DE102016225609A1 - Washer dryer and system for cleaning and drying of laundry and method for their operation - Google Patents

Abstract

The invention relates to a method for treating laundry 4 in a washer-dryer 1, comprising a container 2 for receiving laundry 4, a loading sensor 3 for determining the load with laundry 4, a control device 5, an internal or external display device 6, and an the communication device 7 connected to the control device 5 for connecting the control device 5 to the Internet, so that the control device 5 is able to receive data from the Internet, the method comprising the following steps: (a) determining a weight W of the laundry 4 im Container 2 before a drying phase by evaluation of signals of the loading sensor 3 (b) determination of a weight Wder laundry 4 in the container 2 at the beginning of a drying phase by evaluation of signals of the loading sensor 3. (c) calculation of the difference weight ΔW = (WW) by the control device 5; (d) Receiving weather data D 'to current, historical and / or zuk future local weather conditions from the Internet through the communication device 7, wherein the steps (a) to (d) are performed i-fold over a predetermined period Δt, the data W, W, ΔW and D 'are respectively stored in the controller 5, and where i ≥ 5; and (e) evaluating the received weather data and the difference weights ΔW by the control device 5 with regard to information on the composition of a laundry, in particular laundry 4 not suitable for a drying phase, the course of a drying phase and / or suggestions for a washing and drying time for a drying phase suitable laundry 4; and (f) displaying the information by the display device 6. The invention also relates to a laundry dryer, a laundry cleaning and drying system, and a method of operating this system.

Description

The invention relates to a washer-dryer and a system for cleaning and drying laundry as well as methods for their operation. The invention particularly relates to a washer-dryer comprising a container for receiving laundry, a load sensor for determining the load of laundry, a control device, an internal or external display device, and a communication device connected to the control device for connecting the control device to the Internet, such that the controller is capable of receiving data from the Internet. The invention also relates to a system for cleaning and drying laundry, comprising a dryer and a washing machine, each containing a container for receiving laundry and an internal or external display device. Finally, the invention relates to methods for operating the washer-dryer and the system.

Although many textiles are now suitable for use in a dryer, there are some, especially natural, types of fibers that, due to their delicate structure, can only be dried outdoors in the open air. In order to obtain a satisfactory result in terms of amount and degree of drying process, it is important to wait for favorable times for the environmental conditions with appropriate values of temperature, humidity and wind strength to wash the laundry and let dry in the fresh air. However, due to insufficient information or convenience, many households have not taken the path of air drying and neglected it. This can lead to the optimum timing for air drying passing unused. As a result, the stock of available textiles is reduced, thus reducing the choices for consumers looking for matching clothing.

Due to modern sensor technology it is possible to measure the weight of the laundry in the washing machine or in the dryer. In addition, so-called smart home technology also allows home appliances to be connected to the Internet. Washing machines and dryers with built-in sensor technology for measuring the weight of laundry, which has been introduced into a container of the device, are already known.

This is how the publication describes DE 10 2015 208 648 A1 a method for determining the laundry mass when introduced into a laundry treatment machine, in particular a washing machine, a washer-dryer or a tumble dryer, with a resiliently supported in a housing at least two with respect to the center of gravity intersecting arranged points resiliently supported system of a carrier and a therein mounted laundry drum and with a device for detecting the displacement of the vibrating system relative to the housing, wherein with independent physical means on the one hand detects the way of lowering the oscillating system from the rest position and on the other hand, the direction and angle of an inclination of the oscillating system relative to its normal position in rest position and the recorded deviations of the subsidence and the inclination are used together to calculate the mass introduced.

The publication EP 2 113 603 A describes a method for controlling a drying process of a clothes dryer equipped with a laundry dryer, the method comprising at least the steps of detecting a load weight by means of the load sensor and determining a moisture measure from the detected load weight.

The publication EP 10 2014 214 836 A1 describes a method for operating a domestic appliance, comprising the following method steps: selecting or setting operating parameters for a intended operation of a domestic appliance operating program by means of a mobile terminal, transmitting the set or selected operating parameters to the household appliance, and storing the set or selected Operating parameters in a memory of the household appliance and assigning the set or selected operating parameters to an input means of the household appliance, so that by operating the input means, the household appliance, controlled by an electronic control device of the household appliance, performs the operating program based on the set or selected operating parameters.

The publication DE 10 2012 200 293 A1 describes a method for controlling a household appliance, wherein the household appliance is at least temporarily connected to a network in which a measured value or a state is transmitted via the network to the household appliance and the household appliance is controlled by means of the measured value or the state. In one embodiment, the condition includes or is based, inter alia, on a present or predicted weather.

Based on this prior art, it was an object of the present invention to provide a household appliance or a system of household appliances for the treatment of laundry, the Optimizing the air drying of laundry in terms of quality and quantity. Preferably, an environmentally friendly and energy-saving operation of the household appliances should be possible. In addition, methods for operating the household appliance or the system of household appliances are to be provided.

