CN111387980A

CN111387980A - Electronic device, measuring method and storage medium

Info

Publication number: CN111387980A
Application number: CN202010238681.0A
Authority: CN
Inventors: 李晓
Original assignee: Chipsea Technologies Shenzhen Co Ltd
Current assignee: Chipsea Technologies Shenzhen Co Ltd
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2020-07-10

Abstract

The invention discloses an electronic device, comprising: the device comprises a shell, at least two electrodes are arranged on the shell, and the distance between every two adjacent electrodes in the at least two electrodes is smaller than a preset threshold value; the mainboard is arranged in the shell, a processor is arranged on the mainboard, and the processor is electrically connected with the at least two electrodes; the processor includes a body impedance measurement module for measuring a body impedance signal of a target object in contact with the at least two electrodes. The invention also discloses a measuring method and a storage medium. The electronic equipment can measure the physiological signals of the user under the condition that the user does not sense the physiological signals, so that the process of acquiring the physiological information of the user becomes continuous and efficient.

Description

Electronic device, measuring method and storage medium

Technical Field

The present invention relates to the field of physiological signal measurement technologies, and in particular, to an electronic device, a measurement method, and a storage medium.

Background

Currently, for big health data, it is a common practice for health management to collect physiological signals of a user through specific devices (such as a body fat scale, a bracelet, an electrocardiogram strip lamp, and the like), upload the physiological signals to a cloud, and perform modeling analysis. However, these devices are not a necessity in the daily life of the general public, and the measurement action also belongs to an additional special action, so the amount and the continuity of the collected data are often influenced by personal enthusiasm, the collection efficiency is not high, the continuity is not enough, and the subsequent modeling and application of health big data are influenced. The mobile phone is used as a necessity in life of people, the use frequency is very high, and if the mobile phone can be used as a carrier to collect physiological signals, the mobile phone is very convenient and efficient.

The prior art discloses a mobile phone for physiological signal measurement, but the mobile phone still needs to be held by both hands of a user for measurement, and cannot realize data acquisition under the condition that the user does not sense (namely, cannot realize non-sensing measurement), so that the convenience is still insufficient, and the problem is solved by the mobile phone.

Disclosure of Invention

It is an object of the present invention to overcome the above-mentioned deficiencies of the prior art and to provide an electronic device which can measure physiological signals of a user without the user's perception, thereby making the process of collecting physiological information of the user continuous and efficient.

To achieve the object of the present invention, the present invention provides an electronic device comprising:

the device comprises a shell, at least two electrodes are arranged on the shell, and the distance between every two adjacent electrodes in the at least two electrodes is smaller than a preset threshold value;

the mainboard is arranged in the shell, a processor is arranged on the mainboard, and the processor is electrically connected with the at least two electrodes;

the processor includes a body impedance measurement module for measuring a body impedance signal of a target object in contact with the at least two electrodes.

Optionally, the housing includes a middle frame and a cover plate, and the at least two electrodes are disposed on the middle frame, or the at least two electrodes are disposed on the cover plate, or the at least two electrodes are distributed on the middle frame and the cover plate.

Optionally, the middle frame comprises a plurality of end-to-end borders, the at least two electrodes comprise at least two L-shaped electrodes, and the L-shaped electrode comprises a first section and a second section, wherein the first section is arranged on the middle frame, and the second section is arranged on the cover plate, or the first section and the second section are arranged on two borders connected with the middle frame, or the first section and the second section are arranged at the corners of the cover plate along the two borders connected with the middle frame.

Optionally, the at least two electrodes further comprise at least two strip-shaped electrodes; the at least two strip electrodes are arranged on the two opposite side frames of the middle frame, or are arranged on the edge of the cover plate along the two opposite side frames of the middle frame.

Optionally, a distance between each adjacent two of the at least two electrodes is less than 15 cm.

Optionally, the distance between every two adjacent electrodes of the at least two electrodes is 0.5cm to 12 cm.

In order to achieve the second object of the present invention, the present invention further provides a physiological signal measuring method applied to the electronic device, the physiological signal measuring method including the steps of:

measuring an impedance value between at least two electrodes on the electronic device;

judging whether the impedance value is within a preset impedance value range or not;

and if the impedance value is within the preset impedance value range, continuously measuring the human body impedance signals of the target object contacted with the at least two electrodes within a preset time period.

Optionally, after the continuously measuring the human impedance signal of the target object in contact with the at least two electrodes for the preset time period, the method further includes the following steps:

and extracting the pulse signal of the target object according to the change of the human body impedance value.

