CN106020364A - Smart bracelet with searching function of mute mobile phone and hand gesture recognition method - Google Patents
Smart bracelet with searching function of mute mobile phone and hand gesture recognition method Download PDFInfo
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- CN106020364A CN106020364A CN201610512277.1A CN201610512277A CN106020364A CN 106020364 A CN106020364 A CN 106020364A CN 201610512277 A CN201610512277 A CN 201610512277A CN 106020364 A CN106020364 A CN 106020364A
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- 238000000034 method Methods 0.000 title claims description 13
- 230000001133 acceleration Effects 0.000 claims abstract description 36
- 230000033228 biological regulation Effects 0.000 claims description 10
- 230000000295 complement effect Effects 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 230000005674 electromagnetic induction Effects 0.000 claims description 4
- 238000012952 Resampling Methods 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 230000004927 fusion Effects 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 238000001356 surgical procedure Methods 0.000 claims description 2
- 238000004891 communication Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 5
- 230000000087 stabilizing effect Effects 0.000 abstract description 5
- 230000006870 function Effects 0.000 description 16
- 238000010586 diagram Methods 0.000 description 11
- 238000012360 testing method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000001514 detection method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 210000000707 wrist Anatomy 0.000 description 2
- DWDGSKGGUZPXMQ-UHFFFAOYSA-N OPPO Chemical compound OPPO DWDGSKGGUZPXMQ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/163—Wearable computers, e.g. on a belt
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- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
- A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
- A44C5/0007—Bracelets specially adapted for other functions or with means for attaching other articles
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/017—Gesture based interaction, e.g. based on a set of recognized hand gestures
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
- H04M1/72409—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories
- H04M1/72412—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories using two-way short-range wireless interfaces
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention provides a smart bracelet with a searching function of a mute mobile phone. The smart bracelet comprises a power supply unit, a voltage stabilizing unit, a Bluetooth unit, an upper computer Bluetooth interface, a singlechip microcomputer unit and a signal acquisition acceleration sensor, wherein the power supply unit is electrically connected with the voltage stabilizing unit; the voltage stabilizing unit is respectively and electrically connected with the Bluetooth unit, the singlechip microcomputer unit and the signal acquisition acceleration sensor; the Bluetooth unit is respectively connected with the upper computer Bluetooth interface and the singlechip microcomputer unit; the singlechip microcomputer unit is electrically connected with the signal acquisition acceleration sensor; the power supply unit supplies power to the whole bracelet. The smart bracelet provided by the invention is reasonable in design and convenient to use; by adoption of a Bluetooth communication mode, the smart bracelet has the advantages of time saving, labor saving, convenience for users, small size, easiness for carrying, low power consumption and long endurance time; the smart bracelet can be wirelessly charged and is very convenient.
Description
Technical field
The present invention relates to technical field of electronic products, be specifically related to a kind of Intelligent bracelet and gesture identification method seeking function with quiet mobile phone.
Background technology
Along with rapid technological growth, intelligence is dressed industry and is gradually risen.Intelligence wearable device has become one of topic being presently the most hot topic the most.The arriving in wearable intelligent equipment epoch means the intelligent extension of people, by these equipment, people can the more preferable outside information with self of perception, it is possible to the process information of highly efficient rate under computer, the network even auxiliary of other people, it is possible to realize the most seamless exchange.
In the most busy today, people's most of time every day is all in work.Mobile phone mute function is highly useful for most of people, all the more so especially for student and working clan.Live and work in this state, in order to not affect study and work, it has to mobile phone is adjusted to silent mode, is even switched off vibrations.For some negligent junior partners, mobile phone can not find thing common occurrence, is that mobile phone is lost sometimes, is that mobile phone really can not find rather than lost sometimes.Now, make a phone call both cannot also cannot shake by jingle bell, often worried because can not find mobile phone.
