EP3654817B1 - Household dishwasher and method for operating a household dishwasher - Google Patents

Household dishwasher and method for operating a household dishwasher Download PDF

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Publication number
EP3654817B1
EP3654817B1 EP18737906.0A EP18737906A EP3654817B1 EP 3654817 B1 EP3654817 B1 EP 3654817B1 EP 18737906 A EP18737906 A EP 18737906A EP 3654817 B1 EP3654817 B1 EP 3654817B1
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EP
European Patent Office
Prior art keywords
washing
optical sensor
household dishwasher
evaluation unit
program
Prior art date
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EP18737906.0A
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German (de)
French (fr)
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EP3654817A1 (en
Inventor
Maria TERRÁDEZ ALEMANY
Kai Paintner
Matthias HECKES
Daniel HITZLER
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BSH Hausgeraete GmbH
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BSH Hausgeraete GmbH
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0049—Detection or prevention of malfunction, including accident prevention
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0063—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control using remote monitoring or controlling of the dishwasher operation, e.g. networking systems
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/34—Other automatic detections
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output 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
    • A47L2501/28—Machine starting, e.g. normal start, restart after electricity cut-off or start scheduling
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output 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
    • A47L2501/32—Stopping or disabling machine operation, including disconnecting the machine from a network, e.g. from an electrical power supply

