CN219480130U - Wearable equipment control circuit and wearable equipment - Google Patents
Wearable equipment control circuit and wearable equipment Download PDFInfo
- Publication number
- CN219480130U CN219480130U CN202320326448.7U CN202320326448U CN219480130U CN 219480130 U CN219480130 U CN 219480130U CN 202320326448 U CN202320326448 U CN 202320326448U CN 219480130 U CN219480130 U CN 219480130U
- Authority
- CN
- China
- Prior art keywords
- module
- wearable device
- mcu
- control circuit
- electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
The utility model provides a wearable device control circuit and wearable device, and belongs to the technical field of human body data detection. The wearable equipment control circuit comprises an MCU module, a power supply module electrically connected with the MCU module, an EMG module, a heart rate blood pressure module, a PPG module, a body temperature module, an acceleration module and a storage module, wherein the EMG module, the heart rate blood pressure module, the PPG module, the body temperature module, the acceleration module and the storage module are electrically connected with the MCU module; the power supply module is used for supplying power to the EMG module, the heart rate blood pressure module, the PPG module, the body temperature module, the acceleration module and the storage module under the control of the MCU module; the EMG module includes a first electrode, a second electrode, a third electrode, and an external device interface. The utility model can be used by scientific researchers to dynamically measure the physiological and psychological states of experimenters, thereby facilitating the development of physiological, psychological and medical related researches.
Description
Technical Field
The utility model belongs to the technical field of human body data detection, and particularly relates to a wearable device control circuit and a wearable device.
Background
With the development of microelectronic circuit technology, wearable devices have widely come into the field of view of the public, and in the civilian market, sports bracelets and sports wristwatches have gained favor and acceptance by a large number of users. Because the wearable equipment is high in portability and can be in direct contact with a human body, human body data can be conveniently acquired, but for the scientific research fields such as physiology, psychology and medical treatment, detailed and accurate human body data are required to be acquired during the scientific research, the data acquired by the civil wearable equipment are less, the precision can not meet the scientific research requirements, and therefore the wearable equipment capable of comprehensively and accurately acquiring human body state data is required.
As patent document CN206675514U proposes a human body biological feature monitoring circuit, the circuit includes: the optical transmitter is respectively connected with the first biological characteristic signal processing circuit and the second biological characteristic signal processing circuit through the signal switching module; the main control unit is connected with the control end of the signal switching module and used for controlling the light emitter to be communicated with the first biological characteristic signal processing circuit or communicated with the second biological characteristic signal processing circuit; the main control unit is also respectively connected with the first biological characteristic signal processing circuit and the second biological characteristic signal processing circuit. The monitoring circuit utilizes the optical module to realize detection of the body temperature and the heart rate of the human body, but has few detection items and is not suitable for the requirements of the scientific research field.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a wearable device control circuit and a wearable device, which are used for detecting the human body state and facilitating researchers to collect comprehensive human body data of experimenters.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the wearable equipment control circuit comprises an MCU module, a power supply module electrically connected with the MCU module, an EMG module, a heart rate blood pressure module, a PPG module, a body temperature module, an acceleration module and a storage module, wherein the EMG module, the heart rate blood pressure module, the PPG module, the body temperature module, the acceleration module and the storage module are electrically connected with the MCU module;
the power supply module is used for supplying power to the EMG module, the heart rate blood pressure module, the PPG module, the body temperature module, the acceleration module and the storage module under the control of the MCU module;
the EMG module comprises a first electrode, a second electrode, a third electrode and an external equipment interface, wherein output signals of the first electrode and the second electrode are amplified by a first differential amplifier and output in a single-ended mode, and then are amplified by a first variable amplifying circuit and output to the MCU module; the output signal of the external equipment interface is amplified by a second differential amplifier and outputted in a single end, and then amplified by a second variable amplifying circuit and outputted to the MCU module; the MCU module is also used for adjusting the amplification gain of the variable amplification circuit.
Further, the EMG module also includes a reference voltage circuit for providing a reference voltage for the third electrode.
Further, the signals of the first variable amplifying circuit and the second variable amplifying circuit are output to different GPIO interfaces of the MCU module.
Further, the MCU module is communicated with the storage module through an SPI bus, the MCU module is communicated with the heart rate blood pressure module through a serial port, and the MCU module is communicated with the PPG module, the body temperature module and the acceleration module IIC bus.
Further, the storage module is a memory card.
Further, the external equipment interface is used for connecting external electrocardio equipment.