Although at present Ge Jia cell phone manufacturer has getting back mobile phone function, such as Baidu's cloud, OPPO, Semen setariae etc., but majority is giving for change for stolen mobile phone.And operating process also needs to a network computer, log in special website, input account number cipher, bother the most very much, can't solving practical problems quickly and easily.Also having some is to utilize App to carry out searching mobile phone, looks for the application of mobile phone (Whistle Android Finder) if any a interesting whistling.Can wake up up being in the mobile phone closing screen with whistle.Using a kind of voice-based man-machine interaction mode, whistle can wake up the voice assistant of mobile phone up, completes the operation of voice.Needing to order special little whistle, mobile phone needs voice assistant, uses process to need networking, the most just cannot use.
Summary of the invention
It is an object of the invention to as solving above-mentioned deficiency, it is provided that a kind of Intelligent bracelet and gesture identification method seeking function with quiet mobile phone.
It is an object of the invention to be achieved through the following technical solutions:
A kind of Intelligent bracelet seeking function with quiet mobile phone, including power subsystem, voltage regulation unit, bluetooth unit, host computer blue tooth interface, single machine unit and signals collecting acceleration transducer, power subsystem electrical connection voltage regulation unit, voltage regulation unit is electrically connected bluetooth unit, single machine unit and signals collecting acceleration transducer, bluetooth unit connects host computer blue tooth interface and single machine unit respectively, single machine unit electrical connection signals collecting acceleration transducer, power subsystem powers to whole bracelet.
Signals collecting acceleration transducer includes MPU6050 3-axis acceleration sensor.
Single machine unit includes STC15F2K60S2 singlechip chip.
Power subsystem uses wireless electromagnetic induction mode to charge.
The present invention has a following beneficial effect:
The present invention is reasonable in design, easy to use, use bluetooth communication mode, time saving and energy saving, facilitate user, volume is little, portable, low in energy consumption, cruising time is long, can select to carry out wireless charging, the most convenient, there is mobile phone and seek function, it is adjusted to silent mode at mobile phone be even switched off under vibrating state, only can make mobile phone jingle bell by simple gesture, bracelet is made to shake, thus reduce the worries of searching mobile phone, remotely gesture controls alarm clock, become more hommization, wake up up with vibrating effect simultaneously, the vibrations of contact effectively wake up you up from sleep soundly, Intelligent bracelet coordinates APP work based on Android mobile phone exploitation, one characteristic place of APP is exactly voltage acquisition, there is an electricity service condition in the software interface upper left corner, as mobile phone, display device battery electric quantity surplus, prompting user charging.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention；
Fig. 2 is sensor of the invention circuit diagram；
Fig. 3 is the bluetooth unit circuit diagram of the present invention；
Fig. 4 is the voltage regulation unit circuit diagram of the present invention；
Fig. 5 is the power unit circuit figure of the present invention；
Fig. 6 is the single machine unit circuit diagram of the present invention；
Fig. 7 is three components of the human motion of the present invention；
Fig. 8 is the gesture motion schematic diagram of the present invention；
Fig. 9 is the complementary filter schematic diagram of the present invention；
Figure 10 is the gesture motion identification schematic diagram of the present invention；
Figure 11 is the pedometer theory diagram of the present invention；
Figure 12 is the pedometer flow chart of the present invention；
Figure 13 is that flow chart sought by the mobile phone of the present invention；
Figure 14 is the cell phone incoming call flow chart of the present invention；
Figure 15 is the alarm clock on cell phone flow chart of the present invention；
Figure 16 is the program flow diagram of the present invention；
Figure 17 is the true step number of the present invention, monitoring step number and error curve diagram；
Figure 18 is the test accuracy curve chart of the present invention.
Detailed description of the invention
The present invention is further illustrated below in conjunction with the accompanying drawings:
As shown in Figure 1, a kind of Intelligent bracelet seeking function with quiet mobile phone, including power subsystem 1, voltage regulation unit 2, bluetooth unit 3, host computer blue tooth interface 4, single machine unit 5 and signals collecting acceleration transducer 6, power subsystem 1 electrically connects voltage regulation unit 2, voltage regulation unit 2 is electrically connected bluetooth unit 3, single machine unit 5 and signals collecting acceleration transducer 6, bluetooth unit 3 connects host computer blue tooth interface 4 and single machine unit 5 respectively, single machine unit 5 electrically connects signals collecting acceleration transducer 6, and power subsystem 1 powers to whole bracelet.
