CN114305331B - Method, device and equipment for collecting physiological parameters - Google Patents
Method, device and equipment for collecting physiological parameters Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000003287 optical effect Effects 0.000 claims description 66
- 238000005259 measurement Methods 0.000 claims description 59
- 238000001514 detection method Methods 0.000 claims description 21
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 claims description 21
- 238000004590 computer program Methods 0.000 claims description 3
- 238000013186 photoplethysmography Methods 0.000 description 43
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- 238000005516 engineering process Methods 0.000 description 4
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- 230000004913 activation Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 230000036772 blood pressure Effects 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
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- 210000000707 wrist Anatomy 0.000 description 2
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Abstract
The present disclosure provides a method, apparatus and device for acquiring physiological parameters. The method comprises the following steps: judging the wearing state of a user; according to the wearing state of the user, starting a corresponding sensor to acquire physiological parameter data; the wearable device is provided with a plurality of sensors, each sensor comprises a light receiver and a light emitter, the light receivers and the light emitters are arranged at different positions of the wearable device, the optimal data acquisition scheme is guaranteed to be adopted under different use scenes, physiological data are acquired by adopting the scheme of the plurality of light emitters and the plurality of light receivers instead of the scheme of directly adopting the plurality of light emitters, and therefore the use power consumption of the whole device is saved.
Description
Technical Field
The disclosure relates to the field of wearable technologies, and in particular, to a method, a device and equipment for acquiring physiological parameters.
Background
PPG (Photoplethysmography) technology is widely applied to wearable devices such as smart watches, bracelets, etc., and is used for monitoring physiological parameters such as heart rate, blood pressure, etc.
The PPG sensor is a special sensor for detecting physiological parameters of human body by utilizing a photoplethysmography technology, and comprises at least two sensor components, namely a light receiver and a light emitter. In the related art, in order to detect the accuracy of data, a scheme of multiple light emitters and multiple light receivers is used, and although the requirements of sports, daily scenes and the like can be met, the power consumption of the whole machine is increased, so that the actual use duration of a user is shortened.
Disclosure of Invention
To overcome the problems in the related art, the present disclosure provides a method, apparatus, and device for acquiring physiological parameters.
According to a first aspect of embodiments of the present disclosure, there is provided a method of acquiring physiological parameters, applied to a wearable device, comprising the steps of:
judging the wearing state of a user;
starting a corresponding sensor to acquire physiological parameter data according to the wearing state of the user; wherein the wearable device is configured with a plurality of the sensors, each of the sensors including an optical receiver and an optical transmitter, the optical receiver and the optical transmitter being arranged at different positions of the wearable device.
Optionally, the wearable device includes a tightness detection device, and the determining the wearing state of the user includes:
according to the tightness detection device, obtaining a measurement value of tightness;
and judging the wearing state of the user according to the magnitude relation between the measurement value of the tightness and a preset threshold value.
Optionally, the tightness detection device comprises an Indium Tin Oxide (ITO) coated electrode; according to elasticity detection device acquires the measurement value of elasticity, include:
obtaining a first measured value through the indium tin oxide ITO coated electrode;
and obtaining the measurement value of the tightness according to the first measurement value.
Optionally, the elasticity detection device includes indium tin oxide ITO coated electrode and pressure sensor, according to elasticity detection device acquires the measurement of elasticity, includes:
obtaining a first measured value through the indium tin oxide ITO coated electrode;
acquiring a second measured value through the pressure sensor;
and obtaining the measurement value of the tightness by weighting the first measurement value and the second measurement value.
Optionally, the step of starting the corresponding sensor to collect physiological parameter data according to the wearing state of the user includes:
selecting a first number of light emitters from a plurality of light emitters and a second number of light receivers from a plurality of light receivers, if the wearing state of the user is proper;
and starting a sensor formed by the selected light emitter and the selected light receiver to acquire physiological parameter data.
