WO2023071457A1

WO2023071457A1 - Physiological parameter measurement method and wearable device

Info

Publication number: WO2023071457A1
Application number: PCT/CN2022/113691
Authority: WO
Inventors: 解松林; 靳俊叶; 刘翔宇; 许刚; 严家兵; 李东
Original assignee: 华为技术有限公司
Priority date: 2021-10-30
Filing date: 2022-08-19
Publication date: 2023-05-04
Also published as: CN116058832A

Abstract

A wearable device (100). By means of the wearable device (100), the blood glucose of a person to be subjected to measurement can be measured. During a blood glucose measurement process, according to the wearable device (100), when it can be ensured by means of a deformation assembly on the wearable device (100) that the measurement condition is consistent every time, a blood glucose measurement assembly on the wearable device (100) is then started to generate a radio frequency signal for measuring blood glucose, and finally, a blood glucose measurement result is obtained. Therefore, the measurement condition during each blood glucose measurement is consistent, thereby improving the accuracy of blood glucose measurement, and enabling the blood glucose of a person to be subjected to measurement to be accurately and conveniently measured by using the wearable device (100).

Description

A physiological parameter detection method and wearable device

This application claims the priority of the Chinese patent application filed with the State Intellectual Property Office of China on October 30, 2021, with the application number 202111280670.X and the application name "A Method for Detection of Physiological Parameters and Wearable Devices", the entire content of which Incorporated in this application by reference.

technical field

The present application relates to the technical field of terminals, in particular to a method for detecting physiological parameters and a wearable device.

Background technique

With the improvement of living standards, there are more and more people with high blood sugar. Blood sugar is an important physiological indicator reflecting the state of human health, so more and more people pay attention to whether blood sugar is normal. At present, when blood sugar is detected, blood sugar detection is generally carried out by manual blood sampling, which makes it difficult for people to conveniently detect blood sugar. Therefore, how to provide a device that can accurately and conveniently detect blood sugar of a user is a technical problem that needs to be solved urgently.

Contents of the invention

The present application provides a physiological parameter detection method and a wearable device, which can accurately and conveniently detect a user's blood sugar.

In order to achieve the above object, the application adopts the following technical solutions:

In a first aspect, the present application provides a wearable device, including: a device main body, a flexible fixing belt, a blood glucose detection component and a deformation component. A display screen is arranged on the main body of the device; the flexible fixing belt is connected to both ends of the main body of the device; the blood glucose detection component is arranged on the main body of the device and/or the flexible fixing belt, and at least part of the components on the blood glucose testing component are located on the first surface of the main body of the device Or the second surface of the flexible fixing belt, the first surface is the surface on the side of the device body that is away from the display screen, and the second surface is the surface on the side of the flexible fixing belt that is away from the display screen; At least part of the components are arranged on the flexible fixing belt, and the deformation component is used to reduce the distance between the first surface of the device main body and the skin of the person to be tested, and/or, reduce the distance between the side of the flexible fixing belt close to the person to be tested. The distance between the second surface of the tester and the skin of the person to be tested. Wherein, the wearable device is used to control the blood glucose detection component to generate a radio frequency signal to detect the blood glucose of the person to be tested when the first parameter reaches a preset value, wherein the first parameter is used to represent the deformation amount of the deformation component.

In this way, in the process of detecting blood sugar, the wearable device can ensure that the detection conditions are consistent every time through the deformation component on it, and then start the blood sugar detection component on it to generate a radio frequency signal for detecting blood sugar, and finally obtain the blood sugar detection result . As a result, the detection conditions for each detection of blood glucose are consistent, thereby improving the accuracy of blood glucose detection, so that the wearable device can be used to accurately and conveniently detect the blood glucose of the person to be tested.

In a possible implementation manner, the blood glucose detection component may include: a signal generating and sending circuit, a radio frequency filter, and a signal receiving circuit. The signal generation and transmission circuit is at least used to generate a first radio frequency signal, and the first radio frequency signal includes a plurality of signals of different frequencies; the radio frequency filter is at least used to select the frequency of the first radio frequency signal, wherein the radio frequency filter is set at the target on the surface, and the surface on the side of the radio frequency filter close to the person to be tested is flush with the target surface, the target surface includes the first surface or the second surface, and the best resonant frequency of the radio frequency filter when it is not in contact with the skin of the person to be tested The point is different from the optimal resonant frequency point of the RF filter when it contacts the skin of the person to be tested; the signal receiving circuit is at least used to obtain the second RF signal after frequency selection by the RF filter, and send the signal to the processor in the wearable device Sending a second radio frequency signal, the second radio frequency signal includes a signal of at least one frequency; wherein, the processor is used to determine the blood glucose detection result according to the first radio frequency signal and the second radio frequency signal.

In this way, in the process of detecting blood sugar, the signal generation and transmission circuit can generate a radio frequency signal, and the radio frequency filter can perform frequency selection on the radio frequency signal generated by the signal generation and transmission circuit, and transmit the frequency selected radio frequency signal to the processing unit through the signal receiving circuit. The device, and then the processor can determine the blood sugar concentration of the person to be tested according to the difference between the radio frequency signal generated by the signal generation and transmission circuit and the radio frequency signal sent by the signal receiving circuit, that is, the blood sugar detection result is obtained.

In a possible implementation manner, the blood glucose detection component may include: a signal generation and transmission circuit, a radio frequency antenna, and a signal reception circuit. The signal generating and sending circuit is at least used to generate a first radio frequency signal, and the first radio frequency signal includes a plurality of signals of different frequencies; the radio frequency antenna is at least used to radiate part of the first radio frequency signal to the outside of the radio frequency antenna, wherein, The radio frequency antenna is arranged on the target surface, and the surface of the radio frequency antenna near the side of the person to be measured is flush with the target surface, the target surface includes the first surface or the second surface, and the maximum value of the radio frequency antenna when it is not in contact with the skin of the person to be measured is The optimal resonance frequency point is different from the optimal resonance frequency point of the radio frequency antenna when it contacts the skin of the person to be tested; the signal receiving circuit is at least used to obtain the second radio frequency signal, and the second radio frequency signal includes the radio frequency signal not radiated by the radio frequency antenna in the first radio frequency signal signal, and send the second radio frequency signal to the processor in the wearable device; wherein, the processor is used to determine the blood glucose detection result according to the first radio frequency signal and the second radio frequency signal.

In this way, in the process of detecting blood sugar, the signal generation and transmission circuit can generate a radio frequency signal, and the radio frequency antenna can radiate a part of the radio frequency signal generated by the signal generation and transmission circuit to the outside of the radio frequency antenna. The radio frequency signal radiated by the antenna and generated by the signal generation and transmission circuit, and the obtained radio frequency signal is sent to the processor, and then the processor can compare the radio frequency signal generated by the signal generation and transmission circuit and the radio frequency signal sent by the signal receiving circuit The difference between them determines the blood glucose concentration of the person to be tested, and obtains the blood glucose test result.

In a possible implementation manner, the processor is further configured to send instruction information to the signal generation and transmission circuit when the first parameter reaches a preset value, where the instruction information is used to instruct the signal generation and transmission circuit to generate multiple radio frequencies of different frequencies Signal. In this way, when the deformation of the deformation component reaches the preset value, the signal generation and transmission circuit in the blood glucose detection component is instructed to generate radio frequency signals of various frequencies, thereby ensuring that the detection conditions are consistent every time and improving the detection accuracy.

In a possible implementation manner, the deformation component includes: an inflatable deformation part, an inflatable part and a pressure detection part. Wherein, the inflatable deformable part is arranged on the side of the flexible fixing belt and away from the display screen, and is connected with the main body of the device, and the inflatable deformable part has a gas accommodation space; the inflatable part is arranged in the main body of the device, and is connected with the wearable device The processor in the device is connected to provide an air source for the inflatable deformable part; the pressure detection part is arranged in the main body of the device and connected to the processor for detecting the pressure in the inflatable deformable part.

In this way, during the blood sugar detection process, the inflatable part can fill the inflatable deformable part with gas under the control of the processor based on the pressure detected by the pressure detection part, thereby reducing the distance between the second surface on the flexible fixing belt and the person to be tested. The distance between the skin, and/or, reduce the distance between the first surface of the device main body and the skin of the person to be tested, so as to ensure that when the detection conditions are consistent each time, the blood glucose detection component on it is activated again to generate Detect the radio frequency signal of blood sugar, and finally get the blood sugar test result.