Definitions

  • the present invention relates to a domestic dishwasher and a method for operating a domestic dishwasher.
  • Conventional household dishwashers have, for example, an automatic safety mechanism that ensures that the household dishwasher is only started when the user has made sure that a washing program can be carried out safely. In the case of small children and pets in particular, there is a risk that they will climb into the rinsing compartment of a household dishwasher.
  • domestic dishwashers are also known which enable the start to be triggered remotely, for example via a corresponding app on the user's smartphone.
  • This remote release requires a similar activation: if the user wants to use this function, he must activate the remote release function when closing the door. This is done, for example, by actuating a corresponding operating element. If the door is then opened again, the remote release function is deactivated again. If the user then forgets to operate the corresponding operating element again, the disadvantage is that the remote release function is not available.
  • WO 2011/039245 A2 discloses a dishwasher having a sensor that detects whether an object in the wash cavity of the dishwasher is obstructing or blocking the opening of a detergent dispenser cover. For this purpose, the area covered by the cover when opened is monitored by the sensor. If it is determined that an object is blocking the opening, the flushing process will not start.
  • U.S. 2010/126526 A1 discloses a dishwasher with a safety device configured to determine whether a dish rack is positioned as intended in the dishwasher. If this is not the case, the start of a dishwashing program can be prevented.
  • EP 2 048 274 A1 describes a household appliance with a detection system of the presence of a living being.
  • a household dishwasher is proposed with a control device for carrying out a washing program from a number of washing programs for washing items to be washed arranged in a washing chamber.
  • the domestic dishwasher has an optical sensor for detecting an optical sensor signal the rinsing chamber and an evaluation unit.
  • the evaluation unit is set up to determine a safe operating state of the domestic dishwasher as a function of the detected optical sensor signal.
  • the domestic dishwasher has, for example, a washing container with a base, a cover, a rear wall and two side walls.
  • the washing container thus forms, for example, a cuboid open on one side, the opening being referred to as the loading opening, for example, and a door being provided by means of which the loading opening can be closed.
  • the door and the washing compartment form, in particular, the washing chamber in which, for example, one or more washware receptacles for receiving washware are arranged so that they can be pulled out.
  • different functional components of the domestic dishwasher are arranged in the washing chamber, such as one or more spray arms.
  • the control device can be implemented in terms of hardware and/or software.
  • the control device can be designed, for example, as a computer or as a microprocessor.
  • the control device can be embodied as a computer program product, as a function, as a routine, as part of a program code or as an executable object.
  • control device includes a memory unit for storing the number of washing programs.
  • the individual wash programs of the number differ, for example, in a sequence of sub-program steps, such as a pre-wash, a cleaning, a final rinse and/or a drying, as well as in one or more parameter values.
  • Parameter values include a washing liquor temperature in individual sub-program steps, a duration of individual sub-program steps, a pump speed, an amount of water and an amount of cleaning agent added and/or different times at which cleaning agent is added.
  • the optical sensor is designed in particular as an optoelectronic sensor that provides an analog electrical signal depending on an optical signal as the optical sensor signal. This offers the advantage that the optical sensor can be manufactured and used on a microchip in an integrated design and thus in a space- and material-saving and cost-effective manner. Furthermore, the analog electrical signal can be converted into a digital signal with little effort, for example by means of an A/D converter, and then processed digitally.
  • the optical sensor is arranged in the domestic dishwasher in such a way that it detects an optical sensor signal of the washing chamber of the domestic dishwasher. This is fulfilled, for example, if there is a line of sight from the optical sensor to the washing chamber.
  • the optical sensor is arranged on the ceiling of the washing compartment, on the rear wall of the washing compartment and/or on a door of the household dishwasher, which forms the washing chamber with the washing compartment when closed.
  • several optical sensors are used, with each optical sensor detecting an optical sensor signal of a partial area of the washing chamber assigned to the respective optical sensor.
  • the optical sensor signal detected by the optical sensor therefore also includes in particular all items and/or objects arranged in or located in the washing chamber. These are, in particular, the items to be washed and the items to be washed arranged therein. If a child and/or a pet has climbed into the washing container, the child and/or the pet is also included in the optical sensor signal.
  • the optical sensor is set up in particular to detect the optical sensor signal over a wide spectral range that is not limited to the optical spectral range.
  • the optical sensor includes, for example, a camera, in particular a digital camera, for example with a CCD sensor (CCD: Charged Coupled Device).
  • a CCD sensor Charged Coupled Device
  • the camera captures an image and/or an image sequence of the component.
  • a lighting device can be provided as a support, which in particular illuminates the entire washing chamber.
  • This lighting device can in particular as a narrow-band light source such as a laser.
  • the lighting device can be designed as a broadband light source, such as a light bulb and/or a flash unit.
  • the evaluation unit can be implemented in terms of hardware and/or software.
  • the respective evaluation unit can be designed, for example, as a computer or as a microprocessor.
  • the evaluation unit can be embodied as a computer program product, as a function, as a routine, as part of a program code or as an executable object.
  • the evaluation unit can be designed as part of the control device.
  • the evaluation unit is set up to determine a safe operating state of the domestic dishwasher as a function of the detected optical sensor signal. For example, the evaluation unit processes and/or analyzes the recorded optical sensor signal in such a way that it determines safety-relevant circumstances for the operation and/or for starting and executing the washing program. This ensures that the domestic dishwasher is in a safe operating state. For example, the evaluation unit determines whether there is a living being, in particular a child or a pet, in the washing chamber. The evaluation unit then determines that the operating state of the domestic dishwasher is not safe. In particular, if the evaluation unit determines an unsafe operating state of the household dishwasher, it is set up to prevent the washing program from starting, to output information to the user and/or to carry out a further predetermined action.
  • the additional predetermined action can include, for example, automatic door opening and/or triggering of an emergency off switch of the household dishwasher.
  • the evaluation unit is set up to carry out a predetermined action depending on the determined safe operating state.
  • the predetermined action includes, in particular, outputting information to the user of the domestic dishwasher.
  • the information can be presented both visually and acoustically and/or haptically, for example by means of a display element, by means of a loudspeaker and/or by means of a vibration unit.
  • the information is transmitted by means of a communication unit to an external control device, such as the user's smartphone, and is processed and output there by a suitable app.
  • the evaluation unit is set up to block or release a start of the washing program depending on the determined safe operating state.
  • the evaluation unit is set up to determine a living being in the washing chamber as a function of the detected optical sensor signal.
  • the optical sensor includes an infrared sensor.
  • larger creatures such as children and pets emit infrared radiation.
  • This infrared radiation can be detected by the infrared sensor.
  • the detected optical sensor signal then has a corresponding form, so that the evaluation unit can deduce the presence of a living being. If the evaluation unit detects a living being in the washing chamber, this corresponds in particular to an unsafe operating state.
  • the evaluation unit is set up to block the start of the washing program if a creature is detected in the washing chamber.
  • the optical sensor comprises an optical movement sensor, with the evaluation unit being set up to determine a movement in the washing chamber.
  • the movement sensor is provided in particular to support the determination of the safe operating state if it is used at times when no dishwashing program is being carried out.
  • the movement sensor is also suitable, for example, for a proper movement during the execution of a dishwashing program of the spray arms of the dishwasher.
  • the optical motion sensor therefore fulfills a dual function here.
  • a combination of different sensor types can maximize security in determining the secure operating state.
  • the evaluation unit is set up to block the start of the washing program when a movement is detected in the washing chamber.
  • the household dishwasher has an illumination device for illuminating the washing chamber when the optical sensor signal is detected.
  • the optical sensor includes a camera, the optical sensor signal including an image and/or a video of the washing chamber.
  • the evaluation unit is set up to carry out an image analysis of the captured image and/or video.
  • the domestic dishwasher has a receiving unit for receiving a start signal from an external control unit for remotely starting the washing program.
  • the evaluation unit is set up to block or release the start of the dishwashing program initiated by the start signal received, depending on the determined safe operating state.
  • the receiving unit is designed in particular as a modem and/or a network adapter and is set up to receive the start signal by means of a network, such as a LAN, a WLAN and/or a cellular network.
  • the external control unit is designed in particular as a smartphone on which a corresponding app is running.
  • the receiving unit can also be designed for bidirectional communication. This means in particular that the receiving unit can also be set up to send data.
  • Blocking or enabling the start can be understood, for example, as meaning that the evaluation unit intercepts the received start signal even before the control device.
  • the control device when it receives a start signal, first queries the safe operating state from the evaluation unit and, depending on the response, carries out the start or aborts it.
  • the household dishwasher has an automatic dosing system which has a storage container for holding a supply of cleaning agent and which is set up to automatically add cleaning agent to the washing chamber while the washing program is being carried out.
  • This embodiment is particularly advantageous for a remote start function, since it allows the user to select from different wash programs while on the move, which, for example, require different detergents.
  • a method for operating a domestic dishwasher with a control device for carrying out a washing program from a number of washing programs for washing items to be washed arranged in a washing chamber is proposed.
  • a start signal for starting the washing program is detected by receiving a start signal sent by an external control unit.
  • a user of the household dishwasher uses a remote start function for this purpose, with the start signal being transmitted from the user's smartphone to the household dishwasher.
  • an optical sensor signal from the washing chamber is detected by means of an optical sensor.
  • a living being is detected in the washing chamber.
  • a safe operating state of the domestic dishwasher is determined by an evaluation unit as a function of the living being determined. The start of the dishwashing program initiated by the start signal received is then blocked or enabled.
  • This method advantageously makes it possible to automatically and at all times ensure safe operation of the domestic dishwasher.
  • the detected optical sensor signal is transmitted to a mobile device, in particular a smartphone, and/or to a server, such as a backend.
  • the mobile device and/or the server are designed in particular as the evaluation unit and are set up to determine the safe operating state as a function of the transmitted sensor signal.
  • the safe operating state can be determined on a mobile device, in particular by an app running on the mobile device.
  • a start of the washing program is either enabled or blocked by the evaluation unit depending on the detected optical sensor signal of the washing chamber.
  • the evaluation unit carries out as a function of the detected optical sensor signal and/or the ascertained safe operating state.
  • a computer program product such as a computer program means
  • a server in a network, for example, as a storage medium such as a memory card, USB stick, CD-ROM, DVD, or in the form of a downloadable file. This can be done, for example, in a wireless communication network by transferring a corresponding file with the computer program product or the computer program means.
  • FIG. 1 shows a schematic perspective view of an embodiment of a domestic dishwasher
  • FIG. 2 shows a schematic side view of a further exemplary embodiment of a domestic dishwasher.
  • FIG. 3 shows a schematic block diagram of an exemplary method for operating a domestic dishwasher.
  • the domestic dishwasher 1 shows a schematic perspective view of an exemplary embodiment of a domestic dishwasher 1.
  • the domestic dishwasher 1 comprises a washing container 2, which can be closed by a door 3, which is in particular watertight.
  • a sealing device (not shown) can be provided between the door 3 and the washing container 2 .
  • the washing compartment 2 is preferably cuboid.
  • the washing compartment 2 can be arranged in a housing of the domestic dishwasher 1 .
  • the washing container 2 and the door 3 can form a washing chamber 4 for washing items to be washed.
  • Door 3 is in the 1 shown in their open position.
  • the door 3 can be closed or opened by pivoting about a pivot axis 5 provided at a lower end of the door 3 .
  • a loading opening 6 of the washing compartment 2 can be closed or opened.
  • the washing compartment 2 has a base 7, a cover 8 arranged opposite the base 7, a rear wall 9 arranged opposite the closed door 3 and two rear walls located opposite one another arranged side walls 10, 11 on.
  • the bottom 7, the top 8, the rear wall 9 and the side walls 10, 11 can be made from a stainless steel sheet, for example.
  • the bottom 7 can be made of a plastic material.
  • the domestic dishwasher 1 also has at least one washware receptacle 12, 13, 14.
  • washware holder 12 being a lower washware holder or a lower rack
  • washware holder 13 being an upper washware holder or an upper rack
  • washware holder 14 being a cutlery drawer.
  • the washing items receptacles 12, 13, 14 are arranged one above the other in the washing compartment 2.
  • Each washware holder 12 to 14 can be moved either into or out of the washing compartment 2 .
  • each washware receptacle 12, 13, 14 can be pushed into the washing compartment 2 in an insertion direction E and pulled out of the washing compartment 2 in a pull-out direction A counter to the insertion direction E.
  • the domestic dishwasher 1 also has a control device 100 and an evaluation unit 120 which are arranged on the door 3 .
  • An optical sensor 110 embodied as a camera is arranged on the ceiling 8 in such a way that it is set up to detect an optical sensor signal of the washing chamber 4 and thus of all components and objects contained in the washing chamber 4 .
  • the broken lines below the camera 110 indicate a detection range of the camera 110 .
  • the combination of the camera 110 and the evaluation unit 120 advantageously makes it possible to determine a safe operating state of the domestic dishwasher 1 at any time and automatically.
  • FIG 2 shows a schematic side view of a further exemplary embodiment of a domestic dishwasher 1, for example a variant of the domestic dishwasher 1 of FIG 1 .
  • the door 3 is closed, so that the rinsing compartment 2 and the door 3 form the closed rinsing chamber 4 .
  • the household dishwasher 1 of 2 has all the characteristics of the household dishwasher 1 with many of the features omitted for clarity.
  • the optical sensor 110 is arranged on the ceiling 8 of the washing compartment 2 .
  • the domestic dishwasher 1 has an illumination device 130 and a receiving unit 150 .
  • An external control unit 160 which is designed as a smartphone, for example, is shown next to the domestic dishwasher 1.
  • the smartphone 160 is set up to establish a communication connection with the receiving unit 150, for example via a mobile network.
  • a user can use the smartphone 160 to transmit a start signal S to the receiving unit 150 .
  • the start signal S prompts the control device 100 of the domestic dishwasher 1 to start a washing program.
  • the start signal S can also include a selection of the washing program from a number of washing programs.
  • a living being 140 for example a dog owned by the user, in the washing chamber 4.
  • the dog 140 jumped into the washing chamber 4 at a moment unobserved by the user and the user opened the door 3 of the rinsing tank 2 closed without noticing that the dog 140 is in the rinsing tank 4.
  • the user decides to carry out a washing program while on the go. To do this, he opens the corresponding app on his smartphone 160, selects a dishwashing program and confirms the selection.
  • the smartphone 160 then sends the corresponding start signal S to the receiving unit 150 of the household dishwasher 1. This receives the start signal S and transmits it, for example, to the control device 100.
  • the control device 100 is set up to ensure the safe operating state of the household dishwasher 1 before the start of the washing program consider.
  • the optical sensor 110 detects an optical sensor signal of the rinsing chamber 4, in the example shown with the support of the lighting device 130, which illuminates the rinsing chamber 4 while the optical sensor signal is being detected.
  • the optical sensor 110 transmits the detected optical sensor signal to the evaluation unit 120, which then determines the safe operating state based on the detected optical sensor signal.
  • the evaluation unit 120 ascertains that the dog 140 is in the rinsing chamber 4 .
  • the operating state of the domestic dishwasher 1 is therefore uncertain, and the evaluation unit 120 determines the operating state as unsafe, which is why the evaluation unit 120 prevents the start of the washing program.
  • the control device 100 will therefore not carry out the start.
  • provision can furthermore be made for the evaluation unit 120 to carry out an automatic door opening as a predetermined action, so that the dog 140 is freed from the rinsing chamber 4 .
  • Information can also be transmitted to the user.
  • the receiving unit 150 is set up in particular for bidirectional communication with the external control unit 160 .
  • FIG 3 shows a schematic block diagram of an exemplary embodiment of a method for operating a domestic dishwasher 1, for example the domestic dishwasher 1 of FIG 1 or the 2 .
  • a start signal S for starting a washing program is detected.
  • the start signal S can be received in particular by an external control unit 160, such as a smartphone.
  • an optical sensor 110 detects an optical sensor signal of the washing chamber 4.
  • an evaluation unit 120 determines a safe operating state of the domestic dishwasher 1 as a function of the detected optical sensor signal. This means in particular that the evaluation unit 120 processes and checks the detected optical sensor signal.
  • the evaluation unit 120 determines that a safe operating state is guaranteed. Then the washing program can be carried out as intended. In other situations it may be that the evaluation unit 120 determines that the safe operating state is not guaranteed. It can then be provided that the evaluation unit 120 blocks the start of the washing program. In this case, it can also be provided that an optical sensor signal is recorded again at predetermined time intervals and the safe operating state is determined. As soon as the safe operating condition is given, the washing program can be started if the start signal S is then still valid.

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Description

Die vorliegende Erfindung betrifft eine Haushaltsgeschirrspülmaschine sowie ein Verfahren zum Betreiben einer Haushaltsgeschirrspülmaschine.The present invention relates to a domestic dishwasher and a method for operating a domestic dishwasher.

