CN212118154U - BCG signal monitoring early warning device based on wifi technology - Google Patents

BCG signal monitoring early warning device based on wifi technology Download PDF

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CN212118154U
CN212118154U CN201922405201.0U CN201922405201U CN212118154U CN 212118154 U CN212118154 U CN 212118154U CN 201922405201 U CN201922405201 U CN 201922405201U CN 212118154 U CN212118154 U CN 212118154U
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circuit
bcg
wifi
mcu
power supply
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宋维
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Shandong College of Electronic Technology
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Shandong College of Electronic Technology
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Abstract

The utility model belongs to the technical field of the wisdom medical treatment, a BCG signal monitoring precaution device based on wifi technique is disclosed, including power supply circuit (1), BCG circuit (2), MCU circuit (3), wifi circuit (4). The utility model provides a novel BCG signal real-time supervision early warning ware based on wifi transmission technology, it uses the BCG method to carry out real-time supervision to human cardiovascular system, can not obtain the heart activity condition under the condition of detection state is experienced to the testee, uses for a long time can not cause psychological burden to the testee. BCG contains a large amount of useful heart physiological information and can effectively assist doctors in diagnosing and analyzing various cardiovascular diseases. The BCG signal can be transmitted to the remote server in a wireless mode by adopting a wifi communication method, and the BCG data can be transmitted to any host computer on the Internet because the wifi can be directly accessed to the Internet. After the BCG signal is transmitted to the remote server, the BCG signal can be further analyzed and processed, so that the heart hidden danger can be found in time, and early warning can be given.

