CN210354673U - Intelligent shoe for measuring human body sign information - Google Patents
Intelligent shoe for measuring human body sign information Download PDFInfo
- Publication number
- CN210354673U CN210354673U CN201920307247.6U CN201920307247U CN210354673U CN 210354673 U CN210354673 U CN 210354673U CN 201920307247 U CN201920307247 U CN 201920307247U CN 210354673 U CN210354673 U CN 210354673U
- Authority
- CN
- China
- Prior art keywords
- layer
- insulating layer
- main control
- circuit
- human body
- 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
- 239000002131 composite material Substances 0.000 claims abstract description 25
- 230000003750 conditioning effect Effects 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 13
- 229910052582 BN Inorganic materials 0.000 claims abstract description 9
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000004891 communication Methods 0.000 claims abstract description 9
- 239000002033 PVDF binder Substances 0.000 claims abstract description 6
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims abstract description 6
- 239000010410 layer Substances 0.000 claims description 116
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 26
- 229910052744 lithium Inorganic materials 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 25
- 230000002093 peripheral effect Effects 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 229910021389 graphene Inorganic materials 0.000 claims description 4
- 239000011241 protective layer Substances 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 229910000623 nickel–chromium alloy Inorganic materials 0.000 claims description 3
- 230000002457 bidirectional effect Effects 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 239000003822 epoxy resin Substances 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 230000033001 locomotion Effects 0.000 abstract description 14
- 230000033764 rhythmic process Effects 0.000 abstract description 8
- 230000029058 respiratory gaseous exchange Effects 0.000 abstract description 7
- 230000036387 respiratory rate Effects 0.000 abstract description 7
- 238000005259 measurement Methods 0.000 abstract description 6
- 230000003068 static effect Effects 0.000 abstract description 6
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 2
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 9
- 229910002804 graphite Inorganic materials 0.000 description 6
- 239000010439 graphite Substances 0.000 description 6
- -1 graphite alkene Chemical class 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 4
- 239000004593 Epoxy Substances 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000035479 physiological effects, processes and functions Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009532 heart rate measurement Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000037081 physical activity Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000035900 sweating Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 210000000707 wrist Anatomy 0.000 description 1
Images
Landscapes
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The utility model relates to a measure human sign information's intelligent shoes and sign measuring method, piezoelectricity method, the signal acquisition and the processing circuit of intelligent shoe-pad include piezoelectric cable sensor, signal conditioning circuit, host system, communication module. When a user is static, heart rate and respiration rate signals are collected through a sensor, then software and hardware filter interference signals, and the heart rate and respiration rate of a human body are measured; the user acquires the body movement signal through the sensor when running to obtain the number of steps when running. Its rhythm of the heart, respiratory rate, body movement value, step value all convey to terminal APP through bluetooth module and show. The graphene-hexagonal boron nitride composite film enhances the sensitivity of the PVDF piezoelectric film, can effectively measure the heart rate, the respiration rate and the body movement signal of a user in a non-contact manner, is portable in measurement, is suitable for real-time monitoring of the user at any time period, utilizes the temperature difference between the inner insulating layer and the outer insulating layer of the sensor during running, and converts and outputs effective voltage through the thermocouple array circuit, thereby effectively saving the electric energy consumption.
Description
Technical Field
The utility model relates to an intelligent shoe for measuring human body sign information; belongs to the field of physiological information monitoring equipment.
Background
In recent years, sub-health has become a major problem of global attention, and one of the remarkable manifestations thereof is often accompanied by abnormalities in physiological signals such as heart rate and respiratory rate. Even more alarming is that sub-health is largely a latent stage of disease, so effective monitoring and prevention of sub-health is of particular importance. Accurate real-time heart rate and respiratory rate detection can all reflect human health condition well, simultaneously according to the detection of heart rate also can be fine the human psychological condition of reflection, effectively remind people to carry out real-time prevention and regulation. At present, people pay more and more attention to self health, and aiming at the condition of sub-health, physical exercise can be basically strengthened, particularly, running exercise is normal, the number of running steps reflects the intensity of exercise, so that the effective recording of the number of running steps is also very critical to knowing the exercise level.
