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The application of WSN/ZigBee is growing popularity and how to connect WSN/ZigBee to the present standard network seamlessly is an issue what is worth studying. In this paper, it designs and realizes a ZigBee—Wi-Fi wireless gateway based on STM32W108 RF chip and embedded Wi-Fi module. In ZigBee network, wireless gateway as a sink, it receives data from sensor nodes and interacts with them. In WLAN,...
Monitoring a large-scale wireless sensor networks (WSN) is very difficult, not only because it is large and complex, much of difficulty comes from the lack of visual analysis tools. This paper describes SNDS (Sensor Network Distributed Sniffer), a distributed monitoring and protocol analysis system for large and complex sensor networks. SNDS is based on the use of sniffers co-deployed with the target...
Nowadays the WSN protocol stack based on ZigBee, such as Z-Stack, has a good performance in many respects. Yet there also exists some problems in ZigBee when applied in simple data acquisition applications with limited resources.This paper designs a more suitable WSN protocol stack named Em-Stack, which is compatible with IEEE 802.15.4. Based on the chip CC2430, Em-Stack adopts several key technologies...
With the development of computer application technology, devices interfaces are diversified and it makes application development, update and maintenance more difficult. In this paper, we present a virtual device system architecture hierarchical model that is used to make virtual conversion between different physical interfaces. First we introduced the model in details and a user study with network...
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