title: A FPGA embedded web server for remote monitoring and control of smart sensors networks.
abstract: 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.
authors.affiliation: Department of Fundamental and Experimental Electronic, Physics and Systems, Universidad de La Laguna, Avd. Francisco Sanchez s/n, 38203 La Laguna, Spain. emagcas@ull.es.
authors.forename: Eduardo
authors.initials: E
authors.lastname: Magdaleno
authors.affiliation: Department of Fundamental and Experimental Electronic, Physics and Systems, Universidad de La Laguna, Avd. Francisco Sanchez s/n, 38203 La Laguna, Spain. mrvalido@ull.es.
authors.forename: Manuel
authors.initials: M
authors.lastname: Rodríguez
authors.affiliation: Department of Fundamental and Experimental Electronic, Physics and Systems, Universidad de La Laguna, Avd. Francisco Sanchez s/n, 38203 La Laguna, Spain. fdoperez@ull.es.
authors.forename: Fernando
authors.initials: F
authors.lastname: Pérez
authors.affiliation: Department of Fundamental and Experimental Electronic, Physics and Systems, Universidad de La Laguna, Avd. Francisco Sanchez s/n, 38203 La Laguna, Spain. dhernane@ull.es.
authors.forename: David
authors.initials: D
authors.lastname: Hernández
authors.affiliation: Department of Fundamental and Experimental Electronic, Physics and Systems, Universidad de La Laguna, Avd. Francisco Sanchez s/n, 38203 La Laguna, Spain. enrique.jose.garcia.gonzalez@gmail.com.
authors.forename: Enrique
authors.initials: E
authors.lastname: García