Possess the product that physiological signal such as accurate measurement rhythm of the heart, respiratory rate can accurately measure physical activity signal ability such as the step number of running again, to long distance running, for example the security promotion of marathon match, reduce casualties and have very big help. At present the product of this aspect is mainly that the combination photoelectric sensor and acceleration sensor realize, for example intelligent bracelet, can measure the pulse that is close with rhythm of the heart numerical value and the step number when running, but photoelectric sensor has very high requirement to wrist skin colour and cleanliness, and when the problem such as sweating appears in the running process, the pulse measurement accuracy of intelligent bracelet can greatly descend, can't provide accurate physiological data this moment and give the user.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve and how to monitor physiological signals such as human rhythm of the heart, respiratory rate when static, and the measurement difficult problem of intelligent shoe-pad and sign signal that carries out the meter step function, detects human body movement signal when running. An intelligent shoe for measuring human body sign information, a sign measuring method and a piezoelectric method are provided.
The utility model adopts the following technical scheme:
the intelligent shoe for measuring the human body sign information comprises a shoe body, wherein a shoe pad is arranged in the shoe body; a filling layer is arranged between the insole and the sole, a piezoelectric cable sensor layer is arranged between the filling layer and the insole, and a main control circuit and a lithium battery are arranged in the filling layer; the composite piezoelectric sensing cable sensor is arranged in the piezoelectric cable sensor layer, the signal output end of the composite piezoelectric sensing cable sensor is connected with the signal receiving end of the main control circuit, the wiring of the composite piezoelectric sensing cable sensor is wound into an S-shaped rectangle, the main control circuit is powered by a lithium battery, and the filling layer is provided with an external charging port for supplying power to the lithium battery; and the master control circuit transmits the obtained sensor signal of the composite piezoelectric sensing cable to the user side through the communication module. The main control circuit comprises a signal conditioning circuit, an AD conversion module, a main control chip, a communication module and a peripheral circuit; the AD conversion module converts the analog voltage signal output by the signal conditioning circuit into a digital signal and transmits the digital signal to the main control chip for processing; the model of the main control chip is STM32ZGT6, and the main control chip analyzes the processed signals and controls the peripheral circuit to work.
The intelligent shoe for measuring the human body sign information of the utility model is characterized in that the composite piezoelectric sensing cable sensor is connected with the thermocouple array; the thermocouple array is respectively connected to the lithium battery end and the plurality of light emitting diodes; the composite piezoelectric sensing cable sensor is used for converting the temperature difference into voltage through the thermocouple array in a thermal coupling mode so as to supply power to the lithium battery and the light emitting diode; the thermocouple array is in a voltage series structure; the thermocouple array is made of a nickel-chromium alloy material.
The utility model discloses an intelligent shoes of measurement human sign information, compound piezoelectricity sensing cable sensor constitute by first insulating layer, first flexible electrode layer, piezoelectric material layer, second flexible electrode layer, second insulating layer; the composite piezoelectric sensing cable sensor is in a cylindrical shape; a first insulating layer is arranged at the circle center part of the piezoelectric ceramic, a first flexible electrode layer is wrapped outside the first insulating layer, and a piezoelectric material layer is wrapped outside the first flexible electrode layer; the outer side of the piezoelectric material layer is wrapped with a second flexible electrode layer, and the outer side of the second flexible electrode layer is wrapped with a second insulating layer;
a plurality of first insulating layer cold leads are led out of the first insulating layer; a plurality of second insulating layer heat conducting wires are led out of the second insulating layer; the first insulating layer cold lead is respectively connected from the cold end of the thermocouple array; the hot wires of the second insulating layer are respectively connected from the hot end of the thermocouple array;
a first electrode lead and a second electrode lead are respectively led out of the first flexible electrode layer and the second flexible electrode layer; the first electrode lead and the second electrode lead are respectively connected with a signal conditioning circuit in the main control circuit;
the signal conditioning circuit comprises a pre-charge amplifying circuit, a feedback circuit, a primary low-pass filter circuit, a power frequency trap circuit, a primary voltage amplifying circuit, a secondary voltage amplifying circuit and a secondary low-pass filter circuit. The pre-charge amplifying circuit firstly amplifies and converts charge signals output by the piezoelectric cable sensor into voltage signals, the feedback circuit is used for inhibiting signal interference of an input end, interference of high-frequency and power-frequency noise is further filtered by the primary low-pass filter circuit and the power-frequency trap circuit, and finally analog voltage signals with required high signal-to-noise ratio are obtained by the two-stage voltage amplifying circuit and the secondary low-pass filter circuit;
in the intelligent shoe for measuring human body sign information, a protective layer is arranged between the piezoelectric cable sensor layer and the insole; a metal outer shell is arranged on the outer sides of the lithium battery and the main control circuit; the metal outer shell is provided with a shell external interface; and the shell external interface is used for leading out a lead for connecting the lithium battery with the main control circuit.
