WO2023036073A1

WO2023036073A1 - Wearable device

Info

Publication number: WO2023036073A1
Application number: PCT/CN2022/117001
Authority: WO
Inventors: 黄锐程
Original assignee: 维沃移动通信有限公司
Priority date: 2021-09-10
Filing date: 2022-09-05
Publication date: 2023-03-16
Also published as: CN113633291A

Abstract

A wearable device (10), which belongs to the technical field of electronic devices. The wearable device (10) comprises a charging circuit (11), a measurement circuit (12) and a potential control module (13), wherein the charging circuit (11) comprises a positive charging pin (111) and a negative charging pin (112), and the measurement circuit (12) comprises a plurality of measurement electrodes (121); the positive charging pin (111), the negative charging pin (112) and at least one measurement electrode (121) are all arranged on a first surface of the wearable device (10), and when the wearable device (10) is being worn, the first surface is in contact with the body surface of a user; and when the voltage between the positive charging pin (111) and the negative charging pin (112) is greater than a preset voltage threshold value, the potential control module (13) causes the negative charging pin (112) to be grounded, and when the voltage between the positive charging pin (111) and the negative charging pin (112) is less than the preset voltage threshold value, the potential control module (13) causes the negative charging pin (112) to be disconnected from the ground.

Description

a wearable device

Cross References to Related Applications

This application claims priority to Chinese Patent Application No. 202111062131.9 filed in China on September 10, 2021, the entire contents of which are hereby incorporated by reference.

technical field

The present application belongs to the technical field of electronic equipment, and in particular relates to a wearable equipment.

Background technique

With the development of technology, some smart devices currently on the market have the function of measuring human bioelectric signals. Whether it is measuring electrocardiogram, body fat or brain waves, etc., it is necessary to use the measuring electrode as a carrier to contact the human skin to obtain human biological signals. electric signal. Usually, for the convenience of use, such smart devices are required to be rechargeable, that is, such smart devices need to meet the needs of charging and human body electrical signal measurement at the same time, but limited by the size of the smart device, the gap between the charging electrode and the measuring electrode is usually If they are placed relatively close together, the charging electrodes may interfere with the measurement of human body electrical signals in this scenario.

Contents of the invention

The purpose of the embodiment of the present application is to provide a wearable device, which can solve the problem that in the prior art, due to the limited size of the device, the charging electrodes and the measuring electrodes are usually placed relatively close together, which causes the charging electrodes to interfere with the measurement of human body electrical signals The problem.

In the first aspect, the embodiment of the present application provides a wearable device, the wearable device includes a charging circuit, a measuring circuit and a potential control module;

The charging circuit includes a positive charging pin and a negative charging pin, and the measuring circuit includes a plurality of measuring electrodes;

The positive charging pin, the negative charging pin, and at least one of the measuring electrodes are all arranged on the first surface of the wearable device. When the wearable device is worn, the first surface and the user's body surface contact;

The potential control module is connected to the positive charging pin and the negative charging pin, and the voltage between the positive charging pin and the negative charging pin of the potential control module is greater than a preset voltage threshold control the negative charging pin to be grounded under normal circumstances, and control the negative charging pin to be disconnected from ground when the voltage between the positive charging pin and the negative charging pin is less than a preset voltage threshold.

Optionally, the potential control module includes a transistor, the first pole of the transistor is connected to the positive charging pin, the second pole of the transistor is connected to the negative charging pin, and the third pole of the transistor is connected to the negative charging pin. pole is grounded, and when the voltage between the first pole and the second pole is greater than a preset voltage threshold, the transistor is turned on, and the voltage between the first pole and the second pole is When the voltage is less than a preset voltage threshold, the transistor is turned off.

Optionally, the charging circuit further includes a charging IC, the input terminals of the charging IC are respectively connected to the positive charging pin and the negative charging pin, and the output terminals of the charging IC are connected to the battery.

Optionally, a display module is also included, the display module is connected to the measurement circuit, and the display module is used to display the measurement result according to the measurement signal of the measurement circuit, and the measurement result is an electrocardiogram, an electroencephalogram, a body Any one or more of the fat rate.

Optionally, the measurement circuit is used to collect any one or more of ECG electrical signals of the human body, brain wave signals of the human body, and body fat percentage of the human body.

Optionally, the wearable device is any one of smart watches, smart bracelets, smart glasses, and smart headphones.

Optionally, the wearable device is a smart watch or a smart bracelet, at least two of the plurality of measurement electrodes are arranged on the first surface of the wearable device, and the plurality of measurement electrodes are located on the same circumference .

Optionally, the measuring electrodes located on the first surface of the wearable device are fan-shaped.

Optionally, one of the measuring electrodes is disposed on the second surface of the wearable device, and when the wearable device is worn, the second surface does not contact the user's body surface.

