DE102015108462A1 - Vacuum cleaner and base station for a vacuum cleaner - Google Patents

Abstract

The invention relates to a vacuum cleaner (1), in particular hand-held or automatically movable vacuum cleaner, with a Saugerstaubraum (2) and a blower (3), wherein the Saugerstaubraum (2) during a suction operation of the vacuum cleaner (1) for conveying suction material in the Saugerstaubraum (2) is fluidically connected to the fan (3). In order to create a vacuum cleaner (1) in which the user receives information about the filling level of a base dust chamber (12) of a base station (11) which can be connected to the suction dust space (2) in a particularly convenient manner, it is proposed that the vacuum cleaner (FIG. 1) has a data processing device (5) and a light source (6), wherein the light source (6) is controllable in dependence on a measured value relating to a state outside of the vacuum cleaner (1). Moreover, the invention relates to a base station (11) for cleaning and / or emptying a suction dust space (2) of a vacuum cleaner (1), in particular a passive base station (11), and a system comprising a vacuum cleaner (1) and a base station (11). ,

Description

Field of engineering

The invention relates firstly to a vacuum cleaner, in particular a hand-held or automatically movable vacuum cleaner, with a suction dust chamber and a fan, wherein the Saugerstaubraum during a suction operation of the vacuum cleaner for conveying suction material in the Saugerstaubraum is fluidly connected to the blower.

Furthermore, the invention relates to a base station for cleaning and / or emptying a Saugstaubraumes a vacuum cleaner, in particular a passive base station, with a base dust chamber, which is fluidically connected to the Saugerstaubraum of the vacuum cleaner that included in the Saugerstaubraum suction material by means of a blower in the base dust chamber is eligible.

Moreover, the invention also relates to a system of such a vacuum cleaner and a base station, which cooperate in the aforementioned manner.

Finally, the invention also relates to a method for indicating the filling level of a base dust chamber of a base station, which base station is designed for cleaning and / or emptying a suction dust chamber of a vacuum cleaner.

State of the art

Vacuum cleaners, base stations as well as such systems and methods for cleaning and / or emptying a suction dust space of the vacuum cleaner are known in the art. The vacuum cleaner may be a hand-held or self-propelled vacuum cleaner, such as a vacuum cleaner. This vacuum cleaner has a permanent filter. For emptying / cleaning of Saugerstaubraumes the vacuum cleaner is connected to the base station, with corresponding flow paths between the Saugerstaubraum the vacuum cleaner and a base dust chamber of the base station are made. The conveying of the suction material from the suction dust chamber in the base dust chamber can be done either by a blower of the base station or by the blower of the vacuum itself.

Although these systems or vacuum cleaners and / or base stations have proven themselves in the prior art, a continuous development is desired, in particular with regard to a comfortable handling for a user.

Summary of the invention

The invention here has the object to provide a vacuum cleaner, a base station and a system of a vacuum cleaner and a base station, in which the user receives information about the level of the base dust chamber of the base station in a particularly comfortable manner. In particular, the inventive solution should also be applicable when using a passive base station, d. H. a base station which has no active electronics for indicating the level.

The invention initially proposes that the vacuum cleaner has a data processing device and a light source, wherein the light source is controllable in dependence on a measured value relating to a state outside the vacuum cleaner.

According to the invention, the vacuum cleaner thus has a light source for emitting a light signal, which light source is controllable by a state that is not attributable to the vacuum cleaner itself, but, for example, connectable to the vacuum cleaner base station. Depending on the external measured value, a light signal may or may not be emitted. In addition, the content of the light signal is variable. The connectable to the vacuum cleaner base station itself (or another device) can be made passive, d. h., This or this must have no light source itself. The state in whose dependence the light source is controlled is in the case of a base station, for example, a level of the base dust chamber. The light signal, which includes information about the level, is thus not emitted by a light source of the base station itself, but rather by the light source of the vacuum cleaner. This is particularly advantageous, since the vacuum cleaner in any case has corresponding electrical devices for operating the light source.