In a possible implementation manner, the length of the inflatable deformable part on the flexible fixing belt is greater than a preset distance. In this way, after the inflatable deformable part is deformed, the radio frequency filter or the radio frequency antenna in the blood glucose detection component can be closely attached to the skin of the person to be tested, thereby improving the detection accuracy.

In a possible implementation manner, a gas chamber is disposed in the main body of the device, and the gas chamber communicates with the inflatable deformable part, the inflatable part and the pressure detection part respectively. In this way, the pressure in the inflatable deformable part can be detected to the pressure detecting part, and the inflatable part can be filled with gas into the inflatable deformable part.

In a possible implementation, the inflatable deformable part is provided with a connecting part, and the connecting part is provided with a through hole, which connects the gas storage space in the inflatable deformable part with the outside of the inflatable deformable part; There is a connection hole matched with the connection part, and the connection hole communicates with the outside of the gas chamber and the main body of the device. In this way, when assembling, it only needs to insert the connecting part on the inflatable deformable part into the connecting hole matched with the connecting part on the device main body, which reduces the difficulty of assembling and improves the assembling efficiency.

In a possible implementation manner, the processor is at least configured to: when the pressure value fed back by the pressure detection part does not reach a preset pressure value, control the inflatable part to fill the inflatable deformable part with gas, wherein the pressure detection part feeds back The pressure value is used to characterize the amount of deformation produced by the deformation component; or, when the pressure value fed back by the pressure detection part reaches the preset pressure value, the inflatable part is controlled to stop filling the inflatable deformable part with gas, and/or, the control The blood glucose detection component generates radio frequency signals. In this way, it is ensured that the detection conditions are consistent each time, and the detection accuracy is improved.

In a possible implementation manner, the deformation assembly may include: a rack belt, a gear and a driving device. Wherein, the rack belt is arranged on the flexible fixing belt; the gear is arranged in the fastening cover on the flexible fixing belt; the driving device is arranged in the main body of the device or in the fastening cover, and is connected with the gear and the processor in the wearable device , used to drive the gear to rotate to drive the rack belt to move.

In a possible implementation manner, a pressure sensor is provided on the first surface and/or the second surface; the processor is at least used for: when the pressure value detected by the pressure sensor does not reach the preset pressure value, control the driving device to drive The gear rotates, wherein the pressure value detected by the pressure sensor is used to represent the deformation amount of the deformation component; or, when the pressure value detected by the pressure sensor reaches a preset pressure value, the control drive device stops driving the gear to rotate, and/or Or, control the blood glucose detection component to generate a radio frequency signal. In this way, it is ensured that the detection conditions are consistent each time, and the detection accuracy is improved.

In a possible implementation manner, the deformation component may include: memory metal. The memory metal can be arranged on the flexible fixing belt and electrically connected with the processor in the wearable device, wherein the deformation direction of the memory metal can be a direction away from the display screen.

In a possible implementation, a pressure sensor is arranged on the first surface and/or the second surface; the processor is at least used for: when the pressure value detected by the pressure sensor does not reach the preset pressure value, supply power to the memory metal , wherein the pressure value detected by the pressure sensor is used to characterize the amount of deformation of the deformation component; or, when the pressure value detected by the pressure sensor reaches a preset pressure value, stop supplying power to the memory metal, and/or control blood sugar The detection component generates a radio frequency signal. In this way, it is ensured that the detection conditions are consistent each time, and the detection accuracy is improved.

In a possible implementation manner, the wearable device may further include: a heart rate detection module. Among them, the heart rate detection module can be used to detect the heart rate of the person to be tested; the processor on the wearable device can be used to control the deformation of the deformation component when the heart rate detected by the heart rate detection module is within a preset range, and control The blood glucose detection component generates a radio frequency signal for detecting blood glucose. In this way, during the blood sugar detection process, when the heart rate of the person to be tested is detected to be within the preset range, the blood sugar detection is restarted, thereby improving the accuracy of the blood sugar detection.

In a possible implementation manner, the wearable device includes a watch or a bracelet.

In the second aspect, the present application provides a physiological parameter detection method, which is applied to a wearable device. The wearable device includes a device body, a flexible fixing belt, a blood glucose detection component and a deformation component. The flexible fixing belt is connected to both ends of the device body. At least part of the components on the blood glucose detection component are located on the first surface of the device body or the second surface of the flexible fixing belt. The first surface is the surface of the device body on the side away from the display screen on the device body, and the second surface is On the surface of the side of the flexible fixing belt that is away from the display screen, at least part of the deformation components are arranged on the flexible fixing belt. The method may include: in response to the detected first operation, controlling the deformation component to deform so that the device body and/or the flexible fixing belt are in close contact with the skin of the person to be tested; determining a first parameter, the first parameter is used to characterize the deformation component The amount of deformation generated; when the deformation value of the first parameter reaches a preset value, the signal generation and transmission circuit in the blood glucose detection component is controlled to generate a first radio frequency signal, and the first radio frequency signal includes a plurality of signals of different frequencies. In this way, in the process of detecting blood sugar, the wearable device can ensure that the detection conditions are consistent every time through the deformation component on it, and then start the blood sugar detection component on it to generate a radio frequency signal for detecting blood sugar, and finally obtain the blood sugar detection result. As a result, the detection conditions for each detection of blood glucose are consistent, thereby improving the accuracy of blood glucose detection, so that the wearable device can be used to accurately and conveniently detect the blood glucose of the person to be tested. Exemplarily, the first operation may be a blood glucose detection instruction issued by the person to be tested.

In a possible implementation, the method further includes: acquiring a second radio frequency signal sent by the signal receiving circuit in the blood glucose detection component, and the second radio frequency signal selects the first radio frequency signal through a radio frequency filter or a radio frequency antenna in the blood glucose detection component. The second radio frequency signal includes a signal of at least one frequency; according to the first radio frequency signal and the second radio frequency signal, the blood glucose of the person to be tested is determined, and the blood glucose detection result is output. Thus, according to the difference between the two radio frequency signals, the blood glucose concentration of the person to be tested is determined, and then the blood glucose detection result is obtained.

In a possible implementation, the best resonant frequency point of the radio frequency filter or the radio frequency antenna is the first frequency point when it is not in contact with the skin of the person to be tested, and when the radio frequency filter or the radio frequency antenna is in contact with the skin of the person to be tested The best resonant frequency point of is the second frequency point, and the first frequency point is different from the second frequency point.

In a possible implementation manner, before controlling the deformation of the deformation component, it further includes: determining that the heart rate of the person to be tested detected by the heart rate detection module on the wearable device is within a preset heart rate range. In this way, during the blood glucose detection process, when it is detected that the heart rate of the person to be tested is within the preset range, the blood glucose detection is restarted, thereby improving the accuracy of the blood glucose detection.

Description of drawings

FIG. 1 is a schematic structural diagram of a wearable device provided by an embodiment of the present application;

FIG. 2 is a schematic structural diagram of the device body of the wearable device shown in FIG. 1;

Fig. 3a is a schematic structural diagram of a blood glucose detection component provided by an embodiment of the present application;

Fig. 3b is a schematic structural diagram of another blood glucose detection component provided by the embodiment of the present application;

Fig. 4 is a mapping relationship between the frequency points of the best transmission characteristics and the glucose concentration in a frequency response curve provided by the embodiment of the present application;

Fig. 5a is a schematic structural view of an inflatable deformable part on a wearable device provided by an embodiment of the present application;

Fig. 5b is a schematic top view of the inflatable deformable part on the wearable device shown in Fig. 5a;

Fig. 6 is a schematic structural diagram of a device body on a wearable device provided in an embodiment of the present application;

Fig. 7 is a schematic structural diagram of a pressure plate in the main body of a wearable device provided by an embodiment of the present application;

Fig. 8 is a schematic diagram of a blood glucose detection process provided by the embodiment of the present application;

Fig. 9 is a schematic diagram of another blood sugar detection process provided by the embodiment of the present application;

Fig. 10a is a schematic structural diagram of another deformation component on a wearable device provided by an embodiment of the present application;

Fig. 10b is a schematic top view of the deformation component on the wearable device shown in Fig. 10a;

Fig. 11 is a schematic structural diagram of another deformation component on a wearable device provided by an embodiment of the present application.

