Computer Hardware, Internet-based Virtual Lab Platform

The virtual laboratory system is the resources of an important experiment teaching in long-distanced education, which provides a kind of experiment environment that can not be restricted by time, location and experiment equipment.According to the shortage and the actuality of the current virtual laboratory, the paper puts forward the design thoughts and total structure of research on computer hardware virtual laboratory platform based on Internet (for short ICHVLP system), and system functions as well as software development project, which attempts to set up a exoteric and collaborative laboratory in network.The paper adopted the two-layered C/S mode to implement ICHVLP system. We selected an object oriented Java language, and choose MS SQL Server database, and adopt JDBC to link the database.The important research of the paper is the design and implementation of virtual components library in handware virtual laboratory system.The object oriented method was applied to the modeling of the virtual components library and virtual device library,which makes the simulation model more independent,expansible, maintainable and dupicable,with adoptting the JavaBeans module technique to design the material objects of virtual components.At the same time,we design the software environment which is used to exploiture the virtual components.The software designers can design the experiment software by oneself according to the component template in the system,which can be increased into the virtual component library in order to enlarge the related experiment equipment.It can simplified the development of the experiment software consumely and increased the efficiency of developing experiment software.At the same time,the paper realized the information sharing of the users in the ICHVLP system according to the modes of dot is to the dot and the multipoint the transport.We adopted Java multithread technique handles the request of serval consumers with the concurrency control and guaranteed the consistency of the share data with the effectiveness.