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A Self-Timed Multipurpose Delay Sensor for Field Programmable Gate Arrays (FPGAs)
Sensors 2014, 14(1), 416-430; doi:10.3390/s140100416

A FPGA Embedded Web Server for Remote Monitoring and Control of Smart Sensors Networks

1,* , 1
Received: 21 October 2013 / Revised: 26 November 2013 / Accepted: 20 December 2013 / Published: 27 December 2013
(This article belongs to the Special Issue State-of-the-Art Sensors Technology in Spain 2013)
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This article describes the implementation of a web server using an embedded Altera NIOS II IP core, a general purpose and configurable RISC processor which is embedded in a Cyclone FPGA. The processor uses the μCLinux operating system to support a Boa web server of dynamic pages using Common Gateway Interface (CGI). The FPGA is configured to act like the master node of a network, and also to control and monitor a network of smart sensors or instruments. In order to develop a totally functional system, the FPGA also includes an implementation of the time-triggered protocol (TTP/A). Thus, the implemented master node has two interfaces, the webserver that acts as an Internet interface and the other to control the network. This protocol is widely used to connecting smart sensors and actuators and microsystems in embedded real-time systems in different application domains, e.g., industrial, automotive, domotic, etc., although this protocol can be easily replaced by any other because of the inherent characteristics of the FPGA-based technology.
Keywords: embedded web server; FPGA; remote monitoring; NIOS; TTP/A embedded web server; FPGA; remote monitoring; NIOS; TTP/A
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Magdaleno, E.; Rodríguez, M.; Pérez, F.; Hernández, D.; García, E. A FPGA Embedded Web Server for Remote Monitoring and Control of Smart Sensors Networks. Sensors 2014, 14, 416-430.

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