Herkömmliche Haushaltsgeschirrspülmaschinen weisen beispielsweise eine Sicherheitsautomatik auf, die sicherstellt, dass die Haushaltsgeschirrspülmaschine nur dann gestartet wird, wenn sich der Nutzer vergewissert hat, dass ein Spülprogramm gefahrlos durchgeführt werden kann. Insbesondere bei Kleinkindern und Haustieren besteht die Gefahr, dass diese in den Spülbehälter einer Haushaltsgeschirrspülmaschine klettern. Um zu verhindern, dass ein programmierter Start einer Haushaltsgeschirrspülmaschine automatisch durchgeführt wird, insbesondere wenn der Nutzer nicht anwesend ist, ist beispielsweise vorgesehen, dass der Start unterbunden wird, wenn die Tür nach der Programmierung des Starts nicht innerhalb einer vorbestimmten Zeitspanne geschlossen wird.Conventional household dishwashers have, for example, an automatic safety mechanism that ensures that the household dishwasher is only started when the user has made sure that a washing program can be carried out safely. In the case of small children and pets in particular, there is a risk that they will climb into the rinsing compartment of a household dishwasher. In order to prevent a programmed start of a household dishwasher from being carried out automatically, in particular when the user is not present, provision is made, for example, for the start to be prevented if the door is not closed within a predetermined period of time after the start has been programmed.

Es sind auch Haushaltsgeschirrspülmaschinen bekannt, die eine Fernauslösung des Starts ermöglichen, beispielsweise über eine entsprechende App auf dem Smartphone des Nutzers. Diese Fernauslösung bedarf einer ähnlichen Aktivierung: Der Nutzer muss, wenn er diese Funktion nutzen will, beim Schließen der Tür die Fernauslöse-Funktion aktivieren. Dies erfolgt beispielsweise durch Betätigung eines entsprechenden Bedienelements. Wird die Tür danach nochmals geöffnet, so wird die Fernauslöse-Funktion jedoch wieder deaktiviert. Wenn der Nutzer dann vergisst, das entsprechende Bedienelement nochmals zu betätigen, steht die Fernauslöse-Funktion daher nachteiligerweise nicht zur Verfügung.Domestic dishwashers are also known which enable the start to be triggered remotely, for example via a corresponding app on the user's smartphone. This remote release requires a similar activation: if the user wants to use this function, he must activate the remote release function when closing the door. This is done, for example, by actuating a corresponding operating element. If the door is then opened again, the remote release function is deactivated again. If the user then forgets to operate the corresponding operating element again, the disadvantage is that the remote release function is not available.

WO 2011/039245 A2 offenbart eine Geschirrspülmaschine mit einem Sensor, der erfasst, ob ein Objekt in dem Spülraum der Geschirrspülmaschine das Öffnen einer Abdeckung einer Spülmittelzugabe behindert oder blockiert. Hierzu wird der Bereich, den die Abdeckung beim Öffnen überstreicht, durch den Sensor überwacht. Wenn ermittelt wird, dass ein Objekt das Öffnen blockiert, wird der Spülvorgang nicht gestartet. WO 2011/039245 A2 discloses a dishwasher having a sensor that detects whether an object in the wash cavity of the dishwasher is obstructing or blocking the opening of a detergent dispenser cover. For this purpose, the area covered by the cover when opened is monitored by the sensor. If it is determined that an object is blocking the opening, the flushing process will not start.

US 2010/126526 A1 offenbart eine Geschirrspülmaschine mit einer Sicherheitseinrichtung, die dazu eingerichtet ist, festzustellen, ob ein Geschirrkorb in der Spülmaschine wie vorgesehen angeordnet ist. Wenn dies nicht der Fall ist, kann der Start eines Spülprogramms unterbunden werden. U.S. 2010/126526 A1 discloses a dishwasher with a safety device configured to determine whether a dish rack is positioned as intended in the dishwasher. If this is not the case, the start of a dishwashing program can be prevented.

EP 2 048 274 A1 beschreibt ein Haushaltsgerät mit einem Detektionssystem der Anwesenheit eines Lebewesens. EP 2 048 274 A1 describes a household appliance with a detection system of the presence of a living being.

Vor diesem Hintergrund besteht eine Aufgabe der vorliegenden Erfindung darin, eine verbesserte Haushaltsgeschirrspülmaschine zu schaffen.Against this background, it is an object of the present invention to provide an improved household dishwasher.

Demgemäß wird eine Haushaltsgeschirrspülmaschine mit einer Steuerungsvorrichtung zum Durchführen eines Spülprogramms aus einer Anzahl von Spülprogrammen zum Spülen von in einer Spülkammer angeordnetem Spülgut vorgeschlagen. Die Haushaltsgeschirrspülmaschine weist einen optischen Sensor zum Erfassen eines optischen Sensorsignals der Spülkammer und eine Auswerteeinheit auf. Die Auswerteeinheit ist dazu eingerichtet, in Abhängigkeit des erfassten optischen Sensorsignals einen sicheren Betriebszustand der Haushaltsgeschirrspülmaschine zu ermitteln.Accordingly, a household dishwasher is proposed with a control device for carrying out a washing program from a number of washing programs for washing items to be washed arranged in a washing chamber. The domestic dishwasher has an optical sensor for detecting an optical sensor signal the rinsing chamber and an evaluation unit. The evaluation unit is set up to determine a safe operating state of the domestic dishwasher as a function of the detected optical sensor signal.

Mit dieser Haushaltsgeschirrspülmaschine ist es vorteilhaft möglich, einen sicheren Start und Durchlauf eines Spülprogramms jederzeit und automatisch gewährleisten. Damit kann beispielsweise eine Fernstartfunktion für die Haushaltsgeschirrspülmaschine ohne Einschränkungen und ohne Sicherheitsrisiken bereitgestellt werden.With this household dishwasher, it is advantageously possible to automatically and at any time ensure a reliable start and run of a washing program. In this way, for example, a remote start function for the household dishwasher can be provided without restrictions and without any safety risks.

Die Haushaltsgeschirrspülmaschine weist beispielsweise einen Spülbehälter mit einem Boden, einer Decke, einer Rückwand und zwei Seitenwänden auf. Der Spülbehälter bildet damit beispielsweise einen einseitig offenen Quader, wobei die Öffnung beispielsweise als Beschickungsöffnung bezeichnet wird und wobei eine Tür vorgesehen ist, mittels welcher die Beschickungsöffnung verschließbar ist. Bei geschlossener Tür bilden die Tür und der Spülbehälter insbesondere die Spülkammer, in welcher beispielsweise eine oder mehrere Spülgutaufnahmen zum Aufnehmen von Spülgut ausziehbar angeordnet sind. Ferner sind in der Spülkammer beispielsweise unterschiedliche funktionelle Bauteile der Haushaltsgeschirrspülmaschine angeordnet, wie beispielsweise ein oder mehrere Sprüharme.The domestic dishwasher has, for example, a washing container with a base, a cover, a rear wall and two side walls. The washing container thus forms, for example, a cuboid open on one side, the opening being referred to as the loading opening, for example, and a door being provided by means of which the loading opening can be closed. When the door is closed, the door and the washing compartment form, in particular, the washing chamber in which, for example, one or more washware receptacles for receiving washware are arranged so that they can be pulled out. Furthermore, for example, different functional components of the domestic dishwasher are arranged in the washing chamber, such as one or more spray arms.

Die Steuerungsvorrichtung kann hardwaretechnisch und/oder auch softwaretechnisch implementiert sein. Bei einer hardwaretechnischen Implementierung kann die Steuerungsvorrichtung zum Beispiel als Computer oder als Mikroprozessor ausgebildet sein. Bei einer softwaretechnischen Implementierung kann die Steuerungsvorrichtung als Computerprogrammprodukt, als eine Funktion, als eine Routine, als Teil eines Programmcodes oder als ausführbares Objekt ausgebildet sein.The control device can be implemented in terms of hardware and/or software. In the case of a hardware implementation, the control device can be designed, for example, as a computer or as a microprocessor. In the case of a software implementation, the control device can be embodied as a computer program product, as a function, as a routine, as part of a program code or as an executable object.

Beispielsweise umfasst die Steuerungsvorrichtung eine Speichereinheit zum Speichern der Anzahl an Spülprogrammen. Die einzelnen Spülprogramme der Anzahl unterscheiden sich beispielsweise in einer Abfolge von Teilprogrammschritten, wie ein Vorspülen, ein Reinigen, ein Klarspülen und/oder ein Trocknen, sowie in einem oder mehreren Parameterwerten. Parameterwerte umfassen eine Spülflottentemperatur in einzelnen Teilprogrammschritten, eine Dauer einzelner Teilprogrammschritte, eine Pumpendrehzahl, eine Wassermenge sowie ein Menge an zugegebenem Reinigungsmittel und/oder unterschiedliche Zeitpunkte des Zugebens von Reinigungsmittel.For example, the control device includes a memory unit for storing the number of washing programs. The individual wash programs of the number differ, for example, in a sequence of sub-program steps, such as a pre-wash, a cleaning, a final rinse and/or a drying, as well as in one or more parameter values. Parameter values include a washing liquor temperature in individual sub-program steps, a duration of individual sub-program steps, a pump speed, an amount of water and an amount of cleaning agent added and/or different times at which cleaning agent is added.

