Wearable device based on semiconductor multi-parameter physiological signal monitoring and control method thereof

Abstract

The invention discloses a wearable device based on semiconductor multi-parameter physiological signal monitoring and a control method thereof, and belongs to the technical field of physiological signal acquisition, the wearable device comprises a wearing bracelet, the inner wall surface of the wearing bracelet is provided with a mounting groove; the integrated main body is arranged in the mounting groove, and at least two semiconductor sensors for monitoring different physiological signals are integrated on the integrated main body; the flexible collecting part is fixedly attached to the inner wall surface of the wearing bracelet, and a plurality of sweat collecting points which are uniformly distributed at intervals are arranged on the surface of the flexible collecting part. According to the wearable device and the control method thereof, physiological signals such as the heart rate, the blood pressure and the blood oxygen saturation degree and information such as the electrolyte concentration in sweat can be accurately collected, convenient, efficient and comprehensive health monitoring is provided, and a user is helped to know the physical condition of the user in real time.

Description

Technical Field

[0001] The present invention belongs to the technical field of physiological signal acquisition, and in particular relates to a wearable device based on semiconductor multi-parameter physiological signal monitoring and a control method thereof. Background Art

[0002] In today's health technology field, wearable devices have become an important tool for people to pay attention to their health status due to their convenience and real-time performance. Multi-parameter physiological signal monitoring wearable devices based on semiconductor technology are a key development direction. Semiconductor technology has significant advantages in sensor manufacturing due to its high precision, miniaturization and good integration, and can achieve accurate collection of multiple physiological signals.

[0003] Application No. 202311402317.3 discloses a physiological signal acquisition method, system and wearable device, which belong to the field of physiological signal acquisition technology and are applied to wearable devices equipped with an electrical skin acquisition module and a physiological signal acquisition module. The acquisition method includes: obtaining the electrical skin signal value collected by the electrical skin acquisition module; determining the current wearing state of the wearable device based on a preset electrical skin threshold and the electrical skin signal value; in response to the wearing state being an abnormal state, controlling the physiological signal acquisition module to stop collecting physiological signals. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a wearable device based on semiconductor multi-parameter physiological signal monitoring and a control method thereof, which can simultaneously collect multiple physiological signals such as heart rate, blood pressure, blood oxygen saturation, sweat information, etc., solving the problem that it is difficult to comprehensively reflect the health status of the human body in multiple dimensions.

[0005] To achieve the above object, the present invention is implemented by adopting the following technical solutions.

[0006] In a first aspect, the present invention provides a wearable device based on semiconductor multi-parameter physiological signal monitoring, comprising: A wearing bracelet, wherein an installation groove is provided on the inner wall surface of the wearing bracelet; An integrated body, which is disposed in the mounting groove and is integrated with at least two semiconductor sensors for monitoring different physiological signals; The flexible collection part is fixedly attached to the inner wall surface of the wearing bracelet and symmetrically arranged on both sides of the integrated body. A plurality of sweat collection points evenly spaced are arranged on the surface of the flexible collection part.

[0007] Furthermore, the bracelet is in the shape of a retractable and adjustable ring, and is provided with a detachable and lockably connected magnetic sliding lock.

[0008] Further, the magnetic attraction sliding lock includes a metal lock piece, a magnetic lock buckle and a lock groove; The metal lock piece is fixedly spliced at one end of the wearable bracelet and is at least located on the outer wall surface of the wearable bracelet. The lock groove is opened at the other end of the wearable bracelet, and the depth of the lock groove is not less than the length of the metal lock piece. The magnetic lock buckle slides resistively on the outer wall surface of the other end of the wearable bracelet and magnetically adsorbs and inserts the metal lock piece in the lock groove.

[0009] Further, a sliding groove is respectively opened on both side surfaces of the other end of the wearable bracelet. The magnetic lock buckle is in a U shape, and the two free ends are respectively buckled and slid in the sliding groove. A plurality of wrinkled protrusions which are evenly spaced and have a resistive friction with the wearable bracelet are arranged on the inner wall surface of the magnetic lock buckle.

