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Searching for the minimum exposure path (MEP) is one of the critical issues in wireless sensor networks (WSNs). The exposure corresponding to the MEP is one indicator to measure the coverage quality of a WSN, reflecting how well a mobile target is monitored through the sensing field. The classical methods, such as the grid-based method and the Voronoi-diagram-based method, are not accurate enough...
IEEE1588 is a Precise Time Protocol (PTP), which is of potentially wide application in control and measurement networks. Stamping PTP messages accurately in physical layer taking advantage of hardware circuits, it is one of important key technologies to achieve the object of high precision time synchronization of IEEE1588. This paper analyzes the content of IEEE1588 standard in detail, and proposes...
With the increase of steam turbine's steam parameter and the participation in peak-load adjustment of power grid more and more frequently, the stress of the turbine's rotor is becoming increasingly complex, and the alternating thermal stress has became the major factor reducing its life. This paper used a 600MW supercritical steam turbine's rotor as the research object, and analyzed the variation...
This paper proposes a CDMA-based wireless intelligent control system solutions. Using the SMS services and packet data services provided by CDMA network, through the DTGS-800 modem realize the wireless transmission of data, complete real-time monitoring of distribution systems, lighting systems, electrical equipment operating status of the buildings.
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