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Aiming at the mixed use of fieldbus in industry automatic controlling system, the paper proposes a method of multi-functional gateway based on singlechip in order to reach an inter-coordination and compatibility among different protocol standards of fieldbus. Using singlechip as the core of the system ,a proposal of inter-communication among the standard bus interfaces of CAN(Controller Area Network),...
This paper presents the Spin trail to a Message Sequence Chart conversion tool (st2msc) that was developed as an auxiliary tool to a well-known Spin model checker. If the model of the system does not satisfy the specified requirement, Spin outputs the trail that demonstrates the exact execution path of the system, leading to wrong behaviour. The Spin trail is usually very long and, thus, very difficult...
In recent few years, a lot of standards and protocols have been proposed for home networks. However, these standards and protocols do not interconnect easily with each others. This paper describes the service discovery and interaction for home network devices using heterogeneous standards and protocols. OSGi was proposed to provide several kinds of services coming from different providers to be loaded...
IEEE P1900.4 is an emerging standard for optimized radio resource utilization where cognitive radio technologies are used for efficient spectrum utilization. In this paper, we design and implement a cognitive wireless network system based on open documents of IEEE P1900.4, and evaluate its performance using UDP streaming and HTTP download. Our experiments show interesting results that total network...
The increasing ubiquity of mobile embedded systems has been matched by the evolution of a variety of wireless network standards and technologies. The major constraints of wireless embedded systems are limitations of communication bandwidth, processing capabilities, and battery power. Remote wireless embedded systems often act as sensors, which provide data to a certain community. The exchange of data...
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