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- Nachgewiesen in: USPTO Patent Grants
- Sprachen: English
- Patent Number: 9,335,767
- Publication Date: May 10, 2016
- Appl. No: 13/590720
- Application Filed: August 21, 2012
- Assignees: SAMSUNG ELECTRONICS CO., LTD. (Suwon-si, KR)
- Claim: 1. A control method of a robot cleaner which is provided with a plurality of driving wheel assemblies each of which includes a driving wheel and a gear assembly to transmit driving force to the driving wheel and which rotates due to displacement of the driving wheel, the control method comprising: for the driving wheel included in each respective driving wheel assembly, detecting a displacement of the driving wheel with respect to a reference position by sensing a distance between a sensor provided on the respective driving wheel assembly and a sensed body provided on the gear assembly included in the respective driving wheel assembly so that the sensed body thereby rotates with the rotation of the gear assembly included in the respective driving wheel assembly; judging, by a controller, whether or not the detected displacement is within a predetermined reference range; and changing a travelling path of the robot cleaner, upon judging by said judging that the detected displacement is not within the predetermined reference range.
- Claim: 2. The control method according to claim 1 , wherein the sensed body on each respective driving wheel assembly is the driving wheel on the respective driving wheel assembly.
- Claim: 3. The control method according to claim 1 , wherein said changing comprises changing the travelling path of the main body so that the detected displacement is within the predetermined reference range, upon judging by said judging that the detected displacement is not within the predetermined reference range.
- Claim: 4. The control method according to claim 1 , wherein said changing comprises: judging that the driving wheel is lifted, when the detected displacement exceeds an upper threshold value of the predetermined reference range; and judging that the driving wheel is jammed, when the detected displacement does not reach a lower threshold value of the predetermined reference range.
- Claim: 5. The control method according to claim 1 , wherein the sensed distance is converted into a standardized parameter.
- Claim: 6. The control method according to claim 5 , wherein the standardized parameter is voltage, and the predetermined reference range is a range of voltage.
- Claim: 7. A control method of a robot cleaner which is provided with a main body, and a plurality of driving wheel assemblies each of which includes a driving wheel to drive the main body, the control method comprising: for the driving wheel included in each respective driving wheel assembly, detecting a displacement of the driving wheel with respect to a reference position by sensing a position of a sensed body on the respective driving wheel assembly by a sensor included in the respective driving wheel assembly; judging, by a controller, whether or not the detected displacement is within a predetermined reference range; and changing a travelling path of the main body, upon judging by said judging that the detected displacement is not within the predetermined reference range, wherein each respective driving wheel assembly further includes a driving motor to drive the driving wheel included in the respective driving wheel assembly, and the sensor included in each respective driving wheel assembly senses a rotating angle of the sensed body on the respective driving wheel assembly about a rotation shaft of the driving motor included in the respective driving wheel assembly, to thereby detect the displacement of the driving wheel included in the respective driving wheel assembly.
- Claim: 8. A robot cleaner comprising: plurality of driving wheel assemblies, each respective driving wheel assembly of the plurality of driving wheel assemblies including: a driving wheel, a gear assembly to transmit driving force to the driving wheel included in the respective driving wheel assembly to thereby drive the robot cleaner, and which rotates due to displacement of the driving wheel included in the respective driving wheel assembly, a sensed body provided on the gear assembly included in the respective driving, wheel assembly so that the sensed body rotates with the rotation of the gear assembly included in the respective driving wheel assembly, and a sensor to detect a displacement of the driving wheel included in the respective driving wheel assembly with respect to a reference position by sensing a distance between the sensor and the sensed body provided on the gear assembly included in the respective driving wheel assembly; and at least one controller to judge whether or not the displacement detected by a respective sensor included in a respective driving wheel assembly is within a predetermined reference range, and to change a travelling path of the robot cleaner, upon judging by the at least one controller that the detected displacement is not within the predetermined reference range.
- Claim: 9. The robot cleaner according to claim 8 , wherein the at least one controller changes the travelling path of the robot cleaner so that the detected displacement is within the reference range, upon judging by the at least one controller that the detected displacement is not within the predetermined reference range.
- Claim: 10. The robot cleaner according to claim 9 , wherein, for the driving wheel included in each respective driving wheel assembly, the at least one controller judges that the driving wheel is lifted, when the detected displacement of the driving wheel exceeds an upper threshold value of the predetermined reference range, and judges that the driving wheel is jammed, when the detected displacement of the driving wheel does not reach a lower threshold value of the predetermined reference range.
