CN209915984U - Wearable equipment and measurement system of detectable biological impedance and electrocardio - Google Patents

Wearable equipment and measurement system of detectable biological impedance and electrocardio Download PDF

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Publication number
CN209915984U
CN209915984U CN201822049432.8U CN201822049432U CN209915984U CN 209915984 U CN209915984 U CN 209915984U CN 201822049432 U CN201822049432 U CN 201822049432U CN 209915984 U CN209915984 U CN 209915984U
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module
resistor
capacitor
electrocardio
shell
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蔡露
钟远琅
曾昭能
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Shenzhen Youchuang Billion Technology Co Ltd
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Shenzhen Youchuang Billion Technology Co Ltd
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Abstract

The utility model discloses a wearable equipment and measurement system of detectable bio-impedance and electrocardio, wearable equipment includes: the biological impedance and electrocardio information detection device comprises a shell, a watchband and four electrode plates for detecting biological impedance and electrocardio information, wherein the watchband is connected with the shell, two electrode plates of the four electrode plates are arranged on the front surface of the shell, and the other two electrode plates are arranged on the back surface of the shell. The utility model discloses can realize bioimpedance and electrocardiosignal's measurement function simultaneously, adopt the four-electrode method to measure bioimpedance, again on these four electrodes sharing wherein three electrode accomplish the electrocardio and measure, optimize equipment structure reduces the equipment volume, and reduce cost guarantees measurement accuracy simultaneously.

Description

Wearable equipment and measurement system of detectable biological impedance and electrocardio
Technical Field
The utility model relates to an intelligence wearing equipment technical field especially relates to a wearable equipment and measurement system of detectable bio-impedance and electrocardio.
Background
The world health organization defines obesity as one of ten chronic diseases. At present, the overweight people of Chinese people reach 2 hundred million, the obese people exceed 9000 ten thousand, and at least 260 thousand people die each year. Obesity, hypertension, hyperlipidemia and hyperglycemia are called as death quartet, and can become the first killer in the 21 st century. Diseases such as diabetes, hypertension, cardiovascular diseases and the like caused by overweight and obesity are increasing year by year and are in a trend of being young. The incidence of diabetes is obviously improved for patients with long-term continuous obesity.
The prevention and treatment work of cardiovascular diseases in China has achieved initial results, but still faces serious challenges. In general, the prevalence and mortality of cardiovascular diseases in China are still in the rising stage. The number of patients suffering from cardiovascular diseases is 2.9 million, wherein 1300 million stroke, 1100 million coronary heart disease, 500 million pulmonary heart disease, 450 million heart failure, 250 million rheumatic heart disease, 200 million congenital heart disease and 2.7 million hypertension are calculated.
Cardiovascular death accounts for more than 40% of the deaths of resident diseases, and is the first place higher than tumors and other diseases. The mortality rate of cardiovascular diseases in rural areas has been continuously higher than at urban level in recent years. At present, cardiovascular disease death accounts for the first cause of total death of urban and rural residents, 45.01% in rural areas and 42.61% in cities. The number of patients with cardiovascular disease will still increase rapidly in the next 10 years. The burden of cardiovascular diseases is gradually increased, and particularly cardiovascular disease deaths of rural residents are greatly increased.
In view of the above-mentioned severity of obesity and cardiovascular disease, early detection and prevention becomes important.
At present, the mainstream method for obtaining human body components is to detect the bio-impedance of a human body and then calculate the bio-impedance through a correlation calculation formula. The human body components mainly comprise information such as fat, muscle, water, protein and the like. Among them, the fat rate is an important index for judging obesity of a human body. The electrocardiogram drawn by the electrocardiosignal has irreplaceable effect in the detection process of cardiovascular diseases, is simple, quick and low in price, and has higher clinical application value.