In the picture:

1-device main body; 2-flexible fixing belt; 4-processor; 6-gas chamber;

11-connection hole; 12-installation space; 13-pressure plate; 131-moving buckle; 132-fixed buckle; 133-moving part; 134-first installation groove; 135-first elastic component; 136-second installation Groove; 137-the second elastic component; 1341-the outer edge of the first mounting groove;

21-the first fixing belt; 22-the second fixing belt; 23-fastening cover;

311(321)-signal generating and sending circuit; 312-radio frequency filter; 313(323)-signal receiving circuit; 322-radio frequency antenna;

51-inflatable deformation part; 52-inflatable part; 53-pressure detection part; 511-connection part; 512-through hole; 513-sealing ring;

71-first pipeline; 72-second pipeline; 711-valve;

81-rack belt; 82-gear;

91 - memory metal.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings.

The terms used in the following examples are for the purpose of describing particular examples only, and are not intended to limit the application. As used in the specification and appended claims of this application, the singular expressions "a", "an", "said", "above", "the" and "this" are intended to also Expressions such as "one or more" are included unless the context clearly dictates otherwise. It should also be understood that in the following embodiments of the present application, "at least one" and "one or more" refer to one or more than two (including two). The term "and/or" is used to describe the relationship between associated objects, indicating that there may be three relationships; for example, A and/or B may indicate: A exists alone, A and B exist at the same time, and B exists alone, Wherein A and B can be singular or plural. The character "/" generally indicates that the contextual objects are an "or" relationship.

Reference to "one embodiment" or "some embodiments" or the like in this specification means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in other embodiments," etc. in various places in this specification are not necessarily All refer to the same embodiment, but mean "one or more but not all embodiments" unless specifically stated otherwise. The terms "including", "comprising", "having" and variations thereof mean "including but not limited to", unless specifically stated otherwise. The term "connected" includes both direct and indirect connections, unless otherwise stated.

Hereinafter, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features.

In the embodiments of the present application, words such as "exemplarily" or "for example" are used as examples, illustrations or descriptions. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present application shall not be interpreted as being more preferred or more advantageous than other embodiments or design solutions. Rather, the use of words such as "exemplarily" or "for example" is intended to present related concepts in a concrete manner.

Embodiments of the present application provide a physiological parameter detection method and a wearable device, wherein the wearable device can detect blood sugar of a user. Exemplarily, the wearable device includes, but is not limited to, electronic devices such as watches and bracelets.

Exemplarily, FIG. 1 shows a schematic structural diagram of a wearable device provided by an embodiment of the present application, and FIG. 2 shows a schematic structural diagram of a device body on a wearable device provided by an embodiment of the present application. As shown in FIGS. 1 and 2 , the wearable device 100 includes: a device body 1 , a flexible fixing belt 2 connected to both ends of the device body 1 , a blood glucose detection device, and a processor 4 . Wherein, the side of the device body 1 where the display screen is located is the front side of the wearable device 100 , and the side of the device body 1 away from the display screen is the rear side of the wearable device 100 . The blood glucose detection device is used to detect the blood glucose of the user wearing the wearable device 100 .

It can be understood that the shape and material of the flexible fixing belt 2 are not limited in this embodiment. For example, the flexible fixing band 2 can be realized by a section of flexible strip, and the two ends of the flexible strip are respectively connected with the two ends of the device main body 1 . The flexible fixing band 2 can also be realized by two sections of flexible strips, and one end of each section of the flexible strips in the two sections of flexible strips is respectively connected to one end of the two ends of the device main body 1, and one end of each section of the flexible strips in the two sections of flexible strips The other end of each flexible strip is detachably connected to the device main body 1 through a connecting structure, for example, a buckle connection and the like. Exemplarily, the flexible fixing strap 2 can be understood as a strap that fixes the device body 1 of the wearable device 100 on the wrist, ankle or other body parts, so that the user can carry the wearable device 100 . Exemplarily, when the wearable device 100 is a watch or a wristband, the flexible fixing band 2 can be called a strap.

In addition, in the embodiment of the present application, the processor 4 can also be replaced with other components capable of implementing the functions described in the embodiment of the present application, and the replaced solution is still within the protection scope of the present application. Exemplarily, the processor 4 may be replaced by a programmable logic controller (programmable logic controller, PLC).

In one example, referring to FIGS. 1 and 2 , the blood glucose detection device may include: a blood glucose detection component and a deformation component. In one example, the deformation component can adjust the tightness of the wearable device 100 worn by the user, and can make the wearable device 100 fastened on the user's wrist, so as to improve the accuracy of blood sugar detection; After the wearable device 100 is fastened on the user's limb, it generates a radio frequency signal for detecting blood sugar. That is to say, the deformation component is used to reduce the distance between the side of the flexible fixing belt 2 close to the skin of the person to be tested and the skin of the person to be tested during the detection of the blood sugar of the person to be tested (that is, the user), and Or, reduce the distance between the rear side of the device main body and the skin of the person to be tested. In one example, the blood glucose detection component can be used to generate a radio frequency signal to detect the blood glucose of the person to be tested.

In some embodiments of the present application, Fig. 3a shows a schematic structural diagram of a blood glucose detection component provided in the embodiments of the present application. As shown in FIG. 3 a , the blood glucose detection component 3 may include: a signal generating and sending circuit 311 , a radio frequency filter 312 and a signal receiving circuit 313 .

Wherein, the signal generating and sending circuit 311 is at least used to generate multiple radio frequency signals of different frequencies according to the obtained instruction information sent by the processor 4, and feed the generated radio frequency signals into the input port of the radio frequency filter 312 (such as: Wire direct feed or electromagnetic coupling feed, etc.) to the radio frequency filter 312 . The instruction information sent by the processor 4 is used to instruct the signal generating and sending circuit 311 to generate radio frequency signals of various frequencies, and the instruction information may include frequency information, amplitude information and phase information of the radio frequency signal. Exemplarily, the processor 4 may instruct the signal generating and sending circuit 311 to generate a radio frequency signal of a frequency at a certain frequency interval within a certain frequency range. Exemplarily, the radio frequency signal generated by the signal generating and sending circuit 311 may be electromagnetic waves. Exemplarily, the frequency of the radio frequency signal generated by the signal generating and sending circuit 311 may be in the range of 1-60 gigahertz (GHz), preferably, in the range of 1-5 GHz. Exemplarily, the signal generating and sending circuit 311 may be arranged separately from the processor 4 , or may be integrated on the processor 4 .

The radio frequency filter 312 can pass specific frequency components in the radio frequency signal generated by the signal generation and transmission circuit 311, and greatly attenuate other frequency components, and the specific frequency components in the radio frequency signal are fed into by the output port of the radio frequency filter 312 (for example: wire direct connection feed-in or electromagnetic coupling feed-in, etc.) to the signal receiving circuit 313 . Wherein, when the radio frequency filter 312 is in contact with or close to the skin of the person to be tested, the dielectric constant of the skin corresponding to different glucose concentrations in the skin tissue is different, and different dielectric constants will change the resonance frequency of the radio frequency filter 312. point (for example: the best transmission frequency point or the best reflection frequency point), which makes the processing capability of the radio frequency filter 312 different for radio frequency signals of different frequencies. Therefore, when the radio frequency filter 312 contacts or is close to the skin of the person to be tested, when the glucose concentration in the subcutaneous tissue is different, the radio frequency filter 312 will generate different frequency response curves, and output radio frequency signals of different frequencies and/or amplitudes, Furthermore, the processor 4 can obtain the frequency response curve of the radio frequency filter 312 according to the difference between the radio frequency signal generated by the signal generation and the transmission circuit 311 and the radio frequency signal obtained by the signal receiving circuit 313, thereby determining the frequency response curve from the frequency response curve. Corresponding glucose concentration. Exemplarily, the processor 4 may process the radio frequency signal generated by the signal generating and transmitting circuit 311 and the radio frequency signal acquired by the signal receiving circuit 313 through a frequency response function to obtain a frequency response curve of the radio frequency filter 312 . Exemplarily, the processor 4 may combine the preset glucose concentration and the frequency response curve with the optimal signal transmission characteristics and/or reflection characteristics from the frequency range or point of the frequency response curve. Characteristic frequency ranges or mapping relationships between points to obtain glucose concentrations. Further, the processor 4 can convert the glucose concentration into the blood glucose concentration based on the preset conversion algorithm between the glucose concentration and the blood glucose concentration, and then obtain the blood glucose concentration of the person to be tested.