[0010] Further, the sweat collection point includes a semiconductor electrode and an ion-sensitive membrane. The ion-sensitive membrane covers the surface of the semiconductor electrode and is selective for specific ions. The specific ions include sodium ions, potassium ions and chloride ions.

[0011] Further, a hydrophobic and breathable membrane is coated on the surface of the sweat collection point to prevent impurities and macromolecular substances in sweat from contaminating the electrode.

[0012] Further, the integrated body integrates a heart rate sensor, a blood pressure sensor and a blood oxygen saturation sensor, and the collected physiological signals at least include heart rate, blood pressure and blood oxygen saturation signals.

[0013] In a second aspect, the present invention provides a control method for a wearable device based on semiconductor multi-parameter physiological signal monitoring as described in any one of the first aspects, including the following steps: Step S1: Self-check the various semiconductor sensors, signal processing circuits and sweat collection points of the flexible acquisition part in the integrated body, as well as the preset sampling frequency and data storage interval parameters; Step S2: The heart rate sensor, blood pressure sensor and blood oxygen saturation sensor integrated in the integrated body start to collect corresponding physiological signals according to the preset sampling frequency; Step S3: Multiple groups of sweat collection points of the flexible acquisition part collect the change of the current signal between the ion-sensitive membrane and the semiconductor electrode of the sweat that penetrates the surface hydrophobic and breathable membrane in real time by contacting the skin of the wearer; Step S4: The signal processing module of the integrated body receives the electrical signals transmitted by each sensor and sweat collection point, and after amplification, filtering and analysis processing, extracts the heart rate, blood pressure, blood oxygen saturation and electrolyte concentration in sweat, and stores the obtained physiological signal data in the storage module of the integrated body according to the preset data storage interval. Step S5: When the preset transmission conditions are met, the communication module of the integrated body is started to transmit the physiological signal data stored in the storage module to an external smart phone, tablet computer or cloud server via wireless communication.

[0014] Furthermore, in step S2 to step S3, the sampling frequency of each sensor is automatically adjusted according to the activity state of the user: When it is detected that the user is in a stationary state, each sensor in the sampling body is switched to a low power consumption mode, and the sampling frequency of the heart rate, blood pressure, and blood oxygen saturation sensors is reduced; the sweat collection point is switched to a low power consumption mode, and the sampling frequency of the electrolyte concentration in the sweat is reduced; When it is detected that the user is in motion, the sensors in the sampling body are switched to high power consumption mode, and the sampling frequency of the heart rate, blood pressure, and blood oxygen saturation sensors is increased; the sweat collection point is switched to high power consumption mode, and the sampling frequency of the electrolyte concentration in the sweat is increased.

[0015] Furthermore, the heart rate sensor, blood pressure sensor, and blood oxygen saturation sensor integrated in the integrated body collect different physiological signals using a time-division multiplexing collection method.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the wearable device based on semiconductor multi-parameter physiological signal monitoring and its control method provided by the present invention is based on a wearable bracelet, which integrates an integrated main body and a flexible collection part. Through a variety of semiconductor sensors and advanced signal processing technologies, it can accurately collect physiological signals such as heart rate, blood pressure, blood oxygen saturation, and information such as electrolyte concentration in sweat. In addition, the control method covers the entire process from device initialization to signal acquisition, processing, analysis, and data transmission and display, and adopts a variety of technical means to ensure the accuracy, reliability of signal acquisition and low power consumption of the device; it can provide users with convenient, efficient and comprehensive health monitoring means, help users understand their physical condition in real time, discover potential health problems in a timely manner, and provide a certain degree of strong support for health management and disease prevention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the three-dimensional structure of a wearable device based on semiconductor multi-parameter physiological signal monitoring provided by an embodiment of the present invention.

[0018] Figure 2 An overall flow chart of a control method for a wearable device based on semiconductor multi-parameter physiological signal monitoring provided by an embodiment of the present invention.