Optionally, the wearable device is smart glasses, the smart glasses include two temples, the first surface is the inner surface of the temples, and the plurality of measurement electrodes are arranged on the two mirrors. inner side of the leg.

Optionally, the wearable device is a smart headset, the smart headset includes an arc-shaped headband, the first surface is the inner side of the arc-shaped headband, and the plurality of measurement electrodes are set on the inner side of the curved headband.

In the embodiment of the present application, by disconnecting the negative charging pin from the ground during the non-charging period, even if the measuring electrode of the measurement circuit is connected to the negative charging pin, normal measurement of human body bioelectrical signals can still be ensured.

Description of drawings

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

FIG. 2 is a schematic diagram of the switching logic of the transistor provided by the embodiment of the present application;

Fig. 3 is the schematic diagram of the measuring electrode that the embodiment of the present application provides;

Fig. 4 is the second structural schematic diagram of a wearable device provided by the embodiment of the present application;

FIG. 5 is a third structural schematic diagram of a wearable device provided by an embodiment of the present application.

Detailed ways

The following will clearly describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in this application belong to the protection scope of this application.

The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It should be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application can be practiced in sequences other than those illustrated or described herein, and that references to "first," "second," etc. distinguish Objects are generally of one type, and the number of objects is not limited. For example, there may be one or more first objects. In addition, "and/or" in the specification and claims means at least one of the connected objects, and the character "/" generally means that the related objects are an "or" relationship.

The wearable device provided by the embodiment of the present application will be described in detail below through specific embodiments and application scenarios with reference to the accompanying drawings.

Please refer to FIG. 1 . FIG. 1 is one of the schematic structural diagrams of a wearable device provided by an embodiment of the present application. As shown in Figure 1, the wearable device 10 in the embodiment of the present application includes a charging circuit 11, a measuring circuit 12, and a potential control module 13, wherein the charging circuit 11 includes a positive charging pin 111 and a negative charging pin 112, and the positive charging The pin 111 and the negative charging pin 112 are used to connect to an external power source, thereby charging the wearable device 10. During the charging process, the negative charging pin 112 is connected to the system ground; the measuring circuit 12 includes a plurality of measuring electrodes 121, The measurement circuit 12 can be used to measure the bioelectrical signal of the human body. During the measurement, at least part of the plurality of measurement electrodes 121 is in contact with the surface of the human body; the positive charging pin 111, the negative charging pin 112 and at least one of the measuring electrodes 121 are all arranged on the first surface of the wearable device 10, and when the wearable device 10 is worn by the user, the first surface is in contact with the user's body surface, thereby ensuring that at least part of the plurality of measurement electrodes 121 is in contact with the human body. surface contact, to realize the measurement of human body bioelectrical signals; and the potential control module 13 is connected with the positive charging pin 111 and the negative charging pin 112, and the potential control module 13 can be connected between the positive charging pin 111 and the negative charging pin 112. When the voltage between the negative charging pin 111 and the negative charging pin 112 is lower than the preset voltage threshold, the negative charging pin 112 is controlled to be grounded, and the negative charging pin 112 is controlled when the voltage between the positive charging pin 111 and the negative charging pin 112 is lower than the preset voltage threshold. disconnected from ground. Thus, when the voltage between the positive charging pin 111 and the negative charging pin 112 is greater than the preset voltage threshold, that is, when the charging circuit is in the charging state, by controlling the connection of the negative charging pin 112 to the system ground, the charging current It flows into the wearable device 10 from the positive charging pin 111, and flows out from the negative charging pin 112 back to the charger. At this time, the charging current loop is closed, and the charging function is normally realized; When the voltage between pins 112 is less than the preset voltage threshold, that is, when the charging circuit is in a non-charging state, the negative charging pin 112 is controlled to be disconnected from the ground. The short circuit will not cause the measurement electrode 121 to be connected to the system ground, thereby ensuring that the human body bioelectric signal measurement function is not disturbed. Wherein, the formation of the short circuit between the measuring electrode 121 and the negative charging pin 112 may be due to the presence of a conductive medium, such as water, sweat, etc., between the two.

In some embodiments of the present application, optionally, the potential control module 13 includes a transistor, the first pole of the transistor is connected to the positive charging pin 111, and the second pole of the transistor is connected to the negative charging pin 112. The third pole of the transistor is grounded, and when the voltage between the first pole and the second pole is greater than a preset voltage threshold, the transistor is turned on, and the first pole and the second pole When the voltage between is less than the preset voltage threshold, the transistor is turned off, thereby realizing the disconnection of the ground of the negative charge pin 112 from the ground. Wherein, optionally, the first pole is a gate, the second pole is a drain, and the third pole is a source.