In particular, the vacuum cleaner can also be a measuring device for measuring the filling level of a base dust chamber of the base station, the data processing device for receiving the measured value and selecting a control signal representing this measured value from a data memory, and at least one light source having optical communication means for receiving the control signal from the data processing device and transmitting a light signal corresponding to the control signal to a display device of the base station.

The data processing device and the optical communication device generate and transmit at the arrangement of the vacuum cleaner to the Base station corresponding optical information about the level of the base dust chamber, which information can then be displayed on a passive display device of the base station. Since the vacuum cleaner for operating the fan anyway requires electrical equipment, they can simultaneously supply the data processing device and the optical communication device with power. The data processing device advantageously has a processor and a data memory and is communicatively connected to the measuring device for measuring the fill level of the base dust chamber. Since the measuring device is integrated into the vacuum cleaner, the base station does not require any electrical connections for this, so that the base station can be passive, ie without active electronics. The measuring device transmits the information (the measured value) about the filling level of the base dust chamber to the data processing device, which then compares the measured value with reference values stored in the data memory. Each reference value is assigned exactly one control signal, which represents the measured value. This control signal contains control commands for the optical communication device, which cause them to generate a light signal corresponding to the measured value and to transmit it to the display device of the base station. For visualization of the level there are alternative possibilities. For example, it may be stored in the data memory of the data processing device that different numbers of levels are assigned different numerical values, colors or the like. If, for example, it is stored in the data memory that a fill level of 75 percent is coded "yellow", the data processing device controls the optical communication device of the vacuum cleaner so that it emits a yellow light signal. For a differentiated color coding of the possible filling levels of the base dust chamber, the optical communication device can have, for example, light sources with different wavelengths of the emitted light. Alternatively, the optical communication device may include a plurality of light sources associated with color filters for different wavelengths. In the aforementioned case that a level of 75 percent should be displayed in the color "yellow", the data processing device controls the light sources of the optical communication device such that a light source provided for emitting yellow light is turned on while all the others Light sources remain switched off. The yellow light signal emitted in this way then only has to be forwarded to the display device of the base station and displayed on it, for which purpose no electrically operated components are necessary. In this respect, a vacuum cleaner is provided with the invention, which meets all requirements to cooperate with a passive base station in the way that the level of the base dust chamber can be displayed on the passive base station.

Furthermore, it is proposed that the light source is arranged on a housing of the vacuum cleaner, that their light exit points out of the housing, so that sets in a coupled to a base station state of the vacuum cleaner between the housing and the base station, a free light beam. For example, the light emission of a light emitting diode or laser diode can be passed through a corresponding opening of the housing. Alternatively, the emitted light can also pass through a transparent window of the housing to the outside. For the purposes of the invention, the light source may also be a diode connected to a light waveguide, such as an optical fiber, pointing out the free end of the light exit from the housing of the vacuum cleaner and also emits a free light beam.

In addition, it is proposed that the light exit of the light source is arranged on the housing such that the light exit in the circumferential direction is sealed off by diaphragms, in particular partial areas of the housing, so that light emitted by the light source can be perceived substantially only parallel to a surface normal of the light exit is. As a result, the light exit of the light source for a user of the vacuum cleaner is arranged concealed on the vacuum cleaner, so that unintentional blinding of the user is avoided. In addition, it is achieved that the light is projected onto a corresponding display device of the base station, that is not recognizable that this is emitted by a device of the vacuum cleaner. Thus, the user uniquely assigns the light signal (and thus also the information contained therein) to the base station. The light exit of the light source on the housing of the vacuum cleaner can be flanked, for example, by projecting panels which obstruct a lateral view parallel to the plane of the light exit. Alternatively, the light exit can be sunk into a recess of the housing of the vacuum cleaner, so that the adjacent areas of the housing of the vacuum cleaner obstruct the lateral view of the user to the light exit.

