CN108451512A - A kind of wearable medical monitoring equipment based on Android phone - Google Patents
A kind of wearable medical monitoring equipment based on Android phone Download PDFInfo
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- CN108451512A CN108451512A CN201710096883.4A CN201710096883A CN108451512A CN 108451512 A CN108451512 A CN 108451512A CN 201710096883 A CN201710096883 A CN 201710096883A CN 108451512 A CN108451512 A CN 108451512A
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- present
- equipment based
- wearable medical
- monitoring equipment
- android phone
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Classifications
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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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
- A61B5/0816—Measuring devices for examining respiratory frequency
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
- A61B5/14542—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue for measuring blood gases
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6802—Sensor mounted on worn items
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/746—Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms
Abstract
The wearable medical monitoring equipment based on Android phone that the present invention relates to a kind of, the present invention use STM32F103ZET6 chips as hardware platform processing core；Electrocardiogram acquisition module uses BMD101 chips；Temperature data acquisition uses DS18B20 sensors；Wireless communication uses Bluetooth technology.The present invention can monitor human body physiological parameter in real time, and be transferred to monitoring center, and monitoring center can save the data in local data base.The module design of the present invention all follows small, at low cost, strong antijamming capability principle, meets portable feature in design, convenient for users to wearing in daily life.
Description
Technical field
The invention patent relates to electronic design arts more particularly to a kind of based on the wearable of Android phone
Medical monitoring equipment.
Background technology
The development of wearable device has been enter into high-speed development period, and various products emerge one after another, and wearable Medical Devices with
Its portability and the intelligent first choice for becoming monitoring human body physical sign.Current wearable Medical Devices are mainly needle in the application of hospital
Application to hospital care, in hospital ward, by wearable Medical Devices to patient's blood pressure, heart rate, blood oxygen saturation, body temperature
It is monitored with human body vital signs such as respiratory rates.
Description of the drawings
Fig. 1：Human body health monitoring system general diagram.
Fig. 2：Overall construction drawing.
Fig. 3：Power circuit diagram.
Fig. 4：W25Q64 chip circuit figures.
Fig. 5：Analog front circuit figure.
Fig. 6：Electrocardio and heart rate data acquisition circuit figure.
Fig. 7：DS18B20 internal structure charts.
Fig. 8：DS18B20 temperature-measurement principle schematic diagrames.
Fig. 9：DS18B20 temperature measurement circuit schematic diagrams.
Figure 10：Physiological parameter function shows figure.
Figure 11：Master Control Center program flow diagram.
Figure 12：Bluetooth module peripheral circuit diagram.
Figure 13：System data transmission flow chart.
Patent of invention content
The wearable medical monitoring equipment based on Android phone that the invention patent relates to a kind of, the present invention use
STM32F103ZET6 chips are as hardware platform processing core；Electrocardiogram acquisition module uses BMD101 chips；Temperature data acquisition
Use DS18B20 sensors；Wireless communication uses Bluetooth technology.
The present invention can monitor human body physiological parameter in real time, and be transferred to monitoring center, and monitoring center can be by data
It preserves in the local database.
The module design of the present invention all follows small, at low cost, strong antijamming capability principle, meets in design just
The characteristics of taking formula, convenient for users to wearing in daily life.
Specific implementation mode
In order to make the object, technical solution and advantage of patent of the present invention be more clearly understood, below in conjunction with attached drawing and implementation
Example, is further elaborated patent of the present invention.It should be appreciated that specific embodiment described herein is only used to explain
Patent of the present invention, is not intended to limit the present invention patent.
The wearable medical monitoring equipment based on Android phone that the invention patent relates to a kind of, the present invention use
STM32F103ZET6 chips are as hardware platform processing core；Electrocardiogram acquisition module uses BMD101 chips；Temperature data acquisition
Use DS18B20 sensors；Wireless communication uses Bluetooth technology.
