Wearable flexible electrocardio patch with wifi communication function

Abstract

The utility model relates to a wearable flexible electrocardiogram patch with a wifi communication function, which comprises a main control module, an analog-to-digital converter, an electrocardiogram front-end circuit, a power supply module, a storage module and a six-axis acceleration sensor, and is characterized in that the electrocardiogram front-end circuit is electrically connected with the main control module and the analog-to-digital converter; the electrocardiosignal acquisition module is used for acquiring an analog electrocardiosignal of a wearer according to the control of the main control module and sending the analog electrocardiosignal to the analog-to-digital converter; the analog-to-digital converter is electrically connected with the main control module and is used for converting the analog electrocardiosignal into a digital electrocardiosignal and sending the digital electrocardiosignal to the main control module; the power supply module is electrically connected with the main control module and is used for providing a working power supply for the electrocardiogram patch; the storage module is electrically connected with the main control module and is used for storing data issued by the main control module; the six-axis acceleration sensor is electrically connected with the main control module and used for detecting motion data of the wearer and sending the motion data to the main control module according to control of the main control module.

Description

Technical Field

[0001] This application relates to the field of electrocardiogram (ECG) acquisition technology, and in particular to a wearable flexible ECG patch with Wi-Fi communication capabilities. Background Technology

[0002] With the rapid development of the Internet of Things (IoT) and wearable devices, electrocardiogram (ECG) monitoring equipment is gradually shifting from traditional medical devices to portable, wearable devices. Bluetooth technology, as a mature wireless communication technology, is widely used in consumer devices, especially in ECG monitoring equipment, where Bluetooth ECG patches have become a common solution.

[0003] However, Bluetooth technology also has significant problems and shortcomings. First, Bluetooth has poor anti-interference capabilities, making it susceptible to interference from other wireless devices in complex environments (such as hospitals and offices), leading to unstable data transmission, and even data loss or delays. This is a serious drawback for ECG monitoring applications that require real-time monitoring and high-quality data transmission. Second, Bluetooth has limited bandwidth, especially in ECG monitoring applications requiring high-frequency, large-data-volume transmission. Bluetooth's transmission capacity is insufficient to support high-quality data transmission, limiting its application in scenarios requiring high-precision, high-frequency ECG monitoring. Third, Bluetooth's security mechanisms are relatively weak, especially in public places, making it more vulnerable to hacker attacks. ECG data is sensitive personal health information, and any data leakage could lead to serious privacy issues. Existing Bluetooth ECG patches have significant data security vulnerabilities. Fourth, Bluetooth's effective transmission distance is short, typically only a few meters to tens of meters. This limits its application in remote monitoring, especially in scenarios requiring wider coverage, such as home care and telemedicine, where Bluetooth's coverage range is clearly insufficient.

[0004] In addition, the existing ECG patches have limited functionality, only supporting the monitoring of ECG data. If other data of the human body, such as behavioral data, needs to be monitored, an additional monitoring device is required. However, placing too many monitoring devices on the human body not only takes up space but also affects the user experience.

[0005] In summary, existing Bluetooth ECG patches have significant limitations in terms of data transmission stability, data security and privacy protection, and signal coverage, addressing the aforementioned issues. Therefore, a new technological solution is urgently needed to resolve these problems and meet the demands for high-quality, high-reliability ECG monitoring. Utility Model Content

[0006] This application provides a wearable flexible ECG patch with Wi-Fi communication function, which at least solves the problems of poor data transmission stability and limited functionality of existing Bluetooth ECG patches in related technologies.

[0007] In a first aspect, embodiments of this application provide a wearable flexible ECG patch with Wi-Fi communication functionality, including a main control module, an analog-to-digital converter, an ECG front-end circuit, a power module, a storage module, and a six-axis accelerometer, wherein...

[0008] The electrocardiogram front-end circuit is electrically connected to the main control module and the analog-to-digital converter, respectively, and is used to collect the wearer's simulated electrocardiogram signal according to the control of the main control module, and send the simulated electrocardiogram signal to the analog-to-digital converter;

[0009] The analog-to-digital converter is electrically connected to the main control module and is used to convert the analog electrocardiogram signal into a digital electrocardiogram signal and send it to the main control module.