- Claim: 11. The robot cleaner according to claim 10 , wherein the sensed body provided on each respective driving wheel assembly is the driving wheel included in the respective driving wheel assembly.
- Claim: 12. The robot cleaner according to claim 9 , wherein: in each respective driving wheel assembly, the sensed body provided on the gear assembly included in the respective driving wheel assembly protrudes from one side surface of the gear assembly included in the respective driving wheel assembly.
- Claim: 13. The robot cleaner according to claim 12 , wherein each respective driving wheel assembly includes a motor generating the driving force transmitted by the gear assembly included in the respective driving wheel assembly, and, for each respective driving wheel assembly of the plurality of driving wheel assemblies, the gear assembly included in the respective driving wheel assembly is connected to one side of a housing included in the respective driving wheel assembly so as to be rotatable about a rotation shaft of the driving motor included in the respective driving wheel assembly.
- Claim: 14. The robot cleaner according to claim 13 , wherein, for each respective driving wheel assembly of the plurality of driving wheel assemblies: a magnet is provided at one end of the sensed body provided on the gear assembly included in the respective driving wheel assembly; and the sensor included in the respective driving wheel assembly senses the distance between the sensor and the sensed body provided on the gear assembly included in the respective driving wheel assembly through magnetic interaction with the magnet.
- Claim: 15. The robot cleaner according to claim 13 , wherein, for each respective driving wheel assembly among the plurality of driving wheel assemblies: a guide slot to accommodate the sensed body provided on the gear assembly included in the respective driving wheel assembly and to guide the sensed body is provided at one side surface of the housing included in the respective driving wheel assembly; and the sensor included in the respective driving wheel assembly is fixed to the guide slot and senses the distance between the sensor and the sensed body provided on the gear assembly included in the respective driving wheel assembly.
- Claim: 16. The robot cleaner according to claim 8 , wherein, for the driving wheel included in each respective driving wheel assembly, the sensor converts the sensed distance into a standardized parameter.
- Claim: 17. The control method according to claim 16 , wherein the standardized parameter is voltage, and the predetermined reference range is a range of voltage.
- Claim: 18. A robot cleaner which is provided with a main body, and a plurality of driving wheel assemblies, each of which includes a driving wheel to drive the main body, the robot cleaner comprising: for the driving wheel included in each respective driving wheel assembly of the plurality of driving wheel assemblies, a sensor to detect a displacement of the driving wheel with respect to a reference position by sensing a sensed body provided on the respective driving wheel assembly; and a controller to judge whether or not the detected displacement is within a predetermined reference range, and to change a travelling path of the main body, upon judging by the controller that the detected displacement is not within the predetermined reference range, wherein each respective driving wheel assembly of the plurality of driving wheel assemblies comprises: a housing; and a driving motor connected to one side of the housing; and the sensor senses a rotating angle of the sensed body provided on the respective driving wheel assembly about a rotation shaft of the driving motor included in the respective driving wheel assembly, to thereby detect the displacement of the driving wheel included in the respective driving wheel assembly.
- Claim: 19. A robot cleaner comprising: a plurality of driving wheel assemblies, each of which comprises: a driving wheel, a driving motor to generate a driving force, a gear assembly to transmit the driving force generated by the driving motor included in the respective driving wheel assembly to the driving wheel included in the respective driving wheel assembly, and which rotates due to displacement of the driving wheel included in the respective driving wheel assembly, a sensed body provided on the gear assembly included in the respective driving wheel assembly so that the rotation of the gear assembly included in the respective driving wheel assembly causes rotation of the sensed body, and a sensor which detects displacement of the driving wheel included in the respective driving wheel assembly with respect to a reference position by sensing a distance between the sensed body provided on the gear assembly included in the respective driving wheel assembly and the sensor included in the respective driving wheel assembly.
- Claim: 20. The robot cleaner according to claim 19 , wherein, for each respective driving wheel assembly of the plurality of driving wheel assemblies, the sensed body provided on the gear assembly included in the respective driving wheel assembly protrudes from one side surface of the gear assembly included in the respective driving wheel assembly.
