| At present the knowledge explosion, the education content changes with each new day, the lifelong education has become the modern society the need, the teaching scale and the efficiency urgently awaits to expand, the application modern education technology improves the quality of teaching and the expanded teaching scale is the current education profitable target. Regarding the lifelong education, outside the traditional classroom student population increases greatly, these person of stipulation study place and time, even operational site not fixed (e.g. sales personnels). Moreover, regarding the enrolled student, it has a vacation or goes out also to hope that momentarily obtains with school contacting, these realize under the current education method are more difficult.In order to solve the above problem, emerges as the times require based on the mobile communication and Internet's solution, we call it the motion study (Mobile Learning). The motion study takes the study method which one kind may widely use, in overseas is also very rare. But along with wireless mobile equipment expense's reduction, its popular rate is increasing rapidly, especially in our country is so. Moreover, the mobile communication and computer technology's development has provided the broad development opportunities to mobile equipment's correspondence band width and the computing power. May foresee, the motion study's application prospect is huge, the motion study is the modern education technological development inevitable trend.We may understand the motion study from following several aspects the connotation: First, formally is the migration, namely the learner no longer receives the time, spatial and the wired network limit, may carry on the different demand, the different way study anytime and anywhere. The learning environment is the migration, the study resources and the learner are also the migration.Next, in the content is the interaction. The motion study's technology base is moves the computation technology and the Internet technology, educates the information, the educational resources and the education service transmission is rests on these technologies to realize the two-way exchange. Only then this kind of two-way exchange's pattern can cause"the migration"to be more meaningful, can fuller manifest the motion study the superiority.Finally, realizes in the way is the digit. The motion study is the digitized study which based on the wireless mobile equipment (for example mobile phone, PDA, notebook and so on) carries on, it is develops in the digitized study foundation, is a long-distance study development new stage.However, the present stage carries out the motion study in our country also to have many problems. Although mobile equipment's popular degree extreme high, this has provided the broad space for the motion study's development and the study society's establishment, but the mobile equipment type which, because the people use are many and varied, the function difference is very big, but existing mobile equipment itself data-handling capacity is low, the screen size is small, memory property is bad, the network band width is low, the electric power supply is weak, in addition our country corresponds the fees to be relatively high, these factors seriously restricted our country to move the study the development, does not have one to be able until now true practical, the widespread suitable migration learning system to develop the development and the practical application.The short news is the present domestic universal use one most commonly used mobile communication way, it has the compatibility strongly (mobile equipment universal support), the operation simple and direct, prompt convenient, safe reliable, the expense inexpensive, according to the strip transmission and so on many characteristics, has avoided many disadvantage factors which effectively the current development migration study faces, moreover is suitable in moves under the environment the piece type study, most suits our country national condition, and may the wide range application motion study form.At present is short the news the application to be getting more and more widespread, the short news's transmit mode also not only limits between the handset sends the short news mutually. The short news transmit mode mainly uses on the computer through the handset transmission Chinese short news, this is quite at present suitable in the small project development one method, needs the hardware including a model of handset, provides GSM the MODEM function, as well as corresponding serial port data line or infrared adapter. Uses this method code to be simple, only need is quite familiar to at instruction and the serial port programming may realize, moreover is not high to the hardware demand. This method is flexible, easy to realize, but the speed is relatively slow, is suitable for the small Enterprises and institutions and individual application.In this system must realize is quite on the other hand simple based on the serial port correspondence function, therefore selects the standard serial port correspondence software package to realize the serial port correspondence. Uses development kit development serial port signal procedures and so on when the VC, VB, Delphi uses Microsoft Communications Control(MSComm) which Microsoft Corporation provides to control, but we use Java to carry on the development, therefore we select Java Communications API which Sun Microsystems Corporation provides (to hereafter refer to as JCA). Because in this system, regardless of being the read-write short news examines the handset to use to carry on the establishment to system's corresponding serial port, therefore we have compiled the Port kind, completes to the serial port use. In the Port kind, we have defined the open() member function, used CommPortIdentifier and the SerialPort kind completes serial port's foundation, to open and to carry on the corresponding parameter establishment.This article constructs is a function is perfect based on the short news technology migration learning system, may promote the use in the wide range the learning system. Through the analysis, we divide into the system six functional modules, the student space functional module, the teacher space functional module, the manager space functional module, the short news monitor functional module, the short news intelligence processing functional module and the short news transmission functional module. And the student space functional module is the student and the system interactive contact surface, completes the system to the student role support; The teacher space is the teacher and the student, the system interactive contact surface, completes the system to the teacher role support; The manager space mainly completes the educational administration management and the system maintenance work; The short news monitor functional module uses for real-time to monitor whether to have the short news to arrive, if has, forwards to the short news intelligence processing functional module to carry on processing immediately, thus completes to system short news corresponding; The short news intelligence processing functional module mainly completes to each kind of short news intelligent processing and the distribution; The short news transmission functional module uses for the foreign single shot and the group sends the short news. System's user only needs with the first three modules to carry on alternately, then the three functional module uses for the first three modules to provide the corresponding service, transfers by the first three modules, does not have what relations with the system user. These six modules need to have to do with the backstage database, complete functions and so on data memory, renewal and retrieval.In view of the above situation, this article in the deep research migration study, above the short news communication's foundation, proposed based on the short news technology's migration learning system, designed and has realized based on serial port correspondence short news receiving and dispatching, analyzed and has designed the migration learning system's various functional module, has designed the student short news instruction format, has designed the student instruction real-time monitor processing module, has designed the curriculum administration module, has completed system's architecture design and the functional design, has discussed the key link which and the technology the system realized, and used the Java technology to realize one completely finally based on the short news technology migration learning systemDevelopment.The motion study is the mobile communication technology, the networking and the contemporary education union product, is also the educational technique front development, its promotion and the development will certainly to cause the educational technique and the education method change. The establishment migration learning system, will establish the real sense for the learner the learning environment anytime and anywhere, will be helpful to realization which lifelong studies, is helpful in the study society's establishment. |
