CN106725381A - A kind of intelligent body-building motion bracelet - Google Patents

Abstract

The invention discloses a kind of intelligent body-building motion bracelet, including control module, body-building movement posture module, heart rate acquisition module, charging module and bluetooth communication module, the body-building movement posture module, for detecting body builder's athletic performance；The heart rate acquisition module, for gathering the heart rate data in body builder's motion process；The charging module, for calculating battery electric quantity, and completes to charge for user；The control module, for receive body-building movement posture module and heart rate acquisition module collection data, and to gather data be analyzed, obtain the adaptability of heart rate in the standard and exercise intensity of body builder's athletic performance；The bluetooth communication module, for the analyze data of control module to be transferred into mobile terminal；The mobile terminal, instructs for completing personalized body-building by scientific methods according to analyze data.It is simple structure of the present invention, easy to use, can be to scientific guidance functions such as body builder's realization action judgements, body-building intensive analysis, diet care recommendations.

Description

A kind of intelligent body-building motion bracelet

Technical field

The present invention relates to a kind of Intelligent bracelet, especially a kind of intelligent body-building motion bracelet, belong to body building technology neck Domain.

Background technology

At present, although Intelligent bracelet has become a kind of wearable device very popular on the market, but its major function It is universal single, at home and abroad all without the bracelet in special meaning for body-building by scientific methods.In contemporary society, body-building is one emerging Industry, many people will appreciate that body-building is an investment for huge income, therefore many people are added to the ranks of body-building one after another It is central.However, it is understood that body-building is also a very big knowledge, it is desirable to have the guidance of science can be only achieved preferable effect, no Then only result in the infringement of body and the waste of time energy.Although the theoretical method of body-building is a lot, not necessarily it is adapted to every One people, although gymnasium and fitness are everywhere, but need to pay substantial amounts of money, is not that everyone can hold Receive.

The content of the invention

A kind of defect the invention aims to solve above-mentioned prior art, there is provided intelligent body-building motion bracelet, The Bracelet structure is simple, easy to use, body builder's realization action judgement, body-building intensive analysis, diet care can be recommended etc. Scientific guidance function.

The purpose of the present invention can be reached by adopting the following technical scheme that：

A kind of intelligent body-building motion bracelet, including control module, body-building movement posture module, heart rate acquisition module, charging Module and bluetooth communication module, the body-building movement posture module, heart rate acquisition module, charging module and bluetooth communication module point It is not connected with control module, the control module is communicated by bluetooth communication module with mobile terminal；

The body-building movement posture module, for detecting body builder's athletic performance；

The heart rate acquisition module, for gathering the heart rate data in body builder's motion process；

The charging module, for calculating battery electric quantity, and completes to charge for user；

The control module, the data for receiving body-building movement posture module and the collection of heart rate acquisition module, and to adopting The data of collection are analyzed, and obtain the adaptability of heart rate in the standard and exercise intensity of body builder's athletic performance；

The bluetooth communication module, for the analyze data of control module to be transferred into mobile terminal；

The mobile terminal, instructs for completing personalized body-building by scientific methods according to analyze data.

Further, the control module uses Arduino single-chip microcomputers, and Arduino single-chip microcomputers are based on open source code USB interface plate, core is ATmega168, with 14 railway digital I/O ports, 8 tunnel simulation inputs, a 16MHz crystal Oscillator, mini-B USB interfaces, an ICSP header and a SR.

Further, the body-building movement posture module employs the axle sensor chips of MPU6050 six, the axles of MPU6050 six Sensor chip is used to be gathered by 3 axis MEMS accelerometer and three axis MEMS gyro data during body builder's motion, Each axle of the axle sensor chips of MPU6050 six is respectively to that should have an A/D converter for sixteen bit；When the axles of MPU6050 six are passed When sensor chip is in normal operating conditions, its internal 3 axis MEMS accelerometer and three axis MEMS gyro gather x respectively, The voltage value changes caused by body-building action on the axle of y, z tri-, are changed by A/D, are converted into data signal, are finally passed through again I²C buses transfer data to control module.