Description

BCG signal monitoring early warning device based on wifi technology
Technical Field
The utility model relates to an wisdom medical treatment technical field specifically is a BCG signal monitoring precaution device based on wifi technique.
Background
The wireless communication mode wifi is a short-distance wireless communication technology, allows an electronic device to be connected to a wireless local area network through the technology, and realizes data exchange with other computers or mobile devices or direct connection to the Internet.
The ballistocardiogram is used for recording the change of the heart pump blood through the change of the physical stress of the close contact with the human body, and BCG signals reflect the working condition of a cardiovascular system in real time and can be conveniently obtained without attaching a sensor to the human body.
The signal real-time monitoring early warning device is used for monitoring the cardiovascular system of a human body in real time through a BCG detection method, can obtain the heart activity condition under the condition that a testee cannot feel the detection state, and cannot cause psychological burden to the testee after long-term use. BCG contains a large amount of useful heart physiological information and can effectively assist doctors in diagnosing and analyzing various cardiovascular diseases.
Many noninvasive cardiac function detection methods commonly used in clinic include Electrocardiogram (ECG), flat-panel motion test (TET), heart color Doppler Ultrasound (UCG), etc., which do not cause trauma to human body, but require close contact between electrodes or cardiac probes and human body, which brings great inconvenience and psychological stress to the person to be detected. Moreover, due to the stimulation effect of the electrode on the human body, the electrode is not suitable for long-time use, and local skin itch and even ulceration can be caused by long-time electrode pasting. Therefore, these methods for detecting cardiac function are not suitable for home and daily heart monitoring.
Disclosure of Invention
An object of the utility model is to provide a novel BCG signal real-time supervision early warning ware based on wifi transmission technology, it uses the BCG method to carry out real-time supervision to human cardiovascular system, can not obtain the heart activity condition under the condition of detection state is experienced to the testee, uses for a long time can not cause psychological burden to the testee. BCG contains a large amount of useful heart physiological information and can effectively assist doctors in diagnosing and analyzing various cardiovascular diseases. The BCG signal can be transmitted to the remote server in a wireless mode by adopting a wifi communication method, and the BCG data can be transmitted to any host computer on the Internet because the wifi can be directly accessed to the Internet. After the BCG signal is transmitted to the remote server, the BCG signal can be further analyzed and processed, so that the heart hidden danger can be found in time, and early warning can be given.
In order to achieve the above object, the utility model provides a following technical scheme: a BCG signal monitoring early warning device based on wifi technology comprises a power supply circuit (1), a BCG circuit (2), an MCU circuit (3) and a wifi circuit (4); the power supply circuit (1) adopts a single lithium battery to provide power for the BCG circuit (2), the MCU circuit (3) and the wifi circuit (4), wherein the power of the BCG circuit (2) and the wifi circuit (4) is controlled by the MCU circuit (3); the BCG circuit (2) uses a 3-axis acceleration sensor to acquire BCG signal data of a human body, the acquired data are transmitted to the MCU circuit (3) to be processed, and the MCU circuit (3) sends the processed data to a far-end server; the MCU circuit (3) controls the power supplies of the BCG circuit (2) and the wifi circuit (4), is connected with the BCG circuit (2) and the wifi circuit (4) by using an SPI (serial peripheral interface), receives BCG signals collected by the BCG circuit (2), and sends processed data to a remote server through the wifi circuit (4) after processing; and the wifi circuit (4) receives the processed BCG signal transmitted by the MCU circuit (3) and sends the processed BCG signal to the remote server.
Preferably, the power supply circuit (1) adopts a single lithium battery to provide power for the BCG circuit (2), the MCU circuit (3) and the wifi circuit (4), wherein the power of the BCG circuit (2) and the wifi circuit (4) is controlled by the MCU circuit (3), the lithium battery is connected with the DP1 interface to supply power BAT, and the BAT is stabilized to 3.3V by the DU3 chip MCP33 to supply power to the whole circuit board; the BAT is also connected with chips DU1 and DU2 through 2 controllable MOS tubes DQ1 and DQ3 to generate controllable voltages W3.3V and E3.3V; W3.3V is used for supplying power to the wifi circuit (4), E3.3V is used for supplying power to the BCG circuit (2); control terminals W3.3V and E3.3V are generated by the MCU circuit (3) and are controlled by C _ W and C _ E.
Preferably, the BCG circuit (2) collects BCG signal data of a human body by using the 3-axis acceleration sensor, transmits the collected data to the MCU circuit (3) for processing, the MCU circuit (3) sends the processed data to the remote server, the circuit consists of a 3-axis acceleration sensor chip EU1, the type of the 3-axis acceleration sensor chip is ADXL345BCCZ, the power supply of the 3-axis acceleration sensor chip is supplied by the power supply circuit (1), and the 4 pins CS _ BCG, SCK, MOSI and MISO of the MCU circuit (3) are used for controlling the circuit.
Preferably, the MCU circuit (3) controls the power supplies of the BCG circuit (2) and the wifi circuit (4), the SPI interface is used for being connected with the BCG circuit (2) and the wifi circuit (4), the BCG signal collected by the BCG circuit (2) is received, the processed BCG signal is sent to a remote server through the wifi circuit (4), and the circuit consists of a low-power-consumption MCU chip MU1 (the model of the MCU chip is STM32L053R8T 6) and a program downloading interface MP 1; the system is communicated with a wifi circuit (4) through SPI (serial peripheral interface) CS _ WX, SCK, MOSI and MISO (single input single output) signals; communicating with the BCG circuit (2) by means of the SPI interfaces CS _ BCG, SCK, MOSI and MISO signals; the power supply of the BCG circuit (2) and the wifi circuit (4) is controlled through the C _ W and C _ E signals so as to reduce the overall power consumption.