[0010] The six-axis accelerometer is electrically connected to the main control module and is used to detect the wearer's motion data and send it to the main control module according to the control of the main control module.

[0011] The main control module includes Bluetooth and WiFi communication functions. The main control module is used to upload the digital electrocardiogram signal and the motion data to the cloud service platform via WiFi communication, and to send the digital electrocardiogram signal and the motion data to an external electronic device via Bluetooth or WiFi communication.

[0012] In one embodiment, the main control module includes a radio frequency front-end module and a wireless communication module; wherein,

[0013] The wireless communication module is electrically connected to the radio frequency front-end module. The wireless communication module supports Bluetooth and WiFi protocols and is used to adjust the working mode of the radio frequency front-end module to realize data interaction between the main control module and external electronic devices.

[0014] The radio frequency front-end module is used to transmit or receive radio frequency signals.

[0015] In one embodiment, the main control module further includes a clock module, an I / O interface, an I2C interface, a QSPI interface, and a GSPI interface; wherein,

[0016] The analog-to-digital converter and the power module are connected to the main control module via an I2C interface;

[0017] The electrocardiogram front-end circuit is connected to the main control module through the IO interface;

[0018] The storage device is connected to the main control module via the QSPI interface;

[0019] The six-axis accelerometer is connected to the main control module via the GSPI interface.

[0020] In one embodiment, the wearable flexible ECG patch further includes a power module, a storage module, and a temperature sensor; wherein,

[0021] The power module is electrically connected to the main control module and is used to provide working power to the ECG patch.

[0022] The storage module is electrically connected to the main control module and is used to store the data sent by the main control module;

[0023] The temperature sensor is electrically connected to the main control module and is used to collect the wearer's body temperature data and send it to the main control module according to the control of the main control module.

[0024] In one embodiment, the wearable flexible ECG patch further includes a button and an LED light; wherein,

[0025] The button is electrically connected to the main control module and is used for user interaction;

[0026] The LED light is electrically connected to the main control module, and the LED light is used to indicate the status of the wearable flexible ECG patch.

[0027] In one embodiment, the radio frequency front-end module includes a resonant circuit, a radio frequency transceiver control circuit, and an antenna module connected in series; wherein,

[0028] The resonant circuit is connected between the main control module and the radio frequency transceiver control circuit, and is used to filter the control signals sent by the main control module.

[0029] The radio frequency transceiver control circuit is used to adjust the communication mode according to the control signal, and the communication mode includes radio frequency receiving mode, radio frequency transmitting mode and Bluetooth mode.

[0030] The antenna module is used to transmit or receive radio frequency signals.

[0031] In one embodiment, the resonant circuit includes a first resonant circuit, a second resonant circuit, and a third resonant circuit; the main control module includes an RF transmission control terminal, an RF reception control terminal, and a Bluetooth control terminal; wherein,

[0032] The first resonant circuit is connected between the RF transmission control terminal and the RF transceiver control circuit, and is used to filter the RF transmission control signal sent by the main control module.

[0033] The second resonant circuit is connected between the RF receiving control terminal and the RF transceiver control circuit, and is used to filter the RF receiving control signal sent by the main control module.

[0034] The third resonant circuit is connected between the Bluetooth control terminal and the radio frequency transceiver control circuit, and is used to filter the Bluetooth control signal sent by the main control module.

[0035] In one embodiment, the first resonant circuit includes a first capacitor, a second capacitor, a third capacitor, a first inductor, and a second inductor; wherein, the first capacitor is connected between the RF transmission control terminal and the ground terminal; the first inductor and the second capacitor are connected in series between the RF transmission control terminal and the RF transceiver control circuit; the first terminal of the third capacitor is connected to the common connection point of the first inductor and the second capacitor, and the second terminal of the third capacitor is grounded through the second inductor;

[0036] The second resonant circuit includes a fourth capacitor, a fifth capacitor, a sixth capacitor, and a third inductor; wherein, the fourth capacitor is connected between the RF receiving control terminal and the ground terminal; the third inductor and the fifth capacitor are connected in series between the RF receiving control terminal and the RF transceiver control circuit; the first terminal of the sixth capacitor is connected to the common connection point of the third inductor and the fifth capacitor, and the second terminal of the sixth capacitor is grounded;

[0037] The third resonant circuit includes a seventh capacitor; wherein the seventh capacitor is connected in series between the Bluetooth control terminal and the radio frequency transceiver control circuit.