It is provided that the optical communication device has a plurality of mutually adjacent light sources, which are controllable by the data processing device so that the emitted light differs in color, shape and / or size. The light sources can each emit light of different wavelengths or a color filter associated with the light exit have, so that depending on the level of light of a certain color can be transmitted to the base station. Furthermore, alternatively or additionally, a plurality of light sources can be arranged within a one-dimensional or two-dimensional array, wherein the number or arrangement of the currently light-emitting light sources contains information about the current fill level of the base dust chamber. If the level is, for example, 50 percent of the maximum volume of the base dust chamber, 50 percent of the light sources can emit light, at a level of 75 percent, corresponding to 75 percent of the light sources, etc. In this sense, the shape and / or size of the total to distinguish the base station transmitted light signal depending on the level. Furthermore, the emitted light of one or more light sources can also change temporally and / or locally so that, for example, a readable text is displayed on a corresponding display unit of the base station, which contains information about the current fill level of the base dust chamber. In this case, the light output of the light source may be associated, for example, a partially masking template, which allows a corresponding lettering.

It is further proposed that the measuring device of the vacuum cleaner has a differential pressure sensor or a tachometer. This measuring device is arranged in the vacuum cleaner and therefore does not have to be present in the base station. This allows the base station to continue to be passive, i. H. without active electronic components such as such a measuring device. The measuring device measures the level of the base station from its position inside the vacuum cleaner. For example, a differential pressure sensor may be disposed within the flow channels connecting the vacuum cleaner to the base dust chamber of the base station. Furthermore, the fan of the vacuum cleaner may be associated with a tachometer, wherein the speed of the blower (for example, when using the blower for cleaning the vacuum cleaner room at the base station) on the flow resistance and thus the level of the base dust chamber is dependent. Due to the communication connection between the measuring device and the data processing device, the measuring device can transmit the measured value directly to the data processing device. There is no external data interface between the vacuum cleaner and the base station required.

In addition to the above-described vacuum cleaner according to the invention, the invention also proposes a base station for cleaning and / or emptying a suction dust chamber of such a vacuum cleaner, in particular a passive base station, which has a base dust chamber, which is fluidically connectable to the suction dust space of the vacuum cleaner that in the Suction material contained suction dust by means of a blower in the base dust chamber is conveyed, wherein the base station has an optical display device, and an optical communication interface for connecting an optical communication device of the vacuum cleaner with the optical display device, wherein the display device is connected by means of a light guide to the optical communication interface. By way of example, the optical waveguide can be an optical fiber which forwards the light signal received via the optical communication interface to the location of the display device. The base station thus has according to the invention only passive components for receiving and displaying the level information. In particular, the optical communication interface of the base station can have an optical coupling device for a light guide, which couples the light signal into the light guide and forwards it to the display device. The display device is, for example, a free end region of the light guide, a diffusion optic arranged on the end region of the light guide or the like. Both the optical communication interface and the display device are thus exclusively passive optical components that do not require electronics. Thus, it is not necessary that the base station according to the invention, in addition to optionally a power supply for charging a battery of the vacuum cleaner, having electronics. In principle, it is also possible that the optical communication interface is associated with a plurality of optical fibers, which can transmit a multi-digit code in total to the display device.

Through the use of optical fibers, it is possible to separate the location of the optical communication interface from the location of the display device, so that there is greater freedom for the design of the base station. In particular, it can also be prevented that the display device is covered by the vacuum cleaner connected to the base station. Alternatively, it is also possible not to use a light guide, but to connect the optical communication interface directly to the optical display device or even to arrange both components on a common circuit board.

Alternatively, a base station for cleaning and / or emptying a Saugstaubraumes a vacuum cleaner is proposed, in particular a passive base station, with a base dust chamber, which is fluidically connected to the Saugstaubraum of the vacuum cleaner that included in the Saugerstaubraum suction material by means of a blower in the base dust chamber conveyed is, wherein a portion of a housing surface of the base station is adapted to reflect visible light with a reflectance of at least 90 percent. This reflectance relates in particular to wavelengths of about 380 nm to 780 nm. The housing of the base station thus has a housing part region whose surface reflects visible light with a high degree of reflection. A reflectance of at least 90 percent up to approximately 100 percent of the light signal striking the housing surface is advantageous. According to this embodiment variant, the base station is designed such that the housing part region cooperates with a light free jet emitted by the light source of the vacuum cleaner. In this combination, the light free jet of the optical communication device of the vacuum cleaner hits from the outside on a projection surface of the base station, which provides a particularly high degree of reflection for better readability for the user.