Signals collecting acceleration transducer includes MPU6050 3-axis acceleration sensor.
Single machine unit includes STC15F2K60S2 singlechip chip.
Power subsystem uses wireless electromagnetic induction mode to charge.
Intelligent bracelet with STC15F2K60S2 single-chip microcomputer as processor.Intelligent bracelet passes through acceleration of gravity gyro sensor MPU-6050 (3 axle gyro sensors and 3 axle acceleration sensors), in conjunction with the APP developed based on Android, by smart bluetooth communication, it is achieved gesture control quiet mobile phone seek, alarm clock state, meter step and the function such as wireless charging.Have that volume is little, low in energy consumption, working stability, accurately, the feature such as man-machine interaction is friendly.
Intelligent bracelet designs for busy working clan, and Intelligent bracelet is worn in main wrist, as watch.The present invention selects acceleration of gravity gyro sensor MPU-6050 3-axis acceleration sensor to gather gesture motion signal.When acceleration transducer perceives the three-dimensional activity of hand, the motor message detected can directly pass through I2C communication interface enters microprocessor.Then communicated with host computer by bluetooth.It is converted to action message, to drive relevant application through Signal Pretreatment, signal resampling, feature extraction and gesture motion.
System have mobile phone seek, the function such as cell phone incoming call, alarm clock on cell phone.Utilize upper computer software, the data collected are processed, it is achieved store and show function in real time.Intelligent bracelet has abandoned traditional button and display function, and all display is on the APP developed based on Android, all controls all to be carried out by the gesture of design.
Bluetooth communication principle: Android mobile phone opens bluetooth, and set up with the bluetooth serial ports module of bracelet and be connected, single-chip microcomputer sends data, bluetooth serial ports receives serial data and is converted to blue-teeth data, Android mobile phone is instructed by reading blue-teeth data, and then mobile phone rings (broadcasting the tinkle of bells) (microcontroller serial port → bluetooth serial ports → Android mobile phone).If bluetooth does not has successful connection, the 24th foot (LED) persistently exports height pulse, and the time is 200ms, utilizes this characteristic, uses red LED and green LED as display reminding respectively.As bluetooth does not connect, red light does not stop flicker, and bluetooth successful connection, then red light goes out and green light.
Linear voltage-stabilizing circuit: power supply input is 5V, and system power supply has only to 3.7V, therefore devises power supply stabilization circuit.Use XC6209 voltage stabilizing chip, through voltage stabilizing, export 3.7V, be suitable for 3.3V single-chip microcomputer and use.
Wireless charging uses way of electromagnetic induction, similar transformator.Being respectively arranged with a coil at transmitting terminal and receiving terminal, transmitting terminal coil connects cable power and produces electromagnetic signal, the electromagnetic signal of receiving coil sensing transmitting terminal, thus produces electric current and charge the phone.Charging interval is as good as with conventional charger.Wireless charging transmitting chip selects the XKT-510 that core section is safe, and wireless charging receives chip and selects T3168, coil 10uH.
Intelligent bracelet has following functions: function sought by quiet mobile phone, and long-range gesture controls alarm clock, intelligence step function, reminds the cruising time of electricity, uses wireless charging technology.
Six data (3-axis acceleration value, the three axis angular rate values) attitude to be changed into of MPU6050 is read by I2C, for reducing amount of calculation, convenient realization in STM32 master control, quaternary number can be converted into and represent.Six data are changed into quaternary number (q0, q1, q2, q3), and then quaternary number changes into Eulerian angles (Pitch, Roll, Yaw angle).Pitch and Roll angle (acceleration can not obtain Yaw angle) can be obtained, that is have two groups of Pitch, Roll angles by acceleration and angular velocity.
