CN206250093U - A kind of key device and electronic equipment with heart rate detecting function - Google Patents
A kind of key device and electronic equipment with heart rate detecting function Download PDFInfo
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- CN206250093U CN206250093U CN201621160867.4U CN201621160867U CN206250093U CN 206250093 U CN206250093 U CN 206250093U CN 201621160867 U CN201621160867 U CN 201621160867U CN 206250093 U CN206250093 U CN 206250093U
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- heart rate
- key device
- pressure sensor
- detecting function
- rate detecting
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Abstract
The utility model discloses a kind of key device and electronic equipment with heart rate detecting function, key device, cover plate, framework, pressure sensor and signal processing unit are included, signal processing unit is used for processing pressure sensor signal, and the pressure sensor connects signal processing unit.Electronic apparatus application has the key device.Effectively can be incorporated into heart rate measurement function in the button of portable electric appts by the utility model, realize the heart rate measurement of compliant electronic device original structure and user operation habits, while reducing holistic cost and power consumption.
Description
Technical field
The utility model belongs to the technical field of physiological signal measurements, more particularly to a kind of work(with heart rate measurement function
The electronic equipment of energy button and correlation.
Background technology
With the progress of integrated circuit and sensor technology, electronic equipment is increasingly minimized, and function is enriched further.Example
Such as the Wearable of rising in recent years, such as bracelet, intelligent watch, can be realized inside slight volume such as meter step,
The functions such as heart rate measurement；Increasing mobile phone is also integrated with the functions such as fingerprint recognition, heart rate measurement.
On portable devices, the heart rate measurement scheme of current main-stream is come real using photoplethysmographic graphical method
It is existing, human vas are irradiated by green LED and then receives the green glow of reflection or projection by photodiode, so
Afterwards by obtaining the signal of heart rate after signal processing circuit.The program is small volume, accuracy of measurement higher a little, therefore
It is widely applied on bracelet, intelligent watch, and mobile phone；Have the disadvantage that power consumption is big (driving luminous tube), perforate is needed in structure
(needing transmitting to receive light)；Special operation is needed in measurement, it is impossible to and original operating habit is compatible, such as on mobile phone, need
Want user to be pressed into finger and measurement is completed on special optical transmission window；And the power consumption of photoelectricity heart rate measurement scheme is high, cost
It is high.
On the other hand, in traditional scheme, also useful voltage sensitive sensor realizes the scheme of heart rate measurement, for example will be pressure-sensitive
Resistance film is affixed at wrist pulse, then pulse is by deforming upon piezo-resistance so as to change resistance value；Signal transacting electricity
Road detection piezo-resistance is worth changing can then extract pulse, heart rate signal.The advantage of the program is low cost, and power consumption also may be used
It is low to do；Have the disadvantage it is bad it is integrated on portable devices.For example, wanting that integrated piezoresistive pickup realizes heart rate on bracelet
During measurement, bracelet must be close to that heart rate measurement could be realized with wrist, otherwise extract less than heart rate signal.
As patent application 201520419379.X discloses a kind of sport health wrist-watch, including table body and watchband, in table
Single-chip microcomputer, main control chip and acceleration sensor are provided with vivo, the pressure sensor of high sensitive are provided with watchband, in institute
Stating be provided with table body can connect computer transmission data and carry out charging USB interface.The utility model is provided with height in watchband
The pressure sensor of susceptibility, electric signal (such as voltage), Ran Houchuan are converted to after beat pulse pressure is sensed by pressure signal
Enter circuit, circuit is by the group such as force samples pressure conditioning amplifier, comparator, converter, control circuit and data handling system
Into, single-chip microcomputer is connected to after comparing treatment, heart rate counting is carried out by core of single-chip microcomputer, and send main control chip treatment.This is special
Although profit application that realize measurement to heart rate, be not easy it is integrated on portable devices, and realizing that heart rate surveys
During amount, pressure sensor must be close to that heart rate measurement could be realized with wrist, otherwise extract less than heart rate signal.
The content of the invention
Based on this, therefore primary mesh of the present utility model be to provide a kind of key device with heart rate detecting function and
Electronic equipment, the key device and electronic equipment can effectively by heart rate measurement function be incorporated into portable electric appts by
In key, the heart rate measurement of compliant electronic device original structure and user operation habits is realized, while reducing holistic cost and power consumption.
Another mesh ground of the present utility model is to provide a kind of key device and electronics with heart rate detecting function to set
It is standby, the key device realize it is easy, it is with low cost, in can be widely applied to various electronic equipments.
To achieve the above object, the technical solution of the utility model is：
A kind of key device with heart rate detecting function, includes：
Cover plate, its outer surface as button front, there is provided give user pressing surface；
Framework, is arranged at the periphery or edge of the cover plate, for the button to be fixed on an electronic device, and makes lid
Plate has certain deformation space；
Pressure sensor, is fixed on lid surface, for experiencing the caused cover plate deformation of user's pressing；
Signal processing unit, for processing pressure sensor signal, the pressure sensor connects signal processing unit.
