WO2021227386A1 - Procédé et appareil de détection d'état et dispositif portable - Google Patents

Procédé et appareil de détection d'état et dispositif portable Download PDF

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Publication number
WO2021227386A1
WO2021227386A1 PCT/CN2020/125635 CN2020125635W WO2021227386A1 WO 2021227386 A1 WO2021227386 A1 WO 2021227386A1 CN 2020125635 W CN2020125635 W CN 2020125635W WO 2021227386 A1 WO2021227386 A1 WO 2021227386A1
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Prior art keywords
acceleration information
motor
information
preset
acceleration
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PCT/CN2020/125635
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English (en)
Chinese (zh)
Inventor
焦裕玺
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歌尔股份有限公司
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Publication of WO2021227386A1 publication Critical patent/WO2021227386A1/fr

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/18—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration in two or more dimensions

Definitions

  • This application relates to the field of detection technology, and in particular to a state detection method, a state detection device, and a wearable device.
  • smart wearable products with more and more complete functions are beginning to be accepted by people.
  • smart watches and bracelets also incorporate functions such as heart rate, blood oxygen monitoring, step counting, and positioning.
  • heart rate blood oxygen monitoring
  • step counting blood oxygen monitoring
  • positioning For such smart products to obtain high-precision monitoring data, they have high requirements on the wearing state.
  • the existing products on the market can hardly detect the wearing state of the product, and the acquired physiological health data is not accurate.
  • Most products only rely on the reflection signal of the green light or infrared light that comes with the heart rate monitoring module to determine whether the product is in the wearing state.
  • the product Once the product is placed on other objects, the light of the green or infrared light can also be reflected, the product will be wrong It is believed that it is in the wearing state and still working, storing inaccurate monitoring data, affecting the user's judgment of the health state, and wasting the power of smart watches and bracelet products.
  • the purpose of this application is to provide a state detection method, state detection device, and wearable device, which can quickly and accurately determine the wearing state of the user's wearable device.
  • the specific plan is as follows:
  • This application provides a state detection method, including:
  • the acceleration information and the preset calibration vibration characteristic information are used for matching to determine the wearing state of the wearable device.
  • controlling the motor to turn on when the reflected light is detected according to the optical signal includes:
  • the comparing the optical signal with a preset reference to obtain a comparison result includes:
  • the comparing the optical signal with a preset reference to obtain a comparison result includes:
  • the acquiring acceleration information of the motor collected by an acceleration sensor includes:
  • the matching of the acceleration information and preset calibration vibration characteristic information to determine the wearing state of the wearable device includes:
  • the actual acceleration information and the preset calibration vibration characteristic information are used for matching to determine the wearing state of the wearable device.
  • the actual acceleration information is used to match the preset calibration vibration characteristic information to determine the wearable device
  • the wearing state of includes:
  • the wearing state is irregular wearing.
  • the method further includes:
  • a detection request from the user is received, and the detection request is a request sent by the user using a preset operation after adjusting the wearing state according to the prompt information.
  • the preset method for calibrating vibration characteristic information includes:
  • the standard vibration characteristic information is determined according to the calibration acceleration information and preset standard acceleration information.
  • This application provides a state detection device, including:
  • the optical signal acquisition module is used to acquire the optical signal collected by the optical sensor
  • the motor start module is used to control the motor to start when the reflected light is detected according to the light signal;
  • An acceleration information acquisition module for acquiring acceleration information of the motor collected by an acceleration sensor
  • the wearing state determination module is used for matching the acceleration information with preset calibration vibration characteristic information to determine the wearing state of the wearable device.
  • This application provides a wearable device, including:
  • Light sensor used to collect light signals
  • An acceleration sensor for collecting acceleration information of the motor for collecting acceleration information of the motor
  • Memory used to store computer programs
  • the processor is used to implement the steps of the state detection method described above when the computer program is executed.
  • the present application provides a state detection method, including: acquiring the light signal collected by the light sensor; controlling the motor to turn on when the reflected light is detected according to the light signal; acquiring the acceleration information of the motor collected by the acceleration sensor; using acceleration information and presets The calibrated vibration characteristic information is matched to determine the wearing state of the wearable device.
  • This application also provides a state detection device and a wearable device, both of which have the above-mentioned beneficial effects, and will not be repeated here.
  • FIG. 1 is a flowchart of a state detection method provided by an embodiment of the application
  • FIG. 2 is a schematic flowchart of a motor control provided by an embodiment of the application
  • FIG. 3 is another state detection method provided by an embodiment of the application.
  • FIG. 4 is a schematic diagram of a process for determining a wearing state according to an embodiment of the application
  • FIG. 5 is a schematic structural diagram of a state detection device provided by an embodiment of the application.
  • FIG. 1 is a flowchart of a state detection method provided by an embodiment of the application, which specifically includes:
  • a light sensor is provided in the wearable device, and the light sensor is used to collect light signals.
  • this step is to roughly measure the wearing condition and determine the conditions under which the motor is turned on. When the reflected light is detected, it is determined to be blocked, and the control motor is turned on at this time.
  • the position and number of the motor settings are not limited, and the user can customize the settings.
  • the reflected light is the light reflected from the obstacle after the light sensor emits the light.
  • the obstacle may be the user's wrist or other objects.
  • the motor is controlled to turn on at this time.
  • the motor When the motor is controlled to be turned on in step S120, the motor starts to vibrate. At this time, the intensity, frequency, etc. of the motor vibration are not limited in this embodiment, and the user can customize the settings, as long as the purpose of this embodiment can be achieved.