The intelligent shoe for measuring human body sign information of the utility model is characterized in that the main control circuit comprises a main control chip, a signal conditioning circuit, a peripheral circuit and a power module; the main control chip is connected with the peripheral circuit in a bidirectional way; the power module is connected with the main control chip, the signal conditioning circuit and the peripheral circuit; the output end of the signal conditioning circuit is connected with the signal input end of the main control chip; the peripheral circuit is an instrument amplifier circuit; the voltage converted by the thermocouple array is connected through an instrument amplifier circuit to store electric energy in a lithium battery or supply the electric energy to a light-emitting diode.
The utility model discloses an intelligent shoe for measuring human body sign information, the communication module is composed of a Bluetooth receiver and a Bluetooth transmitter; the Bluetooth receiver is a Bluetooth end of a user mobile phone, and the Bluetooth transmitter is a Bluetooth transmitting module in the master control circuit.
In the intelligent shoe for measuring human body sign information, the first insulating layer is made of epoxy resin material;
the first flexible electrode layer is made of graphene materials;
the piezoelectric material layer adopts a PVDF film;
the second flexible electrode layer is made of graphene materials;
the second insulating layer adopts a hexagonal boron nitride film.
The measuring method of the intelligent shoe for measuring the human body sign information comprises the following steps:
after a user wears a shoe body, a main control circuit obtains sign signals from a composite piezoelectric sensing cable sensor and judges whether the user is in a standing state, a walking state or a running state according to the magnitude of the signals;
step two, if the signal is small, the user is in a static state, the physiological signal is collected through a piezoelectric cable sensor, then the interference signal is filtered by software and hardware, and the heart rate, the respiration rate and the body movement value of the human body are measured;
step three, if the signal is large, the user is in a running state, the body movement signal is collected through the piezoelectric cable sensor, and the body movement signal is processed through the signal conditioning circuit to obtain the number of steps during running;
step four, comparing the heart rate, the respiration rate, the body movement value and the step number information obtained by the measurement in the step two and the step three with normal values through a communication module and transmitting the information to a user side,
step five, after the user stops exercising after selecting in the step four, measuring the physiological signals again after 10 minutes, wherein the duration time is 5 minutes, and then comparing the physiological signals with normal values to confirm whether the body has abnormal conditions; if still abnormal, stop running.
Measure measuring method of human sign information's intelligent shoes, the normal value of rhythm of the heart, respiratory rate, body movement value be preset value, save in master control circuit behind the preset value.
Measure human sign information's intelligent shoes coupling piezoelectricity method, its characterized in that, the method is as follows:
1) after the user wears the shoe body, the body temperature of the foot of the user is transferred to a second insulating layer in the composite piezoelectric sensing cable sensor, the second insulating layer generates heat, and the heat is transmitted to the thermocouple array from the hot end of the thermocouple array through a heat wire of the second insulating layer;
2) keeping the current temperature of the first insulating layer without generating heat, wherein a temperature difference is generated between the second insulating layer and the first insulating layer in the step 1);
3) utilizing the temperature difference of the first insulating layer in the second insulating layer step 2) in the step 1) and the thermocouple principle; the thermocouple array converts the temperature difference into voltage;
4) and (3) respectively transmitting the voltage converted by the thermocouple array in the step 3) to a lithium battery storage and a light emitting diode through an instrumentation amplifier circuit.