Optionally, the step of starting the corresponding sensor to collect physiological parameter data according to the wearing state of the user includes:
selecting a third number of light emitters from the plurality of light emitters and a fourth number of light receivers from the plurality of light receivers when the wearing state of the user is unsuitable and the wearing state of the user is loose, wherein the third number is not less than the first number and the fourth number is not less than the second number;
selecting a fifth number of light emitters from the plurality of light emitters and a sixth number of light receivers from the plurality of light emitters when the wearing state of the user is unsuitable and when the wearing state of the user is tight, wherein the fifth number is not less than the first number and the sixth number is not less than the second number;
and starting a sensor formed by the selected light emitter and the selected light receiver to acquire physiological parameter data.
Optionally, the distance between the first number of optical transmitters and the second number of optical receivers is a short distance, the distance between the third number of optical transmitters and the fourth number of optical receivers includes a long distance and a short distance, and the distance between the fifth number of optical transmitters and the sixth number of optical receivers is a long distance.
According to a second aspect of embodiments of the present disclosure, there is provided an apparatus for acquiring physiological parameters, applied to a wearable device, comprising:
the judging module is used for judging the wearing state of the user;
the starting module is used for starting the corresponding sensor to acquire physiological parameter data according to the wearing state of the user; wherein the wearable device is configured with a plurality of the sensors, each of the sensors including an optical receiver and an optical transmitter, the optical receiver and the optical transmitter being arranged at different positions of the wearable device.
According to a third aspect of embodiments of the present disclosure, there is provided a wearable device comprising:
a processor;
a memory for storing the processor-executable instructions;
wherein,
the processor is configured to perform the method provided in any of the first aspects.
According to a fourth aspect of embodiments of the present disclosure, there is provided a computer readable storage medium having stored thereon a computer program which, when executed by one or more processors, causes the processors to perform the method provided in any of the first aspects.
The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:
in the present disclosure, the wearing state of a user is determined; according to the wearing state of the user, starting a corresponding sensor to acquire physiological parameter data; wherein, the wearable equipment is configured with a plurality of sensors, and each sensor includes optical receiver and optical transmitter, and optical receiver and optical transmitter arrange in the different positions of wearable equipment, guarantee to adopt the best data acquisition scheme under different use scenes, and not directly adopt many optical transmitters and many optical receivers.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure and do not constitute an undue limitation on the disclosure.
FIG. 1 is a flow chart illustrating a method of acquiring physiological parameters in accordance with an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a biosensor distribution structure of a wearable device according to an embodiment of the present disclosure;
fig. 3 is a schematic structural view of an apparatus for acquiring physiological parameters according to an embodiment of the present disclosure.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.
It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context.
The PPG sensor is a special sensor for detecting physiological parameters of human body by utilizing a photoplethysmography technology, and comprises at least two sensor components, namely a light receiver and a light emitter. In the related art, in order to detect the accuracy of data, a scheme of multiple light emitters and multiple light receivers is used, and although the requirements of sports, daily scenes and the like can be met, the power consumption of the whole machine is increased, so that the actual use duration of a user is shortened. Therefore, in order to solve the problems in the related art, the embodiment of the disclosure provides a method for acquiring physiological parameters, which starts corresponding PPG sensors to acquire physiological parameter data by judging wearing states of users, and ensures that an optimal data acquisition scheme is adopted under different use scenes instead of a scheme of directly adopting multiple light emitters and multiple light receivers to acquire physiological data, thereby saving the use power consumption of the whole machine.
As shown in fig. 1, fig. 1 is a flowchart of a method for acquiring physiological parameters, which may be performed by a wearable device, such as a bracelet, a watch, etc., with heart rate detection function, where the wearable device is configured with a sensor for acquiring physiological parameter data, and the sensor may be a PPG sensor. The method shown in fig. 1 comprises the following steps:
step 101, judging the wearing state of the user.
