Web-Enabled Remote Scientific Environments

Abstract

CopubliShed by the ieee CS and the aip W e b -B a s e d I n t e r a c t i o n W eb-enabled technologies and applications for control engineering are important research topics for many institutions and companies. This interest in exploring new methods for remote experimentation, diagnostics, and maintenance in engineering stems from two fundamental breakthroughs: the introduction of Internet-enabled supervision mechanisms for industrial and didactical processes to offer competitive access to distant resources, 1-3 and innovative new technologies in curricula and renovated training programs. 4,5 Web-based control environment deployment benefits both end users and developers (process control engineers, teaching staff, and so on). However, developers face extra work when transforming an existing local system into a Webbased environment-they know how to manage hardware and software in a local control system, but new problems arise when making the system accessible via the Internet. In particular, developers must create interactive GUIs for the system that can be deployed via the Internet in the form of a Java applet-the simplest way to integrate interactive user interfaces for remote supervision into Web-based learning-management systems.Labview's virtual instrument (VI) is a graphical programming language specifically designed for developing instrumentation, diagnostics, and data acquisition systems. Many engineering and scientific disciplines, both professional and academic, have adopted Labview, which has resulted in a broad collection of libraries and legacy code, most of them working in local control systems. Publishing a Labview VI on the Internet is a longstanding, click-and-share feature of this software. 6 However, a simple mechanism isn't yet in place to make the VI variables (controls and indicators) accessible from Java applets. This requirement poses an important setback for developers who want to transform existing Labview-based local control systems into Web-based ones.In this article, we present a new approach for quick and simple creation of Web-enabled control environments that use Labview on the local side, Java applets on the remote client side, and TCP/IP

Virtual and Remote Robotic Laboratory Using EJS, MATLAB and LabVIEW

“…Hardware components are the robot, the cameras for the robot positioning, the IP Webcam and the computers that host the server. On the other hand, software pieces are: the MATLAB server that executes the student code, hardware controllers for each element of the laboratory, Jil Server [19] that communicates LabVIEW with Java clients, UNEDLabs server that hosts the course, and the booking system.…”

A Mobile Robots Experimental Environment with Event-Based Wireless Communication

“…For this reason, it is necessary to use an application developed in Java to send the data to each corresponding robot using the gateway. In this case, the JIL Server application [28] (block 11 of Figure 1) is used as interface between the camera application and the EJS Robots App (block 9 of Figure 1). This latter application sends the position and orientation to the robots by using XBee-Java-API (block 10 of Figure 1).…”

Integración de dispositivos físicos en un laboratorio remoto de control mediante diferentes plataformas: Labview, Matlab y C/C++

“…El enlace entre Matlab y el entorno desarrollado en EJS se realiza a través de un servidor dedicado a tal efecto que se ha denominado JimServer (Vargas et al, 2009). En la figura 2 se observa el esquema de comunicaciones que se ha desarrollado.…”