In other embodiments of the present application, the charging circuit 11 also includes a charging integrated circuit (Integrated Circuit, IC), and the input terminals of the charging IC are respectively connected to the positive charging pin 111 and the negative charging pin 112, the The output end of the charging IC is connected to the battery 14, so that the battery 14 is charged by the charging IC.

Please refer to FIG. 2 . FIG. 2 is a schematic diagram of switching logic of a transistor provided in an embodiment of the present application. As shown in Figure 2, the specific working process of the transistor in the embodiment of the present application may include the following steps:

1) The transistor senses the voltage between the charging pins, that is, the voltage between the positive charging pin and the negative charging pin;

2) Judging whether the induced voltage reaches the conduction threshold of the transistor;

3) If the judgment result is yes, the transistor is turned on, the negative charging pin is shorted to the ground, skip to step 4), and in the case of no judgment, the transistor is turned off, and the negative charging pin is connected to the ground disconnect;

4) The wearable device enters the charging state.

Optionally, in some embodiments of the present application, the wearable device further includes a display module 15, the display module 15 is connected to the measurement circuit 12, and the display module 15 is used to display the measurement results according to the measurement signal collected by the measurement circuit 12, Optionally, the measurement result is any one or more of electrocardiogram, electroencephalogram, and body fat percentage. That is to say, the measurement circuit 12 collects the user's bioelectrical signal, and displays it on the display module 15 after analysis and processing, so that the user can directly view the measurement result on the wearable device.

In the embodiment of the present application, the wearable device 10 may be any one of a smart watch, a smart bracelet, smart glasses, and a smart headset. The measurement circuit 12 is used to collect any one or more of electrocardiogram (ECG) electrical signals of the human body, brain wave signals of the human body, and body fat percentage of the human body. That is to say, the measurement circuit 12 can collect the user's ECG electrical signal, brain wave signal, body fat rate signal, etc. through the measurement electrode 121 , thereby enriching the measurement function of the wearable device 10 .

As shown in Figure 1, in some embodiments of the present application, the wearable device is a smart watch or a smart bracelet, and the measuring electrode 121 located on the first surface is fan-shaped, and the fan-shaped measuring electrode 121 can be enlarged to the surface of the human body. contact area to improve measurement accuracy. Optionally, at least two of the plurality of measurement electrodes 121 are arranged on the first surface of the wearable device 10, and the plurality of measurement electrodes on the first surface are located on the same circumference, thereby reducing the uneven feeling caused by the measurement electrodes 121 .

In other embodiments of the present application, the number of measuring electrodes 121 is 3 or 5, and when the number of measuring electrodes 121 is 3, one measuring electrode 121 can be arranged on the second surface of the wearable device 10, The remaining two measurement electrodes 121 are arranged on the first surface, and can be located on the same circumference, wherein, the second surface can be the side of the wearable device 10, when the wearable device 10 is worn, the second The surface does not come into contact with the user's body surface.

As shown in FIG. 1 , when the wearable device 10 is a smart watch, a measurement electrode 121 can be made as a crown. When the number of measuring electrodes 121 is five, one measuring electrode 121 can be arranged on the second surface of the wearable device 10, while the remaining four measuring electrodes 121 are arranged on the first surface and can be located on the same circumference, At this time, the four measuring electrodes 121 located on the first surface form a quarter circle, wherein the second surface can be the side of the wearable device 10, and when the wearable device 10 is worn, the second surface is in contact with the user. The body surface does not touch.

Please refer to FIG. 3 , which is a schematic diagram of the measuring electrodes provided in the embodiment of the present application. As shown in FIG. 3 , when the wearable device 10 is a smart watch, a measurement electrode 121 can be made as a crown. When the number of measuring electrodes 121 is three, one measuring electrode 121 can be arranged on the second surface of the wearable device 10, while the remaining two measuring electrodes 121 are arranged on the first surface and can be located on the same circumference, At this time, the two measuring electrodes 121 on the first surface are in a semi-circular shape, wherein the second surface can be the side of the wearable device 10, and when the wearable device 10 is worn, the second surface is in contact with the user's Body surface does not touch.

Please refer to FIG. 4 . FIG. 4 is a second schematic structural diagram of a wearable device provided by an embodiment of the present application. As shown in Figure 4, in other embodiments of the present application, the wearable device 10 is a smart glasses, and the smart glasses include two temples, wherein the measuring electrode 121, the positive charging pin 111, and the negative charging pin 112 are set On the temple of the smart glasses, specifically the inner surface of the temple, that is, the aforementioned first surface is the inner surface of the temple, part of the measuring electrodes 121 can be set on the same side as the positive charging pin 111 and the negative charging pin 112. The rest of the measuring electrodes 121 can be arranged on the other temple; the wearable device 10 can realize the measurement of brain wave signals, and during the measurement, the measuring electrodes 121 are in contact with the surface of the human body. In this embodiment of the present application, please refer to the foregoing embodiments for other partial structures, and details are not repeated here.