Furthermore, with the invention, a system of a vacuum cleaner, in particular a previously presented vacuum cleaner, and a base station, in particular a previously presented base station proposed, wherein the vacuum cleaner has a Saugerstaubraum and a blower for conveying suction material in the Saugerstaubraum, and wherein the base station has a base dust chamber, which can be fluidly connected to the suction dust space of the vacuum cleaner, that suction material contained in the suction dust space can be conveyed into the base dust chamber by means of a blower, wherein the vacuum cleaner is a measuring device for measuring the filling level of the base dust chamber, a data processing device for receiving the measured value and selecting a control signal representing this measured value from a data memory, and an optical communication device having at least one light source for receiving the control signal from the data processing device g and transmitting a control signal corresponding to the light signal via a communication interface of the base station to a display device of the base station.

In this sense, the passively trained base station cooperates with the vacuum cleaner connected to it so that the filling level of the base dust chamber of the base station can be displayed on a display device of the base station. It is not necessary that the base station has active electrical components. Rather, the electrical components of the vacuum cleaner are used to generate a fill level corresponding light signal and forward it to the display device.

Furthermore, it is proposed that the optical communication device of the vacuum cleaner and the optical communication interface of the base station are arranged with respect to an arrangement of the vacuum cleaner for a cleaning process of the suction dust space by means of the base station in corresponding contact areas of the vacuum cleaner and the base station. If the user connects the vacuum cleaner to the base station as usual in order to empty the suction dust space into the base dust chamber, a connection is automatically established between the optical communication device of the vacuum cleaner and the optical communication interface of the base station, so that the user does not have to additionally pay attention to a corresponding connection exists for the transmission of the fill level information. In particular, the housing of the vacuum cleaner and / or the housing of the base station can be designed so that the lowest possible degrees of freedom for the arrangement of the vacuum cleaner to the base station exist.

Furthermore, provision may be made for the vacuum cleaner and / or the base station to have a contact sensor which is assigned to a corresponding contact area between the vacuum cleaner and the base station with respect to a conventional cleaning and / or emptying arrangement of the vacuum cleaner at the base station, the contact sensor being formed is to control the optical communication device of the vacuum cleaner so that it only emits a light signal when the contact sensor detects contact between the vacuum cleaner and the base station. Thus, the light source is turned on depending on a detected presence of the vacuum cleaner at the base station, while the light source remains inactive in a normal suction operation of the vacuum cleaner. When the vacuum cleaner is connected to the base station, the contact sensor arranged therebetween, in particular a contact switch, is actuated, so that a presence can be detected. Alternatively, it is also possible that the contact sensor receives information about a started charging of a battery of the vacuum cleaner to the base station and thus closes on the presence of the vacuum cleaner at the base station. Due to the presence-dependent activity of the light source, it is impossible for the user of the vacuum cleaner to be blinded by a light signal emitted by the light source, since the light source is only switched on when the vacuum cleaner is currently also located at the base station. In combination with the previously described embodiment of diaphragms in the region of the light exit of the light source, it is additionally prevented that the light signal is directed laterally, ie. H. parallel to the plane of the light exit, can get into the eye of the user.

Finally, the invention also proposes a method for indicating the filling level of a base dust chamber of a base station, which base station is designed for cleaning and / or emptying a suction dust chamber of a vacuum cleaner, wherein a level of the base dust chamber measured by a measuring device of the vacuum cleaner and to a data processing device of the vacuum cleaner wherein the data processing device selects a control signal representing the measured value from a data memory and transmitted to an optical communication device of the vacuum cleaner, the optical communication device then generates a light signal corresponding to the control signal by means of at least one light source and transmitted to a display device of the base station, and wherein the the level representing light signal is displayed on the display device. The resulting advantages arise analogously to the advantages of the vacuum cleaner according to the invention, the base station and the system of vacuum cleaner and base station, as explained above.

