# US 10,119,715 B2 · Method and device for turning on air conditioner

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- Number: US 10,119,715 B2
- Document ID: US10119715B2
- Status: Granted
- Kind: B2
- Application number: 15/091,729
- Filed: 2016-04-06
- Published: 2016-11-17
- Granted: 2018-11-06
- Earliest claimed: 2015-05-11
- Assignees: Xiaomi Inc.
- Applicants: Xiaomi Inc.
- Inventors: Enxing Hou; Yun Yang; Changbing Chen
- Web page: https://patentgrep.com/patent/US10119715B2

## CPC

- F24F 11/30: for purposes related to the operation of the system, e.g. for safety or monitoring
- A61B 5/01: Measuring temperature of body parts {; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue} (clinical contact thermometers G01K13/20)
- A61B 5/02055: {Simultaneously evaluating both cardiovascular condition and temperature}
- A61B 5/02438: {with portable devices, e.g. worn by the patient}
- A61B 5/11: Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb {(A61B5/1038 takes precedence; motion detection to correct for motion artifacts in physiological signals A61B5/721)}
- A61B 5/4812: {Detecting sleep stages or cycles}
- F24F 11/62: characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- G05B 15/02: electric
- A61B 5/02416: {using photoplethysmograph signals, e.g. generated by infrared radiation (A61B5/14552 takes precedence)}
- A61B 5/0245: by using sensing means generating electric signals, {i.e. ECG signals}
- A61B 5/681: {Wristwatch-type devices}
- F24F 11/66: Sleep mode
- F24F 2120/10: Occupancy
- F24F 2120/14: Activity of occupants
- 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)
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- 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)

## Abstract

The present disclosure provides a method for turning on an air conditioner and a device for turning on an air conditioner, belonging to the field of smart home. The method includes: acquiring a sensor parameter collected by a sensor in a wearable device; determining a physiological parameter based on the sensor parameter; determining a change in a sleep state of a user wearing the wearable device based on the physiological parameter; detecting whether the change in the sleep state is in conformity with a predetermined condition; and turning on the air conditioner when the change in the sleep state is detected to be in conformity with the predetermined condition.

## Claims

### Claim 1

A method for turning on an air conditioner, comprising:
acquiring a sensor parameter collected by a sensor in a wearable device;
determining a physiological parameter based on the sensor parameter;
determining a change in a sleep state of a user wearing the wearable device based on the physiological parameter, the sleep state comprising at least a deep sleep state and a light sleep state;
detecting whether the change in the sleep state is in conformity with a predetermined condition, the predetermined condition comprising a transition from the deep sleep state to the light sleep state; and
turning on the air conditioner when the change in the sleep state is detected to be in conformity with the predetermined condition,
wherein prior to turning on the air conditioner, the method further comprises determining an estimated length of time period t1 during which the user will be in the light sleep state, and
the turning on the air conditioner comprises:
turning on the air conditioner immediately when the change in the sleep state is detected to be in conformity with the predetermined condition in the case of t1≤t2; and
turning on the air conditioner after a time period (t1−t2) from the change in the sleep state being detected to be in conformity with the predetermined condition in the case of t1>t2,
wherein t2 represents an estimated length of time period during which a room temperature will be adjusted to a target temperature by the air conditioner.

### Claim 2 (depends on 1)

The method according to claim 1, wherein the physiological parameter is at least one of a heart rate parameter, a body temperature parameter, or a body movement parameter, and
the determining a physiological parameter based on the sensor parameter comprises at least one of:
determining the heart rate parameter based on a parameter collected by an infrared sensor or a piezoelectric sensor in the wearable device;
determining the body temperature parameter based on a parameter collected by a temperature sensor in the wearable device; or
determining the body movement parameter based on a parameter collected by a body movement sensor in the wearable device.

### Claim 3 (depends on 1)

The method according to claim 1, wherein the determining an estimated length of time period t1 during which the user will be in the light sleep state comprises:
acquiring historical sleep state information including each historical time period during which the user was in the light sleep state; and
determining an average length of the historical time periods during which the user was in the light sleep state as the estimated length of time period t1.