Further, the external device interface is a 3.5mm interface.
Further, the power module comprises a lithium battery and a power management chip.
A wearable device, comprising the wearable device control circuit.
Further, the wearable device is a wristwatch.
Compared with the prior art, the utility model has the following beneficial effects:
the signals collected by the EMG module are amplified in two stages, so that the amplification effect of 100-1000 times can be realized, and the MCU module can adjust the amplification factor of the signals according to the needs, so that the EMG data collected by the utility model is more accurate; meanwhile, the EMG module is also provided with an external equipment interface, and can be connected with and acquire acquisition signals of external professional electrocardiograph equipment.
The power supply module can supply power to the components such as the sensors under the control of the MCU module, so that the MCU module can control the power supply of the components such as the sensors to be turned on or off according to the needs, the power consumption can be reduced, the power consumption is improved, the power consumption is increased at times, and the charging frequency is reduced.
The utility model can make up the defects that the prior art adopts a wireless or cloud storage mode to easily cause data loss or information leakage and the like, and can store human body data more safely by a local storage mode, thereby being convenient for experimenters to carry out secondary processing and processing on the data subsequently. The utility model also adopts the memory card to carry out local storage, and can utilize other devices to read data under the condition of circuit damage.
The utility model is used for providing the wearable equipment suitable for various daily life scenes, scientific researchers can dynamically measure the physiological and psychological states of experimenters by using the wearable equipment, and the measured data are comprehensive and accurate, so that the wearable equipment is convenient for developing physiological, psychological and medical related researches.
Drawings
The present utility model will be described in further detail with reference to the accompanying drawings.
Fig. 1: a frame diagram of embodiment 1 of the present utility model;
fig. 2: the embodiment 1 of the utility model is a frame diagram of a power module;
fig. 3: the embodiment 1 of the utility model is a frame diagram of an EMG module;
fig. 4: a schematic structural diagram of embodiment 2 of the present utility model;
wherein: the device comprises a 1-MCU module, a 2-power module, a 3-EMG module, a 4-heart rate blood pressure module, a 5-PPG module, a 6-body temperature module, a 7-acceleration module, an 8-storage module, a 10-watch body and an 11-wrist strap.
Detailed Description
For a better understanding of the present utility model, the content of the present utility model will be further clarified below with reference to the examples and the accompanying drawings, but the scope of the present utility model is not limited to the following examples only. In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present utility model. It will be apparent, however, to one skilled in the art that the utility model may be practiced without one or more of these details.
Example 1:
referring to fig. 1-3, an object of the present embodiment is to provide a wearable device control circuit.
As shown in fig. 1, the control circuit includes: the system comprises a power supply module 2 for supplying power, an MCU module 1 for controlling and processing data, a storage module 8 for storing data, and an EMG module 3, a heart rate blood pressure module 4, a PPG module 5, a body temperature module 6 and an acceleration module 7 for collecting data.
The MCU module 1 is a 32-bit microcontroller, the specific model is STM32L432KBU6, the core Cortex-M4 is the highest main frequency is 80MHz.
The power module 2 includes a lithium battery, and the power module 2 is used for converting the lithium battery or external power supply into voltages required by other components and also is used for realizing charge and discharge management of the lithium battery. Specifically, as shown in fig. 2, the specific model TP4056 of the power management chip U13 in the power module 2 is used for charging the lithium battery with an external 5V input voltage or outputting an external voltage. The linear voltage regulator LDO chip U14 in the power supply module 2 is connected with the power supply management chip U13, and the specific model is LR7533-T, and is used for converting the output voltage of the power supply management chip U13 into 3.3V (DDVD_STDBY) to supply power for the MCU module 1. The linear voltage regulator LDO chip U15 in the power supply module 2 is connected with the power supply management chip U13, the specific model is LR6207-T33, and the linear voltage regulator LDO chip U is used for converting the output voltage of the power supply management chip U13 into 3.3V (DDVD) and supplying power for the EMG module 3, the heart rate blood pressure module 4, the PPG module 5, the body temperature module 6, the acceleration module 7 and the storage module 8; and the linear voltage regulator LDO chip U15 is provided with an EN enabling control end, and can realize the ON-off of POWER supply under the control of a POWER_ON signal of the MCU module 1, so that the MCU module 1 can control the ON-off of POWER supplies of various sensors, the storage module 8 and other components. The MOS switch Q3 in the POWER module 2 is connected with the POWER management chip U13 and outputs a voltage (vbat_controlled), specifically, PMOS, which can realize ON-off of POWER supply under the control of the power_on signal of the MCU module 1, and is used for providing POWER supply for components or circuits with larger POWER consumption, such as light of the PPG module 5.
