Vacuum cleaner and cleaning system

The integration of an acceleration sensor and estimation device in vacuum cleaners allows for the detection of external impacts, addressing the inability of existing systems to prevent damage from collisions.

JP2025080633APending Publication Date: 2025-05-26MITSUBISHI ELECTRIC CORP
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
JP2023193917
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-11-14
Publication Date
2025-05-26

AI Technical Summary

Technical Problem

Existing vacuum cleaners cannot detect external impacts that may lead to damage, such as collisions with walls, until after damage has occurred.

Method used

A vacuum cleaner and cleaning system equipped with an acceleration sensor capable of detecting acceleration in three axial directions, and an estimation device that estimates the position of an external impact based on the acceleration sensor's detection results, allowing for the detection of potential damage-causing impacts.

Benefits of technology

Enables the detection of external impacts that may cause damage, allowing for preventive measures and reducing the risk of damage to the vacuum cleaner.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 2025080633000001_ABST
    Figure 2025080633000001_ABST
Patent Text Reader

Abstract

To provide a vacuum cleaner and cleaning system that can detect an impact from the outside leading to abnormality such as damage.SOLUTION: A vacuum cleaner includes: suction means for generating an airflow for sucking dust; a suction tool with a suction port; a housing to which the suction tool is detachably attached and that forms an air passage through which the airflow passes between the suction means and the suction tool; an acceleration sensor provided in the housing and capable of detecting an acceleration in three axis directions; and an estimation device for estimating a position of a generated impact applied to the exterior of the housing or the suction tool based on a detection result of the acceleration sensor.SELECTED DRAWING: Figure 5
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present disclosure relates to a vacuum cleaner and a cleaning system.

Background Art

[0002] Patent Document 1 discloses a vacuum cleaner. An acceleration sensor is provided in the vacuum cleaner. In the vacuum cleaner, abnormalities such as clogging of a filter and a non-rotating brush can be detected based on vibrations detected by the acceleration sensor.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, if the vacuum cleaner described in Patent Document 1 collides with a wall during cleaning, there is a risk that the head body or the like will be damaged. In the vacuum cleaner, whether it is abnormal can be detected after such damage has occurred. That is, the vacuum cleaner cannot detect the occurrence of an event leading to damage such as a collision.

[0005] The present disclosure has been made to solve the above problems. An object of the present disclosure is to provide a vacuum cleaner and a cleaning system that can detect an external impact leading to an abnormality such as damage.

Means for Solving the Problems

[0006] The vacuum cleaner according to the present disclosure includes a suction means for generating an air flow for sucking dust, a suction tool having a suction port, a housing to which the suction tool is detachably attached and which forms an air passage through which the air flow passes between the suction means and the suction tool, an acceleration sensor provided in the housing and capable of detecting acceleration in three axial directions, and an estimation device for estimating the position of an impact generated outside the housing or the suction tool based on the detection result of the acceleration sensor.

[0007] The cleaning system according to the present disclosure includes a vacuum cleaner having a suction means for generating an air flow for sucking dust, a suction tool having a suction port, a housing to which the suction tool is detachably attached and which forms an air passage through which the air flow passes between the suction means and the suction tool, an acceleration sensor provided in the housing and capable of detecting acceleration in three axial directions, an estimation device for estimating the position of an impact generated outside the housing or the suction tool based on the detection result of the acceleration sensor, and a display device for calculating and displaying a score regarding how to handle the vacuum cleaner based on the detection result of the acceleration sensor and the result estimated by the estimation device.

[0008] The cleaning system according to the present disclosure includes a vacuum cleaner having a suction means for generating an air flow for sucking dust, a suction tool having a suction port, a housing to which the suction tool is detachably attached and which forms an air passage through which the air flow passes between the suction means and the suction tool, an acceleration sensor provided in the housing and capable of detecting acceleration in three axial directions, an estimation device for calculating the moving speed of the vacuum cleaner based on the detection result of the acceleration sensor, estimating the position of an impact generated outside the housing or the suction tool, and transmitting information including the moving speed of the vacuum cleaner and the position of the impact, and a server device for storing the information including the moving speed of the vacuum cleaner and the position of the impact transmitted from the estimation device.

Effect of the Invention

[0009] According to the present disclosure, the estimation device estimates the position of the generated impact applied to the housing or the suction tool based on the detection result of the acceleration sensor. Therefore, it is possible to detect an external impact that may lead to an abnormality such as damage.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Figure 15

Figure 16

Figure 17

[0011] Embodiments for carrying out the present disclosure will be described with reference to the accompanying drawings. In each figure, the same or corresponding parts are denoted by the same reference numerals. The redundant description of such parts will be simplified or omitted as appropriate. In the following description, dust and other garbage are collectively simply referred to as "dust".

[0012] Embodiment 1. FIG. 1 is a cross-sectional view of the vacuum cleaner in Embodiment 1. FIG. 2 is a functional block diagram of the cleaning system in Embodiment 1.

[0013] As shown in FIG. 1, the vacuum cleaner 1 in Embodiment 1 is a stick-type cleaner. The vacuum cleaner 1 includes a suction means 2, a housing 3, an operating device 4, a suction tool 5, an acceleration sensor 6, a control device 7, a detachment sensor 8, and an estimation device 10.

[0014] The suction means 2 includes an electric blower 2a and a dust collector 2b. The electric blower 2a generates an air current by rotating a fan with a motor. The air current is a suction wind for sucking dust. The dust collector 2b is provided upstream of the electric blower 2a with respect to the air current generated by the electric blower 2a. The dust collector 2b has a dust collection mechanism. When the dust-containing air mixed with dust passes through the dust collection mechanism of the dust collector 2b, it becomes clean air from which the dust has been removed.

[0015] In Embodiment 1, the housing 3 forms the outer contour of the main body portion of the vacuum cleaner 1. That is, the housing 3 has the shape of the main body of a stick-type cleaner. The housing 3 has a storage portion 3a, a connecting pipe portion 3b, and a handle portion 3c. The storage portion 3a houses the suction means 2 therein. An exhaust port 3d is provided in the storage portion 3a. The connecting pipe portion 3b is located upstream of the dust collector 2b with respect to the airflow generated by the electric blower 2a. The connecting pipe portion 3b forms an air duct inside through which the airflow passes. One side of the air duct of the connecting pipe portion 3b is connected to the dust collector 2b. For example, the handle portion 3c is formed on the side opposite to the connecting pipe portion 3b with respect to the storage portion 3a. For example, the handle portion 3c has an arch shape as a shape that is easy for a person to hold.

[0016] The operation device 4 is provided on the handle portion 3c. The operation device 4 is provided with operation buttons. By operating the buttons of the operation device 4, the operation of the vacuum cleaner 1 is controlled.