Optionally, the extracting the pulse signal of the target object according to the change of the human impedance value specifically includes the following sub-steps:

sequentially carrying out noise reduction processing, compensation processing and filtering processing on the continuously measured human body impedance signals to obtain a preprocessed human body impedance waveform;

extracting wave crest information and wave trough information in the human body impedance waveform;

and acquiring the pulse signal of the target object according to the peak information and the trough information.

To achieve the third object of the present invention, the present invention also provides a computer-readable storage medium storing one or more programs, which are executable by one or more processors to implement the steps of the physiological signal measurement method as described above.

Compared with the prior art, the invention has the beneficial effects that: the electronic equipment can measure the physiological signals of the user under the condition that the user does not sense the physiological signals, so that the process of acquiring the physiological information of the user becomes continuous and efficient.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a schematic cross-sectional structural diagram of an embodiment of an electronic device of the present invention.

Fig. 2 is a schematic perspective structural view of another embodiment of the electronic device of the present invention.

Fig. 3 is a schematic diagram of a motherboard structure in the electronic device of the present invention.

Fig. 4 is a partial structural schematic diagram of another embodiment of the electronic device of the present invention.

Fig. 5 is a sectional view a-a of fig. 4.

Fig. 6 is a partial structural schematic diagram of another embodiment of the electronic device of the present invention.

FIG. 7 is a flow chart of an embodiment of a measurement method of the present invention.

Fig. 8 is a flow chart of another embodiment of a measurement method of the present invention.

Fig. 9 is a flow chart of yet another embodiment of the measurement method of the present invention.

FIG. 10 is a schematic view of an embodiment of a physiological signal measuring device of the present invention.

Fig. 11 is a schematic view of an electrode structure in the electronic device of the present invention.

Fig. 12 is a flow chart of yet another embodiment of the measurement method of the present invention.

Fig. 13 is a block diagram of a pulse signal processing module in the electronic device according to the present invention.

Reference numerals:

an electronic device 10; a housing 101; a main board 102;

a mobile phone 300;

a cell phone screen 310;

a handset housing 320;

electrode 32, electrode 321, electrode 322, electrode 323, electrode 324, L-shaped electrode 325, first section 3251, second section 3252;

conductive vias 326;

a mobile phone motherboard 330;

a processor 331; a memory 332; input-output devices 333; a body impedance measurement module 334; an electrocardiography module 335;

a noise reduction filter 3341; baseline drift compensator 3342; a high-pass filter 3343; a low-pass filter 3344; a peak and trough finder 3345; a pulse calculator 3346;

an upper frame 3401; a right frame 3402; a lower frame 3403; a left frame 3404;

a physiological signal measuring device 350; the physiological signal processing module 351.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.

Referring to fig. 1 to 3, the present invention provides an electronic device 10, including a housing 101 and a main board 102, wherein the housing 101 is mounted with at least two electrodes 32, and a distance between every two adjacent electrodes 32 of the at least two electrodes 32 is smaller than a preset threshold; the main board 102 is installed in the housing 101, a processor 331 is disposed on the main board 102, and the processor 331 is electrically connected to the at least two electrodes 32; the processor 331 includes a body impedance measuring module 334, and the body impedance measuring module 334 is configured to measure a body impedance signal of a target object in contact with the at least two electrodes 32. Since the distance between two adjacent electrodes 32 is less than a certain value, when a user holds the electronic device 10 with one hand, the user can touch at least two electrodes 32 with one hand. Specifically, the distance between each two adjacent electrodes 32 is less than the length or width of the adult palm. For example, in the present embodiment, the distance between every two adjacent electrodes 32 may be less than 20 cm. Preferably, to accommodate the palm size and gripping habits of most people, the distance between each two adjacent electrodes 32 may be less than 12cm, for example, the distance may be between 5cm and 12 cm.

The electronic equipment 10 can be held by a single hand of a user, and when the user normally uses the electronic equipment 10, even when the user uses the electronic equipment 10 by a single hand, the human body impedance of the user can be measured without the need of the user to perform deliberate operation, so that data acquisition under the condition that the user does not sense is realized, and the electronic equipment is convenient to use.

In some embodiments, the housing 101 includes a center frame and a cover plate, and the at least two electrodes 32 are both disposed on the center frame. Alternatively, the at least two electrodes 32 are both disposed on the cover plate. Alternatively, the at least two electrodes 32 are distributed on the middle frame and the cover plate, i.e. partially arranged on the middle frame and partially arranged on the cover plate. As further described below.

