Key Technologies In Virtual Laboratory Based On Components

With the fast development of computer science and softwaredevelopment technology, remote education as a new education mode hasalready been more and more widely used. A new education method,building virtual laboratory, has been proposed in remote education field inrecent years. By use the component composition technology, we designand implement the virtual laboratory based on components, which makethe system extendable, reusable and robust.By analyzing and summarizing the characteristics and shortages ofthe existing virtual laboratory, we research deeply on the system'sreflection from three aspects such as modifying the system's parameters,extracting the Bean's inner information and extending the componentslibrary by using the technologies of reflection and XML. Using thetechnology of multithread, we propose an operation mechanism of triggerand self-scheduling management with detailed description of designingand realization. The mechanism is suitable for scheduling during theprocess of computer hardware experiments, which is stochastic, complex,concurrent and sequencial, and have provided theory guiding andtechnological innovation for designing and implementing the computerhardware system virtual laboratory. Finally, combining with technologiesof SWING and AWT, we have also done some research on thevisualization of the system. These key technologies propose effective andworkable way to improve the system's self-check ability, to make theoperation mechanism suitable for the complication system and to improvethe visualization of the system, making the platform more suitable, robustand powerful.Finally, the paper sums up our work during the design anddevelopment, and discusses how to improve the system in the future.