In one embodiment, the wearing state of the user is the degree of tightness that the user perceives when the wearable device contacts the wearing part after the user wears the wearable device. For example, the wearable device is a smart watch carried on a wrist, and the wearing state of the wearable device can be the wearing state of the wearable device, which is the wearing state of the wearable device, wherein the user perceives that the wearing state of the wearable device on the wrist is suitable, loose and tight.
In an embodiment, the wearable device comprises a tightness detection device, and the measurement value of the tightness can be obtained through the tightness detection device; and judging the wearing state of the user according to the magnitude relation between the measurement value of the tightness and the preset threshold value.
The number of the preset tightness thresholds may be one or two or more, and in a preferred embodiment, the preset tightness thresholds are two, namely a first threshold and a second threshold. In one embodiment, the first and second thresholds may be empirical values. For example, the pressure value of the user in different wearing states after wearing the bracelet is obtained through a pressure sensor arranged on the intelligent bracelet, and the first threshold value and the second threshold value are obtained through statistics of the pressure values obtained on various bracelets or other possible wearable devices. The first threshold is a reference value when the wearing state of the user is tight, and the second threshold is a reference value when the wearing state of the user is loose.
When the measurement value of the tightness is not greater than a first threshold value, judging that the wearing state of the user is tight, and acquiring a PPG (photoplethysmography) signal at the moment, wherein the quality is generally even poor; when the measurement value of the tightness is not smaller than a second threshold value, judging that the wearing state of the user is loose, and acquiring a PPG (photoplethysmography) signal at the moment, wherein the quality is generally even poor; when the measurement value of the tightness is between the first threshold value and the second threshold value, the wearing state of the user is judged to be proper, and the collected PPG (photoplethysmography) signal is good in quality. It will be appreciated that the better the PPG signal quality, the more accurate the physiological parameter calculated therefrom.
In an embodiment, the tightness detection device may be, for example, an Indium Tin Oxide (ITO) coated electrode, and the first measurement value is obtained through the Indium Tin Oxide (ITO) coated electrode, and the measurement value of tightness is obtained according to the first measurement value. When the measurement value of the tightness is not more than a first threshold value, the wearing state of the user is tight, the quality of the collected PPG signal is generally even poor, and when the measurement value of the tightness is not less than a second threshold value, the wearing state of the user is loose, and the quality of the collected PPG signal is generally even poor; when the measurement value of the tightness is between the first threshold value and the second threshold value, the wearing state of the user is proper, and the collected PPG signal is good in quality. In this embodiment, the possible area of the wearable device in contact with the skin is provided with the indium tin oxide ITO coated electrode, and when the wearing state of the user is different, the contact area between the indium tin oxide ITO coated electrode and the skin is different, and the corresponding generated impedance value is also different. And determining the measurement value of the tightness according to the impedance values measured in different wearing states after the user wears the wearable equipment.
In an embodiment, the tightness detection device includes a pressure sensor and an Indium Tin Oxide (ITO) coated electrode, and before obtaining a measurement value of tightness, a first measurement value needs to be obtained through the Indium Tin Oxide (ITO) coated electrode, and a second measurement value needs to be obtained through the pressure sensor; and then, weighting the first measured value and the second measured value to obtain a measurement value of the tightness. When the measurement value of the tightness is not more than a first threshold value, the wearing state of the user is tight, the quality of the collected PPG signal is generally even poor, and when the measurement value of the tightness is not less than a second threshold value, the wearing state of the user is loose, and the quality of the collected PPG signal is generally even poor; when the measurement value of the tightness is between the first threshold value and the second threshold value, the wearing state of the user is proper, and the collected PPG signal is good in quality.
In this embodiment, compared with a single use of a pressure sensor or an Indium Tin Oxide (ITO) coated electrode to determine the wearing state of the user, in the embodiment of the present disclosure, the Indium Tin Oxide (ITO) coated electrode is disposed in a possible area where the wearable device contacts with the skin, and when the wearing state of the user is different, the contact area between the Indium Tin Oxide (ITO) coated electrode and the skin is different, and the corresponding generated impedance value is also different. Meanwhile, when the wearing state of the user is different, the pressure value detected by the pressure sensor is also different. In the actual wearing state of the wearable device, the wearable device perceives not only the pressure value, but also the contact area of the wearable device and the skin, and compared with the result obtained in a single way, the embodiment of the disclosure obtains the measurement value of the tightness by combining the impedance value and the pressure value, so that the data reliability and accuracy are better.
