Skin-attached oxyhemoglobin saturation monitoring device and system based on wireless remote measurement
Through wireless telemetry, the skin-attached blood oxygen monitoring device uses light emitting diodes and photodetectors to obtain signals, and combined with wireless communication transmission, it solves the inconvenience of wearing and data stability of traditional blood oxygen monitoring equipment, achieves the improvement of comfort and reliability, and supports long-term continuous monitoring and remote data transmission.
Patent Information
- Application Number
- CN202510607697.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-13
- Publication Date
- 2025-08-05
AI Technical Summary
Traditional blood oxygen monitoring equipment relies on wired connections to restrict user activities, inconvenient wear, short battery life, and insufficient data transmission stability, making it impossible to achieve long-term continuous monitoring and remote synchronization of multiple users.
A skin-adhesive blood oxygen saturation monitoring device that uses wireless telemetry, including a blood oxygen sensor, a signal transmission module and a receiving instrument, uses light emitting diodes and photodetectors to obtain signals, transmit data through Bluetooth or wireless communication, and calculate and display blood oxygen saturation in the receiving instrument.
It realizes flexible attachment design and low-power wireless transmission, improves wear comfort and data reliability, supports real-time and accurate blood oxygen monitoring and remote data upload, adapts to users' daily activities, and provides efficient health management solutions.
Smart Images

Figure CN120419953A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of data processing technology, and in particular to a skin-attached blood oxygen saturation monitoring device and system based on wireless telemetry. Background Art
[0002] Traditional blood oxygen saturation monitoring devices, such as finger-clip pulse oximeters, can provide accurate monitoring data in the short term. However, these devices typically require direct contact with the skin and rely on wired connections, limiting patients' freedom of movement. Furthermore, the inconvenience of wearing these devices, their short battery life, and their inability to provide continuous monitoring make long-term monitoring a major challenge. Meanwhile, with the rapid development of wearable technology, a large number of wearable devices have emerged on the market, attempting to provide more convenient blood oxygen saturation monitoring solutions. However, these devices often have numerous shortcomings. Many wearable devices use rigid circuit designs, which can cause discomfort when worn, especially for extended periods. Furthermore, due to device design or technical limitations, existing wearable devices are susceptible to interference during exercise, resulting in inaccurate monitoring data. Furthermore, some devices have short battery life and require frequent charging, which is inconvenient for long-term use. Furthermore, existing wearable devices lack wireless telemetry technology. The lack of low-power, high-sensitivity wireless telemetry solutions makes it impossible to achieve remote, simultaneous monitoring of multiple users, significantly limiting their application in medical monitoring and health management. Summary of the Invention
[0003] The purpose of this application is to provide a skin-attached blood oxygen saturation monitoring device and system based on wireless telemetry, so as to solve the technical problems that traditional blood oxygen monitoring equipment relies on wired connections, resulting in limited user activities and insufficient data transmission stability.
[0004] In view of the above problems, the present application provides a skin-attached blood oxygen saturation monitoring device and system based on wireless telemetry.
[0005] In a first aspect, the present application provides a skin-attached blood oxygen saturation monitoring device based on wireless telemetry, the device comprising: a blood oxygen sensor, the blood oxygen sensor having an integrated light-emitting diode and a photodetector for acquiring an induced electrical signal; a signal transmission module, the signal transmission module being used to process and encode the induced electrical signal according to a preset monitoring frequency, and transmit the encoded signal to a receiving instrument; a receiving instrument, the receiving instrument being used to receive the encoded signal, decode the encoded signal, calculate the blood oxygen saturation based on the decoded data, and send the calculation result to a display screen for display.
[0006] In a second aspect, the present application provides a skin-attached blood oxygen saturation monitoring system based on wireless telemetry, which is used for a skin-attached blood oxygen saturation monitoring device based on wireless telemetry. The system includes: a memory for storing executable instructions; and a processor for executing the executable instructions stored in the memory.
[0007] One or more technical solutions provided in this application have at least the following technical effects or advantages:
[0008] The blood oxygen sensor integrates a light-emitting diode and a photodetector to acquire the induced electrical signal. The signal transmission module processes and encodes the induced electrical signal according to a preset monitoring frequency and transmits the encoded signal to a receiving device. The receiving device receives and decodes the encoded signal, calculates the blood oxygen saturation based on the decoded data, and sends the result to the display for display. This achieves the technical effect of improving wearing comfort and data reliability through a flexible adhesive design and low-power wireless transmission.