[0038] In one embodiment, the radio frequency transceiver control circuit includes a radio frequency transceiver chip and a bandpass filter; the radio frequency transceiver chip includes RF1, RF2, RF3, RFC, VC1, VC2 and VC3 pins;

[0039] Specifically, the RF3 pin is connected to the first resonant circuit; the RF2 pin is connected to the second resonant circuit; the RF1 pin is connected to the third resonant circuit; the VC1, VC2, and VC3 pins are connected to the radio frequency control button; the RFC pin is connected to the input terminal of the bandpass filter; and the output terminal of the bandpass filter is connected to the antenna module.

[0040] In one embodiment, the wearable flexible ECG patch further includes a flexible shell, and the main control module, analog-to-digital converter, ECG front-end circuit, power module, storage module and six-axis accelerometer are fixed in the flexible shell.

[0041] The wearable flexible ECG patch with Wi-Fi communication function provided in this application embodiment has at least the following technical effects:

[0042] By applying a main control module with Bluetooth and WiFi communication capabilities, the main control module is used to upload the digital ECG signal and the motion data to the cloud service platform via WiFi communication, and to send the digital ECG signal and the motion data to external electronic devices via Bluetooth or WiFi communication. This enables the WiFi ECG patch to perform better in terms of data transmission speed, coverage, multi-device connectivity, data security and stability, making it suitable for application scenarios that require large-scale data transmission, wide coverage and high security.

[0043] In addition, by adding a six-axis accelerometer to the ECG patch, the wearer's motion data can be detected and sent to the main control module while monitoring ECG data, thereby increasing the functionality of the ECG patch.

[0044] Details of one or more embodiments of this application are set forth in the following drawings and description to make other features, objects and advantages of this application more readily apparent. Attached Figure Description

[0045] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0046] Figure 1 This is a structural block diagram of a wearable flexible ECG patch with Wi-Fi communication function in one embodiment of this application;

[0047] Figure 2 This is a circuit schematic diagram of the radio frequency front-end module and the wireless communication module in one embodiment of this application. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of this application clearer, the application is described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. All other embodiments obtained by those skilled in the art based on the embodiments provided in this application without inventive effort are within the scope of protection of this application.

[0049] Obviously, the accompanying drawings described below are merely some examples or embodiments of this application. Those skilled in the art can apply this application to other similar scenarios based on these drawings without any inventive effort. Furthermore, it is understood that although the efforts made in this development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this application, any changes to design, manufacturing, or production based on the technical content disclosed in this application are merely conventional technical means and should not be construed as insufficient disclosure of the content of this application.

[0050] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0051] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms “a,” “an,” “an,” “the,” and similar words used in this application do not indicate quantity limitation and may indicate singular or plural. The terms “comprising,” “including,” “having,” and any variations thereof used in this application are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that includes a series of steps or modules (units) is not limited to the listed steps or units, but may also include steps or units not listed, or may include other steps or units inherent to these processes, methods, products, or devices. The terms “connected,” “linked,” “coupled,” and similar words used in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. “Multiple” used in this application refers to two or more. “And / or” describes the relationship between related objects, indicating that three relationships may exist; for example, “A and / or B” can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following objects are in an "or" relationship. The terms "first," "second," and "third" used in this application are merely to distinguish similar objects and do not represent a specific ordering of the objects.

[0052] One embodiment of this application provides a wearable flexible ECG patch with Wi-Fi communication capability. Figure 1 This is a structural block diagram of the wearable flexible ECG patch.