[0017] The suction tool 5 includes a head body 5a and a pipe body 5b. A suction port 5c and an air duct portion 5d are formed in the head body 5a. The suction port 5c is connected to the air duct portion 5d. Further, the head body 5a has a brush 5e around the suction port 5c.

[0018] The pipe body 5b has a straight tubular shape. An air duct portion 5f is formed inside the pipe body 5b. A first connection portion 5g is formed at one end of the pipe body 5b. A second connection portion 5h is formed at the other end of the pipe body 5b, which is opposite to the one end. The head body 5a is detachably attached to the first connection portion 5g. The second connection portion 5h is detachably attached to the other side of the connecting pipe portion 3b of the housing 3. That is, the pipe body 5b connects the housing 3 and the head body 5a through an air passage.

[0019] The acceleration sensor 6 is provided inside the housing 3. The acceleration sensor 6 can independently detect acceleration in three axial directions: the x direction, the y direction, and the z direction. The acceleration sensor 6 transmits a signal indicating the detection result of the acceleration at a specified period.

[0020] The control device 7 is provided inside the housing 3. The control device 7 controls the operation of the entire vacuum cleaner 1 by controlling the operation of the electric blower 2a based on the content operated by the operating device 4. An acceleration sensor 6 may be provided on the substrate of the control device 7. Further, the control device 7 includes a detachable sensor 8 on the substrate.

[0021] The detachable sensor 8 detects the attachment / detachment state of whether the suction tool 5 is attached to the housing 3. Specifically, the detachable sensor 8 detects whether the pipe body 5b is attached to the connection pipe portion 3b. The detachable sensor 8 detects whether the head body 5a is attached to the pipe body 5b attached to the connection pipe portion 3b. Note that the detachable sensor 8 may detect whether the head body 5a is attached to the connection pipe portion 3b.

[0022] In a state where the suction tool 5 is attached to the housing 3, an air passage is formed by, in order from upstream, the suction port 5c, the air duct portion 5d, the air duct portion 5f, the connection pipe portion 3b, the dust collector 2b, the electric blower 2a, and the exhaust port 3d. In this state, when the electric blower 2a operates under the control of the control device 7, an air flow passing through the inside of the air passage is generated. Dust falling on the floor surface or the like is sucked in as dust-containing air from the suction port 5c by the air flow. The sucked dust-containing air is collected by the dust collector 2b through the head body 5a, the pipe body 5b, and the connection pipe portion 3b of the housing 3. As a result, clean air is generated. The clean air passes through the electric blower 2a and is discharged to the outside of the housing 3 from the exhaust port 3d.

[0023] Further, the vacuum cleaner 1 is provided with an estimation device 10. For example, the estimation device 10 is provided as one function on the substrate of the control device 7. The estimation device 10 estimates the direction, position, and magnitude of the generated impact applied to the outside of the housing 3 or the suction tool 5 using at least the detection result of the acceleration sensor 6. Further, the estimation device 10 may further use the detection result of the detachable sensor 8 when estimating the position and magnitude of the generated impact.

[0024] The estimation result by the estimation device 10 is used by the cleaning system 20. As shown in FIG. 2, the cleaning system 20 includes a cleaner 1, an estimation device 10, a mobile terminal 30, and a server device 40.

[0025] For example, the mobile terminal 30 is a device such as a smartphone, a tablet, a wearable device, a notebook computer, etc. held by the user of the cleaner 1. The mobile terminal 30 exhibits its function as the mobile terminal 30 by installing and executing a dedicated application. The mobile terminal 30 can perform wireless communication with the estimation device 10.

[0026] For example, the server device 40 is a server held by the developer of the cleaner 1. The server device 40 can communicate with the mobile terminal 30 via a network. Note that the server device 40 may be able to communicate with the estimation device 10 without going through the mobile terminal 30 by means of wireless communication or the like.

[0027] As its functions, the estimation device 10 includes an acquisition unit 11, an attitude detection unit 12, a speed calculation unit 13, an impact estimation unit 14, and a communication unit 15. The acquisition unit 11 acquires the detection results of the acceleration sensor 6 and the attachment / detachment sensor 8. Specifically, for example, the acquisition unit 11 converts the detection result of the acceleration sensor 6 into digital data based on the signal transmitted by the acceleration sensor 6 and acquires it.

[0028] The attitude detection unit 12 detects the attitude of the housing 3 at the time of stability based on the detection result of the acceleration sensor 6. The time of stability is a state when the cleaner 1 is performing cleaning. For example, the attitude of the housing 3 is defined by the angle with respect to the horizontal plane of the reference straight line connecting the connection pipe portion 3b and the head body 5a. In this case, the attitude detection unit 12 detects the attitude of the housing 3 by extracting the component indicating the gravitational acceleration from the detection values in the x direction, y direction, and z direction of the acceleration sensor 6.

[0029] The speed calculation unit 13 calculates the moving speed of the cleaner 1 based on the detection result of the acceleration sensor 6. For example, the moving speed of the cleaner 1 may be the speed on the horizontal plane where cleaning is being performed. In this case, the speed calculation unit 13 detects the horizontal acceleration component from the detected values in the x-direction, y-direction, and z-direction of the acceleration sensor 6, and integrates over time to calculate the moving speed of the cleaner 1. Note that the moving speed of the cleaner 1 may be regarded as the moving speed of the housing 3 or the moving speed of the head body 5a.

[0030] The impact estimation unit 14 estimates the direction, position, and magnitude of the impact generated from the outside and applied to the housing 3 or the suction tool 5 based on at least the detection result of the acceleration sensor 6. At this time, the impact estimation unit 14 may further use the detection result of the attachment / detachment sensor 8 for the estimation.

[0031] Specifically, when the change in the acceleration of the cleaner 1 due to the generated impact propagates to the acceleration sensor 6, the impact estimation unit 14 estimates the direction in which the generated impact is applied to the acceleration sensor 6 based on the posture of the housing 3 detected by the posture detection unit 12 and the detected value of the acceleration detected by the acceleration sensor 6.

[0032] The impact estimation unit 14 estimates the direction in which the generated impact is applied to the housing 3 or the suction tool 5 from the direction in which the generated impact is applied to the acceleration sensor 6. That is, the impact estimation unit 14 can estimate the position where the generated impact is applied to the housing 3 or the suction tool 5. Hereinafter, the position where the generated impact is applied will also be referred to as the position of the generated impact. The position of the generated impact is estimated as a part of the cleaner 1. For example, the position of the generated impact is the handle portion 3c of the housing 3, the head body 5a, the connecting pipe portion 3b, etc.