Preferably, the wifi circuit (4) receives the processed BCG signal transmitted by the MCU circuit (3) and sends the processed BCG signal to a remote server, wherein the circuit consists of a wifi chip WU1, a Flash memory WU2, a wifi PCB antenna and a peripheral circuit thereof; the model adopted by the WU1 is ESP8266EX, the model adopted by the WU2 is AT45DB161D-SU, and a wifi antenna is realized in a PCB mode; the power supply is externally connected with a 28M crystal oscillator, the power supply is isolated by using a 4.3nH inductor, and all power supply pins are subjected to decoupling treatment; the reset pin is connected with the resistance-capacitance reset circuit; the power supply is provided by a power supply circuit (1), and SPI interfaces CS _ WX, SCK, MOSI and MISO are adopted to communicate with an MCU circuit (3).
Compared with the prior art, the beneficial effects of the utility model are as follows:
(1) the device can be used for collecting cardiovascular information of a human body without contacting with the skin, and can be used without wound for a long time;
(2) psychological burden is not caused to the testee, and the heart hidden danger can be found in time;
(3) the system is in contact with a remote server through wifi, and data can be directly transmitted to any host on the Internet;
(4) the design of low power consumption can be operated stably for a long time.
Drawings
The drawings that the utility model relates to explain as follows:
FIG. 1 is a general block diagram of the system of the present invention;
FIG. 2 is a power supply circuit diagram;
FIG. 3 is a circuit diagram of a BCG;
FIG. 4 is a circuit diagram of an MCU;
fig. 5 is a wifi circuit diagram.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 of the drawings, a drawing,
a BCG signal monitoring early warning device based on wifi technology comprises a power supply circuit (1), a BCG circuit (2), an MCU circuit (3) and a wifi circuit (4); the power supply circuit (1) adopts a single lithium battery to provide power for the BCG circuit (2), the MCU circuit (3) and the wifi circuit (4), wherein the power of the BCG circuit (2) and the wifi circuit (4) is controlled by the MCU circuit (3); the BCG circuit (2) uses a 3-axis acceleration sensor to acquire BCG signal data of a human body, the acquired data are transmitted to the MCU circuit (3) to be processed, and the MCU circuit (3) sends the processed data to a far-end server; the MCU circuit (3) controls the power supplies of the BCG circuit (2) and the wifi circuit (4), is connected with the BCG circuit (2) and the wifi circuit (4) by using an SPI (serial peripheral interface), receives BCG signals collected by the BCG circuit (2), and sends processed data to a remote server through the wifi circuit (4) after processing; and the wifi circuit (4) receives the processed BCG signal transmitted by the MCU circuit (3) and sends the processed BCG signal to the remote server.
Referring to figures 1 and 2 of the drawings,
the power supply circuit (1) adopts a single lithium battery to provide power for the BCG circuit (2), the MCU circuit (3) and the wifi circuit (4), wherein the power of the BCG circuit (2) and the wifi circuit (4) is controlled by the MCU circuit (3), the lithium battery is connected with a DP1 interface to supply power BAT, and the BAT is stabilized to 3.3V through a DU3 chip MCP33 to supply power to the whole circuit board; the BAT is also connected with chips DU1 and DU2 through 2 controllable MOS tubes DQ1 and DQ3 to generate controllable voltages W3.3V and E3.3V; W3.3V is used for supplying power to the wifi circuit (4), E3.3V is used for supplying power to the BCG circuit (2); control terminals W3.3V and E3.3V are generated by the MCU circuit (3) and are controlled by C _ W and C _ E.
The circuit principle is as follows: the power supply circuit (1) generates 3 paths of 3.3V power supplies which respectively supply power to the MCU circuit (3), the wifi circuit (4) and the BCG circuit (2); wherein the MCU circuit (3) is in a continuous power-on state and generates 2 control signals C _ W and C _ E for controlling the power supplies of the wifi circuit (4) and the BCG circuit (2); the control circuit adopts an MOS control method, the selected MOS transistors DQ1 and DQ3 have small leakage currents, when the control circuit is in a cut-off state, the leakage currents are smaller than 1uA and can be almost ignored, and therefore the power consumption of the whole module only needs to consider the power consumption of the MCU circuit (3) in most time.
Referring to figures 1 and 3 of the drawings,
the BCG circuit (2) collects BCG signal data of a human body by using the 3-axis acceleration sensor and transmits the collected data to the MCU circuit (3) for processing, the MCU circuit (3) sends the processed data to the remote server, the circuit consists of a 3-axis acceleration sensor chip EU1, the model of the 3-axis acceleration sensor chip EU1 is ADXL345BCCZ, the power supply of the circuit is supplied by the power supply circuit (1), and the 4 pins CS _ BCG, SCK, MOSI and MISO of the MCU circuit (3) are used for controlling the circuit.
The circuit principle is as follows: ADXL345BCCZ is a high-precision 3-axis acceleration sensor, can sense the small stress change of a human body when in close contact with the human body, can directly obtain heart rate and respiration rate information after MCU digital filtering, and then obtains other human body physiological indexes through subsequent analysis and calculation.
Referring to figures 1 and 4 of the drawings,
the MCU circuit (3) controls the power supplies of the BCG circuit (2) and the wifi circuit (4), is connected with the BCG circuit (2) and the wifi circuit (4) by using an SPI (serial peripheral interface), receives BCG signals collected by the BCG circuit (2), and sends processed data to a remote server through the wifi circuit (4) after processing, wherein the circuit consists of a low-power-consumption MCU chip MU1 (the model of which is STM32L053R8T 6) and a program downloading interface MP 1; the system is communicated with a wifi circuit (4) through SPI (serial peripheral interface) CS _ WX, SCK, MOSI and MISO (single input single output) signals; communicating with the BCG circuit (2) by means of the SPI interfaces CS _ BCG, SCK, MOSI and MISO signals; the power supply of the BCG circuit (2) and the wifi circuit (4) is controlled through the C _ W and C _ E signals so as to reduce the overall power consumption.
