Category: CONTROL ROOM DESIGN AND ERGONOMICS

JOB SKILLS

In the modern control room, the operator will generally have some of the follow­ing tasks: 1. Start up/stop the system 2. Control, manoeuvre, and regulate 3. Check, monitor (act only when there is a fault) 4. Keep records and report 5. Repair and maintain 6. Plan, programme, and analyse Different types of skill and knowledge […]

Hearing

The organs of hearing are in certain respects better adapted to receiving signals than are those of sight. This applies particularly to the recognition of complex patterns. Even in the presence of noise and complex sounds from a machine installation, a trained ear can easily detect deviations and diagnose faults. The ability of the ear […]

The EffECTs of Aging

Increasing age brings decrements in various aspects of visual ability. For example, speed accommodation (distance setting) is reduced considerably with age. The eyes of older people therefore become sensitive to light of widely differing wavelengths on the same picture, resulting in an accommodation problem. In addition, the ability to discriminate luminance differences and between colours […]

Colour Vision

Colour is not a physical quantity but a psychological one (see Figure 10.3). Electro­magnetic waves are converted by the eyes and the visual nerve centre, including the visual parts of the brain cortex, and are experienced by humans in different ways. These different experiences are called colour. In the human retina there are thought to […]

Sight and Vision

The most important factors that determine the efficiency of the sense of sight are: 1. Luminance Discrimination—The ability to distinguish differences and variations in brightness. 2. Sharpness—The ability to define and differentiate shapes. 3. Temporal Visual Ability—The ability to distinguish changes and move­ments over time. 4. Depth Discrimination—The ability to judge depth (variation in image […]