CN206120310U - Heart rate detection device that wrist strap formula is wireless - Google Patents
Heart rate detection device that wrist strap formula is wireless Download PDFInfo
- Publication number
- CN206120310U CN206120310U CN201620725629.7U CN201620725629U CN206120310U CN 206120310 U CN206120310 U CN 206120310U CN 201620725629 U CN201620725629 U CN 201620725629U CN 206120310 U CN206120310 U CN 206120310U
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- China
- Prior art keywords
- heart rate
- operational amplifier
- module
- microprocessor
- signal processing
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a heart rate detection device that wrist strap formula is wireless, includes power module and heart rate detection system, power module is the heart rate detection mains power supply, the heart rate detection system includes rhythm of the heart sensor, signal processing module, microprocessor, button module, communication module and display module, microprocessor's signal acquisition port links to each other with signal processing module output port, and signal processing module input port links to each other with the rhythm of the heart sensor, microprocessor input port links to each other with the button module, microprocessor output port links to each other with display module input port, microprocessor communication ports links to each other with communication module communication ports. It is first, be provided with bluetooth module, can utilize bluetooth and other bluetooth equipments to carry out radio communication, good sensitivity and response speed have, be applicable to each place. The second, the signal processing module of setting, the filtering performance is good, and the signal is stable, and the interference killing feature is strong.
Description
Technical field
This utility model is related to electronic surveying field, and in particular to a kind of wrist carried wireless heart rate measurer.
Background technology
Modern society, it is healthy to be increasingly subject to people's attention.As one of most important organ of human body, heart
Effect is to promote blood flow, provides sufficient blood flow to organ, tissue, to supply oxygen and various nutrient substance, and takes away
The end-product of metabolism, makes cell maintain normal metabolism and function.Once heart goes wrong, will threat to life, so protect
Hold the problem that health of heart is that everyone should be noted that.Heart rate is the important physical signs for weighing health of heart, with important
Diagnostic value and Practical significance.The medical monitor that hospital uses can be with each item number such as real-time monitoring Heart Rate, blood pressure
According to, but the common state of an illness will not be used, and the assistive device for using is complicated, and equipment cable is various, and cost of use is expensive, is unsuitable for general
Logical homes and offices are used.
At present, realize that the method for heart rate detection mainly there are the photoelectricity such as reflective infrared heart rate detection method, green glow volume diagram method
The mechanical measurement method such as measurement method, also resonance type pressure sensor.Also some bracelet class intelligent artifacts possess heart rate on market
Detection function, but add the function of excessively repeating with smart mobile phone so that and, using complexity, practicality is not strong for the function of product,
Manufacturing cost is also therefore higher.
Utility model content
This utility model is directed to the deficiencies in the prior art, proposes a kind of wrist carried wireless heart rate measurer, particular technique
Scheme is as follows：
A kind of wrist carried wireless heart rate measurer, it is characterised in that：It is including power module and heart rate detection system, described
Power module is powered for the heart rate detection system；
The heart rate detection system includes heart rate sensor, signal processing module, microprocessor, key-press module, communication mould
Block and display module；
The signals collecting port of the microprocessor is connected with the signal processing module output port, the signal processing
Module input mouth is connected with the heart rate sensor；
The microprocessor input mouth is connected with the key-press module；
The output end of microprocessor mouth is connected with the display module input port；
The microprocessor communication port is connected with the communication module COM1.
Preferably to realize this utility model, may further be：
The signal processing module includes operational amplifier U5, operational amplifier U6 and operational amplifier U7；
The operational amplifier U5 positive inputs are connected with electric capacity C6 first ends, the second ends of electric capacity C6 and the heart rate
Sensor is connected, and the second ends of electric capacity C6 also Jing resistance R5 is connected with the operational amplifier U5 reverse input ends, described
Between operational amplifier U5 reverse input ends and outfan, also bridging has resistance R8 and electric capacity C8 respectively；
The operational amplifier U5 outfans are connected with the operational amplifier U6 positive inputs, the operational amplifier
U6 reverse input ends are connected with the operational amplifier U6 outfans, operational amplifier U6 outfans also Jing resistance R10 and institute
State operational amplifier U7 reverse input ends to be connected；
The operational amplifier U7 positive inputs Jing resistance R9 is connected with the operational amplifier U5 positive inputs,
Transboundary there is resistance R11 between the operational amplifier U7 positive inputs and outfan, it is reversely defeated in the operational amplifier U7
Enter to hold Jing electric capacity C7 to be grounded.
Further：The communication module is bluetooth module.
Further：The heart rate sensor is reflective photoelectric sensor.
The beneficial effects of the utility model are：First, this utility model is provided with bluetooth module, it is possible to use bluetooth and its
Its bluetooth equipment carries out radio communication, with good sensitivity and response speed, it is adaptable to each place.Second, this practicality
The signal processing module of new setting, filtering performance are good, signal stabilization, strong antijamming capability.