Advantageous effects
The utility model provides an its piezoelectric cable sensor of intelligent shoes of measurement human sign information chooses for use PVDF as piezoelectric material, regard graphite alkene as the electrode layer to strengthen piezoelectric sensor's sensitivity effectively, utilize thermoelectric material hexagonal boron nitride as outer insulating layer, can convert the heat collection that produces when running into the electric energy for intelligent shoe-pad.
The utility model discloses a sign measuring method of measuring human sign information's intelligent shoes have the intelligent shoe-pad that detects human sign signal and possess two functions, and when the user had a rest static, the physiology signal is comparatively big, can be accurate detect out human rhythm of the heart and respiratory rate, and the obvious grow of body movement signal when the user runs, is far greater than physiology signal, can be used for calculating the step number of running.
The utility model discloses a piezoelectricity method of measuring human sign information's intelligent shoes select for use graphite alkene-hexagonal boron nitride combined material can produce ultrafast heat transmission to there is the difference in temperature in utilizing inlayer epoxy insulating layer and the outer insulating layer of hexagonal boron nitride, designs out the thermocouple array, conversion, storage and utilization electric energy.
Drawings
FIG. 1 is an outline view of the intelligent shoe of the present invention;
FIG. 2 is an overall structure view of the intelligent insole of the present invention;
fig. 3 is a top view of the piezoelectric cable sensor layer of the intelligent insole of the present invention;
fig. 4 is a schematic cross-sectional view of a piezoelectric cable sensor according to the present invention;
fig. 5 is a schematic diagram of the connection of the piezoelectric cable sensor and the thermocouple array according to the present invention;
FIG. 6 is a circuit diagram of the instrumentation amplifier of the present invention connected to a lithium battery;
fig. 7 is a circuit diagram of the instrumentation amplifier of the present invention.
Fig. 8 is a structure diagram of the main control circuit of the present invention;
fig. 9 is a low-pass filter circuit diagram of the present invention;
fig. 10 is a main flow chart of the system of the present invention;
fig. 11 is a diagram of the variation of the motion waveform of the present invention;
fig. 12 is the normal heart rate schematic diagram of different people of the utility model.
In the figure, 1-1 is a shoe body, 2 is an insole, 3 is a protective layer, 4 is a composite piezoelectric cable sensor layer, 5 is a filling layer, 6 is a charging port, 7 is a photodiode, 8-1 is a thermocouple array, 8-2 is an instrument amplifier circuit, 9 is a lithium battery, 10 is a main control circuit, 11 is a metal outer shell, 12 is a shell outer port, and 13 is a sole; the composite piezoelectric sensing cable 4-1, 4-2 is a first insulating layer, 4-3 is a first flexible electrode layer, 4-4 is a piezoelectric material layer, 4-5 is a second flexible electrode layer, 4-6 is a second insulating layer, 4-7 is a first electrode lead, 4-8 is a second electrode lead, 4-9 is a second insulating layer hot lead, and 4-10 is a first insulating layer cold lead.
Detailed Description
In order to make the purpose and technical solution of the embodiments of the present invention clearer, the following description will clearly and completely describe the technical solution of the embodiments of the present invention by combining the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.
The intelligent shoe for measuring human body sign information shown in fig. 1 and 2 comprises a shoe body 1-1, wherein an insole 2 is arranged in the shoe body; the system comprises a composite piezoelectric cable sensor, a thermocouple array sensor and a system circuit; a filling layer 5 is arranged between the insole 2 and the sole 13, a composite piezoelectric cable sensor layer 4 is arranged between the filling layer 5 and the insole, the composite piezoelectric cable sensor cabling coil is wound into an S-shaped rectangle, a main control circuit 10 is powered by a lithium battery, and an external charging port 6 for supplying power to a lithium battery 9 is arranged on the filling layer; the main control circuit 10 transmits the obtained sensor signal of the composite piezoelectric sensing cable to the user side through the communication module.
