# US 2017/0284906 A1 · Plug-in air quality detector, control method and control device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0284906 A1 - Document ID: US20170284906A1 - Status: Published application - Kind: A1 - Application number: 15/467,769 - Filed: 2017-03-23 - Published: 2017-10-05 - Earliest claimed: 2016-03-29 - Assignees: Beijing Xiaomi Mobile Software Co., Ltd. - Applicants: Beijing Xiaomi Mobile Software Co., Ltd. - Inventors: Zheng XING; Ningning LI; Lei ZHANG - Web page: https://patentgrep.com/patent/US20170284906A1 ## CPC - G01N 1/2273: {Atmospheric sampling} - F24F 11/30: for purposes related to the operation of the system, e.g. for safety or monitoring - G01N 15/06: Investigating concentration of particle suspensions (by weighing G01N5/00; investigating sedimentation of particle suspensions G01N15/04; investigating individual particles G01N15/10) - G01N 33/0027: {concerning the detector} - G01N 33/0062: {concerning the measuring method or the display, e.g. intermittent measurement or digital display} - G01N 33/0073: {Control unit therefor} - H04M 1/21: Combinations with auxiliary equipment, e.g. with clocks or memoranda pads - H04M 1/72409: by interfacing with external accessories (hands-free H04M1/60) - B60H 1/008: {the input being air quality} - F24F 2110/50: Air quality properties - G01N 15/0205: by optical means - G01N 15/075: by optical means - G01N 2001/2276: {Personal monitors} - G01N 2001/2285: {Details of probe structures} - G01N 2015/0046: {in gas, e.g. smoke} - H04M 2250/12: including a sensor for measuring a physical value, e.g. temperature or motion - Y02B 30/70: Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating - G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q) - F24F: AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING (removing dirt or fumes from areas where they are produced B08B15/00; vertical ducts for carrying away waste gases from buildings E04F17/02; tops for chimneys or ventilating shafts, terminals for flues F23L17/02) - H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08) - B60H: ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES - Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS ## Abstract A plug-in air quality detector, a control method, and a control circuit are provided in the field of air quality detection. The plug-in air quality detector comprises a casing, a sensor component, a control circuit and a connector component. The connector component includes a power supply terminal and a data terminal, and is configured to connect the plug-in air quality detector with a user device. As such, the detector may prompt a user of the air quality around the user without being configured with a dedicated power supply and a dedicated display screen, thereby achieving the effects of reducing the size and the weight of the air quality detector and improving the ease of use. ## Claims ### Claim 1 A plug-in air quality detector, comprising: a sensor component and a control circuit disposed inside a casing; and a connector component comprises a power supply terminal and a data terminal, the connector component being configured to connect the plug-in air quality detector with a user device, wherein the control circuit is electrically connected with the sensor component and the connector component respectively; and wherein the sensor component is configured to measure an air quality parameter of air around the plug-in air quality detector. ### Claim 2 (depends on 1) The plug-in air quality detector of claim 1, further comprising an indicating lamp having at least two light emitting modes, wherein the indicating lamp is electrically connected with the control circuit. ### Claim 3 (depends on 2) The plug-in air quality detector of claim 2, wherein the casing comprises an upper cover, a lower cover, and a lateral surrounding casing, and wherein the indicating lamp is arranged at least partially in the upper cover. ### Claim 4 (depends on 3) The plug-in air quality detector of claim 3, wherein the sensor component and the control circuit are fixed inside a space enclosed by the upper cover, the lower cover, and the lateral surrounding casing, and the lateral surrounding casing comprises a plurality of holes therein. ### Claim 5 (depends on 3) The plug-in air quality detector of claim 3, wherein the connector component is located outside a space enclosed by the upper cover, the lower cover, and the lateral surrounding casing, and an end of the connector component that is connected with the control circuit is fixed onto the lower cover. ### Claim 6 (depends on 3) The plug-in air quality detector of claim 3, further comprising a power button, wherein the power button is electrically connected with the control circuit. ### Claim 7 (depends on 6) The plug-in air quality detector of claim 6, wherein the power button is arranged on the upper cover or the lateral surrounding casing. ### Claim 8 (depends on 1) The plug-in air quality detector of claim 1, wherein the connector component is a plug component corresponding to a headset jack on the user device. ### Claim 9 (depends on 1) The plug-in air quality detector of claim 1, wherein the connector component is a plug component corresponding to a universal serial bus jack on the user device. ### Claim 10 (depends on 1) The plug-in air quality detector of claim 1, further comprising an