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In this paper, the configuration characteristic of the safe parameter measurement and alarm system used in a new type mine is introduced. The system is made up of wire communication and radio communication with a topological structure. Then, it respectively introduces the hardware and software construction, the working principle and the method of design, which makes the enhanced single chip microcomputer...
This paper presents a method of monitoring the condition of hydraulic electromagnetism valves based on wireless sensor system. In this method low power, low cost, high integrated wireless sensor nodes, using JN5139-000-M00 module as their main component, were designed, which set up a star topology network based on IEEE805.15.4, which then real-time wireless test and display the vibration and magnetism...
Most efforts at analyzing the behavior and performance of sensor network software have been simulation-based, but deployment in the field can bring about conditions that were unexpected, or just too hard to simulate. Thus monitoring the software in the field would be a valuable capability for engineering of sensor networks. We have developed a lightweight instrumentation tool for TinyOS, called LlMOW,...
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