CN110811581A - Human body multi-physiological information acquisition control system based on WI-FI protocol - Google Patents
Human body multi-physiological information acquisition control system based on WI-FI protocol Download PDFInfo
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- 230000036760 body temperature Effects 0.000 claims abstract description 25
- 239000003990 capacitor Substances 0.000 claims description 47
- 230000005540 biological transmission Effects 0.000 claims description 13
- 239000013078 crystal Substances 0.000 claims description 10
- 238000001914 filtration Methods 0.000 abstract description 4
- 238000007493 shaping process Methods 0.000 abstract description 3
- 238000010009 beating Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/0205—Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
- A61B5/02055—Simultaneously evaluating both cardiovascular condition and temperature
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/024—Detecting, measuring or recording pulse rate or heart rate
- A61B5/02416—Detecting, measuring or recording pulse rate or heart rate using photoplethysmograph signals, e.g. generated by infrared radiation
- A61B5/02427—Details of sensor
- A61B5/02433—Details of sensor for infrared radiation
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
Abstract
The invention discloses a human body multi-physiological information acquisition control system based on a WI-FI protocol, which can send acquired human body physiological information parameters (temperature and pulse) to an information control terminal for processing and displaying through a WI-FI wireless sensor network, generate pulse signals by using a pulse acquisition module and a temperature acquisition module, and input the pulse signals into a single chip microcomputer for data processing after filtering and shaping by an amplifying circuit, thereby outputting the pulse beating times within one minute and the body temperature of a human body, and has the advantages of simple circuit structure and good reliability.
Description
Technical Field
The invention relates to a physiological information acquisition control system, in particular to a human body multi-physiological information acquisition control system based on a WI-FI protocol, and belongs to the technical field of physiological information acquisition control circuits.
Background
At present, most of the medical level in hospitals adopt physiological parameter monitors. Along with more and more companies which can produce physiological parameter monitors in China, corresponding products also have the new characteristics of modern intellectualization, informatization, function diversification, convenient and fast use and the like, and the production level and the application level of the physiological parameter monitors are rapidly improved no matter in hardware or software.
The physiological parameter monitor developed in China is a non-intelligent product without software, a display screen is directly adopted to read data at a terminal, display in remote medical treatment cannot be achieved, a control circuit of the physiological parameter monitor is not convenient and fast to detect, and is not efficient enough, and the physiological parameter monitor is not convenient and fast to use.
Disclosure of Invention
The invention mainly aims to provide a human body multi-physiological information acquisition control system based on a WI-FI protocol, which can be conveniently displayed at an upper computer end, and has simple circuit structure and accurate and reliable test results.
The purpose of the invention can be achieved by adopting the following technical scheme:
the intelligent temperature-regulating pulse generator comprises a data acquisition end and a data display end, wherein the data display end is connected with the data acquisition end through WIFI, the data display end comprises two paths of A/D converters and a wireless data receiving module, each path of A/D converter converts an input voltage value into a 10-bit digital signal value, the data acquisition end comprises a single chip microcomputer, a pulse acquisition module, a temperature acquisition module, a wireless data transmission module, a steady-flow rectification module, a clock module and a reset module, the single chip microcomputer is connected with the clock module through XTAL2 and XTAL1 wiring ends, the single chip microcomputer is connected with the reset module through RST wiring ends, the single chip microcomputer is connected with the pulse acquisition module through VCC, P1.0 and GND wiring ends, the single chip microcomputer is connected with the temperature acquisition module through VCC, P2.2 and GND wiring ends, the single chip microcomputer is connected with the wireless data transmission module through GND, P3.1 and P3.0, a 3V input end of the wireless data, the pulse acquisition module comprises a resistor R3 connected with an input VCC and an anode of a light emitting diode in a photoelectric coupler U2, the other end of the resistor R3 is connected with a collector of a triode in the photoelectric coupler U2 and one end of a capacitor C4, an emitter of the triode in the photoelectric coupler U2 is grounded, a cathode of the light emitting diode in the photoelectric coupler U2 is connected with one end of a lower resistor R10, the other end of the resistor R10 is grounded, the other end of the capacitor C4 is connected with one end of a resistor R5 and one end of a resistor R11, the other end of the resistor R5 is connected with one end of a capacitor C5 and one end of a resistor R6, and the other end of the resistor R11 and the other end of the capacitor C5 are both grounded;
the data acquisition end is used for acquiring human body temperature, human body pulse information measured by finger fingertips is sent to the single chip microcomputer for processing and then sent through the wireless data transmission module, the data display end is used for receiving the human body temperature and the pulse information sent by the data acquisition end, and according to input voltage values of the human body temperature and the pulse information, corrected human body temperature values or pulse values are obtained according to a formula, wherein the human body temperature values or the pulse values are before correction, Y is the corrected human body temperature digital values or the pulse digital values, S is a correction value, and display is carried out according to the corrected human body temperature digital values and the pulse digital values.
