WO2021143615A1 - Blood oxygen monitoring method based on electronic device, medium, and system - Google Patents

Abstract

Disclosed are a blood oxygen monitoring method based on an electronic device, a medium, and a system. The method comprises: acquiring blood oxygen monitoring data, detected by an electronic device, of a user and the altitude of a location where the user is located; extracting a feature value of a blood oxygen saturation value from the acquired blood oxygen monitoring data; calculating an oxygen tolerance value of the user on the basis of the extracted feature value and an initial blood oxygen saturation range value corresponding to the altitude, wherein the greater the oxygen tolerance value, the greater the difference between the threshold value of the blood oxygen saturation value of the user and the lowest blood oxygen saturation value in the initial blood oxygen saturation range value; and calculating the threshold value of the blood oxygen saturation value of the user according to the calculated oxygen tolerance value and the initial blood oxygen saturation range value. By means of the blood oxygen monitoring method based on an electronic device, the medium, and the system, the threshold value of a blood oxygen saturation value of a user can be dynamically adjusted according to the altitude of a location where the user is located, thereby realizing real-time monitoring of the blood oxygen saturation value of the user and warning the user in a timely manner.

Description

Blood oxygen monitoring method, medium and system based on electronic equipment

This application claims the priority of the Chinese patent application filed on January 16, 2020 with the application number 202010048759.2 and the invention title "Electronic device-based blood oxygen monitoring method, medium and system", the entire content of which is incorporated into this application by reference middle.

Technical field

This application relates to the field of communication technology, and in particular to a blood oxygen monitoring method, medium and system based on electronic equipment.

Background technique

Blood oxygen refers to the oxygen in the blood, which is a key indicator of people's physical condition. It reflects the available level of oxygen in the blood and reflects the human body's respiratory function and blood circulation function. Too low blood oxygen saturation can cause great damage to the body and endanger life. Different altitudes will affect the blood oxygen saturation value. For example, the oxygen content in the air at high altitude is low, so the blood oxygen saturation value of people living in high altitude areas will be higher than the blood oxygen saturation value of people living in plain areas. Therefore, the blood oxygen warning value of people living in high-altitude areas will be lower than those of people living in plain areas. However, the early warning value of blood oxygen saturation in some existing blood oxygen monitoring and warning devices is generally determined based on the environment of people’s daily life and is fixed. In this way, when people travel in high-altitude areas, the early warning value of blood oxygen is low. , Even if people’s blood oxygen levels are lower than usual, they cannot get timely warnings, which will affect people’s health.

Summary of the invention

The embodiment of the application provides a blood oxygen monitoring method based on an electronic device. The present invention can dynamically adjust the user's blood oxygen saturation value threshold according to the altitude where the user is located, thereby realizing real-time monitoring of the user's blood oxygen saturation Value and give timely warning to users.

In the first aspect, an embodiment of the present application provides an electronic device-based blood oxygen monitoring method, including:

Obtain the user’s blood oxygen monitoring data and the altitude of the user’s location monitored by the electronic device; extract the characteristic value of the blood oxygen saturation value in the acquired blood oxygen monitoring data; based on the extracted characteristic value and the initial value corresponding to the altitude Oxygen saturation range value, calculate the user's oxygen tolerance value, where the greater the oxygen tolerance value, it means that the user's oxygen saturation value threshold is between the lowest oxygen saturation value in the initial oxygen saturation range value The greater the difference is; the threshold value of the user's blood oxygen saturation value is calculated according to the calculated oxygen tolerance value and the initial blood oxygen saturation range value. That is, by obtaining the user’s altitude and the user’s historical blood oxygen monitoring data corresponding to the altitude, the user’s oxygen tolerance value, the size of the oxygen tolerance value and the user’s blood oxygen value are trained to dynamically adjust the threshold of the user’s blood oxygen saturation value. The threshold of the oxygen saturation value is related to the initial blood oxygen saturation range value corresponding to the altitude of the user.

In a possible implementation of the foregoing first aspect, the foregoing method further includes:

Determine whether the blood oxygen saturation value in the user's blood oxygen monitoring data monitored by the electronic device is continuously lower than the blood oxygen saturation value threshold within a predetermined time period; after judging that the blood oxygen saturation value is continuously lower than the threshold value In the case of, send a warning message to the user. Among them, the predetermined time period may be half an hour or other time lengths. In addition, taking into account possible data abnormalities, it is also possible to take the average or extreme difference of the blood oxygen saturation value monitored within a predetermined time period to determine whether the user's blood oxygen saturation value meets the alarm condition. For example, the user's blood oxygen saturation value within half an hour can be averaged, and when the average value of the user's blood oxygen saturation value within half an hour is lower than the user's blood oxygen saturation value threshold, a warning message is sent to the user. Among them, the warning information may be through the vibration of the electronic device itself, or directly dialing emergency numbers, emergency contacts, etc. through the electronic device.

In a possible implementation of the foregoing first aspect, the foregoing method further includes:

The characteristic values of the blood oxygen saturation value extracted from the acquired blood oxygen monitoring data include: the interquartile range of the extracted blood oxygen saturation value, the truncated mean, the triple mean, and the mean absolute deviation and variance of the oxygen subtraction index. More than one of the quantile and three means. In more specific cases, all of the above values or more other values that can represent the characteristics of the blood oxygen saturation value may also be extracted as the characteristic values of the blood oxygen saturation value and the oxygen depletion index.

In a possible implementation of the foregoing first aspect, the foregoing method further includes:

Calculate the oxygen depletion index according to the blood oxygen saturation value in the blood oxygen monitoring data. Among them, the oxygen depletion index refers to the average number of oxygen depletion per hour during the entire sleep period of the user, also known as the ODI index. The specific calculation method is: measure the user’s average blood oxygen saturation before going to bed before sleeping, and if the monitored blood oxygen saturation value is 4% lower than the average blood oxygen saturation before going to bed during sleep, and the duration is not less than 10 seconds, it is judged as a hypoxia event.

In a possible implementation of the foregoing first aspect, the foregoing method further includes:

Calculate the user's oxygen tolerance value by the following formula:

τ=t ₁ z ₁ +t ₂ z ₂ +t ₃ z ₃ +···++t _n z _n

Among them, τ represents the user’s oxygen tolerance, t ₁ , t ₂ , t ₃ ···t _n are the characteristic values of blood oxygen saturation values in each group, z ₁ , z ₂ , z ₃ ···z _n are blood Oxygen difference coefficient.

In a possible implementation of the foregoing first aspect, the foregoing method further includes:

The threshold value of the user's blood oxygen saturation value is calculated by the following formula:

TSPO=SPO _min +(SPO _max -SPO _min )τ

Among them, TSPO represents the threshold of the user's blood oxygen saturation value, SPOmin represents the lowest blood oxygen saturation value in the initial blood oxygen saturation range value of the altitude where the user is located, and SPOmax represents the user's altitude oxygen saturation value in the initial blood oxygen saturation range value The highest blood oxygen saturation value, τ is the user’s oxygen tolerance value.