Further, the action data on the body-building movement posture module collection axle of body builder six, when trunk vertically and The mean bias of the value of z-axis are when the value of z-axis is vertical with trunk and static during motion：

Wherein, formula (1) give trunk it is vertical and static when z-axis average definition；Formula (2) gives trunk vertically and fortune The mean bias of the value of z-axis when the value and trunk of z-axis are vertical and static when dynamic；J is exercise group number, and t is the time, and N is signal segment Quantity；

Body-building movement posture module reads the angular velocity data in acceleration speed and three directions on three directions, warp After crossing improved Kalman filtering algorithm filtering process, three acceleration information values are combined with three angular velocity data values, and Crest and valley value are calculated using peak valley detection algorithm, when there are a pair of peak valleys, judges whether the difference of peak valley is being set Threshold range in, and time difference between peak valley is judged whether in time window, if the difference of peak valley is in the threshold value for setting Time difference between scope, and peak valley, counting Jia one in time window, and body-building movement posture module stops reading data, no Then, body-building movement posture module continues to read the angular velocity data in the acceleration speed and three directions on three directions；

The improved Kalman filtering algorithm, specially：Assuming that the currency that accelerometer reads is Racc, gyroscope The old value of reading is Rgyro, as follows with a weighted average：

Rest (n)=(Racc*w1+Rgyro*w2)/(w1+w2) (3)

By formula (3) equal sign the right molecule denominator simultaneously divided by w1, it is reduced to：

Rest (n)=(Racc*w1/w1+Rgyro*w2/w1)/(w1/w1+w2/w1) (4)

W2=w1=wGyro is made, is obtained：

Rest (n)=(Racc+Rgyro*wGyro)/(1+wGyro) (5)

Wherein, wGyro represents the degree of faith to accelerometer and gyroscope.

Further, the wGyro is determined by, and scope is 5-20.

Further, the heart rate acquisition module uses heart rate sensor, and heart rate sensor includes red light emitting diodes And light receiving window, the light that red light emitting diodes send is radiated at light receiving window by skin surface, when the CBF of skin surface When heartbeat changes, red light emitting diodes are also changed therewith by the light that skin surface reaches light receiving window, so Also there is fluctuation change in photoelectric current, so as to collect heart pulse signal；Wherein, the chip pin output wave of heart rate sensor Dynamic voltage signal, the inverting input of amplified device amplifies, and the bipolarity coupled capacitor constituted with electric capacity is by interference signal Isolation；High-frequency signal is removed by low pass filter, cut-off frequency is 3.33Hz, by voltage comparator, is converted a signal into Square-wave signal input control module；The reference voltage of voltage comparator is adjusted by potentiometer, to eliminate different human body skin Otherness.

Further, the heart rate data in heart rate acquisition module collection body builder's motion process, using heart rate and fortune The relation that fatigue resistance is directly proportional, calculates the exercise intensity of body builder.

Further, the bluetooth communication module turns serial port module using HC-06 bluetooths, and HC-06 bluetooths turn serial port module Operating voltage be 3.3V, baud rate is adjustable.

Further, the charging module uses TP4056 chargers, and the charging voltage of TP4056 chargers is 4.2V, and Charging current carries out outside setting by resistor；When charging current is down to setting value 1/10 after final float charge voltage is reached When, TP4056 chargers will automatically terminate charging cycle；When input voltage is taken away, TP4056 chargers will be automatically into low Current status, below 2uA is down to by battery leakage current；TP4056 chargers are placed in shutdown mode when there is power supply, so that will be for Electric current is less than 55uA.

Further, the mobile terminal is mounted with application program corresponding with intelligent body-building motion bracelet, and this applies journey The man-machine interaction layer of sequence is made up of main interface, motion details page, the comprehensive analysis page, and number is transmitted using backstage bluetooth service According to while carrying out data storage；

The man-machine interaction layer realizes that the left and right page is quickly cut using the Listview+Viewpager in Android components Change；During application program launching, the historical record data of storage will be read and including on corresponding interface, while main interface requirement The personal relevant information of user input, carries out AMI analyses；

After mobile terminal and intelligent body-building motion bracelet are set up to be connected, set up a special thread Thread to receive Data, using the handler message mechanisms of Android the data is activation for receiving to main thread, so as to carry out main thread UI Renewal realize the real-time analysis and display of data.