The electronic device 10 may be a mobile terminal such as a mobile phone 300, a tablet computer, a notebook computer, a palm computer, a Personal Digital Assistant (PDA), a Portable Media Player (PMP), a navigation device, a wearable device, an intelligent bracelet, and a pedometer. In the following description, a mobile phone will be taken as an example for explanation.

In one embodiment, as shown in fig. 2, the electronic device 10 is a mobile phone 300, and the mobile phone middle frame is provided with the electrode 32. Specifically, the electrode 32 includes an electrode 321, an electrode 322, an electrode 323, and an electrode 324. It should be clear that, the above arrangement of 4 electrodes 32 on the middle frame of the mobile phone is only an example, and 2 electrodes 32, 3 electrodes 32, or more than 4 electrodes 32 may also be arranged on the middle frame of the mobile phone. Alternatively, the at least two electrodes 32 on the mobile phone housing 320 may be disposed on the mobile phone middle frame entirely or partially.

The following describes in detail the distribution of the electrodes 32 on the middle frame of the electronic device 10.

1) When 2 electrodes 32 are disposed on the middle frame, the possible distribution of the 2 electrodes 32 is as follows: 2 electrodes 32 are arranged on the same frame; 2 electrodes 32 are arranged on two opposite borders; the 2 electrodes 32 are arranged on two borders that meet.

2) When 3 electrodes 32 are arranged on the middle frame, the following conditions are included: any two of the 3 electrodes 32 are disposed on one frame, and the remaining electrode 32 is disposed on the other frame; any two electrodes 32 of the 3 electrodes 32 are arranged on one frame, and the rest electrodes 32 are arranged on the other frame; the 3 electrodes 32 are sequentially arranged on the 3 connected frames, and each frame is provided with one electrode 32.

3) When 4 electrodes 32 are disposed on the middle frame, for convenience of description, as shown in fig. 4, four frames are respectively called an upper frame 3401, a right frame 3402, a lower frame 3403, and a left frame 3404, and the upper frame 3401, the right frame 3402, the lower frame 3403, and the left frame 3404 are sequentially connected and enclosed to form the whole middle frame of the mobile phone. The possible distributions of these 4 electrodes 32 are listed below: 4 electrodes (e.g., 321, 322, 323, 324) can be disposed on the same frame (e.g., 3401); or, any 3 electrodes (e.g., electrode 321, electrode 322, and electrode 323) in the 4 electrodes are disposed on the same frame, and the 4 th electrode (e.g., electrode 324) is disposed on the opposite frame; or, any 3 electrodes (e.g., the electrode 321, the electrode 322, and the electrode 323) in the 4 electrodes are disposed on the same frame (e.g., the upper frame 3401), and the 4 th electrode (e.g., the electrode 324) is disposed on the other frame (e.g., the right frame 3402); alternatively, any 2 electrodes (e.g., 321, 322) of the 4 electrodes are disposed on a first frame (e.g., the upper frame 3401), the 3 rd electrode (323) is disposed on a second frame (e.g., the right frame 3402), and the 4 th electrode (324) is disposed on a third frame (e.g., the lower frame 3403); alternatively, any 2 electrodes (e.g., 321, 322) of the 4 electrodes are disposed on a first frame (e.g., the top frame 3401), the 3 rd electrode (323) is disposed on a second frame (e.g., the right frame 3402), and the 4 th electrode (324) is disposed on a fourth frame (e.g., the left frame 3404); alternatively, any 2 electrodes (e.g., 321, 322) of the 4 electrodes are disposed on a first frame (e.g., the upper frame 3401), the 3 rd electrode (323) is disposed on a third frame (e.g., the lower frame 3403), and the 4 th electrode (324) is disposed on a fourth frame (e.g., the left frame 3404); alternatively, 4 electrodes (e.g., 321, 322, 323, 324)32 are sequentially disposed on four borders (e.g., the top border 3401, the right border 3402, the bottom border 3403, and the left border 3404).

4) When N (N > 3, N ∈ Z +) electrodes 32 are disposed on the middle frame, the N electrodes 32 are respectively referred to as the 1 st, 2 nd, 3 rd, 4 th, … …, k-th, … … th electrodes, several examples are given below of possible distribution of the N electrodes 32, where the N electrodes 32 are all distributed on a certain frame (e.g., the upper frame 3401), or any N-1 of the N electrodes 32 are distributed on the first frame (e.g., the upper frame 3401), the N electrodes 32 are distributed on any one of the upper frame 3401, the right frame 3402, the lower frame 3403, and the left frame 3404 (e.g., the right frame 3402), or any N-2 of the N electrodes 32 are distributed on the first frame (e.g., the upper frame 3401), the N-1 th electrodes 32 are distributed on the second frame (e.g., the right frame 3402), the N-32 are distributed on the third frame (e.g., the upper frame 3402), or the N-1 st electrodes 32 are distributed on the third frame (e.g., the upper frame 3402), and the N-1-th electrodes 32 are distributed on the common frame (e.g., the upper frame 3402), and the upper frame 3402, the right frame, the N electrodes 32, the third frame, and so on the common frame (e.g., the common frame).