[0033] Subsequently, the impact estimation unit 14 calls the material properties of the members existing between the position of the generated impact and the acceleration sensor 6. The material properties are characteristic values such as the attenuation rate that attenuates the impact when the impact propagates. For example, the amount of change in acceleration due to the generated impact applied to the head body 5a decreases while propagating through the head body 5a, the tube body 5b, and the housing 3. The acceleration sensor 6 detects the thus decreased amount of change in acceleration. Therefore, the impact estimation unit 14 estimates the magnitude of the generated impact at the location where the generated impact such as the head body 5a is applied, based on the amplitude of the change over time of the detected value of the acceleration detected by the acceleration sensor 6 and the attenuation rate. That is, the impact estimation unit 14 estimates the magnitude of the generated impact applied to the housing 3 or the suction tool 5 based on the detection results of the acceleration sensor 6 and the attachment / detachment sensor 8.

[0034] Note that the material properties to be used only need to be stored in the estimation device 10 in advance. The material properties are calculated by prior tests or the like. For example, the attenuation rate is calculated in advance by data analysis of stress, actual measurement of impact by tests, etc. In this case, a machine learning method may be used for the calculation.

[0035] The communication unit 15 is an interface for communicating with the mobile terminal 30. Note that the communication unit 15 may be able to communicate with the server device 40 via a network.

[0036] The mobile terminal 30 has a display 30a, which is a display means for displaying information as a display device. The mobile terminal 30 includes, as functions, a display control unit 31, an acquisition unit 32, a life calculation unit 33, a score calculation unit 34, and a comment generation unit 35.

[0037] The display control unit 31 causes the display 30a to display information. For example, the display control unit 31 causes the display 30a to display a dedicated user interface screen (hereinafter also referred to as a "UI screen").

[0038] The acquisition unit 32 acquires, from the estimation device 10, as information on the estimated and calculated results, information on the direction, position, and magnitude of the generated impact, information on the frequency of the generated impact in one cleaning, and information on the moving speed of the cleaner 1 in one cleaning. Note that the information on the moving speed of the cleaner 1 may be information on the time transition of the calculated moving speed.

[0039] The life calculation unit 33 calls the strength data of the material at the position of the generated impact based on the information on the position of the generated impact. The strength data of the material includes the fatigue strength and the endurance strength of the material. The fatigue strength is a model formula indicating the remaining life until the material breaks due to the accumulation of impacts. The endurance strength is a value indicating the magnitude of the impact that causes the material to break in one time. The endurance threshold value corresponding to the endurance strength is associated with the endurance strength. For example, the endurance threshold value is 70% of the endurance strength.

[0040] The life calculation unit 33 calculates the remaining life of the material at the position of the generated impact based on the position and magnitude of the generated impact. The life calculation unit 33 determines whether the magnitude of the generated impact is equal to or greater than the endurance threshold value.

[0041] The score calculation unit 34 calculates a score related to the handling of the cleaner 1 in the current cleaning based on at least the position, magnitude, and frequency of the generated impact. For example, a deduction factor is preset for the magnitude and frequency of the generated impact at the same position. The score calculation unit 34 calculates the score in a deduction method that reflects the deduction factor in one cleaning. Note that the score calculation unit 34 may further use the moving speed of the housing 3 in the calculation of the score. At this time, the moving speed of the housing 3 may be a deduction factor or an addition factor. The smaller the magnitude of the generated impact applied to the cleaner 1 and the lower the frequency, the higher the score related to the handling of the cleaner 1.

[0042] The comment generation unit 35 generates comments regarding the handling of the cleaner 1 in this cleaning, based at least on the position, magnitude, and frequency of the generated shock. For example, comment elements are set in advance for each of the position, magnitude, and frequency of the generated shock. The comment generation unit 35 extracts the comment elements regarding the position, magnitude, and frequency of the generated shock calculated or estimated in this cleaning, and combines the extracted comment elements to generate comments. Note that the comment generation unit 35 may use the score calculated by the score calculation unit 34 for comment generation. For example, when the score is lower than a threshold value, the comment generation unit 35 may generate a specific negative comment. Specifically, when the score is low and the number of generated shocks to the head body 5a is large, the comment generation unit 35 generates a comment such as "Please move the head body carefully."

[0043] The display control unit 31 causes the remaining life calculated by the life calculation unit 33, the score calculated by the score calculation unit 34, and the comment generated by the comment generation unit 35 to be displayed on the UI screen. Further, when it is determined that the magnitude of the generated shock is equal to or greater than the durability threshold value, the display control unit 31 may cause a warning indicating that there is a risk of breakage in one time to be displayed on the UI screen.

[0044] The server device 40 acquires information corresponding to the direction, position, magnitude, and frequency of the generated shock, and information on the moving speed of the cleaner 1 directly from the estimation device 10 or indirectly via the mobile terminal 30 from the estimation device 10. The server device 40 stores the acquired information in association with the model of the cleaner 1. For example, employees in the department that develops the cleaner 1 can access the server device 40. In this case, the employee may design the product based on the information stored in the server device 40.

[0045] Next, an example in which the estimation device 10 estimates a generated shock will be described with reference to FIGS. 3 to 8. FIG. 3 is a schematic diagram showing a first example of the impact generated on the vacuum cleaner in Embodiment 1. FIG. 4 is a diagram showing the acceleration detected by the acceleration sensor in Embodiment 1 according to the first example. FIG. 5 is a schematic diagram showing a second example of the impact generated on the vacuum cleaner in Embodiment 1. FIG. 6 is a diagram showing the acceleration detected by the acceleration sensor in Embodiment 1 according to the second example. FIG. 7 is a schematic diagram showing a third example of the impact generated on the vacuum cleaner in Embodiment 1. FIG. 8 is a diagram showing the acceleration detected by the acceleration sensor in Embodiment 1 according to the third example.

[0046] In the examples of FIGS. 3 to 8, among the directions detected by the acceleration sensor 6, the y direction coincides with the reference line. In FIGS. 4, 6, and 8, the time transitions of the accelerations detected by the acceleration sensor 6 are arranged in the order of the x direction, the y direction, and the z direction from the top.

[0047] As shown in FIG. 3, the first example is a case where the vacuum cleaner 1 drops onto the floor F with the handle portion 3c down at time t 1 . An impact is applied to the handle portion 3c from the external floor F.

[0048] As shown in FIG. 4, in the stable state time period Ts from time t 0 to time t 1 , the accelerations in each direction are substantially constant. After time t 1 , a temporal change in the detected value of the acceleration due to the impact occurs. Specifically, since the acceleration in the y direction in particular fluctuates with a positive value, the impact estimation unit 14 estimates that an impact has been applied from the direction of the handle portion 3c side of the housing 3. At this time, the impact estimation unit 14 takes into account the components in the x direction and the z direction in its estimation. In the vacuum cleaner 1, since only the handle portion 3c of the housing 3 exists on the side of the handle portion 3c, the impact estimation unit 14 estimates that the position of the generated impact is the handle portion 3c of the housing 3.