In the second aspect, an embodiment of the present application provides a blood oxygen monitoring method based on an electronic device, including:

The first electronic device acquires the user's blood oxygen monitoring data and the altitude of the user's location monitored by the second electronic device; the first electronic device extracts the characteristic value of the blood oxygen saturation value in the acquired blood oxygen monitoring data;

The first electronic device calculates the user’s oxygen tolerance value based on the extracted feature value and the initial oxygen saturation range value corresponding to the altitude. The greater the oxygen tolerance value, the greater the user’s oxygen saturation threshold and the initial oxygen saturation value. The greater the difference between the lowest blood oxygen saturation value in the blood oxygen saturation range value; the first electronic device calculates the user's blood oxygen saturation value according to the calculated oxygen tolerance value and the initial blood oxygen saturation range value The threshold. Specifically, the process of calculating the threshold of blood oxygen saturation value can also be implemented on other electronic devices such as mobile phones. For example, the mobile phone can obtain the blood oxygen saturation value on the bracelet, and then calculate it according to the obtained blood oxygen saturation value. The user's blood oxygen saturation value threshold, and then according to the calculated blood oxygen saturation value threshold to monitor the user's blood oxygen saturation in real time, thereby realizing real-time warning prompts.

In a possible implementation of the foregoing second aspect, the foregoing method further includes:

The first electronic device acquires the blood oxygen saturation value in the user's blood oxygen monitoring data monitored by the second electronic device within a predetermined time period; the first electronic device determines whether the acquired blood oxygen saturation value within the predetermined time period is The blood oxygen saturation value is continuously lower than the threshold value; the first electronic device sends a warning message to the user if it determines that the blood oxygen saturation value is continuously lower than the threshold value.

In a possible implementation of the foregoing second aspect, the foregoing method further includes:

The characteristic values of the blood oxygen saturation value in the blood oxygen monitoring data extracted by the first electronic device include: the interquartile range of the blood oxygen saturation value extracted by the first electronic device, the truncated mean value, the third mean value, and the oxygen reduction Multiple of the average absolute deviation, variance, quantile, and three means of the index.

In a possible implementation of the foregoing second aspect, the foregoing method further includes:

The first electronic device calculates the oxygen depletion index according to the blood oxygen saturation value in the blood oxygen monitoring data.

In a possible implementation of the foregoing second aspect, the foregoing method further includes:

Calculate the user's oxygen tolerance value by the following formula:

τ=t ₁ z ₁ +t ₂ z ₂ +t ₃ z ₃ +···++t _n z _n

Among them, τ represents the user’s oxygen tolerance, t ₁ , t ₂ , t ₃ ···t _n are the characteristic values of blood oxygen saturation values in each group, z ₁ , z ₂ , z ₃ ···z _n are blood Oxygen difference coefficient.

In a possible implementation of the foregoing second aspect, the foregoing method further includes:

The threshold value of the user's blood oxygen saturation value is calculated by the following formula:

TSPO=SPO _min +(SPO _max -SPO _min )τ

Among them, TSPO represents the threshold of the user's blood oxygen saturation value, SPOmin represents the lowest blood oxygen saturation value in the initial blood oxygen saturation range value of the altitude where the user is located, and SPOmax represents the user's altitude oxygen saturation value in the initial blood oxygen saturation range value The highest blood oxygen saturation value, τ is the user’s oxygen tolerance value.

In the third aspect, an embodiment of the present application provides an electronic device, including:

The acquisition module is used to acquire the user's blood oxygen monitoring data detected by the electronic device and the altitude of the user's location;

Feature value extraction module: used to extract the feature value of the blood oxygen saturation value in the acquired blood oxygen monitoring data;

The blood oxygen difference coefficient calculation module calculates the user's oxygen tolerance value based on the extracted feature value and the initial blood oxygen saturation range value corresponding to the altitude. Among them, the greater the oxygen tolerance value, the greater the user's blood oxygen saturation value. The greater the difference between the threshold and the lowest blood oxygen saturation value in the initial blood oxygen saturation range value;

The blood oxygen saturation value threshold calculation module is used to calculate the user's blood oxygen saturation value threshold according to the calculated oxygen tolerance value and the initial blood oxygen saturation range value.

In a fourth aspect, an embodiment of the present application provides a machine-readable medium with an instruction stored on the machine-readable medium, and when the instruction is executed on a machine, the machine executes any of the above-mentioned methods.

In a fifth aspect, an embodiment of the present application provides a system, including: a memory, configured to store instructions executed by one or more processors of the system, and a processor, one of the processors of the system, configured to execute the foregoing Any method.

Description of the drawings

FIG. 1 shows a diagram of a blood oxygen monitoring system based on an electronic device according to some embodiments of the present application, including a structural diagram of an electronic device 100, an electronic device 200, and an electronic device 100;

Fig. 2 shows a schematic diagram of an electronic device-based blood oxygen monitoring method according to some embodiments of the present application;

Fig. 3 shows a schematic diagram of another blood oxygen monitoring method based on electronic equipment according to some embodiments of the present application;

Fig. 4 shows an interaction diagram between the wristband 100 and the mobile phone 200 according to some embodiments of the present application;

Figure 5 shows a structural diagram of an electronic device according to some embodiments of the present application;

Fig. 6 shows a structural diagram of another electronic device according to some embodiments of the present application;

Fig. 7 shows a block diagram of a system on chip (SoC) according to some embodiments of the present application.

Specific embodiment

The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. It can be understood that the specific embodiments described here are only used to explain the embodiments of the present invention, but not to limit the embodiments of the present invention. And, the drawings only show a part but not all of the structure related to the embodiment of the present invention.

The wearable electronic device described in this article can be worn on different positions on the body (for example, higher on the forearm, on the opposite side of the forearm, on the legs, on the torso, etc.), which will be used by those skilled in the art Understand.

The embodiments of the present application will be described in further detail below in conjunction with the accompanying drawings.

Fig. 1 shows a blood oxygen monitoring system 10 adopting the technical method of the present application. Specifically, as shown in FIG. 1, the monitoring system 10 includes an electronic device 100 and an electronic device 200. The electronic device 100 has a barometer 101, a PPG (Photo Plethysmo Graphy, Photoplethysmograph) sensor 102, a controller 103, a user interface 104, a memory 105, and a wireless communication module 106. Among them, the barometer 101 and the PPG sensor 102 can obtain the altitude data of the user and the user's blood oxygen saturation value, respectively, so that the electronic device 100 is based on the user's altitude and combined with the user's blood oxygen saturation value. The threshold of blood oxygen saturation value is dynamically adjusted. It can be understood that the electronic device 100 may be various electronic devices capable of collecting user blood oxygen saturation values and altitude data, such as wearable electronic devices such as bracelets, smart watches, glasses, helmets, headbands, etc., medical testing instruments, and so on. Hereinafter, the bracelet 100 shown in FIG. 1 is taken as an example for description.

At the same time, FIG. 1 also shows a schematic structural diagram of the wristband 100 according to an embodiment of the present application. Specifically, the wristband 100 may include a barometer 101, a photoplethysmograph (PPG) sensor 102, a controller 103, a user interface 104, a memory 105, and a wireless communication module 106. It can be understood that in other embodiments, the wristband 100 may also have other structures, and is not limited to the structure shown in FIG. 1.