[0019] Figure 3 A block diagram of an architecture for interaction between a wearable device and an external device provided in an embodiment of the present invention.

[0020] Figure 4 An embodiment of the present invention provides a sampling frequency adjustment view based on activity status.

[0021] Figure 5 A time-division multiplexing acquisition mode view provided in an embodiment of the present invention.

[0022] In the figure: 1. Wearing the bracelet; 2. Integrated main body; 3. Flexible collection part; 4. Metal lock piece; 5. Magnetic lock; 6. Collection point. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances. Example

[0026] like Figure 1 As shown, an embodiment of the present invention provides a wearable device based on semiconductor multi-parameter physiological signal monitoring, including a wearable bracelet 1, an integrated body 2 and a flexible collection part 3.

[0027] A wearing bracelet 1 has an installation groove on its inner wall surface.

[0028] The integrated body 2 is disposed in the installation groove and integrates at least two semiconductor sensors for monitoring different physiological signals.

[0029] The flexible acquisition part 3 is fixedly attached to the inner wall surface of the wearable bracelet and symmetrically arranged on both sides of the integrated body. A number of sweat acquisition points are evenly distributed on the surface of the flexible acquisition part.

[0030] In this embodiment, an installation groove is formed in the wearable bracelet 1, and the integrated body 2 is detachably installed in the installation groove. The inner wall surface of the wearable bracelet 1 is fixedly attached with the flexible acquisition part 3, and a plurality of groups of sweat acquisition points 6 are evenly distributed on the inner wall surface of the flexible acquisition part 3. When wearing the wearable bracelet 1, the flexible acquisition part 3 is attached to the skin of the wearer's or user's wrist. The multiple groups of sweat acquisition points 6 are used to monitor and detect the human sweat information. The integrated body 2 is also attached to the wearer's or user's wrist. The integrated body 2 is used to collect multiple physiological signals, at least including heart rate, blood pressure, and blood oxygen saturation signals. Since the flexible acquisition part 3 has a large contact area with the human skin, the multiple groups of sweat acquisition points 6 can more detailedly monitor the human sweat information.

[0031] The wearable bracelet 1 is in the shape of a telescopic adjustable ring and is equipped with a detachable and snap-connected magnetic sliding lock.

[0032] The magnetic sliding lock includes a metal lock piece 4, a magnetic lock buckle 5, and a lock groove.

[0033] The metal lock piece 4 is fixedly spliced at one end of the wearable bracelet 1 and is at least located on the outer wall surface of the wearable bracelet. The lock groove is formed at the other end of the wearable bracelet 1, and the depth of the lock groove is not less than the length of the metal lock piece 4. The magnetic lock buckle 5 slides resistively on the outer wall surface of the other end of the wearable bracelet 1 and is magnetically adsorbed to the metal lock piece 4 inserted into the lock groove.

[0034] A sliding groove is formed on each of the two side surfaces of the other end of the wearable bracelet 1. The magnetic lock buckle is in a U shape, and the two free ends are respectively buckled and slid in the sliding groove. A number of evenly spaced and resistive friction wrinkles are provided on the inner wall surface of the magnetic lock buckle 5 to generate sliding resistance and prevent the lock buckle and the lock piece from moving back and forth along the lock groove.

[0035] The magnetic lock buckle 5 is arranged on the side close to the metal lock piece 4, and the metal lock piece 4 is fitted to the wearer's wrist by the magnetic force adsorption between the metal lock piece 4 and the magnetic lock buckle 5, so that the wearer's wrist can be better fixed and worn on the wearer's wrist, and the wearer can easily adjust the tightness of the wearer's wrist according to the thickness of the wrist, and ensure that the wearer's wrist can be worn stably without causing discomfort of being too tight or too loose to the wearer, thereby greatly improving the wearing comfort and convenience.