The insole 2 can be common insole and filler. The protective layer 3 prevents water penetration and dust ingress, while having some flexibility to ensure effective contact of the person's foot with the piezoelectric cable sensor. The filler layer 5 under the piezoelectric cable sensor layer 4 may be filled with rubber for the main control circuit and the battery to be fixed. The charging port 6 is used for charging the outside of the lithium battery and is connected with the lithium battery; the light-emitting diode 7 can flicker when running at night, and the instrument amplifier circuit 8-2 is connected with the lithium battery and the light-emitting diode 7; the lithium battery 9 is used for storing electric energy generated by the thermocouple array 8-1, is connected with the main control circuit and supplies power to the main control circuit; the main control circuit 10 mainly processes human body sign signals measured by the piezoelectric cable sensor, transmits the processed data to the outside through the wireless Bluetooth module, and is provided with a non-sealed stainless steel protective shell 11 on the outer layer to prevent the main control circuit from being crushed during running and has the anti-electromagnetic interference capability; the outer shell interface 12 ensures the normal transmission of wired and wireless signals; the sole 13 may be made of rubber to increase flexibility.
Fig. 3 is a top view of the piezoelectric cable sensor layer of the intelligent insole, which is formed by the composite piezoelectric sensing cable 4-1 in a rectangular wiring manner, so that the advantage of increasing the contact point with the sole of the human body is that the physical sign data of the human body can be measured more accurately.
Fig. 4 is a schematic cross-sectional view of a piezoelectric cable sensor, which adopts a concentric circle structure and sequentially comprises a first insulating layer 4-2, a first flexible electrode layer 4-3, a piezoelectric material layer 4-4, a second flexible electrode layer 4-5 and a second insulating layer 4-6 from inside to outside.
The first insulating layer is epoxy, and first flexible electrode layer is graphite alkene, and the piezoelectric material layer adopts the PVDF material, and the second flexible electrode layer is graphite alkene, and the second insulating layer is hexagonal boron nitride, and the hexagonal boron nitride produces ultrafast heat transfer with graphite alkene mixed material in the second flexible electrode layer in the second insulating layer, and the hot current can not flow to graphite alkene layer in the shoe-pad, can condense in thermoelectric material hexagonal boron nitride in the picosecond time.
FIG. 5 is a schematic diagram of the connection between the piezoelectric cable sensor and the thermocouple array, and 4-7 and 4-8 are both leads led out from the electrode layer of the piezoelectric cable sensor and used for transmitting charge signals generated by the PVDF film to a signal conditioning circuit. 4-9 are hot wires leading from the second insulating layer and 4-10 are cold wires leading from the first insulating layer. And 8-1 is a thermocouple array, and the thermocouple array is made of nickel-chromium alloy. The temperature difference is converted into voltage by utilizing the temperature difference between two insulating layers and the working principle of a thermocouple. The thermocouple array adopts a voltage series connection structure, the voltage value is effectively increased, and if the internal temperature of the first insulating layer is T0, the conversion voltage V1= EAB (T1, T0) + EAB (T2, T0) and the conversion voltage V2= EAB (T3, T0) + EAB (T4, T0) are provided, wherein EAB is the thermal electromotive force between two points; t1, T2, T3, and T4 are different hot end temperatures of the thermocouple array, respectively.
Fig. 6 and fig. 7 are circuit diagrams of an instrumentation amplifier, where a1 and a2 are in-phase differential input modes, the in-phase input can greatly increase the input impedance of the circuit, reduce the attenuation of the circuit to weak input signals, the differential input can make the circuit amplify only differential mode signals, and only follow the common mode input signals, so that the ratio of the amplitude of the differential mode signals and the amplitude of the common mode signals sent to the subsequent stage is increased, and thus in a differential amplification circuit composed of an operational amplifier A3 as a core component, under the condition that the CMRR requirement is not changed, the precision matching requirements of resistors R3 and R4, and Rr and R5 can be obviously reduced, so that the instrumentation amplifier circuit has better common mode rejection capability than a simple differential amplification circuit. Under the conditions of R1= R2, R3= R4 and Rr = R5, the resistance value of Rs can be adjusted to adjust the circuit gain, and the gain is G = (1 +2R 1/Rs) (Rr/R3). The output voltage of the instrumentation amplifier circuit is stored in a lithium battery to supply power to the system circuit, and the output voltage of the other instrumentation amplifier circuit is used for lightening an Led of the sole.