[0009] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, which can be implemented in accordance with the contents of the description, and to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are specifically listed below. It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will become easy to understand through the following description. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] In order to more clearly illustrate the technical solutions in this application or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and a person of ordinary skill in the art can obtain other drawings based on the provided drawings without creative work.
[0011] Figure 1 This is a schematic diagram of the structure of the skin-attached blood oxygen saturation monitoring device based on wireless telemetry in this application.
[0012] Figure 2 This is a flow chart of the skin-attached blood oxygen saturation monitoring system based on wireless telemetry in this application.
[0013] Description of the accompanying drawings: blood oxygen sensor 11, signal transmission module 12, receiving device 13, processor 21, memory 22, input device 23, output device 24. DETAILED DESCRIPTION
[0014] This application provides a skin-attached blood oxygen saturation monitoring device and system based on wireless telemetry to solve the technical problems that traditional blood oxygen monitoring equipment relies on wired connections, resulting in limited user activities and insufficient data transmission stability. It achieves the technical effect of improving wearing comfort and data reliability through flexible attachment design and low-power wireless transmission.
[0015] Below, the technical solutions in this application will be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of this application, rather than all the embodiments of this application. It should be understood that this application is not limited to the example embodiments described herein. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. It should also be noted that, for the convenience of description, only the parts related to this application, rather than all of them, are shown in the accompanying drawings.
[0016] For example 1, please refer to the attached Figure 1 The present application provides a skin-attached blood oxygen saturation monitoring device based on wireless telemetry, which specifically includes the following steps:
[0017] The blood oxygen sensor 11 integrates a light emitting diode and a photodetector to obtain an induced electrical signal.
[0018] Specifically, the blood oxygen sensor 11 is one of the core components of the device. Its main function is to obtain signals related to blood oxygen saturation through optical principles. The sensor integrates a light-emitting diode (LED) and a photodetector. Among them, the light-emitting diode is responsible for emitting light of a specific wavelength, usually red light and infrared light, which penetrates the skin tissue and is absorbed by the hemoglobin in the blood. The photodetector is responsible for receiving the light signal after passing through the skin. After being absorbed by the blood, the intensity of the light will change. The photodetector captures this change and converts the light signal into an electrical signal to reflect the oxygen concentration in the blood. This design can achieve accurate blood oxygen saturation monitoring without penetrating the skin or performing invasive operations. It is a safe, non-invasive and convenient monitoring method.
[0019] Furthermore, the blood oxygen sensor 11 is made of flexible material.
[0020] In a preferred embodiment, the blood oxygen sensor 11 is made of a flexible material, mainly to improve the comfort and adaptability of wearing. The flexible material can be medical silicone or a similar soft material. Such materials can fit closely to the skin surface, provide a better fit, and avoid the discomfort caused by traditional hard materials. Due to the flexible properties of the material, the blood oxygen sensor 11 can be flexibly adjusted as the shape and movement of the skin change, ensuring that there is no pressure or irritation when worn for a long time, greatly improving the user's wearing experience. In addition, the flexible material also has good air permeability and comfort, allowing the wearer to be almost undisturbed when performing daily activities or sleeping, thereby improving the continuity and accuracy of monitoring.
[0021] The signal transmission module 12 is used to process and encode the induced electrical signal according to a preset monitoring frequency, and transmit the encoded signal to the receiving device 13.
[0022] Specifically, the signal transmission module 12 is a crucial component of the blood oxygen saturation monitoring device. Its function is to process and encode the electrical signals acquired by the blood oxygen sensor 11 according to a preset monitoring frequency and transmit the processed signals to the receiving device 13. Specifically, the signal transmission module 12 first digitizes the electrical signals collected by the sensor, converting them into a transmittable coded signal to ensure signal integrity and accuracy. To meet diverse monitoring needs, the signal transmission module 12 can also dynamically adjust the sampling frequency and the corresponding data transmission frequency based on actual conditions, thereby optimizing battery life and reducing power consumption while ensuring data accuracy. Furthermore, when there are no significant data changes, the signal transmission module 12 can reduce the data transmission frequency, effectively extending the device's usability. Through this signal transmission module 12, the blood oxygen saturation monitoring device can achieve real-time, accurate data transmission without relying on a wired connection, greatly enhancing monitoring flexibility and ease of use. Furthermore, the signal transmission module 12 also supports remote data monitoring, ensuring immediate data upload and analysis, providing a more efficient health management solution.