- Claim: 21. The robot cleaner according to claim 20 , wherein each respective driving wheel assembly of the plurality of driving wheel assemblies includes a housing, and, for each respective driving wheel assembly of the plurality of driving wheel assemblies: the housing included in the respective driving wheel assembly includes a guide part accommodating and guiding the sensed body provided on the gear assembly included in the respective driving wheel assembly; and the sensor included in the respective driving wheel assembly is fixed to the guide part included in the housing included in the respective driving wheel assembly.
- Claim: 22. A robot cleaner comprising: a driving wheel; a driving motor which generates rotary force to rotate the driving wheel; a gear assembly which transmits the rotary force generated by the driving motor to the driving wheel, and which is rotated by displacement of the driving wheel; a sensed body provided on the gear assembly so that the sensed body rotates with the rotation of the gear assembly; and a sensor to detect displacement of the driving wheel with respect to a reference position by sensing a distance between the sensor and the sensed body.
- Claim: 23. The robot cleaner according to claim 22 , further comprising: a controller to judge whether or not the detected displacement is within a predetermined reference range and, when the controller judges that the detected displacement is not within the predetermined range, to change a travelling path of the robot cleaner.
- Claim: 24. A robot cleaner comprising: a driving wheel; a motor which generates rotary force to rotate the driving wheel; a gear assembly which transmits the rotary force generated by the driving motor to the driving wheel, and which is rotated by displacement of the driving wheel; a sensor to detect a displacement of the driving wheel by detecting a rotation angle of the gear assembly or a rotation angle of the driving wheel.
- Claim: 25. The robot cleaner according to claim 24 , wherein the sensor is positioned at a center of rotation of the gear assembly.
- Claim: 26. The robot cleaner according to claim 24 , wherein the sensor detects the rotation angle of the gear assembly.
- Claim: 27. The robot cleaner according to claim 24 , wherein the sensor detects the rotation angle of the driving wheel.
- Patent References Cited: 6047244 April 2000 Rud, Jr. ; 7188000 March 2007 Chiappetta et al. ; 7275280 October 2007 Haegermarck ; 7441298 October 2008 Svendsen et al. ; 7581282 September 2009 Woo ; 8253368 August 2012 Landry et al. ; 8386081 February 2013 Landry et al. ; 8417383 April 2013 Ozick ; 8428778 April 2013 Landry et al. ; 8560119 October 2013 Lee et al. ; 8781626 July 2014 Landry et al. ; 2001/0008985 July 2001 Wada ; 2004/0211444 October 2004 Taylor ; 2004/0236468 November 2004 Taylor ; 2004/0244138 December 2004 Taylor ; 2005/0132522 June 2005 Im et al. ; 2006/0060216 March 2006 Woo ; 2006/0111814 May 2006 Hachitani et al. ; 2007/0016328 January 2007 Ziegler ; 2007/0233321 October 2007 Suzuki ; 2008/0065265 March 2008 Ozick et al. ; 2008/0282484 November 2008 Lai ; 2008/0282494 November 2008 Won et al. ; 2009/0071732 March 2009 Kim ; 2009/0254218 October 2009 Sandin ; 2010/0037418 February 2010 Hussey et al. ; 2010/0115716 May 2010 Landry et al. ; 2010/0324734 December 2010 Lee et al. ; 2013/0054022 February 2013 Jang ; 2013/0211589 August 2013 Landry et al. ; 1401289 March 2003 ; 1636491 July 2005 ; 102119092 July 2011 ; 1 931 010 June 2008 ; WO 2006/089307 August 2006 ; WO 2007/065034 June 2007 ; WO 2010/018530 February 2010
- Other References: European Search Report mailed Jan. 3, 2013 in corresponding European Application No. 12180676.4. cited by applicant ; Chinese Office Action issued Oct. 23, 2015 in Chinese Patent Application No. 201210295618.6. cited by applicant ; Office Action issued Jun. 6, 2014 in U.S. Appl. No. 13/557,707. cited by applicant ; Office Action issued Nov. 5, 2014 in U.S. Appl. No. 13/557,707. cited by applicant ; Office Action issued Jun. 2, 2015 in U.S. Appl. No. 13/557,707. cited by applicant ; Notice of Allowance issued Oct. 5, 2015, in U.S. Appl. No. 13/557,707. cited by applicant ; U.S. Appl. No. 13/557,707, filed Jul. 25, 2012. cited by applicant
- Assistant Examiner: Thomas, Ana
- Primary Examiner: Black, Thomas G
- Attorney, Agent or Firm: Staas & Halsey LLP
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