Accelerometer and the gyroscope of MPU6050 are respectively arranged with pluses and minuses, and the accekeration of three axles has characteristic steady in a long-term but response speed is slow, does not has cumulative error, can obtain inclination angle by calculating, but the noise comprised is too many, it is impossible to directly use；Gyroscope vibration effect to external world is little, and real-time is fine, and precision is high, can obtain inclination angle by angular velocity integration, but can because drift, temperature drift, the existence of the factor such as non-linear and cumulative error can be gone out by integration, self cannot eliminate.So, it is impossible to it is used alone the accelerometer of MPU6050 or gyroscope to obtain inclination angle, needs complementation.Accelerometer to be passed through carries out angle modification.Will be by gyroscope high pass to suppress low frequency wonder, accelerometer low pass is to suppress noise, and the two carries out certain proportion fusion, is reflected the change of angle more accurately.
Use Quaternion Method complementary filter.Complementary filter algorithm amount of calculation is less, and effect is the most fine in the case of weak coupling.Merging through complementary filter, the data after fusion obtain angle through Dip countion, judge gesture finally by time window.
Gather gesture acceleration signal, carry out action windows detecting, be automatically positioned possible gesture motion sequence, then by smothing filtering and signal window resampling, eliminate gesture motion amplitude and the impact of speed difference.Finally gesture motion is converted to action message, to drive mobile phone jingle bell, time window: minimum 15ms, maximum 85ms, need to train 5 times just can accurately identify, the sampling time is 50MS.
The motion of human body includes three components, it is forward direction, vertical and lateral respectively, as shown in Figure 1, three axles (x-axis, y-axis, z-axis) of sensor just corresponding these three direction, just represent vertical during human body walking, forward direction and the accekeration in lateral 3 directions.During actual application, sensor is in unknown direction, so sensor three-axis measurement value is not corresponding with three components of motion, but the projection value that acceleration of motion is on sensor three axle.
Generally, human body is walked 0.5-2.0 step each second, no more than 5.0 steps.Therefore, rational pedometer is output as 0.5-5.0Hz.Using cut-off frequency is that the FIR low pass filter of 5.0Hz is to filter high-frequency noise.
The mould of three road acceleration signals of acceleration transducer output is sued for peace, obtains the Fast track surgery of human motion.Owing to data can be disturbed by sensor itself and various external noises, needed to be filtered initial data processing before waveform analysis.After making signal pass through the signal that low pass filter filters off 5.0Hz frequencies above, then carry out dynamic threshold judgement by adaptive threshold, and then detect the number of times of human motion.
For motion, step number is an index that can quantify, when characterizing human motion by step number when, the degree of accuracy of step number detection is exactly a criterion of step counting system, because the degree of accuracy of pedometer is the highest, the motion step number detected is the most accurate, more can reflect human motion situation, quantity of motion size and motion liveness.Meter walks definition of accuracy as shown in Equation 1:
Table 1 is to different testees, carries out step number detection test result under different motion form.
By to test result analysis, the accuracy be careful and hurry up reaches about 97%.The accuracy run is slightly decreased, but also greater than 90%.System predetermined meter step degree of accuracy be 95%, reach this degree of accuracy and just meet system requirements.
Use pedometer to different testees, under different motion form, carry out step number detection.Test result finds that the meter step degree of accuracy of this wrist type pedometer, higher than 95%, meets design requirement.
The present invention has mobile phone and seeks function, it is adjusted to silent mode at mobile phone be even switched off under vibrating state, only can make mobile phone jingle bell by simple gesture, bracelet is made to shake, thus reduce the worries of searching mobile phone, remotely gesture controls alarm clock, become more hommization, wake up up with vibrating effect simultaneously, the vibrations of contact effectively wake up you up from sleep soundly, Intelligent bracelet coordinates APP work based on Android exploitation, one characteristic place of APP is exactly voltage acquisition, there is an electricity service condition in the software interface upper left corner, as mobile phone, display device battery electric quantity surplus, prompting user charging.
