Data monitoring circuit and swimming cap

Abstract

The utility model relates to the technical field of circuits, in particular to a data monitoring circuit and a swimming cap, the data monitoring circuit comprises a control module, a blood oxygen and heart rate module, a three-axis sensor and a communication module, and the control module is respectively connected with the blood oxygen and heart rate module, the three-axis sensor and the communication module; the blood oxygen and heart rate module sends collected blood oxygen data and heart rate data to the control module; the three-axis sensor is used for sending collected motion data to the control module; the control module transmits the blood oxygen data, the heart rate data and the motion data through the communication module; the working frequency band of the communication module is 433 MHz; according to the utility model, reliable acquisition, storage and transmission of monitoring data can be ensured, and high-precision and stable health data monitoring can be provided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a circuit technical field especially relates to a data monitoring circuit and swimming cap. BACKGROUND

[0002] With the development of modern science and technology, intelligent wearable devices have been widely used in health monitoring and safety protection fields. Especially in sports monitoring and emergency rescue, real-time collection of user's physiological data and timely transmission of help-seeking information in emergency situations have important practical significance.

[0003] In the related art, there are many smart bracelets and sports watches with heart rate, blood oxygen monitoring and other functions, but there are still deficiencies in emergency rescue functions, waterproof performance and data transmission stability.

[0004] The implementation scheme in the related art usually uses Bluetooth or Wi-Fi modules for data transmission, but these wireless communication methods have poor transmission effect in underwater environment and cannot meet the data transmission requirements in underwater environment above 1.5 meters. In addition, the help-seeking function of existing devices in emergency situations often depends on complex operations, which may be difficult for users to complete quickly in emergency situations, thereby delaying the rescue opportunity.

[0005] In terms of health monitoring, the devices in the related art still have room for improvement in the accuracy, real-time performance of heart rate and blood oxygen data, and the comprehensiveness of motion data. For example, the sensor accuracy of some devices is insufficient, resulting in inaccurate monitoring data; the data processing algorithm is not optimized, affecting real-time performance; the sensitivity and response speed of the motion sensor are insufficient, and the user's motion state cannot be fully captured. SUMMARY

[0006] Therefore, the embodiments of the utility model aim to provide a data monitoring circuit and swimming cap to solve at least one technical problem existing in the prior art and provide at least one beneficial option or create conditions.

[0007] In one aspect, the embodiments of the utility model provide a data monitoring circuit, comprising a control module, an oxygen saturation and heart rate module, a three-axis sensor and a communication module, the control module is connected with the oxygen saturation and heart rate module, the three-axis sensor and the communication module respectively;

[0008] The oxygen saturation and heart rate module sends the collected oxygen saturation data and heart rate data to the control module;

[0009] The three-axis sensor is used for sending the collected motion data to the control module;

[0010] The control module transmits the oxygen saturation data, heart rate data and motion data through the communication module;

[0011] The working frequency band of the communication module is 433MHz.

[0012] Optionally, the control module comprises a key reset circuit, a forced reset chip and a main control chip connected in sequence, the main control chip is of an STM32 model, and the forced reset chip is of an STM6519 model.

[0013] Optionally, the key reset circuit comprises a reset key, a first resistor, a second resistor, a third resistor and a first triode, one end of the reset key is connected to the power module, the other end of the reset key is connected to one end of the first resistor and one end of the second resistor respectively, the other end of the first resistor is grounded, the other end of the second resistor is connected to the base of the first triode, the collector of the first triode is connected to one end of the third resistor and the reset output pin of the forced reset chip respectively, and the emitter of the first triode is grounded.

[0014] Optionally, the blood oxygen and heart rate module is of a MAX30102 model, and the three-axis sensor is of a LIS3DH model.