[0049] After that, the impact estimation unit 14 reads, as the material characteristics of the material between the acceleration sensor 6 and the handle part 3c, the material characteristics corresponding to the handle part 3c that are preset. The impact estimation unit 14 estimates the magnitude of the generated impact based on the amplitude of the change over time of the acceleration detected by the generated impact and the material characteristics. The amplitude of the change over time of the acceleration is the amplitude shown in the time course of the acceleration. Thus, in the first example, the impact estimation unit 14 can estimate the direction, position, and magnitude of the generated impact based on the detection result of the acceleration sensor 6 without using the detection result of the attachment / detachment sensor 8.

[0050] Next, as shown in FIG. 5, in the second example, a suction tool 5 is attached to the housing 3. The attachment / detachment sensor 8 detects that the pipe body 5b and the head body 5a are attached. The second example is a case where the head body 5a during cleaning collides with the wall W at time t 1 In this case, an impact is applied to the head body 5a.

[0051] As shown in FIG. 6, since the posture of the cleaner 1 is different from that in the first example, the detected value of the acceleration in the time zone Ts of the stable state is different from that in the first example shown in FIG. 4. Based on the detection results of the accelerations in the x-direction, y-direction, and z-direction at time t 1 the impact estimation unit 14 estimates that the impact was applied from the front direction, which is the side where the suction tool 5 is attached. Further, since the attachment / detachment sensor 8 has detected that the suction tool 5 is attached to the housing 3, the impact estimation unit 14 uses the detection result of the attachment / detachment sensor 8 to estimate the position of the generated impact as the suction tool 5, particularly the head body 5a at its tip portion.

[0052] After that, the impact estimation unit 14 reads the material characteristics in the case where the position of the generated impact is the head body 5a. The impact estimation unit 14 estimates the magnitude of the generated impact based on the amplitude of the change over time of the acceleration detected by the generated impact and the material characteristics.

[0053] Next, as shown in FIG. 7, in the third example, the suction tool 5 is not attached to the housing 3. The attachment / detachment sensor 8 detects that neither the pipe body 5b nor the head body 5a is attached. In this case, the cleaner 1 sucks the dust-containing air in the connection pipe portion 3b. The third example is at time t 1 when the connection pipe portion 3b being cleaned collides with the wall W. In this case, an impact is applied to the connection pipe portion 3b.

[0054] As shown in FIG. 8, since the posture of the cleaner 1 is the same as that in the second example, the detected value of the acceleration in the time zone Ts of the stable state is the same as that in the second example shown in FIG. 6. Based on the detection results of the accelerations in the x direction, y direction, and z direction at time t 1 , the impact estimation unit 14 estimates that an impact has been applied from the front direction, which is the side where the suction tool 5 is attached. Further, since the attachment / detachment sensor 8 has detected that the suction tool 5 is not attached to the housing 3, the impact estimation unit 14 uses the detection result of the attachment / detachment sensor 8 to estimate that the position where the impact has occurred is the connection pipe portion 3b.

[0055] Thereafter, the impact estimation unit 14 reads the material characteristics when the position where the impact has occurred is the connection pipe portion 3b. The impact estimation unit 14 estimates the magnitude of the generated impact based on the amplitude of the change over time of the acceleration detected by the generated impact and the material characteristics.

[0056] Next, an example of the UI screen will be described with reference to FIG. 9. FIG. 9 is a diagram of a mobile terminal on which the UI screen of the cleaning system in Embodiment 1 is displayed.

[0057] FIG. 9 is a UI screen displayed on the mobile terminal 30 after a certain cleaning is completed. On the UI screen, a score Z1 regarding the handling method of the cleaner 1 calculated by the score calculation unit 34 is displayed. On the UI screen, a graph Z2 showing the transition of the score is displayed. For example, the vertical axis of the graph Z2 is the score. The horizontal axis of the graph Z2 is the date.

[0058] On the UI screen, a comment Z3 regarding the operation method of the cleaner 1 generated by the comment generation unit 35 is displayed.

[0059] On the UI screen, the remaining life Z4 of the cleaner 1 calculated by the remaining life calculation unit 33 is displayed. In this example, the remaining life is the remaining life in the part with the shortest calculated remaining life among the respective parts of the cleaner 1. Note that for the remaining life Z4, the remaining life regarding each part may be displayed respectively, or only the remaining life of the head body 5a may be displayed.

[0060] Note that when it is determined that the magnitude of the generated impact is equal to or greater than the durability threshold value, a warning indicating that there is a risk of breakage in one time may be further displayed on the UI screen.

[0061] Next, an example of the operation performed by the estimation device 10 will be described with reference to FIG. 10. FIG. 10 is a flowchart showing an example of the operation performed by the estimation device of the cleaning system in the first embodiment.

[0062] The flowchart of FIG. 10 starts, for example, when the operation of the electric blower 2a starts. While the operation of this flowchart is being performed, the acceleration sensor 6 and the attachment / detachment sensor 8 transmit the detection results to the estimation device 10 at a specified cycle. Also, the speed calculation unit 13 calculates the speed of the housing 3.

[0063] In step S01, the acquisition unit 11 acquires the detection result of the acceleration sensor 6 and the detection result of the attachment / detachment sensor 8.

[0064] Thereafter, in step S02, the attitude detection unit 12 detects the attitude of the housing 3 in the stable state based on the detection result of the acceleration sensor 6.

[0065] Thereafter, in step S03, the impact estimation unit 14 determines whether or not a generated impact has been detected. For example, when the time change of the acceleration detected by the acceleration sensor 6 shows a characteristic waveform, a generated impact is detected.

[0066] In step S03, if a generated impact is detected, the operation in step S04 is performed. In step S04, the impact estimation unit 14 estimates the direction of the generated impact based on the detection result of the acceleration sensor 6.

[0067] Thereafter, in step S05, the impact estimation unit 14 estimates the position of the generated impact using the direction of the generated impact and the detection result of the attachment / detachment sensor 8.

[0068] Thereafter, in step S06, the impact estimation unit 14 estimates the magnitude of the generated impact based on the position of the generated impact, the material characteristics, and the detection result of the acceleration sensor 6.

[0069] If the generated impact is not detected in step S03, or if the operation in step S06 is performed, the operation in step S07 is performed. In step S07, the communication unit 15 determines whether the operation of the electric blower 2a has stopped.

[0070] If, in step S07, the operation of the electric blower 2a has not stopped, the operations after step S02 are performed.

[0071] If, in step S07, the operation of the electric blower 2a has stopped, the operation in step S08 is performed. In step S08, the communication unit 15 transmits various types of information calculated and estimated during this cleaning to the mobile terminal 30.