The solution of this object is achieved according to this invention by a washer-dryer and a system for cleaning and drying laundry, comprising a dryer and a washing machine, and method for operating the washer-dryer and the system with the features of the corresponding independent claims. Preferred embodiments of the method according to the invention and of the system according to the invention are set out in the respective dependent claims. Preferred embodiments of the washer-dryer according to the invention and of the system and the method for their operation correspond to preferred embodiments of the system according to the invention and vice versa, although this is not explicitly stated herein. This relationship results in particular from the fact that the inventive methods require devices which have a washing function and a drying function alone or in combination.

1. (a) Ermitteln eines Gewichtes W₁ ⁱ der Wäsche im Behälter vor einer Trocknungsphase durch Auswertung von Signalen des Beladungssensors;
2. (b) Ermitteln eines Gewichtes W₂ ⁱ der Wäsche im Behälter zu Beginn einer Trocknungsphase durch Auswertung von Signalen des Beladungssensors;
3. (c) Berechnung des Differenzgewichtes ΔWⁱ = (W₁ ⁱ - W₂ ⁱ) durch die Steuereinrichtung;
4. (d) Empfangen von Wetterdaten Dⁱ zu aktuellen, historischen und/oder zukünftigen lokalen Wetterbedingungen aus dem Internet durch die Kommunikationseinrichtung; wobei die Schritte (a) bis (d) über einen vorgegebenen Zeitraum Δt i-fach durchgeführt werden, die Daten W₁ ⁱ, W₂ ⁱ, ΔWⁱ und Dⁱ jeweils in der Steuereinrichtung gespeichert werden, und wobei i ≥ 5 ist, vorzugsweise i ≥ 20 ist; und
5. (e) Auswerten der empfangenen Wetterdaten und der Differenzgewichte ΔWⁱ durch die Steuereinrichtung in Hinblick auf Informationen zur Zusammensetzung eines Wäschebestandes, insbesondere auf nicht für eine Trocknungsphase geeignete Wäsche, den Ablauf einer Trocknungsphase und/oder Vorschläge für einen Wasch- und Trocknungszeitpunkt von nicht für eine Trocknungsphase geeigneter Wäsche; und
6. (f) Anzeige der Informationen durch die Anzeigevorrichtung.

The invention thus relates to a method for treating laundry in a laundry dryer, comprising a container for receiving laundry, a loading sensor for determining the load with laundry, a control device, an internal or external display device, and a communication device connected to the control device for connecting the controller to the Internet, such that the controller is capable of receiving data from the Internet, the method comprising the steps of:

1. (A) determining a weight W ₁ ^{i of} the laundry in the container before a drying phase by evaluating signals of the load sensor;
2. (b) determining a weight W ₂ ^{i of} the laundry in the container at the beginning of a drying phase by evaluating signals of the loading sensor;
3. (c) calculating the difference weight ΔW ⁱ = (W ₁ ⁱ -W ₂ ⁱ ) by the control device;
4. (d) receiving weather data D ⁱ on current, historical and / or future local weather conditions from the Internet by the communication device; wherein steps (a) to (d) are performed i-fold over a predetermined period of time Δt, the data W ₁ ⁱ , W ₂ ⁱ , ΔW ⁱ and D ^{i are} respectively stored in the controller, and wherein i ≥ 5, preferably i is ≥ 20; and
5. (e) evaluating the received weather data and the difference weights ΔW ⁱ by the control device with regard to information on the composition of a laundry, in particular not suitable for a drying phase laundry, the end of a drying phase and / or proposals for a washing and drying time of not for a drying phase of suitable laundry; and
6. (f) display the information by the display device.

The term "drying phase" as used herein refers in particular to a drying phase carried out in a washer-dryer or in a dryer. In contrast, drying performed outside of such a device is referred to herein as air drying.

According to the invention, it is important that in step (a) the weight W ₁ ^{i of} the laundry in the container is determined before a drying phase. This can be done at different times prior to the drying phase, for example at the beginning when there is only dry laundry in the container, or towards the end of a washing phase. If free wash liquor or water is present in the receptacle, no weight determination is preferably carried out.

In a preferred embodiment of the method for its operation, step (a) is carried out after a wash phase with the wash, wherein the wash phase may also include a final spin phase. In this case, the laundry is usually obtained in a wet state in which it is subjected to drying, for example, a drying phase in a dryer. In step (b), the term "at the beginning of a drying phase" then preferably means a time before switching on a heating device for heating a process air used for drying.

Moreover, a method is preferred in which, in step (e), the drying phase information includes the duration of the drying phase under the current and / or future local weather conditions.

Further, it is preferred if the control device from the received data and the difference in weight .DELTA.W ⁱ calculates an estimated drying time for air drying of the cleaned items to be treated. From the determined values for the local air temperature, humidity as well as the average wind force can be with The controller uses appropriate algorithms to calculate the time required to move a certain amount of water. This calculated time period can be communicated to the user to assist him in his daily planning for further activities.