In a preferred embodiment, the weighting coefficients of the first measurement value and the second measurement value can be determined from the actual application by weighting the first measurement value and the second measurement value. For example, in the actual use process of the wearable device, the first measurement value and the second measurement value and the relation between the first measurement value and the second measurement value and the measurement value of the tightness are obtained by acquiring the first measurement value and the second measurement value under different wearing states of the user, and the weighting coefficients of the first measurement value and the second measurement value are obtained by data statistical analysis.
102, starting a corresponding sensor to acquire physiological parameter data according to the wearing state of a user; wherein the wearable device is configured with a plurality of sensors, each sensor comprising an optical receiver and an optical transmitter, the optical receiver and the optical transmitter being arranged in different positions of the wearable device.
As shown in fig. 2, fig. 2 is a schematic diagram of a biosensor distribution structure of a wearable device according to an embodiment of the disclosure. The biological sensor can be a PPG sensor, the wearable device is provided with a plurality of sensor components, each sensor component is an optical receiver or an optical emitter, and the optical receiver and the optical emitter are arranged at different positions of the wearable device at intervals. It will be appreciated that the PPG sensor comprises a plurality of sensor assemblies, and that at least two sensor assemblies may be selected as required to form the PPG sensor, wherein the sensor assemblies forming the PPG sensor include both an optical receiver and an optical transmitter.
In an embodiment, in the case where the wearing state of the user is proper, the first (a 1 ) A number of optical transmitters, and selecting a second (B 1 ) A number of optical receivers; and starting a sensor formed by the selected light emitter and the light receiver to acquire physiological parameter data.
In this embodiment, when the wearing state of the user is appropriate, the PPG signal collected at this time is of good quality. The better the PPG signal quality, the more accurate the physiological parameter calculated from it. Thus, the collection of physiological parameter data may select a smaller number of light emitter and receiver combinations, such as A 1 The number of light emitters and the number of light receivers adjacent to the light emitters, B1, form a PPG sensor to collect physiological parameter data.
The plurality of sensor assemblies are distributed in different areas of the wearable device, so that when the wearing state of a user is proper, loose and tight, corresponding PPG sensors are formed by starting the sensor assemblies in the different areas, physiological parameter data are acquired, the use efficiency of the PPG sensors can be effectively improved, and the use power consumption of the PPG sensors is reduced.
In an embodiment, when the wearing state of the user is inappropriate and the wearing state of the user is loose, a third (A 2 ) A number of optical transmitters, and selecting a fourth (B 2 ) A number of optical receivers, wherein,the third number is not less than the first number, and the fourth number is not less than the second number. And starting a sensor formed by the selected light emitter and the light receiver to acquire physiological parameter data.
In this embodiment, when the wearing state of the user is loose, the PPG signal acquired at this time is generally of even poor quality, so that acquisition of physiological parameter data can select a relatively large number of light emitter and receiver combinations, e.g. select a 2 Number of light emitters and B 2 The PPG sensor is formed by a plurality of adjacent light receivers and non-adjacent light receivers so as to collect a plurality of data and improve the accuracy of physiological parameter data.
In an embodiment, in the case where the wearing state of the user is unsuitable and when the wearing state of the user is tight, the fifth (a 3 ) A number of light emitters, and selecting a sixth (B 3 ) And the fifth number is not smaller than the first number, the sixth number is not smaller than the second number, and a sensor formed by the selected light emitter and the light receiver is started to acquire physiological parameter data.
