# US 2014/0195050 A1 · Cleaning robot and system utilizing the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0195050 A1 - Document ID: US20140195050A1 - Status: Published application - Kind: A1 - Application number: 13/796,500 - Filed: 2013-03-12 - Published: 2014-07-10 - Earliest claimed: 2013-01-05 - Assignees: Msi Computer (Shenzhen) Co., Ltd. - Applicants: Msi Computer (Shenzhen) Co., Ltd. - Inventors: Yi-Feng LIN; Hung-Chou CHEN; Shih-Che HUNG - Web page: https://patentgrep.com/patent/US20140195050A1 ## CPC - G05D 1/247: using signals provided by artificial sources external to the vehicle, e.g. navigation beacons - G05D 1/00: Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots (drive control systems specially adapted for autonomous road vehicles B60W60/00) - G05D 1/0234: {using optical markers or beacons (optical beacons per se G01S1/70)} - Y10S 901/01: Mobile robot - Y10S 901/09: Closed loop, sensor feedback controls arm movement - G05D: SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES - Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS ## Abstract A cleaning robot is disclosed. A first sensing unit generates a sensing signal to a transmittal line according to an external wireless signal. When the external wireless signal is sensed by the first sensing unit, a state of the transmittal line does not match with a pre-determined state. When the external wireless signal is not sensed by the first sensing unit, the state of the transmittal line matches with the pre-determined state. A control unit generates a movement signal when the state of the transmittal line matches with the pre-determined state. A plurality of wheels rotate according to the movement signal. A second sensing unit generates a second sensing signal according to the external environment of the cleaning robot. When the state of the transmittal line does not match with the pre-determined state, the control unit adjusts the movement signal according to the second sensing signal. ## Claims ### Claim 1 A cleaning robot, comprising: a first sensing unit generating a sensing signal to a transmittal line according to an external wireless signal, wherein when the external wireless signal is sensed by the first sensing unit, a state of the transmittal line does not match with a pre-determined state, and when the external wireless signal is not sensed by the first sensing unit, the state of the transmittal line matches with the pre-determined state; a signal generating unit making the transmittal line match with the pre-determined state when the first sensing unit does not sense the external wireless signal; a control unit generating a movement signal when the state of the transmittal line matches with the pre-determined state; a plurality of wheels rotating according to the movement signal; and a second sensing unit generating a second sensing signal according to the external environment of the cleaning robot, wherein when the state of the transmittal line does not match with the pre-determined state, the control unit adjusts the movement signal according to the second sensing signal. ### Claim 2 (depends on 1) The cleaning robot as claimed in claim 1, wherein when the state of the transmittal line matches with the pre-determined state, the control unit adjusts the movement signal according to the second sensing signal. ### Claim 3 (depends on 1) The cleaning robot as claimed in claim 1, wherein when the state of the transmittal line does not match with the pre-determined state, the wheels leave the external wireless signal according to the movement signal. ### Claim 4 (depends on 1) The cleaning robot as claimed in claim 1, wherein when the state of the transmittal line does not match with the pre-determined state, the wheels rotate according to the movement signal such that the cleaning robot approaches to the external wireless signal. ### Claim 5 (depends on 4) The cleaning robot as claimed in claim 4, wherein the wheels rotate along the external wireless signal. ### Claim 6 (depends on 1) The cleaning robot as claimed in claim 1, further comprising: a rechargeable battery comprising a voltage, wherein when the voltage is less than a pre-determined value, the signal generating unit stops influencing the state of the transmittal line such that the state of the transmittal line does not match with the pre-determined state, and the control unit adjusts the movement signal according to the first sensing signal. ### Claim 7 (depends on 1) The cleaning robot as claimed in claim 1, further comprising: a case comprising a first opening to dispose the first sensing unit therein. ### Claim 8 (depends on 7) The cleaning robot as claimed in claim 7, wherein the first sensing unit is an omni-directional sensor. ### Claim 9 (depends on 7) The cleaning robot as claimed in claim 7, wherein the case further comprises a second opening to dispose the signal generating unit therein, and the signal generating unit is a luminescence device. ### Claim 10 (depends on 7) The cleaning robot as claimed in claim 7, wherein the signal generating unit is disposed within the case. ### Claim 11 A cleaning system, comprising: a wireless emitter generating an external wireless signal; and a cleaning robot comprising: a first sensing unit generating a sensing signal to a transmittal line according to an external wireless signal, wherein when the external wireless signal is sensed by the first sensing unit, a state of the transmittal line does not match with a pre-determined state, and when the external wireless signal is not sensed by the first sensing unit, the state of the transmittal line matches with the pre-determined state; a signal generating unit making the transmittal line match with the pre-determined state when the first sensing unit does not sense the external wireless signal; a control unit generating a movement signal when the state of the transmittal line matches with the pre-determined state; a plurality of wheels rotating according to the movement signal; and a second sensing unit generating a second sensing signal according to the external environment of the cleaning robot, wherein when the state of the transmittal line does not match with the pre-determined state, the control unit adjusts the movement signal according to the second sensing signal. ### Claim 12 (depends on 11) The cleaning system as claimed in claim 11, wherein when the state of the transmittal line matches with the pre-determined state, the control unit adjusts the movement signal according to the second sensing signal. ### Claim 13 (depends on 11) The cleaning system as claimed in claim 11, wherein when the state of the transmittal line does not match with the pre-determined state, the wheels leave the external wireless signal according to the movement signal. ### Claim 14 (depends on 11) The cleaning system as claimed in claim 11, wherein when the state of the transmittal line does not match with the pre-determined state, the wheels rotate according to the movement signal such that the cleaning robot approaches to the external wireless signal. ### Claim 15 (depends on 14) The cleaning system as claimed in claim 14, wherein the wheels rotate along the external wireless signal. ### Claim 16 (depends on 11) The cleaning system as claimed in claim 11, further comprising: a rechargeable battery comprising a voltage, wherein when the voltage is less than a pre-determined value, the signal generating unit stops making the state of the transmittal line match with the pre-determined state and the control unit adjusts the movement signal according to the first sensing signal. ### Claim 17 (depends on 11) The cleaning system as claimed in claim 11, further comprising: a case comprising a first opening to dispose the first sensing unit therein. ### Claim 18 (depends on 17) The cleaning system as claimed in claim 17, wherein the first sensing unit is an omni-directional sensor. ### Claim 19 (depends on 17) The cleaning system as claimed in claim 17, wherein the case further comprises a second opening to dispose the signal generating unit therein, and the signal generating unit is a luminescence device. ### Claim 20 (depends on 17) The cleaning system as claimed in claim 17, wherein the signal generating unit is disposed within the case.