[0015] Optionally, the data monitoring circuit further comprises a charging circuit, the charging circuit comprises a power supply chip, a power module and a charging chip, the input end of the charging chip is connected to the magnetic suction port, and the output end of the charging chip is connected to the power module, the magnetic suction port is used for connecting an external power supply; the input end of the power supply chip is connected to the power module, and the output end of the power supply chip is connected to the main control chip; the power supply chip is used for converting the direct current voltage of the power module into a direct current voltage suitable for the main control chip after receiving the power supply instruction sent by the main control chip.

[0016] Optionally, the data monitoring circuit further comprises a first switch circuit, the first switch circuit comprises a fourth resistor, a fifth resistor, a sixth resistor, a second triode and a first MOS tube.

[0017] The source of the first MOS tube is connected to the power supply end of the charging chip, the drain of the first MOS tube is connected to the first power supply end, the gate of the first MOS tube is connected to the collector of the second triode, and the two ends of the fourth resistor are connected to the source and the gate of the first MOS tube respectively.

[0018] The base of the second triode is connected to one end of the fifth resistor, and the emitter of the second triode is grounded; the other end of the fifth resistor is connected to one end of the sixth resistor and the main control chip respectively.

[0019] The main control chip controls the power supply on-off of the charging chip according to the first voltage detected from the first switch circuit.

[0020] Optionally, the data monitoring circuit further comprises a second switch circuit, the second switch circuit comprises a seventh resistor, an eighth resistor, a ninth resistor, a third triode and a second MOS tube.

[0021] The source of the second MOS tube is connected with the power supply end of the power chip, the drain is connected with the second power supply end, the gate is connected with the collector of the third transistor, and the two ends of the seventh resistor are connected with the source and the gate of the second MOS tube respectively.

[0022] The base of the third transistor is connected with one end of the eighth resistor, and the emitter is grounded; and the other end of the eighth resistor is connected with one end of the ninth resistor and the master control chip respectively.

[0023] The master control chip controls the power supply on-off of the power chip according to the second voltage detected from the second switch circuit.

[0024] Optionally, the data monitoring circuit further comprises a storage module connected with the master control chip.

[0025] Optionally, the data monitoring circuit further comprises an indicator lamp connected with the master control chip.

[0026] In another aspect, the utility model embodiment provides a swimming cap, include: swimming cap body, and the data monitoring circuit that any above embodiment has described, data monitoring circuit sets up in the edge of swimming cap body.

[0027] The utility model embodiment has the following beneficial effects: the data monitoring circuit and the swimming cap provided by the utility model can monitor the blood oxygen saturation, heart rate and motion state of the user in real time and accurately through the blood oxygen heart rate module; the three-axis sensor ensures that the various motion states of the user can be captured comprehensively and accurately. The blood oxygen heart rate module is efficiently collected and processed by the master control chip, the communication module integrated with the 433MHz frequency band communication is used to realize stable communication in the underwater environment, and the reliable collection, storage and transmission of the monitoring data are ensured, and high-precision and stable health data monitoring is provided. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating creative labor.

[0029] Figure 1 The block diagram of the data monitoring circuit provided by an embodiment is shown in the figure;

[0030] Figure 2 The principle diagram of the key reset circuit provided by an embodiment is shown in the figure;

[0031] Figure 3A schematic diagram of a first switching circuit provided for an embodiment;

[0032] Figure 4 A schematic diagram of a second switching circuit provided for an embodiment. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the utility model clearer and more understandable, the utility model will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0034] It should be noted that although the functional charging modules are divided in the device schematic diagram, and the logical sequence is shown in the flowchart, in some cases, the steps shown or described can be performed in a charging module division different from that in the device, or in a sequence different from that in the flowchart. The terms "first", "second", etc. in the description and claims and the above drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence.

[0035] In the description of the utility model, it should be understood that the terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the utility model and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0036] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0037] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used herein are only for the purpose of describing the embodiments of the present application, and are not intended to limit the present application.

[0039] In addition, the described features, structures or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, many specific details are provided to give a full understanding of the embodiments of the present application.