Please refer to FIG. 5 . FIG. 5 is a third structural schematic diagram of a wearable device provided by an embodiment of the present application. As shown in Figure 5, in some other embodiments of the present application, the wearable device 10 is a smart headset, wherein the measuring electrode 121, the positive charging pin 111, and the negative charging pin 112 are arranged on the smart headset. On the arc-shaped headband, specifically the inner side of the headband, that is, the aforementioned first surface is the inner side of the temples. Optionally, the smart headset also includes earpieces arranged at both ends of the arc-shaped headband. Part of the measuring electrodes 121 is set close to one of the earpieces, while the remaining part is set close to the other earpiece. For example, if the number of measuring electrodes 121 is four, then two measuring electrodes 121 can be set near one of the curved headbands. The position of the earpiece, and the other two measuring electrodes 121 can be set on the position of the arc-shaped headband close to the other earpiece. The wearable device 10 can realize the measurement of the brain wave signal, and during the measurement, the measurement electrode 121 is in contact with the surface of the human body. In this embodiment of the present application, please refer to the foregoing embodiments for other partial structures, and details are not repeated here.

In short, in the embodiment of the present application, by disconnecting the negative charging pin from the ground during the non-charging period, even if the measuring electrode of the measurement circuit is connected to the negative charging pin, normal measurement of human body bioelectrical signals can still be ensured.

It should be noted that, in this document, the term "comprising", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Under the inspiration of this application, without departing from the purpose of this application and the scope of protection of the claims, many forms can also be made, all of which belong to the protection of this application.

Claims

A wearable device, including a charging circuit, a measuring circuit and a potential control module;

The charging circuit includes a positive charging pin and a negative charging pin, and the measuring circuit includes a plurality of measuring electrodes;

The positive charging pin, the negative charging pin, and at least one of the measuring electrodes are all arranged on the first surface of the wearable device. When the wearable device is worn, the first surface and the user's body surface contact;

The potential control module is connected to the positive charging pin and the negative charging pin, and the voltage between the positive charging pin and the negative charging pin of the potential control module is greater than a preset voltage threshold control the negative charging pin to be grounded under normal circumstances, and control the negative charging pin to be disconnected from ground when the voltage between the positive charging pin and the negative charging pin is less than a preset voltage threshold.
The wearable device according to claim 1, wherein the potential control module includes a transistor, the first pole of the transistor is connected to the positive charging pin, and the second pole of the transistor is connected to the negative charging pin. The pin is connected, the third pole of the transistor is grounded, and when the voltage between the first pole and the second pole is greater than a preset voltage threshold, the transistor is turned on, and the first pole and the second pole are connected to each other. When the voltage between the second electrodes is less than a preset voltage threshold, the transistor is turned off.
The wearable device according to claim 1, wherein the charging circuit further comprises a charging IC, the input terminals of the charging IC are respectively connected to the positive charging pin and the negative charging pin, and the output of the charging IC is terminal connected to the battery.
The wearable device according to claim 1, further comprising a display module, the display module is connected to the measurement circuit, and the display module is used to display the measurement result according to the measurement signal of the measurement circuit, and the measurement result is Any one or more of electrocardiogram, electroencephalogram, body fat percentage.
The wearable device according to claim 1, wherein the measurement circuit is used to collect any one or more of ECG electrical signals of the human body, brain wave signals of the human body, and body fat percentage of the human body.
The wearable device according to claim 1, wherein the wearable device is any one of smart watches, smart bracelets, smart glasses, and smart headphones.
The wearable device according to claim 6, wherein the wearable device is a smart watch or a smart bracelet, and at least two of the plurality of measurement electrodes are arranged on the first surface of the wearable device, so The plurality of measuring electrodes are located on the same circumference.
The wearable device according to claim 7, wherein the measuring electrodes on the first surface of the wearable device are fan-shaped.
The wearable device according to claim 7, wherein one of the measuring electrodes is arranged on the second surface of the wearable device, and when the wearable device is worn, the second surface is different from the user's body surface. touch.
The wearable device according to claim 6, wherein the wearable device is smart glasses, the smart glasses include two temples, the first surface is the inner side of the temples, and the plurality of The measuring electrodes are arranged on the inner surfaces of the two mirror legs.
The wearable device according to claim 6, wherein the wearable device is a smart headset, the smart headset includes an arc-shaped headband, and the first surface is an inner portion of the arc-shaped headband. On the side, the plurality of measuring electrodes are arranged on the inner side of the arc-shaped headband.