The barometer 101 is used to measure air pressure. In some embodiments, the electronic device 100 calculates altitude based on the air pressure value measured by the air pressure sensor 101 to assist positioning and navigation.

The PPG sensor 102 is used to obtain physiological data of the user, such as blood oxygen saturation value. It can include multiple light sources and photoelectric sensor devices corresponding to the light sources to realize the reception of user physiological data (such as blood oxygen monitoring data). At the same time, in some embodiments, the PPG sensor 101 may also send the user's physiological data to the controller 103.

The controller 103 is the control center of the monitoring system 100. It can be one or more general-purpose central processing units, microprocessors, etc., or can be application specific integrated circuits (ASICs), electronic circuits, and the like. The controller 102 may also control the turning on and off of each light source (LED) by controlling the driver of each light source (LED). At the same time, the controller 103 can also receive signals from the PPG sensor 101, the barometer 102, and the user interface 104 and send signals to them.

The user interface 104 is used to exchange information between the system and the user, and can realize user registration and login. Generally, user interface refers to software interface, which can include command interface, program interface, and graphics interface. That is, the software developed on the basis of the hardware equipment interface of the man-machine connection.

The memory 105 can be used to store the instructions executed by the controller 103 and the intermediate data generated when the instructions are executed, and can be used to store the monitoring data monitored by the PPG sensor, barometer, etc. In addition, in some embodiments, the memory 105 may also store the user's blood oxygen saturation value and blood oxygen medical indicators (eg, hypoxic index) in the history of the wearable electronic device (such as the wristband 100).

The wireless communication module 106 may generally include one or more modules, which allow, for example, wireless communication between the mobile terminal 100 and a wireless communication system, communication between the mobile 100 and another mobile terminal, and communication between the mobile terminal 200 and the external Communication between servers. The wireless communication module 106 can be connected to the controller 103 or can be connected to other modules, which is not limited here.

The electronic device 200 can be a client that can communicate with the electronic device 100, and can help the electronic device 100 complete registration, control the firmware update of the electronic device 100, receive monitoring data of the electronic device 100, and assist the electronic device 100 in analyzing historical monitoring data for use During the process, the user's blood oxygen saturation value threshold is dynamically adjusted. It is understood that the electronic device 200 may include, but is not limited to, laptop computers, desktop computers, tablet computers, smart phones, wearable devices, head-mounted displays, mobile email devices, portable game consoles, portable music players, reading A device, a television with one or more processors embedded or coupled therein, or other electronic devices that can access the network. The following uses the mobile phone 200 shown in FIG. 1 as an example for description.

The following describes the technical solution of this application in detail in combination with specific scenarios.

When users who live in the plains for a long time go to the plateau for short-term travel or business trips, because the air pressure and oxygen content in the plains are higher than those in the plateau, the user’s blood oxygen content is often lower than that in the plateau. Blood oxygen content in the plains. And because the initial oxygen saturation range value of each altitude interval is often fixed (as shown in Table 1), the initial oxygen saturation range value of the user in the plain area is larger than the initial oxygen saturation range value in the plateau area. Therefore, using the initial blood oxygen saturation range value in the plateau area to alert the user cannot promptly remind the user to take corresponding measures. Therefore, it is necessary to dynamically adjust the user's blood oxygen saturation value threshold according to the user's altitude and the blood oxygen monitoring data at the corresponding altitude, as well as other user health data (such as oxygen reduction indicators, etc.) to achieve The altitude blood oxygen monitoring alarm.

It is understandable that in other embodiments based on the technical solution of the present invention, other blood oxygen monitoring data, such as heart rate, pulse, etc., can also be used to realize the blood oxygen monitoring alarm prompt, which is not limited in this application.

Table 1

The data source in the table is "Peng Baozhu, Wang Tao, Zeng Changming, Wu Feng. Observation of blood oxygen saturation and pulse changes at different altitudes[J]. Medical Animal Control, 2000(08): 414-415".

Specifically, the process of dynamically adjusting the threshold of the blood oxygen saturation value in the present application will be described below.

Model training

In order to dynamically adjust the user's blood oxygen saturation value threshold, it is necessary to train a model that can adjust the user's blood oxygen saturation value threshold value at different altitudes according to different users at different altitudes. The user blood saturation value calculated by the bracelet 100 is used below. The threshold of oxygen saturation value illustrates the process of model training.

(1) Collect the user's altitude and the blood oxygen saturation value at the corresponding altitude

Obtain the altitude of the user and the blood oxygen monitoring data (such as blood oxygen saturation value, heart rate, etc.) corresponding to the altitude of the user through the barometer 101 and the PPG sensor 102 of the wristband 100 worn by the user; specifically , Assuming that the blood oxygen saturation value of the user at an altitude of H1 is collected for n days. Among them, the user's blood oxygen saturation value for T2 seconds can be collected every T1 hour, and m groups can be collected every day.

For the convenience of explanation, suppose that the blood oxygen saturation value of the user at an altitude of 1500 meters is collected for 4 days. Among them, 6 groups are collected every day, with an interval of 1 hour for each group, and each collection is 30 seconds, and the user's blood oxygen saturation value is obtained as:

group1(a1,a2,a3...a30),

group2(a31,a32,a33...a60),

···

group23(a661,a662,a663···a690),

group24(a691,a692,a693···a720).

Perform preprocessing such as denoising on the above blood oxygen saturation value, such as removing some abnormal data or some data that has no reference value. Specifically, when the bracelet 100 is just turned on for 10 seconds, the collected blood oxygen saturation value can be considered There is no reference value, or the current one second blood oxygen saturation value is significantly higher (for example, more than 70% of the next second) or lower than the next second blood oxygen (less than 30% of the next second) saturation value, it is considered The blood oxygen monitoring data is abnormal.

It is understandable that in other embodiments, the altitude of the user can also be obtained through the air pressure sensor of the mobile phone 200, and then the mobile phone 200 can synchronize the data with the wristband 100 through the communication module, so as to obtain the data synchronization between the wristband 100 and the aforementioned Blood oxygen monitoring data corresponding to altitude.

(2) Calculate the collected user's blood oxygen saturation value and the characteristic value of the user's oxygen depletion index

Based on the aforementioned pre-processed user’s blood oxygen saturation value, the characteristic value of the blood oxygen saturation value of each group of users (such as the interquartile range, truncated mean, and triple mean) and the characteristic value of the oxygen depletion index ( The average absolute deviation, variance, interquartile range, three-mean value of oxygen reduction index).

It is understandable that in other embodiments of the present application, a part of the values may also be calculated as the characteristic value of the blood oxygen saturation value and the oxygen depletion index. For example, the interquartile range, truncated mean, triple mean, and the variance and triple mean of the oxygen saturation value are calculated as the characteristic values of the oxygen saturation value and oxygen reduction index.

