EP4167821A2 - Verfahren zum erkennen eines fehlerzustands in einem reinigungsroboter - Google Patents
Verfahren zum erkennen eines fehlerzustands in einem reinigungsroboterInfo
- Publication number
- EP4167821A2 EP4167821A2 EP21732221.3A EP21732221A EP4167821A2 EP 4167821 A2 EP4167821 A2 EP 4167821A2 EP 21732221 A EP21732221 A EP 21732221A EP 4167821 A2 EP4167821 A2 EP 4167821A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- cleaning robot
- duration
- average filling
- filling
- average
- 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.)
- Granted
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
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/19—Means for monitoring filtering operation
-
- 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
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/4011—Regulation of the cleaning machine by electric means; Control systems and remote control systems therefor
-
- 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
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/4027—Filtering or separating contaminants or debris
- A47L11/403—Means for monitoring filtering operation
-
- 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
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
- A47L9/1409—Rigid filtering receptacles
-
- 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
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2805—Parameters or conditions being sensed
- A47L9/281—Parameters or conditions being sensed the amount or condition of incoming dirt or dust
-
- 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
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2889—Safety or protection devices or systems, e.g. for prevention of motor over-heating or for protection of the user
-
- 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
- A47L2201/00—Robotic cleaning machines, i.e. with automatic control of the travelling movement or the cleaning operation
- A47L2201/06—Control of the cleaning action for autonomous devices; Automatic detection of the surface condition before, during or after cleaning
Definitions
- the invention relates to a method for recognizing a fault condition in a cleaning robot and to a cleaning robot with a control / regulating device which is set up / programmed to carry out this method.
- Ordinary cleaning robots comprise an intake tract through which polluted air sucked in by means of the cleaning robot can flow.
- cleaning robots typically include a separator, often implemented as a filter, for separating dirt from the polluted air drawn in via the intake tract.
- conventional cleaning robots have an outlet tract for expelling air that has been cleaned by means of the separator.
- cleaning robots usually include a collection receptacle for collecting the separated dirt.
- a fill level of dirt in the collecting container is usually determined by monitoring an air pressure difference between the intake tract and the outlet tract of the cleaning robot. If this air pressure difference rises sharply, it is recognized that a maximum fill level of the collecting container has been reached. Typically, if the presence of the maximum fill level was detected, an error message is displayed to a user of the cleaning robot, but the cleaning robot continues cleaning without interruption.
- the basic idea of the invention is therefore to compare an average filling duration of the collecting container of the cleaning robot with dirt during operation of the cleaning robot with an individual filling duration of the collecting container in order to recognize in this way the presence of an error state of the cleaning robot if the individual filling Duration deviates too much from the average filling time.
- the cleaning process can be aborted if the error condition is detected.
- the cleaning robot continues to drive over the surface to be cleaned and, in the process, distributes, in particular wet, dirt over the remaining surface to be cleaned instead of this to get rid of the dirt and to clean it in this way.
- a defect in the cleaning robot which can arise as a result of the error state, can be prevented.
- the average filling time also depends on an average level of dirt on the surface to be cleaned, so that the cleaning robot learns how long it takes on average in its familiar environment until its collecting container is filled. The error state can thus also be reliably detected when the cleaning robot is operated in an environment that deviates from a standard environment.
- a method for recognizing a fault condition in a cleaning robot with a collecting container for collecting dirt provides that an average filling time of the collecting container with dirt is determined during the operation of the cleaning robot.
- the presence of an error state is recognized as soon as an individual filling duration deviates from the determined average filling duration by more than a predetermined difference value defining a threshold value.
- the value of the average filling time depends on a (surface-specific) average dirt level of the surface to be cleaned by the cleaning robot, so that the method can reliably detect the presence of the error state even if the surface to be cleaned is on average more dirty than average as can be the case in a workshop.
- the operating time of the cleaning robot in which it cleans is used as the individual filling time that has elapsed between emptying the collecting container and the subsequent detection of reaching a predetermined maximum filling level of the collecting container. So only the operating time of the cleaning robot in which it actually cleans is taken into account. In this way, the filling duration or the average filling duration can advantageously be determined particularly precisely.