The EMG module 3 is electrically connected with the GPIO interface of the MCU module 1 and is used for collecting human body electromyographic signals. Specifically, as shown in fig. 3, the EMG module 3 includes two paths of EMG signals, i.e., EMG1 and EMG2, respectively. Wherein the EMG1 part comprises three electrodes for contacting with human skin, wherein the first electrode and the second electrode are both signal acquisition electrodes, and the third electrode is a driving electrode common to the EMG1 and the EMG 2; the first electrode and the second electrode are electrically connected with a first differential amplifier, and the first differential amplifier amplifies and converts two paths of input acquisition signals into single-ended signals, outputs the single-ended signals to a first variable amplifying circuit, and transmits the single-ended signals to a GPIO interface of the MCU module 1 after further amplification by the first variable amplifying circuit. The EMG2 part comprises a 3.5mm interface, and the 3.5mm interface is connected with external electrocardiograph equipment by an electrocardiograph detection line; the 3.5mm interface amplifies and converts the two paths of acquisition signals into single-ended signals, outputs the single-ended signals to the second variable amplifying circuit, and transmits the single-ended signals to other GPIO interfaces of the MCU module 1 after further amplification by the second variable amplifying circuit. The first differential amplifier and the second differential amplifier are high input impedance differential amplifiers, and the amplification factor is 10; the amplification effect of the first variable amplification circuit and the second variable amplification circuit is adjustable, the amplification factor is 10-100, and the amplification gains of the first variable amplification circuit and the second variable amplification circuit are controlled by the MCU module 1. Therefore, the first differential amplifier and the first variable amplifying circuit cooperate, and the second differential amplifier and the second variable amplifying circuit cooperate to realize 100-1000 times of amplification. The EMG module 3 further comprises a reference voltage circuit for outputting a reference voltage required by the third electrode.
The heart rate blood pressure module 4 is electrically connected with the MCU module 1 and communicates through a serial port, and is used for collecting human heart rate voltage signals. The heart rate blood pressure module 4 comprises a sensor chip SON1113, an automatic gain control chip SON780, a signal front-end chip SON3030 and a heart rate blood pressure algorithm chip BP1709.
The PPG module 5 is electrically connected with the MCU module 1 and communicates with the IIC bus, and is used for collecting pulse wave signals of a human body. The PPG module 5 includes a sensor chip SFH7050 and an analog front end chip AFE4404.
The body temperature module 6 is electrically connected with the MCU module 1 and communicates by using the IIC bus, and is used for collecting human body questioning data. The specific model number of the body temperature module 6 is MAX30205.
The acceleration module 7 is electrically connected with the MCU module 1 and communicates by using an IIC bus, and is used for collecting human motion data. The acceleration module 7 is specifically an ADXL345 triaxial digital acceleration sensor chip.
The memory module 8 is electrically connected with the MCU module 1 and communicates by using an SPI bus for storing data. The memory module 8 may be a flash memory chip, or may be an external memory such as a memory card. The memory module 8 of this embodiment is preferably a memory card, which is capable of rescuing data in the event of circuit failure.
Example 2:
referring to fig. 4, an object of the present embodiment is to provide a wearable device. The wearable device is a wristwatch, and comprises a watch body 10 and a wrist strap 11, and a control circuit as described in embodiment 1 is arranged in the watch body 10.
Finally, it is noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present utility model, and that other modifications and equivalents thereof by those skilled in the art should be included in the scope of the claims of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.
Claims (10)
1. The utility model provides a wearable equipment control circuit, includes MCU module and with MCU module electric connection's power module, its characterized in that: the system also comprises an EMG module, a heart rate blood pressure module, a PPG module, a body temperature module, an acceleration module and a storage module which are all electrically connected with the MCU module;
the power supply module is used for supplying power to the EMG module, the heart rate blood pressure module, the PPG module, the body temperature module, the acceleration module and the storage module under the control of the MCU module;
the EMG module comprises a first electrode, a second electrode, a third electrode and an external equipment interface, wherein output signals of the first electrode and the second electrode are amplified by a first differential amplifier and output in a single-ended mode, and then are amplified by a first variable amplifying circuit and output to the MCU module; the output signal of the external equipment interface is amplified by a second differential amplifier and outputted in a single end, and then amplified by a second variable amplifying circuit and outputted to the MCU module; the MCU module is also used for adjusting the amplification gain of the variable amplification circuit.