[0072] Thereafter, the operation of the flowchart ends.

[0073] Next, an example of the operation performed by the mobile terminal 30 will be described with reference to FIG. 11. FIG. 11 is a flowchart showing an example of the operation performed by the mobile terminal of the cleaning system in Embodiment 1.

[0074] For example, the flowchart in FIG. 11 starts when various types of information calculated and estimated during cleaning are received from the estimation device 10. In step S11, the remaining life calculation unit 33 calculates the remaining life.

[0075] After that, in step S12, the score calculation unit 34 calculates a score related to the way of handling the vacuum cleaner 1.

[0076] After that, in step S13, the comment generation unit 35 generates a comment related to the way of handling the vacuum cleaner 1.

[0077] After that, in step S14, the mobile terminal 30 stores and accumulates the information calculated or generated in steps S11 to S13.

[0078] After that, in step S15, the display control unit 31 determines whether an operation to display the UI screen is performed on the mobile terminal 30. If the operation to display the UI screen is not performed in step S15, the operation of the flowchart ends.

[0079] If the operation to display the UI screen is performed in step S15, the operation in step S16 is performed. In step S16, the display control unit 31 causes the display 30a to display a UI screen including the information calculated or generated in steps S11 to S13.

[0080] After that, the operation of the flowchart ends.

[0081] According to the first embodiment described above, the vacuum cleaner 1 includes a suction unit 2, a housing 3, a suction tool 5, an acceleration sensor 6, and an estimation device 10. The estimation device 10 estimates the position of the generated impact based on the detection result of the acceleration sensor 6. Therefore, the vacuum cleaner 1 can detect an external impact that may lead to an abnormality such as damage.

[0082] Further, the cleaning system 20 includes a cleaner 1, an estimation device 10, and a mobile terminal 30 which is a display device. The cleaner 1 includes a suction means 2, a housing 3, a suction tool 5, and an acceleration sensor 6. The estimation device 10 detects an external impact that may lead to an abnormality such as damage. Based on the result estimated by the estimation device 10, the mobile terminal 30 calculates and displays a score regarding how to handle the cleaner 1 on a display means. The user can objectively know how to handle their own cleaner 1. In particular, since the result of how to handle it is displayed as a score, a gamification element can be added to the cleaning operation. As a result, the user can spontaneously have an awareness of handling the cleaner 1 carefully. And it is possible to prevent an abnormality such as the cleaner 1 being damaged. Also, even if damage occurs to the head body 5a or the like due to an impact, the user can objectively know that the damage occurred due to their own handling. As a result, it is possible to prevent the user from misunderstanding that the damage is due to a defect in the product. And it is possible to prevent the user's satisfaction from decreasing.

[0083] Also, the mobile terminal 30 which is a display device generates and displays a comment regarding how to handle the cleaner 1. For this reason, more specific advice regarding how to improve how to handle the cleaner 1 can be presented to the user.

[0084] The cleaning system 20 also includes a cleaner 1, an estimation device 10, and a server device 40. The cleaner 1 includes a suction means 2, a housing 3, a suction tool 5, and an acceleration sensor 6. For example, the estimation device 10 may be provided at a location separate from the cleaner 1, such as inside the server device 40. The estimation device 10 detects an external impact that may lead to an abnormality such as damage. Conventionally, it has not been possible to collect data such as the magnitude and frequency of the impact generated in such an actually used case. This is partly because the development of information technologies such as IoT was immature in the past. On the other hand, in the present embodiment, the server device 40 accumulates information indicating the result estimated by the estimation device 10. Therefore, employees of a development company that designs the structure of the cleaner 1, etc., can collect data on the impact generated during actual use. As a result, the employee can consider the physical load applied to the cleaner 1 in the actual use environment in the development of the next-generation product, etc. And the employee can perform a more appropriate strength design in the development, etc. By performing an appropriate strength design, it is possible to suppress the setting of the wall thickness, etc., for ensuring excessive strength. As a result, it is possible to suppress an increase in the cost or an increase in the weight of the next-generation product.

[0085] The cleaner 1 also includes a detachment sensor 8. The estimation device 10 estimates the position of the generated impact based on the detection result of the acceleration sensor 6 and the detection result of the detachment sensor 8. Therefore, it is possible to estimate the position of the generated impact in more detail, such as whether an impact was particularly applied to the suction tool 5.

[0086] The estimation device 10 also estimates the magnitude of the generated impact applied to the housing 3 or the suction tool 5 based on the detection result of the acceleration sensor 6 and the detection result of the detachment sensor 8. Therefore, it is possible to estimate the extent of damage caused to the cleaner 1 by the generated impact.

[0087] In addition, the mobile terminal 30, which is a display device, calculates and displays the remaining life of the cleaner 1 based on the position and magnitude of the generated impact. Note that, for example, in the case of a stick cleaner, since the magnitude of the impact generated by handling such as cleaning along the wall varies greatly depending on each case, the physical life of the product varies greatly in each case. For example, there is a possibility that the product may be damaged in a significantly shorter period than the assumed life at the time of design. Since the remaining life can be known as in the present embodiment, the user can take preventive actions such as replacing the cleaner 1 before it is damaged, considering the remaining life.

[0088] In addition, the estimation device 10 extracts material characteristics based on the detection result of the attachment / detachment sensor 8 and the position of the generated impact. The estimation device 10 estimates the magnitude of the generated impact based on the material characteristics and the amplitude of the change over time of the acceleration detected by the acceleration sensor 6. Since the material characteristics are considered in this way, the estimation device 10 can more accurately estimate the actual magnitude of the impact applied to the housing 3 or the suction tool 5.

[0089] In addition, the estimation device 10 estimates, based on the detection result of the acceleration sensor 6, the direction in which the generated impact is applied to the acceleration sensor 6 as the direction of the generated impact. The estimation device 10 estimates the position of the generated impact based on the detection result of the attachment / detachment sensor 8 and the direction of the generated impact. Therefore, the position of the generated impact can be estimated more accurately.

[0090] In addition, the suction tool 5 has a head body 5a and a tube body 5b. The attachment / detachment sensor 8 can detect whether the tube body 5b is attached to the housing 3 and whether the head body 5a is attached to the tube body 5b. The estimation device 10 estimates the position of the generated impact based on such detection results. Therefore, for example, the estimation device 10 can estimate whether the generated impact was applied to either the head body 5a or the tube body 5b of the suction tool 5. As a result, the position of the generated impact can be estimated more accurately.

[0091] Further, the housing 3 has the shape of a stick-type cleaner. Therefore, the estimation device 10 can estimate that an impact has been applied to the handle portion 3c or the like of the stick-type cleaner.