Der optische Sensor ist insbesondere als ein optoelektronischer Sensor ausgebildet, der ein analoges elektrisches Signal in Abhängigkeit eines optischen Signals als das optische Sensorsignal bereitstellt. Dies bietet den Vorteil, dass der optische Sensor auf einem Mikrochip in integrierter Bauweise und damit platz- und materialsparend sowie kostengünstig hergestellt und verwendet werden kann. Ferner lässt sich das analoge elektrische Signal mit geringem Aufwand, beispielsweise mittels eines A/D-Wandlers, in ein digitales Signal wandeln und anschließend digital verarbeiten.The optical sensor is designed in particular as an optoelectronic sensor that provides an analog electrical signal depending on an optical signal as the optical sensor signal. This offers the advantage that the optical sensor can be manufactured and used on a microchip in an integrated design and thus in a space- and material-saving and cost-effective manner. Furthermore, the analog electrical signal can be converted into a digital signal with little effort, for example by means of an A/D converter, and then processed digitally.

Der optische Sensor ist derart in der Haushaltsgeschirrspülmaschine angeordnet, dass dieser ein optisches Sensorsignal der Spülkammer der Haushaltsgeschirrspülmaschine erfasst. Das ist beispielsweise erfüllt, wenn eine Sichtlinie von dem optischen Sensor zu der Spülkammer vorhanden ist. Zum Beispiel ist der optische Sensor an der Decke des Spülbehälters, an der Rückwand des Spülbehälters und/oder an einer Tür der Haushaltsgeschirrspülmaschine, welche im geschlossenen Zustand mit dem Spülbehälter die Spülkammer bildet, angeordnet. Ferner kann vorgesehen sein, mehrere optische Sensoren zu verwenden, wobei ein jeweiliger optischer Sensor ein optisches Sensorsignal eines dem jeweiligen optischen Sensor zugeordneten Teilbereichs der Spülkammer erfasst. Das von dem optischen Sensor erfasste optische Sensorsignal umfasst daher insbesondere auch alle in der Spülkammer angeordneten oder sich darin befindenden Gegenstände und/oder Objekte. Dies sind insbesondere die Spülgutaufnahmen sowie darin angeordnetes Spülgut. Sollte ein Kind und/oder ein Haustier in den Spülbehälter geklettert sein, so ist auch das Kind und/oder das Haustier von dem optischen Sensorsignal umfasst.The optical sensor is arranged in the domestic dishwasher in such a way that it detects an optical sensor signal of the washing chamber of the domestic dishwasher. This is fulfilled, for example, if there is a line of sight from the optical sensor to the washing chamber. For example, the optical sensor is arranged on the ceiling of the washing compartment, on the rear wall of the washing compartment and/or on a door of the household dishwasher, which forms the washing chamber with the washing compartment when closed. Furthermore, it can be provided that several optical sensors are used, with each optical sensor detecting an optical sensor signal of a partial area of the washing chamber assigned to the respective optical sensor. The optical sensor signal detected by the optical sensor therefore also includes in particular all items and/or objects arranged in or located in the washing chamber. These are, in particular, the items to be washed and the items to be washed arranged therein. If a child and/or a pet has climbed into the washing container, the child and/or the pet is also included in the optical sensor signal.

Der optische Sensor ist insbesondere dazu eingerichtet, das optische Sensorsignal über einen breiten spektralen Bereich, der nicht auf den optischen Spektralbereich beschränkt ist, zu erfassen.The optical sensor is set up in particular to detect the optical sensor signal over a wide spectral range that is not limited to the optical spectral range.

Der optische Sensor umfasst beispielsweise eine Kamera, insbesondere eine Digitalkamera, beispielsweise mit einem CCD-Sensor (CCD: Charged Coupled Device). Die Kamera erfasst beispielsweise ein Bild und/oder eine Bildfolge des Bauteils.The optical sensor includes, for example, a camera, in particular a digital camera, for example with a CCD sensor (CCD: Charged Coupled Device). For example, the camera captures an image and/or an image sequence of the component.

Unterstützend kann eine Beleuchtungseinrichtung vorgesehen sein, welche insbesondere die gesamte Spülkammer beleuchtet. Diese Beleuchtungseinrichtung kann insbesondere als eine schmalbandige Lichtquelle, wie beispielsweise ein Laser, ausgebildet sein. Alternativ kann die Beleuchtungseinrichtung als eine breitbandige Lichtquelle, wie eine Glühbirne und/oder ein Blitzgerät ausgebildet sein.A lighting device can be provided as a support, which in particular illuminates the entire washing chamber. This lighting device can in particular as a narrow-band light source such as a laser. Alternatively, the lighting device can be designed as a broadband light source, such as a light bulb and/or a flash unit.

Die Auswerteeinheit kann hardwaretechnisch und/oder auch softwaretechnisch implementiert sein. Bei einer hardwaretechnischen Implementierung kann die jeweilige Einheit Auswerteeinheit zum Beispiel als Computer oder als Mikroprozessor ausgebildet sein. Bei einer softwaretechnischen Implementierung kann die Auswerteeinheit als Computerprogrammprodukt, als eine Funktion, als eine Routine, als Teil eines Programmcodes oder als ausführbares Objekt ausgebildet sein. Insbesondere kann die Auswerteeinheit als ein Teil der Steuerungsvorrichtung ausgebildet sein.The evaluation unit can be implemented in terms of hardware and/or software. In the case of a hardware implementation, the respective evaluation unit can be designed, for example, as a computer or as a microprocessor. In the case of a software implementation, the evaluation unit can be embodied as a computer program product, as a function, as a routine, as part of a program code or as an executable object. In particular, the evaluation unit can be designed as part of the control device.

Die Auswerteinheit ist dazu eingerichtet, in Abhängigkeit des erfassten optischen Sensorsignals einen sicheren Betriebszustand der Haushaltsgeschirrspülmaschine zu ermitteln. Beispielsweise verarbeitet und/oder analysiert die Auswerteeinheit das erfasste optische Sensorsignal so, dass sie sicherheitsrelevante Umstände für den Betrieb und/oder ein Starten und Durchführen des Spülprogramms ermittelt. Dadurch ist ein sicherer Betriebszustand der Haushaltsgeschirrspülmaschine gewährleistet. Beispielsweise ermittelt die Auswerteeinheit, ob sich ein Lebewesen, insbesondere ein Kind oder ein Haustier, in der Spülkammer befindet. Dann ermittelt die Auswerteeinheit, dass der Betriebszustand der Haushaltsgeschirrspülmaschine nicht sicher ist. Insbesondere ist die Auswerteeinheit dazu eingerichtet, wenn sie einen unsicheren Betriebszustand der Haushaltsgeschirrspülmaschine ermittelt, einen Start des Spülprogramms zu unterbinden, eine Information an den Benutzer auszugeben und/oder eine weitere vorbestimmte Aktion durchzuführen. Die weitere vorbestimmte Aktion kann beispielsweise ein automatisches Türöffnen umfassen und/oder ein Auslösen eines Not-Aus-Schalters der Haushaltsgeschirrspülmaschine.The evaluation unit is set up to determine a safe operating state of the domestic dishwasher as a function of the detected optical sensor signal. For example, the evaluation unit processes and/or analyzes the recorded optical sensor signal in such a way that it determines safety-relevant circumstances for the operation and/or for starting and executing the washing program. This ensures that the domestic dishwasher is in a safe operating state. For example, the evaluation unit determines whether there is a living being, in particular a child or a pet, in the washing chamber. The evaluation unit then determines that the operating state of the domestic dishwasher is not safe. In particular, if the evaluation unit determines an unsafe operating state of the household dishwasher, it is set up to prevent the washing program from starting, to output information to the user and/or to carry out a further predetermined action. The additional predetermined action can include, for example, automatic door opening and/or triggering of an emergency off switch of the household dishwasher.

Gemäß einer Ausführungsform der Haushaltsgeschirrspülmaschine ist die Auswerteeinheit dazu eingerichtet, in Abhängigkeit des ermittelten sicheren Betriebszustands eine vorbestimmte Aktion durchzuführen.According to one embodiment of the household dishwasher, the evaluation unit is set up to carry out a predetermined action depending on the determined safe operating state.

Die vorbestimmte Aktion umfasst insbesondere ein Ausgeben einer Information an den Benutzer der Haushaltsgeschirrspülmaschine. Die Information kann sowohl visuell als auch akustisch und/oder haptisch dargestellt werden, beispielsweise mittels eines Anzeigeelements, mittels eines Lautsprechers und/oder mittels einer Vibrationseinheit. Insbesondere kann vorgesehen sein, dass die Information mittels einer Kommunikationseinheit an ein externes Steuerungsgerät, wie beispielsweise ein Smartphone des Benutzers, übertragen und auf diesem von einer geeigneten App verarbeitet und ausgegeben wird.The predetermined action includes, in particular, outputting information to the user of the domestic dishwasher. The information can be presented both visually and acoustically and/or haptically, for example by means of a display element, by means of a loudspeaker and/or by means of a vibration unit. In particular, it can be provided that the information is transmitted by means of a communication unit to an external control device, such as the user's smartphone, and is processed and output there by a suitable app.