[0040] The related art has the following disadvantages:

[0041] Data transmission limitation: existing smart devices mostly use Bluetooth or Wi-Fi for data transmission, which is limited by signal penetration ability, and it is difficult to stably transmit data in an environment more than 1.5 meters underwater, affecting the actual application effect of the device.

[0042] Emergency call function is complex: the emergency call function of some devices requires multi-step operation or complex gesture recognition, and users may not be able to quickly and accurately trigger the distress signal in an emergency, affecting the rescue efficiency.

[0043] Insufficient waterproof performance: although some devices claim to be waterproof, in actual use, water leakage may still occur in long-term or deep underwater environments, affecting the normal operation of the device and the user's experience.

[0044] Limited health monitoring accuracy:

[0045] Heart rate and blood oxygen monitoring: the existing device's heart rate and blood oxygen sensor has insufficient accuracy and is easily disturbed by motion, resulting in inaccurate monitoring data.

[0046] Motion monitoring comprehensiveness: the sensitivity and response speed of the motion sensor of some devices are insufficient, which cannot fully capture the user's motion state, affecting the real-time and accuracy of the data.

[0047] Poor energy management: existing devices have optimization space in power management, leading to insufficient device endurance, especially in application scenarios that require long-term monitoring and data transmission, battery life becomes a constraint factor.

[0048] To solve the technical problems in the related art, the utility model provides a high-precision, stable and easy-to-operate solution in the field of intelligent health monitoring and emergency rescue equipment, especially in heart rate, blood oxygen and motion monitoring, which has significant technical advantages and overcomes many shortcomings in the prior art.

[0049] The technical scheme provided by the utility model is as follows:

[0050] As Figure 1 Indicated, the utility model provides a kind of data monitoring circuit, comprising: control module, blood oxygen heart rate module 100, triaxial sensor 200 and communication module 300, the control module is connected blood oxygen heart rate module 100, triaxial sensor 200 and communication module 300 respectively;

[0051] The blood oxygen heart rate module 100 sends the collected blood oxygen data and heart rate data to the control module;

[0052] The triaxial sensor 200 is used to send the collected motion data to the control module;

[0053] The control module transmits blood oxygen data, heart rate data and motion data by the communication module 300;

[0054] The working frequency band of the communication module 300 is 433MHz.

[0055] The utility model integrates high-precision blood oxygen heart rate module 100 and triaxial sensor 200, improves the accuracy and real-time performance of blood oxygen saturation and heart rate data by optimizing circuit design, can monitor the blood oxygen saturation and heart rate of user in real time and accurately. By integrating triaxial sensor 200, high-sensitivity motion signal acquisition circuit is adopted, to ensure that various motion states of user can be captured comprehensively and accurately. Through main control chip U1, blood oxygen heart rate module 100 and triaxial sensor 200 are efficiently collected and processed, and communication module 300 of 433MHz frequency band communication is integrated, to realize wireless data transmission between device and server, support stable communication in environment above 1.5 meters underwater, ensure reliable transmission and storage of monitoring data.

[0056] In some embodiments, the control module includes a key reset circuit 400, a forced reset chip U2 and a main control chip U1 connected in sequence, the main control chip U1 is of STM32 model, and the forced reset chip U2 is of STM6519 model.

[0057] Specifically, the main control chip U1, model STM32L476RET6, is used to control the overall circuit and process data. The forced reset chip U2, model STM6519ALARUB6F, ensures the stability and reliability of the system during the distress call process and avoids the failure of the distress signal due to system abnormalities.

[0058] like Figure 2 As shown, in some embodiments, the button reset circuit 400 includes a reset button K1, a first resistor R1, a second resistor R2, a third resistor R3, and a first transistor Q1; one end of the reset button K1 is connected to the power module U4, and the other end is connected to one end of the first resistor R1 and one end of the second resistor R2 respectively. The other end of the first resistor R1 is grounded, and the other end of the second resistor R2 is connected to the base of the first transistor Q1. The collector of the first transistor Q1 is connected to one end of the third resistor R3 and the reset output pin of the forced reset chip U2 respectively, and the emitter of the first transistor Q1 is grounded.