Description of the drawings
Fig. 1 is system structure diagram of the present utility model；
Fig. 2 is heart rate sensor circuit figure in Fig. 1；
Fig. 3 is signal processing module figure in Fig. 1；
Fig. 4 is bluetooth module circuit diagram in Fig. 1；
Fig. 5 is display module and microcontroller circuit figure in Fig. 1；
Fig. 6 is key-press module circuit diagram in Fig. 1；
Fig. 7 is power module circuitry figure in Fig. 1.
Specific embodiment
Below in conjunction with the accompanying drawings presently preferred embodiments of the present invention is described in detail, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, apparent clearly defines so as to make to protection scope of the present invention.
As shown in Figures 1 to 7：A kind of wrist carried wireless heart rate measurer, including power module and heart rate detection system,
Power module is powered for heart rate detection system；
Heart rate detection system include heart rate sensor, signal processing module, microprocessor, key-press module, communication module and
Display module.
The heart rate sensor adopts SON1303, inside has two pairs of LEDs and reception pipe, and luminous tube provides green light source,
Human body skin can be irradiated, reception pipe receives the light that human body skin reflex is returned.
Transparency when tissue is congested during heartbeat reduces, and the light intensity that reception pipe is received weakens,
Transparency during tissue ischemia subtracts greatly, and the light intensity that reception pipe is received strengthens, Jing after the heliogram that SON1303 is received
Inner primary amplifying circuit amplifies, by VOUT pin output voltage signals.Resistance R2, R3 play current-limiting protection effect, and resistance R4 is used
In the drop-down clamper of VOUT pins.SON1303 exports the voltage signal consistent with palmic rate.
The signal of telecommunication that heart rate sensor is exported is filtered and is amplified by the signal processing module, and is sent to microprocessor mould
The I/O mouths of block.The signal processing module includes operational amplifier U5, operational amplifier U6 and operational amplifier U7, operation amplifier
Device U5, operational amplifier U6 and operational amplifier U7 are integrated operational amplifier SON221；
Operational amplifier U5 positive inputs are connected with electric capacity C6 first ends, the second ends of electric capacity C6 and heart rate sensor phase
Even, the second ends of electric capacity C6 also Jing resistance R5 is connected with operational amplifier U5 reverse input ends, is reversely input in operational amplifier U5
Between end and outfan, also bridging has resistance R8 and electric capacity C8 respectively；
Operational amplifier U5 outfans are connected with operational amplifier U6 positive inputs, operational amplifier U6 reverse input ends
It is connected with operational amplifier U6 outfans, also Jing resistance R10 is reversely defeated with operational amplifier U7 for operational amplifier U6 outfans
Enter end to be connected；
Operational amplifier U7 positive inputs Jing resistance R9 is connected with operational amplifier U5 positive inputs, in operation amplifier
Transboundary there is resistance R11 between device U7 positive inputs and outfan, be grounded in operational amplifier U7 reverse input end Jing electric capacity C7.
The signal processing module workflow：The signal Jing electric capacity C6 of above-mentioned heart rate sensor output is filtered, then Jing fortune
Calculate amplifier U5 to be amplified, electric capacity C8 is used for reducing interference.Operational amplifier U6 and operational amplifier U7 ratio of componentss relatively amplify
Shaping circuit, operational amplifier U6 is a voltage follower, the voltage signal Jing resistance R10 of the outfan of operational amplifier U6
Be filtered with electric capacity C7, and a reference voltage, operational amplifier U5 outputs are formed in operational amplifier U7 inverting inputs
The voltage signal at end accesses U7 in-phase input ends through resistance R9, if operational amplifier U7 homophase inputs terminal voltage is higher than anti-phase
Input terminal voltage, then the voltage signal OUT1 of operational amplifier U7 outfans is high level, otherwise is then low level.
Microprocessor adopts STC15L2K60S2, and running voltage representative value is 3.3V.The P3.2 of STC15L2K60S2 is outer
Portion's interrupting input pin, is set to rising edge interruption, is connected with the output port of the output OUT1 signals of signal processing module,
OUT1 often produces a low level to the skip signal of high level, and STC15L2K60S2 will trigger an external interrupt, be designated as
Heart beating.The output port output voltage signal of OUT2 is exported from signal processing module, connects the P1.7 of STC15L2K60S2
Foot, can directly read voltage data by ADC channel inside STC15L2K60S2.
Key-press module is provided with three buttons, and One function is built, both direction key：Left button and right button.Length can be entered by function key
Enter function selecting menu, both direction key carries out function selecting and parameter adjustment, then vice-minister is exited by function key.
Wireless communication module selects CC2540 bluetooth modules, is connected by serial ports with STC15L2K60S2, can be blue with other
Tooth equipment transmission data.CC2540 bluetooth modules are set to into host mode during use, using serial ports transparent transmission mode, other bluetooths
Equipment is used as receiver.R12 is pull-up resistor, for the electrification reset of CC2540 bluetooth modules.CC2540 bluetooth modules
P0.2 and P0.3 pins are respectively the reception of serial data and send pin, connect the transmitting terminal of STC15L2K60S2.CC2540
The P1.0 of bluetooth module is working condition output pin, connects the P3.3 pins of STC15L2K60S2.CC2540 bluetooth modules
P1.1 is connection status output pin, connects the P3.4 pins of STC15L2K60S2.STC15L2K60S2 reads the P3.3 of oneself
Whether pin can obtain the working condition of CC2540 bluetooth modules, read the P3.4 pins of oneself and can determine whether with other bluetooth equipments
Successful connection, high potential are successful connection, and electronegative potential is not connected.