In addition, it is advantageous if the control device determines at least one suitable time for air drying of the cleaned laundry from the received data on future local weather conditions. The data of weather services for weather forecasting can be made available to the control device via the Internet so that it can determine favorable times or spaces for air drying. These weather-related periods can be further compared with the user behavior, so that particularly suitable times for the user, such. Weekends or holidays, as cleaning dates with subsequent air drying can be specified. This allows a user of the washer-dryer and the system discussed below to better plan washing and drying processes.

It should be noted at this point that functions of the control device can also be taken over by an external operating unit, for example a mobile control center described herein.

To get the most accurate results, the period Δt should be long enough. It has proved to be particularly advantageous that the period Δt is at least one month.

From the data obtained then it can be determined whether a largely constant inventory of laundry not suitable for machine drying is present in the laundry inventory of the user. On the basis of the drying time required for this, favorable times for air drying can be determined from future weather data. In the case of fairly irregular difference weights, the current weather conditions and the immediately anticipated weather forecasts are used to determine suitable air drying dates. In general, the control device can determine a typical inventory of laundry that is suitable for air drying via an evaluation of the difference weights of defined past periods. If the difference weights move over a longer period of time within a defined range, then an estimated value for the inventory of laundry suitable for air drying can be determined from this. This inventory and the period of time required for air drying may be used, in correlation with future weather data, as a guideline for suitable cleaning schedules to facilitate the user's scheduling.

In a preferred embodiment of the method according to the invention, the control device calculates the amount of energy saved and / or the costs saved from the information of step (e) about an expected drying time for air drying and the difference weight ΔW ⁱ . The energy used in air drying comes from natural resources and can therefore be saved by the user. In addition to the economic advantage for the user, there are also environmental benefits for the environment, since the effort required for the provision of electrical energy, for example by burning fossil fuels eliminated. The control device may preferably receive the current energy prices via the connection device from the Internet. Furthermore, it is possible to calculate the savings depending on future weather conditions.

In the method according to the invention, it is preferred that the communication device receives current local data on temperature, humidity and wind strength via the Internet. These parameters essentially determine the drying rate of the objects to be treated in the open air. The higher the outside air temperature and the lower the humidity, the higher the drying rate, since the material flow density is proportional to the substance concentration gradient. Furthermore, the wind force via the forced convection significantly influences the rate of removal of the water molecules.

The connection of the communication device to the Internet can be direct or indirect. Thus, the communication device as such can be connected to a WLAN. Preferably, the communication device is connected via a mobile terminal to the Internet. The communication device is then generally wirelessly connected via a short-range link to the mobile terminal, which then connects to the Internet. The mobile terminal may in particular be a smartphone or a tablet computer. If the mobile terminal is also used to control other household appliances, it is referred to herein as a mobile control center.

The communication between the controller and the user is ultimately preferably via a so-called HMI interface (Human Machine Interface), via the smartphone or a web portal, for example by e-mail or SMS.

According to the invention, it is preferred that the composition of the laundry inventory is additionally input by a user of the washer dryer, so that the controller can make a comparison with the evaluation of step (e).

Moreover, it is advantageous if the control device derives a typical user behavior for the drying of the cleaned laundry from the stored difference weights of defined past periods. From the time course of the determined difference weights of a past period can be determined, for example, on which days the user preferably performs a cleaning of his laundry. By comparison with predicted weather conditions, it is therefore also possible to specify favorable dates for cleaning. In particular, it is also conceivable for larger fluctuating difference weights ΔW ⁱ to take into account the period of suitable weather conditions, in order, for example, to benefit from smaller time intervals with good weather conditions with a low stock of laundry to be dried.

1. (a) Ermitteln eines Gewichtes W₁ ⁱ der Wäsche im Behälter vor einer Trocknungsphase durch Auswertung von Signalen des Beladungssensors;
2. (b) Ermitteln eines Gewichtes W₂ ⁱ der Wäsche im Behälter zu Beginn einer Trocknungsphase durch Auswertung von Signalen des Beladungssensors;
3. (c) Berechnung des Differenzgewichtes ΔWⁱ = (W₁ ⁱ - W₂ ⁱ) durch die Steuereinrichtung;
4. (d) Empfangen von Wetterdaten Dⁱ zu aktuellen, historischen und/oder zukünftigen lokalen Wetterbedingungen aus dem Internet durch die Kommunikationseinrichtung; wobei die Schritte (a) bis (d) über einen vorgegebenen Zeitraum Δt i-fach durchgeführt werden, die Daten W₁ ⁱ, W₂ ⁱ, ΔWⁱ und Dⁱ jeweils in der Steuereinrichtung gespeichert werden, und wobei i ≥ 5 ist, vorzugsweise i ≥ 20 ist; und
5. (e) Auswerten der empfangenen Wetterdaten und der Differenzgewichte ΔWⁱ durch die Steuereinrichtung in Hinblick auf Informationen zur Zusammensetzung eines Wäschebestandes, insbesondere zu nicht für eine Trocknungsphase geeignete Wäsche, den Ablauf einer Trocknungsphase und/oder Vorschläge für einen Wasch- und Trocknungszeitpunkt von nicht für eine Trocknungsphase geeigneter Wäsche; und
6. (f) Anzeige der Informationen durch die Anzeigevorrichtung.