Specifically, the distance between each two adjacent electrodes 32 is smaller than a first preset threshold. Wherein, the first preset threshold is smaller than the length of the middle frame. Preferably, the first predetermined distance is less than the length of a human palm, for example less than 15 cm. Alternatively, the distance between the two electrodes 32 may be a distance between center points of the two electrodes 32, or may be a minimum distance between boundary lines of the two electrodes 32.

The distance between every two adjacent electrodes 32 is smaller than the first preset threshold, so that at least 2 electrodes 32 can be contacted when the user holds the electronic device 10 with one hand.

When the user uses the electronic device 10, the frequency of holding with one hand is very high, and especially when the electronic device 10 is the mobile phone 300, the usage scenario of holding with one hand is more common. The invention can measure the human body impedance signal of the user when being held by one hand, and further can obtain the human body composition information, the heart rate signal, the pulse signal or other physiological signals according to the human body impedance signal, thereby realizing the non-inductive measurement in the true sense, and greatly improving the accuracy and the reliability of the measurement because each measurement has higher possibility of collecting 2 or more than two electrode data.

In one embodiment, taking the mobile phone 300 as an example, the at least two electrodes 32 may also be disposed on a cover plate of the mobile phone, such as a rear cover (not shown) of the mobile phone. For example, two electrodes 32 (e.g., only the electrode 321 and the electrode 322) may be disposed on the cover plate, 3 electrodes 32 (e.g., only the electrode 321, the electrode 322, and the electrode 323) may be disposed on the cover plate, and 4 (e.g., only the electrode 321, the electrode 322, the electrode 323, and the electrode 324) or more than 4 electrodes may be disposed on the cover plate. Alternatively, the at least two electrodes 32 may be disposed on the cover plate entirely or partially.

Further, the plurality of electrodes 32 disposed on the cover plate may be arranged in a line, a matrix, a triangle, a circle, a rectangle, or may be arranged in any given pattern. Taking the linear shape as an example, the distance between every two adjacent electrodes 32 is smaller than the second preset threshold. When 2 electrodes 32 (e.g., electrode 321, electrode 322) are disposed on the cover plate, the distance between the 2 electrodes 32 is smaller than the second preset threshold; when 3 electrodes 32 or more are provided on the cover plate, the distance between the two electrodes with the smallest distance is smaller than the second preset threshold.

In one embodiment, taking the mobile phone 300 as an example, a part of the electrodes 32 of the at least two electrodes 32 is disposed on the middle frame of the mobile phone, and another part of the electrodes 32 is disposed on the cover plate. Preferably, at least 2 electrodes 32 are arranged on the middle frame of the mobile phone, and at least 2 electrodes 32 are also arranged on the cover plate; moreover, as an implementation manner, a distance between every two adjacent electrodes 32 on the middle frame of the mobile phone is smaller than a first preset threshold, and a distance between every two adjacent electrodes on the cover plate is smaller than a second preset threshold. In another embodiment, the distance between the at least one electrode 32 on the middle frame and the at least one electrode 32 on the cover plate of the mobile phone is less than a third preset threshold.

It is easy to think that, in the above embodiments, the first preset threshold, the second preset threshold, and the third preset threshold may be the same or different, and the first preset threshold, the second preset threshold, and the third preset threshold may be selected according to actual situations. Preferably, the first preset threshold, the second preset threshold and the third preset threshold are all smaller than the length of the palm of the human body, for example, smaller than 15 cm.

By providing the electrodes 32 on the center frame and the cover plate, respectively, the skin of the user will more easily contact at least two electrodes when the user holds the electronic device 10 with one hand.

When the user holds the electronic device 10 with one hand, the hand of the user is curved in three-dimensional space, and multiple points of the skin of the hand of the user are in contact with multiple points on the surface of the electronic device 10. Taking the mobile phone 300 as an example: when a user holds the mobile phone 300 with one hand, the palm of the hand can contact the rear shell cover plate of the mobile phone 300, and the thenar of the large fish can contact the middle frame of the mobile phone 300. In this embodiment, the electrodes are distributed on the back cover plate and the middle frame of the mobile phone, so that the user can more easily contact with the at least two electrodes 32 when holding the mobile phone 300 with one hand, thereby greatly improving the reliability and stability of the measurement.

