# US 2017/0227935 A1 · Methods and devices for mode switching > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0227935 A1 - Document ID: US20170227935A1 - Status: Published application - Kind: A1 - Application number: 15/581,689 - Filed: 2017-04-28 - Published: 2017-08-10 - Earliest claimed: 2014-10-29 - Assignees: Xiaomi Inc. - Applicants: Xiaomi Inc. - Inventors: Jun SU; Anju CHEN; Yi WANG; Yi WU - Web page: https://patentgrep.com/patent/US20170227935A1 ## CPC - G05B 7/02: electric - G08C 17/02: using a radio link - H04M 1/72412: using two-way short-range wireless interfaces - H04M 2250/12: including a sensor for measuring a physical value, e.g. temperature or motion - G05B: CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS (systems for controlling or regulating non-electric variables G05D; systems for regulating electric or magnetic variables G05F; control devices or systems insofar as characterised by mechanical features only G05G) - G08C: TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS (fluid pressure transmitting systems F15B; mechanical means for transferring the output of a sensing member into a different variable G01D5/00; mechanical control systems G05G) - H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08) ## Abstract A method for a household electrical appliance to perform mode switching includes detecting whether a user is in a sleeping state, switching a current operation mode to a silent mode if the user is in the sleeping state, and operating in the silent mode. ## Claims ### Claim 1 A method for a household electrical appliance to perform mode switching, comprising: detecting whether a user is in a sleeping state; switching, if the user is in the sleeping state, a current operation mode to a silent mode; and operating in the silent mode. ### Claim 2 (depends on 1) The method according to claim 1, wherein detecting whether the user is in the sleeping state includes at least one of: acquiring physiological data of the user and detecting whether the user is in the sleeping state according to the physiological data; acquiring an operation state of a wireless access point and detecting whether the user is in the sleeping state according to the operation state of the wireless access point, or acquiring a noise value of a current environment and detecting whether the user is in the sleeping state according to the noise value. ### Claim 3 (depends on 2) The method according to claim 2, wherein: the household electrical appliance includes a fan, and operating in the silent mode includes: detecting a sleep quality of the user according to the physiological data; and adjusting a speed of the fan according to the sleep quality. ### Claim 4 (depends on 3) The method according to claim 3, further comprising: detecting a current air quality, wherein adjusting the speed of the fan includes adjusting the speed of the fan according to the sleep quality and the current air quality. ### Claim 5 (depends on 1) The method according to claim 1, wherein: the household electrical appliance includes a muffler, and operating in the silent mode includes enabling the muffler. ### Claim 6 A method for a controlling device coupled to a household electrical appliance to perform mode switching, comprising: detecting whether a user is in a sleeping state; and sending, if the user is in the sleeping state, a mode switching instruction to the household electrical appliance to switch a current operation mode of the household electrical appliance so that the household electrical appliance operates in a silent mode. ### Claim 7 (depends on 6) The method according to claim 6, wherein detecting whether the user is in the sleeping state includes at least one of: acquiring physiological data of the user and detecting whether the user is in the sleeping state according to the physiological data; acquiring an operation state of a wireless access point and detecting whether the user is in the sleeping state according to the operation state of the wireless access point; or acquiring a noise value of a current environment and detecting whether the user is in the sleeping state according to the noise value. ### Claim 8 (depends on 7) The method according to claim 7, wherein the household electrical appliance includes a fan, the method further including: detecting a sleep quality of the user according to the physiological data; generating a speed adjusting instruction according to the sleep quality; and sending the speed adjusting instruction to the household electrical appliance to adjust a speed of the fan according to the speed adjusting instruction. ### Claim 9 (depends on 8) The method according to claim 8, further comprising: detecting a current air quality, wherein generating the speed adjusting instruction includes generating the speed adjusting instruction according to the sleep quality and the current air quality. ### Claim 10 (depends on 6) The method according to claim 6, further comprising: establishing a binding relationship with the household electrical appliance in advance. ### Claim 11 A household electrical appliance device, comprising: a processor; and a non-transitory computer-readable storage medium storing instructions that, when executed by the processor, cause the processor to: detect whether a user is in a sleeping state; switch, if the user is in the sleeping state, a current operation mode to a silent mode; and operate the device in the silent mode. ### Claim 12 (depends on 11) The device according to claim 11, wherein the instructions further cause the processor to perform at least one of: acquiring physiological data of the user and detecting whether the user is in the sleeping state according to the physiological data; acquiring an operation state of a wireless access point and detecting whether the user is in the sleeping state according to the operation state of the wireless access point; or acquiring a noise value of a current environment and detecting whether the user is in the sleeping state according to the noise value. ### Claim 13 (depends on 12) The device according to claim 12, further comprising: a fan, wherein the instructions further cause the processor to: detect a sleep quality of the user according to the physiological data; and adjust a speed of the fan according to the sleep quality so as to operate the device in the silent mode. ### Claim 14 (depends on 13) The device according to claim 13, wherein the instructions further cause the processor to: detect a current air quality, and adjust the speed of the fan according to the sleep quality and the current air quality so as to operate the device in the silent mode. ### Claim 15 (depends on 11) The device according to claim 11, further comprising: a muffler, wherein the instructions further cause the processor to enable the muffler so as to operate the device in the silent mode. ### Claim 16 A controlling device coupled to a household electrical appliance, comprising: a processor; and a non-transitory computer-readable storage medium storing instructions that, when executed by the processor, cause the processor to: detect whether a user is in a sleeping state; and send, if the user is in the sleeping state, a mode switching instruction to the household electrical appliance to switch a current operation mode of the household electrical appliance so that the household electrical appliance operates in a silent mode. ### Claim 17 (depends on 16) The device according to claim 16, wherein the instructions further cause the processor to perform at least one of: acquiring physiological data of the user and detecting whether the user is in the sleeping state according to the physiological data; acquiring an operation state of a wireless access point and detecting whether the user is in the sleeping state according to the operation state of the wireless access point; or acquiring a noise value of a current environment and detecting whether the user is in the sleeping state according to the noise value. ### Claim 18 (depends on 17) The device according to claim 17, wherein: the household electrical appliance includes a fan, and the instructions further cause the processor to: detect a sleep quality of the user according to the physiological data; generate a speed adjusting instruction according to the sleep quality; and send the speed adjusting instruction to the household electrical appliance to adjust a speed of the fan according to the speed adjusting instruction. ### Claim 19 (depends on 18) The device according to claim 18, wherein the instructions further cause the processor to: detect a current air quality, and generate the speed adjusting instruction according to the sleep quality and the current air quality. ### Claim 20 (depends on 16) The device according to claim 16, wherein the instructions further cause the processor to establish a binding relationship with the household electrical appliance in advance.