[0036] In this embodiment, the sweat collection point 6 is based on the principle of semiconductor electrochemical sensor. When sweat contacts the collection point, the active substance on the electrode surface will chemically react with the ions in the sweat to generate a current signal. According to the Nernst equation, the current signal is related to the ion concentration, thereby realizing the monitoring of information such as the electrolyte concentration in the sweat and providing users with richer physiological data.

[0037] The multiple groups of sweat collection points 6 of the flexible collection part 3 are used for sweat information monitoring, and the semiconductor electrochemical sensor used is used. Specifically, the sweat collection point 6 is composed of a semiconductor electrode and an electrolyte solution, and the surface of the electrode is covered with a sensitive membrane that is selective for specific ions (sodium ions, potassium ions, chloride ions, etc.); when sweat contacts the collection point, the ions in the sweat will reach the sensitive membrane on the electrode surface through diffusion. Since the sensitive membrane has different selectivity and affinity for different ions, the ions will transfer charge between the sensitive membrane and the electrode, thereby generating a current on the electrode, and the magnitude of the current is proportional to the concentration of the corresponding ions in the sweat. For example, for sodium ion detection, the sodium ions will undergo an oxidation-reduction reaction with the electrode under the action of the sensitive membrane, generating a measurable current signal.

[0038] In order to improve the performance and stability of the sensor, the sweat collection point 6 uses nano-scale semiconductor materials to prepare electrodes and sensitive membranes, increase the specific surface area of ​​the electrodes, and improve the sensitivity and response speed of the sensor; a hydrophobic and breathable membrane is coated on the surface of the sensor to prevent impurities and macromolecules in the sweat from contaminating the electrodes, while ensuring that ions in the sweat can pass smoothly; and by optimizing the composition and concentration of the electrolyte solution, the potential window and ion selectivity of the sensor are adjusted, so that it can accurately detect the ion concentration in sweat within a wider concentration range.

[0039] In addition, multiple sweat collection points 6 are evenly distributed on the flexible collection part 3, which can realize multi-point monitoring of sweat components. Through comprehensive analysis of data from multiple collection points, the distribution and changes of sweat components can be more accurately evaluated, making sweat monitoring more accurate and reliable, and providing users with richer physiological data.

[0040] like Figure 3 As shown, the integrated body integrates a heart rate sensor, a blood pressure sensor, and a blood oxygen saturation sensor, and the collected physiological signals include at least heart rate, blood pressure, and blood oxygen saturation signals.

[0041] In this embodiment, the integrated body 2 integrates various semiconductor sensors and signal processing circuits.

[0042] For example, heart rate monitoring uses the principle of photoplethysmography (PPG) to detect changes in light reflection or absorption caused by changes in blood volume to obtain heart rate signals. Semiconductor-based optical detection technology has the characteristics of high precision and low power consumption.

[0043] Blood pressure monitoring uses a semiconductor-based pressure sensor to estimate blood pressure by detecting pressure fluctuations in the arteries at the wrist. Compared with traditional blood pressure measurement methods, this semiconductor pressure sensor is small in size, highly accurate, and has a fast response speed, making blood pressure monitoring more convenient.

[0044] Blood oxygen saturation detection uses semiconductor light-emitting elements to emit light of a specific wavelength. After passing through the skin and tissue, the light signal is received by a semiconductor photoelectric sensor and the blood oxygen saturation is calculated based on the change in the light signal. The combined application of this semiconductor photoelectric device realizes non-invasive, real-time monitoring of blood oxygen saturation.

[0045] The integration of the above-mentioned sensors and technologies enables the device to accurately collect multiple physiological signals in a small space.

[0046] like Figure 2 As shown, an embodiment of the present invention also provides a control method for a wearable device based on semiconductor multi-parameter physiological signal monitoring, comprising the following steps: Step S1: self-check various semiconductor sensors, signal processing circuits and sweat collection points 6 of the flexible collection part 3 in the integrated body 2, as well as the pre-set sampling frequency and data storage interval parameters.