  • the wearable device in this embodiment is provided with an acceleration sensor for collecting acceleration information after the motor vibrates. It is understandable that when the user is not wearing the wearable device, the motor vibration amplitude a1 corresponds to the obtained acceleration information b1; when the user successfully wears the wearable device, the motor vibration is greatly damped, and the motor vibration amplitude a2, the corresponding acceleration information b2, where a1>a2, b1>b2.
  • S140 Use acceleration information and preset calibration vibration characteristic information to match to determine the wearing state of the wearable device.
  • the acceleration information is matched with the preset calibration vibration characteristic information to determine the wearing state corresponding to the acceleration information.
  • the calibration vibration characteristic information includes the wearing state C corresponding to c, d, e, f, c, the wearing state D corresponding to d, the wearing state E corresponding to e, and the wearing state F corresponding to f.
  • the wearable state of the wearable device is determined to be C; when the acceleration information is successfully matched with d, the wearable state of the wearable device is determined to be D; when the acceleration information is successfully matched with e, the wearable state is determined
  • the wearing state of the device is E; when the acceleration information matches f successfully, it is determined that the wearing state of the wearable device is F.
  • the matching method is not limited in this embodiment, and it may be within a range or a fixed value, as long as it can achieve the purpose of this embodiment.
  • the preset method for calibrating the vibration characteristic information includes: reading the calibration instruction after the wearable device is correctly worn; obtaining the calibration acceleration information according to the calibration instruction; determining the standard vibration based on the calibration acceleration information and the preset standard acceleration information Characteristic information.
  • the preset standard acceleration information is information for all users. It is understandable that since the calibration acceleration information determined by each user is different, all users determine the standard vibration corresponding to the user based on the preset standard acceleration information. Characteristic information. For example, when the preset standard acceleration information is p and q, that is to say, when the acceleration is greater than or equal to p, it is not worn, if the acceleration is between p and q, the wear is not standard, and when the acceleration is less than or equal to q, it is worn; then The user obtains the unworn acceleration as p1 and the worn acceleration as q1 according to the first calibration instruction.
  • p2 is re-determined according to p and p1
  • q2 is re-determined according to q and q1
  • p2 and q2 are determined as standard vibration characteristic information.
  • this embodiment does not limit the number of accelerations and the manner of determining the standard vibration characteristic information, and the user can customize the settings.
  • this embodiment uses the light signal to determine when the reflected light is detected, the motor is turned on, and the motor’s vibration and acceleration information collected by the acceleration sensor are compared with the preset calibration vibration characteristic information to quickly and accurately determine the user’s The wearing state of the wearable device.
  • FIG. 2 is an embodiment of the application.
  • a schematic flow diagram of motor control including:
  • the purpose of this step is to compare the light signal with a preset reference reference, so as to be able to accurately determine the qualified emitted light, and only qualified reflected light can control the motor to turn on.
  • step S121 may include: judging whether the light signal intensity is within the preset light intensity range; if it is, it is determined that the reflected light is detected; if not, it is determined that the reflected light is not detected.
  • the light sensor collects the light signal. In this embodiment, only when the intensity of the received light signal is within the preset light intensity range, can it be determined that the reflected light is detected, and then the motor can be controlled to turn on; otherwise, The motor is off. It can be seen that in this embodiment, the light intensity is used to determine whether the light reflected by the light sensor in a short distance is detected. Only the reflected light that meets the requirements can the step of controlling the motor opening be performed, which improves the accuracy of the motor opening. sex.
  • step S121 may include: judging whether the distance corresponding to the light signal is less than the preset distance; if so, determining that the reflected light is detected; if not, determining that the reflected light is not detected.
  • the corresponding transmission distance is determined by the time information transmitted by the optical signal. Only when the distance is less than the preset threshold, it is determined that the reflected light is reflected, and then the step of controlling the motor opening can be performed, which improves the accuracy of the motor opening.
  • the reflected light When the reflected light is not detected, it enters the dormant state. At this time, the motor does not vibrate and no biological measurement is performed.
  • this embodiment compares the optical signal with a preset reference standard, and controls the motor to be turned on or kept in the closed state according to the comparison result, which improves the accuracy of motor turning on.
  • Figure 3 is another state detection method provided by an embodiment of this application, including:
  • the reference acceleration information is the three-axis acceleration information acquired by the three-axis acceleration sensor in a static state, and it is used as a reference value.
  • S132 Acquire vibration acceleration information collected by the acceleration sensor when the motor is turned on
  • S141 Determine actual acceleration information by using the reference acceleration information and the vibration acceleration information
  • the reference acceleration information is used to eliminate the impact of the wearable device on the vibration component when the wearable device is in different placement positions.
  • S142 Use actual acceleration information and preset calibration vibration characteristic information to match to determine the wearing state of the wearable device.
  • the actual acceleration information is used to determine the wearing state of the wearable device, and the result obtained is more accurate.
  • FIG. 4 is a schematic diagram of a process for determining a wearing state according to an embodiment of the application, including:
  • the first threshold is greater than the second threshold.
  • the physiological detection function can be controlled to be turned on, and heart rate detection and blood oxygen analysis can be performed.
  • Irregular wearing means that the wearable device is on the wrist, but it is too loose or too tight.
  • S1425 it also includes: sending prompt information to the prompt device; receiving a user's detection request, which is a request sent by the user using a preset operation after the user adjusts the wearing state according to the prompt information. It can be seen that by prompting the user to adjust the wear, so that the user can send a detection request to achieve physical health detection.
  • this embodiment provides a specific status detection method, including:
  • the wearable device is the first time the product is turned on, and it is calibrated after being worn correctly.
  • the acceleration sensor obtains the vibration data in the three directions of X, Y, and Z, which is the standard vibration characteristic information, which is used to calibrate the vibration.
