CN106422259B - A kind of Intelligent football training system - Google Patents
A kind of Intelligent football training system Download PDFInfo
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- CN106422259B CN106422259B CN201611029449.6A CN201611029449A CN106422259B CN 106422259 B CN106422259 B CN 106422259B CN 201611029449 A CN201611029449 A CN 201611029449A CN 106422259 B CN106422259 B CN 106422259B
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Classifications
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B69/00—Training appliances or apparatus for special sports
- A63B69/002—Training appliances or apparatus for special sports for football
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B24/00—Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
- A63B24/0003—Analysing the course of a movement or motion sequences during an exercise or trainings sequence, e.g. swing for golf or tennis
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B24/00—Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
- A63B24/0087—Electric or electronic controls for exercising apparatus of groups A63B21/00 - A63B23/00, e.g. controlling load
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B63/00—Targets or goals for ball games
- A63B63/004—Goals of the type used for football, handball, hockey or the like
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
The invention discloses a kind of Intelligent football training systems, including football training field frame roof described in football training field frame, gathered data controller, external equipment and singlechip controller to be installed with fixed plate；The bottom of the fixed plate is installed with protection network；The bottom of protection network is provided with accumulator tank；Gathered data controller is made of heart rate sensor, velocity sensor and acceleration transducer；The input terminal of external equipment is connected by internet and the output end of radio frequency transceiving module；The input terminal of singlechip controller is electrically connected with the output end of light intensity sensor, service counting device and power supply module respectively；The output end of singlechip controller is electrically connected with the input terminal of foot ball launching machine, loud speaker, camera, the first headlamp, the second headlamp, third headlamp and LED flashing lamps respectively.Intelligence degree of the present invention is high, and body kinematics parameter and training are combined together.
Description
Technical field
The invention belongs to football training technical field more particularly to a kind of Intelligent football training systems.
Background technology
Football training system on the market at present carries out transmitting football by foot ball launching machine, but football is by foot
The foot of ball trainer hits frame after kicking, and can then rebound, the football after rebounding not necessarily can all be rolled into accumulator tank
In so that the football that is scattered in court influences the training of trainer, the lighting effects of another aspect football training field cannot and
When open or close, certain worry is brought to football training person.
For intellectualized sensor, the information processing function of sensor is to determine the weight of its final function and performance
Want factor.At present for the signal acquisition of sensor, sensor is often individually present, and needs externally fed or simple process
After could work, under practical application, independent signal acquisition system can not consider the factors such as sensor power supply, therefore generally require needle
The externally fed mode different to different Sensor Designs.The output signal of sensor often joins with environmental correclation simultaneously, no
With under environment, the output performance of sensor is inconsistent, can also lead to the inconsistent of signal processing.Therefore, it can establish and be closed with environment
The signal acquiring processing system of connection property becomes the sharp weapon for carrying out sensor signal analysis.
Pulse transducer in traditional heart rate sensor cannot detect pulse signal well.
In conclusion existing football training system cannot be by the human parameters of football training person in the training process and foot
Ball training is combined together, and intelligence degree is low, cause preferably to analyze each football training person fitness and
Kinematic parameter.
Invention content
The present invention is the human parameters for solving existing football training system cannot be by football training person in the training process
It is combined together with football training, intelligence degree is low, leads to the body element that cannot preferably analyze each football training person
The technical issues of matter and kinematic parameter and a kind of Intelligent football training system is provided.
The present invention is adopted the technical scheme that solve technical problem present in known technology：A kind of Intelligent football instruction
Practice system, including football training field frame, gathered data controller, external equipment and singlechip controller, the football training
Field frame roof is installed with fixed plate；The bottom of the fixed plate is installed with protection network；
Multiple foot ball launching machines are installed in space between football training field frame and protection network；It is described anti-
The bottom of protecting wire net is provided with accumulator tank；Be set gradually from left to right at the top of the frame of the football training field first support bar,
Second support bar and third supporting rod；The bottom centre position of the first support bar is installed with light intensity sensor；It is described
The bottom centre position of second support bar is installed with loud speaker；The bottom centre position of the third supporting rod is fixedly mounted
There is camera；
The bottom of the first support bar is installed with multiple first headlamps, and the setting of the first headlamp is passed in light intensity
The both sides of sensor；The bottom of the second support bar is installed with multiple second headlamps, and the setting of the second headlamp is being raised
The both sides of sound device；The bottom of the third supporting rod is installed with multiple third headlamps, and the setting of third headlamp is being taken the photograph
As the both sides of head；It is installed with service counting device at the top of the foot ball launching machine, and foot ball launching machine front end face
Marginal position is installed with multiple LED flashing lamps；The gathered data controller is by heart rate sensor, velocity sensor and adds
Velocity sensor is constituted；
The output end of the gathered data controller is connected by LAN and the input terminal of radio frequency transceiving module；Institute
The input terminal for stating external equipment is connected by internet and the output end of radio frequency transceiving module；The singlechip controller
Input terminal is electrically connected with the output end of light intensity sensor, service counting device and power supply module respectively；
The output end of the singlechip controller respectively with foot ball launching machine, loud speaker, camera, the first headlamp,
The input terminal of two headlamps, third headlamp and LED flashing lamps is electrically connected；The singlechip controller respectively with less radio-frequency
Transceiver module, database and data processing module are electrically connected.
