Category: CONTROL ROOM DESIGN AND ERGONOMICS

APPLICATIONS FOR LARGE SCREEN SYSTEMS IN CONTROL ROOMS

Companies in various industry sectors are using large screen systems in their control rooms, where the display of process data in real time is of critical importance. Thus this technology is used by a range of process industries such as energy exploration, production, distribution, and waste disposal (for example, sewerage works, water­works, power plants, oil […]

Design of Large and Complex Display Systems

Eric H§nique, Soeren Lindegaard, and Brian Hunt CONTENTS 4.1 Introduction………………………………………………………………………………………………. 84 4.2 Applications for Large Screen Systems in Control Rooms………………………… 86 4.3 Why Use Large Screens in Control Rooms?………………………………………………. 87 4.3.1 Defining Requirements………………………………………………………………….. 88 4.3.2 Visualised Information…………………………………………………………………. 89 4.4 Basics of Viewing and Seeing……………………………………………………………………. 89 4.4.1 The Human Eye…………………………………………………………………………….. 89 4.4.2 Contrast………………………………………………………………………………………… 91 4.4.3 Colours………………………………………………………………………………………….. […]

Message generator ^ Transformation of message codes to acoustic. imitation voice ^ Human listener

Many factors contribute to the operational intelligibility of speech. Simpson et al. (1985) proposed a model for operation intelligibility (Figure 3.16). It is important to note that intelligibility and the characteristics of human speech are not necessar­ily correlated. A radio announcer may sound natural despite a background of static noise but may have low intelligibility […]

SPEECH RECOGNITION AND SPEECH GENERATION

Language is probably the most distinguishable ability that mankind possesses. Human/machine systems have long included written language (for example, in alphanumeric displays and keyboards), but spoken language has mainly been used for communication between people. Over the past few decades, automatic speech generation and recognition by machine now offers a possible alternative to other forms […]

Choice of Colours

A number of general ergonomic rules pertaining to absolute discrimination indicate that for recognising and naming a colour, a maximum of about seven colours is desirable. When it comes to seeing the difference between colours, many different colours and shades can be distinguished, probably well over twenty. Research on colour screens has shown, however, that […]

USING COLOUR

First, it is necessary to define what is meant by colour, as various colour classifica­tion methods exist. Probably the best-known colour classification system is the CIE TABLE 3.3 Number of Recognisable Units of Different Stimuli stimuli Maximum recommended notes Colours: Lamps 10 3 Good Surfaces 50 9 Good Design: Letters and numbers ^0 ? Geometrical […]