The invention also relates to a washer-dryer comprising a container for receiving laundry, a loading sensor for determining the load with laundry, a control device, an internal or external display device, and a communication device connected to the control device for connecting the control device to the Internet, then in that the control device is able to receive data from the Internet, wherein the control device and the communication device are set up for carrying out a method for treating the laundry, comprising the following steps:

1. (A) determining a weight W ₁ ^{i of} the laundry in the container before a drying phase by evaluating signals of the load sensor;
2. (b) determining a weight W ₂ ^{i of} the laundry in the container at the beginning of a drying phase by evaluating signals of the loading sensor;
3. (c) calculating the difference weight ΔW ⁱ = (W ₁ ⁱ -W ₂ ⁱ ) by the control device;
4. (d) receiving weather data D ⁱ on current, historical and / or future local weather conditions from the Internet by the communication device; wherein steps (a) to (d) are performed i-fold over a predetermined period of time Δt, the data W ₁ ⁱ , W ₂ ⁱ , ΔW ⁱ and D ^{i are} respectively stored in the controller, and wherein i ≥ 5, preferably i is ≥ 20; and
5. (e) evaluating the received weather data and the difference weights ΔW ⁱ by the control device with regard to information on the composition of a laundry, in particular not suitable for a drying phase laundry, the end of a drying phase and / or proposals for a washing and drying time of not for a drying phase of suitable laundry; and
6. (f) display the information by the display device.

The load sensor used according to the invention is not limited as long as the weight of the laundry can be determined directly or indirectly. For example, it is possible to reduce the weight of the laundry, i. To determine the loading of laundry, on the basis of a suction behavior of the laundry in a wetting phase before the actual washing of the laundry. For this purpose, an amount of water filled into a tub of a washer-dryer or, as mentioned below, of a washing machine is generally compared with an amount of free water. This can be done for example by measuring the hydrostatic pressure with a pressure sensor. As a load sensor can thus also act a pressure sensor. For such a determination the knowledge of the material composition of the laundry is advantageous. However, it is precisely the present invention that enables a determination of a laundry inventory or proportion of laundered laundry of such a material that is suitable for air drying, i. a drying outside of the washer dryer, is provided.

It is simpler and thus preferred according to the invention if the loading sensor is a weight sensor.

Moreover, a washer-dryer according to the invention is preferred in which the control device and the communication device are set up to carry out step (a) after a washing phase with the wash, wherein the washing phase may also include a final spin-drying phase. The laundry is then generally in a moist condition.

1. (a) Ermitteln eines Gewichtes W₁ ⁱ der Wäsche im ersten Behälter durch Auswertung von Signalen des ersten Beladungssensors;
2. (b) Ermitteln eines Gewichtes W₂ ⁱ der Wäsche im zweiten Behälter durch Auswertung von Signalen des zweiten Beladungssensors;
3. (c) Berechnung des Differenzgewichtes ΔWⁱ = (W₁ ⁱ - W₂ ⁱ) durch die erste oder zweite Steuereinrichtung;
4. (d) Empfangen von Wetterdaten Dⁱ zu aktuellen, historischen und/oder zukünftigen lokalen Wetterbedingungen aus dem Internet durch die erste und/oder zweite Kommunikationseinrichtung; wobei die Schritte (a) bis (d) über einen vorgegebenen Zeitraum Δt i-fach durchgeführt werden, die Daten W₁ ⁱ, W₂ ⁱ, ΔWⁱ und Dⁱ jeweils in der ersten und/oder zweiten Steuereinrichtung gespeichert werden, und wobei i ≥ 5 ist, vorzugsweise i ≥ 20 ist; und
5. (e) Auswerten der empfangenen Wetterdaten und der Differenzgewichte ΔWⁱ durch die erste und/oder zweite Steuereinrichtung in Hinblick auf Informationen zur Zusammensetzung eines Wäschebestandes, insbesondere zu nicht für eine Trocknungsphase geeignete Wäsche, den Ablauf einer Trocknungsphase und/oder Vorschläge für einen Wasch- und Trocknungszeitpunkt von nicht für eine Trocknungsphase geeigneter Wäsche; und
6. (f) Anzeige der Informationen durch die interne oder externe Anzeigevorrichtung des Trockners und/oder der Waschmaschine.