In one embodiment, as shown in fig. 4, the cell phone middle frame of the cell phone 300 includes a plurality of frames (e.g., an upper frame 3401, a right frame 3402, a lower frame 3403, and a left frame 3404) connected end to end, the at least two electrodes 32 include at least two L-shaped electrodes 325, and the L-shaped electrodes 325 include a first section 3251 and a second section 3252, wherein the first section 3251 is disposed on the middle frame, and the second section 3252 is disposed on the cover plate (as shown in fig. 4 and 5), or the first section 3251 and the second section 3252 are disposed on two frames connected to the middle frame (as shown in fig. 6), or the first section 3251 and the second section 3252 are disposed at two frames connected to the middle frame along the two frames (not shown), so that the cell phone 300 is described further below.

Assuming that the side where the mobile phone screen 310 is located is a front side, and the side where the back shell of the mobile phone 300 is located is a back side, the middle frame of the mobile phone includes an upper frame 3401, a right frame 3402, a lower frame 3403, and a left frame 3404 which are connected end to end, when a user holds the mobile phone 300 with one hand, the shape of the electrode 32 is improved to increase the chance that the user contacts the electrode.

The L-shaped electrode 325 is more easily directly accessible to a user when holding the cell phone 300 in one hand, and positioning the electrode 32 in the L shape greatly increases the chance that the electrode 32 will come into contact with the user.

Further, the at least two electrodes 32 further include at least two strip-shaped electrodes; the at least two strip electrodes are arranged on two opposite side frames of the mobile phone middle frame, or are arranged at the edge of the cover plate along the two opposite side frames of the mobile phone middle frame. For example: two strip electrodes are provided on the upper frame 3401 and the lower frame 3403, respectively, or two strip electrodes are provided on the left frame 3404 and the right frame 3402, respectively, and so on.

Further, a distance between each adjacent two electrodes 32 of the at least two electrodes 32 is less than 15 cm. That is, the first preset threshold and the second preset threshold are selected from the range of less than or equal to 15 cm.

Further, the distance between every two adjacent electrodes 32 of the at least two electrodes 32 is 0.5cm to 12 cm. That is, the first preset threshold and the second preset threshold are between 0.5cm and 12cm, and may be two boundary values of 0.5cm and 12 cm. For example, any one of the above preset threshold values may be any one of 12cm, 11cm, 10cm, 9cm, 8cm, 7cm, 6cm, 5cm, 4cm, 3cm, 2cm, 1cm, and 0.5 cm.

Please refer to fig. 7. The present invention further provides a physiological signal measuring method applied to the electronic device 10, including the following steps:

s101, measuring impedance values between at least two electrodes 32 on the electronic equipment 10.

The impedance value between the at least two electrodes 32 is the human body impedance value of the user currently contacting the electronic device 10. Specifically, when the electronic device 10 is held in a hand of a user, the impedance value is an impedance value of the hand of the user.

Specifically, at least two electrodes 32 in the electronic device 10 are respectively in contact with the skin of the human body. The electronic device 10 is internally provided with an impedance measuring circuit, which injects an excitation current into a human body through at least two electrodes 32, and collects a voltage signal generated by the excitation current on the skin of the human body through the at least two electrodes 32, so as to calculate a human body impedance value according to the voltage signal.

S102, judging whether the impedance value is in a preset impedance value range.

The preset impedance value range is the impedance value range of the human hand under normal conditions, and can be stored in the terminal memory in advance, acquired by reading the local memory, or acquired from an external device or a server through a network.

When the impedance value is within the preset impedance value range, the currently detected impedance value is the impedance value of the human body, and the object contacted by the current electrode is the human body. When the impedance value is not within the preset impedance range, it indicates that the object currently contacted by the electrode is not a human body, and the detected impedance value may be caused by misoperation.

And S103, if the impedance value is within the preset impedance value range, continuously measuring the human body impedance signals of the target object contacted with the at least two electrodes 32 within a preset time period.

In this embodiment, the detected impedance value is compared with a preset normal human body impedance value range to determine whether the currently contacted object is a human body, thereby avoiding misoperation. Moreover, when the current contact object is judged to be a human body, the measurement is automatically started, extra specific operation is not needed by a user, real non-inductive measurement is realized, and the user experience is improved. On the other hand, when it is determined that the present contact object is not a human body, the measurement may not be started to reduce the power consumption of the electronic apparatus 10.