Further, the present invention will be accomplished that the data acquisition of electrocardio, body temperature, main control unit handle data volume
Analysis, and wirelessly it is transferred to monitor system.It realizes the wirelessly research of wearable health monitor system and sets
Meter.The overall frame of system is as shown in Figure 1.Master Control Center selection is STM32F103ZET6 processors, and the processor is by meaning method half
Conductor company produces, its effect is to be received, parsed to the data volume of the collected human parameters of module, located in systems
Reason, is transferred to wireless module, then be wirelessly transmitted in Android phone with serial mode.Wireless module part uses
Bluetooth wireless technology, bluetooth wireless network operate in the ISM of 2400 ~ 2483.5 wave bands in the 2.4Hz of global general-use（Industry,
Science and medicine）In frequency range, Bluetooth technology bandwidth is suitable and low-power consumption, stability is high, penetrability is strong.
Further, the modular structure of hardware platform totality of the invention includes ecg signal acquiring module, temperature detection
Module, wireless module, power module and Master Control Center.Software platform is exactly the design and Android phone of SCM program
The exploitation of software.The overall structure of system is as shown in Figure 2.
Further, the present invention uses the STM32F103ZET6 chips of ARM V7 frameworks as central processing unit.
Further, power pack of the invention uses lithium battery power supply, 5V lithium batteries to have energy comparison height, use the longevity
The features such as life is long, self-discharge rate is very low, light-weight, high/low temperature is adaptable, environmentally protective, while meeting portable feature.
The power supply for controlling chip STM32 uses AMS1117-3.3 voltage-stablizers, can be by 5V power goods in 3.3V, and ensure that electric current is defeated
Go out.System centre electrical signal collection module, detecting sphygmus and blood oxygen saturation acquisition module, temperature data acquisition module are all 3.3V electricity
Pressure, central processing unit voltage are 3.3V, and bluetooth module power supply is 3.3V.Power circuit is as shown in Figure 3.
Further, present invention selection preserves the physiological parameter information of acquisition using FLASH reservoirs.The FLASH of selection
Chip is the SPI FLASH product W25Q64 of Hua Bang companies, it has the memory space of 8M bytes, is preserved enough prolonged raw
Manage information.W25Q64 also has more than 100,000 erase-write cycles, and each equipment has unique 64 ID, operating voltage 2.7V
To 3.6V.And this memory supports standard SPI interface, SPI is a kind of full-duplex communication bus of high speed, only need to connect 4
A pin, is greatly saved processor resource, the maximum SPI clocks of support can 80MHz, can match with the SPI interface of STM32
It closes, uses DMA method fast reading and writing data.W25Q64 chip circuits are as shown in Figure 4.Wherein, CS pins are chip select input, CLK
Pin is serial clock input, and DO pins are data output, and DI pins are data inputs, it is only necessary to by this 4 pins and STM32
It connects, after the operating mode that SPI is configured by program, so that it may to read and write the data in FLASH memory.
Further, electrocardio of the invention, heart rate data acquisition module have selected BMD101 chips, the first body of BMD101
Product is very small, and specification is only 3mm*3mm*0.6mm, low in energy consumption, is powered using 3.3V, a digit chip is secondly used as, in it
AFE(analog front end) is set.For collected bio signal, BMD101 has a set of dedicated algorithm, because possessing Digital Signal Processing
Unit can accurately complete the calculating of data.The function of BMD101 is very powerful, it has built-in proprietary algorithm, simultaneously
DSP is had cured to calculate the digital filtering of acquisition, internal System Management Unit is the core of BMD101, system configuration
And communication, all thus core is completed for operation and the management of power supply.Its intended application is exactly clinical cardioelectric monitor and analysis, heart rate
Variation and monitoring, BMD101 is one chip solution, small, low in energy consumption, be suitable for portable device, can hold very much
Easy is integrated on target device.Analysis for AFE(analog front end) mainly includes low noise amplifier and ADC.AFE(analog front end)
Block diagram and its interface sensor and Integrated circuit digital part it is as shown in Figure 5.AFE(analog front end) receives the simulation of different short arcs
Input signal, signal remove its big slow flip-flop for including in signal by high-pass filter, and then signal is by can
Gain low noise amplifier is programmed, LNA outputs are converted to 16 digital quantities by ADC.The built-in sensors of BMD101 close inspection
Survey ability, between two sensor input pins, usually more than 19-25 megaohms can trigger sensor state.A kind of number control
Oscillator processed is also contained in BMD101, it provides a fully-integrated 22.1MHz clock reference signal.