[0092] Note that the suction tool 5 may be any type of attachment. For example, the suction tool 5 may be an attachment for cleaning gaps that has a suction port 5c and is narrower than the head body 5a. Even in this case, each device of the cleaner 1 treats the attachment as the suction tool 5 and performs various controls. Also, the attachment / detachment sensor 8 may detect the type of the attachment. Specifically, for example, the attachment / detachment sensor 8 can detect whether or not the attachment is attached to the housing 3. In this case, information regarding the generated impact may be stored in the server device 40 for each attachment. Therefore, this information can be useful in product development regarding the attachment.

[0093] Note that the function of the estimation device 10 may be provided in a device separate from the cleaner 1, such as the mobile terminal 30 or the server device 40. In this case, the detection results of the acceleration sensor 6 and the attachment / detachment sensor 8 are transmitted to the device in which the function of the estimation device 10 is provided.

[0094] Embodiment 2. FIG. 12 is a schematic diagram showing a fourth example of the generated impact applied to the cleaner in Embodiment 2. FIG. 13 is a diagram showing the accelerations detected by the acceleration sensor and the head acceleration sensor of the cleaning system in Embodiment 2 according to the fourth example. FIG. 14 is a schematic diagram showing a fifth example of the generated impact applied to the cleaner in Embodiment 2. FIG. 15 is a diagram showing the accelerations detected by the acceleration sensor and the head acceleration sensor of the cleaning system in Embodiment 2 according to the fifth example. Note that the same reference numerals are given to the same or corresponding parts as those in Embodiment 1, and the description of those parts is omitted.

[0095] In the second embodiment, the vacuum cleaner 1 is further provided with a head acceleration sensor 50. The head acceleration sensor 50 can detect accelerations in three axial directions, namely the x-direction, the y-direction, and the z-direction. The head acceleration sensor 50 transmits a signal indicating the detection result of the acceleration to the estimation device 10. In the following fourth and fifth examples, in both cases, the head body 5a is attached to the housing 3 via the pipe body 5b. The impact estimation unit 14 further uses the detection result of the head acceleration sensor 50 when performing an estimation regarding the generated impact.

[0096] In the examples of FIGS. 12 to 15, among the directions detected by the acceleration sensor 6, the y-direction coincides with the reference line. In the examples of FIGS. 12 to 15, among the directions detected by the head acceleration sensor 50, the x-direction faces the opposite direction to the traveling direction during the cleaning of the head body 5a.

[0097] As shown in FIG. 12, the fourth example is a case where the head body 5a being cleaned at time t 2 collides with the wall W as in the second example. In this case, an impact is applied to the head body 5a. The acceleration sensor 6 and the head acceleration sensor 50 detect the change in acceleration due to the generated impact.

[0098] In FIGS. 13 and 15, in the left column A, the time transitions of the accelerations detected by the acceleration sensor 6 are arranged in the order of the x-direction, the y-direction, and the z-direction from the upper row. In FIGS. 13 and 15, in the right column B, the time transitions of the accelerations detected by the head acceleration sensor 50 are arranged in the order of the x-direction, the y-direction, and the z-direction from the upper row.

[0099] As shown in FIG. 13, based on the detection results of the accelerations in the x-direction, the y-direction, and the z-direction at time t 3 when the acceleration sensor 6 detects a change in amplitude, the impact estimation unit 14 estimates that an impact has been applied from the front direction, which is the side where the suction tool 5 is attached.

[0100] Furthermore, the impact estimation unit 14 compares the detection result of the acceleration sensor 6 with the detection result of the head acceleration sensor 50 to more precisely estimate the position of the generated impact, i.e., which part of the suction tool 5 the generated impact was applied to. Specifically, the impact estimation unit 14 determines the length T 2 from the reference time t 3 to the time t 1 when the acceleration sensor 6 detects a change in amplitude. The impact estimation unit 14 calculates the length T 2 from the reference time t 4 to the time t 2 when the head acceleration sensor 50 detects a change in amplitude. The impact estimation unit 14 compares the lengths of T 1 and T 2 and, since T 1 is shorter than T 2 , estimates that the impact propagated to the head acceleration sensor 50 before reaching the acceleration sensor 6, i.e., the generated impact was applied to the head body 5a. Note that the impact estimation unit 14 may estimate which part of the suction tool 5 the generated impact was applied to by comparing the time when the acceleration sensor 6 detected the generated impact with the time when the head acceleration sensor 50 detected the generated impact using a similar method.

[0101] Next, as shown in FIG. 14, in the fifth example, at time t 2 the cleaning tube body 5b collides with a protrusion on the wall W or the like. In this case, an impact is applied to the tube body 5b. The acceleration sensor 6 and the head acceleration sensor 50 detect the change in acceleration due to the generated impact.

[0102] As shown in FIG. 15, based on the detection results of the acceleration sensor 6 detecting the accelerations in the x, y, and z directions at the time t 3 when the acceleration sensor 6 detects a change in amplitude, the impact estimation unit 14 estimates that the impact was applied from the front direction, which is the side where the suction tool 5 is attached.

[0103] Furthermore, the impact estimation unit 14 determines the length T 2 from the reference time t 3Length T up to 1 is calculated. The impact estimation unit 14 is based on the reference time t 2 to the time t when the head acceleration sensor 50 detects a change in amplitude 4 Length T up to 2 is calculated. The impact estimation unit 14 is T 1 and T 2 and compares the lengths, and T 1 and T 2 Since the lengths are generally the same, it is estimated that the generated impact was applied to the pipe body 5b at the intermediate position between the acceleration sensor 6 and the head acceleration sensor 50.

[0104] According to the second embodiment described above, the vacuum cleaner 1 further includes a head acceleration sensor 50. The estimation device 10 estimates the position of the generated impact based at least on the detection result of the acceleration sensor 6 and the detection result of the head acceleration sensor 50. For this reason, the estimation device 10 can estimate a more detailed position of the generated impact. For example, when an impact is applied to the pipe body 5b, it is difficult to estimate whether the impact was applied to the head body 5a or the pipe body 5b only from the detection result of the acceleration sensor 6. At this time, by further using the detection result of the head acceleration sensor 50, the estimation device 10 can accurately estimate that an impact was applied to the pipe body 5b.

[0105] Note that the impact estimation unit 14 may further estimate in more detail the position of the generated impact, that is, at which position of the pipe body 5b the generated impact was applied, by comparing the detection result of the acceleration sensor 6 and the detection result of the head acceleration sensor 50.

[0106] Embodiment 3. FIG. 16 is a perspective view of the vacuum cleaner according to the third embodiment. Note that the same or corresponding parts as those in the first or second embodiment are denoted by the same reference numerals, and the description of those parts is omitted.

