EP4326131A1 - Procédé et dispositif de réglage d'un processus de séchage dans un appareil de nettoyage, caméra, et appareil de nettoyage - Google Patents

Procédé et dispositif de réglage d'un processus de séchage dans un appareil de nettoyage, caméra, et appareil de nettoyage

Info

Publication number
EP4326131A1
EP4326131A1 EP22720456.7A EP22720456A EP4326131A1 EP 4326131 A1 EP4326131 A1 EP 4326131A1 EP 22720456 A EP22720456 A EP 22720456A EP 4326131 A1 EP4326131 A1 EP 4326131A1
Authority
EP
European Patent Office
Prior art keywords
camera
signal
cleaning device
cooling
protective pane
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22720456.7A
Other languages
German (de)
English (en)
Inventor
Eckard Riedenklau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP4326131A1 publication Critical patent/EP4326131A1/fr
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0021—Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
    • A47L15/0034—Drying phases, including dripping-off phases
    • 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
    • A47L15/0044—Operation time reduction
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4295—Arrangements for detecting or measuring the condition of the crockery or tableware, e.g. nature or quantity
    • 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
    • A47L2401/04—Crockery or tableware details, e.g. material, quantity, condition
    • 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
    • A47L2401/30—Variation of electrical, magnetical or optical quantities
    • 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
    • A47L2501/34—Change machine operation from normal operational mode into special mode, e.g. service mode, resin regeneration mode, sterilizing mode, steam mode, odour eliminating mode or special cleaning mode to clean the hydraulic circuit