Further, football gate, and the outside setting of football gate are both provided at left and right sides of the frame of the football training field
There is goal net.
Further, the accumulator tank is arranged in ground, and the upper plane of accumulator tank is put down with the lower of football training field frame
Face is in same level.
Further, the both ends of the first support bar, second support bar and third supporting rod respectively be fixed on football instruction
On the front and rear sides for practicing field frame roof.
Further, the camera is specially 360 ° of fish-eye cameras.
Further, first headlamp, the second headlamp and third headlamp are specially LED illumination lamp.
Further, the LED flashing lamps are specially red LED flashing lamp.
Further, the gathered data controller is arranged in the wrist of football player.
Further, the external equipment includes the electronic product for having network connecting function.
Further, the gathered data controller further includes power module, sensor access conversion module and signal acquisition
Module；
The sensor access port that the power module accesses conversion module for sensor provides voltage, the access modulus of conversion
The sensor access port of block is used to access the heart rate sensor, velocity sensor and acceleration transducer of different voltages；
The sensor access conversion module is used to access heart rate sensor, velocity sensor and acceleration transducer, and
Receive heart rate sensor, velocity sensor and acceleration transducer detection signal, realize heart rate sensor, velocity sensor and
Acceleration transducer detects signal access function；
The signal acquisition module is used to convert the analog detection signal that sensor access conversion module receives
To be transferred to radio frequency transceiving module after digital signal, heart rate sensor, velocity sensor and acceleration transducer inspection are realized
The acquisition of measured data；
The digital data transmission that the radio frequency transceiving module transmits signal acquisition module is to singlechip controller；Institute
It states singlechip controller and receives the signal of radio frequency transceiving module, and store, show and handle collected data, realize number
According to heart rate sensor, the record of velocity sensor and acceleration transducer detection data；
The singlechip controller is additionally operable to recorded heart rate sensor, velocity sensor and acceleration transducer detection data
When the environment at moment occurs and the recorded heart rate sensor, velocity sensor and acceleration transducer detection data of record occurring
The environment at quarter is associated with sensing data.
Further, the sensor access port includes digital interface and analog interface；The digital interface is logical by number
Road is converted to USB interface or network interface；The analog interface is connected by analog channel with the signal acquisition module；
Sensor access conversion module by the selecting switch selection that is controlled by singlechip controller all the way or a few roads
Signal is connected；The signal acquisition module is connected by USB interface with the radio frequency transceiving module；The gathered data control
Device processed further includes simulation playback module；The simulation playback module is connected with radio frequency transceiving module by USB interface；It is described
Singlechip controller computer transfers data to simulation playback module by radio frequency transceiving module, USB interface, confirms back
Clock is put, digital signal is switched into analog signal by the playback clock, and be filtered to the analog signal, simulation is true
Real analog signal realizes the playback of heart rate sensor, velocity sensor and acceleration transducer detection data.
Further, the heart rate sensor includes using pulse transducer, the pulse transducer：
Several piezoelectric film sensors, several piezoelectric film sensors are to be sensed with the pvdf membrane that array arranges
Device, for the pressure signal of pulse to be converted to voltage signal；
Several piezoelectric film sensors include several groups pvdf membrane array, and each group of pvdf membrane array includes lateral 4
A × longitudinal 4 totally ten six pvdf membrane sensors；
The pvdf membrane sensor is 2.8mm × 2.8mm single-point PVDF piezoelectric film sensors, each single-point PVDF piezoelectricity
Distance is less than 0.8mm between thin film sensor.
