CN101058022A - Embedded digital hammer and measuring method thereof - Google Patents
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- CN101058022A CN101058022A CN 200610039924 CN200610039924A CN101058022A CN 101058022 A CN101058022 A CN 101058022A CN 200610039924 CN200610039924 CN 200610039924 CN 200610039924 A CN200610039924 A CN 200610039924A CN 101058022 A CN101058022 A CN 101058022A
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- 238000005259 measurement Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
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- 238000005516 engineering process Methods 0.000 abstract description 10
- 238000004445 quantitative analysis Methods 0.000 abstract description 3
- 230000000386 athletic effect Effects 0.000 description 10
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- 238000013459 approach Methods 0.000 description 1
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- 230000000903 blocking effect Effects 0.000 description 1
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Abstract
The invention relates to an embedded digital hammer and a measuring method thereof, wherein the hammer comprises a singlechip information processing unit and an interface, the singlechip information processing unit is embedded in the hammer body, a singlechip, a memory, an RS-232 serial interface and interface circuit, a status indicator lamp, a battery and power management circuit and a three-dimensional acceleration sensor which are mutually and electrically connected are arranged in the singlechip information processing unit, and the three-dimensional acceleration sensor acquires and stores the three-dimensional acceleration information of the hammer body in the training of athletes in real time; the measuring method comprises the steps of receiving analog quantity information and outputting digital quantity information of the three-dimensional acceleration sensor, and can be used in cooperation with a high-speed motion analyzer, a digital stroboscope, a high-speed camera and the like; the invention can acquire the three-dimensional acceleration information of the hammer ball body in real time, quickly and accurately carry out quantitative analysis on the throwing technology of the athlete, and realize the digital and intelligent training of hammer ball movement.
Description
Affiliated field the present invention relates to the sensor application technical field, particularly relates to a kind of embedded type digital hammer and the measuring method thereof of sports and scientific research aspect.
Background technology in recent years, the scientific and technological content that countries in the world are more paid attention to improving results is as new growth point in the new century athletics sports development, rely on scientific method and means that the sportsman is trained, improve athletic technical merit, this has become a kind of trend of world's athletics sports training.
Hammer is the heavy implement project in the throwing event, in the daily workout of hammer motion, need carry out quantitative analysis to athletic throwing technique, improves and formulate the foundation of sentific training plan as special technological movement.In the training of hammer motion, can use the high-speed motion analyzer to come hammer motion to analyze, this alanysis instrument has models such as CR2000, KODA1012; Also can adopt the portable digital stroboscope to come the movement locus of hammer is followed the tracks of, this series products has the portable digital stroboscope MOVA-STROBE PB of U.S. MOVARCH instrument company, MOVA-STROBE 230 etc.The utility model patent CN2593845Y " Numerical shot " of Hefei Intelligent Machinery Inst., Chinese Academy of Scineces's application in 2003, the structure of this Numerical shot is: on all steel in the lower casing, E shape diaphragm elastomer, last gravity compensation block, circuit board, following gravity compensation block and battery folder are installed, form a three-dimensional strength measurement sensor with the same appearance and size with the standard shot and weight.This Numerical shot can guarantee that the sportsman tests under near true training and competition environment, dynamics data is gathered convenient and reliable.The weak point of this utility model is: this Numerical shot can only be gathered the dynamics data of shot, the stressing conditions of shot in promptly training, so also just can not analyze the parameter of the kinematics aspect of shot and can not obtain in the training process shot at the acceleration information of all directions.
Summary of the invention is according to the deficiencies in the prior art, the objective of the invention is: a kind of embedded type digital hammer and measuring method thereof are provided, this embedded hammer can accurately record the three-dimensional acceleration information of hammer head at every bit, be used for kinematics, the kinetic parameter of hammer head in the quantitative analysis training athlete, the athletic throwing technique of scientific evaluation.
Technical scheme of the present invention is: a kind of embedded type digital hammer, comprise the spheroid and the handle that connect by the ball chain, it is characterized in that: this hammer also comprises a single-chip machine information processing unit and interface, described single-chip machine information processing unit is embedded in the inside of hammer head, the single-chip machine information processing unit is built-in with the single-chip microcomputer of mutual electrical connection, memory, RS-232 serial line interface and interface circuit, status indicator lamp, battery and electric power management circuit and three dimension acceleration sensor, three dimension acceleration sensor is gathered in real time, the three-dimensional acceleration information of hammer head is imported computer by interface with signal in storing moving person's training.