[0023] Furthermore, the signal transmission module 12 transmits the coded signal to the receiving device 13 via Bluetooth or wireless communication.
[0024] In a preferred embodiment, signal transmission module 12 is responsible for transmitting the processed and encoded electrical signals from blood oxygen sensor 11 to receiving device 13 via Bluetooth or other wireless communication technology. Specifically, signal transmission module 12 converts the electrical signals generated by blood oxygen sensor 11 into transmittable encoded data, and then transmits this data to receiving device 13 in real time using Bluetooth or similar wireless communication methods. Through this wireless method, signal transmission module 12 ensures stable and rapid data transmission from blood oxygen sensor 11 to receiving device 13 without the need for any wired connection, thereby providing greater flexibility and convenience, making it easier for users to monitor blood oxygen levels during various activities.
[0025] The receiving device 13 is used to receive the coded signal, decode the coded signal, calculate the blood oxygen saturation according to the decoded data, and send the calculation result to the display screen for display.
[0026] Specifically, the receiving device 13 is an important component of the blood oxygen saturation monitoring device, which is mainly used to receive the coded signals from the signal transmission module 12 and decode these signals. The receiving device 13 first converts the received coded signals into usable raw data, and then calculates the blood oxygen saturation value based on the decoded data. The calculation process is based on the formula To ensure accurate measurement of blood oxygen saturation, SpO2 is blood oxygen saturation, AC red and AC infrared They are the AC signal part of red light and infrared light (that is, the change in light intensity, reflecting the pulse fluctuation in the blood), DC red and DC infrared They are the DC signal parts of red light and infrared light respectively (i.e. the amount of light absorbed in the blood, representing the static hemoglobin concentration). The calculation results will then be transmitted to the display screen through the interface, and the blood oxygen saturation value will be displayed in real time, which is convenient for users or medical staff to view and monitor. At the same time, the receiving instrument 13 also has a data storage function to store historical data for subsequent analysis and reference. In this way, the receiving instrument 13 can achieve real-time monitoring and visual display of data, thereby improving the convenience and practicality of blood oxygen monitoring.
[0027] Furthermore, this application includes:
[0028] Obtain a preset blood oxygen saturation tolerance range; determine whether the calculation result exceeds the preset blood oxygen saturation tolerance range, and if so, determine a deviation coefficient; adjust the preset monitoring frequency according to the size of the deviation coefficient to obtain an updated monitoring frequency.
[0029] In a preferred embodiment, a preset blood oxygen saturation tolerance interval is obtained. This range is typically set based on clinical standards or the user's health data and represents the normal fluctuation range of blood oxygen saturation values. For example, normal blood oxygen saturation is typically between 85% and 100%. However, for certain special cases or individuals, the tolerance interval may be adjusted, such as 95% to 100% for healthy adults and 97% to 100% for children. Subsequently, a determination is made as to whether the calculated result exceeds the preset blood oxygen saturation tolerance interval. If the calculated result exceeds the preset interval, indicating abnormal blood oxygen saturation, a deviation coefficient is calculated using the calculated result and the upper and lower limits of the tolerance interval to measure the degree of abnormality in the current blood oxygen level. Finally, the preset monitoring frequency is adjusted based on the magnitude of the deviation coefficient. If the deviation coefficient is large, indicating a significant abnormality in the blood oxygen status, the monitoring frequency is increased to enable more frequent data collection and real-time analysis. Conversely, if the deviation coefficient is small, the monitoring frequency can be reduced to conserve device battery power and reduce data transmission volume, thereby improving energy efficiency. Through the above steps, the monitoring frequency can be intelligently adjusted according to abnormal blood oxygen saturation, ensuring real-time response and optimizing device performance.
[0030] Furthermore, the deviation coefficient is obtained by calculating the difference between the preset blood oxygen saturation tolerance range and the calculation result, and then comparing the difference with the preset blood oxygen saturation tolerance range.