In one embodiment, referring to fig. 8, after the step of continuously measuring the body impedance signal of the target object in contact with the at least two electrodes 32 for the preset time period, the physiological signal measuring method further includes the following steps:

and S104, extracting the pulse signal of the target object according to the change of the human body impedance value.

It should be noted that steps S101 to S104 implement a pulse signal measurement method. For measuring other physiological signals, step S104 may also be replaced by the following steps: and extracting the physiological signal of the target object according to the change of the human body impedance value.

In one embodiment, referring to fig. 9, before the step S101, the method for measuring physiological signals further includes the following steps:

s100, judging whether the electronic equipment 10 is in a first type preset state or not.

Optionally, the determining whether the electronic device 10 is in the first type of preset state specifically includes any of the following: judging whether the electronic equipment 10 is in an unlocking state; it is determined whether the touch screen of the electronic device 10 is in an operational state. When the electronic device 10 is in the first type of predetermined state, it indicates that the user has a high probability of using the electronic device 10.

In this embodiment, whether the electronic device 10 is being used is determined according to the state of the electronic device 10, and impedance measurement is performed only when the electronic device 10 is used, so that power consumption can be further reduced, and power consumption can be saved.

In an embodiment, further, the extracting the pulse signal of the target object according to the change of the human impedance value specifically includes: sequentially carrying out noise reduction processing, compensation processing and filtering processing on the continuously measured human body impedance signals to obtain a preprocessed human body impedance waveform; extracting wave crest information and wave trough information in the human body impedance waveform; and acquiring the pulse signal of the target object according to the peak information and the trough information.

In this embodiment, the human impedance signal is preprocessed, for example, noise in the signal is removed by noise reduction, a waveform is smoothed by compensation, and clutter in the signal is filtered by filtering, etc. And acquiring peak information and trough information of the human impedance waveform from the preprocessed human impedance signal, and determining pulse information such as pulse frequency in a preset time period. Abnormal signals can be removed through preprocessing operation, and the accuracy of the obtained pulse signals is improved.

In some embodiments, referring to fig. 10, the present invention provides a physiological signal measuring device 350, wherein the physiological signal measuring device 350 comprises:

a body impedance measurement module 334, configured to measure an impedance value between at least two electrodes 32 on the electronic device 10.

In some embodiments, the body impedance measurement module 334 may continuously measure the body impedance signal of the target object in contact with the at least two electrodes 32 for a preset time period;

the physiological signal processing module 351 is configured to extract a physiological signal of the target object according to the change of the human impedance value.

Further, the physiological signal processing module 351 is a pulse signal processing module, and is configured to extract a pulse signal of the target object according to the change of the human impedance value.

The method can be used for a mobile terminal (such as a mobile phone 300), and can measure the physiological signals without perception of a user, so that the acquisition of the physiological information becomes continuous and efficient. For example, pulse signals are measured without perception by the user.

In some embodiments, the present invention further provides a physiological signal measuring device 350, wherein the physiological signal measuring device 350 has a functional module corresponding to the physiological signal measuring method of any of the above embodiments, so as to implement the physiological signal measuring method of any of the above embodiments.

In some embodiments, the present invention also provides a computer readable storage medium storing one or more programs, which are executable by one or more processors to implement the steps of the physiological signal measurement method as described above.

The invention will be further described below.

With reference to fig. 1 and 3, the present invention provides an electronic device 10, including a housing 101, a touch screen, a battery, a main board 102 (or 330); the motherboard 102 (or 330) includes at least a processor 331, a memory 332, an IO device (input output device) 333; the main board 102 further comprises a human body impedance measuring module 334, the shell 101 comprises at least two electrodes 32, and the electrodes 32 are electrically connected with the human body impedance measuring module 334; the electrodes 32 may be accessible when held in a single hand of a user. Further, the electronic device 10 is a handheld electronic device 10 for sensorless measurement of physiological signals of the user, for example, sensorless measurement of pulse signals of the user.

Preferably, the body impedance measuring module 334 includes a body impedance measuring chip. The human body impedance measurement chip comprises any one of the following components: the American Texas instruments company AFE4300, Shenzhen nuclear sea technology CS1251, CS1255, CS 1259.

Preferably, the body impedance measuring module 334 measures body impedance through the electrodes 32 on the housing 101.

Preferably, the electrodes 32 of the housing 101 are mounted on a middle frame of the electronic device 10.

Preferably, the electrode 32 is formed by a conductive coating on the middle frame, or by a segmented metal middle frame.