Fig. 8 is a diagram of a system circuit structure, wherein the system circuit structure includes a signal conditioning circuit, an AD conversion module, a main control chip, a communication module, and a peripheral circuit; the utility model discloses power module includes analog power supply, reference power supply and digital power supply, and analog power supply provides operating voltage for signal conditioning circuit and analog-to-digital conversion module, and reference power supply also is used for providing operating voltage for analog-to-digital conversion module, and digital power supply provides required operating voltage for main control chip and bluetooth module. The signal conditioning circuit comprises a pre-charge amplifying circuit, a feedback circuit, a primary low-pass filter circuit, a power frequency trap circuit, a primary voltage amplifying circuit, a secondary voltage amplifying circuit and a secondary low-pass filter circuit. The pre-charge amplifying circuit firstly amplifies and converts charge signals output by the piezoelectric cable sensor into voltage signals, the feedback circuit is used for inhibiting signal interference of an input end, interference of high-frequency and power-frequency noise is further filtered by the primary low-pass filter circuit and the power-frequency trap circuit, and finally analog voltage signals with required high signal-to-noise ratio are obtained by the two-stage voltage amplifying circuit and the secondary low-pass filter circuit; the AD conversion module adopts an AD4002 high-speed high-precision analog-to-digital converter, and converts the obtained analog voltage into a digital signal to be processed by the main control chip. The main control chip selects STM32ZGT6, is connected with the mobile phone terminal APP through the Bluetooth module, and displays the processed data on the mobile phone terminal APP through an algorithm.
Fig. 9 is a low-pass filter circuit diagram, parameters are shown in the figure, according to the characteristics of weak physiological signals and low frequency, high-frequency clutter is guaranteed to be filtered, meanwhile, useful low-frequency signals are kept as far as possible, a FilterPro supporting DEsally-key topological structure is selected for the low-pass filter circuit, the passband cut-off frequency is 20Hz, the allowed passband ripple is 1dB, the stopband frequency is 50Hz, and the stopband attenuation is a five-order chebyshev low-pass filter of 45 dB.
Fig. 10 is a main flow chart of a system of intelligent insoles for detecting human body sign signals, wherein the first step of the system operation is to judge the signal intensity and select the operation mode according to the signal intensity. When the signal is greater than 1V, the user is in the state of running, carries out the meter step calculation of running, sends the step number of calculating to user's cell phone terminal APP through the bluetooth. Under the condition that the signal is less than 1V, the user is in a static state, the physiological signal of the human body is tested, the heart rate and the breathing rate of the user are extracted according to the wavelet algorithm and then compared with the sample frequency in the system, and when the measured physiological signal of the heart rate, the breathing rate and the like exceeds the normal value, the mobile phone gives an alarm to prompt the user to stop running temporarily; after resting for 10 minutes, the physiological signals are measured again, the duration time is 5 minutes, and then the physiological signals are compared with normal values to confirm whether the body has abnormal conditions. If still abnormal, stop running.
Fig. 11 shows the waveform change chart of resting and running exercise of the user, which is the waveform change curve of the user from no body movement to starting running in the whole view. The stage 1 is a human body vibration signal oscillogram under the motionless and static condition, and the stage two is a normal walking wave with large amplitude, low frequency and obvious body movement. The 3-stage running oscillogram has larger amplitude, faster frequency and obvious body movement compared with the two stages, and the step number is calculated from the moment.