Among them, the oxygen depletion index refers to the average number of oxygen depletion per hour during the entire sleep period of the user, also known as the ODI index. The specific calculation method is: before the user sleeps, measure the average value of the user’s blood oxygen saturation before going to bed. During sleep, if the monitored blood oxygen saturation value is 4% lower than the average value of the blood oxygen saturation before going to bed, and If the duration is not less than 10 seconds, it is judged as an oxygen depletion event. If the user’s ODI index is at (5, 14.9) (where 5 represents the lowest threshold for the number of oxygen depletion events for mild sleep apnea, and 14.9 represents the highest threshold for the number of oxygen deprivation events for mild sleep apnea), it is mild Sleep apnea; (15, 29.9) (where 15 represents the lowest threshold of the number of hypoxia events for moderate sleep apnea, and 29.9 represents the highest threshold of the number of oxygen hypoxia events for moderate sleep apnea) is moderate sleep apnea ; And greater than or equal to 30 times (30 represents the lowest threshold of the number of oxygen depletion events for severe sleep apnea), it is severe sleep apnea; the user oxygen depletion index is an important indicator to measure the user’s sleep breathing status, in this embodiment Participate in the dynamic adjustment of the user's blood oxygen saturation threshold as the user's health information.

In this embodiment, it is assumed that the user sleeps for 8 hours a day, and the oxygen loss index of the user at an altitude of 1500 meters is collected for 4 days. Among them, 6 groups are collected every day for 30 seconds each time, and the user oxygen loss index is obtained as:

ODIgroup1(b1, b2, b3···b5, b6),

ODIgroup(b31,b32,b33...b60),

···

ODIgroup23(b661,b662,b663...b690),

ODIgroup24 (b691, b692, b693...b720).

Specifically, in some embodiments, the above-mentioned blood oxygen saturation value and the characteristic value of the oxygen depletion index can be calculated by the following formula, for example, the three values of the blood oxygen saturation value and the oxygen depletion index of each group of users can be calculated by formula (1). Mean:

Among them, TM represents the three-mean value of the user's blood oxygen saturation value or the three-mean value of the oxygen depletion index, Q ₁ and Q ₃ are the two quartile points of the data, and Q ₂ is the median;

And calculate the interquartile range of the user's blood oxygen saturation value and oxygen depletion index by formula (2):

Q=Q ₃ -Q ₁ (2)

Among them, the interquartile range of the Q user's blood oxygen saturation value or oxygen reduction index, Q ₃ is the quartile, which is located at 75%, and Q ₁ is the quartile, which is located at 25%;

And calculate the censored mean value of the user's blood oxygen saturation value by formula (3):

in,

Indicates the censored mean value of the user’s blood oxygen saturation value, and α represents the censored coefficient,

n represents the number of blood oxygen saturation values, and m represents the number of user blood oxygen saturation values removed. X ₁ , X ₂ , ···X _n represents the sequence of the user's blood oxygen saturation values in ascending order;

And calculate the variance of oxygen depletion index by formula (4):

Among them, S ² is the variance of the user's oxygen depletion index, and X is the user's oxygen depletion index,

The mean value of the user's oxygen depletion index, where n is the number of the user's oxygen depletion index;

For example, the characteristic values of the blood oxygen saturation of each group of users are calculated by the above formula: TMgroup1, Qgroup1,

TMgroup2, Qgroup2,

···, TMgroup23, Qgroup23,

TMgroup24, Qgroup24,

And the characteristic values of the user oxygen depletion index are: TM-ODI1, S ² -OID1, Q-ODI1, TM-ODI2, S ² -OID2, Q-ODI2; ···TM-ODI23, S ² -OID23, Q- ODI23; TM-ODI24, S ² -OID24, Q-ODI24.

It is understandable that when calculating specific characteristic values, it is also possible to calculate only the characteristic value of the blood oxygen saturation value or the oxygen subtraction index. For example, only the three-mean value, interquartile range, and cutoff value of the blood oxygen saturation value can be calculated. The tail average or only the three-mean value, absolute average difference, range and interquartile range of the oxygen reduction index are calculated. The present invention does not limit this.

(3) Train the calculated characteristic values of the user's blood oxygen saturation value and oxygen depletion index to obtain the threshold value of the blood oxygen saturation value at the corresponding altitude

First, based on the collected blood oxygen saturation values of each group of users, the lowest blood oxygen saturation value of the user every day is obtained, and the blood oxygen saturation range value of the altitude where the user is located is obtained. For example, the lowest blood oxygen saturation values of a user for four days are LSPOday1, LSPOday2, LSPOday3, and LSPOday4. If the user’s altitude is 1500 meters, the blood oxygen saturation range of the user’s altitude is obtained in conjunction with Table 1. (94.58%, 98.30%);

Then calculate the characteristic values of the blood oxygen saturation value and oxygen depletion index of the above groups of users. The main steps are as follows:

(A) Calculation of user's blood oxygen difference coefficient

That is, combining the characteristic values of the blood oxygen saturation and the oxygen depletion index of the above groups of users, calculate the user's blood oxygen difference coefficient according to formula (5):

Among them, t ₁ , t ₂ , t ₃ ···t _n are the characteristic values of the blood oxygen saturation values of each group, z ₁ , z ₂ , z ₃ ···z _n are the blood oxygen difference coefficients, and LSPO represents the user’s daily The lowest blood oxygen saturation value, SPOmin represents the lowest blood oxygen saturation value in the initial blood oxygen saturation range value of the altitude where the user is located, SPOmax represents the highest blood oxygen saturation value in the initial blood oxygen saturation range value of the user's altitude value.

For example, for the above example, the calculation process of the user's blood oxygen difference coefficient is as follows:

From the above calculations, the blood oxygen saturation values of the 24 groups of users and the blood oxygen difference coefficient of the oxygen depletion index are obtained; then the 24 groups of blood oxygen difference coefficients are averaged (or the variance, etc.) to calculate the user blood oxygen difference coefficients z1, z2, z3···z6;

It can be understood that in other embodiments, you can also use

or

This application does not impose restrictions on this.

(B) Calculation of user oxygen tolerance

That is, based on the user's blood oxygen difference coefficient calculated above, the oxygen tolerance value of the user's altitude is calculated by formula (6):

For example, the user’s oxygen tolerance can be calculated by the following formula:

τ=t ₁ z ₁ +t ₂ z ₂ +t ₃ z ₃ +···++t _n z _n (6)

Among them, τ represents the user’s oxygen tolerance, t ₁ , t ₂ , t ₃ ···t _n are the characteristic values of blood oxygen saturation values in each group, z ₁ , z ₂ , z ₃ ···z _n are blood Oxygen difference coefficient.

For example, to calculate the oxygen tolerance value τ at the altitude where the user is located, it can be specifically:

The wristband 100 obtains the user’s altitude through the barometer 101, then collects the user’s real-time blood oxygen saturation value through the PPG sensor 102, calculates the characteristic value of the user’s blood oxygen saturation value according to the above method, and then combines the above user blood oxygen The difference coefficients z1, z2, z3···z6 are used to calculate the oxygen tolerance value of the user.

