DESIGN AND IMPLEMENTATION OF BASKETBALL TEACHING PLATFORM

Transcription

1 0 th February 03. Vol. 48 No JATIT & LLS. All rghts reserved. ISSN: E-ISSN: DESIGN AND IMPLEMENTATION OF BASKETBALL TEACHING PLATFORM BO SU, SUFEI YANG, AIMIN QIN Deartment of Physcal Educaton, Hebe Unversty of Technology, 30030, TanJn, Chna, E-mal : bosu_03@63.com ABSTRACT Wth the develoment of nternet technology and multmeda technology, the school begns to exlore new teachng model n the reform of new teachng, havng strong basketball teachng nteractve, hgher teachng acton mtaton memory requrement and other characterstcs, therefore becomng the focus of teachng reform. Basketball s one of the most oular sorts currculums, and basketball teachng resources are lmt, teachers can not meet the needs of the students. Based on basketball teachng latform of nternet technology, the frst art of ths aer gves the latform desgn flow chart, the use of the dstance multvarate control theory, to establsh the mathematcal model of teachng latform tme and the roorton of content; the second art gves the CAI courseware algorthm and rogrammng based on the nternet and VRML technology, to carry out rogrammng and calculaton by usng VC++ rogrammng software, and to carry out numercal otmzaton desgn for the roorton of teachng latform tme and content that can obtan the resdual analyss chart, the fnal desgn of basketball network teachng latform after the otmzed, to realze the sharng of basketball teachng resources and teachng staff. Keywords: Internet Technology, Basketball Teachng Platform, Dstance Multvarate, VC++ Programmng, VRML Technology, Numercal Otmzaton. INTRODUCTION The basketball sort s one of the students favorte sorts, whch s a large number of general courses, however the teachng resource s lmted by the teachers strength, basketball sorts teachng could not reach the exected effect, and even many students do not choose class. Wth the develoment of nternet and multmeda technology, network teachng has become oular. Basketball teachng has strong learnng nteractve, teachng acton mtaton memory and so on, and t s artcularly sutable for network teachng. In ths aer, based on the theory of multle varables algorthm, nternet basketball teachng latform s dvded, the frst art of the aer gves the flow chart of Internet basketball teachng latform, and then to gve the mathematcal model of teachng tme and the roorton of the content. For nformaton technology theory, t contans nformaton control technology, to carry out analyss from the ersectve of control theory, and then the control of nformaton technology system needs to carry out target control oeraton as well as all knds of nformaton transmsson and exchange []. The collected nformaton s dslayed as the rocess and form of a movement rocess. In the rocess of basketball sorts tranng, because basketball tranng contans a large amount of nformaton elements, such as the sorts team as well as team level and ablty, these elements form a secal basketball runnng tranng nformaton structure, the master nformaton can romote the basketball movement tranng that can be accurate analyss of basketball layers and the whole team 's tranng status nformaton or analyss of tactcal methods, therefore, the need for such nformaton montorng system carry out control and communcaton []. In basketball tranng, the varous nformaton systems carry on the research analyss to master control law, whch can mrove the qualty and level of basketball tranng, and can rovde a scentfc bass of basketball tranng gude. VRML technology s ntroduced nto the rocess of makng CAI courseware of basketball Internet teachng latform, VRML technology s a vrtual envronment that s one of the best modelng software, t can establsh a drectly lnk of clent and the database, whch can convenent edt and oen courseware. The second art of the text ntroduces VC++ software rogrammng software, and the alcablty of the VC++ rogrammng software s very strong[3]. At the same tme the alcablty of many areas of rogrammng 997