In this embodiment, the PPG signal acquired at this time is of generally even poor quality when the wearing state of the user is tight, so that acquisition of physiological parameter data may select a relatively large number of light emitter and receiver combinations, e.g. select a 3 Number of light emitters and B not adjacent thereto 3 The number of the light receivers form the PPG sensor, so that the acquisition of physiological parameter data is realized, the use efficiency of the PPG sensor is improved, and the use power consumption of the PPG sensor is reduced.
In an embodiment, as shown in fig. 2, a plurality of light receivers and a plurality of light emitters are configured in the wearable device, wherein the light receivers and the light emitters are arranged at different positions of the wearable device at intervals. The at least one light receiver and the at least one light emitter constitute a PPG sensor, that is to say a PPG sensor comprising at least two sensor assemblies, wherein both the light receiver and the light emitter are comprised in the sensor assemblies constituting the sensor. As shown in fig. 2, each light receiver may be equally spaced from an adjacent light emitter by D1 and non-adjacent light emitters may be equally spaced from each other by D2.
It should be noted that in some preferred embodiments, the light receiver may be a photodiode, and the light emitter may be a trichromatic LED lamp and/or a monochromatic LED lamp.
In one possible implementation, the corresponding sensor may be activated to collect physiological parameter data according to different wearing states of the user. The physiological parameter data of the user in each wearing state, such as heart rate, blood oxygen, blood pressure, etc., can be detected by activating the corresponding light emitter and light receiver. A lot of research data indicate that the measurement of the heart rate of the user requires that a certain distance is met between the light receiver and the light emitter, so that when the PPG sensor on the wearable device is selected to be activated, the light receiver and the light emitter at the corresponding area positions need to be activated in order to test the heart rate of the user in each wearing state. When the wearing state of the user is proper, starting the sensor formed by the selected first number of light emitters and the second number of light receivers, wherein the distance between the first number of light emitters and the second number of light receivers is a short distance, namely starting the combination of the light emitters and the light receivers with the short distance; starting the selected sensor formed by the third number of light emitters and the fourth number of light receivers under the condition that the wearing state of the user is unsuitable and when the wearing state of the user is loose, wherein the distance between the third number of light emitters and the fourth number of light receivers comprises a long distance and a short distance, namely, the combination of the light emitters and the light receivers with the long distance is started and the combination of the light emitters and the light receivers with the short distance is started; and under the condition that the wearing state of the user is unsuitable and when the wearing state of the user is tight, starting the sensor formed by the selected fifth number of light emitters and the sixth number of light receivers, wherein the distance between the fifth number of light emitters and the sixth number of light receivers is a long distance, namely starting the long-distance combination of the light emitters and the light receivers.
For example, when the wearing state of the user is proper, the PPG signals collected at this time are of good quality, so 1 is selectedA light emitter and 1 adjacent short-distance light receiver, and another light emitter and another adjacent short-distance light receiver opposite to the selected sensor assembly are selected, and the sensor (A) is composed of 4 sensor assemblies 1 ＝2，B 1 =2) to acquire physiological parameters; in case the wearing state of the user is unsuitable and in case the wearing state of the user is loose, the PPG signal collected at this time is generally of even poor quality, so that 1 light emitter and at least one short-distance light receiver adjacent thereto and at least one long-distance light receiver not adjacent thereto are selected, while another light emitter and short-distance light receiver adjacent thereto and long-distance light receiver not adjacent thereto, which are arranged opposite to the above-mentioned selected sensor assembly, are selected, and the sensor (a) is constituted by at least 6 sensor assemblies 2 ＝2，B 2 =4) to acquire physiological parameters; in the case of unsuitable wearing state of the user and in the case of tight wearing state of the user, the PPG signal collected at this time is generally of even poor quality, so that 1 light emitter and at least one long-distance light receiver not adjacent thereto are selected, while another light emitter arranged opposite to the above-mentioned selected sensor assembly and a long-distance light receiver not adjacent thereto are selected, and the sensor (a) is composed of at least 4 sensor assemblies 2 ＝2，B 2 =2) to acquire physiological parameters.
In conclusion, the wearing state of the user is judged; according to the wearing state of the user, starting a corresponding sensor to acquire physiological parameter data; the wearable device is provided with a plurality of sensors, each sensor comprises a light receiver and a light emitter, the light receivers and the light emitters are arranged at different positions of the wearable device, the optimal data acquisition scheme is guaranteed to be adopted under different use scenes, physiological data are acquired by adopting the scheme of the plurality of light emitters and the plurality of light receivers instead of the scheme of directly adopting the plurality of light emitters, and therefore the use power consumption of the whole device is saved.
An embodiment is described below, with reference to fig. 2. Taking a light receiver as a photodiode, a light emitter as a three-color lamp as an example, in the figure, 2, 3, 4 and 5 as three-color lamps (red, green and infrared), 6, 7, 8 and 9 as photodiodes, 1 as a pressure sensor and a gray disc area as an indium tin oxide ITO coated electrode area. Wherein, the distance between each tri-color lamp and the adjacent photodiode is the same as D1, and the distance between each tri-color lamp and the non-adjacent photodiode is also the same as D2. Wherein D2 is greater than D1.
When the wearing state of the user is proper, 1 tri-color lamp is randomly selected from a plurality of tri-color lamps, for example, a No. 2 tri-color lamp, a No. 6 or a No. 7 photodiode is adjacent to the No. 2 tri-color lamp, and when the No. 6 photodiode is selected, only the No. 8 photodiode and the No. 4 tri-color lamp are in a symmetrical region symmetrical to the No. 2 tri-color lamp and the No. 6 photodiode. Here, the symmetric region refers to a connecting line of the No. 2 tri-color lamp and the No. 6 photodiode with a diameter of the center of the circle as a symmetry axis. When the No. 7 photodiode is selected, the principle is the same, the No. 4 tri-color lamp and the No. 9 photodiode are correspondingly selected, and the selected tri-color lamp and diode are started to serve as a sensor when the wearing state is proper, so that physiological parameter data are acquired. Here, the activation sequence of the tri-color lamp and the photodiode is not limited, and it is understood that the activation sequence of the light emitter is not later than the light receiver.
In the case that the wearing state of the user is unsuitable and when the wearing state of the user is loose, all photodiodes and tri-colored lamps in the numbers 2-9 are required to be selected for starting, wherein the numbers 2-9 refer to the 8 sensor assemblies from the numbers 2 to 9, the combination of the tri-colored lamps and the photodiodes can comprise short-distance 2-6,2-7, 3-8, 4-9,5-6,5-9 and long-distance 2-8,2-9,3-6,3-9,4-6,4-7, 5-8, and all the photodiodes and the tri-colored lamps are started as sensors when the wearing state is loose, so that physiological parameter data are acquired, the starting sequence is not limited, and it is understood that the starting sequence of the light emitters is not later than that of the light receivers.
In the case where the wearing state of the user is unsuitable and when the wearing state of the user is tight, one tri-color lamp, for example, no. 3 tri-color lamp, is randomly selected from the plurality of tri-color lamps, and then photodiodes non-adjacent to the No. 3 tri-color lamp, that is, no. 6 and No. 9 photodiodes are selected. And then determining the diameters of the connecting lines of the photodiodes parallel to the No. 6 and the No. 9 as symmetry axes, dividing the symmetry areas, selecting the No. 5 tri-color lamps and the No. 7 and 8 photodiodes which are symmetrical with the No. 3 tri-color lamps and the No. 6 and 9 photodiodes in the symmetry areas according to the divided symmetry areas, and starting the selected tri-color lamps and diodes as sensors when the wearing state is tight, so as to acquire physiological parameter data, wherein it can be understood that the starting sequence of the light emitter is no later than that of the light receiver.
It should be emphasized that in embodiments where the layout of the other light receivers and light emitters does not have symmetry, the specific sensor may be determined with reference to the wearing state described above and the number and positional relationship of the light receivers and light emitters that make up the sensor, the above being merely exemplary embodiments.