Further, the pulse transducer further includes signal processing unit, and the signal processing unit includes：
Front linear charge amplifier, for the impedance matching with the energy converter of the piezoelectric film sensor, high resistant
Anti- input is converted to low-impedance voltage output, and faint sensing signal is converted into voltage signal and is amplified；
Noise reduction unit, the voltage signal for being exported to the front linear charge amplifier carry out noise reduction process；It is described
Noise reduction unit includes filter circuit, and the filter circuit is by second-order filter structure composition：
Low-pass filter circuit is made of R1 and C1, upper cut-off frequency 1100Hz, so that the higher hamonic wave of pulse signal
Pass through, the pulse characteristics information of signal reflection is completely retained；
Low-pass filter, for filtering out High-frequency Interference；
The noise reduction unit further includes that the reference electrode of a contact skin is arranged, and reference electrode is connected simulation ground, with
Effectively eliminate conventional Hz noise；
The signal processing unit further includes a processor, and the processor is considered as one by 256 obtained data are measured
Queue often carries out primary new measurement, measurement result is just put into tail of the queue, and rejects a data of original head of the queue；To described
256 data compare size one by one, remove maximum value and minimum value therein, then calculate the average value of 254 data.
Further, the signal acquisition method of signal acquisition module includes：
First, echo signal x (t) is acquired within the independent sampling period with awareness apparatus, A/D modes pair is used in combination
Signal carries out digital quantization；Then, dimensionality reduction is carried out to the signal x (i) after quantization；Finally, the signal after dimensionality reduction is reconstructed；
Wherein t is sampling instant, and i is the signal sequence after quantization.
Further, dimensionality reduction is carried out to the signal after quantization, specifically the signal after quantization is filtered by finite impulse response (FIR)
The difference equation of wave deviceI=1 ..., M, wherein h (0) ..., h (L-1) they are filter coefficient, if
The compressed sensing signal acquisition frame based on filtering is counted, following Teoplitz calculation matrix is constructed：
Then observeI=1 ..., M, wherein b1,…,bLRegard filter coefficient as；Submatrix ΦFT
Singular value be gram matrix G (ΦF, T) and=Φ 'FTΦFTThe arithmetic root of characteristic value, all eigenvalue λs of verification G (Φ F, T)
i∈(1-δK,1+δK), i=1 ..., T, then ΦFMeet RIP, and former letter is reconstructed by solving following formula optimization problem
Number：
Original signal, that is, BP algorithm are reconstructed by linear programming method；
For actual compression signal Φ is then changed such as the acquisition of pulse pressure signalFFor following form：
If signal has sparsity on transformation basic matrix Ψ, by solving following formula optimization problem, accurately
Reconstruct original signal：
Wherein Φ is uncorrelated to Ψ, and Ξ is known as CS matrixes.
The invention has the advantages and positive effects that：The Intelligent football training system, by the way that protection network is arranged so that by
Football after power can smoothly enter into accumulator tank, be provided with light intensity sensor, can lead to when extraneous intensity of illumination is inadequate
It crosses singlechip controller to open the first headlamp, the second headlamp and third headlamp, ensures that intensity of illumination meets training and wants
It asks；Gathered data controller is made of heart rate sensor, velocity sensor and acceleration transducer, and gathered data controller is worn
In the wrist of football player, the fitness and kinematic parameter of football player are effectively detected, data processing module is passed through
Analyzing processing is carried out to the parameter detected, and parameter is compared, sampled and inquired using database, preferably to football
Sportsman is targetedly trained.
The present invention can acquire and store sensor data carries out sensor signal analysis for singlechip controller and provides
It is convenient, and the data that can be acquired under various circumstances, simulation actual signal can be provided by playback function.
The present invention provides the Integrated Development Environment acquired to sensor information, gathered data controller is believed with sensor
Breath acquisition, writing function, wherein Signals collecting function provide multiple sensors interface, voltage needed for work are provided for sensor
To ensure its normal work, digital sensor signal can be reached singlechip controller, offer and ring on singlechip controller
The associated signal storage in border, and carry out signal processing and show, wherein playback function can acquire the sensor stored in sample database
Data are played back with sampling clock, analog sensor signal source, and exploitation Modulated Reference is provided for miscellaneous equipment.