Gemäß einer weiteren Ausführungsform der Haushaltsgeschirrspülmaschine ist die Auswerteeinheit dazu eingerichtet, in Abhängigkeit des ermittelten sicheren Betriebszustands einen Start des Spülprogramms zu blockieren oder freizugeben.According to a further embodiment of the domestic dishwasher, the evaluation unit is set up to block or release a start of the washing program depending on the determined safe operating state.

Die Auswerteeinheit ist dazu eingerichtet, in Abhängigkeit des erfassten optischen Sensorsignals ein Lebewesen in der Spülkammer zu ermitteln.The evaluation unit is set up to determine a living being in the washing chamber as a function of the detected optical sensor signal.

Beispielsweise umfasst der optische Sensor einen Infrarotsensor. Insbesondere größere Lebewesen, wie Kinder und Haustiere, strahlen Infrarotstrahlung ab. Diese Infrarotstrahlung kann von dem Infrarotsensor erfasst werden. Das erfasste optische Sensorsignal weist dann eine entsprechende Form auf, so dass die Auswerteeinheit auf die Gegenwart eines Lebewesens schließen kann. Wenn die Auswerteeinheit ein Lebewesen in der Spülkammer ermittelt, so entspricht dies insbesondere einem unsicheren Betriebszustand.For example, the optical sensor includes an infrared sensor. In particular, larger creatures such as children and pets emit infrared radiation. This infrared radiation can be detected by the infrared sensor. The detected optical sensor signal then has a corresponding form, so that the evaluation unit can deduce the presence of a living being. If the evaluation unit detects a living being in the washing chamber, this corresponds in particular to an unsafe operating state.

Gemäß einer weiteren Ausführungsform der Haushaltsgeschirrspülmaschine ist die Auswerteeinheit dazu eingerichtet, den Start des Spülprogramms bei einem ermittelten Lebewesen in der Spülkammer zu blockieren.According to a further embodiment of the household dishwasher, the evaluation unit is set up to block the start of the washing program if a creature is detected in the washing chamber.

Gemäß einer weiteren Ausführungsform der Haushaltsgeschirrspülmaschine umfasst der optische Sensor einen optischen Bewegungssensor, wobei die Auswerteeinheit dazu eingerichtet ist, eine Bewegung in der Spülkammer zu ermitteln.According to a further embodiment of the household dishwasher, the optical sensor comprises an optical movement sensor, with the evaluation unit being set up to determine a movement in the washing chamber.

Der Bewegungssensor ist insbesondere unterstützend zur Ermittlung des sicheren Betriebszustands vorgesehen, wenn dieser zu Zeiten, zu denen kein Spülprogramm durchgeführt wird, Verwendung findet. Der Bewegungssensor eignet sich ferner dazu, während der Durchführung eines Spülprogramms beispielsweise eine ordnungsgemäße Bewegung der Sprüharme der Geschirrspülmaschine zu erfassen. Hierbei erfüllt der optische Bewegungssensor daher eine Doppelfunktion.The movement sensor is provided in particular to support the determination of the safe operating state if it is used at times when no dishwashing program is being carried out. The movement sensor is also suitable, for example, for a proper movement during the execution of a dishwashing program of the spray arms of the dishwasher. The optical motion sensor therefore fulfills a dual function here.

Beispielsweise lässt sich durch eine Kombination verschiedener Sensortypen, wie einem optischen Infrarotsensor und einem optischen Bewegungssensor, eine Sicherheit in der Ermittlung des sicheren Betriebszustands maximieren.For example, a combination of different sensor types, such as an optical infrared sensor and an optical motion sensor, can maximize security in determining the secure operating state.

Gemäß einer weiteren Ausführungsform der Haushaltsgeschirrspülmaschine ist die Auswerteeinheit dazu eingerichtet, den Start des Spülprogramms bei einer ermittelten Bewegung in der Spülkammer zu blockieren.According to a further embodiment of the household dishwasher, the evaluation unit is set up to block the start of the washing program when a movement is detected in the washing chamber.

Gemäß einer weiteren Ausführungsform der Haushaltsgeschirrspülmaschine weist diese eine Beleuchtungseinrichtung zum Beleuchten der Spülkammer bei dem Erfassen des optischen Sensorsignals auf.According to a further embodiment of the household dishwasher, it has an illumination device for illuminating the washing chamber when the optical sensor signal is detected.

Gemäß einer weiteren Ausführungsform der Haushaltsgeschirrspülmaschine umfasst der optische Sensor eine Kamera, wobei das optische Sensorsignal ein Bild und/oder ein Video der Spülkammer umfasst.According to a further embodiment of the household dishwasher, the optical sensor includes a camera, the optical sensor signal including an image and/or a video of the washing chamber.

Gemäß einer weiteren Ausführungsform der Haushaltsgeschirrspülmaschine ist die Auswerteeinheit dazu eingerichtet ist, eine Bildanalyse des erfassten Bildes und/oder Videos durchzuführen.According to a further embodiment of the household dishwasher, the evaluation unit is set up to carry out an image analysis of the captured image and/or video.

Erfindungsgemäß weist die Haushaltsgeschirrspülmaschine eine Empfangseinheit zum Empfangen eines Startsignals von einer externen Steuerungseinheit zum Fernstarten des Spülprogramms auf. Die Auswerteeinheit ist dazu eingerichtet, in Abhängigkeit des ermittelten sicheren Betriebszustands den durch das empfangene Startsignal veranlassten Start des Spülprogramms zu blockieren oder freizugeben.According to the invention, the domestic dishwasher has a receiving unit for receiving a start signal from an external control unit for remotely starting the washing program. The evaluation unit is set up to block or release the start of the dishwashing program initiated by the start signal received, depending on the determined safe operating state.

Die Empfangseinheit ist insbesondere als ein Modem und/oder ein Netzwerkadapter ausgebildet und ist dazu eingerichtet, mittels eines Netzwerks, wie beispielsweise einem LAN, einem WLAN und/oder einem Mobilfunknetzwerk, das Startsignal zu empfangen. Die externe Steuerungseinheit ist insbesondere als ein Smartphone ausgebildet, auf dem eine entsprechende App läuft.The receiving unit is designed in particular as a modem and/or a network adapter and is set up to receive the start signal by means of a network, such as a LAN, a WLAN and/or a cellular network. The external control unit is designed in particular as a smartphone on which a corresponding app is running.

Die Empfangseinheit kann ferner zur bidirektionalen Kommunikation ausgebildet sein. Das heißt insbesondere, dass die Empfangseinheit auch zum Senden von Daten eingerichtet sein kann.The receiving unit can also be designed for bidirectional communication. This means in particular that the receiving unit can also be set up to send data.

Unter dem Blockieren oder auch Freigeben des Starts kann beispielsweise verstanden werden, dass die Auswerteeinheit das empfangene Startsignal noch vor der Steuerungsvorrichtung abfängt. Alternativ oder zusätzlich kann auch vorgesehen sein, dass die Steuerungsvorrichtung, wenn diese ein Startsignal empfängt, zunächst bei der Auswerteeinheit den sicheren Betriebszustand abfragt und in Abhängigkeit der Antwort den Start durchführt oder abbricht.Blocking or enabling the start can be understood, for example, as meaning that the evaluation unit intercepts the received start signal even before the control device. Alternatively or additionally, it can also be provided that the control device, when it receives a start signal, first queries the safe operating state from the evaluation unit and, depending on the response, carries out the start or aborts it.

In Ausführungsformen der Haushaltsgeschirrspülmaschine weist diese ein automatisches Dosiersystem auf, welches einen Vorratsbehälter zum Aufnehmen eines Vorrats von Reinigungsmittel aufweist und welches dazu eingerichtet ist, während dem Durchführen des Spülprogramms automatisch Reinigungsmittel in die Spülkammer zuzugeben. Diese Ausführungsform ist für eine Fernstartfunktion besonders vorteilhaft, da sie es ermöglicht, dass der Benutzer von unterwegs aus unterschiedlichen Spülprogrammen, die beispielsweise unterschiedliche Reinigungsmittel voraussetzen, auswählen kann.In embodiments of the household dishwasher, it has an automatic dosing system which has a storage container for holding a supply of cleaning agent and which is set up to automatically add cleaning agent to the washing chamber while the washing program is being carried out. This embodiment is particularly advantageous for a remote start function, since it allows the user to select from different wash programs while on the move, which, for example, require different detergents.