The signal processing unit, including analog digital converting unit, pressure rating recognition unit, and heart rate detection list
Unit；The output of pressure sensor connects analog digital converting unit, and analog digital converting unit is by the analog signal of pressure sensor
Processor MCU is sent into after being converted to data signal；MCU includes two processing units, respectively pressure rating recognition unit and the heart
Rate monitoring unit.
Preferably, the framework is a circumferential support frame, and the cover plate is embedded in the framework, and framework on the one hand can be with
Bracketing cover plate, makes cover plate bottom have elastic deformation space in the whole machine of electronic equipment, and another aspect framework can set with electronics
Standby combination is fixed.
Preferably, the framework is the metal supporting frames of an annular closure, preferably to support cover plate.
Preferably, pressure sensor is the piezoresistive element of diaphragm type, is engraved on substrate by printing or light, then
The relative inner surface in cover plate outer surface is fitted in by gluing；The substrate is generally flexible PCB (FPC).
Or, pressure sensor is the piezoresistive element of diaphragm type, and the inner surface of cover plate is engraved in by printing or light
And/or on outer surface；Piezoresistive element is printed or light is engraved on cover plate outer surface, and outer surface is planarized by injection.
The utility model provides a kind of electronic equipment with heart rate detecting function button, including：
Shell, for providing protection to display screen and supporting；
Display screen, installed in the front of shell, for presentation of information；
Mainboard, is arranged in shell, for information processing；
Above-mentioned key device, on device housings, can be depressed by a user.
Preferably, the button is arranged on shell, positioned at the side of display screen, or shell side.
Preferably, described electronic equipment is the mobile terminals, the function with heart rate detection such as mobile phone, panel computer
Key device constitute the HOME keys of the electronic equipment.
Key device and electronic equipment with heart rate detecting function that the utility model is realized, in the form of button
Measurement heart rate, user-friendly, while button and heart rate measurement multiplexing, without special setting, cost of implementation is low.
Effectively can be incorporated into heart rate measurement function in the button of portable electric appts by the utility model, be realized simultaneous
Hold the heart rate measurement of electronic equipment original structure and user operation habits, while reducing holistic cost and power consumption.
Brief description of the drawings
Fig. 1 is the key device structural representation of the first implementation method of the utility model.
Fig. 2 is the sectional view of key device A-A ' shown in Fig. 1.
Fig. 3 is the key device structural representation of second implementation method of the utility model.
Fig. 4 is the sectional view of key device A-A ' shown in Fig. 3.
Fig. 5 is the electronic devices structure schematic diagram that the utility model is implemented.
Fig. 6 is the equivalent circuit diagram of pressure sensor in Fig. 1 illustrated embodiments.
Fig. 7 is the circuit diagram that the utility model implements signal processing unit.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and implementation
Example, is further elaborated to the utility model.It should be appreciated that specific embodiment described herein is only used to explain
The utility model, is not used to limit the utility model.
Fig. 1, Fig. 2 show the dress of the button with heart rate measurement function that the utility model the first implementation method is realized
100 are put, framework 101, cover plate 102, pressure sensor 103 (including 4 piezo-resistances 1031~1034) and resinous wood is included
Material 104.Wherein, framework 101 is hollow torus structure, for limiting the space of button and providing physical support effect；Frame
There is support member 1015 on body 101, can be with bracketing cover plate 102.
Cover plate 102 be actually be used for provide button user's press surface with elastically-deformable thin slice, can be gold
Category, plastics or glass material, it is placed on support member 1015, and bottom has deformation space.
Pressure sensor 103 includes 4 piezo-resistances, respectively 1031~1034；Method of the piezo-resistance using printing
It is printed on cover plate both sides and (user's finger side is contacted when front refers to that user operates, the back side refers to relative with front
Face)；After piezo-resistance 1033 and 1034 has been printed, front can cover one layer of resin material 104 by Shooting Technique so that lid
Plate front planarizes.The sensitivity that can cause pressure sensor using this structure is improved, so as to realize heart rate measurement function.
Fig. 3, Fig. 4 are the key device 200 with heart rate measurement function shown in the utility model another embodiment,
It includes framework 201, cover plate 202 and pressure sensor module 203.Framework 201 is hollow cuboid structure, for limiting
The space of button and offer physical support effect；There is support member 2015 in framework 201, can be with bracketing cover plate 202；Cover plate 202 is real
Be on border for provide user's press surface of button with elastically-deformable thin slice, can be metal, plastics or glass material,
It is placed on support member 2015, and bottom has deformation space.
The difference of key device 100 with the first implementation method is, in this embodiment, pressure sensor module
203 are fitted in the back side of cover plate 202, so as to simplify assembly technology.Pressure sensor module 203 is by being printed on the substrate just back of the body two
Four piezo-resistances composition in face, substrate is using flexible circuit board material (FPC).