Definitions

  • the invention relates to a method and a device for adjusting a drying process in a cleaning device, a camera and a cleaning device.
  • Dishwasher cleaning programs include a drying cycle to dry the cleaned dishes.
  • the object of the invention is to create an improved method and an improved device for adapting a drying process in a cleaning device, an improved camera and an improved cleaning device.
  • this object is achieved by a method and a device for adapting a drying process in a cleaning device, a camera and a cleaning device with the features of the main claims.
  • the advantages that can be achieved with the invention are that the drying process in a cleaning device can be shortened and improved. This can also improve customer satisfaction.
  • a method for adapting a drying process in a cleaning device with a camera for capturing an interior of the cleaning device comprises the following steps:
  • the droplet signal representing a characteristic of drops on a protective pane of the camera imaged in the image
  • a cleaning device can be understood to mean a dishwasher for cleaning items to be washed.
  • the cleaning device can be designed, after a cleaning process, in which the items to be washed are subjected to a cleaning liquid to start a drying process.
  • the camera can be arranged, for example, on the inside of a door of the cleaning device or on a wall of the interior of the cleaning device.
  • a detection range of an image sensor of the camera can be directed through the protective pane into the interior, ie the washing area of the cleaning appliance.
  • the protective pane thus delimits the interior of the cleaning device or delimits it from the camera area and thus prevents cleaning liquid from penetrating into the camera or into the camera housing.
  • the camera can be used to monitor the drying process.
  • the camera can record at least one image during the drying process. By evaluating the image, a conclusion can be drawn about the progress of the drying process, and a further course of the drying process can be adapted according to the currently determined progress. As long as drops can still be seen on the protective pane using the image, it can be assumed that drying has not yet taken place sufficiently.
  • the method can prevent the items to be washed from being damp or even completely wet after the wash cycle, depending on the material, and first having to be dried by hand.
  • the invention also prevents the customer from being dissatisfied with the drying result.
  • droplets in the interior of the dishwashing machine can be imaged despite their small size. This does not require an expensive camera system.
  • the interior of the washing machine can advantageously be monitored by means of the camera and a corresponding image evaluation.
  • Such a camera can be a camera that is already used in the cleaning program, in particular the cleaning and/or drying process, for one or more other sensory tasks, such as the degree of loading and/or types of loading and/or degree of soiling and / or monitor types optically and to evaluate, and to improve the rinsing performance with the information obtained, for example, and / or increase ease of use.
  • the method can include a step of outputting an activation signal to an interface to at least one light source for illuminating a protective pane of the camera.
  • the light source can be activated by the activation signal.
  • drops located on the protective pane can be better detected.
  • the method can include a step of outputting a deactivation signal to an interface to a wash compartment interior light of the cleaning device.
  • the interior lighting of the washing area is not realized by the one or more light sources that are used to illuminate the protective pane of the camera; instead, the interior lighting of the washing area includes one or more additional light sources.
  • the wash compartment interior lighting can be deactivated by the deactivation signal. In other words, the image is recorded in this case with the interior lighting of the cleaning appliance in the wash compartment deactivated.
  • the illumination of the drops on the protective pane and thus the contrast between the drops and the background can be maximized.
  • the droplets then show up, for example, as light, round areas in front of a dark background.
  • the method can include a step of outputting a cooling signal to an interface to a cooling device for cooling the protective pane of the camera.
  • the cooling device can be activated by the cooling signal. This offers the advantage that the cooling of the camera's protective pane increases condensation of the drops on the camera's protective pane.
  • the method can evaluate a number and additionally or alternatively a size of the imaged drops or in particular the ratio of the number and size of the imaged drops as the characteristic. This allows the adjustment signal to be determined. This enables a more precise evaluation of the drops and thus the progress of the drying process.
  • a further image signal can be read in from the camera, which represents a further image recorded by the camera.
  • a load signal which represents a type and/or amount of the load on the cleaning device, can be determined using the further image signal.
  • the adjustment signal for adjusting the drying process using the loading signal can be provided. In this way, a type and/or quantity of the load can advantageously be included in the adaptation of the drying process. Both the loading and the formation of drops can be recorded using one and the same camera.
  • the further image signal is preferably read in when the interior lighting of the cleaning appliance in the wash compartment is activated, but the light source present for illuminating the protective pane of the camera is preferably deactivated in the process.
