WO2018216690A1 - 電気掃除機 - Google Patents
電気掃除機 Download PDFInfo
- Publication number
- WO2018216690A1 WO2018216690A1 PCT/JP2018/019659 JP2018019659W WO2018216690A1 WO 2018216690 A1 WO2018216690 A1 WO 2018216690A1 JP 2018019659 W JP2018019659 W JP 2018019659W WO 2018216690 A1 WO2018216690 A1 WO 2018216690A1
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- WIPO (PCT)
- Prior art keywords
- vacuum cleaner
- unit
- travel
- cleaning
- cleaned
- Prior art date
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- 238000004140 cleaning Methods 0.000 claims abstract description 108
- 238000009408 flooring Methods 0.000 claims description 22
- 239000000428 dust Substances 0.000 claims description 21
- 238000001514 detection method Methods 0.000 claims description 15
- 238000013507 mapping Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 description 27
- 238000004891 communication Methods 0.000 description 25
- 238000003384 imaging method Methods 0.000 description 14
- 230000006870 function Effects 0.000 description 13
- 230000008569 process Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000013500 data storage Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000003702 image correction Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/02—Control of position or course in two dimensions
- G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
- G05D1/0231—Control of position or course in two dimensions specially adapted to land vehicles using optical position detecting means
- G05D1/0246—Control of position or course in two dimensions specially adapted to land vehicles using optical position detecting means using a video camera in combination with image processing means
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/02—Control of position or course in two dimensions
- G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
- G05D1/0268—Control of position or course in two dimensions specially adapted to land vehicles using internal positioning means
- G05D1/0274—Control of position or course in two dimensions specially adapted to land vehicles using internal positioning means using mapping information stored in a memory device
-
- 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
-
- 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
- A47L11/4061—Steering means; Means for avoiding obstacles; Details related to the place where the driver is accommodated
-
- 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
- A47L9/02—Nozzles
- A47L9/04—Nozzles with driven brushes or agitators
-
- 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
-
- 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
-
- 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
- A47L9/2836—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means characterised by the parts which are controlled
- A47L9/2852—Elements for displacement of the vacuum cleaner or the accessories therefor, e.g. wheels, casters or nozzles
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/02—Control of position or course in two dimensions
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/02—Control of position or course in two dimensions
- G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
- G05D1/0231—Control of position or course in two dimensions specially adapted to land vehicles using optical position detecting means
- G05D1/0246—Control of position or course in two dimensions specially adapted to land vehicles using optical position detecting means using a video camera in combination with image processing means
- G05D1/0251—Control of position or course in two dimensions specially adapted to land vehicles using optical position detecting means using a video camera in combination with image processing means extracting 3D information from a plurality of images taken from different locations, e.g. stereo vision
-
- 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
- A47L2201/04—Automatic control of the travelling movement; Automatic obstacle detection
Definitions
- Embodiment of this invention is related with the vacuum cleaner which can drive
- a so-called autonomous traveling type vacuum cleaner that performs cleaning while traveling autonomously on a surface to be cleaned.
- a vacuum cleaner not only detects obstacles, but also, for example, is equipped with a camera, creates the size and shape of the cleaning area as a map, and uses it together with the technology to estimate self-location efficiently and autonomously There is something to run.
- a switch that selects the type of floor surface, and when the tatami mode is selected, the direction of the eyes is detected from how to lay the tatami and the vehicle autonomously travels based on the traveling direction, or a sophisticated and complex image There are things that detect the layout of tatami using analysis and set the travel route.
- the floor types are not only tatami mats, but also flooring and carpets, etc. Since the preferred travel route is different for each, the floor type is automatically and easily discriminated, and according to these types It is desirable to set the travel route appropriately.
- the problem to be solved by the present invention is to provide a vacuum cleaner that can be efficiently cleaned according to the type of surface to be cleaned.
- the vacuum cleaner of the embodiment includes a main body, a travel drive unit, a cleaning unit, a self-position estimation unit, a mapping unit, a determination unit, a setting unit, and a travel control unit.
- the travel drive unit can travel the main body.
- the cleaning unit performs cleaning.
- the self position estimating means estimates the self position.
- the mapping means creates a map of the cleaning area based on the self-position estimation by the self-position estimation means.
- the determination means determines the type of the surface to be cleaned.
- the setting means sets the travel route based on the map created by the mapping means and the type of the surface to be cleaned determined by the determining means.
- the travel control means autonomously travels the main body along the travel route set by the setting means by controlling the drive of the travel drive unit.
- (a) is an explanatory diagram schematically illustrating an example of an image captured by one camera
- (b) is an explanatory diagram schematically illustrating an example of an image captured by the other camera
- (c) is (a) and It is explanatory drawing which shows an example of the parallax image based on the image of (b).
- FIG. (a) is explanatory drawing which shows an example of arrangement
- FIG. (b) is explanatory drawing which shows the other example of arrangement
- (a) is an explanatory diagram showing an example of the arrangement of tatami mats in the cleaning area between four tatami mats
- (b) is an explanatory diagram showing an example of the arrangement of tatami mats between six tatami mats
- (c) is a tatami mat between eight tatami mats.
- (a) is an explanatory view showing a travel route corresponding to FIG. 9 (a)
- (b) is an explanatory view showing a travel route corresponding to FIG. 9 (b), and (c) is equivalent to FIG. 9 (c). It is explanatory drawing which shows a driving
- reference numeral 11 denotes a vacuum cleaner as an autonomous vehicle.
- the vacuum cleaner 11 is a so-called self-propelled robot cleaner (cleaning device) that cleans the floor surface while autonomously traveling (self-propelled) on the floor surface to be cleaned as a traveling surface. Robot).
- the vacuum cleaner 11 is, for example, a charging device (charging stand) (not shown) as a base device that serves as a base for charging the vacuum cleaner 11, and an electric cleaning device (electric cleaning system) as an autonomous traveling body device. Can also be configured.
- the vacuum cleaner 11 includes a main body case 20 that is a hollow main body.
- the vacuum cleaner 11 also includes drive wheels 21 that are travel drive units.
- the electric vacuum cleaner 11 includes a cleaning unit 22 that cleans dust.
- the vacuum cleaner 11 includes a sensor unit 23.
- the electric vacuum cleaner 11 includes an imaging unit 24.
- the vacuum cleaner 11 also includes a communication unit 25.
- the electric vacuum cleaner 11 includes a control unit 26 as a control means that is a controller.
- the electric vacuum cleaner 11 may include a display unit as display means for displaying an image. And this vacuum cleaner 11 may be equipped with the secondary battery which is a battery for electric power feeding.