Preferably, the temperature acquisition module includes a chip MLX90614, an SDA terminal of the chip MLX90614 is connected to a VDD3.3 terminal of the interface J2 through a resistor R3 on one hand, and is connected to an SDA terminal of the interface J2 on the other hand, an SCL terminal of the chip MLX90614 is connected to a VDD3.3 terminal of the interface J2 through a resistor R3 on the one hand, and is connected to an SCL terminal of the interface J2 on the other hand, a VDD terminal of the chip MLX90614 is connected to a VDD3.3 terminal of the interface J2, a Vst terminal of the chip MLX90614 is grounded, and an SDA terminal and an SCL terminal of the interface J2 are connected to P3.0 and P3.1 terminals of the single chip microcomputer, respectively.
Preferably, the steady-current rectification module comprises an AMS1117 module, a VIN terminal of the AMS1117 module is connected with a 5V power supply and an anode of a polar capacitor, a VOUT terminal of the AMS1117 module outputs a 3.3V power supply and is connected with one end of a group of capacitors, the other end of each capacitor is grounded, a cathode of the polar capacitor is also grounded, and a GND terminal of the AMS1117 module is grounded.
Preferably, the clock module comprises one end of a crystal oscillator Y1 and one end of a capacitor C2 which are connected with the terminals of the single chip microcomputer XTAL2, the other end of the capacitor C2 is grounded, the other end of the crystal oscillator Y1 is connected with one end of a capacitor C3, the other end of the capacitor C3 is grounded, and the other end of the crystal oscillator Y1 is further connected with the terminals of the single chip microcomputer XTAL 1.
Preferably, the reset module comprises a cathode of an active capacitor C1 connected with the RST terminal of the single chip microcomputer, an anode of a capacitor C1 is connected with the power supply VCC, a cathode of the active capacitor C1 is further connected with one end of a resistor R9, and the other end of the resistor R9 is grounded.
Preferably, the data acquisition end and the data display end are connected through a winlock control to realize WIFI.
The invention has the beneficial technical effects that:
the invention provides a human body multi-physiological information acquisition control system based on a WI-FI protocol, which is characterized in that a data acquisition end and a data display end are connected through WIFI, acquired human body physiological information parameters (such as temperature and pulse) are sent to an upper computer such as the data display end for processing and displaying, the checking is convenient, meanwhile, the temperature of a human body is acquired through a temperature acquisition module, the pulse acquisition module acquires human body pulse information, the pulse information is sent to a single chip microcomputer and then sent through a wireless data transmission module, meanwhile, the pulse acquisition module is tested by a finger part through a photoelectric coupler, reflection of translucency of capillary vessels can be attenuated due to pulsation of a circulation system and the pulse of human body blood, a triode arranged beside the part receives transmitted light of the capillary vessels and converts the light signal into an electric signal, the pulse is periodically changed, and the heart rate per minute is consistent with the pulse, so that the absorption intensity of the photoelectric coupler to infrared light is periodically changed, therefore, the change of the output signal of the infrared receiving triode is equal to the pulse heart rate change of arterial blood, so that the collected electric signal is only converted into a pulse signal, and the pulse heart rate frequency can be collected in real time after shaping and filtering.
Drawings
FIG. 1 is a circuit diagram of a single chip microcomputer and peripheral circuits of a preferred embodiment of a human multi-physiological information acquisition control system based on a WI-FI protocol according to the present invention;
fig. 2 is a circuit diagram of a pulse acquisition module of a human body multi-physiological information acquisition control system based on a WI-FI protocol according to a preferred embodiment of the present invention.