  • a corresponding camera for capturing an interior of a cleaning appliance can have the named protective pane and at least one light source which is designed to illuminate the protective pane.
  • the light source can improve the detection of the drops compared to a camera without a corresponding light source. Despite the light source, the drops can be recorded inexpensively using a camera on the protective pane.
  • the light source is arranged in particular outside of the interior of the cleaning device and in particular aligned in such a way that the light rays it emits are coupled directly into the protective pane, i.e. without passing part of the interior of the cleaning device.
  • the optionally available washing chamber interior lighting it is not used to illuminate the interior of the cleaning device, but to illuminate the protective pane.
  • the camera can have a cooling device for cooling the protective pane of the camera. This increases the condensation of the droplets on the protective glass of the camera.
  • the cooling device can be fully integrated into the camera or partially arranged outside of a housing of the camera.
  • the cooling device can be designed as a fan.
  • a fan is inexpensive.
  • the protective pane and additionally or alternatively a housing of the camera can have cooling fins.
  • the cooling fins can improve cooling of the protective screen of the camera. Such slats increase the attack surface for the air flow.
  • the improved cooling means that the drops can condense more heavily on the protective pane.
  • the cooling device can be electrothermal. This can be done with a Peltier element and offers the advantage that a small installation space in the camera is sufficient due to the small size of a Peltier element.
  • the cooling device can be designed as a water cooling system. This can be done with little effort, for example by using a small membrane pump to circulate a small flow of water to the camera.
  • a device for adapting a drying process in a cleaning device with a camera for capturing an interior of the cleaning device can carry out the steps of the method mentioned in corresponding units.
  • Such a device can be designed to read in input signals and to determine and provide output signals using the input signals.
  • An input signal can represent, for example, a sensor signal that can be read in via an input interface of the device.
  • An output signal may represent a control signal or a data signal that may be provided at an output interface of the device.
  • the device can be designed to determine the output signals using a processing specification implemented in hardware or software.
  • the device can include a logic circuit, an integrated circuit or a software module and can be implemented as a discrete component, for example, or can be comprised of a discrete component.
  • the device can be implemented, for example, as part of a control unit of the cleaning device or in addition to such a control unit.
  • a corresponding cleaning device with a camera can include such a device.
  • the described approach can be advantageously implemented in a cleaning device.
  • the cleaning device can have a door for closing the interior of the cleaning device and a heat dissipation device.
  • the camera can be attached to the door and the heat dissipation device can be configured to dissipate waste heat from the camera to the door. This is advantageous because heating up the camera could make it more difficult for drops to condense on the protective screen.
  • the cleaning device described here or the method described here can be used accordingly in connection with a commercial or professional device, for example a cleaning or disinfection device.
  • a computer program product or computer program with program code which can be stored on a machine-readable carrier or storage medium such as a semiconductor memory, a hard disk memory or an optical memory, is also advantageous. If the program product or program is executed on a computer or a device, then the program product or program can be used to carry out, implement and/or control the steps of the method according to one of the embodiments described above.
  • FIG. 1 shows a schematic representation of a cleaning device with a camera according to an exemplary embodiment
  • FIG. 2 shows a schematic representation of a cleaning device with a camera according to a further exemplary embodiment
  • FIG. 3 shows a schematic detailed illustration of a camera in a door of a cleaning device according to an exemplary embodiment
  • FIG. 3A shows a schematic representation of a cross section in the area of the opening in a door of a cleaning device for a camera according to an exemplary embodiment
  • FIG. 4 shows a schematic detailed illustration of a camera in a door of a cleaning device according to a further exemplary embodiment
  • FIG. 5 shows a camera image with condensed drops according to an embodiment
  • FIG. 6 shows a schematic representation of a control device of a cleaning device according to an exemplary embodiment
  • FIG. 7 shows a flow chart of a method for adapting a drying process in a cleaning device according to an exemplary embodiment
  • FIG. 8 shows a flow chart of a method for adapting a drying process in a cleaning device according to a further exemplary embodiment.
  • FIG. 1 shows a schematic representation of a cleaning device 100 with a camera 105 according to an exemplary embodiment.
  • the cleaning device 100 is designed as a dishwasher which, in accordance with known dishwashers, can run a cleaning program with a drying process.
  • the camera 105 is designed to capture an interior of the cleaning device 100 .
  • a progress of the drying process can be monitored. This makes it possible to adjust the drying process.
  • the drying process can be ended if an evaluation of an image from the camera indicates that sufficient drying has taken place, or the drying process can be extended if an evaluation of the image from the camera indicates that there is still too much moisture in the interior of the cleaning device is located.
