., Ltd. Dishwasher with rack-mounted conduit return mechanism
US11000176B2 (en) 2018-09-14 2021-05-11 Midea Group Co., Ltd. Dishwasher with rotatable diverter valve
US10765291B2 (en) 2018-09-14 2020-09-08 Midea Group Co., Ltd. Dishwasher with check valve in rotatable docking port
US10631708B2 (en) 2018-09-14 2020-04-28 Midea Group Co., Ltd. Dishwasher with docking arrangement for elevation-adjustable rack
DE102019100181A1 (en) * 2019-01-07 2020-07-09 Miele & Cie. Kg Dishwasher, in particular household dishwasher
DE102019100190A1 (en) * 2019-01-07 2020-07-09 Miele & Cie. Kg Household appliance, in particular dishwasher
US11045066B2 (en) 2019-03-11 2021-06-29 Midea Group Co., Ltd. Dishwasher with keyed coupling to rack-mounted conduit
IT201900004605A1 (en) * 2019-03-27 2020-09-27 Candy Spa Dishwasher with optical device and lighting device
US11120594B2 (en) 2019-06-03 2021-09-14 International Business Machines Corporation Floor planning and placement of objects in a loading space
US11058281B2 (en) 2019-06-20 2021-07-13 Midea Group Co., Ltd. Dishwasher including rack position sensor to control capture of rack images by a camera
EP3788933A1 (en) 2019-09-05 2021-03-10 BSH Hausgeräte GmbH Method for controlling a home appliance
US11484183B2 (en) 2019-09-30 2022-11-01 Midea Group Co., Ltd. Dishwasher with image-based object sensing
US11191416B2 (en) 2019-09-30 2021-12-07 Midea Group Co., Ltd. Dishwasher with image-based position sensor
US11464389B2 (en) 2019-09-30 2022-10-11 Midea Group Co., Ltd. Dishwasher with image-based detergent sensing
US11026559B2 (en) * 2019-09-30 2021-06-08 Midea Group Co., Ltd. Dishwasher with image-based fluid condition sensing
US11259681B2 (en) 2019-09-30 2022-03-01 Midea Group Co., Ltd Dishwasher with image-based diagnostics
US11399690B2 (en) 2019-09-30 2022-08-02 Midea Group Co., Ltd. Dishwasher with cam-based position sensor
US11045065B2 (en) * 2019-11-04 2021-06-29 Haier Us Appliance Solutions, Inc. Dishwashing appliances with hot start features and related methods
US11202550B2 (en) 2019-11-20 2021-12-21 Midea Group Co., Ltd. Dishwasher thermal imaging system
US11185209B2 (en) 2019-11-20 2021-11-30 Midea Group Co., Ltd. Dishwasher steam generator
CN112826396A (en) * 2019-11-25 2021-05-25 魏宏帆 Tableware cleaning device and tableware cleaning method
US11497374B2 (en) 2020-02-19 2022-11-15 Midea Group Co., Ltd. Dishwasher with wall-mounted rotatable conduit
DE102020202502A1 (en) 2020-02-27 2021-09-02 BSH Hausgeräte GmbH System with a dishwasher and method for operating a dishwasher
DE102020202501A1 (en) 2020-02-27 2021-09-02 BSH Hausgeräte GmbH System with a dishwasher and method for operating a dishwasher
TR202010950A2 (en) * 2020-07-10 2022-01-21 Arçeli̇k Anoni̇m Şi̇rketi̇ A DISHWASHER WITH A FAILURE CONTROL SYSTEM
US11412912B2 (en) 2020-09-21 2022-08-16 Midea Group Co., Ltd. Dishwasher with tubular spray element slip ring alignment
US11484180B2 (en) 2020-11-11 2022-11-01 Midea Group Co., Ltd. Dishwasher with tubular spray element including multiple selectable spray patterns
US11825999B2 (en) 2021-02-17 2023-11-28 Haier Us Appliance Solutions, Inc. Dishwasher appliance with camera for basket detection
EP4056098A1 (en) * 2021-03-10 2022-09-14 Vestel Elektronik Sanayi ve Ticaret A.S. Dishwashing machine and method of operating a dishwashing machine
US11826001B2 (en) 2022-02-15 2023-11-28 Midea Group Co., Ltd. Dishwasher with tubular spray element including elongated metal tube and retaining tab for mounting support member thereto
CN115318714A (en) * 2022-07-27 2022-11-11 广西电网有限责任公司贵港供电局 Safety tool cleaning device and using method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0793939A1 (en) * 1996-03-04 1997-09-10 ZELTRON S.p.A. Washing machine
WO2006015934A1 (en) * 2004-07-23 2006-02-16 BSH Bosch und Siemens Hausgeräte GmbH Method for detecting the load of items to be washed, and dishwasher machine
WO2009114346A1 (en) * 2008-03-14 2009-09-17 Premark Feg L.L.C. Conveyor dishwasher and method of operating a conveyor dishwasher
WO2009126482A1 (en) * 2008-04-07 2009-10-15 Premark Feg L.L.C. Dishwasher and method for cleaning wash ware

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19812230A1 (en) * 1998-03-20 1999-09-23 Aeg Hausgeraete Gmbh Dishwasher and method for operating the same
DE19959686A1 (en) * 1999-12-10 2001-06-13 Bsh Bosch Siemens Hausgeraete Dishwasher with a weight detection device
DE10048088A1 (en) * 2000-09-28 2002-04-11 Miele & Cie Method for recognizing the loading of a program-controlled dishwasher with dishes and a dishwasher for carrying out the method
DE10246016A1 (en) * 2002-10-02 2004-04-15 Electrolux Home Products Corporation N.V. Method of detecting dishwasher load based on measuring the quantity of washing fluid draining from dishes during washing
DE10255380A1 (en) * 2002-11-27 2004-06-09 BSH Bosch und Siemens Hausgeräte GmbH System for recognizing the amount of dishes in the dishwasher rinsing container and dishwasher

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0793939A1 (en) * 1996-03-04 1997-09-10 ZELTRON S.p.A. Washing machine
WO2006015934A1 (en) * 2004-07-23 2006-02-16 BSH Bosch und Siemens Hausgeräte GmbH Method for detecting the load of items to be washed, and dishwasher machine
WO2009114346A1 (en) * 2008-03-14 2009-09-17 Premark Feg L.L.C. Conveyor dishwasher and method of operating a conveyor dishwasher
WO2009126482A1 (en) * 2008-04-07 2009-10-15 Premark Feg L.L.C. Dishwasher and method for cleaning wash ware

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US10080477B2 (en) 2018-09-25
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US20120060875A1 (en) 2012-03-15
WO2010136294A2 (en) 2010-12-02
DE102009023252A1 (en) 2010-12-02

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