- the error state is classified as having occurred as soon as an individual filling duration is more than the predetermined difference value below the determined average filling duration, so that the value falls below the threshold value. If the threshold value is undershot in this way, the presence of the error state is particularly likely, so that it is advantageously avoided that the error state is recognized without actually being present.
- the average filling time is calculated by forming the arithmetic mean from individual filling times. This allows a particularly simple determination of the filling time from previous individual filling times.
- the difference value is defined as an absolute deviation from the average filling time. This absolute deviation is expediently a defined time value depending on the cleaning performance of the cleaning robot. The absolute deviation is particularly preferably a value of 1 to 3 hours, most preferably 2 hours. Carrying out the method developed in this way impresses with its particularly low computational effort.
- the difference value is defined as a relative deviation from the average filling time.
- This relative deviation preferably corresponds to a multiple standard deviation, most preferably three times the standard deviation, of the individual filling times taken into account for the average filling time compared to the average filling time. This allows a particularly reliable detection of the presence of the error state.
- the cleaning robot can be operated in at least two different operating modes, which can be cleaning modes.
- the determination of the average filling time and the associated detection of the error state are carried out individually for each operating mode.
- the operating modes preferably differ with regard to a suction power of the cleaning robot.
- the presence of an error state can thus also be reliably recognized by means of the method in different operating modes that are tailored to different requirements placed on the cleaning robot.
- the cleaning robot can also determine the average filling time for operation with mixed operating modes.
- the respective average filling times are calculated from cleaning cycles, which were carried out completely in only one of the operating modes from the emptying of the collecting container to the detection of reaching a predetermined maximum filling level of the collecting container.
- the current equivalent individual filling duration and the equivalent average filling duration in the currently carried out cleaning cycle can be included based on the (e.g. time, distance or area) weighted share of the respective operating modes. In this way, the behavior of the robot set by the user is advantageously taken into account.
- the cleaning robot creates a digital map of an area to be cleaned, this digital map being stored in a digital map memory of the cleaning robot.
- a card can cover the area to be cleaned in one or more rooms. It is recognized if the cleaning robot cleans an area that has already been mapped.
- the determination of the average filling time and the associated detection of an error state are carried out individually for each digital map or each room. This advantageously has the consequence that, depending on which digital card or which room the cleaning robot has recognized, a different average filling duration is determined or used for the detection of the error state.
- an air pressure difference between an intake tract and an outlet tract of the cleaning robot is monitored. This offers a particularly easy-to-implement possibility of determining such an individual filling duration.
- a malfunction message is generated which is displayed to a user of the cleaning robot by means of an information device of the cleaning robot set up for this purpose and - alternatively or additionally - by means of a mobile terminal connected to the cleaning robot for data transmission or otherwise brought to our attention. This allows a particularly intuitive reaction by the user of the cleaning robot to the detected error condition.
- the invention further relates to a cleaning robot with a collecting container for collecting dirt and with a control / regulating device which is set up / programmed to carry out the method according to the invention presented above. Further important features and advantages of the invention emerge from the subclaims, from the drawing and from the associated description of the figures based on the drawing.
- FIG. 1 illustrates an example of a method V according to the invention for detecting a fault condition F in a cleaning robot according to the invention, which comprises a collecting container for collecting dirt and a control / regulating device which is set up / programmed to carry out method V.
- a method V for detecting a fault condition F in a cleaning robot according to the invention, which comprises a collecting container for collecting dirt and a control / regulating device which is set up / programmed to carry out method V.
- an average filling duration 1 of the collecting container with dirt is determined while the cleaning robot is in operation.
- the presence of an error state F is also recognized as soon as an individual filling duration 2 deviates by more than a predetermined difference value 6 from the determined average filling duration 1, that is, if an individual filling duration 2 has a predetermined and by means of the Difference value 6 falls below the predetermined threshold value 3.