The heart rate sensor part of the present invention is PVDF (polyvinylidene fluoride) piezoelectric membrane, why selects PVDF piezoelectricity
Film, because it has following several advantages：1. piezoelectric constant is big (d33=20pC/N), variable force response sensitivity is high, compares quartz-crystal
Body is 10 times high, and piezoelectric voltage output constant g=174 is highest in all piezoelectrics；It is unlikely in very high alternating electric field
In depolarising, unit volume can obtain big output power, because energy converter unit volume peak power output is proportional to electromechanics
Square of the coefficient of coup and the maximum field intensity that can be born；2. film is light and flexible, easily prepared, the impedance coupling with tissue
Conjunction property is good, can be close to skin so that pulse signal is undistorted by film；It is similar to human skin additionally, due to film, it can
To make biomimetic tactile sensor；3. mechanical quality factor is low, damping is small, and density is low, has broadband character, can meet pulse letter
Number frequency characteristic；The pulse frequency of human body is very low, about 0.5~4Hz, is under normal circumstances 1Hz or so；Due to pvdf membrane
Flexibility and its thickness direction stretching vibration resonant frequency it is very high so that have in wide range flat frequency response (ring
It is 0.1~110MHz to answer range).Therefore, theoretically, PVDF energy converters can detect the pulse signal of faint low frequency；
The thin film sensor of the present invention is by multiple 2.8*2.8mm2Square PVDF energy converters arranged at array, often
Distance is less than 0.8mm between a dot matrix, and this structure can ensure to collect the information of three positions of cun,guan,chi completely, avoid
Conventional pulse wave sensor needs cumbersome manual adjustment, determines cun,guan,chi using algorithm, can more accurately position,
Eliminate artificial error；PVDF piezoelectric transducers are fixed using silica gel packaging, and are fixed in wrist type air cuff；
The high impedance input of the charge amplifying circuit of the present invention can be very good to capture the faint electricity of PVDF thin film generation
Lotus；Conventional power frequency component can be effectively eliminated with reference to ground electrode by introducing on the skin, significantly simplify circuit, realize electricity
Road Miniaturization Design.
The signal acquisition method of the present invention, enhances the range to signal collection；Improve data protection safety and standard
True property.
Description of the drawings
Fig. 1 is Intelligent football training system structural schematic diagram provided in an embodiment of the present invention.
Fig. 2 is football training system vertical view provided in an embodiment of the present invention.
Fig. 3 is football training exterior structural schematic diagram provided in an embodiment of the present invention.
Fig. 4 is football training system principle diagram provided in an embodiment of the present invention.
Fig. 5 is that sensor provided in an embodiment of the present invention accesses conversion module connection diagram.
In figure：1, football training field frame；2, football gate；3, goal net；4, fixed plate；5, protection network；6, football emits
Machine；7, accumulator tank；8, first support bar；9, second support bar；10, third supporting rod；11, light intensity sensor；12, loud speaker；
13, camera；14, the first headlamp；15, the second headlamp；16, third headlamp；17, service counting device；18, LED dodges
Bright lamp；19, gathered data controller；19-1, power module；19-2, sensor access conversion module；19-3, signal acquisition mould
Block；19-4, sensor access port；19-4-1, digital interface；19-4-2, analog interface；19-5, selecting switch；19-6, simulation
Playback module；20, heart rate sensor；21, velocity sensor；22, acceleration transducer；23, LAN；24, less radio-frequency is received
Send out module；25, external equipment；26, internet；27, singlechip controller；28, power supply module；29, database；30, at data
Manage module.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
The application principle of the present invention is described in detail below in conjunction with the accompanying drawings.
As shown in Figures 1 to 4, Intelligent football training system provided in an embodiment of the present invention, including football training field frame
1, gathered data controller 19, external equipment 25 and singlechip controller 27, football training field frame roof are fixedly mounted
There is fixed plate 4；The bottom of the fixed plate is installed with protection network 5；Between football training field frame and protection network
Multiple foot ball launching machines 6 are installed in space；
The bottom of the protection network is provided with accumulator tank；It is set gradually from left to right at the top of the frame of the football training field
There are first support bar 8, second support bar 9 and third supporting rod 10；The bottom centre position of the first support bar is fixedly mounted
There is light intensity sensor 11；The bottom centre position of the second support bar is installed with loud speaker 12；The third supporting rod
Bottom centre position be installed with camera 13；The bottom of the first support bar is installed with multiple first headlamps
14, and the first headlamp is arranged in the both sides of light intensity sensor；The bottom of the second support bar is installed with multiple second
Headlamp 15, and the second headlamp is arranged in the both sides of loud speaker；
The bottom of the third supporting rod is installed with multiple third headlamps 16, and the setting of third headlamp is imaging
The both sides of head；Service counting device 17, and foot ball launching machine front end face are installed at the top of the foot ball launching machine
Marginal position is installed with multiple LED flashing lamps 18；The gathered data controller is by heart rate sensor 20, velocity sensor
21 and acceleration transducer 22 constitute；
The output end of the gathered data controller is connected by LAN 23 and the input terminal of radio frequency transceiving module 24
It connects；The input terminal of the external equipment is connect by internet 26 with the output end of radio frequency transceiving module；The microcontroller
The input terminal of controller is electrically connected with the output end of light intensity sensor, service counting device and power supply module 28 respectively；
The output end of the singlechip controller respectively with foot ball launching machine, loud speaker, camera, the first headlamp,
The input terminal of two headlamps, third headlamp and LED flashing lamps is electrically connected；The singlechip controller respectively with less radio-frequency
Transceiver module, database 29 and data processing module 30 are electrically connected.