The invention also relates to a system for cleaning and drying laundry, comprising a dryer and a washing machine, each containing a container for receiving laundry and an internal or external display device, wherein the dryer a first control device, one to the first control device connected first communication device for direct or indirect connection of the first control device to the Internet, so that the first control device is able to receive data from the Internet, a first container for receiving laundry and a first loading sensor, and the washing machine a second Control device, one to the second control device connected second communication device for direct or indirect connection of the second control device to the Internet, so that the second control device is able to receive data from the Internet, a second container for receiving laundry and a second loading sensor, wherein in the case of external display device is a display device that is common to the dryer and the washing machine, and wherein the first and second control device and the first and second communication device are configured to carry out a method for treating the laundry, comprising the following steps:

1. (A) determining a weight W ₁ ^{i of} the laundry in the first container by evaluating signals of the first load sensor;
2. (b) determining a weight W ₂ ^{i of} the laundry in the second container by evaluating signals of the second loading sensor;
3. (c) calculating the difference weight ΔW ⁱ = (W ₁ ⁱ -W ₂ ⁱ ) by the first or second control means;
4. (d) receiving weather data D ⁱ on current, historical and / or future local weather conditions from the Internet by the first and / or second communication device; wherein the steps (a) to (d) are performed i-fold over a predetermined period Δt, the data W ₁ ⁱ , W ₂ ⁱ , ΔW ⁱ and D ^{i are} respectively stored in the first and / or second control means, and wherein i is ≥ 5, preferably i ≥ 20; and
5. (e) evaluating the received weather data and the difference weights ΔW ⁱ by the first and / or second control device with regard to information on the composition of a laundry, in particular laundry not suitable for a drying phase, the course of a drying phase and / or proposals for a washing and drying time of laundry not suitable for a drying phase; and
6. (F) display of the information by the internal or external display device of the dryer and / or the washing machine.

Thus, in the system according to the invention, the functions of a washer dryer are generally distributed over two separate devices, namely a washing machine and a dryer. However, this does not rule out that the system also contains a washer-dryer.

A system is preferred in which the first and / or second communication device is designed for wireless communication with the Internet. This can be done directly or indirectly. An indirect wireless communication with the Internet is, for example, when the first and / or second communication device is connected to a mobile terminal such as a smartphone or a tablet computer, which then connects to the Internet.

Very particularly preferred according to the invention is a system which contains a mobile control center, in which the external display device of dryer and / or washing machine, in particular of dryer and washing machine, is arranged, wherein the mobile control center is wirelessly connected to the first and the second communication device and connecting to the Internet via the mobile control center.

Finally, in accordance with the present invention, a system is preferred which includes an outdoor sensor for measuring local temperature, humidity, and wind force data in an outdoor area, the system being arranged to be matched with local weather conditions data from the Internet.

The washer-dryer or the devices of the system include an internal or external display device for displaying and / or calculating information determined and / or calculated by the control device (s) to a user. The display device may be an LCD or TFT display. In particular, the user can use the display information on the weight of the laundry to be treated after cleaning and before drying, show the difference weights calculated from .DELTA.W ^i, suggested dates for air drying, the expected drying time and energy savings.

1. (a) Ermitteln eines Gewichtes W₁ ⁱ der Wäsche im ersten Behälter durch Auswertung von Signalen des ersten Beladungssensors;
2. (b) Ermitteln eines Gewichtes W₂ ⁱ der Wäsche im zweiten Behälter durch Auswertung von Signalen des zweiten Beladungssensors;
3. (c) Berechnung des Differenzgewichtes ΔWⁱ = (W₁ ⁱ - W₂ ⁱ) durch die erste oder zweite Steuereinrichtung ;
4. (d) Empfangen von Wetterdaten Dⁱ zu aktuellen, historischen und/oder zukünftigen lokalen Wetterbedingungen aus dem Internet durch die erste und/oder zweite Kommunikationseinrichtung; wobei die Schritte (a) bis (d) über einen vorgegebenen Zeitraum Δt i-fach durchgeführt werden, die Daten W₁ ⁱ, W₂ ⁱ, ΔWⁱ und Dⁱ jeweils in der ersten und/oder zweiten Steuereinrichtung gespeichert werden, und wobei i ≥ 5 ist, vorzugsweise i ≥ 20 ist; und
5. (e) Auswerten der empfangenen Wetterdaten und der Differenzgewichte ΔWⁱ durch die erste und/oder zweite Steuereinrichtung in Hinblick auf Informationen zur Zusammensetzung eines Wäschebestandes, insbesondere zu nicht für eine Trocknungsphase geeignete Wäsche, den Ablauf einer Trocknungsphase und/oder Vorschläge für einen Wasch- und Trocknungszeitpunkt von nicht für eine Trocknungsphase geeigneter Wäsche; und
6. (f) Anzeige der Informationen durch die interne oder externe Anzeigevorrichtung des Trockners und/oder der Waschmaschine.