Fig. 3 is a circuit diagram of a temperature acquisition module of a preferred embodiment of a human multi-physiological information acquisition control system based on a WI-FI protocol according to the present invention.
Fig. 4 is a system block diagram of a human body multi-physiological information acquisition control system based on a WI-FI protocol according to a preferred embodiment of the present invention.
Fig. 5 is a human physiological information display diagram of a data display terminal of a human multi-physiological information acquisition control system based on a WI-FI protocol according to a preferred embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention more clear and definite for those skilled in the art, the present invention is further described in detail below with reference to the examples and the accompanying drawings, but the embodiments of the present invention are not limited thereto.
As shown in fig. 1-5, a human body multi-physiological information acquisition control system based on WI-FI protocol comprises a data acquisition end and a data display end, the data display end is connected with the data acquisition end through WIFI,
the data display end comprises two paths of A/D converters and a wireless data receiving module, each path of A/D converter converts the input voltage value into a 10-bit digital signal value,
the data acquisition end comprises a single chip microcomputer, a pulse acquisition module, a temperature acquisition module, a wireless data transmission module (namely a WI-FI module), a steady flow rectification module, a clock module and a reset module, the single chip microcomputer is connected with the clock module through XTAL2 and XTAL1 wiring ends, the single chip microcomputer is connected with the reset module through RST wiring ends, the single chip microcomputer is connected with the pulse acquisition module through VCC, P1.0 and GND wiring ends, the single chip microcomputer is connected with the temperature acquisition module through VCC, P2.2 and GND wiring ends, the single chip microcomputer is connected with the wireless data transmission module through GND, P3.1 and P3.0, the 3.3V input end of the wireless data transmission module is connected with the output end of the steady flow rectification module,
the pulse acquisition module comprises a resistor R3 connected with an input VCC and an anode of a light emitting diode in a photoelectric coupler U2, the other end of the resistor R3 is connected with a collector of a triode in the photoelectric coupler U2 and one end of a capacitor C4, an emitter of the triode in the photoelectric coupler U2 is grounded, a cathode of the light emitting diode in the photoelectric coupler U2 is connected with one end of a lower resistor R10, the other end of the resistor R10 is grounded, the other end of the capacitor C4 is connected with one end of a resistor R5 and one end of a resistor R11, the other end of the resistor R5 is connected with one end of a capacitor C5 and one end of a resistor R6, and the other end of the resistor R11 and the other end of the capacitor C5 are both grounded;
the data acquisition end is used for acquiring human body temperature, human body pulse information measured by finger tips is sent to the single chip microcomputer for processing and then sent through the wireless data transmission module, the data display end is used for receiving the human body temperature and the pulse information sent by the data acquisition end, and obtaining a corrected human body temperature value or a corrected pulse value according to a formula according to input voltage values of the obtained human body temperature and the pulse information, wherein the digital value or the pulse value of the human body temperature before correction is, Y is the corrected human body temperature digital value or the corrected pulse digital value, S is a correction value, and the corrected human body temperature digital value and the corrected pulse digital value are displayed; the model of the chip machine in this embodiment is STC12C5A6S2,
in this embodiment, the range of the input voltage values of the two a/D converters is 0-1.8V, M is 1.8V, the a/D converter is 10 bits, and thus the maximum digital value 1023 is obtained according to the formula (1)
Wherein, Y is the actual output human body temperature digital value or pulse digital value, m is the actual input human body temperature or pulse voltage value, thus obtain the deviation of 1V appearing in the input voltage value, output digital value deviation 568, namely there are 9 bit appearing deviations in 10 bits, to 10 bit number, wherein one bit is used for showing the decimal point, if there are 9 bit appearing deviations then the maximum deviation value can reach 10V, the acquisition mode of the corrected value, first, according to above formula (1), obtain a series of theoretical values that the input voltage corresponds to the output digital value, then through the experimental survey actual output digital value, subtract the actual output digital value from the theoretical value of the output digital value to remove the absolute value, finally, through counting the value that the deviation value appears the number of times the most is the corrected value;
in this embodiment, the temperature acquisition module includes a chip MLX90614, an SDA terminal of the chip MLX90614 is connected to a VDD3.3 terminal of an interface J2 through a resistor R3 on one hand, and is connected to an SDA terminal of the interface J2 on the other hand, an SCL terminal of the chip MLX90614 is connected to a VDD3.3 terminal of the interface J2 through a resistor R3 on the one hand, and is connected to an SCL terminal of an interface J2 on the other hand, a VDD terminal of the chip MLX90614 is connected to a VDD3.3 terminal of the interface J2, a Vst terminal of the chip MLX90614 is grounded, and the SDA and SCL terminals of the interface J2 are connected to P3.0 and P3.1 terminals of the single chip microcomputer, respectively.