### Claim 4 (depends on 1)

The method according to claim 1, wherein prior to turning on the air conditioner, the method further comprises:
determining whether a time point of detecting, at which the change in the sleep state is detected to be in conformity with the predetermined condition, is within a predetermined time period; and
turning on the air conditioner when the time point of detecting is within the predetermined time period.

### Claim 5

A device for turning on an air conditioner, comprising:
a processor; and
a memory configured to store instructions executable by the processor,
wherein the processer is configured to:
acquire a sensor parameter collected by a wearable device;
determine a physiological parameter based on the sensor parameter;
determine a change in a sleep state of a user wearing the wearable device based on the physiological parameter, wherein the sleep state comprises at least a deep sleep state and a light sleep state;
detect whether the change in the sleep state is in conformity with a predetermined condition, wherein the predetermined condition comprises a transition from the deep sleep state to the light sleep state; and
turn on the air conditioner when the change in the sleep state is detected to be in conformity with the predetermined condition,
wherein the processer is further configured to determine an estimated length of time period t1 during which the user will be in the light sleep state prior to turning on the air conditioner, and
the processer is further configured to:
turn on the air conditioner immediately when the change in the sleep state is detected to be in conformity with the predetermined condition in the case of t1≤t2; and
turn on the air conditioner after a time period (t1−t2) from the change in the sleep state being detected to be in conformity with the predetermined condition in the case of t1>t2,
wherein t2 represents an estimated length of time period during which a room temperature will be adjusted to a target temperature by the air conditioner.

### Claim 6 (depends on 5)

The device according to claim 5, wherein the physiological parameter is at least one of a heart rate parameter, a body temperature parameter, or a body movement parameter, and
the processer is configured to determine a physiological parameter based on the sensor parameter by performing at least one of:
determining the heart rate parameter based on a parameter collected by an infrared sensor or a piezoelectric sensor in the wearable device;
determining the body temperature parameter based on a parameter collected by a temperature sensor in the wearable device; or
determining the body movement parameter based on a parameter collected by a body movement sensor in the wearable device.

### Claim 7 (depends on 5)

The device according to claim 5, wherein the processer is configured to determine an estimated length of time period t1 during which the user will be in the light sleep state time by:
acquiring historical sleep state information including each historical time period during which the user was in the light sleep state; and
determining an average length of the historical time periods during which the user was in the light sleep state as the estimated length of time period t1.

### Claim 8 (depends on 5)

The device according to claim 5, wherein the processer is further configured to:
determine whether a time point of detecting, at which the change in the sleep state is detected to be in conformity with the predetermined condition, is within a predetermined time period prior to turning on the air conditioner; and
turn on the air conditioner when the time point of detecting is within the predetermined time period.

### Claim 9

A non-transitory computer-readable storage medium having stored therein instructions that, when executed by a processor of a device, cause the device to perform a method for turning on an air conditioner, the method comprising:
acquiring a sensor parameter collected by a sensor in a wearable device;
determining a physiological parameter based on the sensor parameter;
determining a change in a sleep state of a user wearing the wearable device based on the physiological parameter, the sleep state at least comprising a deep sleep state and a light sleep state;
detecting whether the change in the sleep state is in conformity with a predetermined condition, the predetermined condition comprising a transition from the deep sleep state to the light sleep state; and
turning on the air conditioner when the change in the sleep state is detected to be in conformity with the predetermined condition,
wherein prior to turning on the air conditioner, the method further comprises determining an estimated length of time period t1 during which the user will be in the light sleep state, and
the turning on the air conditioner comprises:
turning on the air conditioner immediately when the change in the sleep state is detected to be in conformity with the predetermined condition in the case of t1≤t2; and
turning on the air conditioner after a time period (t1−t2) from the change in the sleep state being detected to be in conformity with the predetermined condition in the case of t1>t2,
wherein t2 represents an estimated length of time period during which a room temperature will be adjusted to a target temperature by the air conditioner.