Finally, the subject of the invention is also a method for operating a system for cleaning and drying laundry, the system comprising a dryer and a washing machine, each containing a container for receiving laundry and an internal or external display device, and wherein the dryer a first control device, a first communication device connected to the first control device for direct or indirect connection of the first control device to the Internet, so that the first control device is capable of Receive data from the Internet, a first container for receiving laundry and a first loading sensor, and the washing machine, a second control device, connected to the second control means second communication device for directly or indirectly connecting the second control device to the Internet, so that the second control device is capable of receiving data from the Internet, a second container for receiving laundry and a second loading sensor, wherein in the case of an external display device, this is a dryer and the washing machine common display device, and wherein the first and second control means and the first and second communication means are arranged for carrying out a method for treating the laundry, comprising the following steps:

1. (A) determining a weight W ₁ ^{i of} the laundry in the first container by evaluating signals of the first load sensor;
2. (b) determining a weight W ₂ ^{i of} the laundry in the second container by evaluating signals of the second loading sensor;
3. (c) calculating the difference weight ΔW ⁱ = (W ₁ ⁱ -W ₂ ⁱ ) by the first or second control means;
4. (d) receiving weather data D ⁱ on current, historical and / or future local weather conditions from the Internet by the first and / or second communication device; wherein the steps (a) to (d) are performed i-fold over a predetermined period Δt, the data W ₁ ⁱ , W ₂ ⁱ , ΔW ⁱ and D ^{i are} respectively stored in the first and / or second control means, and wherein i is ≥ 5, preferably i ≥ 20; and
5. (e) evaluating the received weather data and the difference weights ΔW ⁱ by the first and / or second control device with regard to information on the composition of a laundry, in particular laundry not suitable for a drying phase, the course of a drying phase and / or proposals for a washing and drying time of laundry not suitable for a drying phase; and
6. (F) display of the information by the internal or external display device of the dryer and / or the washing machine.

The invention has numerous advantages. The inventive system and the washer-dryer according to the invention and the method for their operation have the advantage that over a longer, defined period can be determined whether regularly less laundry is machine dried than washed and a correlation of the information determined to the amount of each dried and washed objects with the current or historical weather data a statement about the typical amount of laundry for air drying can be made. In this way it is also possible to determine the amount of laundry not suitable for a machine dryer. In addition, suitable program routines can be used to record long-term user behavior. By linking to future weather data, the user of a washer-dryer or a dryer and a washing machine can be provided with suggestions for optimal times for treating laundry suitable for air-drying.

• 1 zeigt eine Ausführungsform für einen erfindungsgemäßen Waschtrockner, in dem ein erfindungsgemäßes Verfahren durchgeführt werden kann.
• 2 zeigt eine Ausführungsform für ein erfindungsgemäßes System, umfassend einen Trockner und eine Waschmaschine, in dem ein erfindungsgemäßes Verfahren durchgeführt werden kann.

Further details of the invention will become apparent from the following description of non-limiting embodiments of a washer-dryer according to the invention or an inventive system. Here, reference is made to the 1 and 2 ,

• 1 shows an embodiment of a washer-dryer according to the invention, in which a method according to the invention can be carried out.
• 2 shows an embodiment of a system according to the invention, comprising a dryer and a washing machine, in which a method according to the invention can be carried out.

1 shows an embodiment of a washer-dryer according to the invention 1 in which a method according to the invention can be carried out. The washer-dryer 1 contains a container 2 for receiving laundry 4 and a weight sensor 3 as a load sensor for determining a weight W ₁ ^{i of} the laundry 4 in the container 2 before a drying phase by evaluation of signals of the load sensor 3 , The washer-dryer 1 also includes a controller 5 as well as an internal and additionally an external display device 6 wherein the external display device 6 Also suitable for the selection and modification of treatment programs in the washer-dryer by a user. The external display device 6 is therefore a mobile control center in particular here 21 , Since it is in the washer-dryer 1 only one container 2 for receiving laundry 4 there will be in the container 2 also determined the weight W ₂ ⁱ .

2 shows an embodiment of a system according to the invention comprising a dryer 8th and a washing machine 9 in which a method according to the invention can be carried out. The functions of the washer dryer of 1 are thus distributed here on two devices.

The dryer 8th contains a first container 12 for receiving laundry 4 , a first loading sensor 13 , a first control device 10 , a first communication device 11 and an internal display device 19 ,

The washing machine 9 contains a second container 12 for receiving laundry 4 , a second loading sensor 17 , a second control device 14 , a second communication device 15 and an internal display device 20 ,

The dryer 8th is about the first communication device 11 wireless with the mobile control center 21 , which can be used for example in the form of a smartphone or a tablet computer connected. In addition, the washing machine 9 via the second communication device 15 wirelessly connected to the mobile control center 21, which connects to the Internet.

In the in 2 The system for cleaning and drying laundry is also an outdoor sensor 22 for measuring local data on temperature, humidity and wind force in an outdoor area. In this case, the system, in particular the first and second control device 10,14 of dryer and / or washing machine, or the mobile control center 21 set up for comparison with the data on local weather conditions from the Internet.