[0107] In Embodiment 3, the vacuum cleaner 1 is a canister-type cleaner. In this case, the suction means 2 is provided inside the main body housing 60 instead of inside the housing 3. The housing 3 to which the suction tool 5 is attached is connected to the main body housing 60 by a hose 61. An operating device 4 is provided on the housing 3. A pipe body 5b is attached to the connecting pipe portion 3b of the housing 3. In this state, an air flow path for suction is formed by the head body 5a, the pipe body 5b, the housing 3, the hose 61, and the main body housing 60.

[0108] The acceleration sensor 6 is provided inside the housing 3. In FIG. 16, the head acceleration sensor 50 is provided on the head body 5a, but the head acceleration sensor 50 may not be provided on the vacuum cleaner 1. Each function of the estimation device 10 performs the same operation as in Embodiment 1 or 2.

[0109] In Embodiment 3, in the same manner as in Embodiment 1 or 2, the estimation device 10 can estimate the direction, position, and magnitude of the generated impact applied to the housing 3 or the suction tool 5.

[0110] According to Embodiment 3 described above, even in a canister-type cleaner, it is possible to estimate that an impact has been applied to the suction tool 5 such as the head body 5a and the handle portion which is the housing 3.

[0111] Next, an example of the hardware constituting the estimation device 10 will be described with reference to FIG. 17. FIG. 17 is a hardware configuration diagram of the estimation device of the cleaning system in Embodiments 1 to 3.

[0112] Each function of the estimation device 10 can be realized by a processing circuit. For example, the processing circuit includes at least one processor 100a and at least one memory 100b. For example, the processing circuit includes at least one dedicated hardware 200.

[0113] When the processing circuit includes at least one processor 100a and at least one memory 100b, each function of the estimation device 10 is realized by software, firmware, or a combination of software and firmware. At least one of the software and the firmware is described as a program. At least one of the software and the firmware is stored in at least one memory 100b. The at least one processor 100a realizes each function of the estimation device 10 by reading and executing the program stored in the at least one memory 100b. The at least one processor 100a is also referred to as a central processing unit, a processing unit, an arithmetic unit, a microprocessor, a microcomputer, or a DSP. For example, the at least one memory 100b is a non-volatile or volatile semiconductor memory such as a RAM, a ROM, a flash memory, an EPROM, or an EEPROM, a magnetic disk, a flexible disk, an optical disk, a compact disk, a mini disk, or a DVD.

[0114] When the processing circuit includes at least one dedicated hardware 200, the processing circuit is realized by, for example, a single circuit, a composite circuit, a programmed processor, a parallel-programmed processor, an ASIC, an FPGA, or a combination thereof. For example, each function of the estimation device 10 is realized by the processing circuit respectively. For example, each function of the estimation device 10 is realized by the processing circuit collectively.

[0115] For each function of the estimation device 10, a part may be realized by the dedicated hardware 200 and the other part may be realized by software or firmware. For example, the function of the communication unit 15 may be realized by a processing circuit as the dedicated hardware 200, and the functions other than the function of the communication unit 15 may be realized by the at least one processor 100a reading and executing the program stored in the at least one memory 100b.

[0116] In this way, the processing circuit realizes each function of the estimation device 10 by hardware 200, software, firmware, or a combination thereof.

[0117] Although not shown, each function of the control device 7, the mobile terminal 30, and the server device 40 is also realized by a processing circuit equivalent to the processing circuit that realizes each function of the estimation device 10.

[0118] Further, at least a part of the functions of the estimation device 10, the mobile terminal 30, and the server device 40 may be realized on a cloud server. In this case, the processing circuit is composed of a plurality of sub-circuits. The plurality of sub-processing circuits are respectively provided in a plurality of devices constituting the cloud server. The plurality of devices constituting the cloud server may be provided in different buildings respectively. In this case, the functions of the estimation device 10 realized on the cloud server acquire the detection results by communicating with the acceleration sensor 6 and the head acceleration sensor 50 through the network.

[0119] Summarizing the above description, the possible configurations of the technology according to the present disclosure include the following configurations shown as appendices. (Appendix 1) Suction means for generating an airflow for sucking in dust, A suction tool having a suction port, A housing to which the suction tool is detachably attached and which forms an air passage through which the airflow passes between the suction means and the suction tool, An acceleration sensor provided on the housing and capable of detecting acceleration in three axial directions, An estimation device for estimating the position of an impact generated outside the housing or the suction tool based on the detection result of the acceleration sensor, A vacuum cleaner comprising the same. (Appendix 2) A detachment sensor for detecting whether or not the suction tool is attached to the housing, Further comprising, The estimation device estimates the position of the generated impact based on the detection result of the acceleration sensor and the detection result of the detachment sensor. The vacuum cleaner according to Appendix 1. (Appendix 3) The cleaning device according to appended note 2, wherein the estimation device estimates the magnitude of the generated impact applied to the housing or the suction tool based on the detection results of the acceleration sensor and the detection results of the attachment / detachment sensor. (Appended note 4) The cleaning device according to appended note 3, wherein the estimation device extracts the material characteristics of the material existing between the position of the generated impact and the acceleration sensor based on the detection result of the attachment / detachment sensor and the position of the generated impact, and estimates the magnitude of the generated impact applied to the housing or the suction tool based on the amplitude of the change over time of the acceleration detected by the acceleration sensor due to the generated impact and the material characteristics. (Appended note 5) The cleaning device according to any one of appended notes 2 to 4, wherein the estimation device estimates the direction in which the generated impact is applied to the acceleration sensor based on the detection result of the acceleration sensor, and estimates the position of the generated impact based on the detection result of the attachment / detachment sensor and the direction in which the generated impact is applied. (Appended note 6) The suction tool includes a head body having the suction port, a tubular body that is detachably attached to the head body at one end and detachably attached to the housing at the other end, and connects the head body and the housing, and has The cleaning device according to any one of appended notes 2 to 5, wherein the attachment / detachment sensor can detect whether the housing and the tubular body are attached, and whether the tubular body and the head body are attached. (Appended note 7) a head acceleration sensor provided on the head body and capable of detecting acceleration in three axial directions, and further includes The cleaning device according to appended note 6, wherein the estimation device estimates the position of the generated impact applied to the outside of the suction tool based on the detection results of the acceleration sensor and the head acceleration sensor. (Appended note 8) The cleaning device according to any one of appended notes 1 to 7, wherein the housing has the shape of a stick-type cleaner and houses the suction means therein. (Appendix 9) A vacuum cleaner having a suction means for generating an air flow for sucking dust, a suction tool having a suction port, a housing to which the suction tool is detachably attached and which forms an air passage through which the air flow passes between the suction means and the suction tool, an acceleration sensor provided on the housing and capable of detecting acceleration in three axial directions, an estimation device for estimating the position of an impact generated outside the housing or the suction tool based on the detection result of the acceleration sensor, a display device for calculating and displaying a score regarding how to handle the vacuum cleaner based on the detection result of the acceleration sensor and the result estimated by the estimation device. A cleaning system comprising the above. (Appendix 10) The cleaning system according to Appendix 9, wherein the display device generates and displays a comment regarding how to handle the vacuum cleaner based on the detection result of the acceleration sensor and the result estimated by the estimation device. (Appendix 11) a detachment sensor for detecting whether or not the suction tool is attached to the housing, further comprising, wherein the estimation device estimates the magnitude of the impact generated on the housing or the suction tool based on the detection result of the acceleration sensor and the detection result of the detachment sensor, The cleaning system according to Appendix 9 or Appendix 10, wherein the display device calculates and displays the lifespan of the vacuum cleaner based on the position and magnitude of the impact. (Appendix 12) A vacuum cleaner having a suction means for generating an air flow for sucking dust, a suction tool having a suction port, a housing to which the suction tool is detachably attached and which forms an air passage through which the air flow passes between the suction means and the suction tool, an acceleration sensor provided on the housing and capable of detecting acceleration in three axial directions, Based on the detection result of the acceleration sensor, calculate the moving speed of the cleaner, estimate the position of the generated impact applied to the outside of the housing or the suction tool, and transmit information including the moving speed of the cleaner and the position of the generated impact; an estimation device; A server device that accumulates information including the moving speed of the cleaner and the position of the generated impact transmitted from the estimation device; A cleaning system comprising the above.