  • the product heart rate detection module obtains the ambient light as a reference; lights up the green light or infrared light, and detects the light data at the same time, which can be the light signal intensity. After comparing with the reference benchmark, if the reflected light of the green light or infrared light is detected, go to step 4; if no light reflection is detected, it will enter the sleep mode and wait to be re-awakened;
  • the three-axis acceleration sensor obtains the reference acceleration information in the static state, and serves as the reference reference value in step 6, which is used to eliminate the impact of the vibration component when the product is in different positions;
  • the three-axis acceleration sensor obtains the vibration acceleration information in the vibration state within one second, and uses the three-axis acceleration data in the static state in step 4 as the reference value to calculate the root mean square value of the X, Y, and Z three-axis acceleration, and extract The three-axis vibration data is compared with the calibrated vibration characteristic database in step 1;
  • step 7 If it is greater than the first threshold, it means that the product is not worn, and automatically enters sleep mode, waiting to be re-awakened; if it is less than the second threshold, it is determined that the product is in the wearing state, and step 8 is executed; if it is between the first threshold and the second threshold , the product sends a message to notify the user to adjust the wearing posture, after the user responds, skip to step 3 to execute again;
  • step 3 When the product's heart rate detection module cannot detect the reflected signal of the green light or infrared light, turn off the heart rate monitoring, blood oxygen analysis and other functions, and notify the user of the abnormal wearing. If there is no user response within two minutes, go to step 3.
  • the optical signal acquisition module 510 is used to acquire the optical signal collected by the optical sensor
  • the motor start module 520 is used to control the motor to start when the reflected light is detected according to the light signal;
  • the acceleration information acquisition module 530 is used to acquire the acceleration information of the motor collected by the acceleration sensor;
  • the wearing state determining module 540 is configured to use acceleration information and preset calibration vibration characteristic information to match to determine the wearing state of the wearable device.
  • the motor opening module 520 includes:
  • the comparison result obtaining unit is used to compare the optical signal with a preset reference reference to obtain a comparison result
  • the first execution unit is used for controlling the motor to turn on if the result of the comparison is that reflected light is detected.
  • the comparison result obtaining unit includes:
  • the first judging subunit is used to judge whether the intensity of the light signal is within the preset light intensity range
  • the first determining subunit is used for determining that the reflected light is detected if it is so;
  • the second determining subunit is used for determining that the reflected light is not detected if not.
  • the comparison result obtaining unit includes:
  • the second judgment subunit is used to judge whether the distance corresponding to the optical signal is less than the preset distance
  • the third determining subunit is used for determining that the reflected light is detected if it is so;
  • the fourth determining subunit is used for determining that the reflected light is not detected if not.
  • the acceleration information acquisition module 530 includes:
  • the reference acceleration information acquiring unit is used to acquire the reference acceleration information in the resting state collected by the acceleration sensor;
  • the vibration acceleration information acquisition unit is used to acquire the vibration acceleration information collected by the acceleration sensor when the motor is turned on;
  • the wearing state determination module 530 includes:
  • the actual acceleration information determining unit is used to determine the actual acceleration information by using the reference acceleration information and the vibration acceleration information;
  • the wearing state determining unit is configured to use actual acceleration information and preset calibration vibration characteristic information to match to determine the wearing state of the wearable device.
  • the wearing state determination module 530 when the preset calibration vibration characteristic information includes the first threshold and the second threshold, the wearing state determination module 530 includes:
  • the first judging unit is used to judge whether the actual acceleration information is greater than the first threshold
  • the first determining unit is configured to determine that the wearing state is not worn and turn off the physiological detection function if it is greater than the first threshold;
  • the second judging unit is configured to judge whether the actual acceleration information is less than the second threshold if it is not greater than the first threshold;
  • the third determining unit is configured to determine that the wearing state is worn if it is less than the second threshold
  • the fourth determining unit is configured to determine that the wearing state is irregular wearing if it is not less than the second threshold.
  • it further includes:
  • Prompt information sending module used to send prompt information to the prompt device
  • the detection request receiving module is used to receive the user's detection request.
  • the detection request is a request sent by the user using a preset operation after adjusting the wearing state according to the prompt information.
  • it further includes:
  • the calibration instruction reading module is used to read the calibration instruction after wearing the wearable device correctly;
  • the calibration acceleration information acquisition module is used to acquire the calibration acceleration information according to the calibration instruction
  • the standard vibration characteristic information determining module is used to determine the standard vibration characteristic information according to the calibration acceleration information and the preset standard acceleration information.
  • a wearable device provided by an embodiment of the present application will be introduced below.
  • the wearable device described below and the state detection method described above can be referred to each other.
  • This embodiment provides a wearable device, including:
  • Light sensor used to collect light signals
  • Acceleration sensor used to collect the acceleration information of the motor
  • Memory used to store computer programs
  • the processor is used to implement the steps of the above state detection method when the computer program is executed.
  • the embodiment of the wearable device part corresponds to the embodiment of the state detection method part, for the embodiment of the wearable device part, please refer to the description of the embodiment of the state detection method part, which will not be repeated here.
  • the steps of the method or algorithm described in the embodiments disclosed in this document can be directly implemented by hardware, a software module executed by a processor, or a combination of the two.
  • the software module can be placed in random access memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disks, removable disks, CD-ROMs, or all areas in the technical field. Any other known storage media.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