For the glucose concentration obtained from the frequency response curve, for example, with the reflection curve (S11) of the radio frequency filter, the frequency range of the radio frequency signal generated by the signal generation and transmission circuit 311 is 1-20 GHz, and the frequency range between adjacent radio frequency signals Take 1GHz as an example. As shown in Figure 4, the mapping relationship between the preset glucose concentration and the frequency point of the optimal signal transmission characteristic of the frequency response curve is: when the glucose concentration is a, the frequency response curve is S1, and the optimal signal transmission characteristic The frequency point is 6GHz; when the glucose concentration is b, the frequency response curve is S2, the frequency point of the best signal transmission characteristics is 8GHz; when the glucose concentration is c, the frequency response curve is S3, the frequency of the best signal transmission characteristics The point is 10GHz. Therefore, if the obtained frequency point of the best signal transmission characteristic of the frequency response curve is 8 GHz, then the glucose concentration can be determined as b.

For different glucose concentrations in the skin tissue, change the resonant frequency point of the radio frequency filter 312, for example, take the optimum transmission frequency point of the radio frequency filter 312 as an example, if the radio frequency filter 312 is not compatible with the person to be tested When the skin is in contact, the optimal transmission frequency point of the radio frequency filter 312 is 4 GHz, and the radio frequency filter 312 is in contact with the skin of the person to be tested, and when the glucose concentration in the subcutaneous tissue is a concentration a, the glucose in the skin tissue of the person to be tested is Influenced by concentration, the optimal transmission frequency point of the radio frequency filter 312 is changed from 4GHz to 6GHz. Then, when the frequency of the radio frequency signal generated by the signal generating and transmitting circuit 311 is 4 GHz and 6 GHz, and the radio frequency filter 312 is not in contact with the skin of the person to be tested, after 4 GHz and 6 GHz pass through the radio frequency filter 312, due to the radio frequency The optimal transmission frequency of the filter 312 is 4GHz, so the RF signal output by the RF filter 312 is 4GHz, and the RF signal of 6GHz is filtered by the RF filter 312 . When the frequency of the radio frequency signal generated by the signal generation and transmission circuit 311 is 4GHz and 6GHz, and the radio frequency filter 312 is in contact with the skin of the person to be tested, after the 4GHz and 6GHz pass through the radio frequency filter 312, due to the radio frequency filter 312 The optimal transmission frequency point is 6 GHz, so the radio frequency signal output by the radio frequency filter 312 is 6 GHz, and the radio frequency signal of 4 GHz is filtered by the radio frequency filter 312 .

The signal receiving circuit 313 is at least used for transmitting the radio frequency signal of at least one frequency output by the radio frequency filter 312 to the processor 4, so that the processor 4 can determine the corresponding glucose concentration. Exemplarily, the signal receiving circuit 313 may be arranged separately from the processor 4 , or may be integrated on the processor 4 .

In other embodiments of the present application, Fig. 3b shows a schematic structural diagram of another blood glucose detection component provided in the embodiments of the present application. As shown in FIG. 3 b , the blood glucose detection component 3 may include: a signal generating and sending circuit 321 , a radio frequency antenna 322 and a signal receiving circuit 323 .

Wherein, the signal generating and sending circuit 321 is at least used to generate radio frequency signals of various frequencies according to the acquired instruction information sent by the processor 4, and feed the generated radio frequency signals into the antenna port of the radio frequency antenna 322 (for example: wire direct feed or electromagnetic coupling feed, etc.) to the radio frequency antenna 322. The instruction information sent by the processor 4 is used to instruct the signal generation and sending circuit 321 to generate radio frequency signals of various frequencies, and the instruction information may include frequency information, amplitude information, and phase information of the radio frequency signal. Exemplarily, the processor 4 may instruct the signal generating and sending circuit 321 to generate a radio frequency signal of a frequency at a certain frequency interval within a certain frequency range. Exemplarily, the radio frequency signal generated by the signal generating and sending circuit 321 may be electromagnetic waves. Exemplarily, the frequency of the radio frequency signal generated by the signal generating and sending circuit 321 may be in the range of 1-60 gigahertz (GHz), preferably, in the range of 1-5 GHz. Exemplarily, the signal generating and sending circuit 321 can be arranged separately from the processor 4 , or can be integrated on the processor 4 .

The radio frequency antenna 322 can radiate or attenuate a part of the acquired signal and generate the radio frequency signal generated by the transmitting circuit 321 to the outside, and feed the remaining radio frequency signal into the antenna port of the radio frequency antenna 322 (for example: wire direct feed or electromagnetic coupling feeding, etc.) to the signal receiving circuit 323. Wherein, when the radio frequency antenna 322 is in contact with or close to the skin of the person to be tested, since the dielectric constant of the skin corresponding to different glucose concentrations in the skin tissue is different, the different dielectric constants will change the resonance frequency of the radio frequency antenna 322 (For example: the best radiation frequency point or the best reflection frequency point), so that the processing capabilities of the radio frequency antenna 322 to radio frequency signals of different frequencies are different, and then the processing capabilities of the radio frequency antenna 322 to radio frequency signals of different frequencies are different, In this way, the radio frequency signal received by the signal receiving circuit 323 is different from the radio frequency signal generated by the signal generation and transmission circuit 321, so that the processor 4 can obtain the radio frequency signal generated by the signal generation and transmission circuit 321 and the signal reception circuit 323. The difference between the radio frequency signals can obtain the frequency response curve of the radio frequency antenna 322, so that the corresponding glucose concentration can be determined from the frequency response curve. Wherein, the principle that the processor 4 determines the corresponding glucose concentration from the frequency response curve is similar to the principle that the processor 4 determines the corresponding glucose concentration from the frequency response curve of the radio frequency filter 312 described above. "Best transmission characteristics" can be replaced with "best radiation characteristics". See the above description for details, so I won't go into details here.

The signal receiving circuit 323 is at least used to receive radio frequency signals that are not radiated and/or attenuated by the radio frequency antenna 322, and transmit the received radio frequency signals to the processor 4, so that the processor 4 can determine the corresponding glucose concentration, and then determine the The blood glucose concentration of the person to be tested. Exemplarily, the signal receiving circuit 323 may be arranged separately from the processor 4 , or may be integrated on the processor 4 . Exemplarily, the signal generating and sending circuit 321 and the signal receiving circuit 323 may be integrated together, or arranged separately.

It can be understood that when the processor 4 determines the glucose concentration from the frequency response curve, if the mapping relationship between the preset glucose concentration and the frequency point of the best signal transmission characteristic of the frequency response curve does not include the currently determined For the frequency point of the best signal transmission characteristic of the frequency response curve, the glucose concentration corresponding to the frequency point of the currently determined frequency response curve of the best signal transmission characteristic can be determined by an interpolation or fitting algorithm.

It can be understood that, in the embodiment of the present application, each component included in the blood glucose detection assembly 3 can be arranged on the main body 1 of the wearable device 100, or can be arranged on the flexible fixing belt of the wearable device 100 2, part of it can also be set on the main body 1 of the wearable device 100, and the other part can be set on the flexible fixing band 2 of the wearable device 100, which can be determined according to the actual situation and is not limited here. In one example, the radio frequency filter 312 or the radio frequency antenna 322 in the blood glucose detection component 3 can be arranged on the surface of the device body 1 on the side away from the display screen on the device body 1 (hereinafter referred to as "the first surface"), Alternatively, it may be provided on the surface of the flexible fixing belt 2 on the side away from the display screen on the device main body 1 (hereinafter referred to as "the second surface"). Exemplarily, the surface of the radio frequency filter 312 or the radio frequency antenna 322 close to the skin side of the person to be tested (hereinafter referred to as "the third surface") can be flush with the target surface (such as: the first surface or the second surface); It can be higher than the target surface, that is, a protrusion can be formed between the radio frequency filter 312 or the radio frequency antenna 322 and the device main body or the flexible fixing belt, that is to say, the distance between the third surface and the surface on the side away from the target surface The distance is greater than the distance between the target surface and the surface on the side away from the target surface; it can also be lower than the target surface surface, that is, a groove can be formed between the radio frequency filter 312 or the radio frequency antenna 322 and the main body of the device or the flexible fixing belt , that is to say, the distance between the third surface and the surface on the side away from the target surface is smaller than the distance between the target surface and the surface on the side away from the target surface.