The present invention has following beneficial effect relative to prior art：

1st, the present invention is necessary to make scientific guidance and suggestion for the daily exercise activity of body-building personage, dynamic using body-building The module that gestures detects body builder's athletic performance, and using the heart rate number in heart rate sensor collection body builder's motion process According to, and calculating analysis is carried out to data by control module, it is straight that integrated data is transferred into mobile terminal by bluetooth communication module The presentation of sight, to complete the scientific guidance functions such as diet care recommendation.

2nd, body-building action recognition of the invention calculates crest and valley value using peak valley detection algorithm, judge peak valley it Whether whether difference in the threshold range for setting, and judges time difference between peak valley in time window, judge peak valley it Whether the threshold value of middle setting is the test acted to different body-building by multigroup experiment, final point to difference in the threshold range for setting Analysis is calculated and obtained, and when the peak valley difference value of six axle sensors collection meets the threshold value, is represented body builder's movement range and is reached standard It is required that, judge whether the time difference between peak valley is according to the body-building action to tester's difference speed degree in time window Deadline is counted and is obtained, by analysis with the time range for calculating standard operation completion.

3rd, the present invention gathers the acceleration of body builder's limb action using the accelerometer and gyroscope inside six axle sensors Degree and angular velocity data, the swing of body builder's limbs when body-building is carried out can cause shake, and now six axle sensors are gathered Data are not representative, and the data for gathering are filtered by improved Kalman filtering algorithm, can avoid because strong The body person unnecessary data that cause of shake, with reference to the data of accelerometer and gyroscope obtaining inclining between equipment and ground level The accurate information at angle.

4th, the present invention is strong with motion using heart rate using the heart rate data in heart rate sensor collection body builder's motion process The relation that degree is directly proportional, calculates the exercise intensity of body builder, to be controlled to exercise intensity when body builder moves.

5th, the present invention can accurately complete various action recognition analyses, and calculated in data also accurately can quickly transport with transmission OK, experimental results show, can accurately identify analysis body builder's limb action, there is provided body data is accurate, have further Research Significance with value.

Brief description of the drawings

Fig. 1 is the intelligent body-building motion bracelet structured flowchart of the embodiment of the present invention 1.

Fig. 2 is the circuit diagram of the Arduino Nano2.0 of the embodiment of the present invention 1.

Fig. 3 is the axle sensor chip data Acquisition Circuit figures of MPU6050 six of the embodiment of the present invention 1.

Fig. 4 acts algorithm flow chart for the embodiment of the present invention 1 to body-building.

Fig. 5 is the heart rate sensor structured flowchart of prior art.

Fig. 6 is the heart rate sensor chip data Acquisition Circuit figure of the embodiment of the present invention 1.

Fig. 7 is the bluetooth connection circuit diagram of the embodiment of the present invention 1.

Fig. 8 is the circuit diagram of the TP4056 chargers of the embodiment of the present invention 1.

Fig. 9 realizes frame diagram for the APP of the embodiment of the present invention 1.

Specific embodiment

With reference to embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited In this.

Embodiment：

As shown in figure 1, present embodiments providing a kind of intelligent body-building motion bracelet, the intelligent body-building motion bracelet includes control Molding block, body-building movement posture module, heart rate acquisition module, charging module and bluetooth communication module, the body-building movement posture Module, heart rate acquisition module, charging module and bluetooth communication module are connected with control module respectively, and the control module is by indigo plant Tooth communication module is communicated with mobile terminal, intelligent body-building motion bracelet modules and mobile terminal illustrate as Under：

First, control module

The control module uses Arduino single-chip microcomputers, and Arduino single-chip microcomputers are the USB interfaces based on open source code Plate, Arduino Nano2.0 are the miniature versions of Arduino USB interfaces, and maximum is not both no power outlet and USB connects Mouthful be Mini-B type sockets, core is ATmega168, with 14 railway digital I/O ports, 8 tunnel simulation inputs, one 16MHz crystal oscillators, mini-B USB interfaces, an ICSP header and a SR；Arduino The chip size of Nano2.0 versions is very small and can be directly inserted on bread board and uses, and largely reduces intelligence Body-building bracelet volume, and with the IDE IDEs using similar Java, C language, it is illustrated in figure 2 Arduino The circuit diagram of Nano2.0.

