The Communication And Scheduling Technology Research In The Net-based Virtual Laboratory

The communication and management is an important issue in constructing a net-based virtual laboratory. In the virtual laboratory, the communication between all kinds of data needs a good mechanism and the scheduling management makes the system work orderly and efficiently. Therefore, the research on these has a broad application value.Firstly, the article has analyzed the design principle, functionalities and design goals of the virtual lab, also designed the overall construction of the virtual lab system and has assorted the detailed system function module; Secondly, the article has compared with good and bad points of the existing communication mode, message transfer mode, data distributing mode and communication mechanism, and the peer to peer net knowledge was studied in theory; Thirdly, the article has analyzed the server structure, designed the scheduling management and described the fault-tolerance technology in brief. Finally, the article has analyzed and designed the data package type in all kinds of the situation, and the method to transmit and receive the data package and has implemented the basic functional program in net communication and two kinds of types messages transmission.This designed communication module and management method in article can meet the basic communication requirements of the net-based virtual lab and has certain academic value and practical value.