Continuing to refer to FIGS. 1 and 2 , the deformation assembly may include: an inflatable deformation part 51 , an inflatable part 52 and a pressure detection part 53 . The inflatable deformable part 51 can be arranged on the surface of the flexible fixing belt 2 and connected to the device main body 1; wherein, the inflatable deformable part 51 can also be located on the side of the flexible fixing belt 2 on the wearable device 100 close to the skin of the person to be tested On the side, the inflatable deformable part 51 has a gas containing space. The inflatable part 52 is arranged in the device main body 1 and is electrically connected with the processor 4, and is used to inflate the gas containing space in the inflatable deformable part 51 so that the side of the inflatable deformable part 51 away from the flexible fixing band 2 Move towards the side away from the flexible fixing strap 2. The pressure detection part 53 is connected to the processor 4 for detecting the pressure of the gas in the inflatable deformable part 51, and feeding back the detected pressure to the processor 4, and then the processor 4 based on the pressure signal detected by the pressure detection part 53 , control the inflatable part 52 to inflate the inflatable and deformable part 51 , or control the inflatable part 52 to stop inflating the inflatable and deformable part 51 . Exemplarily, the pressure value detected by the pressure detection unit 53 may be used to characterize the deformation amount of the deformation component. Exemplarily, the inflatable deformable part 51 may be an air bag, the inflatable part 52 may be an air pump, and the pressure detection part 53 may be a pressure sensor. In one example, the length of the inflatable deformable part 51 on the flexible fixing belt 2 may be greater than a preset distance, so that the radio frequency filter 312 or the radio frequency antenna 322 may Close to the user's skin, thereby improving the detection accuracy. Exemplarily, the preset distance may be the statistical average circumference of the wrist of an adult user. Exemplarily, the inflatable deformable part 51 may be bonded to the flexible fixing belt 2 .

In one example, with continued reference to FIGS. 1 and 2 , a gas chamber 6 is provided in the device body 1 . The inflatable part 52 communicates with the gas chamber 6 through the first pipeline 71 . The pressure detection part 53 communicates with the gas chamber 6 through the second pipeline 72 . The inflatable deformable part 51 communicates with the gas chamber 6 . Wherein, the processor 4 can control the inflatable part 52 to work. Next, the inflatable part 52 can fill the gas chamber 6 with gas through the first pipeline 71 . Afterwards, the gas in the gas chamber 6 can enter into the inflatable deformable part 51 , thereby making the inflatable deformable part 51 deform. At the same time, a part of the gas in the gas chamber 6 can flow into the second pipeline 72 , so that the pressure detection part 53 can detect the pressure of the gas filled in the inflatable deformable part 51 .

In one example, referring to FIGS. 1 and 2 , in order to prevent the gas in the gas chamber 6 from flowing backward, a valve 711 may be provided on the first pipeline 71 . The valve 711 can be connected with the processor 4 . Wherein, the processor 4 can control and close the valve 711 after the pressure detected by the pressure detection part 53 reaches a certain pressure value, so as to avoid the backflow of the gas in the gas chamber 6, so as to maintain the constant pressure in the gas chamber 6, and then Keep the pressure in the inflatable deformable part 51 constant, or, before the pressure detected by the pressure detection part 53 reaches a certain pressure value, control and open the valve 711, so as to fill the gas chamber 6 with gas, and then to the inflatable deformable Part 51 is filled with gas.

In one example, please refer to Fig. 5a, 5b and Fig. 6, wherein Fig. 5a is a schematic structural diagram of an inflatable deformable part 51 on a wearable device 100 provided by an embodiment of the present application; FIG. 6 is a schematic top view of the inflatable deformable part 51 on the wearable device 100 shown; FIG. 6 is a schematic structural view of the device body 1 on the wearable device 100 provided by the embodiment of the present application. As shown in FIG. 5 a , FIG. 5 b and FIG. 6 , a connecting portion 511 may be provided on the inflatable deformable portion 51 . The connection part 511 is used to connect with the device main body 1 . A connection hole 11 for matching with the connection part 511 may be provided on the device main body 1 . The connection hole 11 can communicate with the gas chamber 6 . A through hole 512 may be provided inside the connection part 511 . The through hole 512 can communicate with the inside of the gas chamber 6 and the inflatable deformable part 51 , so that the gas in the gas chamber 6 can enter the inflatable deformable part 51 through the through hole 512 . Wherein, when installing the inflatable deformable part 51 on the device main body 1 , it is sufficient to insert the connection part 511 on the inflatable deformable part 51 into the connection hole 11 on the device main body 1 . In addition, in order to improve the sealing performance between the connecting portion 511 and the connecting hole 11 on the device main body, a sealing ring 513 may be provided on the connecting portion 511 .

In addition, referring to FIG. 6 , an installation groove 12 for installing the inflatable deformable part 51 may be provided on the device main body 1 . The connection hole 11 may be located in the installation groove 12 . Wherein, when the inflatable deformable part 51 is connected to the device main body 1 , the inflatable deformable part 51 can be placed in the installation groove 12 and the connecting part 511 can be inserted into the connecting hole 11 .

Further, continue to refer to FIG. 1 , FIG. 2 and FIG. 6 , and refer to FIG. 7 , wherein FIG. 7 is a schematic structural diagram of a pressure plate in the device body 1 of a wearable device 100 provided in an embodiment of the present application. As shown in FIG. 1 , FIG. 2 , FIG. 6 and FIG. 7 , in order to fasten the inflatable deformable part 51 on the device main body 1 , a pressing plate 13 may also be provided on the device main body 1 . The pressing plate 13 can detachably fix the inflatable deformable part 51 in the installation groove 12 .

Continuing to refer to FIG. 7 , the pressing plate 13 may include a moving buckle 131 , a fixing buckle 132 and a moving part 133 . Wherein, the moving part 133 is located in the first installation groove 134 and is fixedly connected with the moving buckle 131 . When the moving part 133 moves in the first installation groove 134 , it can drive the moving buckle 131 into the first installation groove 134 , or move to the outside of the first installation groove 134 . Wherein, the first installation groove 134 can be used to make the moving part 133 move on the length direction (x direction in the figure) of the pressure plate 13, that is, to make the moving part 133 move in the direction of the moving buckle 131 towards the fixed buckle 132. move up. In addition, on the side wall of the installation space 12 on the main body 1 of the device, a slot (not shown in the figure) that cooperates with the mobile buckle 131 and a slot (not shown in the figure) that cooperates with the fixed buckle 132 are provided. ).

When installing the pressing plate 13, the fixing buckle 132 can be put into the matching slot first. Then, the moving part 133 is controlled to move toward the side of the fixing buckle 132 , so that the moving buckle 131 at least partially enters the first installation groove 134 . After all the pressing plate 13 is placed in the installation space 12, the moving part 133 is controlled to move toward the side away from the fixed buckle 132, and then the moving buckle 131 is driven to enter the matching slot, and the installation of the pressing plate 13 can be completed. Work.

Exemplarily, continuing to refer to FIG. 7 , at least one first elastic component 135 may be provided inside the pressing plate 13 . The first elastic component 135 can press the moving part 133 in a natural state, so that the moving buckle 131 can be located outside the first installation groove 134 . When the moving part 133 is controlled to move toward the side of the fixing buckle 132 , the moving part 133 can press the first elastic component 135 . Exemplarily, the first elastic component 135 may be a spring. In addition, a connecting rod 1331 may be provided on the moving part 133 , one end of the connecting rod 1331 is fixedly connected to the moving part 133 , and the other end is connected to the first elastic component 135 .

In one example, the main body 1 of the wearable device 100 may also be provided with a heart rate detection module (not shown in the figure). The heart rate detection module can use photoplethysmography (photoplethysmograph, PPG) to measure the user's heart rate. Generally, when the blood sugar is high or low, the heart rate tends to be faster, so when the heart rate is faster, the accuracy of the detected blood sugar is lower, so when detecting blood sugar, the heart rate detection module can be used to detect the user's Heart rate, when the detected heart rate is within the preset range, blood sugar detection is started again, thereby improving the accuracy of blood sugar detection.

The above is the relevant introduction to the wearable device 100 provided in the embodiment of the present application. Based on the content described above, the process of using the above-mentioned wearable device 100 to detect blood sugar will be introduced below.

