WO2022021649A1 - Procédé et appareil de mesure de température, dispositif à porter sur soi et support de stockage - Google Patents

Procédé et appareil de mesure de température, dispositif à porter sur soi et support de stockage Download PDF

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Publication number
WO2022021649A1
WO2022021649A1 PCT/CN2020/125632 CN2020125632W WO2022021649A1 WO 2022021649 A1 WO2022021649 A1 WO 2022021649A1 CN 2020125632 W CN2020125632 W CN 2020125632W WO 2022021649 A1 WO2022021649 A1 WO 2022021649A1
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WO
WIPO (PCT)
Prior art keywords
temperature
wearable device
temperature sensor
ambient
sensor
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PCT/CN2020/125632
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English (en)
Chinese (zh)
Inventor
骆俊谕
郄勇
叶鑫
王芬清
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歌尔股份有限公司
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Publication of WO2022021649A1 publication Critical patent/WO2022021649A1/fr

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K15/00—Testing or calibrating of thermometers
    • G01K15/005—Calibration

Definitions

  • the present application relates to the technical field of smart wearable devices, and in particular, to a temperature detection method, a device, a wearable device, and a storage medium.
  • Smart wearable device is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices.
  • Smart wearable devices can include smart watches, smart bracelets, smart glasses, etc. Users can better perceive external and self information through smart wearable devices, so as to efficiently process information with the assistance of computers and networks.
  • Body temperature detection based on smart wearable devices can facilitate users to understand their body temperature status, but human body temperature is divided into depth temperature and body surface temperature, and depth temperature should not be measured.
  • the temperature distribution of the human body surface is the highest in the frontal face, armpits, front of the neck, and neck, followed by the trunk, and gradually decreases to the limbs, and the palm and the back of the hands are the lowest. Since the surface temperature of the wrist and forehead is greatly affected by the ambient temperature, it is too wrong to detect the body temperature simply by measuring the surface temperature of the wrist and forehead of the human body.
  • the temperature of the housing of the smart wearable device is often used as the ambient temperature for temperature compensation, but this method of detecting the ambient temperature ignores the self-heating of the smart wearable device, and there is an error in the measurement of the ambient temperature.
  • the purpose of the present application is to provide a temperature detection method, a device, a wearable device and a storage medium, which can improve the accuracy of detecting ambient temperature.
  • the application provides a temperature detection method, the temperature detection method includes:
  • the first temperature sensor is arranged on the device casing of the wearable device
  • the second temperature sensor is provided inside the device of the wearable device
  • the ambient temperature before determining the ambient temperature according to the temperature of the outer surface of the device and the temperature of the inner device, it also includes:
  • determining the ambient temperature according to the external surface temperature of the device and the internal temperature of the device includes:
  • the first temperature sensor and the second temperature sensor are contact temperature sensors.
  • the first temperature sensor is attached to the device casing of the wearable device through a thermally conductive material.
  • the third temperature sensor is a non-contact sensor
  • correct the user's body surface temperature according to the ambient temperature to obtain the user's actual body temperature including:
  • the temperature correction weight is determined according to the measurement site, and the user's body surface temperature is corrected according to the ambient temperature and the temperature correction weight to obtain the actual body temperature of the user.
  • a heat insulation layer is provided outside the third temperature sensor.
  • the application also provides a temperature detection device, the temperature detection device includes:
  • a housing temperature acquisition module used for acquiring the temperature of the outer surface of the device collected by the first temperature sensor; wherein the first temperature sensor is arranged on the device housing of the wearable device;
  • an internal temperature acquisition module for acquiring the internal temperature of the device collected by the second temperature sensor; wherein the second temperature sensor is provided inside the device of the wearable device;
  • the ambient temperature determination module is used to determine the ambient temperature according to the external surface temperature of the device and the internal temperature of the device.
  • the present application also provides a storage medium on which a computer program is stored, and when the computer program is executed, the steps performed by the above temperature detection method are implemented.
  • the present application also provides a wearable device, including a memory and a processor, where a computer program is stored in the memory, and the processor calls the computer program in the memory to implement the steps performed by the above temperature detection method.
