Applications that involve monitoring of water quality parameters require measuring devices to be placed at different geographical locations but are controlled centrally at a remote site. The measuring devices in such applications need to be small, consume low power, and must be capable of local processing tasks facilitating the mobility to span the measuring area in a vast geographic area. This paper presents the design of a generalized, low-cost, reconfigurable, reprogrammable smart sensor node using a ZigBee with a Field-Programmable Gate Array (FPGA) that embeds all processing and communication functionalities based on the IEEE 1451 family of standards. Design of the sensor nodes includes processing and transducer control functionalities in a single core increasing the speedup of processing power due to interprocess communication taking place within the chip itself. Results obtained by measuring the pH value and temperature of water samples verify the performance of the proposed sensor node.
A virtual laboratory application requires sensors to be setup at different geographical locations but controlled centrally at a remote site. The sensors in such applications need to be physically small, consume low power and capable of local processing tasks facilitating mobility to spread the sensor network system in a vast geographic area. In this paper, we present the design of a low-cost smart sensor node developed using a reconfigurable Field-Programmable Gate Array (FPGA) that embeds all processing and communication functionalities based on IEEE 1451 family of standards. The single chip design facilitates increased speedup of processing due to interprocess communication taking place within the chip itself. Results indicate the stability and the performance of the proposed architecture at different baud rates.
A virtual laboratory application setup is used to control and monitor remotely the operation of several sensor nodes placed at different geographical locations. In this paper, we present the design of a generalized, low-cost and reconfigurable smart sensor node using a Zigbee with a Field-Programmable Gate Array (FPGA) that embeds all processing and communication functionalities based on the IEEE 1451 family of standards with communication taking place through a 1-wire protocol. The architecture of the sensor node is based on the single chip concept that includes communication, processing and transducer control functionalities. The proposed architecture reduces the physical size, power and increases speedup of processing due to inter-module communication. Results indicate the accuracy of the proposed system is tested with a temperature sensor which has 1-wire protocol.
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