Brief description of the drawings

In the following the invention will be explained in more detail by means of exemplary embodiments. Show it:

1 a system according to the invention comprising a vacuum cleaner and a base station according to a first embodiment variant,

2 : an enlarged detail 1 .

3 a system of a vacuum cleaner and a base station according to a second embodiment variant,

4 : an enlarged detail 3 ,

Description of the embodiments

The 1 and 3 each show a system of a vacuum cleaner 1 and a base station 11 , The vacuum cleaner 1 is designed as a hand-held vacuum cleaner, which is a suction nozzle 9 for moving over a surface to be cleaned, a suction dust space 2 as well as a blower 3 having. By means of the blower 3 becomes the suction nozzle 9 subjected to negative pressure, so that lying on the surface to be cleaned suction material in the Saugerstaubraum 2 can be promoted.

The vacuum cleaner 1 also has a data processing device 5 and an optical communication device 4 , The optical communication device 4 has a plurality of light sources 6 each with a light emission 8th for the emission of light. The light sources 6 form here an array of juxtaposed diodes. The diodes may be conventional LEDs, for example. The data processing device 5 is in communication with a measuring device, not shown, of the vacuum cleaner 1 for measuring the level within a base dust chamber 12 the base station 11 , The optical communication device 4 is here directly to the data processing device 5 connected, for example, arranged on a common circuit board. The light leaks 8th the light sources 6 show from the case 7 of the vacuum cleaner 1 out so that the emitted light signals the vacuum cleaner 1 as a light free jet 10 being able to leave.

The base station 11 is as a passive base station 11 trained and has the base dust chamber 12 to take over suction material from the suction dust space 2 of the vacuum cleaner 1 on. To do this exist between the Saugerstaubraum 2 and the basic dust chamber 12 Flow channels (not shown here), through which suction air or suction material from the Saugerstaubraum 2 of the vacuum cleaner 1 into the base dust chamber 12 the base station 11 can be promoted. The evacuation of the suction dust chamber 2 can either by a blower 3 the base station 11 take place, or alternatively - in the sense of a passive base station 11 - by the blower 3 of the vacuum cleaner 1 even.

According to 1 assigns the base station 11 at one of the optical communication device 4 of the vacuum cleaner 1 opposite surface portion of a display device 14 to display the light signals. The display device 14 Corresponds here with those of the light source 6 emitted light-free rays 10 in that this on the projection surface of the display device 14 be projected. It is provided that the optical communication direction 4 only a light signal emitted when the vacuum cleaner 1 actually at the base station 11 is arranged. To the presence of the vacuum cleaner 1 at the base station 11 Being able to determine is in a contact area between the vacuum cleaner 1 and the base station 11 a contact sensor 16 arranged, which by arranging the vacuum cleaner 1 at the base station 11 is pressed. Only then does the data processing device control 5 the optical communication device 4 of the vacuum cleaner 1 such that the light sources 6 a the level of the base dust chamber 12 emit appropriate light signal.

The data processing device 5 of the vacuum cleaner 1 evaluates a measurement result received from the measuring device on the level of the base dust chamber 12 by this with in a data memory of the data processing device 5 stored reference values. If the measured value, for example, a level of 25 percent of the maximum capacity of the base dust chamber 12 corresponds, determines the data processing device 5 the corresponding to this level light signal. Here, for example, a green light signal can indicate a level of 25 percent. Analogous to a "traffic light system", the colors "green, yellow, red" can indicate different fill levels, namely a little filled base dust chamber 12 (green), a roughly half-filled base dust chamber 12 (yellow) and a nearly completely filled base dust chamber 12 (red). The display is possible in different levels, for example green = 0 percent to 33 percent, yellow = 34 percent to 66 percent, red = 67 percent to 100 percent. In the present case, the green light signal controls the data processing device 5 the optical communication device 4 such that a green light emitting light source 6 is turned on while all other light sources 6 , which emit light of different wavelength, remain off. In this respect, the user receives by the on the display device 14 the base station 11 projected green light signal information about the level of the base dust chamber 12 ,