Said hammer head is a hollow metal shell.
Said single-chip machine information processing unit volume is 8cm
3～11cm
3
Single-chip microcomputer in the said single-chip microcomputer signal processing unit is MSP430F149.
Said single-chip machine information processing unit is designed to one deck square plate or two-layer square plate, or circular slab.
Said single-chip machine information processing unit or use in shot, the discus and go is made embedded digital shot, embedded digital discus.
A kind of measuring method of embedded type digital hammer comprises the analog quantity information and the output digital information that receive three dimension acceleration sensor, it is characterized in that:
Set the original state of described single-chip machine information processing unit, described three dimension acceleration sensor is started working;
Setting begins rotation from hammer lands up to hammer, and the single-chip machine information processing unit is in running order always, and the frequency of described three dimension acceleration sensor Information Monitoring is 200 times/s;
The information of described three dimension acceleration sensor output is analog quantity, and described single-chip microcomputer is handled information, and analog quantity is converted to digital quantity;
The digital information recording that described single-chip microcomputer handle is handled well is in memory;
After hammer lands, the power cut-off of single-chip machine information processing unit;
Described RS-232 serial line interface is linked to each other with microcomputer interface, the three-dimensional acceleration information of hammer head input computer, kinematics, kinetic parameter that can the analysis chain ball.
Said embedded type digital hammer or be used with high-speed motion analyzer, digital stroboscope, high-speed camera, when obtaining the hammer head three-dimensional acceleration, obtain hammer head when rotated with throwing after movement locus.
The measuring method of said a kind of embedded type digital hammer or use in the measurement of embedded digital shot, embedded digital discus and go.
Can make the hammer training realize digitlization as a kind of, intelligentized embedded type digital hammer, said single-chip machine information processing unit is built-in with the single-chip microcomputer of mutual electrical connection, memory, RS-232 serial line interface and interface circuit, status indicator lamp, battery and electric power management circuit and three dimension acceleration sensor, single-chip microcomputer adopts the MSP430F149 of MSP430 series, three dimension acceleration sensor is formed by stacking by a two dimension acceleration sensor (ADXL250) and an one dimension acceleration transducer (ADXL78), memory adopts AT45DB161, and interface convertor adopts MAX3221.
Beneficial effect with respect to prior art is:
One, the Numerical shot of prior art is to be linked into an integrated entity by screw thread and trip bolt by upper casing and lower casing and E shape diaphragm elastomer, reserve the space of 1mm between upper casing and the lower casing, and embed an O-ring seals prevent dust with avoid measuring process in the contacting of upper casing and lower casing.Because shot is a throwing event, shock resistance to the Numerical shot structure requires very high, and this structure of prior art is difficult to guarantee in athletic training process, and becoming flexible does not appear in the screw that plays the connection effect, so also just can not guarantee the stability and the practicality of this Numerical shot.The present invention in terms of existing technologies, hammer head is the hollow metal housing of an integral body, Stability Analysis of Structures, shock resistance is good, can guarantee the accuracy of institute's Information Monitoring, this has just guaranteed practicality of the present invention.
They are two years old, the Numerical shot of prior art comprises three-dimensional force sensor, can be used for analyzing the kinetic parameter of shot, the present invention in terms of existing technologies, comprise three dimension acceleration sensor, can obtain the three-dimensional acceleration information of hammer head, kinetic parameter that like this not only can the analysis chain ball, the more important thing is can also the analysis chain ball kinematics parameters.
They are three years old, in terms of existing technologies, single-chip machine information processing unit of the present invention is built-in with single-chip microcomputer, memory, RS-232 serial line interface and interface circuit, status indicator lamp, battery and electric power management circuit and the three dimension acceleration sensor of mutual electrical connection, and status indicator lamp can be indicated the working condition of single-chip machine information processing unit in real time.The single-chip machine information processing unit can also be used in shot or the discus and go, make embedded digital shot or embedded digital discus, embedded digital shot or embedded digital discus can be gathered the three-dimensional acceleration information of shot or discus equally in real time, realize the digitlization of shot or discus, intelligent training.