[0053] In one embodiment of this application, the wearable flexible ECG patch includes a main control module, an analog-to-digital converter, an ECG front-end circuit, a power module, a storage module, and a six-axis accelerometer.

[0054] The electrocardiogram (ECG) front-end circuit is electrically connected to both the main control module and the analog-to-digital converter (ADC), and is used to acquire the wearer's simulated ECG signal under the control of the main control module, and send the simulated ECG signal to the ADC. The ADC is electrically connected to the main control module and is used to convert the simulated ECG signal into a digital ECG signal and send it to the main control module. The power supply module is electrically connected to the main control module and is used to provide operating power to the ECG patch. The storage module is electrically connected to the main control module and is used to store the data sent by the main control module. The six-axis accelerometer is electrically connected to the main control module and is used to detect the wearer's motion data under the control of the main control module and send it to the main control module.

[0055] The main control module in this embodiment includes Bluetooth and WiFi communication functions. The main control module is used to upload the digital electrocardiogram signal and the motion data to the cloud service platform via WiFi communication, and to send the digital electrocardiogram signal and the motion data to an external electronic device via Bluetooth or WiFi communication.

[0056] In a preferred embodiment, the main control module includes a radio frequency front-end module and a wireless communication module. The wireless communication module is electrically connected to the radio frequency front-end module. The wireless communication module supports Bluetooth and WiFi protocols and is used to adjust the working mode of the radio frequency front-end module to realize data interaction between the main control module and external electronic devices. The radio frequency front-end module is used to transmit or receive radio frequency signals.

[0057] In this embodiment, reference Figure 1 The main control module also includes a clock module and a peripheral interface module. The clock module provides time information; the peripheral interface module enables the microprocessor to connect with other modules, including an analog-to-digital converter, an electrocardiogram (ECG) front-end circuit, a power supply module, a storage module, and a six-axis accelerometer.

[0058] More specifically, the peripheral interface module includes an IO interface, an I2C interface, a QSPI interface, and a GSPI interface; wherein, the analog-to-digital converter and the power supply module are connected to the main control module via the I2C interface; the electrocardiogram front-end circuit is connected to the main control module via the IO interface; the storage device is connected to the main control module via the QSPI interface; and the six-axis accelerometer is connected to the main control module via the GSPI interface.

[0059] In a preferred embodiment, reference Figure 1The wearable flexible ECG patch also includes a temperature sensor; the temperature sensor is electrically connected to the main control module and is used to collect the wearer's body temperature data and send it to the main control module according to the control of the main control module.

[0060] Continue to refer to Figure 1 The wearable flexible ECG patch also includes a button and an LED light; wherein, the button is electrically connected to the main control module and is used to interact with the user; the LED light is electrically connected to the main control module and is used to indicate the status of the wearable flexible ECG patch.

[0061] In a preferred embodiment, the radio frequency front-end circuit includes a resonant circuit, a radio frequency transceiver control circuit, and an antenna module connected in series. The resonant circuit is connected between the main control module and the radio frequency transceiver control circuit, and is used to filter the control signals emitted by the main control module. The radio frequency transceiver control circuit is used to adjust the communication mode according to the control signals, and the communication modes include radio frequency receiving mode, radio frequency transmitting mode, and Bluetooth mode. The antenna module is used to transmit or receive radio frequency signals.

[0062] Specifically, the resonant circuit includes a first resonant circuit, a second resonant circuit, and a third resonant circuit; the main control module includes an RF transmit control terminal, an RF receive control terminal, and a Bluetooth control terminal. The first resonant circuit is connected between the RF transmit control terminal and the RF transceiver control circuit, and is used to filter the RF transmit control signal sent by the main control module; the second resonant circuit is connected between the RF receive control terminal and the RF transceiver control circuit, and is used to filter the RF receive control signal sent by the main control module; the third resonant circuit is connected between the Bluetooth control terminal and the RF transceiver control circuit, and is used to filter the Bluetooth control signal sent by the main control module.