Gemäß einem weiteren Aspekt wird ein Verfahren zum Betreiben einer Haushaltsgeschirrspülmaschine mit einer Steuerungsvorrichtung zum Durchführen eines Spülprogramms aus einer Anzahl von Spülprogrammen zum Spülen von in einer Spülkammer angeordnetem Spülgut vorgeschlagen. In einem ersten Verfahrensschritt wird ein Startsignal zum Starten des Spülprogramms erfasst, indem ein von einer externen Steuerungseinheit gesendetes Startsignal empfangen wird. Beispielsweise verwendet ein Benutzer der Haushaltsgeschirrspülmaschine hierzu eine Fernstartfunktion, wobei das Startsignal von einem Smartphone des Benutzers an die Haushaltsgeschirrspülmaschine übertragen wird. In einem zweiten Verfahrensschritt wird ein optisches Sensorsignal der Spülkammer mittels eines optischen Sensors erfasst. In Abhängigkeit des optischen Sensorsignals wird ein Lebewesen in der Spülkammer ermittelt. In einem dritten Verfahrensschritt wird ein sicherer Betriebszustand der Haushaltsgeschirrspülmaschine in Abhängigkeit des ermittelten Lebewesens durch eine Auswerteeinheit ermittelt. Daraufhin wird der durch das empfangene Startsignal veranlasste Starts des Spülprogramms blockiert oder freigeben.According to a further aspect, a method for operating a domestic dishwasher with a control device for carrying out a washing program from a number of washing programs for washing items to be washed arranged in a washing chamber is proposed. In a first method step, a start signal for starting the washing program is detected by receiving a start signal sent by an external control unit. For example, a user of the household dishwasher uses a remote start function for this purpose, with the start signal being transmitted from the user's smartphone to the household dishwasher. In a second method step, an optical sensor signal from the washing chamber is detected by means of an optical sensor. Depending on the optical sensor signal, a living being is detected in the washing chamber. In a third method step, a safe operating state of the domestic dishwasher is determined by an evaluation unit as a function of the living being determined. The start of the dishwashing program initiated by the start signal received is then blocked or enabled.

Dieses Verfahren ermöglicht es vorteilhaft, einen sicheren Betrieb der Haushaltsgeschirrspülmaschine jederzeit und automatisch zu gewährleisten.This method advantageously makes it possible to automatically and at all times ensure safe operation of the domestic dishwasher.

In Ausführungsformen des Verfahrens kann vorgesehen sein, das erfasste optische Sensorsignal an ein Mobilgerät, insbesondere ein Smartphone, und/oder an einen Server, wie beispielsweise ein Backend, zu übertragen. Das Mobilgerät und/oder der Server sind insbesondere als die Auswerteeinheit ausgebildet und dazu eingerichtet, den sicheren Betriebszustand in Abhängigkeit des übertragenen Sensorsignals zu ermitteln. Auf einem Mobilgerät kann das Ermitteln des sicheren Betriebszustands insbesondere von einer App, die auf dem Mobilgerät läuft, durchgeführt werden.In embodiments of the method, it can be provided that the detected optical sensor signal is transmitted to a mobile device, in particular a smartphone, and/or to a server, such as a backend. The mobile device and/or the server are designed in particular as the evaluation unit and are set up to determine the safe operating state as a function of the transmitted sensor signal. The safe operating state can be determined on a mobile device, in particular by an app running on the mobile device.

Die für die vorgeschlagene Haushaltsgeschirrspülmaschine beschriebenen Ausführungsformen und Merkmale gelten für das vorgeschlagene Verfahren entsprechend.The embodiments and features described for the proposed domestic dishwasher apply accordingly to the proposed method.

Insbesondere kann vorgesehen sein, dass ein Start des Spülprogramms in Abhängigkeit des erfassten optischen Sensorsignals der Spülkammer durch die Auswerteeinheit entweder freigegeben oder blockiert wird. Daneben sind weitere vorbestimmte Aktionen möglich, die die Auswerteeinheit in Abhängigkeit des erfassten optischen Sensorsignals und/oder des ermittelten sicheren Betriebszustands durchführt.In particular, it can be provided that a start of the washing program is either enabled or blocked by the evaluation unit depending on the detected optical sensor signal of the washing chamber. In addition, other predetermined actions are possible, which the evaluation unit carries out as a function of the detected optical sensor signal and/or the ascertained safe operating state.

Weiterhin wird ein Computerprogrammprodukt vorgeschlagen, welches auf einer programmgesteuerten Einrichtung die Durchführung des wie oben erläuterten Verfahrens veranlasst.Furthermore, a computer program product is proposed which causes the method explained above to be carried out on a program-controlled device.

Ein Computerprogrammprodukt, wie z.B. ein Computerprogramm-Mittel, kann beispielsweise als Speichermedium, wie z.B. Speicherkarte, USB-Stick, CD-ROM, DVD, oder auch in Form einer herunterladbaren Datei von einem Server in einem Netzwerk bereitgestellt oder geliefert werden. Dies kann zum Beispiel in einem drahtlosen Kommunikationsnetzwerk durch die Übertragung einer entsprechenden Datei mit dem Computerprogrammprodukt oder dem Computerprogramm-Mittel erfolgen.A computer program product, such as a computer program means, can be made available or supplied by a server in a network, for example, as a storage medium such as a memory card, USB stick, CD-ROM, DVD, or in the form of a downloadable file. This can be done, for example, in a wireless communication network by transferring a corresponding file with the computer program product or the computer program means.

Weitere mögliche Implementierungen der Erfindung umfassen auch nicht explizit genannte Kombinationen von zuvor oder im Folgenden bezüglich der Ausführungsbeispiele beschriebenen Merkmale oder Ausführungsformen. Dabei wird der Fachmann auch Einzelaspekte als Verbesserungen oder Ergänzungen zu der jeweiligen Grundform der Erfindung hinzufügen.Further possible implementations of the invention also include combinations of features or embodiments described above or below with regard to the exemplary embodiments that are not explicitly mentioned. In doing so, the person skilled in the art will also consider individual aspects add as improvements or additions to the respective basic form of the invention.

Weitere vorteilhafte Ausgestaltungen und Aspekte der Erfindung sind Gegenstand der Unteransprüche sowie der im Folgenden beschriebenen Ausführungsbeispiele der Erfindung. Im Weiteren wird die Erfindung anhand von bevorzugten Ausführungsformen unter Bezugnahme auf die beigelegten Figuren näher erläutert.Further advantageous refinements and aspects of the invention are the subject matter of the dependent claims and of the exemplary embodiments of the invention described below. The invention is explained in more detail below on the basis of preferred embodiments with reference to the enclosed figures.

Fig. 1 zeigt eine schematische perspektivische Ansicht eines Ausführungsbeispiels einer Haushaltsgeschirrspülmaschine; 1 shows a schematic perspective view of an embodiment of a domestic dishwasher;

Fig. 2 zeigt eine schematische Seitenansicht eines weiteren Ausführungsbeispiels einer Haushaltsgeschirrspülmaschine; und 2 shows a schematic side view of a further exemplary embodiment of a domestic dishwasher; and

Fig. 3 zeigt ein schematisches Blockschaltbild eines beispielhaften Verfahrens zum Betreiben einer Haushaltsgeschirrspülmaschine. 3 shows a schematic block diagram of an exemplary method for operating a domestic dishwasher.

In den Figuren sind gleiche oder funktionsgleiche Elemente mit denselben Bezugszeichen versehen worden, sofern nichts anderes angegeben ist.Elements that are the same or have the same function have been provided with the same reference symbols in the figures, unless otherwise stated.

Fig. 1 zeigt eine schematische perspektivische Ansicht eines Ausführungsbeispiels einer Haushaltsgeschirrspülmaschine 1. Die Haushaltsgeschirrspülmaschine 1 umfasst einen Spülbehälter 2, der durch eine Tür 3, insbesondere wasserdicht, verschließbar ist. Hierzu kann zwischen der Tür 3 und dem Spülbehälter 2 eine Dichteinrichtung vorgesehen sein (nicht dargestellt). Der Spülbehälter 2 ist vorzugsweise quaderförmig. Der Spülbehälter 2 kann in einem Gehäuse der Haushaltsgeschirrspülmaschine 1 angeordnet sein. Der Spülbehälter 2 und die Tür 3 können eine Spülkammer 4 zum Spülen von Spülgut bilden. 1 shows a schematic perspective view of an exemplary embodiment of a domestic dishwasher 1. The domestic dishwasher 1 comprises a washing container 2, which can be closed by a door 3, which is in particular watertight. For this purpose, a sealing device (not shown) can be provided between the door 3 and the washing container 2 . The washing compartment 2 is preferably cuboid. The washing compartment 2 can be arranged in a housing of the domestic dishwasher 1 . The washing container 2 and the door 3 can form a washing chamber 4 for washing items to be washed.

Die Tür 3 ist in der Fig. 1 in ihrer geöffneten Stellung dargestellt. Durch ein Schwenken um eine an einem unteren Ende der Tür 3 vorgesehene Schwenkachse 5 kann die Tür 3 geschlossen oder geöffnet werden. Mit Hilfe der Tür 3 kann eine Beschickungsöffnung 6 des Spülbehälters 2 geschlossen oder geöffnet werden. Der Spülbehälter 2 weist einen Boden 7, eine dem Boden 7 gegenüberliegend angeordnete Decke 8, eine der geschlossenen Tür 3 gegenüberliegend angeordnete Rückwand 9 und zwei einander gegenüberliegend angeordnete Seitenwände 10, 11 auf. Der Boden 7, die Decke 8, die Rückwand 9 und die Seitenwände 10, 11 können beispielsweise aus einem Edelstahlblech gefertigt sein. Alternativ kann beispielsweise der Boden 7 aus einem Kunststoffmaterial gefertigt sein.Door 3 is in the 1 shown in their open position. The door 3 can be closed or opened by pivoting about a pivot axis 5 provided at a lower end of the door 3 . With the help of the door 3, a loading opening 6 of the washing compartment 2 can be closed or opened. The washing compartment 2 has a base 7, a cover 8 arranged opposite the base 7, a rear wall 9 arranged opposite the closed door 3 and two rear walls located opposite one another arranged side walls 10, 11 on. The bottom 7, the top 8, the rear wall 9 and the side walls 10, 11 can be made from a stainless steel sheet, for example. Alternatively, for example, the bottom 7 can be made of a plastic material.