  • the present application provides a temperature detection method, which includes acquiring the temperature of the outer surface of the device collected by a first temperature sensor; wherein the first temperature sensor is arranged on a device casing of a wearable device; acquiring the internal temperature of the device collected by the second temperature sensor; wherein , the second temperature sensor is set inside the device of the wearable device; the ambient temperature is determined according to the external surface temperature of the device and the internal temperature of the device.
  • a first temperature sensor is arranged on the device casing of the wearable device, and a second temperature sensor is also arranged inside the device of the wearable device.
  • the first temperature sensor can collect the temperature of the outer surface of the wearable device
  • the second temperature sensor can collect the wearable temperature
  • the device internal temperature of the device The temperature outside the casing of the wearable device is affected by both the ambient temperature and the self-heating of the wearable device, so the ambient temperature of the environment where the wearable device is located can be determined according to the internal temperature and temperature of the device.
  • the present application eliminates the interference of the wearable device's self-heating on the detection of the ambient temperature by acquiring the internal temperature of the device, and the ambient temperature is determined by the external surface temperature of the device and the internal temperature of the device, which improves the accuracy of detecting the ambient temperature.
  • the present application also provides a temperature detection device, a storage medium and a wearable device, which have the above beneficial effects, and will not be repeated here.
  • FIG. 2 is a schematic diagram of the working principle of a wearable device provided by an embodiment of the present application
  • FIG. 3 is a front view of a whole machine of a wearable device provided by an embodiment of the present application.
  • FIG. 4 is a schematic cross-sectional view of a wearable device provided by an embodiment of the present application.
  • FIG. 5 is a schematic cross-sectional view of another wearable device provided by an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a temperature detection device provided by an embodiment of the present application.
  • FIG. 1 is a flowchart of a temperature detection method provided by an embodiment of the present application.
  • S101 Acquire the temperature of the outer surface of the device collected by the first temperature sensor
  • this embodiment can be applied to wearable devices such as smart bracelets, smart watches, AR (Augmented Reality, augmented reality) glasses, etc., and can also be applied to electronic devices such as mobile phones and computers connected to the wearable devices.
  • a first temperature sensor is provided on the device casing of the wearable device, and the first temperature sensor can collect the temperature of the outer surface of the device (ie, the outer side of the device casing) in contact with the external environment.
  • the first temperature sensor in this embodiment may be embedded in the device casing and at least partially exposed to the external environment.
  • the device casing is made of a thermally conductive material (such as copper, stainless steel, etc.)
  • the first temperature sensor may be disposed inside the device and connected to the device casing through the thermally conductive material.
  • a second temperature sensor may also be provided inside the device of the wearable device, and the second temperature sensor may measure the internal temperature of the device of the wearable device.
  • the above-mentioned second temperature sensor may be a contact temperature sensor.
  • the second temperature sensor may be set in a position inside the wearable device that is not easily affected by the ambient temperature, so as to obtain information on the working conditions of the wearable device at various times.
  • the internal temperature of the device in mode.
  • the second temperature sensor may be arranged on the main board of the wearable device, and the temperature of the main board may be used as the internal temperature of the device.
  • S103 Determine the ambient temperature according to the external surface temperature of the device and the internal temperature of the device.
  • the outer surface of the wearable device is in direct contact with the external environment, so the temperature of the outer surface of the device is affected by the ambient temperature, and the inner side of the device housing of the wearable device is the device internal environment of the wearable device, so the outer surface temperature of the device is also affected by the internal temperature of the device. Impact.
  • the external surface temperature of the wearable device is determined by the ambient temperature and the internal temperature of the device, that is, there is a certain correspondence between the external surface temperature of the wearable device, the internal temperature of the device and the ambient temperature.
  • the ambient temperature is calculated based on the external surface temperature of the device and the internal temperature of the device.
  • this embodiment can also construct a temperature relationship table including multiple sets of known device outer surface temperatures, known device internal temperatures, and known ambient temperatures, and further establish the known device outer surface temperature and device internal temperature. Based on the temperature, query the temperature relation table to obtain the corresponding ambient temperature.
  • a temperature fitting function of the temperature of the external surface of the device, the temperature of the internal temperature of the device, and the ambient temperature can also be constructed, and the ambient temperature can be determined according to the temperature fitting function.