The pulse signal sent to the SCL terminal of the chip MLX90164 by the single chip microcomputer is used for collecting the temperature of the SDA terminal of the chip MLX90164 when the pulse rises or falls, then the collected human body temperature voltage value is transmitted to the single chip microcomputer through an interface J2, and the current entering the chip MLX90164 is limited by arranging two resistors R3.
In this embodiment, the steady-current rectifying module includes an AMS1117 module, a VIN terminal of the AMS1117 module is connected to a 5V power supply and an anode of a polar capacitor, a VOUT terminal of the AMS1117 module outputs a 3.3V power supply and is connected to one end of a group of capacitors, the other end of the capacitors is grounded, a cathode of the polar capacitor is also grounded, and a GND terminal of the AMS1117 module is grounded.
The module carries out filtering processing on input voltage and output voltage by respectively arranging capacitors at the input end and the output end of the AMS1117 module, and outputs 3.3V after carrying out current stabilization and rectification on an input 5V power supply through the AMS1117 module.
In this embodiment, the clock module includes one end of a crystal oscillator Y1 and one end of a capacitor C2 connected to the XTAL2 terminal of the single chip microcomputer, the other end of the capacitor C2 is grounded, the other end of the crystal oscillator Y1 is connected to one end of a capacitor C3, the other end of the capacitor C3 is grounded, and the other end of the crystal oscillator Y1 is further connected to the XTAL1 terminal of the single chip microcomputer.
In the circuit, capacitors are arranged on two sides of the crystal oscillator to filter clock signals.
In this embodiment, the reset module includes a cathode of an active capacitor C1 connected to the RST terminal of the single chip microcomputer, an anode of a capacitor C1 is connected to the VCC, a cathode of the active capacitor C1 is further connected to one end of a resistor R9, and the other end of the resistor R9 is grounded.
The reset module controls the single chip microcomputer to reset.
In this embodiment, the data acquisition end and the data display end realize the WIFI connection through the winlock control.
To sum up, the system adopts the data acquisition end and the data display end to be connected through WIFI, the acquired human body physiological information parameters (such as temperature and pulse) are transmitted to an upper computer such as the data display end to be processed and displayed, the checking is convenient, meanwhile, the temperature of the human body is acquired through the temperature acquisition module, the pulse acquisition module acquires the pulse information of the human body, the pulse information is transmitted to the singlechip and then transmitted through the wireless data transmission module, meanwhile, the pulse acquisition module is tested by a finger part through a photoelectric coupler, because of the pulsation of the blood circulation system and the pulse of the human body, the reflection of the translucency of the capillary vessel can be attenuated, the transmission light is received by a triode arranged beside the part, the optical signal is converted into the electric signal, because the pulse is periodically changed, the heart rate per minute is consistent with the pulse, the photoelectric coupler can periodically change the absorption intensity of infrared light, so that the change of an output signal of the infrared receiving triode is equal to the change of the pulse heart rate of arterial blood, the collected electric signal is converted into a pulse signal, and the pulse heart rate can be collected in real time by amplifying, shaping and filtering the pulse signal. .
The above description is only for the purpose of illustrating the present invention and is not intended to limit the scope of the present invention, and any person skilled in the art can substitute or change the technical solution of the present invention and its conception within the scope of the present invention.