Further, BMD101 connects there are one independent power input VDD and for the noise limited in electrocardiosignal
Ground isolation circuit, circuit are as shown in Figure 6.C1 devices in circuit are filter assembly.D1, D2 are ESD diode, it
Play the role of being electrostatic protection.SEP/SEN is preferably connected simulation ground, and the biography of potential supply power and noise-sensitive is isolated
Sensor circuit.
Further, the present invention uses DS18B20 sensors, this temperature sensor is small, strong antijamming capability, essence
Degree is high, and single bus interface and single chip communication are used when reading temperature.Using DS18B20 sensors, in wearable design
Human skin can be in direct contact and measure body temperature.The temperature-measuring range of DS18B20 is -55 ~+125 DEG C, the resolution ratio of temperature sensor
It is programmable, respectively 9 to 12, highest precision is up to 0.0625 DEG C, when using 9 precision thermometrics, temperature transition
The speed of number is only 93.75ms.The inside of DS18B20 is mainly by 64 ROM, temperature sensor, temperature alarming trigger
It is formed with configuration register.64 ROM are mainly the address sequence number for having recorded temperature sensor itself, ensure that each sensing
Utensil has specific sequence code, realizes that the monobus of multiple sensors measures.Temperature sensor can be arranged in configuration register
Precision.DS18B20 also has warning function, and setting is alarmed after preset value TH and TL, after sensor has carried out temperature transition, meeting
Temperature value is pre-seted with alarm and is compared, it, will be by home position 1 of alarming if temperature goes beyond the scope.The inside of DS18B20
Structure is as shown in Figure 7.The temperature-measurement principle of DS18B20 is as shown in figure 8, high-temperature coefficient oscillator is influenced to cause by temperature change
Frequency of oscillation variation it is apparent, the pulse input of the signal of generation as counter 2, low-temperature coefficient oscillator is become by temperature
The influence of change is small, the pulse input of the signal of generation as counter 1.- 55 DEG C of corresponding numerical value preset first is to subtraction count
In device and temperature register, when starting counting up, low-temperature coefficient oscillator generates pulse signal, and counter 1 carries out subtraction fortune
It calculates, when count value is 0, the value of temperature register adds 1, and counter 1 is reloaded preset value, is so recycled, when counter 2 is
When 0, stop the cumulative of temperature register, the value in temperature register is measured temperature at this time.Slope accumulator is act as
Nonlinearity erron in compensation and amendment temperature taking process, can correct the preset value of counter 1.DS18B20 is read to measure
Temperature when, only need to be written 0xBE instruction, you can 9 temperature values in pickup internal RAM.It is arranged in design
The resolution ratio of DS18B20 is 12, then the numerical value that actual temperature is is multiplied by 0.0625, you can actual temperature is obtained, if
When the temperature of measurement is less than 0 DEG C, 1 is added after needing the binary number that will be measured to negate, actual temperature value is only multiplied by with 0.0625.
Further, the operating voltage of DS18B20 temperature sensors is 3.0 ~ 5.5V DC power supplies, and the design only needs to use
One temperature sensor, externally fed use the power voltage supply of 3.3V, circuit as shown in Figure 9.
Further, smart mobile phone application program function frame is as shown in Figure 10 in this monitor system, and wherein data show one
It is divided into three function modules, ECG module, body temperature module, blood oxygen module.System is implemented on application layer, it is intended to be each
Submodule provides unified main program interface and corresponding function.In the entire system, sensor data acquisition success, is transferred to master
Control center, Master Control Center are handled data according to the transformat of specific data, and network connection success, data pass through wireless
It is transferred on mobile phone interface, Android programmings is carried out according to the network transmission protocol, Socket realizes that communication interface, TCP concurrently take
Business device, multithreading complete the interfaces UI of mobile phone, realize reception and display to Human's health parameters.Master Control Center program flow
Journey is as shown in figure 11.Physiological compensation effects equipment uses Bluetooth communication, the bluetooth module used to use Guang Zhouhui with smart mobile phone
Hold the HC-05 chips of Information technology Co., Ltd production.HC-05 is civil, supports current most Bluetooth of mobile phone equipment,
And it can other upward-compatible higher agreements.The module has many advantages, such as that integrated level is high, stability is good, low in energy consumption, peripheral circuit is few,
The demand of this system is fully met, Figure 12 is the peripheral circuit of bluetooth module.Wherein STATUS_OUT is output state indicator light
Pin, D1 can flicker when being not connected with bluetooth, and MOD pins are bluetooth AT mode selection pins；RXD and TXD is serial communication interface,
Realize serial communication function.