  • the current ambient temperature can be displayed through the display device, the current ambient temperature can be broadcast through the voice playback device, and corresponding prompt information can be generated when the ambient temperature is higher or lower than a certain critical value. If this embodiment is applied to a wearable device with a body temperature detection function, a correction operation based on the ambient temperature can be performed on the body surface temperature detected by the wearable device to obtain the real body temperature. Through the above body temperature detection method, the interference of ambient temperature on body temperature detection can be reduced, and the reliability of body temperature detection can be improved.
  • a first temperature sensor is set on the device casing of the wearable device, and a second temperature sensor is also set inside the device of the wearable device.
  • the first temperature sensor can collect the external surface temperature of the wearable device
  • the second temperature sensor can collect The internal temperature of the wearable device.
  • the external surface temperature of the wearable device is affected by both the ambient temperature and the self-heating of the wearable device. Therefore, the ambient temperature of the environment where the wearable device is located can be determined according to the internal temperature of the device and the external surface temperature of the device. It can be seen that this embodiment eliminates the interference of the wearable device's own heating on ambient temperature detection by acquiring the internal temperature of the device.
  • N kinds of target ambient temperatures and M kinds of working modes are the outer surface temperature of the target device and the inner temperature of the target device, and then a temperature fitting function is generated according to the outer surface temperature of the target device, the inner temperature of the target device and the target ambient temperature.
  • the above working modes may include any one or any combination of the following modes: (1) turn on the positioning function when the screen of the wearable device is off; (2) play music at 50% volume of the wearable device; (3) wear The device plays music at 100% volume; (4) the wearable device uses the call function.
  • the operation of determining the ambient temperature according to the device outer surface temperature and the device inner temperature may be: determining the ambient temperature corresponding to the device outer surface temperature and the device inner temperature according to the temperature fitting function.
  • the following describes the process of generating the temperature fitting function through a specific example: under the target ambient temperature T amb1 , let the wearable device work in working mode 1, working mode 2, ..., working mode n respectively, and obtain the outer surface temperature T of the target device. out_m1_amb1 , T out_m2_amb1 , ..., T out_mn_amb1 and target device internal temperatures T in_m1_amb1 , T in_m2_amb1 , ..., T in_mn_amb1 .
  • T amb A(T out ) 3 +B(T out ) 2 +C(T out ) 2 T in +D T out T in +ET in +FT out +G, where A, B, C, D, E, F, G are compensation coefficients.
  • Substitute the collected data of the target ambient temperature T amb , the outer surface temperature T out of the target device and the internal temperature T in of the target device into the above polynomial, and the above compensation coefficients A, B, C, D, E can be obtained through data fitting processing, F, the value of G, so as to obtain the temperature fitting function of the target ambient temperature T amb , the target device outer surface temperature T out and the target device internal temperature T in .
  • the user body surface temperature collected by the third temperature sensor may also be obtained, and the user body surface temperature may be corrected according to the ambient temperature to obtain the actual body temperature of the user.
  • the above-mentioned third temperature sensor may be a non-contact sensor disposed on the wearable device, and a heat insulating layer is disposed outside the third temperature sensor to improve detection accuracy. Since the user's body surface temperature collected by the non-contact sensor is easily affected by the ambient temperature, the above method uses the ambient temperature to correct the user's body surface temperature on the basis of the known ambient temperature to obtain the user's real body temperature.
  • the temperature of the oral cavity, armpit or anus can be used as the real body temperature of the user.
  • the process of using the ambient temperature to correct the user's body surface temperature to obtain the user's real body temperature If the ambient temperature is T amb , the user's body surface temperature is T1, and the user's real body temperature T2 is calculated as follows:
  • T2 T1+(T1-T amb )*Q;
  • the measurement part corresponding to the temperature of the user's body surface can be determined first;
  • the temperature correction weight is determined according to the measurement site, and the user's body surface temperature is corrected according to the ambient temperature and the temperature correction weight to obtain the actual body temperature of the user.
  • the temperature correction weight of the forehead is 0.2
  • the temperature correction weight of the back of the hand is 0.25.
  • the temperature of user A's forehead and the temperature of the back of user B's hand are both 32 degrees Celsius.
  • FIG. 2 is a schematic diagram of the working principle of a wearable device provided by an embodiment of the present application
  • FIG. 3 is a schematic diagram of a wearable device provided by an embodiment of the present application
  • FIG. 4 is a schematic cross-sectional view of a wearable device provided by an embodiment of the present application
  • FIG. 5 is a schematic cross-sectional view of another wearable device provided by an embodiment of the present application.