Un procédé de détection d'état consiste : à obtenir un signal optique acquis par un capteur optique (S110) ; lorsqu'il est déterminé que la lumière réfléchie est détectée selon le signal optique, à commander le démarrage d'un moteur (S120) ; à obtenir des informations d'accélération du moteur acquises par un capteur d'accélération (S130) ; à mettre en correspondance lesdites informations avec celles préétablies de caractéristiques de vibrations d'étalonnage et à déterminer l'état de port d'un dispositif portable (S140). D'après ce qui précède, selon le procédé, lors de la détermination d'une détection de la lumière réfléchie par le signal optique, le moteur démarre et les vibrations du moteur et les informations d'accélération acquises par le capteur d'accélération sont comparées aux informations préétablies de caractéristiques de vibrations d'étalonnage, de telle sorte qu'il est possible de déterminer rapidement et précisément l'état de port du dispositif portable d'un utilisateur.
PCT/CN2020/125635 2020-05-15 2020-10-31 Procédé et appareil de détection d'état et dispositif portable WO2021227386A1 (fr)

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CN202010412657.4A CN111551197A (zh) 2020-05-15 2020-05-15 一种状态检测方法、状态检测装置、可穿戴设备
CN202010412657.4 2020-05-15

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CN112964175A (zh) * 2021-01-28 2021-06-15 歌尔科技有限公司 一种佩戴检测模块、佩戴检测方法及可穿戴设备
CN115211820A (zh) * 2021-04-15 2022-10-21 Oppo广东移动通信有限公司 电子配件的唤醒方法、装置、可穿戴设备及电子配件
CN113229794A (zh) * 2021-04-28 2021-08-10 深圳市沃特沃德信息有限公司 生物特征数据的采集方法、装置和可穿戴设备
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CN113397518A (zh) * 2021-06-30 2021-09-17 杭州思立普科技有限公司 智能穿戴设备及佩戴检测方法

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