[0031] In one possible implementation, the current oxygen saturation calculation result is compared with a preset oxygen saturation tolerance range, and the difference between the current oxygen saturation and the upper or lower limit of the tolerance range is calculated, depending on whether the oxygen saturation value is high or low. If the oxygen saturation calculation result exceeds the upper limit, the difference is the difference between the current oxygen saturation and the upper limit; if the oxygen saturation calculation result is below the lower limit, the difference is the difference between the lower limit and the current oxygen saturation. The calculated difference is then divided by the preset oxygen saturation tolerance range to obtain a deviation coefficient. For example, if the preset oxygen saturation tolerance range is 90% to 100% (i.e., a range of 10%), and the calculated result is 102%, the difference is 102% - 100% = 2%, and the deviation coefficient is 2% / 10% = 0.2. This deviation coefficient can be used to adjust monitoring frequency, adjust early warning strategies, or optimize device power management, laying the foundation for subsequent response.
[0032] Furthermore, the receiving device 13 includes a storage unit for storing a set of historical blood oxygen saturation data in a preset time window.
[0033] In a preferred embodiment, the receiving instrument 13 is equipped with a storage unit, the main function of which is to store a set of historical blood oxygen saturation data within a preset time window. Specifically, the storage unit will save the blood oxygen saturation data continuously monitored and collected by the blood oxygen sensor 11 within a certain time range (for example, a few hours or a day). These data are organized into a set to facilitate subsequent analysis and query. The storage unit not only provides a storage function for historical data, but also ensures that the data will not be lost after the device is shut down or restarted, which is convenient for long-term health monitoring and trend analysis. Through this storage function, the receiving instrument 13 can support historical data backtracking to help users or medical staff analyze blood oxygen change trends.
[0034] Furthermore, this application includes:
[0035] The historical blood oxygen saturation data set is serialized in chronological order to obtain a historical blood oxygen saturation data sequence; a single-point gradient analysis is performed on the historical blood oxygen saturation data sequence, and anomaly identification is performed based on the analysis result to obtain an abnormality identification result; and blood oxygen saturation monitoring and early warning are performed based on the abnormality identification result.
[0036] In one feasible embodiment, the receiving device 13 first extracts a set of historical blood oxygen saturation data from a storage unit. This set includes blood oxygen saturation data collected over a period of time. The data is sorted chronologically from front to back to form a continuous sequence of historical blood oxygen saturation data. This process ensures temporal consistency of the data and facilitates subsequent analysis. The receiving device 13 then performs single-point gradient analysis on the historical blood oxygen saturation data sequence. The purpose of single-point gradient analysis is to calculate the rate of change between each data point and the previous data point, i.e., the trend of blood oxygen saturation change. By calculating these rates of change, the data fluctuation pattern can be identified and any abnormal changes can be detected. Based on the results of the single-point gradient analysis, the receiving device 13 then performs anomaly identification on the data using mean shift analysis, generating an anomaly identification result. Finally, based on the anomaly identification result, blood oxygen saturation monitoring and early warning are performed. If abnormal data is detected, an early warning signal is immediately issued, alerting the user or medical staff to any abnormal changes in blood oxygen levels. This warning information can be transmitted via a display screen, mobile phone application, or other communication methods to ensure timely intervention. This process can monitor changes in blood oxygen saturation in real time, promptly identify potential health risks, and provide corresponding warnings to ensure that the user's health is effectively protected.
[0037] Furthermore, this application includes:
[0038] Perform single-point gradient analysis on the historical blood oxygen saturation data sequence to obtain a historical blood oxygen saturation data gradient set; perform mean shift analysis on the historical blood oxygen saturation data gradient to determine a target historical blood oxygen saturation data gradient center; and perform anomaly identification on the historical blood oxygen saturation data gradient set based on the historical blood oxygen saturation data gradient center to obtain an anomaly identification result.
[0039] In one feasible embodiment, the receiving device 13 performs single-point gradient analysis on the historical blood oxygen saturation data sequence. By calculating the rate of change between each data point and the previous data point (i.e., the trend of blood oxygen saturation change), the blood oxygen saturation gradient at each time point is obtained. These gradient values together constitute a historical blood oxygen saturation data gradient set, reflecting the changes in blood oxygen saturation over different time periods. Subsequently, the obtained blood oxygen saturation data gradient set is subjected to mean shift analysis. This analysis method continuously calculates the local mean of the data gradient and shifts the gradient points toward this mean until all gradient points converge to a central position. This process can help determine a stable blood oxygen saturation data gradient center, i.e., the area where these gradient values are concentrated, reflecting the main trend or pattern of data changes. After determining the historical blood oxygen saturation data gradient center, the receiving device 13 performs anomaly identification on the blood oxygen saturation data gradient set based on this center value. If the gradient value of a representative data point deviates too far from the center value, exceeding a preset threshold range, it will be marked as an anomaly. The results of anomaly identification help to promptly detect abnormal fluctuations in blood oxygen saturation, providing a basis for subsequent health warnings. Through the above process, the receiving device 13 can effectively analyze the changing trend of historical blood oxygen data, identify abnormal conditions, provide users with timely health warnings, and help medical personnel make more effective intervention decisions.