Claims (6)
1. A human body multi-physiological information acquisition control system based on a WI-FI protocol is characterized in that: the intelligent temperature-regulating pulse generator comprises a data acquisition end and a data display end, wherein the data display end is connected with the data acquisition end through WIFI, the data display end comprises two paths of A/D converters and a wireless data receiving module, each path of A/D converter converts an input voltage value into a 10-bit digital signal value, the data acquisition end comprises a single chip microcomputer, a pulse acquisition module, a temperature acquisition module, a wireless data transmission module, a steady-flow rectification module, a clock module and a reset module, the single chip microcomputer is connected with the clock module through XTAL2 and XTAL1 wiring ends, the single chip microcomputer is connected with the reset module through RST wiring ends, the single chip microcomputer is connected with the pulse acquisition module through VCC, P1.0 and GND wiring ends, the single chip microcomputer is connected with the temperature acquisition module through VCC, P2.2 and GND wiring ends, the single chip microcomputer is connected with the wireless data transmission module through GND, P3.1 and P3.0, a 3V input end of the wireless data, the pulse acquisition module comprises a resistor R3 connected with an input VCC and an anode of a light emitting diode in a photoelectric coupler U2, the other end of the resistor R3 is connected with a collector of a triode in the photoelectric coupler U2 and one end of a capacitor C4, an emitter of the triode in the photoelectric coupler U2 is grounded, a cathode of the light emitting diode in the photoelectric coupler U2 is connected with one end of a lower resistor R10, the other end of the resistor R10 is grounded, the other end of the capacitor C4 is connected with one end of a resistor R5 and one end of a resistor R11, the other end of the resistor R5 is connected with one end of a capacitor C5 and one end of a resistor R6, and the other end of the resistor R11 and the other end of the capacitor C5 are both grounded;
the data acquisition end is used for acquiring human body temperature, human body pulse information measured by finger fingertips is sent to the single chip microcomputer for processing and then sent through the wireless data transmission module, the data display end is used for receiving the human body temperature and the pulse information sent by the data acquisition end, and according to input voltage values of the human body temperature and the pulse information, corrected human body temperature values or pulse values are obtained according to a formula, wherein the human body temperature values or the pulse values are before correction, Y is the corrected human body temperature digital values or the pulse digital values, S is a correction value, and display is carried out according to the corrected human body temperature digital values and the pulse digital values.
2. The human body multi-physiological information acquisition control system based on the WI-FI protocol as claimed in claim 1, wherein: the temperature acquisition module comprises a chip MLX90614, wherein an SDA terminal of the chip MLX90614 is connected with a VDD3.3 terminal of an interface J2 through a resistor R3 on one hand, and is connected with an SDA terminal of the interface J2 on the other hand, an SCL terminal of the chip MLX90614 is connected with a VDD3.3 terminal of the interface J2 through a resistor R3 on the one hand, and is connected with an SCL terminal of an interface J2 on the other hand, the VDD terminal of the chip MLX90614 is connected with a VDD3.3 terminal of the interface J2, a Vst terminal of the chip MLX90614 is grounded, and the SDA terminal and the SCL terminal of the interface J2 are respectively connected with a P3.0 terminal and a P3.1 terminal of.
3. The human body multi-physiological information acquisition control system based on the WI-FI protocol as claimed in claim 1, wherein: the constant current rectification module comprises an AMS1117 module, a VIN terminal of the AMS1117 module is connected with a 5V power supply and an anode of a polar capacitor, a VOUT terminal of the AMS1117 module outputs a 3.3V power supply and is connected with one end of a group of capacitors, the other end of each capacitor is grounded, a cathode of the polar capacitor is also grounded, and a GND terminal of the AMS1117 module is grounded.
4. The human body multi-physiological information acquisition control system based on the WI-FI protocol as claimed in claim 1, wherein: the clock module comprises one end of a crystal oscillator Y1 and one end of a capacitor C2 which are connected with the terminals of the single chip microcomputer XTAL2, the other end of the capacitor C2 is grounded, the other end of the crystal oscillator Y1 is connected with one end of a capacitor C3, the other end of the capacitor C3 is grounded, and the other end of the crystal oscillator Y1 is also connected with the terminals of the XTAL1 of the single chip microcomputer.
5. The human body multi-physiological information acquisition control system based on the WI-FI protocol as claimed in claim 1, wherein: the reset module comprises a cathode of an active capacitor C1 connected with an RST terminal of the single chip microcomputer, an anode of a capacitor C1 is connected with a power supply VCC, the cathode of the active capacitor C1 is also connected with one end of a resistor R9, and the other end of the resistor R9 is grounded.
6. The human body multi-physiological information acquisition control system based on the WI-FI protocol as claimed in claim 1, wherein: and the data acquisition end and the data display end are connected through a winlock control to realize WIFI.
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