Preferably, the two electrodes 32 of the casing 101 of the electronic device 10 are formed by dividing the middle frame of the electronic device 10 into at least two sections insulated from each other in the longitudinal direction of the middle frame. More preferably, the two electrodes 32 are further divided into two parts insulated from each other, thereby forming four electrodes.

Preferably, the electronic device 10 is a mobile terminal. More preferably, the electronic device 10 is a mobile phone 300.

With the electronic device 10 of the present embodiment, people can more conveniently grasp part of their own physiological information, and the cost is lower than that achieved by a peripheral device, and the design of the external structure of the existing mobile phone is not destroyed.

See fig. 2. Fig. 2 shows a mobile phone 300 with physiological signal measurement function, which includes a mobile phone screen 310, a mobile phone housing 320, and a mobile phone motherboard 330. The handset housing 320 includes a handset bezel and a rear cover (not shown). Electrodes for measuring physiological signals are arranged at the position of a middle frame of the mobile phone, and the total number of the electrodes is four, namely: electrode 321, electrode 322, electrode 323, electrode 324. In one embodiment,

electrodes

321, 324 are in a top middle position of the handset, while

electrodes

322, 323 are in a bottom middle position; the electrode 32 is formed by a conductive coating on the middle frame of the mobile phone.

See fig. 11. As shown in fig. 11, the electrode 321 has a conductive through hole 326, and the electrode 321 made of a conductive coating on the outer surface of the middle frame of the mobile phone can be electrically connected to the inner surface of the middle frame of the mobile phone through the conductive through hole 326, and then connected to the main board 330 of the mobile phone through a wire. The same processing method is used for the electrode 322, the electrode 323, and the electrode 324.

See fig. 3. Fig. 3 shows a circuit structure of the mobile phone motherboard 330. The mobile phone motherboard 330 includes a processor 331, a memory 332 and an input/output (IO) device 333, wherein the processor 331, the memory 332 and the IO device 333 communicate via a bus; moreover, the physiological signal measuring module is also integrated on the mobile phone motherboard 330. The physiological signal measuring module can be one or more. For example, the physiological signal measurement module may include a body impedance measurement module 334 and an electrocardiography measurement module 335. The physiological signal measuring module is a module for measuring a physiological signal of a human body, and when the type of the physiological signal to be measured is determined, the specific type of the physiological signal measuring module is also determined accordingly, for example, if the physiological signal measuring module is used for measuring an electrocardiographic signal, the physiological signal measuring module is called as an electrocardiographic measuring module 335, and if the physiological signal measuring module is used for measuring an impedance of the human body, the physiological signal measuring module is called as a human impedance measuring module 334. The physiological signal measurement module comprises a physiological signal measurement chip, such as: the electrocardiograph module 335 includes an electrocardiograph chip and the body impedance measurement module 334 includes a body impedance measurement chip. Preferably, the electrocardiographic measurement chip is AD8232 of ADI company, and the body impedance measurement chip 334 is CS1256 of Shenzhen core sea technology. The electrodes 321 to 324 are electrically connected to signal input terminals of the AD8232 and the CS1256 through wires.

In one embodiment, when the user holds the mobile phone 300 according to the embodiment of the present invention with a single hand, the current may flow through the palm, and the impedance signal of the circuit path corresponding to the palm portion is measured, because the impedance signal is affected by the blood flow, a dynamic signal that fluctuates periodically with the heartbeat is generated, so that the pulse information may be extracted from the impedance signal. In order to reduce power consumption, the sensorless pulse measurement is not always operated, but is started when the operation is judged to be carried out by hands. Fig. 12 shows a workflow of a sensorless pulse measurement, which specifically includes the following steps:

step S10: firstly, judging whether the mobile phone 300 is in an unlocking state; if the mobile phone 300 is in the unlocked state, go to step S11, otherwise, stay in the stage of step S10; in addition to determining whether the mobile phone 300 is in the unlocked state, this step can also be implemented by determining whether the touch screen of the mobile phone 300 is operated.

Step S11: the body impedance measurement module 334 is activated to obtain a body impedance value.

Step S12: judging whether the human body impedance value obtained in the step S11 is within a preset range; the preset range is a range of human body impedance which can be measured when the human hand holds the human body, and is used for judging the holding operation of the human hand when the current operation is carried out; if yes, go to step S13, otherwise go back to step S10;

step S13: the human body impedance signal of a preset time period (for example, 15 seconds) is continuously measured and then sent to a pulse extraction module to extract pulse information. After this, the process returns to step S10. In order to reduce power consumption, the whole process steps S10-S13 are intermittently started.