[0047] When the user puts on the wearable device, the device automatically starts the initialization program. First, the various semiconductor sensors, signal processing circuits and sweat collection points 6 of the flexible collection part 3 in the integrated body 2 are self-checked to ensure that each component works normally.

[0048] At the same time, the communication module of the device is initialized to put it in standby state, ready to receive and send data. In addition, according to the parameters pre-set by the user (such as sampling frequency, data storage interval, etc.), the working mode of the device is initialized and configured to prepare for subsequent physiological signal monitoring.

[0049] Step S2: The heart rate sensor, blood pressure sensor, and blood oxygen saturation sensor integrated in the integrated body 2 begin to collect corresponding physiological signals according to a preset sampling frequency.

[0050] The semiconductor sensors such as the heart rate sensor, blood pressure sensor, and blood oxygen saturation sensor in the integrated body 2 begin to collect corresponding physiological signals according to a preset sampling frequency.

[0051] For example, the heart rate sensor emits light several times per minute and receives reflected light to monitor heart rate changes in real time; the blood pressure sensor continuously detects pressure fluctuations in the wrist artery to obtain blood pressure data; the blood oxygen saturation sensor alternately emits red light and infrared light, and calculates the blood oxygen saturation value by detecting changes in the light signal.

[0052] Step S3: The multiple groups of sweat collection points 6 of the flexible collection part are in contact with the wearer's skin to collect the current signal changes between the ion-sensitive membrane and the semiconductor electrode of the sweat that passes through the surface hydrophobic and breathable membrane in real time.

[0053] The multiple sets of sweat collection points 6 of the flexible collection part 3 also start working, and monitor the changes of information such as electrolyte concentration in sweat in real time through contact with the skin. The collected physiological signals are first converted into electrical signals and then transmitted to the signal processing module in the integrated body 2.

[0054] Step S4: The signal processing module of the integrated body receives the electrical signals transmitted by each sensor and sweat collection point, extracts the heart rate, blood pressure, blood oxygen saturation, and electrolyte concentration in sweat after amplification, filtering, and analysis, and stores the acquired physiological signal data in the storage module of the integrated body according to the preset data storage interval.

[0055] After receiving the electrical signals from the sensors and collection points, the signal processing module of the integrated body performs a series of processing on them. It performs amplification operations to amplify the weak electrical signals to a suitable amplitude for subsequent processing, and uses filtering algorithms to remove noise and interference in the signals to improve the signal-to-noise ratio.

[0056] For heart rate signals, digital filtering technology is used to remove interference factors such as motion artifacts to ensure the accuracy of heart rate data; for blood pressure signals, the pressure fluctuation signal is analyzed and processed through an algorithm to extract key parameters such as systolic pressure and diastolic pressure; for blood oxygen saturation signals, the blood oxygen saturation value is calculated according to the changing pattern of the optical signal.

[0057] In addition, the sweat information change signal collected by the flexible collection part 3 is analyzed. For example, the user's dehydration risk is analyzed based on the changing trend of the electrolyte concentration in the sweat, combined with the user's exercise status and environmental factors; the physiological signal data after processing and analysis will be stored in the storage module of the device, and updated and managed in real time according to the preset strategy.

[0058] Step S5: When the preset transmission conditions are met, the communication module of the integrated body is started to transmit the physiological signal data stored in the storage module to an external smart phone, tablet computer or cloud server via wireless communication.

[0059] When the preset transmission conditions are met (such as timed transmission, manual transmission triggered by the user, etc.), the communication module of the device is started, and the physiological signal data stored in the device is transmitted to the external device (smartphone, tablet or cloud server) through wireless communication. On the external device, the corresponding application will receive and display these physiological signal data, and present them to the user in the form of intuitive charts, numerical values, etc., so that the user can view and understand his or her physical condition. At the same time, the application will further analyze and process the received data to provide users with health advice and early warning information. For example, if the heart rate data is abnormally high or the blood oxygen saturation is continuously low, the application will promptly remind the user to rest or seek medical treatment; if the electrolyte concentration in the sweat shows that the user may be dehydrated, the application will suggest that the user replenish water and electrolytes in time.