  • a camera can be used as the camera 105 , as is already installed in cleaning devices 100 .
  • a camera optimized for detecting drops or moisture can be used as an option.
  • the cleaning appliance 100 has a door which primarily consists of an outer door panel 115 and an inner door panel 120 .
  • an internal camera housing 125 is latched with a protective pane 130 in an opening in the inner door panel 120 according to one exemplary embodiment.
  • the protective pane 130 is embodied as a camera protective pane made of transparent Grilamid. An existing seal between the protective pane 130 and the inner door panel 120 is not shown explicitly in FIG.
  • the actual camera 105 is locked in the camera housing 125 . This configuration and arrangement of the camera 105 is only selected as an example.
  • FIG. 1 Also indicated in FIG. 1 are a rear wall 135 of the washing interior, an upper rack 145 and a lower rack 150, each loaded with items to be washed 155, 160, and a central spray arm 165.
  • the operator loads the cleaning device 100 with items to be washed 155, 160 and activates the cleaning program.
  • the items to be washed 155, 160 are cleaned.
  • the drying process begins.
  • a droplet sensor is implemented with the camera 105, in particular based on a reflection measurement or refraction measurement on the illuminated windscreen in front of the camera 105 for the interior of the washing machine.
  • the drying phase of the active cleaning program can be dynamically adapted to the prevailing wetting situation in order to achieve a better drying result.
  • FIG. 1 An image section 170 around the camera 105 is marked in FIG. 1, which is described in more detail below with reference to FIGS.
  • FIG. 2 shows a schematic representation of a cleaning device 100 with a camera 105 according to a further exemplary embodiment, which can be the cleaning device 100 described in FIG.
  • An interior lighting 200 for the washing compartment is shown in FIG.
  • the washing compartment interior lighting 200 is switched on, for example, when the door 110 is open and for other applications of the camera 105.
  • the washing compartment interior lighting 200 is preferably switched off.
  • the wash chamber interior light 200 is preferably deactivated in order to maximize the image contrast between refraction on the droplets and the background.
  • FIG. 3 shows a schematic detailed illustration of a camera 105 in a door 110 of a cleaning device 100 according to an exemplary embodiment. This can be the indicated image section of the cleaning device 100 shown in FIG. Extensions to the hardware components of the camera 105 that are useful but optional for drop detection are outlined in FIG. According to one exemplary embodiment, recesses 301 are provided in the camera housing 125 for light sources 300 that can be switched as required, through which visible or infrared light beams 305 can be coupled laterally into the protective pane 130 .
  • the light beams 305 are coupled in such a way that the effect of total internal (diffuse) reflection in the protective pane 130 is achieved, ie no coupled light that could be detected by the camera sensor 310 breaks out in an unwetted, clean protective pane 130 .
  • the protective pane 130 has a first surface 320 which is directed towards the interior of the cleaning device 100 and which is curved, for example, for example in the form of a spherical cap.
  • the protective pane 130 has a second surface 330 which is in particular formed equidistantly from the first surface 320 .
  • the protective pane 130 is closed off by a circumferential side surface 340 which connects the first 320 surface and the second surface 330 and encloses the protective pane 130 in an approximately ring-like manner.
  • This side face 340 has one or more in-coupling sections 360 at which the light beams 305 emitted by the light sources 300 can be in-coupled into the protective pane 130 .
  • the side surface 340 has, in particular, a uniformly diffuse, planar surface; For this purpose, the surface can be roughened, for example by sandblasting,
  • a light source 300 is aligned with respect to the associated coupling-in section 360 in such a way that the main axis of the light beam 305 or light beam bundle emitted by the light source 300 runs perpendicularly or essentially perpendicularly to the surface of the coupling-in section 360 . In this way, as much light as possible is coupled uniformly into the protective pane 130 .
  • the opening angle 350 of the light beam 305 that widens to form a light beam bundle, on the one hand, and the arrangement of the light source 300 relative to the coupling section 360, on the other hand, are preferably selected such that when the light is coupled into the protective pane 130, the protective pane extends at least approximately over its entire width between the first surface 320 and second surface 330 is illuminated by the light beam.
  • FIG. 3A shows a schematic cross-sectional drawing in the area of opening 370 in door inner panel 120 for an exemplary embodiment corresponding to FIG.
  • a homogeneous illumination of the protective pane 130 can thus be achieved.
  • FIG 4 shows a schematic detailed representation of a camera 105 in a door 110 of a cleaning appliance 100. This can be the indicated image section of the cleaning appliance 100 shown in Figure 1 or the camera 105 described in Figure 3.
  • a cooling device 410 indicated schematically here.
  • a small fan can be used synergistically both for cooling the protective pane 130 of the camera 105 and for other purposes, in particular for dehumidifying an automatic dosing system of the cleaning device 100 .
  • the protective pane 130 and/or the camera housing 125 is supplemented with cooling fins, which increase the surface on which the air flow can act.
  • active cooling can also be implemented using Peltier elements.