Die Haushaltsgeschirrspülmaschine 1 weist ferner zumindest eine Spülgutaufnahme 12, 13, 14 auf. Vorzugsweise können mehrere, beispielsweise drei, Spülgutaufnahmen 12, 13, 14 vorgesehen sein, wobei die Spülgutaufnahme 12 eine untere Spülgutaufnahme oder ein Unterkorb, die Spülgutaufnahme 13 eine obere Spülgutaufnahme oder ein Oberkorb und die Spülgutaufnahme 14 eine Besteckschublade sein kann. Wie die Fig. 1 weiterhin zeigt, sind die Spülgutaufnahmen 12, 13, 14 übereinander in dem Spülbehälter 2 angeordnet. Jede Spülgutaufnahme 12 bis 14 ist wahlweise in den Spülbehälter 2 hinein- oder aus diesem herausverlagerbar. Insbesondere ist jede Spülgutaufnahme 12, 13, 14 in einer Einschubrichtung E in den Spülbehälter 2 hineinschiebbar und entgegen der Einschubrichtung E in einer Auszugsrichtung A aus dem Spülbehälter 2 herausziehbar.The domestic dishwasher 1 also has at least one washware receptacle 12, 13, 14. Preferably, several, for example three, washware holders 12, 13, 14 can be provided, with washware holder 12 being a lower washware holder or a lower rack, washware holder 13 being an upper washware holder or an upper rack and washware holder 14 being a cutlery drawer. As the 1 further shows that the washing items receptacles 12, 13, 14 are arranged one above the other in the washing compartment 2. Each washware holder 12 to 14 can be moved either into or out of the washing compartment 2 . In particular, each washware receptacle 12, 13, 14 can be pushed into the washing compartment 2 in an insertion direction E and pulled out of the washing compartment 2 in a pull-out direction A counter to the insertion direction E.

Die Haushaltsgeschirrspülmaschine 1 weist zudem eine Steuerungsvorrichtung 100 sowie eine Auswerteeinheit 120 auf, die an der Tür 3 angeordnet sind. Ein als Kamera ausgebildeter optischer Sensor 110 ist an der Decke 8 so angeordnet, dass dieser zum Erfassen eines optischen Sensorsignals der Spülkammer 4 und damit aller von der Spülkammer 4 umfassten Bauteile und Gegenstände eingerichtet ist. Die gestrichelten Linien unterhalb der Kamera 110 deuten einen Erfassungsbereich der Kamera 110 an.The domestic dishwasher 1 also has a control device 100 and an evaluation unit 120 which are arranged on the door 3 . An optical sensor 110 embodied as a camera is arranged on the ceiling 8 in such a way that it is set up to detect an optical sensor signal of the washing chamber 4 and thus of all components and objects contained in the washing chamber 4 . The broken lines below the camera 110 indicate a detection range of the camera 110 .

Durch die Kombination der Kamera 110 und der Auswerteeinheit 120 ist es vorteilhaft möglich, einen sicheren Betriebszustand der Haushaltsgeschirrspülmaschine 1 jederzeit und automatisch zu ermitteln.The combination of the camera 110 and the evaluation unit 120 advantageously makes it possible to determine a safe operating state of the domestic dishwasher 1 at any time and automatically.

Fig. 2 zeigt eine schematische Seitenansicht eines weiteren Ausführungsbeispiels einer Haushaltsgeschirrspülmaschine 1, beispielsweise einer Variante der Haushaltsgeschirrspülmaschine 1 der Fig. 1. In diesem Beispiel ist die Tür 3 geschlossen, so dass der Spülbehälter 2 und die Tür 3 die geschlossene Spülkammer 4 bilden. Die Haushaltsgeschirrspülmaschine 1 der Fig. 2 weist alle Merkmale der Haushaltsgeschirrspülmaschine der Fig. 1 auf, wobei viele der Merkmale aus Gründen der Übersichtlichkeit nicht dargestellt sind. Der optische Sensor 110 ist an der Decke 8 des Spülbehälters 2 angeordnet. 2 shows a schematic side view of a further exemplary embodiment of a domestic dishwasher 1, for example a variant of the domestic dishwasher 1 of FIG 1 . In this example, the door 3 is closed, so that the rinsing compartment 2 and the door 3 form the closed rinsing chamber 4 . The household dishwasher 1 of 2 has all the characteristics of the household dishwasher 1 with many of the features omitted for clarity. The optical sensor 110 is arranged on the ceiling 8 of the washing compartment 2 .

Darüber hinaus weist die Haushaltsgeschirrspülmaschine 1 eine Beleuchtungseinrichtung 130 und eine Empfangseinheit 150 auf.In addition, the domestic dishwasher 1 has an illumination device 130 and a receiving unit 150 .

Neben der Haushaltsgeschirrspülmaschine 1 ist eine externe Steuerungseinheit 160 dargestellt, die beispielsweise als ein Smartphone ausgebildet ist. Das Smartphone 160 ist dazu eingerichtet, eine Kommunikationsverbindung mit der Empfangseinheit 150 herzustellen, beispielsweise über ein Mobilfunknetz. Insbesondere kann ein Benutzer mittels des Smartphones 160 ein Startsignal S an die Empfangseinheit 150 übermitteln. Das Startsignal S veranlasst die Steuerungsvorrichtung 100 der Haushaltsgeschirrspülmaschine 1 dazu, ein Spülprogramm zu starten. Das Startsignal S kann dabei auch eine Auswahl des Spülprogramms aus einer Anzahl von Spülprogrammen umfassen.An external control unit 160, which is designed as a smartphone, for example, is shown next to the domestic dishwasher 1. The smartphone 160 is set up to establish a communication connection with the receiving unit 150, for example via a mobile network. In particular, a user can use the smartphone 160 to transmit a start signal S to the receiving unit 150 . The start signal S prompts the control device 100 of the domestic dishwasher 1 to start a washing program. The start signal S can also include a selection of the washing program from a number of washing programs.

In der Darstellung der Fig. 2 befindet sich allerdings ein Lebewesen 140, beispielsweise ein Hund des Benutzers, in der Spülkammer 4. Beispielsweise ist der Hund 140 bei einem Beschicken der Spülkammer 4 mit Spülgut in einem von dem Benutzer unbeobachteten Augenblick in die Spülkammer 4 gesprungen und der Benutzer hat die Tür 3 des Spülbehälters 2 geschlossen, ohne zu bemerken, dass der Hund 140 sich in dem Spülbehälter 4 befindet. Beispielsweise entscheidet sich der Benutzer von unterwegs zum Durchführen eines Spülprogramms. Hierzu öffnet er die entsprechende App auf seinem Smartphone 160, wählt ein Spülprogramm aus und bestätigt die Auswahl. Das Smartphone 160 sendet daraufhin das entsprechende Startsignal S an die Empfangseinheit 150 der Haushaltsgeschirrspülmaschine 1. Diese empfängt das Startsignal S und überträgt es beispielsweise an die Steuerungsvorrichtung 100. Die Steuerungsvorrichtung 100 ist dazu eingerichtet, vor dem Start des Spülprogramms den sicheren Betriebszustand der Haushaltsgeschirrspülmaschine 1 zu berücksichtigen.In the representation of 2 however, there is a living being 140, for example a dog owned by the user, in the washing chamber 4. For example, when the washing chamber 4 was being loaded with dishes to be washed, the dog 140 jumped into the washing chamber 4 at a moment unobserved by the user and the user opened the door 3 of the rinsing tank 2 closed without noticing that the dog 140 is in the rinsing tank 4. For example, the user decides to carry out a washing program while on the go. To do this, he opens the corresponding app on his smartphone 160, selects a dishwashing program and confirms the selection. The smartphone 160 then sends the corresponding start signal S to the receiving unit 150 of the household dishwasher 1. This receives the start signal S and transmits it, for example, to the control device 100. The control device 100 is set up to ensure the safe operating state of the household dishwasher 1 before the start of the washing program consider.