Currently, few and few intelligent wearable products adopting a four-electrode method to measure the bio-impedance or the human body composition in the market mostly adopt an eight-electrode method to measure the bio-impedance or the human body composition, such as an invigoration body fat scale or a human body composition analyzer in korea, the eight-electrode method is adopted, and the intelligent wearable products do not belong to wearable products, are high in cost and are not easy to carry; millet and Hua are weighed as body fat, a four-electrode method is adopted, the product does not belong to the wearable field, the volume is large, and the product is not easy to carry.
The electrocardio products applied to the wearable field in the market are more and have large difference. The 24-hour dynamic electrocardiogram equipment used in hospitals is inconvenient to carry, and multiple electrodes are connected with the body, so that discomfort such as body pruritus is easily caused; the apple watch can detect electrocardiosignals, but is expensive; other electrocardio bracelet product standards differ, and the accuracy can not be guaranteed.
Another noteworthy feature is that no wearable product is currently available on the market, which is intended to be able to detect body fat and ecg signals on one device. To above problem, the utility model provides a wearable equipment of detectable bioimpedance and electrocardio, both detectable human body composition, but also detectable electrocardiosignal, and then detect human obesity degree and prediction cardiovascular disease, with low costs, the precision is high, portable has higher using value.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of prior art, provide a wearable equipment and measurement system of detectable biological impedance and electrocardio.
The technical scheme of the utility model as follows: the utility model provides a wearable equipment of detectable bio-impedance and electrocardio, include: the biological impedance and electrocardio information detection device comprises a shell, a watchband and four electrode plates for detecting biological impedance and electrocardio information, wherein the watchband is connected with the shell, two electrode plates of the four electrode plates are arranged on the front surface of the shell, and the other two electrode plates are arranged on the back surface of the shell;
the shell is internally provided with a processor module, a signal generation module, a biological impedance measurement module, an electrocardio measurement module, a charging module, a display module and a communication module, wherein the processor module is respectively connected with the signal generation module, the biological impedance measurement module, the electrocardio measurement module, the charging module, the display module and the communication module, and the signal generation module is also connected with the biological impedance measurement module;
the four electrode plates are needed when the biological impedance measuring module detects biological impedance, the biological impedance measuring module is respectively connected with the four electrode plates, three electrode plates are needed when the electrocardio signal is measured by the electrocardio measuring module, and the three electrode plates comprise: two electrode pads on the back side of the housing and one electrode pad on the front side.
An analog-to-digital converter is arranged between the biological impedance measuring module and the processor module, and an analog-to-digital converter is arranged between the electrocardio measuring module and the processor module.
The processor module comprises a signal generation module;
the bio-impedance measurement module includes: the input cathode of the voltage follower is connected with the first output end of the voltage follower, the input anode of the voltage follower is connected with the signal generation module, the instrument amplification module is provided with a first input end, a second input end and a second output end, the second output end is connected with the processor module, the first input end of the instrument amplification module is connected with the common end of the first gating switch, the second input end of the instrument amplification module is connected with the common end of the second gating switch, one end of the first gating switch is connected with the first output end of the voltage follower after the first resistor, the second resistor, the third resistor, the fourth resistor, the first gating switch, the first capacitor, the second capacitor, the first gating switch, the second gating switch and the instrument amplification module are connected in series, the first input end of the first gating switch, the second input end of the instrument amplification module, the second output end of the second gating switch and the common end of the first gating switch are connected, the second gating end of the first gating switch is connected between the second resistor and the third resistor, the first gating end of the second gating switch is connected between the first resistor and the second resistor, the second gating end of the second gating switch is connected between the third resistor and the fourth resistor, one end of the first capacitor is connected between the first resistor and the second resistor, the other end of the first capacitor is connected to one electrode plate on the front face of the shell, one end of the second capacitor is connected between the second resistor and the third resistor, the other end of the second capacitor is connected to the other electrode plate on the front face of the shell, one end of the third capacitor is connected between the third resistor and the fourth resistor, the other end of the third capacitor is connected to one electrode plate on the back face of the shell, one end of the fourth capacitor is connected to the ground wire, and the other end of the fourth capacitor.
