Abstract

We show the results of a study about the presence of multimedia content in the leading Spanish online newspapers, over a period of six months (October 2009 to March 2010) and describe the search and retrieval systems for these contents. The main conclusions are: unequal presence of photography, video and graphics; stability and no increase in multimedia features for the period of the study, and differences in the quality of multimedia search.

Abstract

This overview introduces and synthesizes some basic concepts of the broad spectrum of information visualization, providing examples with geospatial, relational and textual data from a demanding discipline. The concepts are discussed and the examples illustrate some practices and criteria.

Abstract

This chapter discusses man-machine interface. PLC has to “connect” to human operators, accepting commands from them and displaying the status of the plant in a form that can readily and easily be understood. A digital display driven in BCD normally uses one of the unused binary codes, 1010 to 1111, to generate a blank display. Simple digital inputs (pushbuttons, joysticks, switches) are normally allocated one input per motion and do not require anything particularly special. Concerning PLC with analog signals, flows, temperatures, pressures, etc., these will usually be displayed to the operator. A graphics terminal has just two connections to the outside world, a serial link connection and a power supply. The Allen Bradley Panelview family was designed to replace switches, pushbuttons, numeric displays, and similar devices. The Panelview built up a graphics screen with semigraphic characters placed on a screen with a “pick and place” menu approach. Siemens provides a vast range of operator terminals from simple text-only message displays to complete computer-based Scada systems. One major advantage of graphical displays is that mistakes can be rectified without leaving scars, albeit at some cost. The operator will need to input data and initiate actions. Where a simple text message is to be displayed, possibly with embedded data, message displays driven by a simple serial link carrying ASCII coded characters can be used. PCs have much better graphics capability than the average PLC, so it is not surprising that PCs are increasingly being used as the link between humans and PLC systems. Document type: Part of book or chapter of book

Abstract

The chapter presents a hardware-in-the-loop simulation environment, which is built in such a way that the simulator tends to the real vehicle functions as much as possible. The simulation system contains several components such as an Human Machine Interface (HMI), a high-accuracy validated simulation software operated on a PC and a visual system with real-time graphics. The simulator is equally suitable for educational and research purposes. All the vehicle engineer students use the simulator system during their curriculum, enabling the thorough understanding of modern vehicle functions, thus improving the competence of future generations of engineers. Moreover, the simulator system projects ahead the opportunity of new vehicle research that induces considerable additional scientific results. Document type: Part of book or chapter of book