  • the waste heat that is dissipated either to the outer door panel 115 or even to the inner door panel 120 must be taken into account.
  • the distance to the camera opening in the inner door panel 120 is maximized by means of a simple thermal coupling, a so-called heat pipe, in order to avoid thermal feedback and thus drops in efficiency.
  • a third cooling option is water cooling with fresh water if the cleaning device 100 is not operated on a hot water connection.
  • a small membrane pump is used for this purpose in order to circulate a small water flow from a water bag, for example filled with cool fresh water, on the camera housing 125 to be cooled.
  • FIG. 5 shows a camera image with condensed drops 400 according to an embodiment.
  • the camera image was recorded using a camera, for example, as described with reference to the previous figures.
  • the washing chamber interior lighting typically one or more LEDs 200 arranged on an outer wall of the washing compartment
  • the drops 400 are thus shown as light, round areas in front of an otherwise dark background 500.
  • Such areas can be detected and evaluated with a suitable image evaluation. For example, a size, a shape and/or a number of surfaces is recorded and evaluated for this purpose.
  • FIG. 6 shows a schematic representation of a control device 600 of a cleaning device according to an exemplary embodiment.
  • the control device 600 can be used, for example, in the cleaning device described with reference to FIG. 1 in connection with a camera 105 that is or can be arranged in an interior space of the cleaning device. Using the controller 600, the drying process of the cleaning device can be adjusted.
  • the control device 600 is connected to the camera 105 via an interface and to a drying device 605 via a further interface when it is ready for use.
  • the drying device 605 is designed to carry out or control a drying process.
  • the camera 105 is designed to record an image and to provide an image signal 610 representing the image.
  • the control device 600 is designed to provide an adjustment signal 615 for adjusting the drying process to the drying device 605.
  • the adaptation signal 615 is suitable for lengthening the drying process, for changing a drying performance of the drying process, or for ending the drying process.
  • the control device 600 has a reading device 620 , a determination device 625 , a provision device 630 and optionally an output device 635 .
  • the reading-in device 620 is designed to read in the image signal 610 .
  • the determination device 625 is designed to use the image signal 610 to determine a drop signal 640 that represents a characteristic of drops on the protective pane of the camera 105 that are depicted in the image.
  • the drop signal 640 indicates a number and/or a size of the drops imaged in the image.
  • the provision device 630 is designed to provide the adjustment signal 615 for adjusting the drying process using the droplet signal 640 .
  • the optional output device 635 is designed to output an activation signal 645, a deactivation signal 650 and/or a cooling signal 655.
  • control device 600 is designed to output activation signal 645 to an interface to light source 300 in order to activate light source 300 and thereby protect the protective screen of the Camera 105 to illuminate or illuminate.
  • the image is captured by camera 105 while light source 300 is activated.
  • the control device 600 is designed according to one exemplary embodiment to output the deactivation signal 650 to an interface to the washing compartment interior lighting 200 of the cleaning appliance in order to deactivate the washing compartment interior lighting 200.
  • the image is recorded by the camera 105 while the interior lighting 200 of the washing compartment is deactivated.
  • the control device 600 is designed according to one embodiment to output the cooling signal 655 to an interface to the cooling device 410 in order to activate the cooling device in order to cool the protective pane of the camera 105 . This increases the condensation of drops on the protective glass of the camera 105.
  • control device 600 is designed to cause camera 105 to record the image or to read in image signal 610 after activation signal 645, deactivation signal 650 and cooling signal 655 have been output.
  • the reading device 620 is designed to read in a further image signal 660 via the interface to the camera 105 .
  • the additional image signal 660 represents an additional image recorded by the camera 105 .
  • the further image is captured while the washing compartment interior lighting 200 is activated and the light source 300 is deactivated.
  • the determination device 625 is designed to determine a type of loading of the cleaning appliance or to determine a loading signal 665 representing the type of loading using the further image signal 660 . For example, a quantity of the items to be washed or a material of the items to be washed is determined for this purpose.
  • the provision device 630 is designed to provide the adjustment signal 615 for adjusting the drying process using the loading signal 665 .
  • FIG. 7 shows a flow chart of a method 700 for adapting a drying process in a cleaning device according to an exemplary embodiment. The method 700 can be carried out, for example, in connection with a cleaning device, as has been described with reference to the previous figures.
  • the method 700 includes a step 705 of reading in an image signal via an interface to the camera, the image signal representing an image recorded by the camera. Furthermore, the method 700 includes a step 710 of determining a drop signal using the image signal, the drop signal representing a characteristic of drops imaged in the image. In a step 715 of providing, an adjustment signal for adjusting the drying process using the droplet signal is provided.