2 0 th February 03. Vol. 48 No JATIT & LLS. All rghts reserved. ISSN: E-ISSN: calculaton, through the multle control varables otmzaton algorthm, to otmze the rocessng for the teachng tme and content of basketball network teachng latform, fnally to ut forward the roblems n the latform, and to rovde the relable theory reference for basketball nternet teachng.. THE DEVELOPMENT OF INTERNET BASKETBALL TEACHING PLATFORM AND ITS MATHEMATICAL MODEL The develoment of Internet basketball teachng latform s manly the nteracton between teachers and students, teachers carry out teachng content through the teacher clent, and students want to search nformaton nut through the student clent, the outut can obtan teachng content, accordng to the teachng content, to carry out learnng actvtes [4]. () Internet basketball teachng latform flow chart Internet teachng latform desgn flow chart as shown n Fgure, the teachers carry out basc edtng of webage through teacher end, teachng courseware vdeo s assed to the webage, through the Internet transmsson to the web servce staton, to carry out data rocessng[5]. The customer flow can get the desred nformaton through command. The student clent can get the teachng nformaton through the command nut. Fgure : The Develoment Of Teachng Platform Flow Chart () The tme and content rato of Internet basketball teachng latform and ts mathematcal model In the teachng latform, the use of multvarate control method for the roorton control of teachng tme and teachng content, to consder a teachng tme and content as well as total teachng tme and content, the use of G ndcates normal oulaton, Σ ndcates the covarance matrx, f there are the same G and Σ, to dscrmnate a samle X and the roorton of the overall relatonsh for a gven tme and the rato of content X, we can calculate the X to the overall dstance usng ntutve method, then havng [6]: ( x, Q ) < d ( x, Q ) ( x, Q ) < d ( x, Q ) x Q, f d, () x Q, f d To be judged, f d ( x, Q ) = d ( x, Q ) The dstance can be exressed as the form of the dstance square as followng shown[7]: d x, Q ) d ( x, Q ) = ( x u ) Σ ( x u ) ( x u ) Σ ( x u ) () ( ( u + u ) = [ x ] Σ ( u u Wheren u reresents an average value, settng u + u = Σ ( ) = (,,, ) u =,and a u u b b L b Then P( x) = ( x u ) a = a ( x u) (3) = b ( x u ) + + b ( x u ) L = a x a u The recedng dscrmnaton rule s exressed as[8]: x Q, f P( x) > 0, (4) x Q, f P( x) < 0, To be judged, f P( X ) = 0 Accordng to the ractcal teachng exerence, ths aer wll basketball network classroom tme and content rato s ntally shown n the roorton of Table. Table : Tme Proorton And Content Rato Of Classroom Content Classroom content The roorton of tme ) The roorton of contents Onlne theory teachng before class Network control vdeo classroom demonstraton Onlne after-school answer Onlne basketball test (3) The develoment of CAI courseware on Internet basketball teachng latform Basketball teachng s dfferent from other teachng, vvdness and lvely basketball teachng s relatvely strong, thus makng CAI courseware should have the nnovaton. Ths aer creates a DOA object, and then to call the connecton strng and the database that are connected. The code s as follows[9]: Intal database Data source=my server User ID=lanqujaoxuengta Cn.connecton Strng=User ID Cn.oen 998