[0060] like Figure 4 As shown, the sampling frequency of each sensor is automatically adjusted according to the user's activity status: When it is detected that the user is in a static state, each sensor in the sampling body switches to low power mode, reducing the sampling frequency of the heart rate, blood pressure, and blood oxygen saturation sensors; the sweat collection point switches to low power mode, reducing the sampling frequency of the electrolyte concentration in the sweat; When it is detected that the user is in motion, the sensors in the sampling body switch to high power consumption mode, increasing the sampling frequency of the heart rate, blood pressure, and blood oxygen saturation sensors; the sweat collection point switches to high power consumption mode, increasing the sampling frequency of the electrolyte concentration in the sweat.

[0061] like Figure 5 As shown, the heart rate sensor, blood pressure sensor, and blood oxygen saturation sensor integrated in the integrated body use a time-division multiplexing acquisition method to collect different physiological signals.

[0062] For different types of physiological signals, a time-division multiplexing acquisition method is adopted. Since the change frequency and acquisition requirements of signals such as heart rate, blood pressure, and blood oxygen saturation are different, time-division multiplexing can reasonably allocate acquisition resources and avoid mutual interference between signals while ensuring acquisition accuracy. For example, blood pressure signal acquisition is arranged in the interval between heart rate signal acquisition; blood oxygen saturation signal is acquired at an appropriate time point based on its relatively stable characteristics.

[0063] In addition, the device monitors the working status and signal quality of the sensor in real time. When a sensor is found to be abnormal or the signal quality is degraded, it automatically starts the backup sensor or takes error correction measures, such as re-collection and data interpolation, to ensure that the collected physiological signal data is complete and accurate.

[0064] At the same time, in order to reduce the impact of environmental factors on signal acquisition, the device has built-in environmental sensors such as temperature and humidity to monitor environmental parameters in real time, and adaptively adjust the physiological signal acquisition and processing algorithms according to environmental changes. For example, in a high temperature and high humidity environment, the sweat information collection and analysis algorithm is optimized to improve data accuracy.

[0065] In this embodiment, in the device initialization step, various semiconductor sensors, signal processing circuits, and collection points of the flexible collection unit are automatically self-checked to ensure that each component is working properly. At the same time, the communication module of the device is initialized, and the working mode of the device is initialized and configured according to the parameters pre-set by the user, so as to prepare for subsequent monitoring, thereby improving the usability and reliability of the device. In the physiological signal collection step, the sampling frequency and working parameters of the sensor are automatically adjusted according to the user's activity status, and a time-division multiplexing collection method is adopted to monitor the working status and signal quality of the sensor in real time and take corresponding measures, and a built-in environmental sensor is used to adaptively adjust the collection and processing algorithms according to environmental changes.

[0066] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A wearable device based on semiconductor multi-parameter physiological signal monitoring, characterized in that: Including: A wearable bracelet, on the inner wall surface of which there is an installation groove; An integrated body, which is arranged in the installation groove and integrates at least two semiconductor sensors for monitoring different physiological signals; A flexible acquisition part, which is fixedly attached to the inner wall surface of the wearable bracelet and symmetrically arranged on both sides of the integrated body. On the surface of the flexible acquisition part, there are a number of sweat acquisition points evenly spaced.

2. The wearable device based on semiconductor multi-parameter physiological signal monitoring according to claim 1, characterized in that: The wearable bracelet is in a ring shape that can be telescopically adjusted, and is equipped with a detachable and lock-connected magnetic sliding lock.

3. The wearable device based on semiconductor multi-parameter physiological signal monitoring according to claim 2, characterized in that: The magnetic sliding lock includes a metal lock piece, a magnetic lock buckle and a lock groove; The metal lock piece is fixedly spliced at one end of the wearable bracelet and is at least located on the outer wall surface of the wearable bracelet. The lock groove is opened at the other end of the wearable bracelet, and the depth of the lock groove is not less than the length of the metal lock piece. The magnetic lock buckle slides resistively on the outer wall surface of the other end of the wearable bracelet and is magnetically adsorbed to insert the metal lock piece in the lock groove.