The electrocardio measuring module comprises: the circuit comprises a pre-amplification circuit connected with the three electrode plates, a high-pass filter circuit connected with the pre-amplification circuit, a 50Hz trap circuit connected with the high-pass filter circuit, a main amplification circuit connected with the 50Hz trap circuit and a low-pass filter circuit connected with the main amplification circuit.
The pre-amplification circuit is respectively connected with the other electrode plate on the front surface of the shell and the two electrode plates on the back surface of the shell.
The wearable device further comprises a fifth capacitor and a single-point touch key, one end of the fifth capacitor is connected with the other electrode plate on the front face of the shell, and the other end of the fifth capacitor is connected with the single-point touch key.
The processor module controls the signal generation module to output a sine wave excitation signal of 50kHz to the biological impedance measurement module.
The wearable device is an intelligent wearable device worn on the wrist.
The utility model also provides a measurement system of detectable bio-impedance and electrocardio, include: the wearable device, the intelligent terminal connected with the communication module and the cloud server connected with the intelligent terminal are provided.
Adopt above-mentioned scheme, the utility model provides a wearable equipment and measurement system of detectable bioimpedance and electrocardio can realize bioimpedance and electrocardiosignal's measurement function simultaneously, adopts four-electrode method to measure bioimpedance, again on these four electrodes sharing wherein three electrode accomplish the electrocardio and measure, optimize equipment structure, reduce equipment volume, reduce cost guarantees measurement accuracy simultaneously.
Drawings
Fig. 1 is a schematic diagram of the measuring system for detecting bio-impedance and electrocardiogram of the present invention.
Fig. 2 is a schematic diagram of the connection between the middle bioimpedance measuring module and the electrocardiography measuring module.
Fig. 3 is a front structural view of the wearable device capable of detecting bio-impedance and electrocardiography of the present invention.
Fig. 4 is a back structure diagram of the wearable device capable of detecting bio-impedance and electrocardiography of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 4, the present invention provides a wearable device capable of detecting bio-impedance and electrocardiogram, including: the multifunctional biological impedance and electrocardio information detection watch comprises a shell, a watchband and four electrode plates P1, P2, P3 and P4 for detecting biological impedance and electrocardio information, wherein the watchband is connected with the shell, two electrode plates P1 and P2 of the four electrode plates P1, P2, P3 and P4 are arranged on the front face of the shell, and the other two electrode plates P3 and P4 are arranged on the back face of the shell.
Be equipped with processor module U1, signal generation module, biological impedance measurement module U2, electrocardio measurement module U3, the module of charging, display module and communication module in the casing, processor module respectively with signal generation module, biological impedance measurement module, electrocardio measurement module, the module of charging, display module and communication module are connected, signal generation module still with biological impedance measurement module connects, the module of charging is used for providing working power supply for whole equipment, communication module preferably adopts wireless communication mode communication, like the bluetooth mode. The four electrode slices P1, P2, P3 and P4 are needed to be used when the bioimpedance measurement module U2 detects bioimpedance, the bioimpedance measurement module U2 is respectively connected with the four electrode slices P1, P2, P3 and P4, three electrode slices P2, P3 and P4 are needed to be used when the electrocardiosignal is measured by the electrocardiosignal measurement module U3, and the three electrode slices P2, P3 and P4 include: two electrode pads P3, P4 on the back side of the housing and one electrode pad P2 on the front side.