- the operating time 4 of the cleaning robot in which it cleans is used as the individual filling duration 2, which has elapsed between emptying the collecting container and the subsequent detection of reaching a predetermined maximum filling level of the collecting container.
- the fault condition F is classified as having occurred as soon as an individual filling duration 2 is more than the predetermined difference value 6 below the determined average filling duration 1.
- the average filling time 1 is calculated by forming the arithmetic mean 5 from individual filling times 2.
- the average filling duration is calculated, for example, by forming the arithmetic mean 5 from n individual filling durations 2. In the example shown, the average filling duration is 1 by forming the arithmetic mean 5 four individual filling times 2 are calculated.
- the difference value 6 is defined as a deviation from the average filling duration 1.
- This deviation which defines the difference value 3 can be an absolute deviation from the average filling duration 1.
- the absolute deviation can be a defined time value of 1 to 3 hours, for example 2 hours.
- the deviation defining the difference value 6 can be a relative deviation from the average filling duration 1.
- This relative deviation can correspond to a multiple standard deviation, for example three times the standard deviation, of the individual filling durations 2 taken into account for the average filling duration 1 compared to the average filling duration 1.
- the determination of the average filling duration 1 or the formation of the arithmetic mean 5 can be reset after an error state F has been recognized.
- the cleaning robot can be operated in at least two different operating modes. Such operating modes are, for example, cleaning modes and differ with regard to a suction power of the cleaning robot.
- the determination of the average filling duration 1 and the associated detection of an error state F takes place individually for each operating mode. This means that, depending on the operating mode in which the cleaning robot is operated, another average filling duration 1 assigned to this operating mode is used as a reference value.
- the cleaning robot can also determine the average filling time 1 for operation with mixed operating modes.
- the respective average filling times 1 are calculated from cleaning cycles, which were carried out completely in only one of the operating modes from emptying the collecting container to recognizing that a predetermined maximum filling level of the collecting container had been reached.
- the current equivalent individual filling duration 2 and the equivalent average filling duration 1 in the currently carried out cleaning cycle can be formed with the weighted share of the respective operating modes (e.g. time, distance or area).
- the cleaning robot can also be set up to create a digital map of an area to be cleaned and to store this digital map in a digital map memory of the cleaning robot. It is recognized if the cleaning robot is cleaning an area that has already been mapped.
- the determination of the average filling duration 1 and the associated detection of an error state F then take place individually for each digital card. This means that in the event that the cleaning robot has recognized an area that has already been mapped, the average filling duration 1 assigned to this digital map is used for method V.
- an air pressure difference between an intake tract and an outlet tract of the cleaning robot is monitored during operation of the cleaning robot.
- a separating device for separating dirt from air sucked in and polluted via the intake tract, as well as the collecting container, can be arranged between the intake tract and the outlet tract of the cleaning robot.
- a fault message is generated.
- the error message is displayed to a user of the cleaning robot.