Fig. 12 is a graph of heart rates for different populations, with heart rates for children between 100 and 140 beats/minute, for young adults between 80 and 100 beats/minute, for middle aged adults between 60 and 80 beats/minute, and for elderly people below 60 beats/minute. According to different crowd's rhythm of heart circumstances and terminal APP rhythm of heart display value contrast, if in normal range, terminal APP shows heart rate value and curve in real time, if the specific people heart rate of survey is not in the scope, cell-phone terminal APP makes the warning.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. An intelligent shoe for measuring human body sign information comprises a shoe body, wherein an insole is arranged in the shoe body; the method is characterized in that: a filling layer is arranged between the insole and the sole, a piezoelectric cable sensor layer is arranged between the filling layer and the insole, and a main control circuit and a lithium battery are arranged in the filling layer; the composite piezoelectric sensing cable sensor is arranged in the piezoelectric cable sensor layer, the signal output end of the composite piezoelectric sensing cable sensor is connected with the signal receiving end of the main control circuit, the wiring of the composite piezoelectric sensing cable sensor is wound into an S-shaped rectangle, the main control circuit is powered by a lithium battery, and the filling layer is provided with an external charging port for supplying power to the lithium battery; and the master control circuit transmits the obtained sensor signal of the composite piezoelectric sensing cable to the user side through the communication module.
2. The intelligent shoe for measuring human body sign information according to claim 1, wherein: the composite piezoelectric sensing cable sensor is connected with the thermocouple array; the thermocouple array is respectively connected to the lithium battery end and the plurality of light emitting diodes; the composite piezoelectric sensing cable sensor is used for converting the temperature difference into voltage through the thermocouple array in a thermal coupling mode so as to supply power to the lithium battery and the light emitting diode; the thermocouple array is in a voltage series structure; the thermocouple array is made of a nickel-chromium alloy material.
3. Intelligent shoes for measuring human body sign information according to claim 1 or 2, characterized in that: the composite piezoelectric sensing cable sensor consists of a first insulating layer, a first flexible electrode layer, a piezoelectric material layer, a second flexible electrode layer and a second insulating layer; the composite piezoelectric sensing cable sensor is in a cylindrical shape; a first insulating layer is arranged at the circle center part of the piezoelectric ceramic, a first flexible electrode layer is wrapped outside the first insulating layer, and a piezoelectric material layer is wrapped outside the first flexible electrode layer; the outer side of the piezoelectric material layer is wrapped with a second flexible electrode layer, and the outer side of the second flexible electrode layer is wrapped with a second insulating layer;
a plurality of first insulating layer cold leads are led out of the first insulating layer; a plurality of second insulating layer heat conducting wires are led out of the second insulating layer; the first insulating layer cold lead is respectively connected from the cold end of the thermocouple array; the hot wires of the second insulating layer are respectively connected from the hot end of the thermocouple array;
a first electrode lead and a second electrode lead are respectively led out of the first flexible electrode layer and the second flexible electrode layer; the first electrode lead and the second electrode lead are respectively connected with the main control circuit.
4. The intelligent shoe for measuring human body sign information according to claim 1, wherein: a protective layer is arranged between the piezoelectric cable sensor layer and the insole; a metal outer shell is arranged on the outer sides of the lithium battery and the main control circuit; the metal outer shell is provided with a shell external interface; and the shell external interface is used for leading out a lead for connecting the lithium battery with the main control circuit.
5. The intelligent shoe for measuring human body sign information according to claim 2, wherein: the main control circuit comprises a main control chip, a signal conditioning circuit, a peripheral circuit and a power supply module; the main control chip is connected with the peripheral circuit in a bidirectional way; the power module is connected with the main control chip, the signal conditioning circuit and the peripheral circuit; the output end of the signal conditioning circuit is connected with the signal input end of the main control chip; the peripheral circuit is an instrument amplifier circuit; the voltage converted by the thermocouple array is connected through an instrument amplifier circuit to store electric energy in a lithium battery or supply the electric energy to a light-emitting diode.
6. The intelligent shoe for measuring human body sign information according to claim 1, wherein the communication module is composed of a Bluetooth receiver and a Bluetooth transmitter; the Bluetooth receiver is a Bluetooth end of a user mobile phone, and the Bluetooth transmitter is a Bluetooth transmitting module in the master control circuit.