  • the method 700 optionally includes a step 720 of outputting an activation signal to an interface to a light source for illuminating a protective pane of the camera in order to activate the light source.
  • a deactivation signal is output to an interface to an interior lighting of the washing compartment of the cleaning appliance, as a result of which the interior lighting of the washing compartment is deactivated.
  • a cooling signal is sent to an interface to a cooling device for cooling the protective pane of the camera, as a result of which the cooling device is activated.
  • steps 705, 710 can be repeated continuously in order to continuously obtain information about a current drying status.
  • the drying process can be adjusted in step 715 if this is suitable for optimizing the drying process.
  • successively determined items of information about the drying state can be compared with one another and in step 715 the drying process can be adjusted using a comparison result of the information about the drying states.
  • a further image signal is read in and when the step of determining 710 is carried out, a load signal is determined using the further image signal.
  • the loading signal indicates a type of loading of the cleaning device. In this case, the loading signal is used in the providing step in order to determine and provide the adjustment signal.
  • FIG. 8 shows a flow chart of a method for adapting a drying process in a cleaning device according to an exemplary embodiment. That The method can be carried out, for example, in connection with a cleaning device, as has been described with reference to the preceding figures. The method can represent an expansion of the method steps described with reference to FIG.
  • Block 800 marks a state in which the cleaning appliance has finished cleaning the items to be washed and the drying phase in the cleaning appliance now begins in order to dry the items to be washed.
  • the active cooling is activated in block 805 in order to cool the protective pane so that the condensation of drops on the protective pane is increased.
  • the system of the cleaning device checks whether the operator has activated accelerated drying.
  • block 815 the active drying is activated and then in block 820 the periodic drop detection is started. If the operator has not activated accelerated drying, block 820 is entered directly, where the periodic drop detection is started.
  • the wash chamber courtesy light is enabled, it is disabled.
  • the interior lighting of the washing compartment is deactivated, for example, via a deactivation signal which is output by an output device to an interface to the interior lighting of the washing compartment.
  • the light sources for illuminating the protective pane are activated.
  • the activation of the light sources is also controlled via the output device, for example, in that the output device in the control device of the cleaning device provides or outputs an activation signal to an interface to the light sources.
  • a camera image is captured by the camera.
  • the light sources are deactivated again in block 840.
  • the system then jumps to block 845.
  • the camera image is analyzed.
  • the average brightness, the number or size of the bright areas, so-called blobs, and the brightness distribution in the histogram are determined.
  • the system of the cleaning device checks whether the values have fallen compared to the previous run and/or whether changes are still to be expected based on information from the camera.
  • a block 860 provides further information from the camera to the block 850 .
  • This information includes, for example, the detected degree of loading and the materials, whether, for example, items to be washed made of plastic are present in the cleaning appliance. If the values have fallen or changes are still to be expected, after a short waiting time in block 855 the system jumps back to block 820. In block 820, the periodic drop detection is restarted and a camera image is created again.
  • block 850 jumps to block 865 .
  • block 865 it is checked whether drops are still visible. If no drops are evident, block 870 is entered where active drying is deactivated. Subsequently, in block 875 the active cooling is deactivated if it was previously activated in block 805 .
  • block 885 is entered. In block 885 it is checked whether there is active drying. If there is no active drying, block 890 jumps to block 875 after a short waiting time. The active cooling is deactivated there if it was previously activated in block 805 . In block 880 the drying process is then terminated. If it is determined in block 885 that there is active drying, then in block 895 it is checked whether the operator has activated the accelerated drying. If he has activated it, block 870 is jumped to where the active drying is deactivated. Thereafter, a jump is made to blocks 870, 875 and 880 as previously described.
  • active cooling is activated at the start of or shortly before the drying phase in block 805 in order to support the condensation of drops on the protective pane.
  • an image is periodically recorded with activated light sources (block 830), but without activated interior lighting (block 825), and e.g. the average brightness, the number and/or size of the bright areas or the brightness distribution in a histogram, etc. of the image determined in block 845. As expected, all of these values will decrease over the course of the measurements until no more drops can be seen. In this case, after a small time allowance in block 855, the drying phase can be completed at the optimum point in time. The energy for an active drying device can thus be saved.
  • the active drying unit can be activated at the start of the drying phase in block 815 and, if this sensor detects the end of drying, also be deactivated again early in block 870 .
  • drying sensor presented here can be used to limit the running time of the drying unit to a minimum. Last but not least, these aspects also promote customer benefit.

