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The paper aims to design video wireless sensor nodes based on IEEE 802.11 communication protocols, using SPI interfaces on the connection of the WIFI communication module and the host controller for data exchange because of the fact that there exist limitations in terms of the display of live video images due to Zigbee transmission rate limit. In addition, the video wireless WIFI sensor node also...
Wireless Multimedia Sensor Networks (WMSN) has been one challenge category of special wireless sensor networks. Different-view videos captured by cameras in various different locations are typical multi-view videos. In order to reduce transmission quantity and conserve nodes' energy, traditional multi-view video coding approaches are long suitable for WMSN. In this paper, we propose a multi-view video...
As the human pays more and more attention to the exploration of marine resources, the marine activities show diversity. At the aspect of the exploration of some uncharted and potentially dangerous waters or islands, the marine low altitude surveillance UAV (unmanned aerial vehicle) is obviously very important. As a tool to obtain first-hand information, UAV can take off near the monitored area. Carrying...
In this paper, the key technologies of web server based on embedded light-weight TCP/IP Protocol uIP and high-performance processor STM32 are mainly introduced. This system provides a transparent channel for massive and high-speed data transmission in controlling the mainstream RS-232 device and data acquisition system. For the need of overcoming the contraction of the high-time sequence and none-interruption...
Automatic target recognition in the atrocious oceanic situation is one of the most difficult areas in oceanic technology. Underwater target recognition based on oceanic sensor networks has been a brand-new research direction. This paper investigates how to use data fusion function of multi-sensor of oceanic sensor networks, and multiple sensors cooperate to fuse different characters taken by radiation...
With the rapid growth of wireless networks, wireless multimedia services are expected to be widely deployed in the near future. But wireless multimedia delivery is facing numerous challenges, e.g., in a dynamic and error-prone wireless environment, the packet drop rates are extremely high because lossy wireless channels are variable and unpredictable. For high bit rates multimedia transfer over wireless...
In this paper, we present a Multi-QoS Optimization distributed Topology Control (MQOTC) algorithm for WSNs. Energy consumption, reliability and QoS provisioning are three key objectives in WSNs. In MQOTC algorithm, each sensor node independently builds its local maximum QoS topology according to the local information collected from its one-hop neighbors using MST (minimum spanning tree) scheme, therefore...
In this paper, a novel cross-layer QoS optimization design framework for WSNs has been proposed. Cross-layer QoS optimization design refers to protocol design done by actively exploiting the dependence between different layers to obtain performance optimization. Instead of treating a layer as a completely independent functional entity, certain information can be shared among different layers with...
Wireless Ad Hoc Sensor Networks (WSNs) have received considerable academia research attention at present. The energy-constraint sensor nodes in WSNs operate on limited batteries, so it is a very important issue to use energy efficiently and reduce power consumption. To maximize the network lifetime, it is essential to prolong each individual node’s lifetime through minimizing the transmission energy...
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