[0040] Furthermore, this application includes:
[0041] According to the preset central bandwidth, a central neighborhood of the target historical blood oxygen saturation data gradient center is constructed in the historical blood oxygen saturation data gradient set; the mean of the central neighborhood is calculated to obtain a representative historical blood oxygen saturation gradient, and it is determined whether the representative historical blood oxygen saturation gradient is greater than or equal to a preset gradient threshold. If so, an abnormality recognition result is obtained.
[0042] In one feasible embodiment, based on a preset center bandwidth, the receiving device 13 determines the center of the target historical blood oxygen saturation data gradient within the set of historical blood oxygen saturation data gradients. Subsequently, based on the center bandwidth, a neighborhood region surrounding the center is selected to construct a center neighborhood. This neighborhood region includes data points with gradient values within a certain range. These points are relatively concentrated near the gradient center, reflecting the normal range of blood oxygen fluctuation. The receiving device 13 then processes the data within the center neighborhood and calculates the neighborhood mean to obtain a representative historical blood oxygen saturation gradient. This mean represents the typical fluctuation of blood oxygen saturation within this region and accurately reflects the trend of blood oxygen variation under normal conditions. A smaller gradient indicates relatively stable blood oxygen saturation fluctuations, while a larger gradient indicates drastic fluctuations. The receiving device 13 then compares the calculated representative historical blood oxygen saturation gradient with a preset gradient threshold. If the representative gradient is greater than or equal to the preset threshold, it indicates that the blood oxygen saturation fluctuations are large, exceeding the normal fluctuation range, and may be abnormal. In this case, the receiving device 13 marks the data as abnormal and generates an abnormality identification result. Through this process, abnormal situations with large fluctuations in blood oxygen saturation can be effectively identified, providing a basis for subsequent health monitoring and early warning.
[0043] In summary, the skin-attached blood oxygen saturation monitoring device based on wireless telemetry provided in the embodiments of the present application has the following technical effects:
[0044] A blood oxygen sensor 11, which has an integrated light-emitting diode and a photodetector for acquiring an induced electrical signal; a signal transmission module 12, which processes and encodes the induced electrical signal according to a preset monitoring frequency and transmits the encoded signal to a receiving device 13; and a receiving device 13, which receives and decodes the encoded signal, calculates the blood oxygen saturation based on the decoded data, and sends the calculated result to a display screen for display. Through the above steps, the technical problems of traditional blood oxygen monitoring equipment relying on wired connections, which restrict user activities, easily cause skin discomfort when worn for a long time, and lack data transmission stability, are solved. The technical effect of improving wearing comfort and data reliability through a flexible attachment design and low-power wireless transmission is achieved.
[0045] The second embodiment is based on the same inventive concept as the skin-attached blood oxygen saturation monitoring device based on wireless telemetry in the previous embodiment. Figure 2As shown, an embodiment of the present application also provides a skin-attached blood oxygen saturation monitoring system based on wireless telemetry, including a processor 21, a memory 22, an input device 23 and an output device 24; the number of processors 21 in the system can be one or more, and the processor 21, the memory 22, the input device 23 and the output device 24 can be connected via a bus or other means.
[0046] Memory 22, as a computer-readable storage medium, can be used to store software programs, computer-executable programs, and components, such as the program instructions / components corresponding to the wireless telemetry-based skin-attached blood oxygen saturation monitoring device in the embodiments of the present invention. Processor 21 executes the software programs, instructions, and components stored in memory 22 to implement various functional applications and data processing of the wireless telemetry-based skin-attached blood oxygen saturation monitoring device.
[0047] The skin-attached blood oxygen saturation monitoring system based on wireless telemetry provided in an embodiment of the present invention is used for a skin-attached blood oxygen saturation monitoring device based on wireless telemetry, and has the corresponding functional components and beneficial effects of the skin-attached blood oxygen saturation monitoring device based on wireless telemetry.