- the vacuum cleaner 11 may include a communication unit that is a data communication unit serving as an information transmission unit that communicates via a network by wire or wireless, for example.
- the electric vacuum cleaner 11 may include an input / output unit for inputting / outputting signals to / from an external device or a user.
- the direction along the traveling direction of the vacuum cleaner 11 (main body case 20) is defined as the front-rear direction (arrow FR, RR direction shown in FIG. 2), and the left-right direction intersecting (orthogonal) with the front-rear direction ( The description will be made assuming that the width direction is the width direction.
- the main body case 20 is made of, for example, a synthetic resin.
- the main body case 20 may be formed in, for example, a flat cylindrical shape (disc shape). Further, the main body case 20 may be provided with a suction port 31 that is a dust collection port or the like in a lower part facing the floor surface.
- the driving wheel 21 is used for traveling (autonomous traveling) the vacuum cleaner 11 (main body case 20) in the forward and backward directions on the floor surface, that is, for traveling.
- a pair of drive wheels 21 are provided on the left and right of the main body case 20, for example.
- the drive wheel 21 is driven by a motor 33 as drive means.
- an endless track as a travel drive unit can be used.
- the motor 33 is arranged corresponding to the drive wheel 21. Therefore, in the present embodiment, a pair of left and right motors 33 are provided, for example.
- the motor 33 can drive each drive wheel 21 independently.
- the cleaning unit 22 is for removing dust from a cleaned part such as a floor surface or a wall surface.
- the cleaning unit 22 has a function of collecting and collecting dust on the floor surface from the suction port 31, for example, and wiping and cleaning the wall surface.
- the cleaning unit 22 includes an electric blower 35 that sucks dust together with air from the suction port 31, a rotary brush 36 that is rotatably attached to the suction port 31 and scrapes up dust, and the rotary brush 36 is driven to rotate.
- the cleaning unit 22 may include a dust collection unit 40 that communicates with the suction port 31 and collects dust.
- the sensor unit 23 senses various types of information that support the running of the vacuum cleaner 11 (main body case 20). More specifically, the sensor unit 23 senses, for example, the uneven state (steps) of the floor surface, walls or obstacles that obstruct travel, the amount of dust on the floor surface, and the like. As the sensor unit 23, for example, an infrared sensor or an ultrasonic sensor is used.
- the imaging unit 24 includes a camera 51 as imaging means (imaging unit body).
- the imaging unit 24 may include a lamp 53 as a detection assisting unit (detection assisting unit).
- the camera 51 has a digital image at a predetermined horizontal angle of view (for example, 105 °) at a predetermined time, for example, every several tens of milliseconds, in front of the vacuum cleaner 11 (main body case 20). It is a digital camera that captures images every minute time or every few seconds. In other words, the camera 51 captures an image of a region over the floor surface or wall surface in front of the vacuum cleaner 11 (main body case 20).
- the camera 51 may be singular or plural.
- a pair of left and right cameras 51 are provided. That is, the camera 51 is disposed on the front portion of the main body case 20 so as to be separated from the left and right.
- the cameras 51 and 51 have overlapping imaging ranges (fields of view).
- the images captured by these cameras 51 and 51 have their imaging regions wrapped in the left-right direction.
- the image captured by the camera 51 may be, for example, a color image or a monochrome image in the visible light region, or an infrared image.
- the lamp 53 illuminates the imaging range of the camera 51 to obtain brightness necessary for imaging.
- the lamp 53 is disposed at an intermediate position between the cameras 51 and 51 and is provided corresponding to each camera 51.
- this lamp 53 for example, an LED or the like is used.
- the communication unit 25 is, for example, wired communication with a home gateway (router) as a relay means (relay unit) arranged in a cleaning area or the like, or wireless such as Wi-Fi (registered trademark) or Bluetooth (registered trademark). Communication (transmission / reception) using communication enables wired or wireless communication with general-purpose servers as data storage means (data storage unit), external devices, etc. via (external) networks such as the Internet. Yes.
- a wireless LAN device is preferably used as the communication unit 25 for example.
- an access point function may be installed in the communication unit 25 so as to perform wireless communication directly with an external device without going through a home gateway.
- a web server function may be added to the communication unit 25.
- control unit 26 for example, a microcomputer including a CPU, a ROM, a RAM, and the like as a control means main body (control unit main body) is used.
- the control unit 26 includes a travel control unit 61 that is a travel control unit that drives the drive wheels 21 (motor 33).
- control unit 26 includes a cleaning control unit 62 that is a cleaning control unit electrically connected to the cleaning unit 22.
- the control unit 26 includes a sensor connection unit 63 that is a sensor control unit electrically connected to the sensor unit 23.
- the control unit 26 includes a determination unit 64 that is a determination unit that is electrically connected to the imaging unit 24.
- the control unit 26 includes a map creating unit 65 that is a mapping means (mapping unit).
- control unit 26 is electrically connected to the cleaning unit 22, the sensor unit 23, the imaging unit 24, the communication unit 25, and the like. Further, the control unit 26 includes a route setting unit 66 as setting means for setting the travel route of the electric vacuum cleaner 11 (main body case 20). Further, the control unit 26 includes a communication control unit 67 that is electrically connected to the communication unit 25. Further, when the vacuum cleaner 11 includes a display unit, a display control unit that is electrically connected to the display unit may be included. Further, the control unit 26 is electrically connected to the secondary battery. The control unit 26 may include a non-volatile memory such as a flash memory. Further, the control unit 26 may include a charge control unit that controls charging of the secondary battery.
- the travel control unit 61, the cleaning control unit 62, the sensor connection unit 63, the determination unit 64, the map creation unit 65, the route setting unit 66, the communication control unit 67, the display control unit, and the charge control unit are the same in this embodiment.
- Each is provided in the control unit 26, but may be separate from the control unit 26, or may be combined with the control unit 26 by combining any of them, or may be integrated with the control unit 26 separately.
- the travel control unit 61 controls the drive of the motor 33, that is, controls the drive of the motor 33 by rotating the motor 33 forward or backward by controlling the magnitude and direction of the current flowing through the motor 33.
- the driving of the driving wheels 21 is controlled by controlling the driving of the motor 33.
- the travel control unit 61 is configured to control the driving of the drive wheels 21 (motor 33) so that the vacuum cleaner 11 (main body case 20) travels along the travel route set by the route setting unit 66. ing.