They are four years old, in terms of existing technologies, a kind of measuring method of embedded type digital hammer, the analog quantity information and the output digital information that comprise receiving sensor, the three-dimensional acceleration information of three dimension acceleration sensor acquisition link ball, it is output as analog quantity, and single-chip microcomputer is handled information, and analog quantity is converted to digital quantity.Hammer energy while acquisition link ball therefore of the present invention is at the acceleration information of three directions, and then can calculate the hammer centrifugal force when rotated and the parameters such as throwing initial velocity of hammer, thereby help the coach accurately to obtain athletic every technical indicator, improve drill program, improve athletic technical merit.
They are five years old, in terms of existing technologies, propose a kind of embedded type digital hammer and measuring method thereof first, adopted Embedded design philosophy, concentrate sensor technology, embedded computing technique and interfacing, realized digitlization, the intellectuality of hammer training.In addition, embedded type digital hammer can also be used with high-speed motion analyzer, digital stroboscope, high-speed camera, makes when obtaining the hammer head three-dimensional acceleration, obtain hammer head when rotated with throwing after movement locus.
They are six years old, in terms of existing technologies, a kind of measuring method of embedded type digital hammer can also be used in the measurement of embedded digital shot or embedded digital discus and go, can receive the analog quantity information and the output digital information of three dimension acceleration sensor equally, obtain the three-dimensional acceleration information of shot or discus.
The present invention is further illustrated below in conjunction with accompanying drawing for description of drawings.
Fig. 1 is the structure chart of embedded type digital hammer;
Fig. 2 is the circuit block diagram of single-chip machine information processing unit;
Fig. 3 is the workflow diagram of single-chip machine information processing unit.
The specific embodiment is referring to Fig. 1, Fig. 2, Fig. 3.Among Fig. 1,1: spheroid; 2: the single-chip machine information processing unit; 3: interface; 4: the ball chain; 5: handle.
Among Fig. 1, a kind of embedded type digital hammer comprises spheroid 1, single-chip machine information processing unit 2, interface 3, ball chain 4 and handle 5, wherein, spheroid 1, ball chain 4 and handle 5 are common sports parts with hammer, single-chip machine information processing unit 2 is embedded in the inside of hammer head 1, single-chip machine information processing unit 2 is built-in with the MSP430F149 single-chip microcomputer of mutual electrical connection, memory and three dimension acceleration sensor etc., three dimension acceleration sensor is gathered in real time, the three-dimensional acceleration information of hammer head 1 in the storing moving person training is imported computer by interface 3 with information.
The present invention has adopted Embedded design philosophy, with single-chip machine information processing unit 2 embedded chain balls 1, and then hammer head encapsulated, the power switch on RS-232 serial line interface 3 and battery and the electric power management circuit exposes the surface at hammer head, seals with blocking a shot when training.
Device of the present invention is as good as with common hammer to outward seeming, but owing to used single-chip machine information processing unit 2, in athletic daily workout, available the present invention comes the three-dimensional acceleration information of real-time acquisition link ball 1, can be by RS-232 serial line interface 3 with the information input computer of gathering, utilize analysis software just can analyze centrifugal force of athletic rotation technique index, hammer etc., easy to use, reliable.
Hammer of the present invention also can be used with instruments such as high-speed motion analyzers, when obtaining hammer head 1 three-dimensional acceleration, obtain hammer head when rotated with throwing after movement locus, so not only can analyze the parameter such as acceleration, centrifugal force of hammer, also can analyze acceleration approach, center of gravity variation and the hammer operation inclined-plane variation etc. of hammer, realize the digitlization of hammer motion, the intelligent training.In addition, measuring method of the present invention can also be used in the measurement of embedded digital shot or embedded digital discus and go, can receive the analog quantity information and the output digital information of three dimension acceleration sensor equally, obtain the three-dimensional acceleration information of shot or discus.