Further, microcontroller uses DMA methods with the direct data transmission of bluetooth module, is not needed using DMA methods
CPU participates in transmission process, and after the request for only needing CPU responding DMAs, dma controller can directly execute data transfer procedure.In DMA
Control under, entire data transmission procedure does not need the intervention of CPU, does not interfere with the acquisition of physiological parameter, and can carry significantly
The service efficiency of high CPU and the speed of data transmission.System data transmission flow is as shown in figure 13.
The foregoing is merely the preferred embodiments of patent of the present invention, are not intended to limit the invention patent, all at this
All any modification, equivalent and improvement etc., should be included in patent of the present invention made by within the spirit and principle of patent of invention
Protection domain within.
Claims (4)
1. the wearable medical monitoring equipment based on Android phone that the invention patent relates to a kind of, the present invention uses
STM32F103ZET6 chips use BMD101 chips, temperature data acquisition as hardware platform processing core, electrocardiogram acquisition module
DS18B20 sensors, wireless communication is used to use Bluetooth technology.
2. a kind of wearable medical monitoring equipment based on Android phone according to claim 1, feature exist
In the present invention can monitor human body physiological parameter in real time, and be transferred to monitoring center, and monitoring center can save the data in
In local data base.
3. a kind of wearable medical monitoring equipment based on Android phone according to claim 1, feature exist
In the processing module present invention employs STM32F103ZET6 as system facilitates the extension of I/O interfaces and logic function, side
Just developer carries out the secondary development of system.
4. a kind of wearable medical monitoring equipment based on Android phone according to claim 1, feature exist
In the present invention is made smart mobile phone be connected with monitoring terminal, realized the wireless transmission of data, the physiology of body is made to join by bluetooth
Number is shown on smart mobile phone in real time.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710096883.4A CN108451512A (en) | 2017-02-22 | 2017-02-22 | A kind of wearable medical monitoring equipment based on Android phone |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710096883.4A CN108451512A (en) | 2017-02-22 | 2017-02-22 | A kind of wearable medical monitoring equipment based on Android phone |
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| CN108451512A true CN108451512A (en) | 2018-08-28 |
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| CN201710096883.4A Pending CN108451512A (en) | 2017-02-22 | 2017-02-22 | A kind of wearable medical monitoring equipment based on Android phone |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112890783A (en) * | 2021-03-09 | 2021-06-04 | 金陵科技学院 | Human body physiological characteristic detection system based on dynamic sensing technology |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203122372U (en) * | 2013-03-12 | 2013-08-14 | 李晓龙 | Real-time health monitoring and intelligent warning system based on Android technology and Internet of Things |
| CN203776896U (en) * | 2014-04-16 | 2014-08-20 | 王英 | Low power consumption mobile electrocardio monitoring system |
| CN105496391A (en) * | 2015-11-27 | 2016-04-20 | 武汉吉星医疗科技有限公司 | Digital electrocardiograph based on Android system |
-
2017
- 2017-02-22 CN CN201710096883.4A patent/CN108451512A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203122372U (en) * | 2013-03-12 | 2013-08-14 | 李晓龙 | Real-time health monitoring and intelligent warning system based on Android technology and Internet of Things |
| CN203776896U (en) * | 2014-04-16 | 2014-08-20 | 王英 | Low power consumption mobile electrocardio monitoring system |
| CN105496391A (en) * | 2015-11-27 | 2016-04-20 | 武汉吉星医疗科技有限公司 | Digital electrocardiograph based on Android system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112890783A (en) * | 2021-03-09 | 2021-06-04 | 金陵科技学院 | Human body physiological characteristic detection system based on dynamic sensing technology |
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Application publication date: 20180828 |