[0063] refer to Figure 2 The first resonant circuit includes a first capacitor C1, a second capacitor C2, a third capacitor C3, a first inductor L1, and a second inductor L2. The first capacitor C1 is connected between the RF transmit control terminal and the ground terminal; the first inductor L1 and the second capacitor C2 are connected in series between the RF transmit control terminal and the RF transceiver control circuit; the first terminal of the third capacitor C3 is connected to the common connection point of the first inductor L1 and the second capacitor C2, and the second terminal of the third capacitor C3 is grounded through the second inductor L2.

[0064] The second resonant circuit includes a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, and a third inductor L3. The fourth capacitor C4 is connected between the RF receiving control terminal and the ground terminal; the third inductor L3 and the fifth capacitor C5 are connected in series between the RF receiving control terminal and the RF transceiver control circuit; the first terminal of the sixth capacitor C6 is connected to the common connection point of the third inductor L3 and the fifth capacitor C5, and the second terminal of the sixth capacitor C6 is grounded.

[0065] The third resonant circuit includes a seventh capacitor C7, wherein the seventh capacitor C7 is connected in series between the Bluetooth control terminal and the radio frequency transceiver control circuit.

[0066] refer to Figure 2 U1 is a wireless communication module, and the radio frequency transceiver control circuit includes a radio frequency transceiver chip U2 and a bandpass filter FL1. The radio frequency transceiver chip U2 includes RF1, RF2, RF3, RFC, VC1, VC2, and VC3 pins;

[0067] Specifically, the RF3 pin is connected to the first resonant circuit; the RF2 pin is connected to the second resonant circuit; the RF1 pin is connected to the third resonant circuit; the VC1, VC2, and VC3 pins are connected to the radio frequency control button (i.e., the radio frequency switch); the RFC pin is connected to the input terminal of the bandpass filter FL1; and the output terminal of the bandpass filter FL1 is connected to the antenna module.

[0068] In this embodiment, the RF transceiver chip U2 is connected to the bandpass filter FL1 via the eighth capacitor C8, and the bandpass filter FL1 is connected to the antenna module via the ninth capacitor C9. The antenna module includes an antenna pad I1 and an antenna ANT1, wherein the antenna pad I1 is connected to the antenna ANT1 via the tenth capacitor C10. This application uses the antenna module to receive and transmit wireless RF signals.

[0069] It should be noted that the technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments have been described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A wearable flexible ECG patch with Wi-Fi communication function, characterized in that, It includes a main control module, an analog-to-digital converter, an electrocardiogram front-end circuit block, and a six-axis accelerometer, among which, The electrocardiogram front-end circuit is electrically connected to the main control module and the analog-to-digital converter, respectively, and is used to collect the wearer's simulated electrocardiogram signal according to the control of the main control module, and send the simulated electrocardiogram signal to the analog-to-digital converter; The analog-to-digital converter is electrically connected to the main control module and is used to convert the analog electrocardiogram signal into a digital electrocardiogram signal and send it to the main control module. The six-axis accelerometer is electrically connected to the main control module and is used to detect the wearer's motion data and send it to the main control module according to the control of the main control module. The main control module includes Bluetooth and WiFi communication functions. The main control module is used to upload the digital electrocardiogram signal and the motion data to the cloud service platform via WiFi communication, and to send the digital electrocardiogram signal and the motion data to an external electronic device via Bluetooth or WiFi communication.

2. The wearable flexible ECG patch according to claim 1, characterized in that, The main control module includes a radio frequency front-end module and a wireless communication module; wherein... The wireless communication module is electrically connected to the radio frequency front-end module. The wireless communication module supports Bluetooth and WiFi protocols and is used to adjust the working mode of the radio frequency front-end module to realize data interaction between the main control module and external electronic devices. The radio frequency front-end module is used to transmit or receive radio frequency signals.

3. The wearable flexible ECG patch according to claim 1, characterized in that, The main control module also includes a clock module, I / O interfaces, an I2C interface, a QSPI interface, and a GSPI interface; among which, The analog-to-digital converter and the power module are connected to the main control module via an I2C interface; The electrocardiogram front-end circuit is connected to the main control module through the IO interface; The storage device is connected to the main control module via the QSPI interface; The six-axis accelerometer is connected to the main control module via the GSPI interface.