The embodiment according to 3 has an optical communication device 4 which also consists of a plurality of juxtaposed light sources 6 consists. The of the light sources 6 emitted light signals are by suitable beam guiding means on a common light emission 8th the optical communication device 4 guided. This light emission is so on the housing 7 of the vacuum cleaner 1 arranged that the light exit 8th facing outward. The corresponding base station 11 points exactly in the area in which the light exit 8th the optical communication device 4 is arranged when the vacuum cleaner 1 at the base station 11 located, an optical communication interface 13 on, which from the light exit 8th the optical communication device 4 of the vacuum cleaner 1 can receive exiting light signal. The optical communication interface 13 Advantageously, a lens for coupling the light signal in a light guide 15 , here an optical fiber, on. The light signal is then transmitted from the optical communication interface 13 to the free end region of the optical waveguide 15 passed, which at the same time the display device 14 the base station 11 forms. In this respect, the positions of the optical communication interface differ according to this second embodiment variant 13 and the display device 14 at the base station 11 , The light source 6 of the vacuum cleaner 1 is also according to this embodiment advantageously concealed on the housing 7 of the vacuum cleaner 1 arranged so that one next to the vacuum cleaner 1 or the base station 11 standing user no light signal at the light exit 8th the optical communication device 4 perceives, but rather only the light signal of the display device 14 the base station 11 see what information about the level of the base dust chamber 12 gives.

LIST OF REFERENCE NUMBERS

1

vacuum cleaner

2

Vacuum cleaner dust chamber

3

fan

4

optical communication device

5

Data processing device

6

light source

7

casing

8th

light output

9

suction nozzle

10

Light-free jet

11

base station

12

Based dust chamber

13

optical communication interface

14

display

15

optical fiber

16

Contact sensor

Claims (10)