[0059] In this embodiment, a multi-functional switch button is provided, which integrates power on / off and one-button emergency call functions, simplifies user operation steps, ensures that an emergency call signal can be triggered quickly and accurately in an emergency, and improves rescue efficiency.

[0060] In some embodiments, the blood oxygen and heart rate module 100 is model MAX30102, and the triaxial sensor 200 is model LIS3DH.

[0061] In this embodiment, a triaxial sensor 200 collects the user's motion signals in real time, providing accurate motion monitoring data. A MAX30102 blood oxygen and heart rate module 100 is used to monitor the user's blood oxygen saturation and heart rate in real time, providing health data support. The MAX30102 is an integrated pulse oximeter and heart rate monitor biosensor module from Maxim Integrated, widely used in wearable devices and medical monitoring instruments. It integrates red LEDs, infrared LEDs, photodetectors, optical components, and low-noise electronic components with ambient light suppression. Using photoplethysmography (PPG), the MAX30102 enables non-invasive detection of heart rate and blood oxygen saturation.

[0062] In some embodiments, the data monitoring circuit further includes a charging circuit 500, which includes a power chip U3, a power module U4, and a charging chip U5. The input terminal of the charging chip U5 is connected to a magnetic connector, and the output terminal is connected to the power module U4. The magnetic connector is used to connect to an external power source. The input terminal of the power chip U3 is connected to the power module U4, and the output terminal is connected to the main control chip U1. The power chip U3 is used to convert the DC voltage of the power module U4 into a DC voltage that is compatible with the main control chip U1 after receiving a power supply command from the main control chip U1.

[0063] In this embodiment, the power module U4 uses a 3.7V lithium battery, integrates a charging chip U5, and is equipped with a magnetic connector and electrostatic protection design to improve the device's waterproof performance and circuit stability, ensuring a safe and convenient charging process, as well as reliable operation of the device in various complex environments. The magnetic connector is an interface technology that uses magnetic force for connection and fixation. The magnetic force tightly attracts the connector and device together, enabling quick connection and disconnection. By employing the power chip U3 for power management, power supply is optimized, system energy consumption is reduced, and device battery life is extended.

[0064] By integrating the TPS62740 power chip U3, a low-power design is achieved, power supply is optimized, the device's battery life is extended, efficient power management is realized, and the needs of long-term monitoring and data transmission are met.

[0065] like Figure 3 As shown, in some embodiments, the data monitoring circuit further includes a first switching circuit 600, which includes a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a second transistor Q2, and a first MOSFET M1.

[0066] The source of the first MOS transistor M1 is connected to the power supply terminal of the charging chip U5, the drain is connected to the first power supply terminal, and the gate is connected to the collector of the second transistor Q2. The two ends of the fourth resistor R4 are respectively connected to the source and the gate of the first MOS transistor M1.

[0067] The base of the second transistor Q2 is connected to one end of the fifth resistor R5, and the emitter of the second transistor Q2 is grounded; the other end of the fifth resistor R5 is connected to one end of the sixth resistor R6 and the main control chip U1 respectively.

[0068] The main control chip U1 controls the power supply of the charging chip U5 based on the first voltage detected from the first switching circuit 600.

[0069] In some embodiments, the power enable pin of the power chip U3 is connected to the wake-up pin and the power pin of the main control chip U1, respectively; the main control chip U1 controls the power chip U3 to turn on and off through the power pin, and wakes up the power chip U3 from the low power mode through the wake-up pin.

[0070] like Figure 4 As shown, in some embodiments, the data monitoring circuit further includes a second switching circuit 700, which includes a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a third transistor Q3, and a second MOSFET M2.