indicating lamp having at least two light emitting modes, wherein the casing comprises an upper cover, a lower cover, and a lateral surrounding casing, and wherein the indicating lamp is arranged between the upper cover and the lateral surrounding casing. ### Claim 11 (depends on 1) The plug-in air quality detector of claim 1, further comprising an indicating lamp having at least two light emitting modes, wherein the casing comprises an upper cover, a lower cover, and a lateral surrounding casing, and wherein the indicating lamp is arranged between the lower cover and the lateral surrounding casing. ### Claim 12 A method, comprising: connecting, a plug-in air quality detector comprising: a connector component, a sensor component, and a control circuit disposed inside a casing, with a user device via the connector component, wherein the control circuit is electrically connected with the sensor component and the connector component respectively; acquiring, by the control circuit, an air quality parameter of air around the plug-in air quality detector measured by the sensor component; and giving a prompt by the control circuit according to the air quality parameter. ### Claim 13 (depends on 12) The method of claim 12, wherein the plug-in air quality detector comprises an indicating lamp, and giving the prompt by the control circuit according to the air quality parameter comprises: determining a light emitting mode of the indicating lamp according to the air quality parameter; and controlling the indicating lamp to emit light according to the determined light emitting mode. ### Claim 14 (depends on 13) The method of claim 13, wherein the indicating lamp at least has a first light emitting mode and a second light emitting mode, and determining the light emitting mode of the indicating lamp according to the air quality parameter comprises: determining whether the air quality parameter is greater than a preset parameter threshold; when the air quality parameter is greater than the preset parameter threshold, determining the light emitting mode of the indicating lamp as the first light emitting mode; and when the air quality parameter is not greater than the preset parameter threshold, determining the light emitting mode of the indicating lamp as the second light emitting mode. ### Claim 15 (depends on 12) The method of claim 12, wherein the plug-in air quality detector comprises an indicating lamp, and wherein the method further comprises: Sending, by the control circuit, the air quality parameter to the user device via the connector component; receiving a control instruction from the user device, the control instruction comprising a light emitting mode of the indicating lamp; and controlling the indicating lamp to emit light according to the light emitting mode. ### Claim 16 (depends on 12) The method of claim 12, further comprising: connecting the plug-in air quality detector with the user device by plugging the connector component into a headset jack on the user device; and sending, by the control circuit, the air quality parameter to the user device via the connector component connected with the headset jack on the user device. ### Claim 17 A control circuit, the control circuit comprising: a processor that is electrically connected with a sensor component and a connector component in a plug-in air quality detector; and a memory configured to store instructions executable by the processor, wherein the processor is configured to: when the plug-in air quality detector is connected with a user device via a connector component in the plug-in air quality detector, acquire an air quality parameter of air around the plug-in air quality detector measured by the sensor component; and give a prompt according to the air quality parameter. ### Claim 18 (depends on 17) The control circuit according to claim 17, wherein the processor is further configured to: determine whether the plug-in air quality detector comprises an indicating lamp; determine a light emitting mode of the indicating lamp according to the air quality parameter; and control the indicating lamp to emit light according to the determined light emitting mode after determining that the plug-in air quality detector comprises the indicating lamp. ### Claim 19 (depends on 18) The control circuit according to claim 18, wherein the processor is further configured to: determine whether the air quality parameter is greater than a preset parameter threshold; when the air quality parameter is greater than the preset parameter threshold, determine the light emitting mode of the indicating lamp as a first light emitting mode; and when the air quality parameter is not greater than the preset parameter threshold, determine the light emitting mode of the indicating lamp as a second light emitting mode. ### Claim 20 (depends on 17) The control circuit according to claim 17, wherein the processor is further configured to: send the air quality parameter to the user device via the connector component; determine whether the plug-in air quality detector comprises an indicating lamp; receive a control instruction from the user device, the control instruction comprising a light emitting mode of the indicating lamp; and control the indicating lamp to emit light according to the light emitting mode after determining that the plug-in air quality detector comprises the indicating lamp.