Accordingly, as shown in fig. 3, fig. 3 is a schematic structural diagram of an apparatus for acquiring a physiological parameter according to an embodiment of the present disclosure, where the apparatus for acquiring a physiological parameter is applied to a wearable device, the apparatus for acquiring a physiological parameter 30 includes:
the judging module 31 is configured to judge a wearing state of the user.
The starting module 32 is used for starting the corresponding sensor to acquire physiological parameter data according to the wearing state of the user; wherein the wearable device is configured with a plurality of sensors, each sensor comprising an optical receiver and an optical transmitter, the optical receiver and the optical transmitter being arranged in different positions of the wearable device.
Optionally, the wearable device includes a tightness detection device, and the judging module 31 is specifically configured to obtain a measurement value of tightness according to the tightness detection device; and judging the wearing state of the user according to the magnitude relation between the measurement value of the tightness and a preset threshold value.
Optionally, the tightness detection device includes an indium tin oxide ITO coated electrode, and the judging module 31 is specifically configured to obtain a first measurement value through the indium tin oxide ITO coated electrode; and obtaining the measurement value of the tightness according to the first measurement value.
Optionally, the tightness detection device includes a pressure sensor and an ITO coated electrode, and the judging module 31 is specifically configured to obtain a first measured value through the indium tin oxide ITO coated electrode; acquiring a second measured value through the pressure sensor; and obtaining the measurement value of the tightness by weighting the first measurement value and the second measurement value.
Optionally, the starting module 32 is specifically configured to select, in a case where the wearing state of the user is appropriate, a first number of light emitters from the plurality of light emitters, and a second number of light receivers selected from the plurality of light receivers; and starting a sensor formed by the selected light emitter and the selected light receiver to acquire physiological parameter data.
Optionally, the starting module 32 is specifically configured to select a third number of light emitters from the plurality of light emitters and select a fourth number of light receivers from the plurality of light receivers when the wearing state of the user is inappropriate and the wearing state of the user is loose, where the third number is not less than the first number and the fourth number is not less than the second number; selecting a fifth number of light emitters from the plurality of light emitters and a sixth number of light receivers from the plurality of light emitters when the wearing state of the user is unsuitable and when the wearing state of the user is tight, wherein the fifth number is not less than the first number and the sixth number is not less than the second number; and starting a sensor formed by the selected light emitter and the selected light receiver to acquire physiological parameter data.
Optionally, the distance between the first number of optical transmitters and the second number of optical receivers is a short distance, the distance between the third number of optical transmitters and the fourth number of optical receivers includes a long distance and a short distance, and the distance between the fifth number of optical transmitters and the sixth number of optical receivers is a long distance.
The implementation process of the functions and actions of each module in the device for acquiring physiological parameters is specifically detailed in the implementation process of corresponding steps in the method for acquiring physiological parameters, and is not described herein again.
Accordingly, the present disclosure also provides a wearable device, comprising:
a processor;
a memory for storing the processor-executable instructions;
wherein,
the processor is configured to perform the method of acquiring physiological parameters provided by any of the foregoing embodiments of the present disclosure.
Accordingly, the present disclosure also provides a computer-readable storage medium having stored thereon a computer program which, when executed by one or more processors, causes the processors to perform the method of acquiring physiological parameters provided by any of the foregoing embodiments of the present disclosure.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the claims.
The foregoing description of the preferred embodiments of the present disclosure is not intended to limit the disclosure, but rather to cover all modifications, equivalents, improvements and alternatives falling within the spirit and principles of the present disclosure.