2nd, body-building movement posture module

The body-building movement posture module employs the axle sensor cores of MPU6050 six for detecting body builder's athletic performance Piece, the axle sensor chips of MPU6050 six are used to gather body builder's fortune by 3 axis MEMS accelerometer and three axis MEMS gyro Data when dynamic, each axle of the axle sensor chips of MPU6050 six is measured respectively to that should have an A/D converter for sixteen bit Scope reach+16g, highest resolution 3.9mg/LSB can be not measured 1.0 ° of tilt angle varied；It is configured with a piece FIFO (First Input First Output, first in first out) memory of 1024 bytes, helps to reduce system power dissipation, carries For the stand-by time of intelligent body-building bracelet, with the spin matrix of the axle of numeral output 6 or 9 axles, quaternary number, Eulerian angles form fusion Calculation data；When the axle sensor chips of MPU6050 six are in normal operating conditions, its internal 3 axis MEMS accelerometer and Three axis MEMS gyro gathers x respectively, the voltage value changes caused by body-building action on the axle of y, z tri-, is changed by A/D, by it Data signal is converted to, I is finally passed through again²C (Inter-Integrated Circuit) bus transfers data to control mould Block.

Action data on the body-building movement posture module collection axle of body builder six, when trunk is vertical and moves (DL) The value of z-axis is vertical with trunk and mean bias of value of z-axis when static (SL) are：

Wherein, formula (1) give trunk it is vertical and static when z-axis average definition；Formula (2) gives trunk vertically and fortune The mean bias of the value of z-axis when the value and trunk of z-axis are vertical and static when dynamic；J is exercise group number, and t is the time, and N is signal segment Quantity；

Found through the experimental data of multiple test, limbs are produced during human health linear acceleration data and angular acceleration number It is periodic sine wave according to waveform, and body-building action number reaches unanimity with waveform number, has thereby determined that body-building action The core thinking of algorithm；As shown in figure 4, the angular velocity data in the acceleration speed and three directions on three directions is read, After improved Kalman filtering algorithm filtering process, three acceleration information values are combined with three angular velocity data values, And crest and valley value are calculated using peak valley detection algorithm, when there are a pair of peak valleys, carry out following judgement：

1) whether the difference of peak valley is in the threshold range for setting, and code is as follows：

2) whether in time window code is as follows the time difference between peak valley：

Jia one when meeting two above condition and then counting, stop reading data；

The swing of body builder's limbs when body-building is carried out can cause shake, and the data that now six axle sensors are gathered are not It is representative, so in order to avoid the unnecessary data caused by body builder's shake to institute's gathered data, it is necessary to first filter Ripple.

The filtering process of the present embodiment employs improved Kalman filtering algorithm, it is assumed that the currency that accelerometer reads It is Racc, the old value that gyroscope reads is Rgyro, as follows with a weighted average：

Rest (n)=(Racc*w1+Rgyro*w2)/(w1+w2) (3)

By formula (3) equal sign the right molecule denominator simultaneously divided by w1, it is reduced to：

Rest (n)=(Racc*w1/w1+Rgyro*w2/w1)/(w1/w1+w2/w1) (4)

W2=w1=wGyro is made, is obtained：

Rest (n)=(Racc+Rgyro*wGyro)/(1+wGyro) (5)

Wherein, wGyro represents the degree of faith to accelerometer and gyroscope, and the value can be determined by, according to A good result can be obtained between empirical value 5-20；Kalman filtering algorithm X (k)=AX (k-1)+BU is improved herein K the data of ()+W (k), the algorithm combination accelerometer and gyroscope are obtaining the accurate letter at the inclination angle between equipment and ground level Breath, this improved Kalman filtering algorithm and the topmost difference of regular extended Kalman filter are that its weight is to be relatively fixed , and the weight in conventional Kalman filtering can change with the noise of accelerometer reading.Conventional Kalman filtering is focused on The notional result of " best " is calculated, and this innovatory algorithm provides the result of " enough " in actual items.Therefore use The algorithm solves the error caused by shake well.To make data more steady after the filtering is carried out, in being also added into Value filtering method.