7. The intelligent shoe for measuring human body sign information according to claim 3, wherein the first insulating layer is made of epoxy resin material;
the first flexible electrode layer is made of graphene materials;
the piezoelectric material layer adopts a PVDF film;
the second flexible electrode layer is made of graphene materials;
the second insulating layer adopts a hexagonal boron nitride film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920307247.6U CN210354673U (en) | 2019-03-12 | 2019-03-12 | Intelligent shoe for measuring human body sign information |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920307247.6U CN210354673U (en) | 2019-03-12 | 2019-03-12 | Intelligent shoe for measuring human body sign information |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210354673U true CN210354673U (en) | 2020-04-21 |
Family
ID=70245111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920307247.6U Active CN210354673U (en) | 2019-03-12 | 2019-03-12 | Intelligent shoe for measuring human body sign information |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210354673U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110063721A (en) * | 2019-03-12 | 2019-07-30 | 南京信息工程大学 | Measure the intelligent shoe and sign measurement method, piezoelectric approach of human body physical sign information |
-
2019
- 2019-03-12 CN CN201920307247.6U patent/CN210354673U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110063721A (en) * | 2019-03-12 | 2019-07-30 | 南京信息工程大学 | Measure the intelligent shoe and sign measurement method, piezoelectric approach of human body physical sign information |
| CN110063721B (en) * | 2019-03-12 | 2024-03-22 | 南京信息工程大学 | Intelligent shoe for measuring human body sign information, sign measuring method and piezoelectric method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104000571A (en) | Bracelet capable of collecting multi-parameter health indexes | |
| CN107773231B (en) | Heart rate measuring device and measuring method thereof | |
| JP2014509231A5 (en) | ||
| JP2001504718A (en) | Patient monitoring ring sensor | |
| CN106384481A (en) | Remote Internet-based first-aid alarm device with fall posture judgment function | |
| CN211241961U (en) | Multifunctional medical intelligent bracelet | |
| CN108289619A (en) | Sleep monitor system | |
| CN104257362A (en) | Monitoring system for human body physiological signals | |
| CN103637784A (en) | ZigBee technology based physiological parameter acquisition system | |
| CN102499672A (en) | Client-side device of wireless electrocardiogram monitoring system | |
| CN210354673U (en) | Intelligent shoe for measuring human body sign information | |
| CN103932685B (en) | For the sensor of human body rhythm and pace of moving things vibration | |
| CN107334467A (en) | Blood pressure detecting wrist-watch | |
| CN110063721B (en) | Intelligent shoe for measuring human body sign information, sign measuring method and piezoelectric method | |
| CN105125200A (en) | Wireless ear clip type earphone cardiotachometer and control method thereof | |
| CN203815439U (en) | Sensor used for detecting rhythm vibration of human body | |
| CN205019032U (en) | Multi -functional body temperature monitored control system | |
| CN207768376U (en) | A kind of intelligence children's temperature monitoring warning device | |
| CN209122210U (en) | Wearable blood oxygen heart rate and body-temperature monitoring device | |
| KR101369213B1 (en) | Monitoring system for physiological signals using bicycle | |
| CN205107655U (en) | Intelligent watch of monitoring blood pressure blood oxygen electrocardio | |
| CN212229795U (en) | Earplug type infrared thermometer and monitoring and early warning system thereof | |
| US12015449B2 (en) | Sensing apparatus and system | |
| CN113413161A (en) | In-ear type acquisition device for multiple physiological parameters | |
| CN203379119U (en) | Physical sign monitoring system on furniture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240315 Address after: No. 8, 6th Lane, Hongyu Third Street, Guancheng District, Dongguan City, Guangdong Province, 523000 Patentee after: He Xiaodong Country or region after: China Address before: No.219, ningliu Road, Jiangbei new district, Nanjing, Jiangsu Province, 210032 Patentee before: Nanjing University of Information Science and Technology Country or region before: China |
|
| TR01 | Transfer of patent right |