Exemplarily, Fig. 8 shows a schematic diagram of a blood glucose detection process. It can be understood that the blood glucose detection process in FIG. 8 is a process of detecting blood glucose using the wearable device 100 shown in FIG. 1 . Among them, the wearable device 100 shown in FIG. 1 may be provided with applications related to blood sugar detection, such as Huawei Sports Health and the like. As shown in Figure 8, the blood glucose detection process may include the following steps:

S101. The processor acquires a blood glucose detection instruction issued by a user.

Specifically, the user may choose to perform blood glucose detection in an application related to blood glucose detection on the wearable device 100 . After the user chooses to perform blood glucose detection, the processor on the wearable device 100 can acquire the blood glucose detection instruction issued by the user.

S102. The processor acquires the first pressure value detected by the pressure detection unit.

Specifically, after the processor acquires the blood glucose detection instruction, the processor may acquire the first pressure value detected by the pressure detection unit on the wearable device 100 . Exemplarily, the pressure detection unit may detect the pressure value in the gas chamber on the wearable device 100 in real time or periodically, and feed back the detected pressure value to the processor.

In an example, after the processor acquires the blood glucose detection instruction issued by the user, it can send the pressure detection instruction to the pressure detection part, so that the pressure detection part detects the pressure value in the gas chamber on the wearable device 100, and the The pressure value is sent to the processor, so that the processor acquires the pressure value detected by the pressure detection unit.

S103. The processor judges whether the first pressure value reaches a first preset threshold.

Specifically, after the processor acquires the first pressure value, the processor may compare the first pressure value with a first preset threshold to determine whether the first pressure value reaches the first preset threshold. Wherein, when the first pressure value reaches the first preset threshold, S104 is executed; otherwise, S105 is executed.

It can be understood that the first preset threshold may be a pressure value required for detecting blood sugar. Wherein, the first preset threshold can be preset. When the first pressure value reaches the first preset threshold, it indicates that the blood glucose detection condition is currently met, so blood glucose detection can be performed at this time, that is, S104 is executed. When the first pressure value does not reach the first preset threshold, it indicates that the blood glucose detection condition has not been reached at present, so at this time, the inflatable part in the wearable device 100 can be controlled to fill the inflatable deformable part with gas, that is, execute S105, further making the first pressure value detected by the pressure detection unit reach a first preset threshold.

In an example, the first pressure value reaching the first preset threshold may be that the first threshold is greater than or equal to the first preset threshold.

S104. The processor controls the blood glucose detection component to work, records the data of the radio frequency signal fed back by the signal receiving circuit in the blood glucose detection component, and outputs the blood glucose detection result.

Specifically, after the processor judges that the first pressure value reaches the first preset threshold, the processor can control the blood glucose detection component to work, record the data of the radio frequency signal fed back by the signal receiving circuit in the blood glucose detection component, and output the blood glucose detection result .

Exemplarily, the processor may control the signal generation and transmission circuit in the blood glucose detection component to generate a radio frequency signal. Next, the signal generating and sending circuit transmits the generated radio frequency signal to a radio frequency filter or a radio frequency antenna. Afterwards, the radio frequency filter transmits the radio frequency signal after its frequency selection to the signal receiving circuit, or the signal receiving circuit acquires the radio frequency signal not radiated by the radio frequency antenna. Finally, the signal receiving circuit transmits the received radio frequency signal to the processor. After the processor acquires the radio frequency signal transmitted by the signal receiving circuit, it can determine the blood sugar concentration of the user based on the radio frequency signal, and then output the blood sugar detection result.

Exemplarily, the processor may send the determined blood glucose detection result to the display screen on the wearable device 100, and then be displayed by the display screen. In addition, the processor may also send the determined blood glucose detection result to the audio module on the wearable device 100, and then play the blood glucose detection result through the audio module.

S105. The processor controls the inflatable part in the deformable component to work, so as to fill the inflatable deformable part with gas.

Specifically, after the processor determines that the first pressure value has not reached the first preset threshold, the processor may control the operation of the inflatable part in the deformable component, so as to fill the inflatable deformable part with gas, so that the inflatable deformable part deformation, so that the pressure value detected by the pressure detection part reaches the first preset threshold.

S106. The pressure detection part monitors the pressure in real time, and feeds back the second pressure value monitored in real time to the processor.

Specifically, during the working process of the inflatable part, the pressure detection part can monitor the pressure in real time, and feed back the second pressure value monitored in real time to the processor.

S107. The processor judges whether the second pressure value reaches the first preset threshold.

Specifically, after the processor acquires the second pressure value, the processor may compare the second pressure value with the first preset threshold to determine whether the second pressure value reaches the first preset threshold. Wherein, when the second pressure value reaches the first preset threshold, it indicates that the blood glucose detection condition has been met, and at this time, S104 is executed; otherwise, S105 is executed.

In one example, after the blood glucose detection is completed, the processor can deflate the inflatable part in the deformable component on the wearable device 100. For example, continue to refer to FIGS. Avoid continuous close contact of the flexible fixing strap on the wearable device 100 with the user's body.

Exemplarily, Fig. 9 shows a schematic diagram of another blood glucose detection process. It can be understood that the blood sugar detection process in FIG. 9 is a process of using the wearable device 100 shown in FIG. 1 to detect blood sugar. Among them, the wearable device 100 shown in FIG. 1 may be provided with applications related to blood sugar detection, such as Huawei Sports Health and the like. The main difference between the blood sugar detection process shown in Figure 9 and the detection process shown in Figure 8 is that only one blood sugar detection is performed in Figure 8; The obtained result is the final blood sugar test result, so that the accuracy of blood sugar test can be improved through multiple tests. As shown in Figure 9, the blood glucose detection process may include the following steps:

S201. The processor acquires a blood glucose detection instruction issued by a user.

S202. The processor acquires the first pressure value detected by the pressure detection unit.

S203. The processor judges whether the first pressure value reaches a first preset threshold.

Specifically, after the processor acquires the first pressure value, the processor may compare the first pressure value with a first preset threshold to determine whether the first pressure value reaches the first preset threshold. Wherein, when the first pressure value reaches the first preset threshold, execute S204; otherwise, execute S205.

It can be understood that the first preset threshold may be a pressure value required for detecting blood sugar. Wherein, the first preset threshold can be preset. When the first pressure value reaches the first preset threshold, it indicates that the blood glucose detection condition is currently met, so blood glucose detection can be performed at this time, that is, S204 is executed. When the first pressure value does not reach the first preset threshold, it indicates that the blood glucose detection condition has not been reached at present, so at this time, the inflatable part in the wearable device 100 can be controlled to fill the inflatable deformable part with gas, that is, execute S205, further making the first pressure value detected by the pressure detection unit reach a first preset threshold.

In an example, the first pressure value reaching the first preset threshold may be that the first pressure value is greater than or equal to the first preset threshold.

S204. The processor controls the blood glucose detection component to work, and records the data of the radio frequency signal fed back by the signal receiving circuit in the blood glucose detection component to obtain the first glucose concentration value.

Specifically, after the processor determines that the first pressure value reaches the first preset threshold, the processor can control the blood glucose detection component to work, and record the data of the radio frequency signal fed back by the signal receiving circuit in the blood glucose detection component to obtain the first glucose concentration value.

Exemplarily, the processor may control the signal generation and transmission circuit in the blood glucose detection component to generate a radio frequency signal. Next, the signal generating and sending circuit transmits the generated radio frequency signal to a radio frequency filter or a radio frequency antenna. Afterwards, the radio frequency filter transmits the radio frequency signal after its frequency selection to the signal receiving circuit, or the signal receiving circuit acquires the radio frequency signal not radiated by the radio frequency antenna. Finally, the signal receiving circuit transmits the received radio frequency signal to the processor. After the processor acquires the radio frequency signal transmitted by the signal receiving circuit, it can determine the blood glucose concentration of the user based on the radio frequency signal, and then obtain the first blood glucose concentration value.

S205. The processor controls the inflatable part in the deformable component to work, so as to fill the inflatable deformable part with gas.

S206. The pressure detection part monitors the pressure in real time, and feeds back the second pressure value detected in real time to the processor.

S207. The processor judges whether the second pressure value reaches the first preset threshold.

Specifically, after the processor acquires the second pressure value, the processor may compare the second pressure value with the first preset threshold to determine whether the second pressure value reaches the first preset threshold. Wherein, when the second pressure value reaches the first preset threshold, it indicates that the blood glucose detection condition has been met, and at this time, S204 is executed; otherwise, S205 is executed.