Into count judge when, Rule of judgment 1) set by threshold value be by it is multigroup experiment to different body-building action survey Examination, final analytical calculation and obtain；When the peak valley difference value of six axle sensors collection meets the threshold value, body builder's movement range is represented Standard requirement is reached, can now enter next judgement sentence, otherwise, i.e. Rule of judgment 1) it is unsatisfactory for, system is returned again automatically To data collection steps；Rule of judgment 2) it is to be counted according to the body-building action deadline to tester's difference speed degree And obtain, by analysis with the time range for calculating standard operation completion, the time range is the time window of action；It is logical Crossing time window can accurately judge the standard degree of body builder's action, and giving body builder for too fast or excessively slow action warns Show, standard operation recorded, if Rule of judgment 2) it is unsatisfactory for, system comes back to data collection steps automatically.

3rd, heart rate acquisition module

The heart rate acquisition module is used to gather the heart rate data in body builder's motion process, what photoelectricity heart rate measurement was used It is photoplethymograph, its general principle is to cause light transmittance difference in vascular pulsation using tissue to carry out pulses measure , the sensor that it is used is made up of light source and optical-electrical converter two parts, and light source is typically using to oxygen in arterial blood and blood red The light emitting diode of the selective certain wavelength (500nm-700nm) of albumen, shown in its structure chart 5.When light beam passes through human body Peripheral vascular, because arteriopalmus hyperemia volume change causes the light transmittance of this Shu Guang to change, now by optical-electrical converter The light reflected through tissue is received, is changed into electric signal and is amplified and exported by signal amplification circuit.

The heart rate sensor chip circuit that the heart rate acquisition module of the present embodiment is used is as shown in fig. 6, including emitting red light Diode and light receiving window, the light that red light emitting diodes send are radiated at light receiving window by skin surface, when skin surface When heartbeat changes, red light emitting diodes are also changed CBF therewith by the light that skin surface reaches light receiving window Become, such photoelectric current also occurs fluctuation change, so as to collect heart pulse signal；Wherein, the chip of heart rate sensor draws The voltage signal of pin output pulsation, the inverting input of amplified device amplifies, and input is passed to avoid bothering signal, uses electric capacity The bipolarity coupled capacitor of composition isolates interference signal；High-frequency signal is removed by the RC low pass filters of electric capacity and resistance, Cut-off frequency is 3.33Hz, by voltage comparator, converts a signal into square-wave signal input control module；Adjusted by potentiometer The reference voltage of voltage comparator is saved, to eliminate the otherness of different human body skin.

The measure of energy consumption of human body is extremely complex, relevant with many factors, is difficult directly and accurately to determine in practice A kind of energy consumption moved in special time, the heart rate data in heart rate acquisition module collection body builder's motion process, utilizes The relation that heart rate is directly proportional to exercise intensity, calculates the exercise intensity of body builder, Rate control be using maximum cardiac rate and The faster simple principle of the bigger heartbeat of exercise intensity, the method for exercise intensity control when being moved.Worn when your setting in motion Upper heart rate monitor, oneself optimal movement intensity, target cardiac rate=[(220- ages) × 80%- are calculated using maximum heart rate formula 5] beat/min.And exercise heart rate can be directly proportional with exercise intensity, heart rate band can detect electrocardiogram and send signal to heart rate monitor On, heart rate monitor provides user Dang Time heartbeats consulting as exercise intensity control adjustment reference, the most suitable body-building heart of normal population Rate=(200- ages) × (60%-80%), 60%-70% is mainly used in fat reducing, and 70%-80% is mainly used in improving cardiopulmonary work( Energy.

4th, bluetooth communication module

Bluetooth communication module is used to for the analyze data of control module to be transferred to mobile terminal；Mobile terminal and intelligent body-building Communication between motion bracelet uses bluetooth approach, and bluetooth communication module turns serial port module using HC-06 bluetooths, so as to reach substitution The communication of bluetooth can be changed into virtual serial port by the purpose of Serial Port Line, bluetooth serial ports.By after such conversion, using bluetooth Client programs can just operate bluetooth as using serial ports, and by this one or two numerical value for collecting pass to it is mobile eventually End, the operating voltage that HC-06 bluetooths turn serial port module is 3.3V, and baud rate is adjustable, is adjusted to 9600 in the system as needed, Slave mode is set to be matched and communicated with mobile phone；The characteristics of HC-06 has low-power consumption concurrently, electric current is only during pairing It is 30mA, pairing finishes the only 8mA that no matter whether communicates, as shown in fig. 7, being bluetooth connection circuit diagram.