Explanation of Signs

[0120] 1 Cleaner, 2 Suction means, 2a Electric blower, 2b Dust collector, 3 Housing, 3a Storage section, 3b Connection pipe section, 3c Handle section, 3d Exhaust port, 4 Operating device, 5 Suction tool, 5a Head body, 5b Pipe body, 5c Suction port, 5d Air duct section, 5e Brush, 5f Air duct section, 5g First connection section, 5h Second connection section, 6 Acceleration sensor, 7 Control device, 8 Detachment sensor, 10 Estimation device, 11 Acquisition section, 12 Posture detection section, 13 Speed calculation section, 14 Impact estimation section, 15 Communication section, 20 Cleaning system, 30 Portable terminal, 30a Display, 31 Display control section, 32 Acquisition section, 33 Life calculation section, 34 Score calculation section, 35 Comment generation section, 40 Server device, 50 Head acceleration sensor, 60 Main body housing, 61 Hose, 100a Processor, 100b Memory, 200 Hardware, F Floor, W Wall

Claims

1. A suction means for generating an air flow for sucking in dust, A suction tool having a suction port, A housing to which the suction tool is detachably attached and which forms an air passage through which the air flow passes between the suction means and the suction tool, An acceleration sensor provided on the housing and capable of detecting acceleration in three axial directions, An estimation device for estimating the position of an impact generated outside the housing or the suction tool based on the detection result of the acceleration sensor, A vacuum cleaner comprising the above.

2. A detachment sensor for detecting whether or not the suction tool is attached to the housing, Further comprising, The vacuum cleaner according to claim 1, wherein the estimation device estimates the position of the generated impact based on the detection result of the acceleration sensor and the detection result of the detachment sensor.

3. The vacuum cleaner according to claim 2, wherein the estimation device estimates the magnitude of the generated impact applied to the housing or the suction tool based on the detection result of the acceleration sensor and the detection result of the detachment sensor.

4. The estimation device extracts the material characteristics of the material existing between the position of the generated impact and the acceleration sensor based on the detection result of the detachment sensor and the position of the generated impact, and based on the amplitude of the change over time of the acceleration detected by the acceleration sensor due to the generated impact and the material characteristics, estimates the magnitude of the generated impact applied to the housing or the suction tool. The vacuum cleaner according to claim 3.

5. The estimation device estimates the direction in which the generated impact is applied to the acceleration sensor based on the detection result of the acceleration sensor, and estimates the position of the generated impact based on the detection result of the detachment sensor and the direction in which the generated impact is applied. The vacuum cleaner according to any one of claims 2 to 4.

6. The suction tool is, A head body having the suction port, A tubular body that is detachably attached to the head body at one end and detachably attached to the housing at the other end, and that connects the head body and the housing, Having, The vacuum cleaner according to any one of claims 2 to 4, wherein the detachment sensor is capable of detecting whether or not the housing and the tubular body are attached, and whether or not the tubular body and the head body are attached.

7. A head acceleration sensor provided on the head body and capable of detecting acceleration in three axial directions, Further comprising, The cleaning device according to claim 6, wherein the estimation device estimates the position of the generated impact applied to the outside of the suction tool based on the detection result of the acceleration sensor and the detection result of the head acceleration sensor.

8. The cleaning device according to any one of claims 1 to 4, wherein the housing has a shape of a stick-type cleaner and houses the suction means therein.

9. A cleaning device comprising: suction means for generating an air flow for sucking dust; a suction tool having a suction port; a housing to which the suction tool is detachably attached and which forms an air passage through which the air flow passes between the suction means and the suction tool. An acceleration sensor provided in the housing and capable of detecting acceleration in three axial directions. An estimation device that estimates the position of a generated impact applied to the outside of the housing or the suction tool based on the detection result of the acceleration sensor. A display device that calculates and displays a score regarding how to handle the cleaning device based on the detection result of the acceleration sensor and the result estimated by the estimation device. A cleaning system comprising the above.

10. The cleaning system according to claim 9, wherein the display device generates and displays a comment regarding how to handle the cleaning device based on the detection result of the acceleration sensor and the result estimated by the estimation device.

11. A detachment sensor that detects whether or not the suction tool is attached to the housing. further comprising The estimation device estimates the magnitude of the generated impact applied to the housing or the suction tool based on the detection result of the acceleration sensor and the detection result of the detachment sensor. The cleaning system according to claim 9 or claim 10, wherein the display device calculates and displays the lifespan of the cleaning device based on the position and magnitude of the generated impact.

12. A cleaning device comprising: suction means for generating an air flow for sucking dust; a suction tool having a suction port; a housing to which the suction tool is detachably attached and which forms an air passage through which the air flow passes between the suction means and the suction tool. An acceleration sensor provided in the housing and capable of detecting acceleration in three axial directions. An estimation device that calculates the moving speed of the cleaning device based on the detection result of the acceleration sensor, estimates the position of a generated impact applied to the outside of the housing or the suction tool, and transmits information including the moving speed of the cleaning device and the position of the generated impact. A server device that stores the information including the moving speed of the cleaning device and the position of the generated impact transmitted from the estimation device. A cleaning system comprising...

Citation Information

Patent Citations

  • Surface cleaning apparatus

    JP2021074544A