[0071] The source of the second MOS transistor M2 is connected to the power supply terminal of the power chip U3, the drain is connected to the second power supply terminal, and the gate is connected to the collector of the third transistor Q3. The two ends of the seventh resistor R7 are respectively connected to the source and the gate of the second MOS transistor M2.

[0072] The base of the third transistor Q3 is connected to one end of the eighth resistor R8, and the emitter of the third transistor Q3 is grounded; the other end of the eighth resistor R8 is connected to one end of the ninth resistor R9 and the main control chip U1 respectively.

[0073] The main control chip U1 controls the power supply of the power chip U3 to switch on and off based on the second voltage detected from the second switching circuit 700.

[0074] The power enable pin of the power chip U3 is connected to the wake-up pin and the power pin of the main control chip U1, respectively. The main control chip U1 controls the power chip U3 to turn on and off through the power pin (PWR_ON pin). The main control chip U1 wakes up the power chip U3 from a low-power mode (such as standby mode) through the wake-up pin (GPIO pin).

[0075] In some embodiments, the data monitoring circuit further includes a storage module 800 connected to the main control chip U1.

[0076] Specifically, the storage module 800 includes an SDflash XTSD04GCLGEGA storage chip for storing collected blood oxygen data, heart rate data, and exercise data, ensuring reliable data preservation. Real-time data processing and backup prevent data loss or corruption, ensuring data integrity and availability.

[0077] In some embodiments, the data monitoring circuit further includes an indicator light 900 connected to the main control chip U1.

[0078] Through the indicator light 900 equipped with three-color LED, the working state of the device is displayed in real time, such as the charging state, the running state and the emergency help state. Through the design of a multifunctional switch key, the on-off of the device and the one-key help function are realized, and the user operation process is simplified.

[0079] The intelligent monitoring and emergency rescue device of the utility model realizes real-time health monitoring, motion data collection and rapid response in emergency through integration of multiple modules. The working principle is as follows:

[0080] 1. Power management and charging:

[0081] 3.7V lithium battery is used as the power supply, and the charging chip U5 with model MCP73833T-FCI / UN is used to realize safe and efficient charging process. The design of magnetic suction port facilitates the user to connect the charger, and the electrostatic protection technology is combined to prevent the circuit from being disturbed by static electricity during charging. The power management chip with model TPS62740 is responsible for the power distribution and regulation of the whole system, optimizes energy consumption, ensures stable power supply of each module under different working modes, and prolongs the endurance time of the device.

[0082] 2. Data collection and monitoring:

[0083] Physiological data collection:

[0084] The blood oxygen heart rate module 100 with model MAX30102 is adopted: the blood oxygen saturation and heart rate of the user are monitored in real time through optical sensing technology. The blood oxygen heart rate module 100 emits red light and infrared light, and the reflected light signal transmitted through the skin is received by the blood oxygen heart rate module 100 and converted into an electrical signal. The main control chip U1 with model STM32L476RET6 processes these signals and calculates the accurate blood oxygen data and heart rate data.

[0085] Motion data collection:

[0086] The motion data collection module adopts the three-axis sensor 200 with model LIS3DH, which is responsible for real-time collection of user's motion signals, including acceleration and direction change. The LIS3DH sensor measures the acceleration data in three-axis direction, combines the algorithm of the main control chip U1, analyzes the user's motion state, such as walking, running, swimming, etc., and provides comprehensive motion monitoring data.

[0087] 3. Data processing and storage:

[0088] The collected blood oxygen, heart rate and motion data are processed in real time by the main control chip U1. The processed data is stored locally by the SD flash XTSD04GCLGEGA storage chip to ensure reliable data storage. At the same time, the main control chip U1 formats and compresses the data as needed to facilitate subsequent transmission and analysis.

[0089] 4. Data transmission and communication:

[0090] The processed data is sent to the server by the communication module 300 at 433MHz frequency. Because the 433MHz frequency band has strong penetration ability, it ensures stable data transmission in an environment more than 1.5 meters underwater. This communication module 300 uses a finished product, ensuring the efficiency and stability of data transmission.