Display module adopts resolution for the OLED12382 display screens of 128*32, can show time and heart rate data.
The built-in one piece of SSD1306 driving chip of OLED12382 display screens.Microprocessor module is passed to display module using 3 line SPI modes
Pass heart rate data.OLED12382 display screens do not show in stand-by mode, show, 3 minutes attonity automatic extinguishings when having button
Screen, can effectively reduce energy consumption.OLED12382 display screens show the time in main interface, enter heart rate measurement when there is button operation
During pattern, the real-time Simulation heart beating action in the form of progress bar shows heart rate information after measuring heart rate data.OLED12382 shows
Display screen external interface has five pins of DC, CLK, DIN, VCC, GND, and wherein DC is controlling switch, and CLK is clock pins, and DIN is
Data pin, VCC are power pins, and GND is grounding pin.DC, CLK, DIN constitute three line SPI of SSD1306 driving chips
Interface.When DC pins are high level, SSD1306 driving chips read the data of DIN pins；When DC pins are low level, DIN draws
The data of foot will write the depositor of SSD1306 driving chips as order.Each rising edge quilt of the data in DIN in CLK
Read.OLED12382 display screens are powered using internal boosting mode, and its running voltage is while compatibility 3.3V and 5V.
Power module is provided with the chargeable lithium cell of one piece of normal voltage 3.7V, rated capacity 200mAh, by Mini-
USB interface charges, and is charged management using constant current/constant voltage linear charger CH4054.Filled using anti-down inside CH4054
Circuit, can automatically adjust to charging current, can also automatically control charging process.
Claims (4)
1. a kind of wrist carried wireless heart rate measurer, it is characterised in that：Including power module and heart rate detection system, the electricity
Source module is powered for the heart rate detection system；
The heart rate detection system include heart rate sensor, signal processing module, microprocessor, key-press module, communication module and
Display module；
The signals collecting port of the microprocessor is connected with the signal processing module output port, the signal processing module
Input port is connected with the heart rate sensor；
The microprocessor input mouth is connected with the key-press module；
The output end of microprocessor mouth is connected with the display module input port；
The microprocessor communication port is connected with the communication module COM1.
2. a kind of wrist carried wireless heart rate measurer according to claim 1, it is characterised in that：The signal processing module
Including operational amplifier U5, operational amplifier U6 and operational amplifier U7；
The operational amplifier U5 positive inputs are connected with electric capacity C6 first ends, the second ends of electric capacity C6 and the sensing heart rate
Device is connected, and the second ends of electric capacity C6 also Jing resistance R5 is connected with the operational amplifier U5 reverse input ends, in the computing
Between amplifier U5 reverse input ends and outfan, also bridging has resistance R8 and electric capacity C8 respectively；
The operational amplifier U5 outfans are connected with the operational amplifier U6 positive inputs, and the operational amplifier U6 is anti-
It is connected to input with the operational amplifier U6 outfans, operational amplifier U6 outfans also Jing resistance R10 and the fortune
Calculate amplifier U7 reverse input ends to be connected；
The operational amplifier U7 positive inputs Jing resistance R9 is connected with the operational amplifier U5 positive inputs, described
Transboundary there is resistance R11 between operational amplifier U7 positive inputs and outfan, in the operational amplifier U7 reverse input ends
Jing electric capacity C7 is grounded.
3. a kind of wrist carried wireless heart rate measurer according to claim 1, it is characterised in that：The communication module is indigo plant
Tooth module.
4. a kind of wrist carried wireless heart rate measurer according to claim 1, it is characterised in that：The heart rate sensor is
Reflective photoelectric sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620725629.7U CN206120310U (en) | 2016-07-11 | 2016-07-11 | Heart rate detection device that wrist strap formula is wireless |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620725629.7U CN206120310U (en) | 2016-07-11 | 2016-07-11 | Heart rate detection device that wrist strap formula is wireless |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206120310U true CN206120310U (en) | 2017-04-26 |
Family
ID=58559955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620725629.7U Expired - Fee Related CN206120310U (en) | 2016-07-11 | 2016-07-11 | Heart rate detection device that wrist strap formula is wireless |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206120310U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112137607A (en) * | 2019-06-26 | 2020-12-29 | 深圳市冠旭电子股份有限公司 | Heart rate detection device and heart rate detection earphone |
-
2016
- 2016-07-11 CN CN201620725629.7U patent/CN206120310U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112137607A (en) * | 2019-06-26 | 2020-12-29 | 深圳市冠旭电子股份有限公司 | Heart rate detection device and heart rate detection earphone |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170426 Termination date: 20180711 |