Claims (8)
1. A method of acquiring physiological parameters, characterized by being applied to a wearable device configured with a plurality of sensors, each of the sensors including an optical receiver and an optical transmitter, the optical receiver and the optical transmitter being arranged at different locations of the wearable device, the method comprising:
judging the wearing state of a user;
selecting a first number of light emitters from a plurality of light emitters and a second number of light receivers from a plurality of light receivers, if the wearing state of the user is proper;
selecting a third number of light emitters from a plurality of light emitters and a fourth number of light receivers from a plurality of light receivers when the wearing state of the user is loose, wherein the third number is not smaller than the first number and the fourth number is not smaller than the second number;
selecting a fifth number of light emitters from the plurality of light emitters and a sixth number of light receivers from the plurality of light emitters under the condition that the wearing state of the user is tight, wherein the fifth number is not less than the first number and the sixth number is not less than the second number;
starting a sensor formed by the selected light emitter and the light receiver to acquire physiological parameter data;
wherein the distance between the first number of optical transmitters and the second number of optical receivers is a first distance, the distance between the third number of optical transmitters and the fourth number of optical receivers comprises a second distance and the first distance, the distance between the fifth number of optical transmitters and the sixth number of optical receivers is a third distance, the second distance is greater than the first distance, and the third distance is greater than the first distance.
2. The method of claim 1, wherein the wearable device includes tightness detection means, and the determining the wearing state of the user includes:
according to the tightness detection device, obtaining a measurement value of tightness;
and judging the wearing state of the user according to the magnitude relation between the measurement value of the tightness and a preset threshold value.
3. The method of claim 2, wherein the tightness detection device comprises an indium tin oxide, ITO, coated electrode; according to elasticity detection device acquires the measurement value of elasticity, include:
obtaining a first measured value through the indium tin oxide ITO coated electrode;
and obtaining the measurement value of the tightness according to the first measurement value.
4. The method of claim 2, wherein the tightness detection device comprises an Indium Tin Oxide (ITO) coated electrode and a pressure sensor, and wherein obtaining the tightness measure from the tightness detection device comprises:
obtaining a first measured value through the indium tin oxide ITO coated electrode;
acquiring a second measured value through the pressure sensor;
and obtaining the measurement value of the tightness by weighting the first measurement value and the second measurement value.
5. The method of claim 1, wherein the third number of optical transmitters and the fourth number of optical receivers comprise: a light receiver adjacent to a first light emitter in the third number of light emitters and a light receiver not adjacent to the first light emitter, wherein a distance between the first light emitter and the adjacent light receiver is the first distance, and a distance between the first light emitter and the non-adjacent light receiver is the second distance; or alternatively
The third number of light emitters includes a first light emitter and a second light emitter disposed opposite each other.
6. An apparatus for acquiring physiological parameters, applied to a wearable device, the wearable device configured with a plurality of sensors, each sensor including an optical receiver and an optical transmitter, the optical receiver and the optical transmitter being arranged at different positions of the wearable device, comprising:
the judging module is used for judging the wearing state of the user;
a starting module for:
selecting a first number of light emitters from a plurality of light emitters and a second number of light receivers from a plurality of light receivers, if the wearing state of the user is proper;
selecting a third number of light emitters from a plurality of light emitters and a fourth number of light receivers from a plurality of light receivers when the wearing state of the user is loose, wherein the third number is not smaller than the first number and the fourth number is not smaller than the second number;
selecting a fifth number of light emitters from the plurality of light emitters and a sixth number of light receivers from the plurality of light emitters under the condition that the wearing state of the user is tight, wherein the fifth number is not less than the first number and the sixth number is not less than the second number;
starting a sensor formed by the selected light emitter and the light receiver to acquire physiological parameter data;
wherein the distance between the first number of optical transmitters and the second number of optical receivers is a first distance, the distance between the third number of optical transmitters and the fourth number of optical receivers comprises a second distance and the first distance, the distance between the fifth number of optical transmitters and the sixth number of optical receivers is a third distance, the second distance is greater than the first distance, and the third distance is greater than the first distance.
7. A wearable device, comprising:
a processor;
a memory for storing the processor-executable instructions;
wherein,
the processor configured to perform the method of any of the preceding claims 1-5.
8. A computer-readable storage medium, having stored thereon a computer program which, when executed by one or more processors, causes the processors to perform the method of any of claims 1-5.
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