[0091] 5. Emergency call function:

[0092] The device is designed with a multifunctional switch button, integrating power on / off and one-key emergency call functions. Users can control the on / off state of the device through this button during normal use. In an emergency, users only need to press the button to trigger an emergency call signal. The trigger signal of the button is sent to the server through the STM6519 ALARUB6F forced reset chip U2, ensuring that the call signal can be sent stably to the server and quickly notify the relevant rescue personnel.

[0093] 6. Status indication and user feedback:

[0094] The device is equipped with a three-color LED indicator 900 to display the working status of the device in real time:

[0095] Charging status: Indicates the current charging status of the battery, ensuring that users understand the power status of the device.

[0096] Running status: Displays whether the device is in normal working mode, monitoring data collection in real time.

[0097] Emergency call status: When an emergency call is made, the indicator 900 will flash a specific color to feedback the sending status of the call signal, enhancing the user's sense of security.

[0098] 7. Waterproof and anti-interference design:

[0099] In order to ensure the normal operation of the device in an environment more than 1.5 meters underwater, magnetic attraction and electrostatic protection designs are used to effectively prevent water from entering the circuit. At the same time, by optimizing the circuit layout and shielding design, the influence of external electromagnetic interference on sensor data collection is reduced, ensuring the accuracy and stability of heart rate, blood oxygen and motion data.

[0100] 8. System reset and stability:

[0101] The integrated forced reset chip U2 can automatically reset when the system is abnormal, ensures continuous and stable operation of the device, and avoids data loss or function failure caused by system failure.

[0102] The utility model embodiment further provides a swimming cap, include: swimming cap body, and the data monitoring circuit that any preceding embodiment has described, data monitoring circuit set up in the edge of swimming cap body.

[0103] After the user wears the swimming cap, because the data monitoring device is set on the edge of the swimming cap body, the data monitoring device can be conveniently adjusted to the forehead part of the human body, so that the accuracy and stability of blood oxygen data and heart rate data acquisition are realized.

[0104] Compared with the related art, the data monitoring circuit and the swimming cap provided by the utility model integrate multiple functions of intelligent monitoring and emergency rescue, and have the following advantages:

[0105] Stable data transmission: the 433MHz wireless communication module 300 is adopted, stable data transmission can still be realized in the environment more than 1.5 meters underwater, and the needs of underwater monitoring and emergency rescue are met.

[0106] Simple emergency call operation: by designing a single switch key, the on-off of the device and the one-key emergency call function are realized, and it is ensured that the user can quickly trigger the help signal in an emergency.

[0107] Efficient waterproof design: the magnetic suction port and the electrostatic protection design are adopted, the waterproof performance of the device is improved, and stable operation of the device in various harsh environments is ensured.

[0108] High-precision health monitoring:

[0109] Heart rate and blood oxygen monitoring: the high-precision MAX30102 blood oxygen heart rate module 100 is integrated, the blood oxygen saturation and the heart rate of the user are monitored in real time, and accurate health data support is provided.

[0110] Motion monitoring: the LIS3DH three-axis sensor 200 is adopted, the motion signal of the user is collected in real time, and comprehensive and accurate motion monitoring data are provided.

[0111] Low-power long endurance: the efficient power management chip (TPS62740) is integrated, the energy consumption of the device is optimized, the endurance time of the device is prolonged, and the needs of long-time monitoring and data transmission are met.

[0112] The preferred embodiments of the present application are described above with reference to the accompanying drawings, and are not intended to limit the scope of the present application. Any modification, equivalent replacement and improvement made by those skilled in the art without departing from the scope and essence of the present application shall be within the scope of the present application.