Further, football gate 2, and the outside setting of football gate are both provided at left and right sides of the frame of the football training field
There is goal net 3.
Further, the accumulator tank 7 is arranged in ground, and the upper plane of accumulator tank is put down with the lower of football training field frame
Face is in same level.
Further, the both ends of the first support bar, second support bar and third supporting rod respectively be fixed on football instruction
On the front and rear sides for practicing field frame roof.
Further, the camera is specially 360 ° of fish-eye cameras.
Further, first headlamp, the second headlamp and third headlamp are specially LED illumination lamp.
Further, the LED flashing lamps are specially red LED flashing lamp.
Further, the gathered data controller is arranged in the wrist of football player.
Further, the external equipment includes the electronic product for having network connecting function.
As shown in figure 5, the gathered data controller further includes power module 19-1, sensor access conversion module 19-2
With signal acquisition module 19-3；
The sensor access port that the power module accesses conversion module for sensor provides voltage, the access modulus of conversion
The sensor access port 19-4 of block is used to access the heart rate sensor, velocity sensor and acceleration transducer of different voltages；
The sensor access conversion module is used to access heart rate sensor, velocity sensor and acceleration transducer, and
Receive heart rate sensor, velocity sensor and acceleration transducer detection signal, realize heart rate sensor, velocity sensor and
Acceleration transducer detects signal access function；
The signal acquisition module is used to convert the analog detection signal that sensor access conversion module receives
To be transferred to radio frequency transceiving module after digital signal, heart rate sensor, velocity sensor and acceleration transducer inspection are realized
The acquisition of measured data；
The digital data transmission that the radio frequency transceiving module transmits signal acquisition module is to singlechip controller；Institute
It states singlechip controller and receives the signal of radio frequency transceiving module, and store, show and handle collected data, realize number
According to heart rate sensor, the record of velocity sensor and acceleration transducer detection data；
The singlechip controller is additionally operable to recorded heart rate sensor, velocity sensor and acceleration transducer detection data
When the environment at moment occurs and the recorded heart rate sensor, velocity sensor and acceleration transducer detection data of record occurring
The environment at quarter is associated with sensing data.
Further, the sensor access port includes digital interface 19-4-1 and analog interface 19-4-2；The number connects
Mouth is converted to USB interface or network interface by digital channel；The analog interface passes through analog channel and the signal acquisition module
It is connected；
Sensor access conversion module by the selecting switch 19-5 selections that are controlled by singlechip controller all the way or
Several signals are connected；The signal acquisition module is connected by USB interface with the radio frequency transceiving module；The acquisition number
Further include simulation playback module 19-6 according to controller；The simulation playback module passes through USB interface with radio frequency transceiving module
It is connected；The singlechip controller computer transfers data to simulation playback mould by radio frequency transceiving module, USB interface
Block confirms playback clock, digital signal is switched to analog signal by the playback clock, and be filtered place to the analog signal
Reason simulates real simulation signal, realizes the playback of heart rate sensor, velocity sensor and acceleration transducer detection data.
Further, the heart rate sensor includes using pulse transducer, the pulse transducer：
Several piezoelectric film sensors, several piezoelectric film sensors are to be sensed with the pvdf membrane that array arranges
Device, for the pressure signal of pulse to be converted to voltage signal；
Several piezoelectric film sensors include several groups pvdf membrane array, and each group of pvdf membrane array includes lateral 4
A × longitudinal 4 totally ten six pvdf membrane sensors；
The pvdf membrane sensor is 2.8mm × 2.8mm single-point PVDF piezoelectric film sensors, each single-point PVDF piezoelectricity
Distance is less than 0.8mm between thin film sensor.