Vacuum cleaner ( 1 ), in particular hand-guided or automatically movable battery sucker, with a suction dust chamber ( 2 ) and a blower ( 3 ), wherein the suction dust space ( 2 ) during a suction operation of the vacuum cleaner ( 1 ) for conveying suction material into the suction dust space ( 2 ) fluidically with the blower ( 3 ), characterized in that the vacuum cleaner ( 1 ) a data processing device ( 5 ) and a light source ( 6 ), wherein the light source ( 6 ) depending on a condition outside of the vacuum cleaner ( 1 ) is controllable. Vacuum cleaner ( 1 ) according to claim 1, characterized in that the light source ( 6 ) on a housing ( 7 ) of the vacuum cleaner ( 1 ) is arranged so that the light emission ( 8th ) out of the housing ( 7 ), so that in one to a base station ( 11 ) coupled state of the vacuum cleaner ( 1 ) between the housing ( 7 ) and the base station ( 11 ) a light free jet ( 10 ). Vacuum cleaner ( 1 ) according to claim 1 or 2, characterized in that the light exit ( 8th ) of the light source ( 6 ) so on the housing ( 7 ) is arranged so that the light exit ( 8th ) in the circumferential direction by diaphragms, in particular subregions of the housing ( 7 ), so that from the light source ( 6 ) emitted light substantially only parallel to a surface normal of the light exit ( 8th ) is perceptible. Vacuum cleaner ( 1 ) according to one of the preceding claims, characterized in that the optical communication device ( 4 ) a plurality of mutually adjacent light sources ( 6 ), which of the data processing device ( 5 ) are controllable so that the emitted light differs in color, shape and / or size. Base station ( 11 ) for cleaning and / or emptying a suction dust space ( 2 ) of a vacuum cleaner ( 1 ), in particular passive base station ( 11 ), with a base dust chamber ( 12 ), which fluidically so with the Saugerstaubraum ( 2 ) of the vacuum cleaner ( 1 ) is connectable, that in the suction dust space ( 2 ) contained by means of a blower in the base dust chamber ( 12 ), characterized in that the base station ( 11 ) an optical display device ( 14 ), and an optical communication interface ( 13 ) for connecting an optical communication device ( 4 ) of the vacuum cleaner ( 1 ) with the optical display device ( 14 ), wherein the optical display device ( 14 ) by means of a light guide ( 15 ) with the optical communication interface ( 13 ) connected is. Base station ( 11 ) for cleaning and / or emptying a suction dust space ( 2 ) of a vacuum cleaner ( 1 ), in particular passive base station ( 11 ), with a base dust chamber ( 12 ), which fluidically so with the Saugerstaubraum ( 2 ) of the vacuum cleaner ( 1 ) is connectable, that in the suction dust space ( 2 ) contained by means of a blower in the base dust chamber ( 12 ) is conveyable, characterized in that a partial region of a housing surface of the base station ( 11 ) is adapted to reflect visible light with a reflectance of at least 90%. System from a vacuum cleaner ( 1 ), in particular a vacuum cleaner ( 1 ) according to one of claims 1 to 4, and a base station ( 11 ), in particular a base station ( 11 ) according to one of claims 5 or 6, wherein the vacuum cleaner ( 1 ) a suction dust space ( 2 ) and a blower ( 3 ) for conveying suction material into the suction dust space ( 2 ), and wherein the base station ( 11 ) a base dust chamber ( 12 ), which fluidically so with the Saugerstaubraum ( 2 ) of the vacuum cleaner ( 1 ) is connectable, that in the suction dust space ( 2 ) contained by means of a blower in the base dust chamber ( 12 ), characterized in that the vacuum cleaner ( 1 ) a measuring device for measuring the filling level of the base dust chamber ( 12 ), a data processing device ( 5 ) for receiving the measured value and selecting a control signal representing this measured value from a data memory, as well as an at least one light source ( 6 ) optical communication device ( 4 ) for receiving the control signal from the data processing device ( 5 ) and transmitting a light signal corresponding to the control signal via a communication interface ( 13 ) of the base station ( 14 ) to a display device ( 14 ) of the base station ( 11 ) having. System according to claim 7, characterized in that the optical communication device ( 4 ) of the vacuum cleaner ( 1 ) and the optical communication interface ( 13 ) of the base station ( 11 ) relative to an arrangement of the vacuum cleaner ( 1 ) for a cleaning process of the suction dust space ( 2 ) by means of the base station ( 11 ) in corresponding contact areas of the vacuum cleaner ( 1 ) and the base station ( 11 ) are arranged. System according to claim 7 or 8, characterized in that the vacuum cleaner ( 1 ) and / or the base station ( 11 ) a contact sensor ( 16 ), which relative to a conventional cleaning and / or emptying arrangement of the vacuum cleaner ( 1 ) at the base station ( 11 ) a corresponding contact area between the vacuum cleaner ( 1 ) and the base station ( 11 ), wherein the contact sensor ( 16 ), the optical communication device ( 4 ) of the vacuum cleaner ( 1 ) so that it only emits a light signal when the contact sensor ( 16 ) a contact between the vacuum cleaner ( 1 ) and the base station ( 11 ) detected. Method for indicating the level of a base dust chamber ( 12 ) of a base station ( 11 ), which base station ( 11 ) for cleaning and / or emptying a suction dust space ( 2 ) of a vacuum cleaner ( 1 ), characterized in that a filling level of the base dust chamber ( 12 ) by means of a measuring device of the vacuum cleaner ( 1 ) and to a data processing device ( 5 ) of the vacuum cleaner ( 1 ), the data processing device ( 5 ) selects a control signal representing the measured value from a data memory and to an optical communication device ( 4 ) of the vacuum cleaner ( 1 ), wherein the optical communication device ( 4 ) thereupon a light signal corresponding to the control signal by means of at least one light source ( 6 ) and to a display device ( 14 ) of the base station ( 11 ) and wherein the level signal representing the light signal on the display device ( 14 ) is shown.

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