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This paper is concerned with a novel localisation method for wireless sensors, immersed within vessels, to monitor process dynamics. The empirical localisation technique is based on Time Difference of Arrival measurements taken on a plane located above the process vessel. Certain properties of the Time Difference of Arrival profiles converted into Distance Difference profiles, are proved mathematically...
This paper presents an improved localisation algorithm that allows estimating the positions of sensors, operating in multipath rich industrial environments. To enhance localisation accuracies, sensors transmit ultra wideband pulses to sets of receiving antennas. The proposed analytical algorithm, gives position estimates through a derivation of closed form solution of sets of non-linear equations...
Most Medium Access Control (MAC) protocols used in wireless sensor networks consider only static nodes. However, there is an increasing interest in sensor network applications where some or all of the nodes are mobile. In this paper, the issue of mobility in sensor networks is addressed, first at a high level, and then in terms of the additional requirements that are placed on the MAC layer by the...
The literature on high-speed Coanda flows and its applications is reviewed. The lack of basic information for design engineers is noted. The present paper is based on an investigation of the aeroacoustics and aerodynamics of the high-speed Coanda flow that is formed when a supersonic jet issues from a radial nozzle and adheres to a tulip-shaped body of revolution. Schlieren and other flow visualization...
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