- the cleaning control unit 62 controls driving of the electric blower 35, the brush motor 37, and the side brush motor 39 of the cleaning unit 22, that is, the energization amounts of the electric blower 35, the brush motor 37, and the side brush motor 39 are separately provided.
- the drive of the electric blower 35, the brush motor 37 (rotary brush 36), and the side brush motor 39 (side brush 38) is controlled.
- the cleaning control unit 62 functions as an electric blower control unit (electric blower control unit) that controls the driving of the electric blower 35 and a rotation control unit (rotation control) that controls the rotation of the rotary brush 36 (brush motor 37).
- the sensor connection unit 63 acquires a detection result by the sensor unit 23.
- the determination unit 64 extracts feature points and the like from the image captured by the camera 51, so that the shape of the object (such as an obstacle) located around the vacuum cleaner 11 (main body case 20) (object distance and For example, height).
- the determination unit 64 uses a known method to calculate the distance (depth) and three-dimensional coordinates of the object (feature point) based on the image captured by the camera 51 and the distance between the cameras 51. It is configured. That is, the determination unit 64 specifically includes the distance f (parallax) between the cameras 51 and 51 and the object O (feature point SP) of the images G1 and G2 captured by the cameras 51 and 51, and the camera 51.
- the determination unit 64 creates a parallax image (distance image) GL based on the images G1 and G2, and detects the height H and width W of the captured object O based on the parallax image GL. (Fig. 5 (a), Fig. 5 (b), Fig. 5 (c)).
- the determination unit 64 can also calculate the distance from the amount of movement of the coordinates of the object when the vacuum cleaner 11 (main body case 20) moves.
- the determination unit 64 is set in advance with the distance of an object imaged in a predetermined image range (for example, an image range set corresponding to the width and height of the main body case 20) by the camera 51, for example. Or an object located at a distance (distance from the vacuum cleaner 11 (main body case 20)) equal to or less than this set distance is determined to be an obstacle. It is configured. Therefore, the determination unit 64 is a function of the obstacle determination unit that determines whether or not the object whose distance from the vacuum cleaner 11 (main body case 20) has been calculated based on the image captured by the camera 51 is an obstacle. It has. The function of the obstacle determination unit may be received integrally with the determination unit 64, or may be separate from the determination unit 64.
- the determination unit 64 has a function of determining the type of the floor surface. More specifically, the determination unit 64 determines the type of the floor surface based on the specific shape in the image captured by the camera 51. The determination unit 64 determines the type of the floor surface using a specific shape such as a line LI, a corner CO, or a line intersection CR (FIG. 6) located on the floor surface. More specifically, the determination unit 64 determines the type of the floor surface based on at least one of the distribution of the specific shape and the combination of the specific shape. As the floor surface determined by the determination unit 64, for example, the tatami mat T (FIG. 7 (a)) as the first surface to be cleaned (floor surface) and the flooring FL as the second surface to be cleaned (floor surface).
- a specific shape such as a line LI, a corner CO, or a line intersection CR (FIG. 6) located on the floor surface. More specifically, the determination unit 64 determines the type of the floor surface based on at least one of the distribution of the specific shape and
- the determination unit 64 includes an image correction function that performs primary image processing such as lens distortion correction, noise removal, contrast adjustment, and image center matching of a raw image captured by the camera 51, for example. Also good. Further, the determination unit 64 may include a function of an imaging control unit that controls driving of the camera 51 and the lamp 53.
- the map creation unit 65 is based on the shape (distance and height of the obstacle). A map (map) indicating whether or not the vehicle can travel in the cleaning area is created. Specifically, the map creating unit 65 estimates the self-position of the vacuum cleaner 11 based on the three-dimensional coordinates of the feature points of the object in the image captured by the camera 51, and based on the estimation of the self-position. Then, a map describing the positional relationship and height of an object (obstacle) located in the cleaning region detected by the determination unit 64 is created.
- the map creating unit 65 has a function of self-position estimating means (self-position estimating unit) for estimating the self-position of the vacuum cleaner 11.
- the map creation unit 65 can use a known SLAM (simultaneous localization and mapping) technique.
- the map created by the map creation unit 65 may be stored in the map creation unit 65 or may be stored in a memory (storage unit).
- the map creation unit 65 can also store (mark) the position of a specific shape on the floor surface such as a line, corner, or line intersection on the map.
- the route setting unit 66 sets the travel route of the vacuum cleaner 11 (main body case 20) according to the type of floor surface determined by the determination unit 64 based on the map created by the map creation unit 65. .
- the route setting unit 66 can set a traveling route for tatami mats, a traveling route for flooring, a traveling route for rugs, and a traveling route for other floor surfaces. If the map of the cleaning area has already been created, the route setting unit 66 may travel according to the map. If the map has not been created, the route setting unit 66 sets the travel route while creating the map. To do. The specific travel route setting by the route setting unit 66 will be described later.
- the communication control unit 67 controls the operation of the communication unit 25 so that a map created by the map creation unit 65 via the communication unit 25, a travel route set by the route setting unit 66, or a vacuum cleaner 11 (main body case 20) is used to transmit various information such as a travel locus to an external device or the like.
- the communication control unit 67 may be provided integrally with the communication unit 25.
- the display control unit displays predetermined information by controlling the driving of the display unit.
- the display control unit may be provided integrally with the display unit.
- the display unit is, for example, an LCD or LED. This display unit may be disposed at a position where it can be seen from the outside of the vacuum cleaner 11, such as the upper surface of the main body case 20, for example.
- the display unit may be integrally provided with an input means such as a touch panel through which a user directly inputs data such as a command.
- the input / output unit acquires a control command transmitted from an external device such as a remote controller (not shown), a control command input from a switch provided on the main body case 20 or an input means such as a touch panel, and a charging device, for example.
- a signal is transmitted to This input / output unit transmits a wireless signal (infrared signal) to a charging device or the like, for example, a transmitting means (transmitting unit) (not shown) such as an infrared light emitting element, and a wireless signal (infrared signal from a charging device or a remote controller).
- a phototransistor not shown
- the like not shown.
- the secondary battery supplies power to the cleaning unit 22, the sensor unit 23, the imaging unit 24, the communication unit 25, the control unit 26, and the like.
- the secondary battery may be electrically connected to a charging terminal 71 as a connecting portion exposed at, for example, the lower portion of the main body case 20.
- the charging terminals 71 may be electrically and mechanically connected to the charging device side so that the secondary battery is charged via the charging device.