4. The wearable device based on semiconductor multi-parameter physiological signal monitoring according to claim 3 is characterized in that: On both side surfaces of the other end of the wearable bracelet, there is a chute respectively. The magnetic lock buckle is in a U shape, and its two free ends are respectively buckled and slid in the chute. On the inner wall surface of the magnetic lock buckle, there are a number of evenly spaced fold protrusions that have resistive friction with the wearable bracelet.

5. The wearable device based on semiconductor multi-parameter physiological signal monitoring according to any one of claims 1 to 4, characterized in that: The sweat acquisition point includes a semiconductor electrode and an ion-sensitive membrane. The ion-sensitive membrane covers the surface of the semiconductor electrode and is selective for specific ions. The specific ions include sodium ions, potassium ions and chloride ions.

6. The wearable device based on semiconductor multi-parameter physiological signal monitoring according to claim 5, characterized in that: A hydrophobic and breathable membrane is coated on the surface of the sweat acquisition point to prevent impurities and macromolecular substances in sweat from contaminating the electrode.

7. The wearable device based on semiconductor multi-parameter physiological signal monitoring according to claim 1, characterized in that: The integrated body integrates a heart rate sensor, a blood pressure sensor and a blood oxygen saturation sensor. The physiological signals collected at least include heart rate, blood pressure and blood oxygen saturation signals.

8. A control method for a wearable device based on semiconductor multi-parameter physiological signal monitoring as claimed in any one of claims 1 to 7, characterized in that: Including the following steps: Step S1: Self-check various semiconductor sensors, signal processing circuits and sweat acquisition points of the flexible acquisition part in the integrated body, as well as preset sampling frequencies and data storage interval parameters; Step S2: The heart rate sensor, blood pressure sensor and blood oxygen saturation sensor integrated in the integrated body start to collect corresponding physiological signals according to the preset sampling frequency; Step S3: Multiple groups of sweat acquisition points of the flexible acquisition part collect the change of the current signal between the ion-sensitive membrane and the semiconductor electrode of the sweat that penetrates the surface hydrophobic and breathable membrane in real time by contacting the wearer's skin; Step S4: The signal processing module of the integrated body receives the electrical signals transmitted by each sensor and sweat acquisition point. After amplification, filtering and analysis processing, it extracts the heart rate, blood pressure, blood oxygen saturation and electrolyte concentration in sweat, and stores the obtained physiological signal data in the storage module of the integrated body according to the preset data storage interval; Step S5: When the preset transmission condition is met, start the communication module of the integrated body, and transmit the physiological signal data stored in the storage module to an external smart phone, tablet or cloud server by wireless communication; 9. The control method of a wearable device based on semiconductor multi-parameter physiological signal monitoring according to claim 8, characterized in that: In steps S2 to S3, automatically adjust the sampling frequency of each sensor according to the user's activity state: When it is detected that the user is in a stationary state, each sensor in the sampling body switches to a low power consumption mode, reducing the sampling frequency of the heart rate, blood pressure, and blood oxygen saturation sensors; the sweat collection point switches to a low power consumption mode, reducing the sampling frequency of the electrolyte concentration in the sweat; When it is detected that the user is in motion, the sensors in the sampling body are switched to high power consumption mode, and the sampling frequency of the heart rate, blood pressure, and blood oxygen saturation sensors is increased; the sweat collection point is switched to high power consumption mode, and the sampling frequency of the electrolyte concentration in the sweat is increased.

10. The control method of a wearable device based on semiconductor multi-parameter physiological signal monitoring according to claim 9, characterized in that: The heart rate sensor, blood pressure sensor and blood oxygen saturation sensor integrated in the integrated body adopt a time-division multiplexing acquisition method to collect different physiological signals.

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