3 0 th February 03. Vol. 48 No JATIT & LLS. All rghts reserved. ISSN: E-ISSN: Usng VRML technology, the roorton of classroom content can be rogrammed control, VRML technology s one of the best modelng software under the vrtual envronment, ts CAI software modelng s the followng code [0]: Content { aearance Aearance { Content Proorton { Proorton{ } } } Proorton Resduals { radus 0.0 } } } } Proorton Resduals { radus 0.05 } } } Through the establshment of basketball tranng nformaton, usng the rme scorng methods on basketball tranng nfluencng factors to carry out the authorty score evaluaton, and then to multly by the obtaned value n accordance wth resectve weght values, and to carry out lus, fnally t can obtan the evaluaton scores of basketball tranng nformaton control system []. A total of the evaluaton scores F n basketball tranng nformaton control system s: N m F = = N ω (5) s basketball coach as the evaluaton ndcators of tranng exercse nfluence factor: N n = X j j= j (6) j s exressed as the j-th nfluence basketball sort tranng effect factor s rato value; X j s the average score of -th basketball layer tranng secton s j-th nfluence tranng effect factor: m m m bω, b w,, b wn = = = (7) ω s the correlaton weghted fractonal values of the nfluence of athletes tranng sngle factor: k W = Ak A L k A A (8) λmax m C. = m (9) Usng the tranng effect analyss, statstcs analyss method carres out statstcal on the nformaton data calculaton, whch can reach basketball layer tranng effect, ts comutaton formula s as follows: u = ( )( + ) m m (0) Then usng t statstcal test s theory method, and through the nformaton control system to gude effect analyss and dfference comarson of before and after comarson of basketball layers tranng. Before and after the selected tranng, the t statstcal test of the calculaton formula s[]: t = X X X + X γ X X m () Wheren, X X and are basketball layers tranng whether the nformaton control system to gude the tranng effect of varance before and after the tranng; X and X are resectvely samle basketball layer to gude the tranng effect wthout nformaton control system, and to gude the average value of the tranng effect wth nformaton control system; γ s the value of the correlaton coeffcent, to get the relevant nformaton calculaton of data s shown n Table. Table : The Estmaton Error Of Basketball Tranng Informaton Mean Informaton Hgher Secondary Lower sklls sklls sklls Accuracy (%) 78±9 63± 4±4 Servng heght rato Center of gravty Trunk nclnaton Ptchng angle Ptchng seed (m/s) ± ± ± ± ±0.6 ± ± 0.07 ± ± ± ± ± ± ± ± 0.58 Fgure : Comarson Chart Of Basketball Tranng Effect Basketball sorts tranng rocess s dslayed as a dynamc change rocess of movement, the use 999

4 0 th February 03. Vol. 48 No JATIT & LLS. All rghts reserved. ISSN: E-ISSN: of decson-makng system of nformaton control system also exsts certan dfferences and defcency, the collecton of basketball athletes tranng nformaton and control nformaton go through the outut to the teacher and the athletes themselves n the decson lan, due to the exstence of ndvdual characterstcs on nformaton feedback effect, t wll form a ostve and negatve effect. On the bass of these ostve and negatve effects, basketball athletes show erformance n tranng rocess, coaches need to constantly carry out analyss and observaton on the nformaton, whle takng some test methods to carry out research, n order to get comrehensve nformaton of basketball layers[3]. The nformaton wll carry out feedback nformaton for the whole tranng of the rocess of basketball movement, and be gone through constantly collecton and analyss control outut, makng the deal matchng tranng rogrammer. 3. INTERNET BASKETBALL TEACHING PLATFORM OPTIMIZATION DESIGN Through the form of the clck rate of questonnare survey and statstcs webste, to carry out data statstcal analyss of the e- government servce accetance, and through the nvestgaton analyss, to obtan data as shown n Table 3. The frst art of the aer gets the mathematcal model of the roorton relatonsh of teachng latform varous elements, to relmnary gve the rato relatonsh between teachng tme and content, through the form of questonnare survey, to carry on questonnare for the teachng content of students, the fnal statstcal results are shown n Table 3. Table 3: Statstcal Results Classroom content The roorton of tme The roorton of contents Onlne theory teachng before class Network control vdeo classroom demonstraton Onlne after-school answer Onlne basketball test The use of Table 3 statstc results, the teachng latform of tme and content rato aly the VC++ software to carry on rogrammng, and to carry on numercal otmzaton rocessng on the teachng content, resdual s calculated as shown n Fgure 3. Fgure 3: Otmal Resdual Plot Through the resdual otmzaton ma, we can see that the tme and the content rato calculaton of basketball teachng latform began to fluctuate, and then to tend to be stable. Fnally, the calculaton of results s shown n Table 3 and n Fgure 4. Table 3: Calculatng The Otmal Results Classroom content Teachng effect Student suort rate Onlne theory teachng before class Network control vdeo classroom demonstraton Onlne after-school answer Onlne basketball test Fgure 4: Calculatng The Otmal Results Through the otmzaton results, we can see that accordng to the requrements of the currculum and the ntenton of students, teachng latform tme and content rato have relatvely large adjustment, n whch the roorton of the teachng vdeo adjusts larger. Because the hyscal educaton currculum s relatvely large of acton mtaton, and f teachers only do t agan acton, 000