Further, the pulse transducer further includes signal processing unit, and the signal processing unit includes：
Front linear charge amplifier, for the impedance matching with the energy converter of the piezoelectric film sensor, high resistant
Anti- input is converted to low-impedance voltage output, and faint sensing signal is converted into voltage signal and is amplified；
Noise reduction unit, the voltage signal for being exported to the front linear charge amplifier carry out noise reduction process；It is described
Noise reduction unit includes filter circuit, and the filter circuit is by second-order filter structure composition：
Low-pass filter circuit is made of R1 and C1, upper cut-off frequency 1100Hz, so that the higher hamonic wave of pulse signal
Pass through, the pulse characteristics information of signal reflection is completely retained；
Low-pass filter, for filtering out High-frequency Interference；
The noise reduction unit further includes that the reference electrode of a contact skin is arranged, and reference electrode is connected simulation ground, with
Effectively eliminate conventional Hz noise；
The signal processing unit further includes a processor, and the processor is considered as one by 256 obtained data are measured
Queue often carries out primary new measurement, measurement result is just put into tail of the queue, and rejects a data of original head of the queue；To described
256 data compare size one by one, remove maximum value and minimum value therein, then calculate the average value of 254 data.
Further, the signal acquisition method of signal acquisition module includes：
First, echo signal x (t) is acquired within the independent sampling period with awareness apparatus, A/D modes pair is used in combination
Signal carries out digital quantization；Then, dimensionality reduction is carried out to the signal x (i) after quantization；Finally, the signal after dimensionality reduction is reconstructed；
Wherein t is sampling instant, and i is the signal sequence after quantization.
Further, dimensionality reduction is carried out to the signal after quantization, specifically the signal after quantization is filtered by finite impulse response (FIR)
The difference equation of wave deviceI=1 ..., M, wherein h (0) ..., h (L-1) they are filter coefficient, if
The compressed sensing signal acquisition frame based on filtering is counted, following Teoplitz calculation matrix is constructed：
Then observeI=1 ..., M, wherein b1,…,bLRegard filter coefficient as；Submatrix ΦFT
Singular value be gram matrix G (ΦF, T) and=Φ 'FTΦFTThe arithmetic root of characteristic value, all eigenvalue λs of verification G (Φ F, T)
i∈(1-δK,1+δK), i=1 ..., T, then ΦFMeet RIP, and former letter is reconstructed by solving following formula optimization problem
Number：
Original signal, that is, BP algorithm are reconstructed by linear programming method；
For actual compression signal Φ is then changed such as the acquisition of pulse pressure signalFFor following form：
If signal has sparsity on transformation basic matrix Ψ, by solving following formula optimization problem, accurately
Reconstruct original signal：
Wherein Φ is uncorrelated to Ψ, and Ξ is known as CS matrixes.
The application of the present invention is further described with reference to operation principle.
The singlechip controller control foot ball launching machine of the present invention launches football, and football training person is to different directions
The football of transmitting kick penetrating, and to trainer effectively train, kicks the football after penetrating and all rolled down to back by protection network
It receives in slot, loud speaker sends out voice notification, informs which Table foot ball game transmitter transmitting football of trainer, the hair on foot ball launching machine
Ball count device can count football number, while setting can effectively prompt to instruct in LED flashing lamps on front side of foot ball launching machine
White silk person, when light intensity sensor, which detects extraneous intensity of illumination, can not meet training court and require, singlechip controller can control the
The opening of one headlamp, the second headlamp and third illumination, gathered data controller is by heart rate sensor, velocity sensor and adds
Velocity sensor is constituted, and by the wrist of the gathered data controller person that is worn over football training, effectively detects the body of football training person
Voxel matter and kinematic parameter, radio frequency transceiving module for receive and and transmitting wireless network signal, gathered data controller
The parameter of detection is sent to by LAN and radio frequency transceiving module in singlechip controller, singlechip controller passes through
Data processing module carries out analyzing processing to the parameter detected, and parameter is compared, samples and is inquired using database,
Preferably football training person is targetedly trained, while singlechip controller utilizes radio frequency transceiving module and interconnection
By detection parameters, parameter is sent in external equipment net with treated.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (8)
1. a kind of Intelligent football training system, which is characterized in that the Intelligent football training system include football training field frame,
Gathered data controller, external equipment and singlechip controller；Football training field frame roof is installed with fixed plate；
The bottom of the fixed plate is installed with protection network；Fixed peace in space between football training field frame and protection network
Equipped with multiple foot ball launching machines；The bottom of the protection network is provided with accumulator tank；The top of football training field frame is from a left side
It is disposed with first support bar, second support bar and third supporting rod to the right side；The bottom centre position of the first support bar
It is installed with light intensity sensor；The bottom centre position of the second support bar is installed with loud speaker；The third branch
The bottom centre position of strut is installed with camera；
The bottom of the first support bar is installed with multiple first headlamps, and the first headlamp is arranged in light intensity sensor
Both sides；The bottom of the second support bar is installed with multiple second headlamps, and the second headlamp is arranged in loud speaker
Both sides；The bottom of the third supporting rod is installed with multiple third headlamps, and third headlamp is arranged in camera
Both sides；Service counting device, and the margin location of foot ball launching machine front end face are installed at the top of the foot ball launching machine
It sets and is installed with multiple LED flashing lamps；The output end of the gathered data controller passes through LAN and radio transceiver
The input terminal of module connects；
The input terminal of the external equipment is connected by internet and the output end of radio frequency transceiving module；The microcontroller control
The input terminal of device processed is electrically connected with the output end of light intensity sensor, service counting device and power supply module respectively；The monolithic
The output end of machine controller is illuminated with foot ball launching machine, loud speaker, camera, the first headlamp, the second headlamp, third respectively
The input terminal of lamp and LED flashing lamps is electrically connected；The singlechip controller respectively with radio frequency transceiving module, database and
Data processing module is electrically connected.