- the charging device has a built-in charging circuit such as a constant current circuit. Further, the charging device is provided with a charging terminal for charging the secondary battery. The charging terminal is electrically connected to the charging circuit, and is mechanically and electrically connected to the charging terminal 71 of the vacuum cleaner 11 that has returned to the charging device.
- the external device can be wired or wirelessly communicated with the network inside the building, for example via a home gateway, and can be wired or wirelessly communicated with the network outside the building, for example, a PC (tablet terminal (tablet PC )) And general-purpose devices such as smartphones (cell phones).
- the external device may have a display function for displaying an image.
- the vacuum cleaner 11 cleans the floor while traveling based on the map, and updates the map as needed.
- the vacuum cleaner 11 returns to the charging device and then shifts to a standby state or a secondary battery charging operation.
- the vacuum cleaner 11 receives, for example, a cleaning start control command transmitted by a remote controller or an external device by an input / output unit when a preset cleaning start time is reached. Cleaning starts at an appropriate timing such as when the vacuum cleaner 11 is connected to the charging device, the traveling control unit 61 controls the driving of the drive wheels 21 (motor 33) so that the vacuum cleaner 11 goes straight away from the charging device by a predetermined distance. Moreover, when not connected to the charging device, cleaning is started from the spot.
- the traveling control unit 61 controls the driving wheel 21 (motor 33) to cause the vacuum cleaner 11 (main body case 20) to autonomously travel along the set traveling route. Meanwhile, the cleaning control unit 62 operates the cleaning unit 22 to clean the floor surface of the cleaning area. If the map has not been created, the travel control unit 61 controls the drive wheel 21 (motor 33) to move the vacuum cleaner 11 (main body case 20) along a predetermined travel route, or at random or zigzag.
- the map creation unit 65 creates a map and the route setting unit 66 sets a travel route (map creation operation) while the cleaning control unit 62 operates the cleaning unit 22 to perform cleaning while traveling in a shape.
- the dust on the floor surface is sucked through the suction port 31 by the electric blower 35, the rotating brush 36 (brush motor 37), or the side brush 38 (side brush motor 39) driven by the cleaning control unit 62. Collected in the dust collector 40.
- the vacuum cleaner 11 detects the three-dimensional coordinates of an object such as an obstacle that is not recorded on a map stored in advance by the determination unit 64 based on an image captured by the camera 51 during autonomous traveling, If a specific shape of the floor surface not shown on the map is detected, or if the sensor unit 23 detects a running obstacle not shown on the map, the map creation unit 65 can also store the map on the map.
- the cleaning operation is terminated, and the vacuum cleaner 11 is controlled so that the travel control unit 61 controls driving of the drive wheels 21 (motor 33) and returns to the charging device.
- the connection (the charging terminal 71 and the charging terminal are mechanically and electrically connected), and, for example, after a predetermined time from this connection, transition to, for example, a charging operation or a standby operation is performed.
- the travel control unit 61 controls the driving of the driving wheels 21 (motor 33) so that the vacuum cleaner 11 travels along a predetermined travel route in the cleaning area or randomly or zigzag (search travel) ), And the map creation unit 65 creates a map that reflects these running obstacles and floor types by detecting running obstacles and determining the type of floor surface by the camera 51 and the determination unit 64 and the sensor unit 23. To do.
- the vacuum cleaner 11 After starting cleaning, the vacuum cleaner 11 performs a search run and determines that the determination unit 64 has detected an obstacle based on an image captured by the camera 51 or by the sensor unit 23. When a travel obstacle such as an obstacle, a wall, or a step is detected, the position of the travel obstacle is stored as a map based on the self-position of the vacuum cleaner 11 estimated by the map creation unit 65. At this time, when a specific shape of the floor surface is detected in the image captured by the camera 51, the position of the specific shape is also stored in the map.
- a travel obstacle such as an obstacle, a wall, or a step
- the travel control unit 61 causes the vacuum cleaner 11 (main body case 20) to travel along the line while the map creating unit 65 stores the line in the map. .
- the vacuum cleaner 11 main body case 20
- the drive wheels 21 and the rotation If you can run without damaging the tatami with the brush 36 and the floor is flooring, you can run along the grooves that appear as lines, and if the floor is rugs, the rugs that appear as lines and the floor below Since it can run at the boundary with the surface, the cleaning efficiency can be increased respectively.
- the determination unit 64 uses the floor surface. Determine the type. That is, in the present embodiment, the drive control unit 61 of the drive wheel 21 (motor 33) is caused to travel along the line by the travel control unit 61 until the determination unit 64 determines the type of the floor surface. Control the drive. Note that the timing of determining the type of floor surface by the determination unit 64 may be during running on a line.
- the determination unit 64 can determine the type of the floor surface based on, for example, the number of detected corners and / or the detection interval, and can also determine based on a plurality of specific shapes (combinations of a plurality of specific shapes). . There are various methods for determining the type of floor surface based on a plurality of specific shapes (a combination of a plurality of specific shapes). For example, the determination unit 64 determines the width between lines and the intersections (T-shaped). The type of floor surface can also be determined based on the minimum interval or the corner detection interval.
- the determination unit 64 determines that the floor surface is flooring, for example, when the width between lines is equal to or less than a predetermined value, for example, 200 mm or less, and when the minimum interval between intersections is equal to or greater than a predetermined value, for example, 800 mm or more, If the floor surface is determined to be a tatami mat and the corner detection interval is not less than a predetermined value, for example, 500 mm or more, it is determined that the floor surface is a rug. In addition, for example, even when a carpet or other rug is present in part of the flooring, it is possible to determine a plurality of floor types as long as each condition is satisfied.
- the floor surface is likely to be, for example, a tiled floor surface other than flooring, tatami mats, or rugs. Then, the detection of the specific shape of the floor surface is continued while creating a map while detecting a running obstacle or the like by the determination unit 64, the sensor unit 23, and the like.
- the map creation unit 65 registers the floor type in the map, and the route setting unit 66 sets the travel route.
- a specific example of setting the travel route by the route setting unit 66 will be described.
- the case where it is determined that the floor surface is tatami, the case where it is determined that the floor surface is flooring, and the case where it is determined that the floor surface is rugs will be described as examples.
- the electric vacuum cleaner 11 (main body case 20) preferably travels along the tatami mat eyes. Therefore, in the route setting unit 66, when the determination unit 64 determines that the floor type is a tatami mat, the travel route along the tatami eyes based on the layout of the tatami mat estimated based on the distribution of the specific shape. Set. More specifically, when the route setting unit 66 determines that the floor type is a tatami mat, the route setting unit 66 estimates the arrangement of the tatami based on the distribution of the specific shape on the map detected until the floor type is determined. The travel route along the tatami eyes is calculated.