5th, charging module

The charging module is used to calculate battery electric quantity, and is simply charged for user's completion USB；The charging mould of the present embodiment Block uses TP4056 chargers, and it is that a complete single-unit lithium ion battery is linearly charged using constant current/constant voltage Device, the gelled SOP8/MSOP8 encapsulation of its bottom belt causes that TP4056 chargers turn into just with less outer member number Take the ideal chose of formula application, as a result of internal PMOSFET frameworks, add anti-down charging circuit, thus need not it is outside every From diode；The charging voltage of TP4056 chargers is 4.2V, and charging current carries out outside setting by resistor；Work as charging When setting value 1/10 is down to after reaching final float charge voltage, TP4056 chargers will automatically terminate charging cycle to electric current；When When input voltage is taken away, battery leakage current will be down to below 2uA by TP4056 chargers automatically into low current condition； TP4056 chargers are placed in shutdown mode when there is power supply, so as to supply current is less than into 55uA, as shown in figure 8, being TP4056 The circuit diagram of charger.

6th, mobile terminal

Mobile terminal can be smart mobile phone, panel computer, PDA handheld terminals etc.；Mobile terminal is by carrying bluetooth work( Can match and set up with the bluetooth communication module of intelligent body-building motion bracelet and be connected, undertake storage, the analyzing and processing of exercise data With the task of display directly perceived, the individual characteies such as dietary recommendations continued can be completed according to intelligent body-building motion bracelet control module institute analyze data Change body-building by scientific methods to instruct；Mobile terminal is mounted with application program (APP) corresponding with intelligent body-building motion bracelet, and APP's is man-machine Alternation of bed is made up of main interface, motion details page, the comprehensive analysis page, data is transmitted using backstage bluetooth service, while entering Row data storage, whole framework is as shown in Figure 9；

The man-machine interaction layer realizes that the left and right page is quickly cut using the Listview+Viewpager in Android components Change；During application program launching, the historical record data of storage will be read and including on corresponding interface, while main interface requirement The personal relevant information of user input, carries out AMI analyses；Main interface can also control being connected and disconnected from for bluetooth.

After mobile terminal and intelligent body-building motion bracelet are set up to be connected, set up a special thread Thread to receive Data, using the handler message mechanisms of Android the data is activation for receiving to main thread, so as to carry out main thread UI Renewal realize the real-time analysis and display of data；Bluetooth client is by way of iostream with the communication of service end Realize, this secondary design identification data and is obtained by setting the method for flag bit from inlet flow.For example：When reading mark During position " i ", just enter line access and main thread is sent to by SendToTarget () function, and caching is emptied, again Obtain the data in stream.

Information updating main thread UI is transmitted using handler message mechanisms, code is as follows：

Message is received in main thread, code is as follows：

The storage of APP applies the SharedPreferences lightweight storage schemes in Android exploitations, the program It is that editor objects are obtained by edit () method, code is as follows：

Storage data are carried out using key-value key-value pairs.In view of the historical record for needing collection daily, this secondary design By obtaining the system time date of the machine, and using the date as data storage key, therefore the daily data for producing all may be used To be preserved in units of the date, the later stage extracts data and shows by reading key again, and code is as follows：

Date date=new Date (System.currentTimeMillis ())；

Embodiment 2：

The present embodiment is specific experiment test, random in test to have invited six volunteers to participate in test, including Body-building beginner and the veteran body-building intelligent of body-building, it is therefore an objective to simulate the body-building truth of different crowd, make data many Sample, accuracy.Participant completes required movement after intelligent body-building motion bracelet is worn after staff presses beginning With reach predetermined number of times, and by staff's record data, three groups of data of each different motion test reduce counting and miss with this Difference, table 1 below is the test data of experiment of biceps exercise test.