  • 201 is the main body of the device
  • 202 is the human body surface temperature detection module
  • 203 is the device shell temperature detection module
  • 204 is the device internal temperature detection module
  • IR is Infrared Radiation
  • the optical cover is set at 202 is the human body surface temperature Check the cover on the outside of the module.
  • the wearable device may include, but is not limited to, a microprocessor, a graphics processor, an audio module, a display module, a mobile communication module, a WiFi module, a device internal motherboard temperature detection module, and a device housing. Temperature detection module, battery and power management module.
  • the microprocessor is the operation control part of the wearable device, which can complete operations such as fetching instructions, executing instructions, and exchanging information with external memory and logic components;
  • the graphics processor can draw graphics content and drive the display module to display graphics;
  • the memory Various application programs and related data can be stored;
  • the display module can display the display information of the system processing module, such as pictures, videos, UI (User Interface, user interface), etc.;
  • the audio module can include an audio decoding unit and a speaker unit, which can The audio content of the system processing module is decoded and sound is generated;
  • the battery and power management module provides power and power management for each module of the device;
  • the mobile communication module can be but not limited to 4G mobile communication module, 5G mobile communication module, etc.
  • the module realizes connection with an external network (such as the Internet);
  • the WiFi module can connect to a WiFi hotspot or a local area network router, and then connect with an external network (such as the Internet).
  • the human body surface temperature detection module may include a non-contact thermopile temperature sensor (ie, the third temperature sensor in the embodiment corresponding to FIG. 1 ) installed above the top case of the wearable device, so as to measure the surface of the forehead. temperature.
  • the human body surface temperature detection module may include a non-contact thermopile temperature sensor (ie, the third temperature sensor in the embodiment corresponding to FIG.
  • the human body surface temperature detection module may further include a contact temperature sensor (including but not limited to NTC, thermocouple, PN junction temperature sensor, etc.) installed under the bottom case of the wearable device to measure the wrist surface temperature, and convert the human body surface temperature data sent to the microprocessor.
  • a contact temperature sensor including but not limited to NTC, thermocouple, PN junction temperature sensor, etc.
  • the internal temperature detection module of the device includes, but is not limited to, an NTC temperature sensor, a PN junction temperature sensor, a thermocouple temperature sensor, etc. (that is, the second temperature sensor in the embodiment corresponding to FIG. 1 ) located on the internal motherboard or other positions of the wearable device, which can detect The temperature Tin at a fixed position inside the wearable device is sent to the microprocessor.
  • the device shell temperature detection module includes but is not limited to the NTC temperature sensor, PN junction temperature sensor, thermocouple temperature sensor, etc. located on the middle frame shell or top shell of the wearable device, which can detect the inside of the wearable device. Fix the temperature T in at the location and send this temperature data to the microprocessor.
  • the temperature sensing area of the device shell temperature detection module can be exposed outside the shell of the wearable device, or can be closely attached to the thermally conductive metal shell of the wearable device through a thermally conductive material.
  • the contact temperature sensor installed above the top shell of the wearable device or on the side of the middle frame can measure the temperature T out of the outer surface of the device.
  • the temperature T in inside the wearable device is measured by a temperature sensor on the internal motherboard or other positions of the wearable device.
  • the ambient temperature Tamb is measured using an external standard thermometer. The relationship between the external surface temperature T out of the device, the temperature T in inside the wearable device and the ambient temperature T amb is analyzed, and an nth degree polynomial dispersion curve is established.
  • the wearable device work in different modes and at different ambient temperatures, collect a large amount of data of the above three, and fit the above data to obtain the coefficients of the polynomial, so as to obtain the relationship between the above three, That is, the temperature fitting functions corresponding to the external surface temperature of the device, the internal temperature of the device and the ambient temperature are obtained.
  • the wearable device measures and obtains the external surface temperature T out of the device and the temperature T in inside the wearable device
  • the ambient temperature Tamb after compensating for the influence of the internal heat source of the wearable device can be obtained through the above temperature fitting function, so as to realize the wearable device to Accurate measurement of ambient temperature.