An analog-to-digital converter is arranged between the biological impedance measuring module U2 and the processor module U1, and an analog-to-digital converter is arranged between the electrocardio measuring module U3 and the processor module U1. The processor module comprises a signal generation module. The bio-impedance measurement module U2 includes: the voltage follower A1, the first to fourth resistors Rref, Rb1, Rb2, Rb3, the first to fourth capacitors C1, C2, C3, C4, the first gating switch S1, the second gating switch S2 and the instrument amplification module U4 are arranged, the negative input electrode of the voltage follower A1 is connected with the first output end of the voltage follower A1, the positive input electrode of the voltage follower A1 is connected with the signal generation module, the processor module controls the signal generation module to generate a 50kHz sine wave excitation signal to provide the excitation signal to the biological impedance measurement module U2, and the voltage follower A1 is used for improving the loading capacity of the sine wave excitation source. The meter amplifying module U4 has a first input end, a second input end and a second output end, the second output end is connected with the processor module U1, the first input end of the meter amplifying module U4 is connected with the common end S13 of the first gating switch S1, the second input end of the meter amplifying module U4 is connected with the common end S23 of the second gating switch S2, after the first to fourth resistors Rref, Rb1, Rb2 and Rb3 are connected in series, one end is connected with the first output end of the voltage follower a1, the other end is connected to ground, the first gating end S11 of the first gating switch S1 is connected with the first output end of the voltage follower a1, the second gating end S12 of the first gating switch S1 is connected between the second resistor R1 and the third resistor R2, the first gating end S21 of the second switch S2 is connected between the first gating resistor Rref 8234 and the second resistor R1, a second gating end S22 of the second gating switch S2 is connected between the third resistor R2 and the fourth resistor R3, one end of the first capacitor C1 is connected between the first resistor Rref and the second resistor R1, the other end of the first capacitor C1 is connected to one electrode plate P1 on the front surface of the housing, one end of the second capacitor C2 is connected between the second resistor R1 and the third resistor R2, the other end of the second capacitor C1 is connected to the other electrode plate P2 on the front surface of the housing, one end of the third capacitor C3 is connected between the third resistor R2 and the fourth resistor R3, the other end of the third capacitor C3 is connected to one electrode plate P3 on the back surface of the housing, one end of the fourth capacitor C4 is connected to the ground, and the other end. The instrument amplification module U4 has two functions: 1. the input resistance is improved, the output resistance is reduced, and the extraction capability of weak signals is improved; 2. a differential amplifier is used for extracting the voltage drop of the first resistor Rref and the biological impedance Rx.
When the biological impedance is measured, the two electrode plates P3 and P4 on the back of the shell are contacted with the wrist of one hand, and then two fingers of the other hand are respectively contacted with the two electrode plates P1 and P2 on the front of the shell, so that the electrode plates P1 and P2-human body-electrode plates P3 and P4 form a loop.
In the bio-impedance measurement module U2, the first to fourth capacitors C1, C2, C3, and C4 perform ac coupling (dc/ac blocking). The first resistor Rref is a reference resistor with a known resistance, and the second resistor Rb1, the third resistor Rb2 and the fourth resistor Rb3 are known bias resistors, mainly for providing a fixed bias voltage for the input terminal of the instrumentation amplifier U4, and whether the test is performed at this time can be identified through the change of the bias voltage. In fig. 2, a resistor Rx1 is a resistor between two fingers in contact with the electrode pads P1 and P2, a resistor Rx2 is a skin resistor between the electrode pads P3 and P4 in contact with the wrist, and a resistor Rx is an overall resistance of the human body, that is, a desired biological impedance. The first gating switch S1 and the second gating switch S2 are single-pole double-throw switches, and the processor module U1 controls the first gating switch S1 and the second gating switch S2 to switch the measurement channels to measure the corresponding voltages. U4 is an instrumentation amplifier, mainly used to improve the weak signal extraction capability, and to obtain the voltage drop of the first resistor Rref and the resistor Rx, the voltage follower A1 is used to improve the load carrying capability of the excitation signal source.