The biceps of table 1 tempers the test data of experiment of test

By data analysis, the motion analysis that can draw the intelligent body-building motion bracelet is more accurate, can missed Completed in difference scope it is correct count, control errors survey body-building action data in error allowed band and are within 2% Acceptable；So integrated data, the movement counting measurement of the intelligent body-building motion bracelet is with certain feasibility.

The above, patent preferred embodiment only of the present invention, but the protection domain of patent of the present invention is not limited to This, any one skilled in the art in the scope disclosed in patent of the present invention, according to the skill of patent of the present invention Art scheme and its inventive concept are subject to equivalent or change, belong to the protection domain of patent of the present invention.

Claims (10)

1. a kind of intelligent body-building motion bracelet, it is characterised in that：Including control module, body-building movement posture module, heart rate collection Module, charging module and bluetooth communication module, the body-building movement posture module, heart rate acquisition module, charging module and bluetooth Communication module is connected with control module respectively, and the control module is communicated by bluetooth communication module with mobile terminal；

The body-building movement posture module, for detecting body builder's athletic performance；

The heart rate acquisition module, for gathering the heart rate data in body builder's motion process；

The charging module, for calculating battery electric quantity, and completes to charge for user；

The control module, the data for receiving body-building movement posture module and the collection of heart rate acquisition module, and to collection Data are analyzed, and obtain the adaptability of heart rate in the standard and exercise intensity of body builder's athletic performance；

The bluetooth communication module, for the analyze data of control module to be transferred into mobile terminal；

The mobile terminal, instructs for completing personalized body-building by scientific methods according to analyze data.

2. a kind of intelligent body-building motion bracelet according to claim 1, it is characterised in that：The control module is used Arduino single-chip microcomputers, Arduino single-chip microcomputers are the USB interface plates based on open source code, and core is ATmega168, with 14 Railway digital I/O port, 8 tunnel simulation inputs, 16MHz crystal oscillators, mini-B USB interfaces, an ICSP Header and SR.

3. a kind of intelligent body-building motion bracelet according to claim 1, it is characterised in that：The body-building movement posture module The axle sensor chips of MPU6050 six are employed, the axle sensor chips of MPU6050 six are used to pass through 3 axis MEMS accelerometer and three Data when axle MEMS gyroscope collection body builder moves, each axle of the axle sensor chips of MPU6050 six is respectively to that should have one The A/D converter of individual sixteen bit；When the axle sensor chips of MPU6050 six are in normal operating conditions, its three internal axle Mems accelerometer and three axis MEMS gyro gather x respectively, the voltage value changes caused by body-building action on the axle of y, z tri-, lead to A/D conversions are crossed, data signal is converted into, I is finally passed through again²C buses transfer data to control module.

4. a kind of intelligent body-building motion bracelet according to claim 3, it is characterised in that：The body-building movement posture module Action data on the collection axle of body builder six, the value of z-axis when the value of z-axis is vertical and static with trunk when trunk is vertical and moves Mean bias be：

${\stackrel{\‾}{Z}}_{sl}=\frac{1}{\underset{J=1}{\overset{Nsl}{\Σ}}{P}_{sl}\left(J\right)}\underset{j=1}{\overset{Nsl}{\Σ}}\·\underset{i=1}{\overset{Psl\left(j\right)}{\Σ}}{Z}_{jt}---\left(1\right)$

$Z_{dl,sl}\left(j\right)=\frac{1}{P_{dl}\left(j\right)}\underset{i=1}{\overset{p_{dl}\left(j\right)}{\Σ}}\left|(Z_{ji}-\stackrel{\‾}{Z_{sl}})\right|---\left(2\right)$

Wherein, formula (1) give trunk it is vertical and static when z-axis average definition；When formula (2) gives trunk vertically and moves The mean bias of the value of z-axis when the value and trunk of z-axis are vertical and static；J is exercise group number, and t is the time, and N is signal segment number；