Table 1 test result
| Test person | True step number | Monitoring step number | Error | Accuracy | |
| It is careful | User A | 100 | 101 | +1 | 99% |
| User B | 100 | 99 | -1 | 99% | |
| User C | 100 | 102 | +2 | 98% | |
| Hurry up | User A | 100 | 105 | +5 | 95% |
| User B | 100 | 103 | +3 | 97% | |
| User C | 100 | 104 | +4 | 96% | |
| Run | User A | 100 | 109 | +9 | 91% |
| User B | 100 | 110 | +10 | 90% | |
| User C | 100 | 105 | +5 | 95% |
Claims (6)
1. seek Intelligent bracelet and the gesture identification method of function with quiet mobile phone, including electricity
Source unit, voltage regulation unit, bluetooth unit, host computer blue tooth interface, single machine unit and
Signals collecting acceleration transducer, it is characterised in that: power subsystem electrical connection voltage regulation unit,
Voltage regulation unit is electrically connected bluetooth unit, single machine unit and signals collecting acceleration and passes
Sensor, bluetooth unit connects host computer blue tooth interface and single machine unit, single-chip microcomputer respectively
Unit electrical connection signals collecting acceleration transducer, power subsystem powers to whole bracelet.
A kind of Intelligent bracelet seeking function with quiet mobile phone the most according to claim 1,
It is characterized in that: described signals collecting acceleration transducer includes that MPU6050 tri-axle adds
Velocity sensor.
A kind of Intelligent bracelet seeking function with quiet mobile phone the most according to claim 1,
It is characterized in that: described single machine unit includes STC15F2K60S2 singlechip chip.
A kind of Intelligent bracelet seeking function with quiet mobile phone the most according to claim 1,
It is characterized in that: described power subsystem uses wireless electromagnetic induction mode to charge.
5. seek a gesture identification method for function Intelligent bracelet with quiet mobile phone, its feature exists
In: algorithm is as follows: read six data (3-axis accelerations of MPU6050 by I2C
Value, three axis angular rate values) attitude to be changed into, for reducing amount of calculation, convenient at STM32
Realize in master control, quaternary number can be converted into and represent；Six data are changed into quaternary number
(q0, q1, q2, q3), then quaternary number changes into Eulerian angles (Pitch, Roll, Yaw
Angle).(acceleration is not can to obtain Pitch and Roll angle by acceleration and angular velocity
Yaw angle can be obtained), that is there are two groups of Pitch, Roll angles.Use Quaternion Method is mutual
Mending filtering, merge through complementary filter, the data after fusion obtain angle through Dip countion
Degree, judges gesture finally by time window, gathers gesture acceleration signal, moves
Make windows detecting, be automatically positioned possible gesture motion sequence, then pass through smothing filtering
And signal window resampling, eliminate gesture motion amplitude and the impact of speed difference,
After gesture motion is converted to action message, to drive mobile phone jingle bell.
6. seek a gesture identification method for function Intelligent bracelet with quiet mobile phone, its feature exists
In: also include step-recording method: the motion of human body includes three components, be respectively forward direction,
Vertical and lateral, three axles (x-axis, y-axis, z-axis) of sensor just corresponding these three
Direction, just represents vertical during human body walking, forward direction and the acceleration in lateral 3 directions
Value, sues for peace to the mould of three road acceleration signals of acceleration transducer output, obtains
The Fast track surgery of human motion, owing to data can be by sensor itself with various external
The interference of noise, needed to be filtered initial data processing before waveform analysis, makes
After signal filters off the signal of 5.0Hz frequencies above by low pass filter, then by adaptive
Answer thresholding to carry out dynamic threshold judgement, and then detect the number of times of human motion.
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| CN201610512277.1A CN106020364A (en) | 2016-06-30 | 2016-06-30 | Smart bracelet with searching function of mute mobile phone and hand gesture recognition method |
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| CN106774889A (en) * | 2016-12-15 | 2017-05-31 | 广州大学 | The gesture identification method and device of wearable device |
| CN108022391A (en) * | 2016-10-31 | 2018-05-11 | 张柏林 | Intelligent alarm method for detecting and device based on MEMS gyroscope |
| CN109463856A (en) * | 2018-12-04 | 2019-03-15 | 珠海格力电器股份有限公司 | Bracelet and its control method, intelligent terminal and its control method |
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