4. The wearable flexible ECG patch according to claim 1, characterized in that, The wearable flexible ECG patch also includes a power module, a storage module, and a temperature sensor; wherein... The power module is electrically connected to the main control module and is used to provide working power to the ECG patch. The storage module is electrically connected to the main control module and is used to store the data sent by the main control module; The temperature sensor is electrically connected to the main control module and is used to collect the wearer's body temperature data and send it to the main control module according to the control of the main control module.

5. The wearable flexible ECG patch according to claim 1, characterized in that, The wearable flexible ECG patch also includes a button and an LED light; wherein... The button is electrically connected to the main control module and is used for user interaction; The LED light is electrically connected to the main control module, and the LED light is used to indicate the status of the wearable flexible ECG patch.

6. The wearable flexible ECG patch according to claim 2, characterized in that, The radio frequency front-end module includes a resonant circuit, a radio frequency transceiver control circuit, and an antenna module connected in series; wherein... The resonant circuit is connected between the main control module and the radio frequency transceiver control circuit, and is used to filter the control signals sent by the main control module. The radio frequency transceiver control circuit is used to adjust the communication mode according to the control signal, and the communication mode includes radio frequency receiving mode, radio frequency transmitting mode and Bluetooth mode. The antenna module is used to transmit or receive radio frequency signals.

7. The wearable flexible ECG patch according to claim 6, characterized in that, The resonant circuit includes a first resonant circuit, a second resonant circuit, and a third resonant circuit; the main control module includes an RF transmission control terminal, an RF reception control terminal, and a Bluetooth control terminal; wherein... The first resonant circuit is connected between the RF transmission control terminal and the RF transceiver control circuit, and is used to filter the RF transmission control signal sent by the main control module. The second resonant circuit is connected between the RF receiving control terminal and the RF transceiver control circuit, and is used to filter the RF receiving control signal sent by the main control module. The third resonant circuit is connected between the Bluetooth control terminal and the radio frequency transceiver control circuit, and is used to filter the Bluetooth control signal sent by the main control module.

8. The wearable flexible ECG patch according to claim 7, characterized in that, The first resonant circuit includes a first capacitor, a second capacitor, a third capacitor, a first inductor, and a second inductor; wherein, the first capacitor is connected between the RF transmission control terminal and the ground terminal; the first inductor and the second capacitor are connected in series between the RF transmission control terminal and the RF transceiver control circuit; the first terminal of the third capacitor is connected to the common connection point of the first inductor and the second capacitor, and the second terminal of the third capacitor is grounded through the second inductor; The second resonant circuit includes a fourth capacitor, a fifth capacitor, a sixth capacitor, and a third inductor; wherein, the fourth capacitor is connected between the RF receiving control terminal and the ground terminal; the third inductor and the fifth capacitor are connected in series between the RF receiving control terminal and the RF transceiver control circuit; the first terminal of the sixth capacitor is connected to the common connection point of the third inductor and the fifth capacitor, and the second terminal of the sixth capacitor is grounded; The third resonant circuit includes a seventh capacitor; wherein the seventh capacitor is connected in series between the Bluetooth control terminal and the radio frequency transceiver control circuit.

9. The wearable flexible ECG patch according to claim 6, characterized in that, The radio frequency transceiver control circuit includes a radio frequency transceiver chip and a bandpass filter; the radio frequency transceiver chip includes RF1, RF2, RF3, RFC, VC1, VC2 and VC3 pins; Specifically, the RF3 pin is connected to the first resonant circuit; the RF2 pin is connected to the second resonant circuit; the RF1 pin is connected to the third resonant circuit; the VC1, VC2, and VC3 pins are connected to the radio frequency control button; the RFC pin is connected to the input terminal of the bandpass filter; and the output terminal of the bandpass filter is connected to the antenna module.

10. The wearable flexible ECG patch according to claim 1, characterized in that, The wearable flexible ECG patch also includes a flexible shell, in which the main control module, analog-to-digital converter, ECG front-end circuit, power module, storage module and six-axis accelerometer are fixed.

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