Body-building movement posture module reads the angular velocity data in acceleration speed and three directions on three directions, by changing After the Kalman filtering algorithm filtering process entered, three acceleration information values are combined with three angular velocity data values, and use Whether peak valley detection algorithm calculates crest and valley value, when there are a pair of peak valleys, judge the difference of peak valley in the threshold for setting In the range of value, and whether time difference between peak valley is judged in time window, if the difference of peak valley is in the threshold range for setting, And the time difference between peak valley is in time window, counting Jia one, and body-building movement posture module stops reading data, otherwise, is good for Body movement posture module continues to read the angular velocity data in the acceleration speed and three directions on three directions；

The improved Kalman filtering algorithm, specially：Assuming that the currency that accelerometer reads is Racc, gyroscope reads Old value be Rgyro, it is as follows with a weighted average：

Rest (n)=(Racc*w1+Rgyro*w2)/(w1+w2) (3)

By formula (3) equal sign the right molecule denominator simultaneously divided by w1, it is reduced to：

Rest (n)=(Racc*w1/w1+Rgyro*w2/w1)/(w1/w1+w2/w1) (4)

W2=w1=wGyro is made, is obtained：

Rest (n)=(Racc+Rgyro*wGyro)/(1+wGyro) (5)

Wherein, wGyro represents the degree of faith to accelerometer and gyroscope.

5. a kind of intelligent body-building motion bracelet according to claim 4, it is characterised in that：The wGyro is true by test Fixed, scope is 5-20.

6. a kind of intelligent body-building motion bracelet according to claim 1, it is characterised in that：The heart rate acquisition module is used Heart rate sensor, heart rate sensor includes red light emitting diodes and light receiving window, and the light that red light emitting diodes send passes through Skin surface is radiated at light receiving window, and when the CBF of skin surface is when heartbeat changes, red light emitting diodes pass through The light that skin surface reaches light receiving window also changes therewith, and such photoelectric current also occurs fluctuation change, so as to collect heart Pulse signal；Wherein, the voltage signal of the chip pin output pulsation of heart rate sensor, the inverting input of amplified device is put Greatly, and with the bipolarity coupled capacitor that electric capacity is constituted interference signal is isolated；High-frequency signal is removed by RC low pass filters, is cut Only frequency is 3.33Hz, by voltage comparator, converts a signal into square-wave signal input control module；Adjusted by potentiometer The reference voltage of voltage comparator, to eliminate the otherness of different human body skin.

7. a kind of intelligent body-building motion bracelet according to claim 1, it is characterised in that：The heart rate acquisition module collection Heart rate data in body builder's motion process, the relation being directly proportional to exercise intensity using heart rate calculates the motion of body builder Intensity.

8. a kind of intelligent body-building motion bracelet according to claim 1, it is characterised in that：The bluetooth communication module is used HC-06 bluetooths turn serial port module, and the operating voltage that HC-06 bluetooths turn serial port module is 3.3V, and baud rate is adjustable.

9. a kind of intelligent body-building motion bracelet according to claim 1, it is characterised in that：The charging module is used TP4056 chargers, the charging voltage of TP4056 chargers is 4.2V, and charging current carries out outside setting by resistor；When When setting value 1/10 is down to after reaching final float charge voltage, TP4056 chargers follow automatic termination charging to charging current Ring；When input voltage is taken away, TP4056 chargers will automatically into low current condition, by battery leakage current be down to 2uA with Under；TP4056 chargers are placed in shutdown mode when there is power supply, so as to supply current is less than into 55uA.

10. a kind of intelligent body-building motion bracelet according to claim any one of 1-9, it is characterised in that：It is described mobile whole End is mounted with application program corresponding with intelligent body-building motion bracelet, and the man-machine interaction layer of the application program is by main interface, motion Details page, the comprehensive analysis page are constituted, and data are transmitted using backstage bluetooth service, while carrying out data storage；

The man-machine interaction layer realizes that the left and right page is switched fast using the Listview+Viewpager in Android components； During application program launching, the historical record data of storage will be read and including on corresponding interface, while main interface requirement is used The personal relevant information of family input, carries out AMI analyses；

After mobile terminal and intelligent body-building motion bracelet are set up to be connected, set up a special thread Thread to receive number According to using the handler message mechanisms of Android the data is activation for receiving to main thread, so as to carry out main thread UI's The real-time analysis and display of data are realized in renewal.