For example, the wristband 100 uses the barometer 101 to obtain the user’s altitude at 1500 meters, and uses the PPG sensor 102 to collect the user’s blood oxygen saturation value for 6S (or six sets of data in other time periods) within a certain period of time as SPO. _1. SPO ₂ , SPO ₃ , ···, SPO ₆ , and then pass τ=SPO ₁ z ₁ +SPO ₂ z ₂ +SPO ₃ z ₃ +···+SPO ₆ z _{6 to} get the user’s altitude Oxygen tolerance

(C) Calculation of the threshold of the user's blood oxygen saturation value

That is, in combination with the user's oxygen tolerance value calculated above, the threshold value of the user's blood oxygen saturation value is calculated according to formula (7):

TSPO=SPO _min +(SPO _max -SPO _min )τ (7)

Among them, TSPO represents the threshold of the user's blood oxygen saturation value, SPOmin represents the lowest blood oxygen saturation value in the initial blood oxygen saturation range of the user's altitude, and SPOmax represents the user's initial blood oxygen saturation value in the altitude range. The highest blood oxygen saturation value of, τ represents the user’s oxygen tolerance value.

For example, TSPO=94.58%+(98.3%-94.58%) (SPO ₁ z ₁ + SPO ₂ z ₂ + SPO ₃ z ₃ +···+SPO ₆ z ₆ ).

Real-time monitoring and alarm

Next, in conjunction with Fig. 2, the user’s blood oxygen saturation value threshold value based on the above calculation is implemented on the wristband 100 to realize the process of real-time monitoring of the user’s blood oxygen saturation value and real-time warning, as shown in Fig. 2:

Obtain the user’s altitude through the barometer 101 of the wristband 100, and obtain the real-time blood oxygen saturation value corresponding to the user’s altitude through the PPG sensor 102, and then based on the above calculated threshold TSPO of the user’s blood oxygen saturation, And combined with the user's three-mean TM-ODI (or other characteristic values of the oxygen reduction index) to give the user a corresponding blood oxygen warning. The specific method is as follows:

Suppose the bracelet 100 obtains that the user’s altitude is 1500 meters, and then monitors the user’s blood oxygen saturation value in real time through the PPG sensor 101, and compares the user’s real-time blood oxygen saturation value with the user’s blood oxygen saturation value threshold TSPO :

When the user's real-time blood oxygen saturation value is less than or equal to the user's blood oxygen saturation value threshold TSPO for half an hour and/or according to the user's three-mean value of oxygen depletion index TM-ODI, it is known that the user has moderate or severe sleep apnea In case (at this time, it can also be considered that the user's physical condition is worrying), the user is alerted (for example, the bracelet vibrates and prompts the user to take a rest, seek medical treatment, or breathe pure oxygen);

Further, as shown in Fig. 2, when the user lives in a place with an altitude of H2=2000 meters, the lowest blood oxygen saturation value in the initial blood oxygen saturation range value at an altitude of 2000 meters is obtained according to Table 1 as H2- SPO=91.82%, and then compare the user's blood oxygen saturation TSPO at an altitude of 1500 meters with 91.82%:

(A) If TSPO is greater than 91.82%, set the lowest blood oxygen saturation value in the initial blood oxygen saturation range value of altitude 2000 to TSPO, then at this time, the initial blood oxygen saturation value of altitude 2000 is ( TSPO, 95.66%), through the above method of calculating the user's blood oxygen saturation value threshold, calculate the user's blood oxygen saturation value threshold TSPO2 at an altitude of 2000 meters, and monitor the user's blood oxygen saturation value in real time, when the user's blood oxygen saturation When the degree value is lower than TSPO2 for half an hour, the user will be warned;

(B) If TSPO is less than or equal to 91.82%, keep the lowest blood oxygen saturation value in the initial blood oxygen saturation range value of 2000 meters above sea level unchanged H2-SPO, that is, the initial blood oxygen saturation value of 2000 meters above sea level is (91.82%, 95.66%), the above method of calculating the user’s blood oxygen saturation value threshold is still used to calculate the user’s blood oxygen saturation threshold TSPO2 at an altitude of 2000 meters, and monitor the user’s blood oxygen saturation value in real time. When the blood oxygen saturation value is lower than TSPO2 for half an hour, the user will be warned.

Further, as shown in FIG. 3, the bracelet 100 can obtain the altitude and blood oxygen monitoring data of the user (the blood oxygen monitoring data includes blood oxygen saturation value, heart rate, etc.) and combine the blood oxygen saturation calculated above. The threshold of the degree value is used to monitor the user’s blood oxygen saturation value in real time through the APP (application) on the bracelet 100, and when the user’s blood oxygen saturation value is lower than the blood oxygen saturation value threshold for half an hour continuously In addition to alerting the user, he can also obtain the user’s altitude and blood oxygen saturation value in real time according to the barometer 101 and PPG sensor 102, and dynamically depict the correlation diagram between the blood oxygen saturation value and altitude, and describe the altitude and altitude. The correlation diagram between the thresholds of the user's blood oxygen saturation value corresponding to the altitude.

It can be understood that although the above embodiment is described by the threshold value of the user's blood oxygen saturation value calculated by the wristband 100, in other embodiments, the mobile phone 200 can also be used to calculate the user's blood oxygen saturation value. Threshold. For example, FIG. 4 shows a schematic flow chart of calculating the threshold of the user's blood oxygen saturation value and alerting the user by using the mobile phone 200 according to an embodiment of the application. As shown in Figure 4:

402: The mobile phone 200 establishes a communication connection with the bracelet 100.

404: The bracelet 100 sends the user's historical blood oxygen saturation value and the user's oxygen loss index to the mobile phone 200.

406: Calculate the current user's blood oxygen saturation threshold TSPO and the three-average value of the user's oxygen depletion index according to the user's historical blood oxygen saturation value and the user's oxygen depletion index in combination with the altitude. The specific calculation method of the threshold value of the blood oxygen saturation value and the three-mean value of the oxygen depletion index is the same as the above-mentioned embodiment, and will not be repeated here.

408: The bracelet 100 sends the real-time blood oxygen saturation value to the mobile phone 200

410: When the user's real-time blood oxygen saturation value is lower than the user's blood oxygen saturation value threshold TSPO for half an hour and/or the user is in a moderate or severe sleep apnea condition, alert the user.

FIG. 5 shows a schematic diagram of an electronic device according to an embodiment of the present invention. It can be understood that the specific technical details in the blood oxygen monitoring method based on the electronic device are also applicable to the electronic device. In order to avoid repetition, it is not here. Go into details again.

Specifically, as shown in Figure 5, the electronics includes:

The obtaining module 501 is used to obtain the blood oxygen monitoring data of the user and the altitude of the place where the user is located, detected by the electronic device;

Feature value extraction module 502: used to extract the feature value of the blood oxygen saturation value in the acquired blood oxygen monitoring data;

The blood oxygen difference coefficient calculation module 503 calculates the user's oxygen tolerance value based on the extracted characteristic value and the initial blood oxygen saturation range value corresponding to the altitude, where the greater the oxygen tolerance value, the user's blood oxygen saturation value The greater the difference between the threshold value of and the lowest oxygen saturation value in the initial oxygen saturation range value;

The blood oxygen saturation value threshold calculation module 504 is used to calculate the user's blood oxygen saturation value threshold according to the calculated oxygen tolerance value and the initial blood oxygen saturation range value.