- the arrangement of the tatami mat T in the so-called four-quarter-half cleaning area shown in FIGS. 8A and 8B will be described as an example.
- the route setting unit 66 arranges intersections and corner positions on the map as specific shapes detected when the vacuum cleaner 11 (main body case 20) travels on a line (FIG. 8A, etc.). Position P) indicated by a circle. The route setting unit 66 calculates the interval between these positions. Then, if there is a place where the interval is not less than a predetermined value, for example, 1500 mm or more, the route setting unit 66 can determine that the long side of the tatami mat. Although there are several types of tatami dimensions, there is no significant difference in the shape of the tatami, and the ratio of the long side to the short side is 2: 1. Further, tatami mats (indicated by thin lines in FIGS.
- the arrangement of the semi-tatami mats can be determined based on the arrangement of adjacent tatami mats. That is, in general, there is a rule in how to lay tatami as a custom in Japan, and the tatami mats for half tatami mats are often laid so as not to be parallel to the adjacent tatami mats for one tatami mat.
- laying tatami mats in a saddle shape or crossing in a cross shape is said to be a non-congratulatory lay, and it is considered a bad practice as a Japanese custom, so usually how to lay tatami mats like this Tend to be avoided. Therefore, by adopting these rules on how to lay tatami mats in the determination of the tatami eyes in the path setting unit 66, it is possible to efficiently determine the arrangement of the tatami mats and the direction of the eyes.
- the path setting unit 66 determines the width of the line for determining the arrangement of the tatami T5 and the direction of the eyes. Is used. In other words, the route setting unit 66 can also set the travel route on the tatami on the basis of the line width. That is, the tatami T has the tatami edge TB for reinforcement arranged along the long side, so that the tatami edge TB is adjacent when the tatami mat T5 for the semi-tatami is arranged in the approximate center of the cleaning area. Overlapping tatami mats T5 doubles the line width.
- the map creating unit 65 stores the location where the width of the line is doubled in the map, and the route setting unit 66 uses the position information of the location where the width of the line is doubled. It becomes possible to determine the direction of the tatami eyes. For example, even when an intersection or a corner cannot be detected satisfactorily by an obstacle such as furniture, the layout of the tatami mats and the direction of the eyes can be estimated in the route setting unit 66 by extracting the line width.
- the route setting unit 66 can be used even when the size of the cleaning area is different.
- the arrangement of the tatami T can be estimated. That is, in the examples of FIGS. 9A, 9B, and 9C, the tatami edge TB is adjacent at the position of the region A surrounded by the broken line, and the line width is doubled.
- the route setting unit 66 basically sets the travel route so as to perform the zigzag travel along the eyes of the tatami mat.
- FIGS. 10 (a), 10 (b), and 10 (c) show examples of a travel route RT corresponding to FIGS. 9 (a), 9 (b), and 9 (c).
- the turn-back point in the travel route RT is set inside the tatami T. May be set on the tatami edge TB so as not to oppose the eyes of the tatami T (FIG. 11 (a)).
- FIG. 11 (b) when the direction of the adjacent tatami mats is different (FIG. 11 (b)), even when the folded portion in the travel route RT is overlapped with the adjacent tatami T, Countering the eyes of the tatami T can be reduced.
- the route setting unit 66 sets a travel route along the groove GR (FIG. 7B) based on the distribution of the specific shape. . More specifically, when the determination unit 64 determines that the floor surface type is flooring, the route setting unit 66 travels along a line that is adjacent to a specific shape, and turns back at a position such as an end thereof. That is, the travel route is set so as to travel in a zigzag manner along the line. As a result, the dust that has entered the flooring groove detected as a line can be effectively cleaned by the cleaning unit 22.
- the route setting unit 66 estimates a region in the rug based on the distribution of the specific shape. More specifically, when the determining unit 64 determines that the floor type is a rug, the route setting unit 66 is information on the boundary with the floor detected as a line, or the positions of the four corners detected as corners. Based on the above, the area in the rugs is estimated. This estimation is possible if at least two sides of the rug are known.
- the route setting unit 66 preferably sets the travel route so that, for example, the same position can be reciprocated so that dust behind the fur of the rug can be cleaned.
- the travel control unit 61 drives the drive wheel so that the vacuum cleaner 11 (main body case 20) travels twice on the same straight line, moves to the next straight line, and further travels twice on this straight line.
- the rugs can be effectively cleaned by controlling the drive of the motor 21 (motor 33).
- the cleaning control unit 62 changes the operation of the cleaning unit 22 in accordance with the type of floor surface determined by the determination unit 64. For example, when the floor surface is a tatami mat, when turning back during zigzag traveling, the driving of the cleaning unit 22 is reduced (including stoppage), whereby the tatami eyes can be more effectively prevented from being damaged.
- the cleaning control unit 62 reduces the rotational force of the rotating brush 36 (brush motor 37) when the traveling route set by the route setting unit 66 travels against the tatami eyes. By including the tatami mat, it is possible to effectively prevent the tatami eyes from being damaged due to the rotation of the rotating brush 36 in contact with the tatami mat.
- the cleaning control unit 62 can increase the driving force of the cleaning unit 22 to efficiently clean the rugs.
- the cleaning control unit 62 when the floor surface determined by the determination unit 64 is rugs, the suction force of the electric blower 35, the rotational force of the rotary brush 36 (brush motor 37), and the side brush 38 By increasing at least one of the rotational force of the (side brush motor 39), the rugs can be carefully cleaned.
- the traveling control unit 61 controls the driving of the drive wheels 21 (motor 33) so as to reduce the traveling speed of the electric vacuum cleaner 11 (main body case 20), thereby cleaning the cleaning unit 22 for each position on the floor surface. By increasing the cleaning power by, you can clean more effectively.
- the map creation unit 65 When cleaning after the map is created by the map creation unit 65, if there is a difference from the current self-position with respect to the position of the running obstacle, the position of the specific shape, or the position of the floor surface stored in the map By correcting the self position one by one by the map creating unit 65, it is possible to eliminate the accumulated error of the position of the vacuum cleaner 11 in the cleaning area and grasp the accurate position, and to travel along the travel route with high accuracy. Become. That is, the map creation unit 65 corrects the self-position of the vacuum cleaner 11 based on the detection of the specific shape. In addition, the travel route set by the route setting unit 66 and the travel locus of the vacuum cleaner 11 (main body case 20) can be notified to the user.