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Abstract

Un procédé de réglage d'un processus de séchage dans un appareil de nettoyage qui comprend une caméra (105) destinée à capturer un intérieur de l'appareil de nettoyage comprend une étape consistant à lire un signal d'image (610) par le biais d'une interface avec la caméra (105), le signal d'image (610) représentant une image enregistrée par la caméra (105), une étape consistant à déterminer un signal de goutte (640) à l'aide du signal d'image (610), le signal de goutte (640) représentant une caractéristique de gouttes représentées dans l'image, et une étape consistant à fournir un signal de réglage (615) pour régler le processus de séchage à l'aide du signal de goutte (640).
EP22720456.7A 2021-04-22 2022-04-07 Procédé et dispositif de réglage d'un processus de séchage dans un appareil de nettoyage, caméra, et appareil de nettoyage Pending EP4326131A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021110179.4A DE102021110179A1 (de) 2021-04-22 2021-04-22 Verfahren und Vorrichtung zum Anpassen eines Trocknungsvorganges in einem Reinigungsgerät, Kamera und Reinigungsgerät
PCT/EP2022/059167 WO2022223302A1 (fr) 2021-04-22 2022-04-07 Procédé et dispositif de réglage d'un processus de séchage dans un appareil de nettoyage, caméra, et appareil de nettoyage

Publications (1)

Publication Number Publication Date
EP4326131A1 true EP4326131A1 (fr) 2024-02-28

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EP22720456.7A Pending EP4326131A1 (fr) 2021-04-22 2022-04-07 Procédé et dispositif de réglage d'un processus de séchage dans un appareil de nettoyage, caméra, et appareil de nettoyage

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EP (1) EP4326131A1 (fr)
CN (1) CN117177698A (fr)
DE (1) DE102021110179A1 (fr)
WO (1) WO2022223302A1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003235781A (ja) * 2002-02-19 2003-08-26 Matsushita Electric Ind Co Ltd 食器洗い乾燥機
DE10210842A1 (de) 2002-03-12 2003-09-25 Electrolux Home Prod Corp Vorrichtung und Verfahren zur Erfassung des Trockengrades in einem Haushaltsgerät
DE102016106430A1 (de) * 2015-04-28 2016-11-03 Miele & Cie. Kg Geschirrspülmaschine
DE102017212333A1 (de) 2017-07-19 2019-01-24 BSH Hausgeräte GmbH Haushaltsgeschirrspülmaschine und Verfahren zum Betreiben einer Haushaltsgeschirrspülmaschine
DE102018209973A1 (de) 2018-06-20 2019-12-24 BSH Hausgeräte GmbH Geschirrspülmaschine, Verfahren zum Betreiben einer Geschirrspülmaschine und Computerprogrammprodukt
DE102019100190A1 (de) * 2019-01-07 2020-07-09 Miele & Cie. Kg Haushaltsgerät, insbesondere Geschirrspülmaschine

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DE102021110179A1 (de) 2022-10-27
WO2022223302A1 (fr) 2022-10-27
CN117177698A (zh) 2023-12-05

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