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This paper proposes two methods for dispatching sensors to gather data in the rechargeable wireless mobile sensor networks. Several anchoring locations are planned for sensors to collect data. A recharging dock is installed in the region of interest to restore the energy of sensors. After sensors are deployed randomly, they move to anchoring locations and collect data. In the first method, multiple...
A critical aspect of applications in Wireless Sensor Networks (WSNs) is network lifetime. Power-constrained WSNs are usable as long as they can communicate sensed data to a processing node. Poor communication links and hazard environment make the WSNs unreliable. The existing schemes only consider that the state of a sensor covering targets is in binary mode: success (cover the targets) or fail (cannot...
The river remote monitoring system in China is manual data collection, the disperse monitoring stations and the lag data transmission. The statistic showed that 90% reach through the city was polluted and 70% lake was eutrophied. So in this paper the Wireless Sensor Network (WSN) in the Monitoring of Fushun Reach Water Quality was studied, which involve the confirmation of polluted sources, Network...
Wireless sensor networks can be used for event warning applications. Till date, in most of the proposed schemes, the raw or aggregated sensed data are periodically sent to a data consuming center. However, with those schemes, the occurrence of an emergency event such as a fire is hardly reported timely, which is a strict requirement for event warning applications. In wireless sensor networks, it is...
An advanced control system used in assisted circulation apparatus of artificial liver support system was developed based on embedded platform and field bus. This system consisted of a cardiopulmonary bypass-controlling system, a blood circulation and reactors status-monitoring system, and a human-machine interface and communication system. Multiple functions are implemented such as on-line monitoring,...
This paper proposes a framework which supports dynamic handoff decision strategy (DHDS) and software agent (SA) for highly overlapping wireless networks. SA can dynamically download SA from local mobility strategy server to mobile node, and hence adapt the handoff decision to local environment and situations. In our experiment, a comprehensive comparison has been conducted to show that the proposed...
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