2. Intelligent football training system as described in claim 1, which is characterized in that the left and right two of football training field frame
Side is both provided with football gate, and goal net is provided on the outside of football gate；The accumulator tank is arranged in ground, and accumulator tank
Upper plane and the lower plane of football training field frame are in same level；
The both ends of the first support bar, second support bar and third supporting rod are separately fixed at football training field frame roof
On front and rear sides；
The camera is specially 360 ° of fish-eye cameras；
First headlamp, the second headlamp and third headlamp are specially LED illumination lamp；
The LED flashing lamps are specially red LED flashing lamp；
The gathered data controller is arranged in the wrist of football player；The gathered data controller includes sensing heart rate
Device, velocity sensor and acceleration transducer；The output end of the heart rate sensor, velocity sensor and acceleration transducer is equal
It is connected by LAN and the input terminal of radio frequency transceiving module；
The external equipment includes the electronic product for having network connecting function.
3. Intelligent football training system as claimed in claim 2, which is characterized in that the gathered data controller further includes electricity
Source module, sensor access conversion module and signal acquisition module；
The sensor access port that the power module accesses conversion module for sensor provides voltage, the access conversion module
Sensor access port is used to access the heart rate sensor, velocity sensor and acceleration transducer of different voltages；
The sensor access conversion module is received for accessing heart rate sensor, velocity sensor and acceleration transducer
The detection signal of heart rate sensor, velocity sensor and acceleration transducer realizes heart rate sensor, velocity sensor and acceleration
Spend sensor detection signal access function；
The signal acquisition module is used to the analog detection signal that sensor access conversion module receives being converted to number
It is transferred to radio frequency transceiving module after word signal, realizes heart rate sensor, velocity sensor and acceleration transducer testing number
According to acquisition；
The digital data transmission that the radio frequency transceiving module transmits signal acquisition module is to singlechip controller；The list
Piece machine controller receives the signal of radio frequency transceiving module, and stores, shows and handle collected data, realizes the data heart
The record of rate sensor, velocity sensor and acceleration transducer detection data；
The singlechip controller is additionally operable to recorded heart rate sensor, velocity sensor and acceleration transducer detection data and occurs
The environment at moment and the environment that the heart rate sensor of record, velocity sensor and acceleration transducer detection data to that the moment occur
It is associated with detection data.
4. Intelligent football training system as claimed in claim 3, which is characterized in that the sensor access port connects including number
Mouth and analog interface；The digital interface is converted to USB interface or network interface by digital channel；The analog interface passes through simulation
Channel is connected with the signal acquisition module；
Sensor access conversion module by the selecting switch selection that is controlled by singlechip controller all the way or several signals
It connects；The signal acquisition module is connected by USB interface with the radio frequency transceiving module；The gathered data controller
It further include simulation playback module；The simulation playback module is connected with radio frequency transceiving module by USB interface；The monolithic
Machine controller transfers data to simulation playback module by radio frequency transceiving module, USB interface, confirms playback clock, presses
Digital signal is switched to analog signal by the playback clock, and is filtered to the analog signal, simulation real simulation letter
Number, realize the playback of heart rate sensor, velocity sensor and acceleration transducer detection data.
5. Intelligent football training system as claimed in claim 2, which is characterized in that the heart rate sensor is sensed using pulse
Device, the pulse transducer include：
Several piezoelectric film sensors, several piezoelectric film sensors are the pvdf membrane sensor arranged with array, are used
In the pressure signal of pulse is converted to voltage signal；
Several piezoelectric film sensors include several groups pvdf membrane array, and each group of pvdf membrane array include laterally 4 ×
Longitudinal 4 totally ten six pvdf membrane sensors；
The pvdf membrane sensor is 2.8mm × 2.8mm single-point PVDF piezoelectric film sensors, each single-point PVDF piezoelectric membranes
Distance is less than 0.8mm between sensor.
6. Intelligent football training system as claimed in claim 5, which is characterized in that the pulse transducer further includes at signal
Unit is managed, the signal processing unit includes：
Front linear charge amplifier, it is for the impedance matching with the energy converter of the piezoelectric film sensor, high impedance is defeated
Enter to be converted to low-impedance voltage output, and faint sensing signal is converted into voltage signal and is amplified；
Noise reduction unit, the voltage signal for being exported to the front linear charge amplifier carry out noise reduction process；The noise reduction
Unit includes filter circuit, and the filter circuit is by second-order filter structure composition：
Low-pass filter circuit is made of R1 and C1, upper cut-off frequency 1100Hz, so that the higher hamonic wave of pulse signal is logical
It crosses, the pulse characteristics information of signal reflection is completely retained；
Low-pass filter, for filtering out High-frequency Interference；
The noise reduction unit further includes that the reference electrode of a contact skin is arranged, and reference electrode is connected simulation ground, with effective
Eliminate conventional Hz noise；
The signal processing unit further includes a processor, and the processor is considered as a queue by 256 obtained data are measured,
Primary new measurement is often carried out, measurement result is just put into tail of the queue, and rejects a data of original head of the queue；To described 256
Data compare size one by one, remove maximum value and minimum value therein, then calculate the average value of 254 data.
7. Intelligent football training system as claimed in claim 3, which is characterized in that the signal acquisition method of signal acquisition module
Including：
First, echo signal x (t) is acquired within the independent sampling period with awareness apparatus, is used in combination A/D modes to signal
Carry out digital quantization；Then, dimensionality reduction is carried out to the signal x (i) after quantization；Finally, the signal after dimensionality reduction is reconstructed；Wherein
T is sampling instant, and i is the signal sequence after quantization.
8. Intelligent football training system as claimed in claim 7, which is characterized in that carry out dimensionality reduction, tool to the signal after quantization
Body is the difference equation for passing through finite impulse response filter to the signal after quantizationI=1 ...,
M, wherein h (0) ..., h (L-1) are filter coefficient, design the compressed sensing signal acquisition frame based on filtering, and construction is as follows
Teoplitz calculation matrix：
Then observeI=1 ..., M, wherein b1,…,bLRegard filter coefficient as；Submatrix ΦFTIt is strange
Different value is gram matrix G (ΦF, T) and=Φ 'FTΦFTThe arithmetic root of characteristic value, all eigenvalue λ i ∈ of verification G (Φ F, T)
(1-δK,1+δK), i=1 ..., T, then ΦFMeet RIP, and original signal is reconstructed by solving following formula optimization problem：
Original signal, that is, BP algorithm are reconstructed by linear programming method；
For actual compression signal Φ is then changed such as the acquisition of pulse pressure signalFFor following form：
If signal has sparsity on transformation basic matrix Ψ, by solving following formula optimization problem, Accurate Reconstruction
Go out original signal：
Wherein Φ is uncorrelated to Ψ, and Ξ is known as CS matrixes.
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| CN107982892A (en) * | 2017-11-21 | 2018-05-04 | 五邑大学 | A kind of intelligence passs ball system |
| CN108252566B (en) * | 2017-12-28 | 2020-05-01 | 广州华夏职业学院 | A induction type protecting wire net device for stadium |
| CN108568078A (en) * | 2018-06-12 | 2018-09-25 | 吉林工程技术师范学院 | A kind of goalball training device and method |
| CN109126082A (en) * | 2018-10-18 | 2019-01-04 | 刘庆斌 | A kind of football biography connects the intelligent training system and method for combination attack and defence |
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| CN2604209Y (en) * | 2003-02-20 | 2004-02-25 | 北京市体科健体育科技有限公司 | Digital football training game apparatus |
| KR20110007321A (en) * | 2009-07-16 | 2011-01-24 | 유인자 | Golf putt training apparatus to announce putting arrival distance |
| US9987541B2 (en) * | 2014-08-18 | 2018-06-05 | Gudmundur Orn Traustason | Method and apparatus for a user-configurable athletic training apparatus |
| CN205434918U (en) * | 2015-12-14 | 2016-08-10 | 万厚全 | Multi -functional football training system |
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