Fig. 2 is single-chip machine information processing unit 2 circuit block diagrams, comprises mutual electrical connection: be used to finish automatic control program and carry out the MSP430F149 single-chip microcomputer that data are handled, single-chip microcomputer is useful on the AD converter of digital quantity and analog quantity conversion; Be used to store the memory of hammer three-dimensional acceleration information; Be used for communicating by letter, hammer three-dimensional acceleration information be written into the RS-232 serial line interface and the interface circuit of computer with microcomputer interface; Be used to indicate the status indicator lamp of single-chip machine information processing unit 2 duties; Be used for battery and electric power management circuit to single-chip machine information processing unit 2 each module for power supply; Be used for gathering in real time the three dimension acceleration sensor of hammer three-dimensional acceleration information.
Fig. 3 is the workflow diagram of single-chip machine information processing unit 2, its workflow is as follows: after opening the power switch of battery and electric power management circuit, status indicator lamp is bright, the MSP430F149 single-chip microcomputer presets initial value to each subprogram of having stationed in its own functional part and the internal memory, promptly sets its initialization state (step 110).Then in step 120, does the MSP430F149 single-chip microcomputer judge that three dimension acceleration sensor sensed acceleration? in case three dimension acceleration sensor has been sensed acceleration, this expression sportsman has begun to rotate hammer, three dimension acceleration sensor will commence work without delay, the real-time three-dimensional acceleration information (step 130) of acquisition link ball 1, the frequency by the Information Monitoring of software set three dimension acceleration sensor is 200 times/s.Then, in step 140, the MSP430F149 single-chip microcomputer is handled the analog information of exporting from three dimension acceleration sensor, and analog quantity is converted to digital quantity.Afterwards, in step 150, the information that memory stores MSP430F149 single-chip microcomputer is handled well.After hammer lands, 2 power cut-offs (step 160) of single-chip machine information processing unit.
At single-chip machine information processing unit 2 duration of works, status indicator lamp is in the state of flicker always.After 2 power cut-offs of single-chip machine information processing unit, RS-232 serial line interface 3 on RS-232 serial line interface and the interface circuit can be linked to each other with computer interface, memory is just imported the MSP430F149 single-chip microcomputer with the information of record, the MSP430F149 single-chip microcomputer is written into computer with information through RS-232 serial line interface 3 again, simultaneously also can be with the information in the computer through RS-232 serial line interface 3 input MSP430F149 single-chip microcomputers.
Obviously, those skilled in the art can carry out various changes and modification to embedded type digital hammer of the present invention and measuring method thereof and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (9)
1, a kind of embedded type digital hammer, comprise the spheroid (1) and the handle (5) that connect by ball chain (4), it is characterized in that: this hammer also comprises a single-chip machine information processing unit (2) and interface (3), described single-chip machine information processing unit (2) is embedded in the inside of hammer head (1), single-chip machine information processing unit (2) is built-in with the single-chip microcomputer of mutual electrical connection, memory, RS-232 serial line interface and interface circuit, status indicator lamp, battery and electric power management circuit and three dimension acceleration sensor, three dimension acceleration sensor is gathered in real time, the three-dimensional acceleration information of hammer head (1) is imported computer by interface (3) with information in storing moving person's training.
2, a kind of embedded type digital hammer according to claim 1 is characterized in that said hammer head (1) is a hollow metal shell.
3, a kind of embedded type digital hammer according to claim 1 is characterized in that said single-chip machine information processing unit (2) volume is 8cm
3～11cm
3
4, a kind of embedded type digital hammer according to claim 1 is characterized in that the single-chip microcomputer in the said single-chip microcomputer signal processing unit (2) is MSP430F149.
5, a kind of embedded type digital hammer according to claim 1 is characterized in that said single-chip machine information processing unit (2) is designed to one deck square plate or two-layer square plate, or circular slab.
6, a kind of embedded type digital hammer according to claim 1 is characterized in that said single-chip machine information processing unit (2) or uses in shot, the discus and go, and makes embedded digital shot, embedded digital discus.