FIG. 6 shows a structural block diagram of an electronic device 600 capable of realizing the functions of the electronic device 200 shown in FIG. 1 according to an embodiment of the present invention. Specifically, as shown in FIG. 6, the electronic device 600 may include a processor 610, an external memory interface 620, an internal memory 621, a universal serial bus (USB) interface 630, a charging management module 640, and a power management module 641 , Battery 642, antenna 1, antenna 2, mobile communication module 650, wireless communication module 660, audio module 670, speaker 670A, receiver 670B, microphone 670C, earphone interface 670D, sensor module 680, buttons 690, motor 691, indicator 692 , Camera 693, display screen 694, subscriber identification module (subscriber identification module, SIM) card interface 695, etc. The sensor module 680 may include a pressure sensor 680A, a gyroscope sensor 680B, an air pressure sensor 680C, a magnetic sensor 680D, an acceleration sensor 680E, a distance sensor 680F, a proximity light sensor 680G, a fingerprint sensor 680H, a temperature sensor 680J, a touch sensor 680K, and ambient light Sensor 680L, bone conduction sensor 680M, etc.

It can be understood that the structure illustrated in the embodiment of the present invention does not constitute a specific limitation on the electronic device 600. In other embodiments of the present application, the electronic device 600 may include more or fewer components than shown, or combine certain components, or split certain components, or arrange different components. The illustrated components can be implemented in hardware, software, or a combination of software and hardware.

The processor 610 may include one or more processing units. For example, the processor 610 may include an application processor (AP), a modem processor, a graphics processing unit (GPU), and an image signal processor. (image signal processor, ISP), controller, video codec, digital signal processor (digital signal processor, DSP), baseband processor, and/or neural-network processing unit (NPU), etc. Among them, the different processing units may be independent devices or integrated in one or more processors. For example, the electronic device can calculate the credibility of the atrial fibrillation screening result of the bracelet 100.

The controller can generate operation control signals according to the instruction operation code and timing signals to complete the control of fetching instructions and executing instructions.

A memory may also be provided in the processor 610 to store instructions and data. In some embodiments, the memory in the processor 610 is a cache memory. The memory can store instructions or data that have just been used or recycled by the processor 610. If the processor 610 needs to use the instruction or data again, it can be directly called from the memory. Repeated accesses are avoided, the waiting time of the processor 610 is reduced, and the efficiency of the system is improved.

In some embodiments, the processor 610 may include one or more interfaces. The interface can include an integrated circuit (inter-integrated circuit, I2C) interface, an integrated circuit built-in audio (inter-integrated circuit sound, I2S) interface, a pulse code modulation (pulse code modulation, PCM) interface, and a universal asynchronous transmitter (universal asynchronous) interface. receiver/transmitter, UART) interface, mobile industry processor interface (MIPI), general-purpose input/output (GPIO) interface, subscriber identity module (SIM) interface, and / Or Universal Serial Bus (USB) interface, etc.

Micro USB interface, USB Type C interface, etc. The USB interface 630 can be used to connect a charger to charge the electronic device 600, and can also be used to transfer data between the electronic device 600 and peripheral devices. It can also be used to connect earphones and play audio through earphones. This interface can also be used to connect other electronic devices, such as AR devices.

It can be understood that the interface connection relationship between the modules illustrated in the embodiment of the present invention is merely a schematic description, and does not constitute a structural limitation of the electronic device 600. In other embodiments of the present application, the electronic device 600 may also adopt different interface connection modes in the foregoing embodiments, or a combination of multiple interface connection modes.

The charging management module 640 is used to receive charging input from the charger. The power management module 641 is used to connect the battery 642, the charging management module 640 and the processor 610. The power management module 641 receives input from the battery 642 and/or the charging management module 640, and supplies power to the processor 610, the internal memory 621, the display screen 694, the camera 693, and the wireless communication module 660. The power management module 641 can also be used to monitor parameters such as battery capacity, battery cycle times, and battery health status (leakage, impedance). In some other embodiments, the power management module 641 may also be provided in the processor 610. In other embodiments, the power management module 641 and the charging management module 640 may also be provided in the same device.

The wireless communication function of the electronic device 600 can be realized by the antenna 1, the antenna 2, the mobile communication module 650, the wireless communication module 660, the modem processor, and the baseband processor.

The antenna 1 and the antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in the electronic device 600 can be used to cover a single or multiple communication frequency bands. Different antennas can also be reused to improve antenna utilization. For example: Antenna 1 can be multiplexed as a diversity antenna of a wireless local area network. In other embodiments, the antenna can be used in combination with a tuning switch.

The mobile communication module 650 can provide a wireless communication solution including 2G/3G/4G/5G and the like applied to the electronic device 600. The wireless communication module 660 can provide applications on the electronic device 600 including wireless local area networks (WLAN) (such as wireless fidelity (Wi-Fi) networks), bluetooth (BT), and global navigation satellites. System (global navigation satellite system, GNSS), frequency modulation (FM), near field communication (NFC), infrared technology (infrared, IR) and other wireless communication solutions. The wireless communication module 660 may be one or more devices integrating at least one communication processing module. The wireless communication module 660 receives electromagnetic waves via the antenna 2, frequency modulates and filters the electromagnetic wave signals, and sends the processed signals to the processor 610. The wireless communication module 660 may also receive the signal to be sent from the processor 610, perform frequency modulation, amplify, and convert it into electromagnetic waves to radiate through the antenna 2.

In some embodiments, the electronic device 600 can communicate with the wristband 100 through the mobile communication module 650 or the wireless communication module 660.

In some embodiments, the antenna 1 of the electronic device 600 is coupled with the mobile communication module 650, and the antenna 2 is coupled with the wireless communication module 660, so that the electronic device 600 can communicate with the network and other devices through wireless communication technology. The wireless communication technology may include global system for mobile communications (GSM), general packet radio service (GPRS), code division multiple access (CDMA), broadband Code division multiple access (wideband code division multiple access, WCDMA), time-division code division multiple access (TD-SCDMA), long term evolution (LTE), BT, GNSS, WLAN, NFC , FM, and/or IR technology, etc. The GNSS may include global positioning system (GPS), global navigation satellite system (GLONASS), Beidou navigation satellite system (BDS), quasi-zenith satellite system (quasi -zenith satellite system, QZSS) and/or satellite-based augmentation systems (SBAS).

The electronic device 600 implements a display function through a GPU, a display screen 694, and an application processor. The GPU is an image processing microprocessor, which connects the display screen 694 and the application processor. The GPU is used to perform mathematical and geometric calculations and is used for graphics rendering. The processor 610 may include one or more GPUs that execute program instructions to generate or change display information.

The electronic device 600 can realize a shooting function through an ISP, a camera 693, a video codec, a GPU, a display screen 694, and an application processor.

The external memory interface 620 may be used to connect an external memory card, such as a Micro SD card, so as to expand the storage capacity of the electronic device 600. The external memory card communicates with the processor 610 through the external memory interface 620 to realize the data storage function. For example, save music, video and other files in an external memory card.

