The design and the implementation of Remote Control in digital voice classrooms system
Abstract
Computer remote control has been very widely and important used. This paper mainly introduces the design and the implementation of Remote Control in digital voice classrooms system. The system design will provide a convenient and reliable command control mechanisms and command transmission scheme.
In the command control mechanism design, we will discuss and analyze the command coding, the design of command package, command encapsulation and command package parsing, rules on the registration of command objects, the architecture of command-control mechanism and the flow of command implementation.In command transmission design,on the basis of multicast, we will introduce and analyse the command channel and the data channel of network transmission ,the sending and the monitoring of command, multicast address management and the implement of grouping, and how to use multicast to achieve safe and reliable data transmission. Before introducing the transmission mechanism design, we will introduce some knowledge about multicast technology in detail first,such as multicast group,the implement of multicast,some protocols relate to multicast,the applications of multicast and so on.
Key words: command coding, command parsing, multicast, unicast, multicast group