7, a kind of measuring method of using the described a kind of embedded type digital hammer of claim 1 comprises the analog quantity information and the output digital information that receive three dimension acceleration sensor, it is characterized in that:
Set the original state of described single-chip machine information processing unit (2), described three dimension acceleration sensor is started working;
Setting begins rotation from hammer lands up to hammer, and single-chip machine information processing unit (2) is in running order always, and the frequency of described three dimension acceleration sensor Information Monitoring is 200 times/s;
The information of described three dimension acceleration sensor output is analog quantity, and described single-chip microcomputer is handled information, and analog quantity is converted to digital quantity;
The digital information recording that described single-chip microcomputer handle is handled well is in memory;
After hammer head (1) lands, single-chip machine information processing unit (2) power cut-off;
Described RS-232 serial line interface (3) is linked to each other with microcomputer interface, the three-dimensional acceleration information of hammer head (1) input computer, kinematics, kinetic parameter that can analysis chain ball (1).
8, the measuring method of a kind of embedded type digital hammer according to claim 7, it is characterized in that said embedded type digital hammer or be used with high-speed motion analyzer, digital stroboscope, high-speed camera, when obtaining hammer head (1) three-dimensional acceleration, obtain hammer head (1) when rotated with throwing after movement locus.
9, the measuring method of a kind of embedded type digital hammer according to claim 7 is characterized in that the measuring method of said a kind of embedded type digital hammer or uses in the measurement of embedded digital shot, embedded digital discus.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100399248A CN101058022B (en) | 2006-04-21 | 2006-04-21 | Measuring method of embedded type digital hammer ball |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100399248A CN101058022B (en) | 2006-04-21 | 2006-04-21 | Measuring method of embedded type digital hammer ball |
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| Publication Number | Publication Date |
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| CN101058022A true CN101058022A (en) | 2007-10-24 |
| CN101058022B CN101058022B (en) | 2010-07-28 |
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| CN2006100399248A Expired - Fee Related CN101058022B (en) | 2006-04-21 | 2006-04-21 | Measuring method of embedded type digital hammer ball |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102989155A (en) * | 2012-11-23 | 2013-03-27 | 安徽寰智信息科技股份有限公司 | Hammer throw training auxiliary system based on action recognition technology |
| CN103456209A (en) * | 2013-09-26 | 2013-12-18 | 南京财经大学 | Gravitational acceleration measurement demonstration device and method |
| CN103691127A (en) * | 2013-12-25 | 2014-04-02 | 北方工业大学 | Discus height measurement device based on ultrasonic sensor |
| CN104469325A (en) * | 2014-12-26 | 2015-03-25 | 安徽寰智信息科技股份有限公司 | Video collecting and processing method used for weight throw teaching and training |
| CN114028784A (en) * | 2021-11-25 | 2022-02-11 | 深圳先进技术研究院 | Wearable sports biological information monitoring system and method applied to hammer training |
-
2006
- 2006-04-21 CN CN2006100399248A patent/CN101058022B/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102989155A (en) * | 2012-11-23 | 2013-03-27 | 安徽寰智信息科技股份有限公司 | Hammer throw training auxiliary system based on action recognition technology |
| CN102989155B (en) * | 2012-11-23 | 2015-06-24 | 安徽寰智信息科技股份有限公司 | Hammer throw training auxiliary system based on action recognition technology |
| CN103456209A (en) * | 2013-09-26 | 2013-12-18 | 南京财经大学 | Gravitational acceleration measurement demonstration device and method |
| CN103456209B (en) * | 2013-09-26 | 2015-09-30 | 南京财经大学 | A kind of acceleration of gravity measures apparatus for demonstrating and demenstration method |
| CN103691127A (en) * | 2013-12-25 | 2014-04-02 | 北方工业大学 | Discus height measurement device based on ultrasonic sensor |
| CN103691127B (en) * | 2013-12-25 | 2016-06-22 | 北方工业大学 | A kind of discus height measuring device based on ultrasonic sensor |
| CN104469325A (en) * | 2014-12-26 | 2015-03-25 | 安徽寰智信息科技股份有限公司 | Video collecting and processing method used for weight throw teaching and training |
| CN114028784A (en) * | 2021-11-25 | 2022-02-11 | 深圳先进技术研究院 | Wearable sports biological information monitoring system and method applied to hammer training |
| CN114028784B (en) * | 2021-11-25 | 2023-01-31 | 深圳先进技术研究院 | Wearable sports biological information monitoring system and method applied to hammer training |
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| CN101058022B (en) | 2010-07-28 |
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