It can be understood that in FIG. 9, after executing S204 and obtaining the first blood glucose concentration value, Sx can be executed. _In _Sx , the processor mainly controls the work of the inflatable part to operate under various preset thresholds (that is, at Under different pressure values), multiple blood glucose concentration values are detected, and n-1 blood glucose concentration values are obtained in total. For the detailed process in S _x , refer to the description in S205 to S207, and S204, and will not be repeated here.

In addition, after executing S _x , when n-1 blood glucose concentration values are obtained, S _x+1 can be executed. In S _x+1 , the processor can calculate the final blood glucose concentration value according to the n-1 blood glucose concentration values, and output the blood glucose detection result. Exemplarily, the final blood glucose concentration value may be an average value of n-1 blood glucose concentration values.

It can be understood that the value of n in FIG. 9 can be preset, for example, n can be equal to 5 or 6 and so on. In addition, since the second pressure value is used in S206, for the convenience of description, the pressure value detected by the pressure detection part in _Sx is called the nth pressure value, and the initial value of n is set to 3 . In addition, since the second pressure value is compared with the first preset threshold in S207, for the convenience of description, the nth pressure value in _Sx is compared with the (n−1)th preset threshold.

It can be known from the blood glucose detection process shown in FIG. 8 and FIG. 9 that when using the wearable device 100 shown in FIG. After that, the blood glucose detection component is started to work; and when the pressure value detected by the pressure detection unit does not reach the preset threshold, the blood glucose detection component is not started to work. In this way, it can be ensured that the detection conditions are consistent each time blood glucose is detected, thereby improving the accuracy of blood glucose detection.

The above is the introduction of a wearable device 100 provided in the embodiment of the present application and the process of detecting blood sugar by using the above wearable device 100 . It can be understood that the deformable component 5 on the wearable device 100 shown in FIG. 1 can also be replaced with other deformable structures, and the replaced structure can achieve what the deformable component 5 described above can achieve. function, and the replaced solution is still within the protection scope of the present application.

In an example, FIG. 10 a and FIG. 10 b show the structure of another deformation component on the wearable device 100 . As shown in Fig. 10a and Fig. 10b, the deformation assembly may include: a rack belt 81, a gear 82 and a driving device (not shown in the figure). Wherein, the driving device is connected with the gear 82, and the driving device can drive the gear 82 to move, and then the gear 82 drives the rack belt 81 to move. In addition, the driving device is also connected to the processor in the wearable device 100, so that the driving device can receive control instructions issued by the processor. The rack belt 81 can be set on the flexible fixing belt 2 of the wearable device 100 ; the gear 82 can be set on the fastening cover 23 on the flexible fixing belt 2 ; the driving device can be set on the fastening cover 23 . Wherein, when the flexible fixing band 2 is called a strap, the fastening cover 23 can be called a clasp. In one example, the flexible fixing belt 2 may be provided with a groove for accommodating the rack belt 81 . Exemplarily, the driving device may be a motor. Exemplarily, the rack belt 81 can be integrally formed with the flexible fixing belt 2 .

When the deformable component in the wearable device 100 is the structure shown in FIG. 10a or FIG. 10b , when performing blood sugar detection, the processor acquires a blood sugar detection instruction issued by the user, which can control the driving device to drive the gear 82 toward the tight The direction of the fixed flexible fixing belt 2 is rotated to drive the rack belt 81 to move, so that the RF filter or RF antenna in the blood glucose detection component on the wearable device 100 can be in close contact with the user's body, and then blood glucose detection is performed. After the blood glucose detection is completed, the processor can control the driving device to drive the gear 82 to rotate toward the direction of the loose flexible fixing belt 2 to drive the rack belt 81 to move, thereby preventing the flexible fixing belt 2 from continuing to be in close contact with the user's body.

In one example, a pressure sensor can be provided on the wearable device 100, for example, it is arranged on the side of the device main body 1 in contact with the skin of the person to be tested, and/or on the side of the flexible fixing belt 2 that is in contact with the skin of the person to be tested. One side of the contact, so that during the movement of the rack belt 81, the tightness between the flexible fixing belt 2 and the skin of the person to be tested can be felt. Wherein, when the pressure value detected by the pressure sensor reaches a preset value, the processor can control the driving device to stop driving the gear 82, and/or control the blood glucose detection component to work for blood glucose detection. Wherein, the pressure value detected by the pressure sensor can be used to characterize the deformation amount of the deformation component.

It can be understood that when the flexible fixing belt 2 on the wearable device 100 includes the first fixing belt 21 and the second fixing belt 22, the rack belt 81 and the gear 82 described in FIG. 10a and FIG. On the first fixed belt 21 or the second fixed belt 22, the gear strip 81 can also be located on the first fixed belt 21, and the gear 82 can be located on the second fixed belt 22, which can be determined according to the actual situation and is not limited here .

In an example, FIG. 11 shows the structure of another deformation component on the wearable device 100 . As shown in FIG. 11 , the deformation component may include: memory metal 91 . The memory metal 91 can be arranged in the flexible fixing band 2 on the wearable device 100 and electrically connected with the processor in the wearable device 100 . Among them, the processor in the wearable device 100 can provide electric energy for the memory metal 91, so that the memory metal 91 generates heat, and then the memory metal 91 is deformed, and then when the user detects blood sugar, the blood sugar detection component on the wearable device 100 The RF filter or RF antenna can be in close contact with the user's body for blood glucose detection. After the blood sugar detection is completed, the processor can stop supplying power to the memory metal 91, so that the memory metal 91 cools down, and then restores the memory metal 91 to its original state, thereby preventing the flexible fixing band 2 from continuing to be in close contact with the user's body. In one example, the deformation direction of the memory metal 91 may be to deform toward the rear side of the wearable device 100 . Exemplarily, the memory metal 91 can be bonded in the flexible fixing belt 2 .

In one example, a pressure sensor can be provided on the wearable device 100, for example, it is arranged on the side of the device main body 1 in contact with the skin of the person to be tested, and/or on the side of the flexible fixing belt 2 that is in contact with the skin of the person to be tested. One side of the contact, so that during the movement of the rack belt 81, the tightness between the flexible fixing belt 2 and the skin of the person to be tested can be felt. Wherein, when the pressure value detected by the pressure sensor reaches a preset value, the processor may stop supplying power to the memory metal 91, and/or control the blood glucose detection component to perform blood glucose detection. Wherein, the pressure value detected by the pressure sensor can be used to characterize the deformation amount of the deformation component.

It can be understood that the processor in the embodiments of the present application may be a central processing unit (central processing unit, CPU), and may also be other general processors, digital signal processors (digital signal processor, DSP), application specific integrated circuits (application specific integrated circuit, ASIC), field programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. A general-purpose processor can be a microprocessor, or any conventional processor.

The method steps in the embodiments of the present application may be implemented by means of hardware, or may be implemented by means of a processor executing software instructions. The software instructions can be composed of corresponding software modules, and the software modules can be stored in random access memory (random access memory, RAM), flash memory, read-only memory (read-only memory, ROM), programmable read-only memory (programmable rom) , PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically erasable programmable read-only memory (electrically EPROM, EEPROM), register, hard disk, mobile hard disk, CD-ROM or known in the art any other form of storage medium. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be a component of the processor. The processor and storage medium can be located in the ASIC.

In the above embodiments, all or part of them may be implemented by software, hardware, firmware or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in or transmitted via a computer-readable storage medium. The computer instructions may be transmitted from one website site, computer, server, or data center to another website site by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) , computer, server or data center for transmission. The computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrated with one or more available media. The available medium may be a magnetic medium (such as a floppy disk, a hard disk, or a magnetic tape), an optical medium (such as a DVD), or a semiconductor medium (such as a solid state disk (solid state disk, SSD)), etc.

It can be understood that the various numbers involved in the embodiments of the present application are only for convenience of description, and are not used to limit the scope of the embodiments of the present application.