Hierzu erfasst der optische Sensor 110 ein optisches Sensorsignal der Spülkammer 4, in dem dargestellten Beispiel mit Unterstützung durch die Beleuchtungseinrichtung 130, welche die Spülkammer 4 während des Erfassens des optischen Sensorsignals ausleuchtet. Der optische Sensor 110 überträgt das erfasste optische Sensorsignal an die Auswerteeinheit 120, welche daraufhin ausgehend von dem erfassten optischen Sensorsignal den sicheren Betriebszustand ermittelt. In dem Beispiel ermittelt die Auswerteeinheit 120 jedoch, dass sich der Hund 140 in der Spülkammer 4 befindet. Der Betriebszustand der Haushaltsgeschirrspülmaschine 1 ist daher unsicher, und die Auswerteeinheit 120 ermittelt den Betriebszustand als unsicher, weshalb die Auswerteeinheit 120 den Start des Spülprogramms unterbindet. Die Steuerungsvorrichtung 100 wird den Start daher nicht durchführen.For this purpose, the optical sensor 110 detects an optical sensor signal of the rinsing chamber 4, in the example shown with the support of the lighting device 130, which illuminates the rinsing chamber 4 while the optical sensor signal is being detected. The optical sensor 110 transmits the detected optical sensor signal to the evaluation unit 120, which then determines the safe operating state based on the detected optical sensor signal. In the example, however, the evaluation unit 120 ascertains that the dog 140 is in the rinsing chamber 4 . The operating state of the domestic dishwasher 1 is therefore uncertain, and the evaluation unit 120 determines the operating state as unsafe, which is why the evaluation unit 120 prevents the start of the washing program. The control device 100 will therefore not carry out the start.

In Ausführungsformen kann weiterhin vorgesehen sein, dass die Auswerteeinheit 120 als eine vorbestimmte Aktion eine automatische Türöffnung durchführt, damit der Hund 140 aus der Spülkammer 4 befreit wird. Ferner kann eine Information an den Benutzer übermittelt werden. In dieser Ausführungsform ist die Empfangseinheit 150 insbesondere zur bidirektionalen Kommunikation mit der externen Steuerungseinheit 160 eingerichtet.In embodiments, provision can furthermore be made for the evaluation unit 120 to carry out an automatic door opening as a predetermined action, so that the dog 140 is freed from the rinsing chamber 4 . Information can also be transmitted to the user. In this specific embodiment, the receiving unit 150 is set up in particular for bidirectional communication with the external control unit 160 .

Fig. 3 zeigt ein schematisches Blockschaltbild eines Ausführungsbeispiels eines Verfahrens zum Betreiben einer Haushaltsgeschirrspülmaschine 1, beispielsweise der Haushaltsgeschirrspülmaschine 1 der Fig. 1 oder der Fig. 2. 3 shows a schematic block diagram of an exemplary embodiment of a method for operating a domestic dishwasher 1, for example the domestic dishwasher 1 of FIG 1 or the 2 .

In einem ersten Verfahrensschritt S1 wird ein Startsignal S zum Starten eines Spülprogramms erfasst. Das Startsignal S kann insbesondere von einer externen Steuerungseinheit 160, wie beispielsweise einem Smartphone, empfangen werden.In a first method step S1, a start signal S for starting a washing program is detected. The start signal S can be received in particular by an external control unit 160, such as a smartphone.

In einem zweiten Verfahrensschritt S2 erfasst ein optischer Sensor 110 ein optisches Sensorsignal der Spülkammer 4.In a second method step S2, an optical sensor 110 detects an optical sensor signal of the washing chamber 4.

In einem dritten Verfahrensschritt S3 ermittelt eine Auswerteeinheit 120 in Abhängigkeit des erfassten optischen Sensorsignals einen sicheren Betriebszustand der Haushaltsgeschirrspülmaschine 1. Das heißt insbesondere, dass die Auswerteeinheit 120 das erfasste optische Sensorsignal verarbeitet und überprüft.In a third method step S3, an evaluation unit 120 determines a safe operating state of the domestic dishwasher 1 as a function of the detected optical sensor signal. This means in particular that the evaluation unit 120 processes and checks the detected optical sensor signal.

Beispielsweise ermittelt die Auswerteeinheit 120, dass ein sicherer Betriebszustand gewährleistet ist. Dann kann das Spülprogramm, wie vorgesehen, durchgeführt werden. In anderen Situationen kann es sein, dass die Auswerteeinheit 120 ermittelt, dass der sichere Betriebszustand nicht gewährleistet ist. Dann kann vorgesehen sein, dass die Auswerteeinheit 120 einen Start des Spülprogramms blockiert. In diesem Fall kann ferner vorgesehen sein, dass in vorbestimmten zeitlichen Abständen erneut ein optisches Sensorsignals erfasst und der sichere Betriebszustand ermittelt wird. Sobald der sichere Betriebszustand gegeben ist, kann das Spülprogramm gestartet werden, sofern das Startsignal S dann noch gültig ist.For example, the evaluation unit 120 determines that a safe operating state is guaranteed. Then the washing program can be carried out as intended. In other situations it may be that the evaluation unit 120 determines that the safe operating state is not guaranteed. It can then be provided that the evaluation unit 120 blocks the start of the washing program. In this case, it can also be provided that an optical sensor signal is recorded again at predetermined time intervals and the safe operating state is determined. As soon as the safe operating condition is given, the washing program can be started if the start signal S is then still valid.

Obwohl die vorliegende Erfindung anhand von Ausführungsbeispielen beschrieben wurde, ist sie vielfältig modifizierbar.Although the present invention has been described using exemplary embodiments, it can be modified in many ways.

Verwendete Bezugszeichen:Reference signs used:

11
Haushaltsgeschirrspülmaschinedomestic dishwasher
22
Spülbehälterflush tank
33
Türdoor
44
Spülkammerwashing chamber
55
Schwenkachsepivot axis
66
Beschickungsöffnungloading opening
77
Bodenfloor
88th
Deckeceiling
99
Rückwandback panel
1010
SeitenwandSide wall
1111
SeitenwandSide wall
1212
Spülgutaufnahmeitems to be washed
1313
Spülgutaufnahmeitems to be washed
1414
Spülgutaufnahmeitems to be washed
100100
Steuerungsvorrichtungcontrol device
110110
optischer Sensoroptical sensor
120120
Auswerteeinheitevaluation unit
130130
Beleuchtungseinrichtunglighting device
140140
LebewesenCreature
150150
Empfangseinheitreceiving unit
160160
externe Steuerungseinheitexternal control unit
AA
Auszugsrichtungpull direction
EE
Einschubrichtunginsertion direction
SS
Startsignalstart signal
S1S1
Verfahrensschrittprocess step
S2S2
Verfahrensschrittprocess step
S3S3
Verfahrensschrittprocess step

Claims (11)

  1. Household dishwasher (1) with a control device (100) for carrying out a washing program selected from a number of washing programs for washing items to be washed arranged in a washing compartment (4), an optical sensor (110) for acquiring an optical sensor signal of the washing compartment (4), a receiving unit (150) for receiving a start signal (S) from an external control unit (160) for starting the washing program remotely, and an evaluation unit (120), which is configured to identify a living creature (140) in the washing compartment (4) as a function of the acquired optical sensor signal, to identify a safe operating state of the household dishwasher (1) as a function of an identified living creature (140) and to block or release a start of the washing program initiated by the received start signal (S) as a function of the identified safe operating state.
  2. Household dishwasher according to claim 1, characterised in that the evaluation unit (120) is configured to carry out a predetermined action as a function of the identified safe operating state.
  3. Household dishwasher according to claim 1 or 2, characterised in that the evaluation unit (120) is configured to block or release a start of the washing program as a function of the identified safe operating state.
  4. Household dishwasher according to one of claims 1 - 3, characterised in that the evaluation unit (120) is configured to block the start of the washing program if a living creature (140) is identified in the washing compartment (4).
  5. Household dishwasher according to one of claims 1 - 4, characterised in that the optical sensor (110) is an optical motion sensor for detecting a movement in the washing compartment (4), wherein the evaluation unit (120) is configured to identify the safe operating state as a function of the detected movement.
  6. Household dishwasher according to claim 5, characterised in that the evaluation unit (120) is configured to block the start of the washing program if a movement is detected in the washing compartment (4).
  7. Household dishwasher according to one of claims 1 - 6, characterised by a lighting device (130) for illuminating the washing compartment (4) during acquisition of the optical sensor signal.
  8. Household dishwasher according to one of claims 1 - 7, characterised in that the optical sensor (110) comprises a camera, wherein the optical sensor signal comprises an image and/or a video of the washing compartment (4).
  9. Household dishwasher according to claim 8, characterised in that the evaluation unit (120) is configured to carry out an image analysis of the acquired image and/or video.
  10. Method for operating a household dishwasher (1) with a control device (100) for carrying out a washing program selected from a number of washing programs for washing items to be washed arranged in a washing compartment (4), comprising:
    receiving (S1) a start signal (S) sent from an external control unit (160) for starting the washing program remotely,
    acquisition (S2) of an optical sensor signal of the washing compartment (4) by means of an optical sensor (110),
    identification of a living creature (140) in the washing compartment (4) as a function of the acquired optical sensor signal,
    identification (S3) of a safe operating state of the household dishwasher (1) by an evaluation unit (120) as a function of an identified living creature (140), and
    blocking or releasing a start of the washing program initiated by the received start signal (S).
  11. Computer program product, which initiates the execution of the method according to claim 10 on a program-controlled device.
EP18737906.0A 2017-07-19 2018-07-06 Household dishwasher and method for operating a household dishwasher Active EP3654817B1 (en)

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DE102019202284A1 (en) 2019-02-20 2020-08-20 BSH Hausgeräte GmbH Household electrical appliance
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CN112869675B (en) * 2021-01-11 2022-04-26 佛山市顺德区美的洗涤电器制造有限公司 Control method and control device for dish washing machine, storage medium and processor

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