2. The wearable device control circuit of claim 1, wherein: the EMG module also includes a reference voltage circuit for providing a reference voltage for the third electrode.
3. The wearable device control circuit of claim 1, wherein: and signals of the first variable amplifying circuit and the second variable amplifying circuit are output to different GPIO interfaces of the MCU module.
4. The wearable device control circuit of claim 1, wherein: the MCU module is communicated with the storage module through an SPI bus, the MCU module is communicated with the heart rate blood pressure module through a serial port, and the MCU module is communicated with the PPG module, the body temperature module and the acceleration module IIC bus.
5. The wearable device control circuit of claim 1, wherein: the storage module is a storage card.
6. The wearable device control circuit of claim 1, wherein: the external equipment interface is used for connecting external electrocardio equipment.
7. The wearable device control circuit of claim 1, wherein: the external equipment interface is a 3.5mm interface.
8. The wearable device control circuit of claim 1, wherein: the power module comprises a lithium battery and a power management chip.
9. A wearable device, characterized by: comprising the wearable device control circuit of any of claims 1-8.
10. The wearable device of claim 9, wherein: the wearable device is a wristwatch type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320326448.7U CN219480130U (en) | 2023-02-27 | 2023-02-27 | Wearable equipment control circuit and wearable equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320326448.7U CN219480130U (en) | 2023-02-27 | 2023-02-27 | Wearable equipment control circuit and wearable equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219480130U true CN219480130U (en) | 2023-08-08 |
Family
ID=87481714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320326448.7U Active CN219480130U (en) | 2023-02-27 | 2023-02-27 | Wearable equipment control circuit and wearable equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219480130U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117357078A (en) * | 2023-09-11 | 2024-01-09 | 苏州福流医疗科技有限公司 | PPG sensor processing circuit and non-sensing blood pressure measuring device |
-
2023
- 2023-02-27 CN CN202320326448.7U patent/CN219480130U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117357078A (en) * | 2023-09-11 | 2024-01-09 | 苏州福流医疗科技有限公司 | PPG sensor processing circuit and non-sensing blood pressure measuring device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111417341A (en) | Electrocardiogram measuring device | |
| CN219480130U (en) | Wearable equipment control circuit and wearable equipment | |
| CN202699116U (en) | Human body physiological parameter detection device for mobile phone protection sleeve | |
| CN102415878A (en) | Life physical sign monitoring device | |
| WO2020192132A1 (en) | Sleep monitoring device and system | |
| CN203290900U (en) | Wireless surface myoelectricity collecting instrument based on Bluetooth | |
| CN101879062B (en) | Surface electromyograph, surface electromyography module and measuring method | |
| CN108714024A (en) | A kind of portable multi-function patient monitor | |
| CN102485171A (en) | Non-invasive attached telemetering electrocardiographic recording method and system having ultra-long record period and ultra-high storage capacity | |
| CN216135909U (en) | Intelligent stethoscope control circuit, intelligent stethoscope and electronic device | |
| CN204744156U (en) | Guardianship device based on wireless biomedical sensing | |
| US20090118597A1 (en) | Neural Signal Processing | |
| CN109846498B (en) | Wearable device for mental state monitoring and method for acquiring monitoring data | |
| CN211270704U (en) | Portable developments electrocardio blood pressure respiratory wave record appearance | |
| CN203483410U (en) | Portable synchronous dynamic electrocardiograph and blood pressure recorder | |
| CN113907764A (en) | Hardware system of wearable 12-lead electrocardiograph | |
| CN209826722U (en) | Surface electromyogram signal acquisition device | |
| CN105686825A (en) | Double-stage wearable household electrocardiocorder and method thereof | |
| Shyamala et al. | Single-lead wearable patch for wireless continuous monitoring of ECG | |
| Li et al. | A Wearable EEG Real-time Measure and Analysis Platform for Home Applications | |
| CN219126388U (en) | Diabetes heart autonomic neuropathy analysis system | |
| Liu et al. | A fully integrated wireless SoC for in-body pH and temperature continuous monitoring | |
| CN219480073U (en) | Handheld health data acquisition device | |
| CN219895717U (en) | Portable heart function testing device | |
| CN219306713U (en) | Blood oxygen saturation signal control amplifying circuit and noninvasive blood oxygen saturation tester |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |