CN106267762A - A kind of assay method of table tennis number of blows - Google Patents
A kind of assay method of table tennis number of blows Download PDFInfo
- Publication number
- CN106267762A CN106267762A CN201610664937.8A CN201610664937A CN106267762A CN 106267762 A CN106267762 A CN 106267762A CN 201610664937 A CN201610664937 A CN 201610664937A CN 106267762 A CN106267762 A CN 106267762A
- Authority
- CN
- China
- Prior art keywords
- table tennis
- frequency
- sound wave
- signal
- blows
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B67/00—Sporting games or accessories therefor, not provided for in groups A63B1/00 - A63B65/00
- A63B67/04—Table games physically beneficial for the human body, modelled on outdoor sports, e.g. table tennis
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
- G06M1/00—Design features of general application
- G06M1/08—Design features of general application for actuating the drive
- G06M1/10—Design features of general application for actuating the drive by electric or magnetic means
- G06M1/108—Design features of general application for actuating the drive by electric or magnetic means by electronic means
Abstract
A kind of assay method of table tennis number of blows, relate to a kind of method utilizing mechanical wave to measure table tennis number of blows, when table tennis strikes base plate, table tennis and base plate generation vibration become sounding body, the frequency of sound wave that its vibration produces is between 1.5kHz 4.5kHz, by this frequency of sound wave record and this acoustic signals is sent to audio-frequency signal converter when capacitor microphone in cavity receives this frequency of sound wave, audio-frequency signal converter is converted to digital signal acoustic signals and this digital signal is sent to signal receiving-transmitting device, signal receiving-transmitting device is sent to external receiver digital signal, external receiver resolves digital signal, and identify, calculate the number of times of impact table tennis.Compared with prior art, the present invention is by installing capacitor microphone at racket handle additional, then the sound wave using capacitor microphone to produce when detecting each table tennis impact racket just can measure the number of times of table tennis impact racket fast and accurately, solves to measure to need people's number number or the problem of video identification in the past.
Description
Technical field
The present invention relates to the measuring method of a kind of table tennis number of blows, a kind of side utilizing mechanical wave to measure
Method.
Background technology
Table tennis is the most popular a kind of motion, has only to simple billiard table due to it and racket just can be lived
Dynamic, in China, there is mass foundation widely.The exercise and match of table tennis need to enter the number of blows of racket
Row counting, existing counting mode is the most all to be added up by artificial range estimation, but once striking speed is too fast or returns
Close number of times and the most just influence whether to count the judgement of people so that error occurs in counting.This situation is used at part venue
Video acquisition counting method, this kind of method goes out number of blows by video analysis thus computational analysis, but this kind of method of counting
Need special video capture device and the debugging of specialty so that count with high costs, only when carrying out big event
Can use.The most existing table tennis need a kind of quick and easy, impact method of counting simply, accurately, in order to playing
Impact counting is carried out when playing, practise and compete.
Summary of the invention
The present invention is directed to deficiency of the prior art, it is provided that the assay method of a kind of table tennis number of blows, by right
Install capacitor microphone at racket handle additional, then use the sound wave that capacitor microphone produces when detecting each table tennis impact racket with regard to energy
Measuring the number of times of table tennis impact racket fast and accurately, solve to measure needs asking of people's number number or video identification in the past
Topic.
In order to solve above-mentioned technical problem, the present invention is addressed by following technical proposals: include racket, described ball
Bat includes base plate and handle, is provided with the cavity near base plate, is provided with capacitor microphone, also sets up in handle in cavity in handle
Having audio-frequency signal converter and signal receiving-transmitting device: when table tennis strikes base plate, table tennis and base plate generation vibration become sending out
Sound body, the frequency of sound wave that its vibration produces is between 1.5kHz 4.5kHz, and the capacitor microphone in cavity receives this sound wave frequency
By this frequency of sound wave record and this acoustic signals being sent to audio-frequency signal converter during rate, audio-frequency signal converter believes sound wave
Number being converted to digital signal and this digital signal is sent to signal receiving-transmitting device, signal receiving-transmitting device is sent to outside digital signal
Receptor, external receiver resolves digital signal, and identifies, calculates the number of times of impact table tennis.
In technique scheme, it is preferred that capacitor microphone is electret capacitor microphone.
In technique scheme, it is preferred that described capacitor microphone filters out less than 1.5kHz and more than 4.5kHz's
Sound wave.
In technique scheme, it is preferred that described audio-frequency signal converter and described signal receiving-transmitting device are embedded in described
Handle in.
In technique scheme, it is preferred that being additionally provided with in described handle can be with the battery changed.
The present invention is the method for counting of a kind of table tennis ball kicking number, when people is when playing table tennis, and the table tennis of high-speed motion
When clashing into racket, table tennis and racket will vibrate and become sounding body, the frequency that its vibration occurs between 2kHz 4kHz, and
This frequency and environment noise frequency have bigger difference.The present invention just utilizes this characteristic to be close to a sky of base plate at handle
In the little space in chamber, if placing strong sensing, big vibrating diaphragm, cylinder capacitor microphone collects audio signal, because the little space of cavity is permissible
Filter the noise of surrounding, and obtain the audio signal that table tennis bat impacts to greatest extent, so can accurately record every
Impact the most really.Then audio signal is sent to audio-frequency signal converter and is converted into digital signal, then pass through signal
Receiving-transmitting device sends signals to the number of times that external receiver identifies with this, calculates impact table tennis.The present invention can accurately record
The impact of table tennis is to the number of times of racket every time, and can filter out invalid collision, allows striker understand the batting of oneself completely
Level and feature.
Compared with prior art, the present invention, by installing capacitor microphone at racket handle additional, then uses capacitor microphone to detect
Survey each table tennis impact racket time produce sound wave just can measure fast and accurately table tennis impact racket number of times, solution with
People's number number or the problem of video identification is needed toward measuring.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is described in further detail.
Embodiment 1: the assay method of a kind of table tennis number of blows, it is necessary first to transform racket, needs at ball
Clapping hands and be provided with the cavity near base plate in handle, be provided with capacitor microphone in cavity, capacitor microphone is electret capacitor microphone, institute
The capacitor microphone stated filters out less than 1.5kHz and the sound wave more than 4.5kHz.Capacitor microphone connects the audio frequency being embedded in handle
Signal adapter and signal receiving-transmitting device, be additionally provided with battery in handle simultaneously, and battery is typically changed from handle base.Carry out
During ping-pong sport, when table tennis strikes base plate, and table tennis and base plate generation vibration become sounding body, the sound wave that its vibration produces
Frequency is between 1.5kHz 4.5kHz, when the capacitor microphone in cavity receives this frequency of sound wave by this frequency of sound wave record also
This acoustic signals is sent to audio-frequency signal converter, and audio-frequency signal converter is converted to digital signal and this acoustic signals
Digital signal is sent to signal receiving-transmitting device, and signal receiving-transmitting device is sent to external receiver digital signal, and external receiver resolves
Digital signal, and identify, calculate the number of times of impact table tennis.The frequency of sound wave produced during due to table tennis shock different parts is not
The most identical, the capacitor microphone being arranged in cavity only can receive the frequency of sound wave produced when table tennis clashes into base plate, will not allow it
His sound wave disturbs the accuracy that this method is measured.Only arranging capacitor microphone in cavity, other devices are embedded in handle simultaneously, when
When table tennis clashes into base plate, cavity can play potentiation, allows table tennis and base plate clash into the sound wave produced and strengthens, more convenient
The acquisition of capacitor microphone, cavity also has the effect getting rid of environmental noise interference simultaneously.
Claims (5)
1. an assay method for table tennis number of blows, including racket, described racket includes base plate and handle, its feature
For, it is provided with the cavity near base plate in handle, in cavity, is provided with capacitor microphone, in handle, be additionally provided with audio signal conversion
Device and signal receiving-transmitting device:
When table tennis strikes base plate, table tennis and base plate generation vibration become sounding body, the frequency of sound wave that its vibration produces
Between 1.5kHz 4.5kHz, by this frequency of sound wave record and this when the capacitor microphone in cavity receives this frequency of sound wave
Acoustic signals is sent to audio-frequency signal converter, and audio-frequency signal converter is converted to digital signal and this numeral acoustic signals
Signal is sent to signal receiving-transmitting device, and signal receiving-transmitting device is sent to external receiver digital signal, and external receiver resolves numeral
Signal, and identify, calculate the number of times of impact table tennis.
The assay method of a kind of table tennis number of blows the most according to claim 1, is characterized by, capacitor microphone is electret
Body capacitance microphone.
The assay method of a kind of table tennis number of blows the most according to claim 1, is characterized by, described capacitor microphone
Filter out less than 1.5kHz and the sound wave more than 4.5kHz.
The assay method of a kind of table tennis number of blows the most according to claim 1, is characterized by, described audio signal
Transducer and described signal receiving-transmitting device are embedded in described handle.
The assay method of a kind of table tennis number of blows the most according to claim 1, is characterized by, in described handle also
Being provided with can be with the battery changed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610664937.8A CN106267762A (en) | 2016-08-15 | 2016-08-15 | A kind of assay method of table tennis number of blows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610664937.8A CN106267762A (en) | 2016-08-15 | 2016-08-15 | A kind of assay method of table tennis number of blows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106267762A true CN106267762A (en) | 2017-01-04 |
Family
ID=57670807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610664937.8A Pending CN106267762A (en) | 2016-08-15 | 2016-08-15 | A kind of assay method of table tennis number of blows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106267762A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107376200A (en) * | 2017-08-08 | 2017-11-24 | 河南省富可达科技有限公司 | A kind of novel sounding rope skipping |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2411030Y (en) * | 1999-10-27 | 2000-12-20 | 崇林企业股份有限公司 | Ball capable of measuring speed and strength for training |
| US20020068652A1 (en) * | 2000-09-15 | 2002-06-06 | Stewart Sims | Count it racket |
| CN2624981Y (en) * | 2003-05-22 | 2004-07-14 | 环海春 | Table tennis bat |
| WO2010061019A1 (en) * | 2008-11-25 | 2010-06-03 | Noel Rodo Alonso | Table tennis bat |
| CN201643580U (en) * | 2010-03-11 | 2010-11-24 | 王才本 | Table tennis racket |
| CN203915985U (en) * | 2014-06-16 | 2014-11-05 | 广州双鱼体育用品集团有限公司 | The base plate of modified table tennis bat and table tennis bat thereof |
-
2016
- 2016-08-15 CN CN201610664937.8A patent/CN106267762A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2411030Y (en) * | 1999-10-27 | 2000-12-20 | 崇林企业股份有限公司 | Ball capable of measuring speed and strength for training |
| US20020068652A1 (en) * | 2000-09-15 | 2002-06-06 | Stewart Sims | Count it racket |
| CN2624981Y (en) * | 2003-05-22 | 2004-07-14 | 环海春 | Table tennis bat |
| WO2010061019A1 (en) * | 2008-11-25 | 2010-06-03 | Noel Rodo Alonso | Table tennis bat |
| CN201643580U (en) * | 2010-03-11 | 2010-11-24 | 王才本 | Table tennis racket |
| CN203915985U (en) * | 2014-06-16 | 2014-11-05 | 广州双鱼体育用品集团有限公司 | The base plate of modified table tennis bat and table tennis bat thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107376200A (en) * | 2017-08-08 | 2017-11-24 | 河南省富可达科技有限公司 | A kind of novel sounding rope skipping |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170104 |