In order to measure the biological impedance, namely the resistance Rx, firstly, the processor module U1 is used for switching on the common end S13 of the first gating switch S1 and the first gating end S11, and switching on the common end S23 of the second gating switch S2 and the first gating end S21, at this time, the voltage Uref at the two ends of the first resistance Rref can be measured, the Uref is amplified by an instrumentation amplifier and then is converted into a digital signal by an analog-to-digital converter ADC1, and the current I1 of the circuit of the biological impedance measuring module can be obtained because the first resistance Rref is a known resistance.
Then, the processor module is used for switching on the common end S13 and the second gating end S12 of the first gating switch S1, and switching on the common end S23 and the second gating end S22 of the second gating switch S2, at this time, the voltage Ux at two ends of the total resistor Rs after the third resistor Rb2 and the biological impedance Rx are connected in parallel is measured, and the current I2 flowing through the total resistor Rs after the third resistor Rb2 and the biological impedance Rx are connected in parallel can be obtained in the same way.
Wherein, the calculation relation of the total resistance Rs is as follows: rs ═ r (Rx × Rb2)/(Rx + Rb 2).
Further, based on the principle that the currents in the series circuits are equal, i.e., I1 equals I2, the equation Uref/Rref equals Ux/Rs is obtained, and Rx can be obtained by substituting the Rs relation into the equation, i.e., the calculated relation of the biological impedance Rx is:
the body fat component of the human body can be calculated by the correlation equation by combining (Ux × Rref × Rb2)/(Uref × Rb2-Ux Rref) and the personal parameters such as height, age, weight, sex and the like inputted by human.
The processor module U1 sends the related calculation result to the external intelligent terminal through the communication module.
The electrocardio measuring module U3 comprises: a pre-amplifier circuit U31 connected to the three electrode pads P2, P3, and P4, a high-pass filter circuit U32 connected to the pre-amplifier circuit U31, a 50Hz notch circuit U33 connected to the high-pass filter circuit U32, a main amplifier circuit U34 connected to the 50Hz notch circuit U33, and a low-pass filter circuit U35 connected to the main amplifier circuit U34. The pre-amplifier circuit U31 is connected to the other electrode pad P2 on the front side of the housing and the two electrode pads P3 and P4 on the back side of the housing.
Pre-amplification circuit U31: the quality of the pre-amplification circuit U31 directly affects the signal quality, and because the extracted electrocardiosignal is an unstable weak signal with high internal resistance, the input impedance of the amplifier must be increased in order to reduce the influence of the internal resistance of the signal source. In general, the internal resistance of the signal source is 100k Ω, and the input impedance of the amplifier should be greater than 1M Ω. In addition, the range of the amplitude of the electrocardiosignal is 0.5-5 mV, the frequency response is 0.05-100 Hz, and the electrocardiosignal belongs to a weak signal, so that the required amplifier has higher gain. The pre-amplification circuit U31 has a magnification of about 10 times.
High-pass filter circuit U32: because the electrocardiosignal is weak, multistage amplification is needed, but the baseline drift is easily caused by the direct current amplifier with direct coupling of multistage. An RC coupling circuit is adopted between the two stages of amplifiers, and the effect of high-pass filtering is achieved while the direct-current signals are isolated.
50Hz trap U33: because the electrocardiosignal has a low frequency and is particularly susceptible to power frequency interference at 50Hz, it is necessary to suppress the electrocardiosignal by a band-stop filter (i.e., a 50Hz trap circuit U33). The 50Hz notch circuit U33 is a second order voltage controlled voltage source band reject filter (butterworth response).
Main amplifier circuit U34: the amplitude of the electrocardiosignal is very small, generally only about 1mv, the voltage input range of a chip for analog-to-digital conversion of the system is 0-5V, and the amplification factor of the front preamplification circuit U31 is about 10 times, so that the whole measurement module needs a main amplification circuit U34 with 100 amplification to amplify the signal.