  • the ambient temperature and the human body surface temperature data measured by the user are obtained through the above method, and the real body temperature is obtained through a certain ambient temperature compensation algorithm, which improves the reliability of body temperature measurement.
  • FIG. 6 is a schematic structural diagram of a temperature detection device provided by an embodiment of the present application.
  • the apparatus may include:
  • the shell temperature acquisition module 100 is used for acquiring the temperature of the outer surface of the device collected by the first temperature sensor; wherein, the first temperature sensor is arranged on the device shell of the wearable device;
  • the internal temperature acquisition module 200 is used to acquire the internal temperature of the device collected by the second temperature sensor; wherein, the second temperature sensor is provided inside the device of the wearable device;
  • the ambient temperature determination module 300 is configured to determine the ambient temperature according to the temperature of the outer surface of the device and the temperature of the inner surface of the device.
  • a first temperature sensor is set on the device casing of the wearable device, and a second temperature sensor is also set inside the device of the wearable device.
  • the first temperature sensor can collect the external surface temperature of the wearable device
  • the second temperature sensor can collect The internal temperature of the wearable device.
  • the external surface temperature of the wearable device is affected by both the ambient temperature and the self-heating of the wearable device. Therefore, the ambient temperature of the environment where the wearable device is located can be determined according to the internal temperature of the device and the external surface temperature of the device.
  • this embodiment eliminates the interference of the wearable device's own heating on the detection of the ambient temperature by acquiring the internal temperature of the device, and the ambient temperature is determined by the external surface temperature of the device and the internal temperature of the device, which improves the accuracy of detecting the ambient temperature.
  • a relational building block is used to obtain the external surface temperature of the target device and the internal temperature of the target device under N target ambient temperatures and M operating modes of the wearable device before determining the ambient temperature according to the external surface temperature of the device and the internal temperature of the device; also use It is used to generate a temperature fitting function according to the external surface temperature of the target device, the internal temperature of the target device and the target ambient temperature;
  • the ambient temperature determination module 300 is specifically a module for determining the ambient temperature corresponding to the external surface temperature of the device and the internal temperature of the device according to the temperature fitting function.
  • first temperature sensor and the second temperature sensor are contact temperature sensors.
  • the first temperature sensor is attached to the device casing of the wearable device through a thermally conductive material.
  • a body surface temperature detection module for acquiring the user's body surface temperature collected by a third temperature sensor; wherein the third temperature sensor is a non-contact sensor;
  • the body temperature correction module is used to correct the user's body surface temperature according to the ambient temperature to obtain the user's actual body temperature.
  • the body temperature correction module includes:
  • a part determination unit used to determine the measurement part corresponding to the temperature of the user's body surface
  • the correction unit is used for determining the temperature correction weight according to the measurement position, and correcting the user's body surface temperature according to the ambient temperature and the temperature correction weight, so as to obtain the actual body temperature of the user.
  • a heat insulating layer is provided outside the third temperature sensor.
  • the present application also provides a storage medium on which a computer program is stored, and when the computer program is executed, the steps provided by the above embodiments can be implemented.
  • the storage medium may include: U disk, removable hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes.
  • the present application also provides a wearable device, which may include a memory and a processor, where a computer program is stored in the memory, and when the processor invokes the computer program in the memory, the steps provided in the above embodiments can be implemented.
  • a wearable device may also include various network interfaces, power supplies and other components.

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Abstract

Procédé et appareil de mesure de température, support de stockage et dispositif à porter sur soi. Le procédé de mesure de température consiste : à obtenir une température de surface externe de dispositif acquise par un premier capteur de température (203) (S101), le premier capteur de température (203) étant disposé sur un boîtier de dispositif du dispositif à porter sur soi; à obtenir une température interne de dispositif acquise par un second capteur de température (204) (S102), le second capteur de température (204) étant disposé à l'intérieur du dispositif à porter sur soi; et à déterminer une température ambiante en fonction de la température de surface externe du dispositif et de la température interne du dispositif (S103). Le procédé et l'appareil de mesure de température, le support de stockage et le dispositif à porter sur soi permettent d'améliorer la précision de mesure d'une température ambiante.
PCT/CN2020/125632 2020-07-27 2020-10-31 Procédé et appareil de mesure de température, dispositif à porter sur soi et support de stockage WO2022021649A1 (fr)

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