The internal memory 621 may be used to store computer executable program code, where the executable program code includes instructions. The internal memory 621 may include a program storage area and a data storage area. Among them, the storage program area can store an operating system, an application program (such as a sound playback function, an image playback function, etc.) required by at least one function, and the like. The data storage area can store data (such as audio data, phone book, etc.) created during the use of the electronic device 600. In addition, the internal memory 621 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, a universal flash storage (UFS), and the like. The processor 610 executes various functional applications and data processing of the electronic device 600 by running instructions stored in the internal memory 621 and/or instructions stored in a memory provided in the processor.

The electronic device 600 can implement audio functions through an audio module 670, a speaker 670A, a receiver 670B, a microphone 670C, a headphone interface 670D, and an application processor. For example, music playback, recording, etc.

The button 690 includes a power button, a volume button, and so on. The button 690 may be a mechanical button. It can also be a touch button. The electronic device 600 may receive key input, and generate key signal input related to user settings and function control of the electronic device 600.

The motor 691 can generate vibration prompts. The motor 691 can be used for incoming call vibration notification, and can also be used for touch vibration feedback. For example, touch operations applied to different applications (such as photographing, audio playback, etc.) can correspond to different vibration feedback effects. Acting on touch operations in different areas of the display screen 694, the motor 691 can also correspond to different vibration feedback effects. Different application scenarios (for example: time reminding, receiving information, alarm clock, games, etc.) can also correspond to different vibration feedback effects. The touch vibration feedback effect can also support customization.

The indicator 692 can be an indicator light, which can be used to indicate the charging status, power change, and can also be used to indicate messages, missed calls, notifications, and so on.

The SIM card interface 695 is used to connect to the SIM card.

Referring now to FIG. 7, shown is a block diagram of an electronic device 700 capable of implementing the functions of the electronic device 200 shown in FIG. 1 according to an embodiment of the present application. In one embodiment, the electronic device 700 may include one or more processors 704, a system control logic 708 connected to at least one of the processors 704, a system memory 712 connected to the system control logic 708, and a system control logic 708. A non-volatile memory (NVM) 717 is connected, and a network interface 720 is connected to the system control logic 708.

In some embodiments, the processor 704 may include one or more single-core or multi-core processors. In some embodiments, the processor 704 may include any combination of a general-purpose processor and a special-purpose processor (for example, a graphics processor, an application processor, a baseband processor, etc.). In an embodiment where the electronic device 700 adopts an eNB (Evolved Node B) or a RAN (Radio Access Network) controller, the processor 704 may be configured to execute various conforming embodiments, for example, , One or more of the multiple embodiments described above.

In some embodiments, the system control logic 708 may include any suitable interface controller to provide any suitable interface to at least one of the processors 704 and/or any suitable device or component in communication with the system control logic 708.

In some embodiments, the system control logic 708 may include one or more memory controllers to provide an interface to the system memory 712. The system memory 712 may be used to load and store data and/or instructions. In some embodiments, the memory 712 of the electronic device 700 may include any suitable volatile memory, such as a suitable dynamic random access memory (DRAM).

The NVM/memory 717 may include one or more tangible, non-transitory computer-readable media for storing data and/or instructions. In some embodiments, the NVM/memory 717 may include any suitable non-volatile memory such as flash memory and/or any suitable non-volatile storage device, such as HDD (Hard Disk Drive, hard disk drive), CD (Compact Disc , At least one of an optical disc drive and a DVD (Digital Versatile Disc, Digital Versatile Disc) drive.

The NVM/memory 717 may include a part of storage resources installed on the apparatus of the electronic device 700, or it may be accessed by the device, but not necessarily a part of the device. For example, the NVM/storage 717 can be accessed through the network via the network interface 720.

In particular, the system memory 712 and the NVM/memory 717 may respectively include: a temporary copy and a permanent copy of the instruction 724. The instructions 724 may include instructions that, when executed by at least one of the processors 704, cause the electronic device 700 to implement the methods shown in FIGS. 2-4. In some embodiments, instructions 724, hardware, firmware, and/or software components thereof may additionally/alternatively be placed in system control logic 708, network interface 720, and/or processor 704.

The network interface 720 may include a transceiver, which is used to provide a radio interface for the electronic device 700 to communicate with any other suitable devices (such as a front-end module, an antenna, etc.) through one or more networks. In some embodiments, the network interface 720 may be integrated with other components of the electronic device 700. For example, the network interface 720 may be integrated in at least one of the processor 704, the system memory 712, the NVM/memory 717, and a firmware device (not shown) with instructions. When at least one of the processor 704 executes the When instructed, the electronic device 700 implements the method shown in FIGS. 2-4.

The network interface 720 may further include any suitable hardware and/or firmware to provide a multiple input multiple output radio interface. For example, the network interface 720 may be a network adapter, a wireless network adapter, a telephone modem, and/or a wireless modem.

In one embodiment, at least one of the processors 704 may be packaged with the logic of one or more controllers for the system control logic 708 to form a system in package (SiP). In one embodiment, at least one of the processors 704 may be integrated on the same die with the logic of one or more controllers for the system control logic 708 to form a system on chip (SoC).

The electronic device 700 may further include: an input/output (I/O) device 732. The I/O device 732 may include a user interface to enable a user to interact with the electronic device 700; the design of the peripheral component interface enables the peripheral component to also interact with the electronic device 700. In some embodiments, the electronic device 700 further includes a sensor for determining at least one of environmental conditions and location information related to the electronic device 700.

In some embodiments, the user interface may include, but is not limited to, a display (e.g., liquid crystal display, touch screen display, etc.), speakers, microphones, one or more cameras (e.g., still image cameras and/or video cameras), flashlights (e.g., LED flash) and keyboard.

In some embodiments, the peripheral component interface may include, but is not limited to, a non-volatile memory port, an audio jack, and a power interface.

In some embodiments, the sensor may include, but is not limited to, a gyroscope sensor, an accelerometer, a proximity sensor, an ambient light sensor, and a positioning unit. The positioning unit may also be part of or interact with the network interface 720 to communicate with components of the positioning network (eg, global positioning system (GPS) satellites).

Reference to "one embodiment" or "an embodiment" in the specification means that a specific feature, structure, or characteristic described in conjunction with the embodiment is included in at least one exemplary embodiment or technique according to the present disclosure. The appearances of the phrase "in one embodiment" in various places in the specification do not necessarily all refer to the same embodiment.

The present disclosure also relates to an operating device for executing the text. The apparatus may be specially constructed for the required purpose or it may comprise a general-purpose computer selectively activated or reconfigured by a computer program stored in the computer. Such a computer program can be stored in a computer readable medium, such as, but not limited to, any type of disk, including floppy disk, optical disk, CD-ROM, magneto-optical disk, read only memory (ROM), random access memory (RAM) , EPROM, EEPROM, magnetic or optical card, application specific integrated circuit (ASIC) or any type of medium suitable for storing electronic instructions, and each can be coupled to a computer system bus. In addition, the computer mentioned in the specification may include a single processor or may be an architecture involving multiple processors for increased computing power.

The processes and displays presented herein do not inherently involve any specific computers or other devices. Various general-purpose systems may also be used with programs according to the teachings herein, or it may prove convenient to construct more specialized devices to perform one or more method steps. The structure used for a variety of these systems is discussed in the following description. In addition, any specific programming language sufficient to implement the techniques and embodiments of the present disclosure may be used. Various programming languages can be used to implement the present disclosure, as discussed herein.