Claims

1. A data monitoring circuit applied to a swim cap, characterized in that, The application relates to a data monitoring circuit, which comprises a control module, a blood oxygen and heart rate module, a three-axis sensor and a communication module, wherein the control module is connected with the blood oxygen and heart rate module, the three-axis sensor and the communication module respectively. The blood oxygen and heart rate module sends collected blood oxygen data and heart rate data to the control module. The three-axis sensor is used for sending collected motion data to the control module. The control module transmits the blood oxygen data, the heart rate data and the motion data through the communication module. The working frequency band of the communication module is 433 MHz.

2. The data monitoring circuit of claim 1, wherein, The control module comprises a key reset circuit, a forced reset chip and a main control chip which are connected in sequence, the model of the main control chip is STM32, and the model of the forced reset chip is STM6519.

3. The data monitoring circuit of claim 2, wherein, The key reset circuit comprises a reset key, a first resistor, a second resistor, a third resistor and a first triode, one end of the reset key is connected with a power module, the other end of the reset key is connected with one end of the first resistor and one end of the second resistor respectively, the other end of the first resistor is grounded, the other end of the second resistor is connected with the base of the first triode, the collector of the first triode is connected with one end of the third resistor and the reset output pin of the forced reset chip respectively, and the emitter of the first triode is grounded.

4. The data monitoring circuit of claim 2, wherein, The model of the blood oxygen and heart rate module is MAX30102, and the model of the three-axis sensor is LIS3DH.

5. The data monitoring circuit of claim 1, wherein, The data monitoring circuit further comprises a charging circuit, the charging circuit comprises a power supply chip, a power module and a charging chip, the input end of the charging chip is connected with a magnetic suction port, the output end of the charging chip is connected with the power module, the magnetic suction port is used for connecting an external power supply, the input end of the power supply chip is connected with the power module, and the output end of the power supply chip is connected with the main control chip; the power supply chip is used for converting the direct-current voltage of the power module into a direct-current voltage suitable for the main control chip after receiving the power supply instruction sent by the main control chip.

6. The data monitoring circuit of claim 2, wherein, The data monitoring circuit further comprises a first switch circuit, the first switch circuit comprises a fourth resistor, a fifth resistor, a sixth resistor, a second triode and a first MOS tube; the source of the first MOS tube is connected with the power supply end of the charging chip, the drain of the first MOS tube is connected with a first power supply end, the gate of the first MOS tube is connected with the collector of the second triode, and the two ends of the fourth resistor are connected with the source and the gate of the first MOS tube respectively; the base of the second triode is connected with one end of the fifth resistor, the emitter of the second triode is grounded, and the other end of the fifth resistor is connected with one end of the sixth resistor and the main control chip respectively; the main control chip controls the power supply on-off of the charging chip according to the first voltage detected from the first switch circuit.

7. The data monitoring circuit of claim 2, wherein, The data monitoring circuit further comprises a second switch circuit, the second switch circuit comprises a seventh resistor, an eighth resistor, a ninth resistor, a third triode and a second MOS tube; the source of the second MOS tube is connected with the power supply end of the power supply chip, the drain of the second MOS tube is connected with a second power supply end, the gate of the second MOS tube is connected with the collector of the third triode, and the two ends of the seventh resistor are connected with the source and the gate of the second MOS tube respectively; The base of the third triode is connected to one end of an eighth resistor, and the emitter of the third triode is grounded; the other end of the eighth resistor is connected to one end of a ninth resistor and a master control chip respectively; The master control chip controls the power supply on-off of the power supply chip according to the second voltage detected from the second switching circuit.

8. The data monitoring circuit of claim 2, wherein, The data monitoring circuit further comprises a storage module connected with the master control chip.

9. The data monitoring circuit of claim 2, wherein, The data monitoring circuit further comprises an indicator lamp connected with the master control chip.

10. A swim cap characterized by The data monitoring circuit comprises: A swimming cap body, and the data monitoring circuit according to any one of claims 1 to 9 is arranged at the edge of the swimming cap body.

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