Low-pass filter circuit U35: the electrocardiosignal has serious interference of high-frequency harmonic wave higher than 100Hz in the acquisition process, so the electrocardiosignal needs to be processed by a low-pass filter circuit. The utility model discloses a low pass filter circuit be second order voltage-controlled power type low pass filter.
Three electrode plates P2, P3 and P4 are needed for measuring the electrocardio information and share the three electrodes with the biological impedance measuring module U2, when the electrocardio information is measured, the electrode plates P3 and P4 on the back of the shell are in contact with the wrist of one hand, and one finger of the other hand is in contact with the electrode plate P2 on the front of the shell, so that the electrode plates P2-human body-electrode plates P3 and P4 form a loop. The electrocardiosignals transmitted by the three electrode plates P2, P3 and P4 are processed by the five circuits to obtain stable and obvious electrocardio analog signals, and then the electrocardio analog signals are converted by the analog-to-digital converter ADC2, transmitted to the processor module U1 for corresponding processing and then transmitted to an external intelligent terminal through the communication module.
In addition, the wearable device can further comprise a fifth capacitor C5 and a single-touch key, one end of the fifth capacitor C5 is connected with another electrode sheet P2 on the front face of the housing, the other end of the fifth capacitor C5 is connected with the single-touch key, and the fifth capacitor C5 plays a role in alternating current coupling.
In this embodiment, the wearable device is a smart wearable device worn on the wrist.
Referring to fig. 1, the present invention further provides a measuring system capable of detecting bio-impedance and electrocardiography, comprising: the wearable device, the intelligent terminal connected with the communication module and the cloud server connected with the intelligent terminal are provided.
The bioimpedance measurement module U2 and the electrocardio measurement module U3 detect bioimpedance Rx and electrocardio signals through the method, the bioimpedance Rx and the electrocardio signals are transmitted to the processor module U1 to be correspondingly processed, then the bioimpedance measurement module U2 and the electrocardio measurement module U3 transmit the bioimpedance signals to a mobile phone APP through the communication module, detailed electrocardio information is displayed, an electrocardiogram is drawn at the same time, and part of necessary data are transmitted to a cloud end through the APP to be subjected.
To sum up, the utility model provides a wearable equipment and measurement system of detectable bioimpedance and electrocardio can realize bioimpedance and electrocardiosignal's measurement function simultaneously, adopts the four-electrode method to measure bioimpedance, again on these four electrodes sharing wherein three electrode accomplish the electrocardio and measure, optimize equipment structure, reduce equipment volume, reduce cost guarantees measurement accuracy simultaneously.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (9)

1. A wearable device capable of detecting bioimpedance and electrocardiography, comprising: the biological impedance and electrocardio information detection device comprises a shell, a watchband and four electrode plates for detecting biological impedance and electrocardio information, wherein the watchband is connected with the shell, two electrode plates of the four electrode plates are arranged on the front surface of the shell, and the other two electrode plates are arranged on the back surface of the shell;
the shell is internally provided with a processor module, a signal generation module, a biological impedance measurement module, an electrocardio measurement module, a charging module, a display module and a communication module, wherein the processor module is respectively connected with the signal generation module, the biological impedance measurement module, the electrocardio measurement module, the charging module, the display module and the communication module, and the signal generation module is also connected with the biological impedance measurement module;
the four electrode plates are needed when the biological impedance measuring module detects biological impedance, the biological impedance measuring module is respectively connected with the four electrode plates, three electrode plates are needed when the electrocardio signal is measured by the electrocardio measuring module, and the three electrode plates comprise: two electrode pads on the back side of the housing and one electrode pad on the front side.
2. The wearable device capable of detecting bio-impedance and electrocardiogram according to claim 1, wherein an analog-to-digital converter is disposed between the bio-impedance measuring module and the processor module, and an analog-to-digital converter is disposed between the electrocardiogram measuring module and the processor module.