- the communication unit 25 transmits a travel route and a travel locus to a server on the network via the home gateway, and the user accesses the server through the Internet by an external device such as a smartphone or a PC,
- An external device can be notified by mail or can be monitored by a dedicated external device. It can also be displayed on the display part of the vacuum cleaner 11 or the like.
- This control generally includes a detection phase for detecting a specific shape, a determination phase for determining the type of the floor and registering the type of the floor on the map, and a setting phase for setting the travel route based on the determined type of the floor And a cleaning phase in which cleaning is performed while traveling along the travel route.
- step S1 when cleaning is started, the travel control unit 61 controls driving of the drive wheels 21 (motor 33) so that the electric vacuum cleaner 11 (main body case 20) travels normally, for example, randomly (step S1).
- step S2 based on the image captured by the sensor unit 23 or the camera 51, it is determined whether the determination unit 64 has detected a line as a specific shape within a predetermined distance in the traveling direction of the vacuum cleaner 11 (main body case 20).
- step S3 determines whether or not to end the cleaning.
- step S3 when it is determined that the cleaning is to be finished, the cleaning is finished (step S4), and the process returns to, for example, a charging device. If it is determined in step S3 that the cleaning is not finished, the process proceeds to step S1.
- step S2 If it is determined in step S2 that the determination unit 64 has detected a line, the travel control unit 61 drives the drive wheels 21 (motor 33) so that the vacuum cleaner 11 (main body case 20) travels on the line. At the same time, the map creation unit 65 stores the position of this line on the map (step S5).
- step S6 determines whether or not an intersection (for example, a T shape) is detected as the specific shape.
- step S6 if the determination unit 64 determines that an intersection has been detected, the map creation unit 65 stores the position of the intersection on the map (step S7). On the other hand, if it is determined in step S6 that the determination unit 64 does not detect an intersection, the process directly proceeds to step S8.
- the determination unit 64 determines whether or not a corner is detected as the specific shape (step S8). If the determination unit 64 determines in step S8 that the corner has been detected, the map creation unit 65 stores the position of this corner on the map (step S9). On the other hand, when the determination unit 64 determines in step S8 that the corner is not detected, the process proceeds to step S10 as it is.
- step S6 and step S7 and step S8 and step S9 are not limited.
- step S10 determines whether or not the vacuum cleaner 11 (main body case 20) has traveled all on the line. If it is determined in step S10 that the vehicle is not traveling all along the line, the process proceeds to step S6. If it is determined in step S10 that the vehicle has traveled all along the line, the process proceeds to step S11.
- the path setting unit 66 determines whether or not the detected interval between the lines is equal to or smaller than a predetermined value, for example, 200 mm (step S11). If it is determined in step S11 that the line interval is equal to or smaller than the predetermined (200 mm), the path setting unit 66 determines that the floor type is flooring (step S12). If it is determined in step S11 that the line interval is not less than or equal to a predetermined value (greater than a predetermined value), the route setting unit 66 determines whether or not the detected minimum interval of the intersection is not less than a predetermined value, for example, 800 mm or more. (Step S13).
- a predetermined value for example, 200 mm
- step S13 If it is determined in step S13 that the minimum interval between intersections is equal to or greater than a predetermined (800 mm), the route setting unit 66 determines that the floor type is tatami (step S14). Also, in this step S13, when it is determined that the minimum interval of the intersection is not greater than or equal to a predetermined value (less than the predetermined value), the route setting unit 66 determines whether or not the detected angular interval is a predetermined value, for example, 500 mm or more. (Step S15). If it is determined in step S15 that the corner interval is equal to or greater than the predetermined (500 mm), the path setting unit 66 determines that the floor type is a rug (step S16).
- step S15 when it is determined that the corner interval is not greater than or equal to a predetermined value (less than a predetermined value), the route setting unit 66 determines that the floor type is neither flooring, tatami mat, or rugs, It determines with it being a floor surface, and progresses to step S1. Note that these steps S11 and S12, steps S13 and S14, and steps S15 and S16 may be in any order. Then, after step S12, step S14, and step S16, the map creation unit 65 stores the determined floor type in the map (step S17).
- step S17 the route setting unit 66 sets a travel route according to the determined floor type (step S18).
- step S19 the travel control unit 61 controls the operation of the drive wheels 21 (motor 33) so that the vacuum cleaner 11 (main body case 20) travels along the travel route set by the route setting unit 66. .
- the cleaning control unit 62 drives the cleaning unit 22 to clean the floor surface. At this time, the cleaning control unit 62 can also change the operation of the cleaning unit 22 according to the type of the floor surface.
- a predetermined operation is performed, for example, cleaning is finished and the battery is returned to the charging device.
- the travel control unit 61 controls the driving of the drive wheels 21 (the motor 33) so that the electric vacuum cleaner 11 (main body case) can be set along the travel route set by the route setting unit 66.
- autonomously running 20 it can be efficiently cleaned according to the type of floor.
- a travel route that takes into account the type of floor surface compared to simply setting the travel route based on the map created by the map creation unit 65, it is against the eyes of the tatami mats, or in the flooring groove. It is possible to solve problems such as that dust that has entered cannot be removed or that dust that has entered the back of the fur of the rug cannot be removed.
- the determination unit 64 determines the type of the floor surface based on the specific shape in the image captured by the camera 51, so that, for example, the torque of the motor 33 that drives the driving wheel 21 or the reflection of light on the floor surface causes the floor surface to be reflected. Compared to the case of sensing the feature, an effective material for easily and accurately determining the type of the floor surface can be detected by the determination unit 64.
- the camera 51 captures an image for creating a map of the cleaning area or detecting a running obstacle, the type of the floor surface is determined using the image of the camera 51. Therefore, it is not necessary to separately provide a dedicated imaging means for determining the type of the floor surface, and the configuration of the vacuum cleaner 11 can be simplified.
- the map creation unit 65 stores the position of the specific shape in the map, so that when the determination unit 64 determines the type of the floor surface, the arrangement and interval of the specific shape can be easily used. The determination accuracy can be improved.
- Detecting a line as a specific shape makes it possible to detect, for example, the edges of tatami mats, flooring grooves, rugs, and the boundary between the floor below. Therefore, an effective determination material can be detected when determining the type of the floor surface with high accuracy and easily by the determination unit 64.
- the traveling control unit 61 can determine the type of the floor surface by controlling the driving of the driving wheel 21 (motor 33) so that the vacuum cleaner 11 (main body case 20) travels along the line. Even in the absence, the driving wheel 21 and the rotating brush 36 do not easily damage the floor surface such as a tatami mat.