5 0 th February 03. Vol. 48 No JATIT & LLS. All rghts reserved. ISSN: E-ISSN: students cannot bear, so n the teachng latform, to ncrease the art of vdeo content and roorton are very realstc requrements. In addton, the after-school answer art s also ncreased, because hyscal educaton teachers and students nteracton are strong, whch s also n lne wth the actual needs of teachng. 4. EXISTING PROBLEMS IN TEACHING PLATFORM After the analyss of the frst art and the second art, t can be seen that the basketball network teachng latform meets the needs of teachng, and can realze the teachng materals and teachers sharng, and however there are also many roblems n the latform [4]. () Seed ssue The network teachng latform s based on the Internet technology, the camus networks are often LAN, a luralty of screen shares a server that s very hgh requrements on seed, esecally vdeo transmsson, f not u to the number of frames transmtted er second, vdeo wll be very card. () Server bearng caacty Network teachng latform s a great test on server, sharng a server between teacher clent and student clent, the server ressure s relatvely large, whch requres data durng rocessng to otmze the use of the data, such as VRML courseware. (3) To evaluate the long-term teachng effect The develoment of teachng effectveness latform s only a short erod of questonnare survey for students, there are not to assess longterm teachng effect, f the basketball teachng latform lays a better teachng effect n the future, to carry out evaluaton of long-term effect on network teachng latform. 5. CONCLUSION Through the multvarate theoretcal model, the establshment of the mathematcal model of basketball network teachng latform tme and content roortonal control, the frst art of the text gves a sketch teachng latform rocess, based on Internet data rocessng technology, to carry out lnkng between the database and the clent, the use of VRML technology develos network latform teachng CAI courseware, to gve the secfc algorthm; the second art of the aer carres out rogrammng calculatons usng VC++ rogrammng software, the teachng latform tme and the roorton of content carry out numercal otmzaton desgn, and obtan the resdual analyss, fnally after the otmzed data and before otmzaton data are comared, to fnd that the art of vdeo teachng and after-school answer are ncreased n the teachng latform desgn, whch s consstent wth the actual basketball classroom. REFERENCES: [] Ran Zhang, "Exloraton and ractce on exermental teachng of comuter network", Journal of cvl avaton flght unversty, Vol. 78, No. 6, , 00. [] Lngzh L, "Teachng scheme of comuter network exerment based on NetSm", Exermental technology and management, Vol. 5, No., , 009. [3] Peyuan Zhao, "Buldng of the vrtual network laboratory based on VMware and Dynamst", Comuter and nformaton technology, Vol. 33, No. 9, , 009. [4] Yanqong Huang, "Exlore for the exermental teachng reform of comuter network course", Comuter educaton, Vol. 6, No.,. 6-63, 009. [5] Z. Fang, J. Lu, Y. Dong, "Facng the network teachng latform constructon on demand about ractcal exloraton", Comuter educaton, Vol. 34, No. 9,. 8-9, 009. [6] X. L. Xe, S. Q. Yu, G. Cheng, e.., "The new develoment of network teachng latform", Educaton research, No. 5,. -3, 009. [7] C. R. Lu, B. Y. Lu, G. Z. Feng, "Network teachng latform n the analyss and desgn of the nteractve module", Journal of Bejng Unversty of osts and telecommuncatons, Vol. 34, No.,. 0-3, 009. [8] H.Y. Yang, L.M. Hou, X.Y. Wang, "The desgn and mlementaton of Intellgent network teachng latform", Modern dstance educaton research, No. 3,. 6-64, 009. [9] S. Radde, L. Gordenko, B. Fretag, "An advanced nteractve language teachng latform", Current develoments n technology-asssted educaton, 006, [0] Yongsheng Wang, Xnrong L, "The camus network and modern dstance hyscal educaton", Journal of sorts adult educaton, Vol. 55, No. 3,. 0-04, 009. [] Huahua Gu, "Gvng full lay to mult-meda functon and advantages to reach sorts teachng otmzaton realm", Currculum, Vol. 0, No.,. -4,

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