LIST OF REFERENCE NUMBERS

1

washer dryer

2

Container for holding laundry (in the washer-dryer)

3

Load sensor, weight sensor

4

Laundry

5

control device

6

Internal or external display device

7

communicator

8th

dryer

9

Washing machine

10

First control device (in the dryer)

11

First communication device (in the dryer)

12

First container for receiving laundry (in the dryer)

13

First load sensor (in the dryer)

14

Second control device (in washing machine)

15

Second communication device (in washing machine)

16

Second container for holding laundry (in washing machine)

17

Second load sensor (in washing machine)

18

External display device (of the system)

19

Internal display device of the dryer

20

Internal display device of the washing machine

21

Mobile control center containing the external display device of the system

22

Outdoor sensor for measuring local temperature, humidity and wind force data in an outdoor area

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102015208648 A1 [0004]
• EP 2113603 A [0005]
• EP 102014214836 A1 [0006]
• DE 102012200293 A1 [0007]

Claims (15)

Method for treating laundry (4) in a laundry drier (1), comprising a container (2) for receiving laundry (4), a loading sensor (3) for determining the load with laundry (4), a control device (5), an internal or external display device (6), and a communication device (7) connected to the control device (5) for connecting the control device (5) to the Internet, so that the control device (5) is able to access data from the Internet receiving, characterized in that the method comprises the following steps: (a) determining a weight W ₁ ^{i of} the laundry (4) in the container (2) before a drying phase by evaluating signals of the loading sensor (3); (b) determining a weight W ₂ ^{i of} the laundry (4) in the container (2) at the beginning of a drying phase by evaluating signals of the loading sensor (3); (c) calculating the difference weight ΔW ⁱ = (W ₁ ⁱ -W ₂ ⁱ ) by the control device (5); (d) receiving weather data D 'on current, historical and / or future local weather conditions from the Internet by the communication device (7); wherein steps (a) to (d) are performed i-fold over a predetermined period of time Δt, the data W ₁ ⁱ , W ₂ ⁱ , ΔW ⁱ and D ^{i are} respectively stored in the control means (5), and i ≥ 5 is; and (e) evaluating the received weather data and the difference weights ΔW ⁱ by the control device (5) with regard to information on the composition of a laundry, in particular laundry (4) not suitable for a drying phase, the course of a drying phase and / or suggestions for a laundry Washing and drying time of laundry not suitable for a drying phase (4); and (f) displaying the information by the display device (6). Method according to Claim 1 , characterized in that the step (a) is carried out after a washing phase with the laundry (4), wherein the washing phase may also include a final spin phase. Method according to Claim 1 or 2 characterized in that, in step (e), the drying phase information includes the duration of the drying phase under the current and / or future local weather conditions. Method according to one of Claims 1 to 3 , characterized in that the period .DELTA.t is at least one month. Method according to one of Claims 1 to 4 , characterized in that the control device (5) calculates the amount of energy saved and / or the costs saved from the information of step (e) over a probable drying time for air drying and the difference weight ΔW ⁱ . Method according to one of Claims 1 to 5 , characterized in that the communication device (7) receives current local data on temperature, humidity and wind strength over the Internet. Method according to one of Claims 1 to 6 , characterized in that the composition of the laundry is additionally input by a user of the washer dryer (1), so that the control device (5) can make a comparison with the evaluation of step (e). Washer dryer (1), comprising a container (2) for receiving laundry (4), a loading sensor (3) for determining the load with laundry (4), a control device (5), an internal or external display device (6), and a communication device (7) connected to the control device (5) for connecting the control device (5) to the Internet, so that the control device (5) is able to receive data from the Internet, characterized in that the control device (5 ) and the communication device (7) are arranged for carrying out a method for treating the laundry (4), comprising the following steps: (a) determining a weight W ₁ ^{i of} the laundry (4) in the container (2) before a drying phase Evaluation of signals of the loading sensor (30); (b) determining a weight W ₂ ^{i of} the laundry (4) in the container at the beginning of a drying phase by evaluating signals of the loading sensor (3); (c) calculating the difference weight ΔW ⁱ = (W ₁ ⁱ -W ₂ ⁱ ) by the control device (5); (d) receiving weather data D ⁱ on current, historical and / or future local weather conditions from the Internet by the communication device (7); wherein steps (a) to (d) are performed i-fold over a predetermined period of time Δt, the data W ₁ ⁱ , W ₂ ⁱ , ΔW ⁱ and D ^{i are} respectively stored in the control means (5), and i ≥ 5 is; and (e) evaluating the received weather data and the difference weights ΔW ⁱ by the control device (5) with regard to information on the composition of a laundry, in particular laundry (4) not suitable for a drying phase, the course of a drying phase and / or suggestions for a laundry Washing and drying time of laundry not suitable for a drying phase (4); and (f) displaying the information by the display device (6). Washer dryer (1) after Claim 8 , characterized in that the loading sensor (3) is a weight sensor. Washer dryer (1) after Claim 8 or 9 , characterized in that the control device (5) and communication device (7) are adapted to perform step (a) after a washing phase with the laundry (4), wherein the washing