The main reasons for using a large screen system inside a control room include ergonomic aspects to provide a better work environment for the control room operators by the use of equipment to enable people to be more comfortable and have a better overview of all applications and processes. The display of data and information […]
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 […]
Human speech ^ Recognition algorithms ^ Response device
Today, many different types of algorithms can be used to interpret human speech. An important feature of many of these algorithms is that they can learn to recognise the sounds of different voices and accents. In ideal conditions many algorithms can recognise more than 90% of speech. When situations are less than ideal—for example, in […]
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 […]
VDU Screen and Background Requirements
The technical requirements for a colour screen are considerably greater than for an ordinary monochrome VDU screen. One must, for example, set considerably greater demands on sharpness of edges and the ability of the ‘guns’ to send their rays to the correct place at the edges and corners of the screen, so that no convergence […]
Colour Screen Character and Symbol Design
It is fairly clear that the requirements will be far more stringent for the design of characters and symbols on a colour screen than for those on a monochrome display with a dark background and light text. Research has shown that colour sensitivity increases as the colour field increases in angle, up to 10 minutes […]
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 […]