It is the electronic equipment for applying the key device 100 with rhythm of the heart function --- mobile phone 300, hand shown in Fig. 5
Machine 300 includes shell 301, display screen 302 and button 100, and display screen 302 is arranged on mobile phone front, and the lower section of display screen 302 sets
It is equipped with button 100.Button 100 as mobile phone HOME keys, there is provided the keypress function with pressure sensitive, and based on user's finger
Measure the function of heart rate.
During Fig. 6 is Fig. 1 illustrated embodiments, the equivalent circuit diagram of pressure sensor 103, including four piezo-resistances 1031
~1034, and difference electric bridge mode is connected into, wherein EPLUS is driving voltage anode, and EMINUS is driving voltage negative terminal；Output
Signal is Difference signal pair S+ and S-.
Fig. 7 show signal processing unit.The output S+ and S- of pressure sensor 103 connect analog-digital converter (ADC)
106；ADC 106 sends into processor MCU 107 after the analog signal of pressure sensor 103 is converted into data signal；MCU 107
Including two processing units, respectively pressure rating recognition unit, for keypress function, and rhythm of the heart unit, for the heart
Rate measures function.
Therefore, effectively can be incorporated into heart rate measurement function in the button of portable electric appts by the utility model,
The heart rate measurement of compliant electronic device original structure and user operation habits is realized, while reducing holistic cost and power consumption.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the utility model, it is all at this
Any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (9)
1. a kind of key device with heart rate detecting function, it is characterised in that the key device is included：
Cover plate, its outer surface as button front；
Framework, is arranged at the periphery or edge of the cover plate, for the button to be fixed on an electronic device, and has cover plate
There is certain deformation space；
Pressure sensor, is fixed on lid surface；
Signal processing unit, for processing pressure sensor signal, the pressure sensor connects signal processing unit.
2. there is the key device of heart rate detecting function as claimed in claim 1, it is characterised in that the signal processing unit,
Including analog digital converting unit, pressure rating recognition unit, and heart rate detection unit；The output of pressure sensor connects simulation number
Word converting unit, analog digital converting unit sends into processor after the analog signal of pressure sensor is converted into data signal
MCU；MCU includes two processing units, respectively pressure rating recognition unit and rhythm of the heart unit.
3. there is the key device of heart rate detecting function as claimed in claim 1, it is characterised in that the framework is a ring-type
Support frame, the cover plate is embedded in the framework, framework bracketing cover plate.
4. there is the key device of heart rate detecting function as claimed in claim 3, it is characterised in that the framework is an annular
The metal supporting frames of closure.
5. there is the key device of heart rate detecting function as claimed in claim 1, it is characterised in that pressure sensor is film
The piezoresistive element of formula, printing or light are engraved on substrate, are then fitted in the relative interior table in cover plate outer surface by gluing
Face；The substrate is flexible PCB.
6. there is the key device of heart rate detecting function as claimed in claim 1, it is characterised in that pressure sensor is film
The piezoresistive element of formula, printing or light are engraved on the inner surface of cover plate and/or outer surface.
7. a kind of electronic equipment with heart rate detecting function button, it is characterised in that the electronic equipment is included：
Shell, for providing protection to display screen and supporting；
Display screen, installed in the front of shell；
Mainboard, is arranged in shell；
Key device, on device housings.
8. there is the electronic equipment of heart rate detecting function button as claimed in claim 7, it is characterised in that the button is set
In on shell, positioned at the side of display screen, or shell side.
9. there is the electronic equipment of heart rate detecting function button as claimed in claim 7, it is characterised in that described electronics sets
Standby is mobile terminal, and the key device of the function with heart rate detection constitutes the HOME keys of the electronic equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621160867.4U CN206250093U (en) | 2016-11-01 | 2016-11-01 | A kind of key device and electronic equipment with heart rate detecting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621160867.4U CN206250093U (en) | 2016-11-01 | 2016-11-01 | A kind of key device and electronic equipment with heart rate detecting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206250093U true CN206250093U (en) | 2017-06-13 |
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ID=58996986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621160867.4U Active CN206250093U (en) | 2016-11-01 | 2016-11-01 | A kind of key device and electronic equipment with heart rate detecting function |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106449246A (en) * | 2016-11-01 | 2017-02-22 | 芯海科技（深圳）股份有限公司 | Key device with heart rate detection function and electronic equipment |
| CN111180237A (en) * | 2020-01-14 | 2020-05-19 | 维沃移动通信有限公司 | Electronic device |
| CN111970597A (en) * | 2017-11-27 | 2020-11-20 | 深圳市汇顶科技股份有限公司 | Earphone, method for detecting wearing state of earphone and electronic equipment |
-
2016
- 2016-11-01 CN CN201621160867.4U patent/CN206250093U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106449246A (en) * | 2016-11-01 | 2017-02-22 | 芯海科技（深圳）股份有限公司 | Key device with heart rate detection function and electronic equipment |
| CN111970597A (en) * | 2017-11-27 | 2020-11-20 | 深圳市汇顶科技股份有限公司 | Earphone, method for detecting wearing state of earphone and electronic equipment |
| CN111180237A (en) * | 2020-01-14 | 2020-05-19 | 维沃移动通信有限公司 | Electronic device |
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