3. The wearable device capable of detecting bioimpedance and electrocardiography according to claim 1, wherein the processor module includes a signal generation module;
the bio-impedance measurement module includes: the input cathode of the voltage follower is connected with the first output end of the voltage follower, the input anode of the voltage follower is connected with the signal generation module, the instrument amplification module is provided with a first input end, a second input end and a second output end, the second output end is connected with the processor module, the first input end of the instrument amplification module is connected with the common end of the first gating switch, the second input end of the instrument amplification module is connected with the common end of the second gating switch, one end of the first gating switch is connected with the first output end of the voltage follower after the first resistor, the second resistor, the third resistor, the fourth resistor, the first gating switch, the first capacitor, the second capacitor, the first gating switch, the second gating switch and the instrument amplification module are connected in series, the first input end of the first gating switch, the second input end of the instrument amplification module, the second output end of the second gating switch and the common end of the first gating switch are connected, the second gating end of the first gating switch is connected between the second resistor and the third resistor, the first gating end of the second gating switch is connected between the first resistor and the second resistor, the second gating end of the second gating switch is connected between the third resistor and the fourth resistor, one end of the first capacitor is connected between the first resistor and the second resistor, the other end of the first capacitor is connected to one electrode plate on the front face of the shell, one end of the second capacitor is connected between the second resistor and the third resistor, the other end of the second capacitor is connected to the other electrode plate on the front face of the shell, one end of the third capacitor is connected between the third resistor and the fourth resistor, the other end of the third capacitor is connected to one electrode plate on the back face of the shell, one end of the fourth capacitor is connected to the ground wire, and the other end of the fourth capacitor.
4. The wearable device capable of detecting bioimpedance and electrocardiography according to claim 1, wherein the electrocardiography measurement module comprises: the circuit comprises a pre-amplification circuit connected with the three electrode plates, a high-pass filter circuit connected with the pre-amplification circuit, a 50Hz trap circuit connected with the high-pass filter circuit, a main amplification circuit connected with the 50Hz trap circuit and a low-pass filter circuit connected with the main amplification circuit.
5. The wearable device capable of detecting bioimpedance and electrocardiography according to claim 4, wherein the pre-amplification circuit is connected with another electrode plate on the front face of the housing and two electrode plates on the back face of the housing.
6. The wearable device capable of detecting bioimpedance and electrocardiography according to claim 3, further comprising a fifth capacitor and a single-point touch key, wherein one end of the fifth capacitor is connected with another electrode sheet on the front face of the shell, and the other end of the fifth capacitor is connected with the single-point touch key.
7. The wearable device capable of detecting bioimpedance and electrocardiography according to claim 3, wherein the processor module controls the signal generation module to output a 50kHz sine wave excitation signal to the bioimpedance measurement module.
8. The wearable device capable of detecting bioimpedance and electrocardiography according to any one of claims 1-7, wherein the wearable device is a smart wearable device worn on a wrist.
9. A measurement system capable of detecting bioimpedance and electrocardiography, comprising: the wearable device of any of claims 1-7, a smart terminal connected to the communication module, and a cloud server connected to the smart terminal.
CN201822049432.8U 2018-12-06 2018-12-06 Wearable equipment and measurement system of detectable biological impedance and electrocardio Active CN209915984U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109381180A (en) * 2018-12-06 2019-02-26 深圳市优创亿科技有限公司 Detectable bio-impedance and cardiac electrical wearable device, measuring system and method
CN111528796A (en) * 2020-04-07 2020-08-14 芯海科技(深圳)股份有限公司 Physiological information measuring method, physiological information measuring device, and electronic apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109381180A (en) * 2018-12-06 2019-02-26 深圳市优创亿科技有限公司 Detectable bio-impedance and cardiac electrical wearable device, measuring system and method
CN111528796A (en) * 2020-04-07 2020-08-14 芯海科技(深圳)股份有限公司 Physiological information measuring method, physiological information measuring device, and electronic apparatus

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