In addition, the language used in this specification has been primarily selected for readability and instructional purposes and may not be selected to describe or limit the disclosed subject matter. Therefore, this disclosure is intended to illustrate rather than limit the scope of the concepts discussed herein.

Claims (15)

1. A blood oxygen monitoring method based on electronic equipment, which is characterized in that it comprises:

   Acquiring the user's blood oxygen monitoring data monitored by the electronic device and the altitude of the location where the user is located;

   Extracting the characteristic value of the blood oxygen saturation value in the acquired blood oxygen monitoring data;

   Calculate the oxygen tolerance value of the user based on the extracted characteristic value and the initial blood oxygen saturation range value corresponding to the altitude, where the greater the oxygen tolerance value, the oxygen saturation of the user The greater the difference between the threshold of the degree value and the lowest blood oxygen saturation value in the initial blood oxygen saturation range value;

   According to the calculated oxygen tolerance value and the initial blood oxygen saturation range value, a threshold value of the blood oxygen saturation value of the user is calculated.
2. The method according to claim 1, characterized by comprising:

   Determining whether the blood oxygen saturation value in the user's blood oxygen monitoring data monitored by the electronic device is continuously lower than the blood oxygen saturation value threshold within a predetermined time period;

   In a case where it is determined that the blood oxygen saturation value is continuously lower than the threshold value of the blood oxygen saturation value, a warning message is sent to the user.
3. The method according to claim 1, wherein the extracting the characteristic value of the blood oxygen saturation value in the acquired blood oxygen monitoring data comprises:

   Extracting multiple of the interquartile range, truncated mean, triple mean, and mean absolute deviation, variance, quantile, and triple mean of the oxygen depletion index of the blood oxygen saturation value.
4. The method according to claim 3, further comprising:

   The oxygen hypoxia index is calculated according to the blood oxygen saturation value in the blood oxygen monitoring data.
5. The method according to claim 1, wherein the oxygen tolerance value of the user is calculated by the following formula:

   τ=t ₁ z ₁ +t ₂ z ₂ +t ₃ z ₃ +···++t _n z _n

   Among them, τ represents the user’s oxygen tolerance, t ₁ , t ₂ , t ₃ ···t _n are the characteristic values of blood oxygen saturation values in each group, z ₁ , z ₂ , z ₃ ···z _n are blood Oxygen difference coefficient.
6. The method according to claim 1, wherein the threshold value of the blood oxygen saturation value of the user is calculated by the following formula:

   TSPO=SPO _min +(SPO _max -SPO _min )τ

   Among them, TSPO represents the threshold of the user's blood oxygen saturation value, SPOmin represents the lowest blood oxygen saturation value in the initial blood oxygen saturation range value of the altitude where the user is located, and SPOmax represents the user's altitude oxygen saturation value in the initial blood oxygen saturation range value The highest blood oxygen saturation value, τ is the user’s oxygen tolerance value.
7. A blood oxygen monitoring method based on electronic equipment, which is characterized in that it comprises:

   The first electronic device obtains the user's blood oxygen monitoring data and the altitude of the location where the user is located, which is monitored by the second electronic device;

   Extracting, by the first electronic device, the characteristic value of the blood oxygen saturation value in the acquired blood oxygen monitoring data;

   The first electronic device calculates the oxygen tolerance value of the user based on the extracted characteristic value and the initial blood oxygen saturation range value corresponding to the altitude, where the larger the oxygen tolerance value, the higher the oxygen tolerance value. The greater the difference between the threshold of the user's blood oxygen saturation value and the lowest blood oxygen saturation value in the initial blood oxygen saturation range value;

   The first electronic device calculates the threshold value of the blood oxygen saturation value of the user according to the calculated oxygen tolerance value and the initial blood oxygen saturation range value.
8. The method according to claim 7, characterized in that it comprises:

   Acquiring, by the first electronic device, the blood oxygen saturation value in the blood oxygen monitoring data of the user that is monitored by the second electronic device within a predetermined time period;

   Determining, by the first electronic device, whether the acquired blood oxygen saturation value within the predetermined time period is continuously lower than the threshold value of the blood oxygen saturation value;

   The first electronic device sends a warning message to the user in a case where it is determined that the blood oxygen saturation value is continuously lower than the threshold value of the blood oxygen saturation value.
9. The method according to claim 7, characterized in that it comprises:

   The characteristic value of the blood oxygen saturation value in the acquired blood oxygen monitoring data extracted by the first electronic device includes:

   The first electronic device extracts multiple of the interquartile range, truncated mean, and triple mean of the blood oxygen saturation value, and the mean absolute deviation, variance, quantile, and triple mean of the oxygen depletion index.
10. The method according to claim 9, further comprising:

    The first electronic device calculates the oxygen depletion index according to the blood oxygen saturation value in the blood oxygen monitoring data.
11. The method according to claim 7, wherein the oxygen tolerance value of the user is calculated by the following formula:

    τ=t ₁ z ₁ +t ₂ z ₂ +t ₃ z ₃ +···++t _n z _n

    Among them, τ represents the user’s oxygen tolerance, t ₁ , t ₂ , t ₃ ···t _n are the characteristic values of blood oxygen saturation values in each group, z ₁ , z ₂ , z ₃ ···z _n are blood Oxygen difference coefficient.
12. The method according to claim 7, wherein the threshold value of the blood oxygen saturation value of the user is calculated by the following formula:

    TSPO=SPO _min +(SPO _max -SPO _min )τ

    Among them, TSPO represents the threshold of the user's blood oxygen saturation value, SPOmin represents the lowest blood oxygen saturation value in the initial blood oxygen saturation range value of the altitude where the user is located, and SPOmax represents the user's altitude oxygen saturation value in the initial blood oxygen saturation range value The highest blood oxygen saturation value, τ is the user’s oxygen tolerance value.
13. An electronic device, characterized in that it comprises:

    An obtaining module, configured to obtain the blood oxygen monitoring data of the user and the altitude of the place where the user is located, detected by the electronic device;

    Feature value extraction module: used to extract the feature value of the blood oxygen saturation value in the acquired blood oxygen monitoring data;

    The blood oxygen difference coefficient calculation module calculates the oxygen tolerance value of the user based on the extracted characteristic value and the initial blood oxygen saturation range value corresponding to the altitude, where the greater the oxygen tolerance value, the The greater the difference between the threshold of the user's blood oxygen saturation value and the lowest blood oxygen saturation value in the initial blood oxygen saturation range value;

    The blood oxygen saturation value threshold calculation module is used to calculate the blood oxygen saturation value threshold of the user according to the calculated oxygen tolerance value and the initial blood oxygen saturation range value.
14. A machine-readable medium, characterized in that instructions are stored on the machine-readable medium, and when the instructions are executed on a machine, the machine executes the method according to any one of claims 1 to 12.
15. A system, comprising: a memory for storing instructions executed by one or more processors of the system, and a processor, which is one of the processors of the system, for executing any one of claims 1 to 12 Methods.

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