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Firefighters are typically exposed to dangerous environments where a sense of vision, auditory, and direction is blocked by smoke, dusts, or flame. Some environments are even "infra-less"; power and communication infra is destroyed. Any commands and signals from outside are unavailable, so recognizing directions and making decisions are usually difficult. To protect and save lives of firefighters,...
ISO/IEC 18000-6REV1 defines new protocols supporting a battery assisted passive (BAP) RFID sensor tag which is compatible with EPCglobal Class-1 Generation-2 specification. In this paper, we developed a RFID reader system supporting a BAP RFID sensor tag using a field programmable gate array (FPGA) and implemented sensing data processing function in embedded linux platform. The receiving block of...
In this paper, we analyze the ISO/IEC 18000-7 active RFID system. In order to improve the coverage in sensor networks, which includes a large number of active RFID tags, we propose RFID multi-hop relay system using active RFID relay tags. To compare the performance of the existing ISO/IEC 18000-7 with that of the proposed RFID multi-hop relay system, we introduce new system efficiency and sensitivity-based...
ISO/IEC 24753 defines new modem specifications for long-range RFID communications and application protocol for sensor tag system. According to the ISO/IEC 24753, the frequency offset of the tag is 4%. In this paper, we designed a non-coherent receiver structure to solve the frequency offset problem. A frequency estimation block was designed to mitigate the effects of 4% frequency offset and a start...
The Advanced TCA is a relatively new open industry specification for building high-performance telecommunications and data communications systems. In this paper, we propose a cost effective EPON blade based on ATCA system which can provide support for multi-protocol interfaces at rates as high as 40 Gbps. ATCA system also provides high levels of modularity and configurability, allowing a range of...
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