phase may also include a final spin phase. A laundry cleaning and drying system (8,9) comprising a dryer (8) and a washing machine (9) each having a container (12,16) for receiving laundry (4) and an internal or external display (19 , 20), characterized in that the dryer (8) comprises a first control device (10), a first communication device (11) connected to the first control device (10) for directly or indirectly connecting the first control device (10) to the Internet in that the first control device (10) is capable of receiving data from the Internet, a first container (12) for receiving laundry (4) and a first loading sensor (13), and the washing machine (9) second control device (14), a second communication device (15) connected to the second control device (14) for direct or indirect connection of the second control device (14) to the Internet, so that the second control device (14 ) is able to receive data from the Internet, a second container (16) for receiving laundry (4) and a second loading sensor (17), wherein in the case of an external display device (18) this one the dryer ( 8) and the washing machine (9) common display device (18,21), and wherein the first and second control means (10,14) and the first and second communication means (11,15) are adapted to carry out a method for treating the laundry (4) comprising the steps of: (a) determining a weight W ₁ ^{i of} the laundry (4) in the first container (12) by evaluating signals from the first loading sensor (13); (b) determining a weight W ₂ ^{i of} the laundry in the second container (16) by evaluating signals of the second loading sensor (17); (c) calculating the difference weight ΔW ⁱ = (W ₁ ⁱ -W ₂ ⁱ ) by the first or second control means (10, 14); (d) receiving weather data D 'from current, historical and / or future local weather conditions from the Internet through the first and / or second communication means (11, 15); wherein the steps (a) to (d) are carried out i-fold over a predetermined period Δt, the data W ₁ ⁱ , W ₂ ⁱ , ΔW ⁱ and D ⁱ respectively in the first and / or second control means (10, 14) and i is ≥ 5; and (e) evaluating the received weather data and the difference weights ΔW ⁱ by the first and / or second control device (10, 14) with regard to information on the composition of a laundry, in particular laundry (4) not suitable for a drying phase, the course of a Drying phase and / or proposals for a washing and drying time of laundry not suitable for a drying phase (4); and (f) displaying the information by the internal or external display (18, 19, 20) of dryer (8) and / or washing machine (9). System (8,9) after Claim 11 , characterized in that the first and / or second communication device (11,15) is designed for wireless communication with the Internet. System (8,9) after Claim 11 or 12 characterized in that it includes a mobile control center (21) in which the external display device (18) is located, the mobile control center (21) being wirelessly connected to the first and second communication devices (11, 15), and wherein the Connection to the Internet via the mobile control center (21) takes place. System (8,9) after one of Claims 11 to 13 , characterized in that the system (8,9) receives an outdoor sensor (22) for measuring local temperature, humidity and wind force data in an outdoor area and the system (8,9) is arranged to be matched with the local data Weather conditions from the Internet. Method for operating a system (8, 9) for cleaning and drying laundry (4), the system (8, 9) comprising a dryer (8) and a washing machine (9), each having a container (12, 16) for receiving laundry (4) and an internal or external display device (18, 19, 20), and wherein the dryer (8) has a first control device (10), a first communication device (11) connected to the first control device (10) ) for direct or indirect connection of the first control device (10) to the Internet, so that the first control device (10) is able to receive data from the Internet, a first container (12) for receiving laundry (4) and a first loading sensor (13), and the washing machine (9) a second control device (14), a second communication device (15) connected to the second control device (14) for directly or indirectly connecting the second control device (14) to the Internet, so in that the second control device (14) is capable of receiving data from the Internet, a second container (16) for receiving laundry (4) and a second loading sensor (17), wherein in the case of an external display device (18, 21) this is a display device (18) common to the dryer (8) and the washing machine (9), the method comprising the steps of: (a ) Determining a weight W ₁ ^{i of} the laundry (4) in the first container (12) by evaluating signals of the first loading sensor (13); (b) determining a weight W ₂ ^{i of} the laundry (4) in the second container (16) by evaluating signals of the second loading sensor (17); (c) calculating the difference weight ΔW ⁱ = (W ₁ ⁱ -W ₂ ⁱ ) by the first or second control means (10, 14); (d) receiving weather data D 'from current, historical and / or future local weather conditions from the Internet through the first and / or second communication means (11, 151); wherein the steps (a) to (d) are carried out i-fold over a predetermined period Δt, the data W ₁ ⁱ , W ₂ ⁱ , ΔW ⁱ and D ⁱ respectively in the first and / or second control means (10, 14) and i is ≥ 5; and (e) evaluating the received weather data and the difference weights ΔW ⁱ by the first and / or second control device (10, 14) with regard to information on the composition of a laundry, in particular laundry (4) not suitable for a drying phase, the course of a Drying phase and / or proposals for a washing and drying time of laundry not suitable for a drying phase (4); and (f) displaying the information by the internal or external display (18, 19, 20) of dryer (8) and / or washing machine (9).

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