[0048] It should be noted that the order in which the embodiments of the present application are presented is for illustrative purposes only and does not necessarily represent the superiority or inferiority of the embodiments. Furthermore, the foregoing descriptions of specific embodiments of this specification are provided. Furthermore, the processes depicted in the accompanying drawings do not necessarily require the specific order or sequential sequence shown to achieve the desired results. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.
[0049] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.
[0050] This specification and drawings are merely illustrative of the present application and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of this application. Obviously, those skilled in the art may make various modifications and variations to this application without departing from the scope of this application. Thus, this application is intended to include such modifications and variations as fall within the scope of this application and its equivalents.
Claims
1. A skin-attached blood oxygen saturation monitoring device based on wireless telemetry, characterized in that: The device comprises: A blood oxygen sensor, wherein the blood oxygen sensor integrates a light-emitting diode and a photodetector for acquiring a sensed electrical signal; a signal transmission module, configured to process and encode the induced electrical signal according to a preset monitoring frequency, and transmit the encoded signal to a receiving device; The receiving device is used to receive the coded signal, decode the coded signal, calculate the blood oxygen saturation according to the decoded data, and send the calculation result to the display screen for display.
2. The skin-attached blood oxygen saturation monitoring device based on wireless telemetry according to claim 1, characterized in that: The receiving device includes a storage unit for storing a historical blood oxygen saturation data set within a preset time window.
3. The skin-attached blood oxygen saturation monitoring device based on wireless telemetry according to claim 2, characterized in that: include: Serializing the historical blood oxygen saturation data set in chronological order to obtain a historical blood oxygen saturation data sequence; Performing single-point gradient analysis on the historical blood oxygen saturation data sequence, and performing abnormality identification based on the analysis results to obtain an abnormality identification result; Blood oxygen saturation monitoring and early warning are performed based on the abnormal recognition results.
4. The skin-attached blood oxygen saturation monitoring device based on wireless telemetry according to claim 3, characterized in that: include: Performing single-point gradient analysis on the historical blood oxygen saturation data sequence to obtain a historical blood oxygen saturation data gradient set; Performing mean shift analysis on the historical blood oxygen saturation data gradient to determine the target historical blood oxygen saturation data gradient center; Anomaly identification is performed on the historical blood oxygen saturation data gradient set based on the historical blood oxygen saturation data gradient center to obtain an anomaly identification result.
5. The skin-attached blood oxygen saturation monitoring device based on wireless telemetry according to claim 4, characterized in that: include: Constructing a central neighborhood of the target historical blood oxygen saturation data gradient center in the historical blood oxygen saturation data gradient set according to a preset central bandwidth; The mean of the central neighborhood is calculated to obtain a representative historical blood oxygen saturation gradient, and it is determined whether the representative historical blood oxygen saturation gradient is greater than or equal to a preset gradient threshold. If so, an abnormality recognition result is obtained.
6. The skin-attached blood oxygen saturation monitoring device based on wireless telemetry according to claim 1, characterized in that: include: Get the preset blood oxygen saturation tolerance range; determining whether the calculated result exceeds the preset blood oxygen saturation tolerance range, and if so, determining a deviation coefficient; The preset monitoring frequency is adjusted according to the size of the deviation coefficient to obtain an updated monitoring frequency.
7. The skin-attached blood oxygen saturation monitoring device based on wireless telemetry according to claim 6, characterized in that: The deviation coefficient is obtained by calculating the difference between the preset blood oxygen saturation tolerance range and the calculation result, and then comparing the difference with the preset blood oxygen saturation tolerance range.
8. The skin-attached blood oxygen saturation monitoring device based on wireless telemetry according to claim 1, characterized in that: The blood oxygen sensor is made of flexible material.
9. The skin-attached blood oxygen saturation monitoring device based on wireless telemetry according to claim 1, characterized in that: The signal transmission module transmits the coded signal to the receiving device via Bluetooth or wireless communication.
10. A skin-attached blood oxygen saturation monitoring system based on wireless telemetry, characterized in that: The system is used in the skin-attached blood oxygen saturation monitoring device based on wireless telemetry according to any one of claims 1 to 9, comprising: a memory for storing executable instructions; A processor is configured to execute the executable instructions stored in the memory.