- Detecting a line intersection as a specific shape makes it possible to detect, for example, tatami corners, flooring grooves, and the like based on the positions and intervals of the intersections. Therefore, it is possible to detect an effective determination material when determining the type of the floor surface with high accuracy and easily by the determination unit 64.
- Detecting a corner as a specific shape makes it possible to detect, for example, a corner of a rug based on the position and interval of the corner. Therefore, it is possible to detect an effective determination material when determining the type of the floor surface with high accuracy and easily by the determination unit 64.
- the determination unit 64 can determine the type of the floor surface with high accuracy by determining the type of the floor surface based on the distribution of the number of specific shapes and the detection interval.
- the determination unit 64 determines the type of the floor surface based on the plurality of specific shapes, so that the type of the floor surface can be accurately determined by combining detection of the plurality of specific shapes.
- the route setting unit 66 sets the travel route along the tatami eyes based on the tatami layout estimated based on the distribution of the specific shape.
- the tatami mat is less likely to be damaged by the driving wheel 21 and the rotating brush 36.
- the route setting unit 66 sets the travel route on the tatami on the basis of the width of the line having a specific shape, so that the arrangement of the tatami and the direction of the eyes can be efficiently estimated based on the difference in the width of the tatami edge.
- the setting of the travel route by the route setting unit 66 can be made efficient.
- the determination unit 64 determines the type of the floor surface based on the specific shapes such as lines, intersections, and corners captured by the camera 51 in this way, the floor surface type can be easily obtained without performing advanced image processing. Can be determined.
- the cleaning control unit 62 reduces the rotational force of the rotary brush 36 (brush motor 37) to rotate. The risk of damaging the tatami with the brush 36 can be reduced.
- the route setting unit 66 sets the traveling route along the groove based on the distribution of the specific shape, thereby efficiently cleaning the dust that has entered the flooring groove. it can.
- the route setting unit 66 sets the travel route for reciprocating in the area of the rugs estimated based on the distribution of the specific shape. It can be cleaned carefully, and dust that gets into the back of hair can be cleaned more reliably.
- the cleaning control unit 62 changes the operation of the cleaning unit 22 according to the type of floor surface determined by the determination unit 64, for example, when cleaning the rugs, the cleaning control unit 62 cleans the cleaning unit 22.
- Force the suction force of the electric blower 35, the rotational force of the rotating brush 36 (brush motor 37) and the side brush 38 (side brush motor 39)
- the traveling control unit 61 is used in the vacuum cleaner 11 (main body case 20). More efficient cleaning according to the type of the floor surface, such as controlling the drive of the drive wheel 21 (motor 33) so as to reduce the traveling speed of the vehicle, becomes possible.
- the self-position integration error can be eliminated, and cleaning along the travel route can be performed with high accuracy.
- the communication unit 25 to notify the traveling route or traveling locus of the electric vacuum cleaner 11 (main body case 20), it is possible to give the user recognition of cleaning performance and a sense of security.
- the function of the self-position estimation unit is provided integrally with the map creation unit (mapping unit) 65, but may be provided separately from the map creation unit 65.
- the vacuum cleaner 11 is provided with the camera 51, and the type of the floor surface is determined based on the image captured by the camera 51.
- the camera and the vacuum cleaner installed on the ceiling or the like of the cleaning area By making it possible to transmit and receive data to and from 11 wirelessly or by wire, the type of floor may be determined based on an image captured by a camera installed on the ceiling or the like.
- the travel route or travel locus of the vacuum cleaner 11 is notified by being transmitted to the external device via the communication unit 25 and displayed on the external device.
- the display unit of the vacuum cleaner 11 is notified. As a means, it can also be displayed directly on this display unit.