As shown in fig. 13, the pulse signal processing module includes a noise reduction filter 3341, a baseline shift compensator 3342, a high pass filter 3343, a low pass filter 3344, a peak-to-valley finder 3345, and a pulse calculator 3346 connected in sequence. Specifically, the method comprises the following steps: a noise reduction filter 3341, configured to perform noise reduction processing on the impedance signal, including a median filter, a sliding filter, and the like; a baseline wander compensator 3342 for performing a smooth compensation of the baseline; a high pass filter 3343 for removing unnecessary low frequency components from the signal, preferably, the high pass filter 3343 having a cutoff frequency of 0.6 Hz; a low-pass filter 3344 for removing unnecessary high frequency components from the signal, preferably, the low-pass filter 3344 having a cutoff frequency of 6 Hz; the wave crest and wave trough finder 3345 is used for finding the wave crest and/or the wave trough of the impedance signal, and two wave crests or two wave troughs correspond to one pulse period; the pulse calculator 3346 may calculate the heart beat period based on the peak and/or trough information, and further convert the heart beat period into the pulse number. In practical implementation, the cutoff frequency of the high-pass filter 3343 and the cutoff frequency of the low-pass filter 3344 may be selected according to actual conditions.

It is also noted that: the high-pass filter 3343, also called a low-cut filter or a low-cut filter, allows frequencies higher than a certain cut frequency to pass through, while greatly attenuating lower frequencies, and the high-pass filter 3343 removes unnecessary low-frequency components in the signal or removes low-frequency interference. The low-pass filter 3344 is an electronic filter device that allows signals below a cutoff frequency to pass, but does not allow signals above the cutoff frequency to pass.

The method disclosed in the above embodiments of the present invention may be applied to the processor 331, or implemented by the processor 331. The processor 331 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be implemented by integrated logic circuits of hardware or instructions in the form of software in the processor 331. The processor 331 may be a general purpose processor, a DSP, or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The processor 331 may implement or perform the methods, steps and logic blocks disclosed in the embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed by the embodiment of the invention can be directly implemented by a hardware decoding processor, or can be implemented by combining hardware and software modules in the decoding processor. The software modules may be located in a storage medium located in the memory 332, and the processor 331 reads the information in the memory 332 and performs the steps of the aforementioned methods in conjunction with its hardware.

The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Read-Only Memory (EEPROM), a magnetic Random Access Memory (FRAM), a ferroelectric Random Access Memory (Flash Memory), or other Memory technologies, a Compact disc Read-Only Memory (CD-ROM), a Dynamic Random Access Memory (SDRAM), or other Memory technologies, a Dynamic Random Access Memory (SDRAM), a Dynamic Random Access Memory (RAM), or a Dynamic Random Access Memory (SDRAM).

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. An electronic device, comprising:

2. The electronic device of claim 1, wherein the housing comprises a middle frame and a cover plate, and the at least two electrodes are disposed on the middle frame, or the at least two electrodes are disposed on the cover plate, or the at least two electrodes are distributed on the middle frame and the cover plate.

3. The electronic device of claim 2, wherein the middle frame comprises a plurality of end-to-end borders, wherein the at least two electrodes comprise at least two L-shaped electrodes, wherein the L-shaped electrodes comprise a first section and a second section, wherein the first section is disposed on the middle frame and the second section is disposed on the cover plate, wherein the first section and the second section are disposed on two borders connecting the middle frame, or wherein the first section and the second section are disposed at corners of the cover plate along the two borders connecting the middle frame.

4. The electronic device of claim 3, wherein the at least two electrodes further comprise at least two strip electrodes; the at least two strip electrodes are arranged on the two opposite side frames of the middle frame, or are arranged on the edge of the cover plate along the two opposite side frames of the middle frame.

5. The electronic device of any of claims 1-4, wherein a distance between each adjacent two of the at least two electrodes is less than 15 cm.

6. The electronic device according to claim 5, wherein a distance between each adjacent two of the at least two electrodes is 0.5cm to 12 cm.

7. A physiological signal measuring method applied to an electronic device according to any one of claims 1 to 6, characterized by comprising the steps of:

8. The physiological signal measuring method according to claim 7, further comprising the following steps after said continuously measuring the human impedance signal of the target object in contact with said at least two electrodes for a preset time period:

9. The physiological signal measuring method according to claim 8, wherein said extracting the pulse signal of the target subject according to the change in the human impedance value comprises:

10. A computer readable storage medium, characterized in that the computer readable storage medium stores one or more programs which are executable by one or more processors to implement the steps of the physiological signal measurement method according to any one of claims 7 to 9.