- the error message can be provided to the user of the cleaning robot by means of an information device of the cleaning robot set up for this purpose and - alternatively or additionally - by means of a mobile terminal connected to the cleaning robot for data transmission.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manipulator (AREA)
- Electric Vacuum Cleaner (AREA)
- Cleaning In General (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020207694.4A DE102020207694B4 (de) | 2020-06-22 | 2020-06-22 | Verfahren zum Erkennen eines Fehlerzustands in einem Reinigungsroboter |
| PCT/EP2021/065286 WO2021259629A2 (de) | 2020-06-22 | 2021-06-08 | Verfahren zum erkennen eines fehlerzustands in einem reinigungsroboter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4167821A2 true EP4167821A2 (de) | 2023-04-26 |
| EP4167821B1 EP4167821B1 (de) | 2026-02-18 |
Family
ID=76444384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21732221.3A Active EP4167821B1 (de) | 2020-06-22 | 2021-06-08 | Verfahren zum erkennen eines fehlerzustands in einem reinigungsroboter |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20230240496A1 (de) |
| EP (1) | EP4167821B1 (de) |
| CN (1) | CN115666352B (de) |
| DE (1) | DE102020207694B4 (de) |
| WO (1) | WO2021259629A2 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022200465A1 (de) | 2022-01-17 | 2023-07-20 | BSH Hausgeräte GmbH | Verfahren zum Betrieb eines mobilen, selbstfahrenden Geräts |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4323222C2 (de) * | 1993-07-12 | 2002-05-02 | Miele & Cie | Verfahren und Einrichtung zur Füllgradanzeige des Staubfilterbeutels in einem Staubsauger |
| JP2005211493A (ja) * | 2004-01-30 | 2005-08-11 | Funai Electric Co Ltd | 自走式掃除機 |
| DE102007036157B4 (de) * | 2007-08-02 | 2011-11-24 | BSH Bosch und Siemens Hausgeräte GmbH | Verfahren und Vorrichtung zum Ermitteln des Füllgrades eines Staubsammelbehälters eines Staubsammelgerätes, insbesondere eines Staubsammelroboters, sowie Staubsammelgerät mit einer solchen Vorrichtung |
| CN101926625A (zh) * | 2009-06-22 | 2010-12-29 | 乐金电子(天津)电器有限公司 | 一种吸尘器尘满指示器 |
| DE102009035717A1 (de) | 2009-07-31 | 2011-02-10 | Miele & Cie. Kg | Verfahren zur Anzeige eines Füllgrads eines Staubbeutels und Steuerungsvorrichtung zur Ausführung des Verfahrens |
| EP2494900B1 (de) * | 2011-03-04 | 2014-04-09 | Samsung Electronics Co., Ltd. | Fremdkörpererkennungseinheit und Roboterreinigungsvorrichtung damit |
| DE102011006539B4 (de) | 2011-03-31 | 2019-11-14 | BSH Hausgeräte GmbH | Staubsauger und Verfahren zum betriebsdauerabhängigen Betreiben eines Staubsaugers |
| CN105796010A (zh) * | 2016-05-23 | 2016-07-27 | 江苏美的清洁电器股份有限公司 | 尘满提示方法、尘满提示装置及吸尘器 |
| DE102017113285A1 (de) * | 2017-06-16 | 2018-12-20 | Vorwerk & Co. Interholding Gmbh | System mit mindestens zwei Reinigungsgeräten |
| CN109480701B (zh) | 2017-09-13 | 2020-08-28 | 杭州萤石网络有限公司 | 吸尘设备、吸尘设备风道异常处理方法及装置 |
| CN107854054A (zh) * | 2017-11-03 | 2018-03-30 | 北京奇虎科技有限公司 | 扫地机器人的尘盒、扫地机器人及控制方法 |
| CN109316132A (zh) * | 2018-10-31 | 2019-02-12 | 深圳乐动机器人有限公司 | 扫地机器人的报警方法、装置、存储介质及扫地机器人 |
| CN111150332B (zh) * | 2019-12-31 | 2024-01-16 | 上海飞科电器股份有限公司 | 自主清洁设备及其尘盒监测方法 |
-
2020
- 2020-06-22 DE DE102020207694.4A patent/DE102020207694B4/de active Active
-
2021
- 2021-06-08 EP EP21732221.3A patent/EP4167821B1/de active Active
- 2021-06-08 CN CN202180044207.7A patent/CN115666352B/zh active Active
- 2021-06-08 WO PCT/EP2021/065286 patent/WO2021259629A2/de not_active Ceased
- 2021-06-08 US US18/011,870 patent/US20230240496A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE102020207694B4 (de) | 2023-11-02 |
| WO2021259629A2 (de) | 2021-12-30 |
| WO2021259629A3 (de) | 2022-02-17 |
| CN115666352B (zh) | 2026-05-12 |
| CN115666352A (zh) | 2023-01-31 |
| EP4167821B1 (de) | 2026-02-18 |
| DE102020207694A1 (de) | 2021-12-23 |
| US20230240496A1 (en) | 2023-08-03 |
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