- a map of the cleaning area is created based on the self-position estimation, the type of the surface to be cleaned is determined, and the travel route is set based on the type of the surface to be cleaned determined as the map.
- a travel control method for a vacuum cleaner characterized in that the main body autonomously travels along a travel route.
- the travel route is set along the eyes of the tatami based on the tatami layout estimated based on the distribution of the specific shape (2 )
- the electric vacuum cleaner traveling control method according to any one of the above.
- a travel route for reciprocating in the area of the rug estimated based on the distribution of the specific shape is set (2) to (13) )
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Abstract
Description
まず、掃除が開始すると、電気掃除機11(本体ケース20)が通常走行、例えばランダム走行するように走行制御部61が駆動輪21(モータ33)の駆動を制御する(ステップS1)。次いで、センサ部23、あるいはカメラ51により撮像された画像に基づいて判定部64が電気掃除機11(本体ケース20)の進行方向の所定距離以内に特定形状として線を検出したか否かを判定する(ステップS2)。このステップS2において、判定部64が線を検出しないと判定した場合には、電気掃除機11は掃除を終了するか否かを判定する(ステップS3)。そして、このステップS3において、掃除を終了すると判定した場合には、掃除を終了し(ステップS4)、例えば充電装置などに帰還する。また、このステップS3において、掃除を終了しないと判定した場合には、ステップS1に進む。
経路設定部66は、検出した線の間隔が所定以下、例えば200mm以下であるか否かを判定する(ステップS11)。このステップS11において、線の間隔が所定(200mm)以下であると判定した場合、経路設定部66は、床面の種類がフローリングであると判定する(ステップS12)。また、このステップS11において、線の間隔が所定以下でない(所定より大きい)と判定した場合、経路設定部66は、検出した交差点の最小間隔が所定以上、例えば800mm以上であるか否かを判定する(ステップS13)。このステップS13において、交差点の最小間隔が所定(800mm)以上であると判定した場合、経路設定部66は、床面の種類が畳であると判定する(ステップS14)。また、このステップS13において、交差点の最小間隔が所定以上でない(所定未満である)と判定した場合、経路設定部66は、検出した角の間隔が所定、例えば500mm以上であるか否かを判定する(ステップS15)。このステップS15において、角の間隔が所定(500mm)以上であると判定した場合、経路設定部66は、床面の種類が敷物類であると判定する(ステップS16)。また、このステップS15において、角の間隔が所定以上でない(所定未満である)と判定した場合、経路設定部66は、床面の種類が、フローリング、畳、敷物類のいずれでもない、その他の床面であると判定し、ステップS1に進む。なお、これらステップS11およびステップS12と、ステップS13およびステップS14と、ステップS15およびステップS16とは、それらの順序を問わない。そして、ステップS12、ステップS14、ステップS16の後、地図作成部65は、判定した床面の種類を地図に記憶する(ステップS17)。
ステップS17の後、経路設定部66は、判定した床面の種類に応じて走行経路を設定する(ステップS18)。
ステップS18の後、電気掃除機11は掃除を続行する(ステップS19)。このステップS19において、走行制御部61は、経路設定部66により設定された走行経路に沿って電気掃除機11(本体ケース20)を走行させるように駆動輪21(モータ33)の動作を制御する。また、掃除制御部62は、掃除部22を駆動させて床面を掃除する。このとき、掃除制御部62は、床面の種類に応じて掃除部22の動作を変化させることもできる。
ことを特徴とした電気掃除機の走行制御方法。
ことを特徴とした(1)記載の電気掃除機の走行制御方法。
ことを特徴とした(2)記載の電気掃除機の走行制御方法。
ことを特徴とした(2)または(3)記載の電気掃除機の走行制御方法。
ことを特徴とした(4)記載の電気掃除機の走行制御方法。
ことを特徴とした(2)または(3)記載の電気掃除機の走行制御方法。
ことを特徴とした(2)または(3)記載の電気掃除機の走行制御方法。
ことを特徴とした(2)ないし(7)いずれか一記載の電気掃除機の走行制御方法。
ことを特徴とした(2)ないし(7)いずれか一記載の電気掃除機の走行制御方法。
ことを特徴とした(2)ないし(9)いずれか一記載の電気掃除機の走行制御方法。
ことを特徴とした(10)記載の電気掃除機の走行制御方法。
ことを特徴とした(10)または(11)記載の電気掃除機の走行制御方法。
ことを特徴とした(2)ないし(12)いずれか一記載の電気掃除機の走行制御方法。
ことを特徴とした(2)ないし(13)いずれか一記載の電気掃除機の走行制御方法。
ことを特徴とした(1)ないし(14)いずれか一記載の電気掃除機の走行制御方法。
ことを特徴とした(1)ないし(15)いずれか一記載の電気掃除機の走行制御方法。
ことを特徴とした(1)ないし(16)いずれか一記載の電気掃除機の走行制御方法。
Claims (17)
- 本体と、
この本体を走行可能とする走行駆動部と、
掃除をする掃除部と、
自己位置を推定する自己位置推定手段と、
この自己位置推定手段による自己位置の推定に基づき掃除領域の地図を作成するマッピング手段と、
被掃除面の種類を判定する判定手段と、
前記マッピング手段により作成した地図と前記判定手段により判定した被掃除面の種類とに基づき走行経路を設定する設定手段と、
前記走行駆動部の駆動を制御することで前記設定手段により設定された走行経路に沿って前記本体を自律走行させる走行制御手段と
を具備したことを特徴とした電気掃除機。 - 判定手段は、被掃除面を撮像可能なカメラにより撮像した画像中の特定形状に基づいて被掃除面の種類を判定する
ことを特徴とした請求項1記載の電気掃除機。 - マッピング手段は、特定形状の位置を地図に記憶する
ことを特徴とした請求項2記載の電気掃除機。 - 前記特定形状は、線である
ことを特徴とした請求項2または3記載の電気掃除機。 - 走行制御手段は、線に沿って本体を走行させるように走行駆動部の駆動を制御する
ことを特徴とした請求項4記載の電気掃除機。 - 前記特定形状は、線の交差点である
ことを特徴とした請求項2または3記載の電気掃除機。 - 前記特定形状は、角である
ことを特徴とした請求項2または3記載の電気掃除機。 - 判定手段は、特定形状の分布に基づいて被掃除面の種類を判定する
ことを特徴とした請求項2ないし7いずれか一記載の電気掃除機。 - 判定手段は、複数の特定形状に基づいて被掃除面の種類を判定する
ことを特徴とした請求項2ないし7いずれか一記載の電気掃除機。 - 設定手段は、判定手段により被掃除面が畳であると判定した場合、特定形状の分布に基づいて推定される畳の配置に基づき、この畳の目に沿って走行経路を設定する
ことを特徴とした請求項2ないし9いずれか一記載の電気掃除機。 - 設定手段は、特定形状である線の幅に基づいて畳上の走行経路を設定する
ことを特徴とした請求項10記載の電気掃除機。 - 回転により被掃除面の塵埃を掻き出す回転清掃体と、
この回転清掃体の回転を制御する回転制御手段とを具備し、
前記回転制御手段は、設定手段により設定された走行経路に畳の目に対して逆らって走行する箇所がある場合に、前記回転清掃体の回転力を低下させる
ことを特徴とした請求項10または11記載の電気掃除機。 - 設定手段は、判定手段により被掃除面がフローリングであると判定した場合、特定形状の分布に基づいて溝に沿って走行経路を設定する
ことを特徴とした請求項2ないし12いずれか一記載の電気掃除機。 - 設定手段は、判定手段により被掃除面が敷物類と判定した場合、特定形状の分布に基づいて推定される前記敷物類の領域内を往復走行する走行経路を設定する
ことを特徴とした請求項2ないし13いずれか一記載の電気掃除機。 - 判定手段により判定した被掃除面の種類に応じて掃除部の動作を変化させる掃除制御手段を具備した
ことを特徴とした請求項1ないし14いずれか一記載の電気掃除機。 - 自己位置推定手段は、特定形状の検出に基づき自己位置を補正する
ことを特徴とした請求項1ないし15いずれか一記載の電気掃除機。 - 走行経路または走行軌跡を報知する報知手段を具備した
ことを特徴とした請求項1ないし16いずれか一記載の電気掃除機。
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JP6831210B2 (ja) * | 2016-11-02 | 2021-02-17 | 東芝ライフスタイル株式会社 | 電気掃除機 |
CN113226143A (zh) * | 2018-12-18 | 2021-08-06 | 特里纳米克斯股份有限公司 | 自主家用电器 |
JP7280712B2 (ja) * | 2019-02-27 | 2023-05-24 | 東芝ライフスタイル株式会社 | 自律型電気掃除装置 |
JP7349624B2 (ja) * | 2019-08-22 | 2023-09-25 | パナソニックIpマネジメント株式会社 | 自律走行型掃除機、自律走行型掃除機の制御方法、及び、プログラム |
JP7537872B2 (ja) | 2019-12-26 | 2024-08-21 | アマノ株式会社 | 自律走行作業装置 |
WO2021187299A1 (ja) * | 2020-03-18 | 2021-09-23 | ソニーグループ株式会社 | 情報処理装置、情報処理方法およびプログラム |
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