The circuit principle is as follows: the power supply circuit (1) continuously supplies power to the MCU circuit (3), and the MCU circuit (3) controls the power supplies of the BCG circuit (2) and the wifi circuit (4) to reduce power consumption; human BCG signal data acquired by the BCG circuit (2) are transmitted to the MCU circuit (3) through the SPI; after being analyzed and processed, the MCU circuit (3) transmits data to the wifi circuit (4) through the SPI interface; the wifi circuit (4) transmits the data to the remote server and receives a control command of the remote server.
Referring to figures 1 and 5 of the drawings,
the wifi circuit (4) receives the processed BCG signal transmitted by the MCU circuit (3) and sends the signal to the remote server, wherein the circuit consists of a wifi chip WU1, a Flash memory WU2, a wifi PCB antenna and peripheral circuits thereof; the model adopted by the WU1 is ESP8266EX, the model adopted by the WU2 is AT45DB161D-SU, and a wifi antenna is realized in a PCB mode; the power supply is externally connected with a 28M crystal oscillator, the power supply is isolated by using a 4.3nH inductor, and all power supply pins are subjected to decoupling treatment; the reset pin is connected with the resistance-capacitance reset circuit; the power supply is provided by a power supply circuit (1), and SPI interfaces CS _ WX, SCK, MOSI and MISO are adopted to communicate with an MCU circuit (3).
The circuit principle is as follows: the circuit communicates with the remote server through wifi wireless mode, communicates with MCU circuit (3) through SPI interface CS _ WX, SCK, MOSI and MISO signal, and its power is controlled by MCU circuit (3), is in the outage state under the usual state to save the consumption.
In summary, the following steps: the utility model provides a BCG signal monitoring precaution device based on wifi technique, its not with skin contact collection human cardiovascular information, can use for a long time without woundless, it does not cause psychological burden to the testee, can in time discover heart hidden danger, it contacts with remote server through wifi, can give any host computer on the Internet with data direct transfer, its low-power consumption design, but long-term steady operation, consequently the effectual not enough of prior art of having solved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. A BCG signal monitoring early warning device based on wifi technology comprises a power supply circuit (1), a BCG circuit (2), an MCU circuit (3) and a wifi circuit (4); the power supply circuit (1) adopts a single lithium battery to provide power for the BCG circuit (2), the MCU circuit (3) and the wifi circuit (4), wherein the power of the BCG circuit (2) and the wifi circuit (4) is controlled by the MCU circuit (3); the BCG circuit (2) uses a 3-axis acceleration sensor to acquire BCG signal data of a human body, the acquired data are transmitted to the MCU circuit (3) to be processed, and the MCU circuit (3) sends the processed data to a far-end server; the MCU circuit (3) controls the power supplies of the BCG circuit (2) and the wifi circuit (4), is connected with the BCG circuit (2) and the wifi circuit (4) by using an SPI (serial peripheral interface), receives BCG signals collected by the BCG circuit (2), and sends processed data to a remote server through the wifi circuit (4) after processing; and the wifi circuit (4) receives the processed BCG signal transmitted by the MCU circuit (3) and sends the processed BCG signal to the remote server.
2. The BCG signal monitoring early warning device based on the wifi technology of claim 1, characterized in that, the power supply circuit (1) lithium battery connects DP1 interface to supply power BAT, BAT supplies power to the whole circuit board through DU3 chip MCP33 voltage stabilization to 3.3V; the BAT is also connected with chips DU1 and DU2 through 2 controllable MOS tubes DQ1 and DQ3 to generate controllable voltages W3.3V and E3.3V; W3.3V is used for supplying power to the wifi circuit (4), E3.3V is used for supplying power to the BCG circuit (2); control terminals W3.3V and E3.3V are generated by the MCU circuit (3) and are controlled by C _ W and C _ E.
3. The wifi technology based BCG signal monitoring early warning device according to claim 1, characterized in that the BCG circuit (2) is composed of 3 axis acceleration sensor chip EU1, its model is ADXL345BCCZ, its power is supplied by power supply circuit (1), controlled by 4 pins CS _ BCG, SCK, MOSI and MISO of MCU circuit (3).
4. The BCG signal monitoring early warning device based on wifi technology as claimed in claim 1, wherein the MCU circuit (3) is composed of low power consumption MCU chip MU1, program download interface MP 1; the MCU circuit (3) is communicated with the wifi circuit (4) through SPI (serial peripheral interface) CS _ WX, SCK, MOSI and MISO (single input single output) signals; communicating with the BCG circuit (2) by means of the SPI interfaces CS _ BCG, SCK, MOSI and MISO signals; the power supply of the BCG circuit (2) and the wifi circuit (4) is controlled through the C _ W and C _ E signals so as to reduce the overall power consumption.
5. The BCG signal monitoring early warning device based on the wifi technology as claimed in claim 1, characterized in that the wifi circuit (4) is composed of a wifi chip WU1, a Flash memory WU2, a wifi PCB antenna and its peripheral circuit; the model adopted by the WU1 is ESP8266EX, the model adopted by the WU2 is AT45DB161D-SU, and a wifi antenna is realized in a PCB mode; the power supply is externally connected with a 28M crystal oscillator, the power supply is isolated by using a 4.3nH inductor, and all power supply pins are subjected to decoupling treatment; the reset pin is connected with the resistance-capacitance reset circuit; the power supply is provided by a power supply circuit (1), and SPI interfaces CS _ WX, SCK, MOSI and MISO are adopted to communicate with an MCU circuit (3).
CN201922405201.0U 2019-12-27 2019-12-27 BCG signal monitoring early warning device based on wifi technology Active CN212118154U (en)

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Application Number Priority Date Filing Date Title
CN201922405201.0U CN212118154U (en) 2019-12-27 2019-12-27 BCG signal monitoring early warning device based on wifi technology

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