Claims

A wearable device, characterized in that, comprising:

The main body of the device, the display screen is arranged on the main body of the device;

a flexible fixing strap connected to both ends of the device main body;

The blood glucose detection component is arranged on the device main body and/or the flexible fixing belt, at least part of the components on the blood glucose detection component are located on the first surface of the device main body or the second surface of the flexible fixing belt, The first surface is a surface on the side of the device main body that is away from the display screen, and the second surface is a surface on the side of the flexible fixing belt that is away from the display screen;

a deformation component, at least part of which is disposed on the flexible fixing belt, the deformation component is used to reduce the distance between the first surface of the device main body and the skin of the person to be tested, and/or Or, reducing the distance between the second surface of the flexible fixing belt on the side close to the person to be tested and the skin of the person to be tested;

Wherein, the wearable device is used to control the blood glucose detection component to generate a radio frequency signal to detect the blood glucose of the person to be tested when the first parameter reaches a preset value, wherein the first parameter is used to characterize the The deformation amount of the deformation produced by the deformation component.
The wearable device according to claim 1, wherein the blood glucose detection component comprises:

The signal generation and transmission circuit is at least used to generate a first radio frequency signal, and the first radio frequency signal includes a plurality of signals of different frequencies;

A radio frequency filter is at least used for frequency selection of the first radio frequency signal, wherein the radio frequency filter is set on the target surface, and the surface of the radio frequency filter on the side close to the person to be tested is in contact with the target surface The target surface is flush with the target surface, the target surface includes the first surface or the second surface, and the optimal resonant frequency point of the radio frequency filter when it is not in contact with the skin of the person to be tested is the same as that of the radio frequency filter The best resonant frequency point of the device when it contacts the skin of the person to be tested is different;

The signal receiving circuit is at least used to obtain the second radio frequency signal selected by the radio frequency filter, and send the second radio frequency signal to the processor in the wearable device, the second radio frequency signal includes a signal of at least one frequency;

Wherein, the processor is configured to determine the blood glucose detection result according to the first radio frequency signal and the second radio frequency signal.
The wearable device according to claim 1, wherein the blood glucose detection component comprises:

The signal generation and transmission circuit is at least used to generate a first radio frequency signal, and the first radio frequency signal includes a plurality of signals of different frequencies;

a radio frequency antenna, at least for radiating part of the first radio frequency signal to the outside of the radio frequency antenna, wherein the radio frequency antenna is set on the target surface, and the radio frequency antenna is close to the person to be tested The surface on one side is flush with the target surface, the target surface includes the first surface or the second surface, and the optimal resonant frequency point of the radio frequency antenna when it is not in contact with the skin of the person to be tested different from the optimal resonant frequency point of the RF antenna when it contacts the skin of the person to be tested;

The signal receiving circuit is at least used to acquire a second radio frequency signal, the second radio frequency signal includes a signal in the first radio frequency signal that is not radiated by the radio frequency antenna, and sends the radio frequency signal to the processor in the wearable device the second radio frequency signal;

Wherein, the processor is configured to determine the blood glucose detection result according to the first radio frequency signal and the second radio frequency signal.
The wearable device according to claim 2 or 3, wherein the processor is further configured to send indication information to the signal generating and sending circuit when the first parameter reaches a preset value, the indication The information is used to instruct the signal generation and transmission circuit to generate a plurality of radio frequency signals of different frequencies.
The wearable device according to any one of claims 1-4, wherein the deformation component comprises:

The inflatable deformable part is arranged on the side of the flexible fixing belt and away from the display screen, and is connected to the device main body, and has a gas containing space in the inflatable deformable part;

an inflatable part, arranged in the device main body, and connected to the processor in the wearable device, for providing an air source for the inflatable deformable part;

A pressure detection part is arranged in the main body of the device and connected to the processor for detecting the pressure in the inflatable deformable part.
The wearable device according to claim 5, wherein the length of the inflatable deformable part on the flexible fixing belt is greater than a preset distance.
The wearable device according to claim 5 or 6, wherein a gas chamber is provided in the device body, and the gas chamber is respectively connected to the inflatable deformable part, the inflatable part and the pressure The detection unit is connected.
The wearable device according to claim 7, wherein the inflatable deformable part is provided with a connecting part, and the connecting part is provided with a through hole, and the through hole communicates with the gas in the inflatable deformable part the receiving space and the exterior of the inflatable deformable part;

The device main body is provided with a connecting hole matched with the connecting part, and the connecting hole communicates the gas chamber and the outside of the device main body.
The wearable device according to any one of claims 5-8, wherein the processor is at least used for:

When the pressure value fed back by the pressure detection part does not reach the preset pressure value, the inflatable part is controlled to fill the inflatable deformable part with gas, wherein the pressure value fed back by the pressure detection part is used to represent the The amount of deformation produced by the deformation component;

Alternatively, when the pressure value fed back by the pressure detection part reaches the preset pressure value, the inflatable part is controlled to stop filling the inflatable deformable part with gas, and/or the blood glucose detection component is controlled to generate RF signal.
The wearable device according to any one of claims 1-4, wherein the deformation component comprises:

a rack belt arranged on the flexible fixing belt;

a gear disposed in a snap-fit cover on the flexible fixing strap;

The driving device is arranged in the main body of the device or in the fastening cover, and is connected with the gear and the processor in the wearable device, and is used to drive the gear to rotate to drive the rack belt move.
The wearable device according to claim 10, wherein a pressure sensor is arranged on the first surface and/or the second surface;

The processor is at least used for:

When the pressure value detected by the pressure sensor does not reach the preset pressure value, the driving device is controlled to drive the gear to rotate, wherein the pressure value detected by the pressure sensor is used to represent the deformation of the deformation component Deformation;

Alternatively, when the pressure value detected by the pressure sensor reaches the preset pressure value, the driving device is controlled to stop driving the gear to rotate, and/or the blood glucose detection component is controlled to generate a radio frequency signal.
The wearable device according to any one of claims 1-4, wherein the deformation component comprises:

The memory metal is arranged on the flexible fixing band and is electrically connected to the processor in the wearable device, wherein the deformation direction of the memory metal may be a direction away from the display screen.
The wearable device according to claim 12, wherein a pressure sensor is arranged on the first surface and/or the second surface;

The processor is at least used for:

When the pressure value detected by the pressure sensor does not reach a preset pressure value, power is supplied to the memory metal, wherein the pressure value detected by the pressure sensor is used to represent the deformation amount of the deformation component;

Or, when the pressure value detected by the pressure sensor reaches the preset pressure value, stop supplying power to the memory metal, and/or control the blood glucose detection component to generate a radio frequency signal.
The wearable device according to any one of claims 1-13, wherein the wearable device further comprises:

A heart rate detection module, used to detect the heart rate of the person to be tested;

The processor is configured to control the deformation component to deform when the heart rate detected by the heart rate detection module is within a preset range, and control the blood sugar detection component to generate a radio frequency signal for detecting blood sugar.
A physiological parameter detection method, characterized in that it is applied to a wearable device, the wearable device includes a device body, a flexible fixing belt, a blood sugar detection component and a deformation component, and the flexible fixing belt is connected to two ends of the device body end, at least part of the components on the blood glucose detection component are located on the first surface of the device body or the second surface of the flexible fixing belt, the first surface is the device body and the device body The surface on the side facing away from the display screen, the second surface is the surface on the side of the flexible fixing belt facing away from the display screen, at least some of the deformation components are arranged on the flexible fixing band bring;

The methods include:

In response to the detected first operation, controlling the deformation component to deform so that the device main body and/or the flexible fixing belt are in close contact with the skin of the person to be tested;

Determining a first parameter, the first parameter being used to characterize the amount of deformation generated by the deformation component;

When the deformation value of the first parameter reaches a preset value, the signal generation and transmission circuit in the blood glucose detection component is controlled to generate a first radio frequency signal, and the first radio frequency signal includes a plurality of signals of different frequencies.
The method according to claim 15, further comprising:

Obtaining the second radio frequency signal sent by the signal receiving circuit in the blood glucose detection component, the second radio frequency signal is obtained after frequency selection of the first radio frequency signal by the radio frequency filter or radio frequency antenna in the blood glucose detection component, the The second radio frequency signal includes a signal of at least one frequency;

Determine the blood glucose of the person to be tested according to the first radio frequency signal and the second radio frequency signal, and output a blood glucose detection result.
The method according to claim 15 or 16, wherein the optimal resonance frequency point of the radio frequency filter or the radio frequency antenna when not in contact with the skin of the person to be tested is the first frequency point, the The optimal resonant frequency point of the radio frequency filter or the radio frequency antenna when it contacts the skin of the person to be tested is a second frequency point, and the first frequency point is different from the second frequency point.
The method according to any one of claims 15-18, wherein, before controlling the deformation of the deformation component, further comprising:

It is determined that the heart rate of the person to be tested detected by the heart rate detection module on the wearable device is within a preset heart rate range.