scholarly journals Simplifying the Development of Programs for Digital Engine Controllers

1980 ◽  
Author(s):  
D. A. Rutherford
Keyword(s):  
Control Systems ◽  
Control Program ◽  
Engine Control ◽  
Video Display ◽  
Control Programs ◽  
Display Unit ◽  
Control Scheme ◽  
Control Schemes ◽  
High Level ◽  
Video Display Unit

The paper describes a method of simplifying the preparation and development of control programs for microprocessor-based engine control systems. The system described employs a video display unit, VDU, connected to the digital controller. Programs are prepared in a simple high level language tailored to the requirements of engine control schemes. The paper also describes the internal software structure and features that are provided. An example of the procedures used to develop a simple control program illustrates how a user can concentrate on the control scheme rather than on software problems.

Research on Nuclear Safety Video Display Unit Technology Based on Digital Twin

2021 ◽  
Author(s):  
Yanqun Wu ◽  
Yang Zhao ◽  
Mingxing Liu ◽  
Wei Jiang ◽  
Qi Chen ◽  
...  
Keyword(s):  
Nuclear Safety ◽  
Video Display ◽  
Digital Twin ◽  
Display Unit ◽  
Video Display Unit

Training Programs: Towards Transformation of Work Situation

2000 ◽  
Vol 44 (12) ◽  
pp. 2-728-2-731
Author(s):  
Elisabeth Wendelen
Keyword(s):  
Working Conditions ◽  
Training Programs ◽  
Multinational Company ◽  
Video Display ◽  
Work Situation ◽  
Work Analysis ◽  
Display Unit ◽  
Training Programmes ◽  
The Impact ◽  
Video Display Unit

This paper discusses an experience of training in ergonomic work analysis (EWA). Two ergonomists of the National Institute for Research on Working Conditions (INRCT, in French) trained a group of employees in the Brussels plant of a multinational company. This training took place after having checked about fifty VDU (video display unit) workplaces. None of these 50 VDU users was aware of the possibilities of adjusting his or her specific workplace. The manager and the union decided to train one or two persons in each department, to enable them to answer minor questions of their unit's employees relating to adjusting their own workplace. It was agreed that more difficult problems raised by the employees would be transferred to external experts. The paper seeks to analyse the impact of this experience on the VDU workers: are they able to change their working conditions? What exactly did change? To conclude, some conditions necessary for the success of such training programmes are highlighted.

scholarly journals The use of diagnostic radiology to detect shell irregularities in the New Zealand paua (abalone) Haliotis iris

2001 ◽  
Vol 35 (2) ◽  
pp. 167-171 ◽  
Author(s):  
John C. Schofield ◽  
Roseanne M. Grindley ◽  
Jonathan A. Keogh
Keyword(s):  
New Zealand ◽  
Diagnostic Radiology ◽  
Video Display ◽  
Ray Method ◽  
Marine Gastropods ◽  
X Ray ◽  
Non Invasive ◽  
Display Unit ◽  
Non Destructive ◽  
Video Display Unit

A method is described for the non-destructive, non-invasive, detection of shell lesions in the New Zealand paua, a marine gastropod Haliotis iris using diagnostic radiology. The X-ray method reliably detected the presence of shell lesions in 96% of the cases examined once lesion dimensions exceeded 6.2 × 7.1 mm. The extent of lesions above this size can be reliably and accurately determined from X-ray images viewed on a video display unit (VDU). Biofouling on the outside of the shell can cause misdiagnoses. This method is a significant animal welfare refinement in the identification of marine gastropods with shell lesions, when compared with traditional techniques which kill the animals.

scholarly journals Procedure for forming nominal control program of solar sail spacecraft heliocentric movement using locally optimal control laws

2020 ◽  
Vol 4 (1) ◽  
pp. 5-13
Author(s):  
R. M. Khabibullin
Keyword(s):  
Optimal Control ◽  
Control Program ◽  
Solar Sail ◽  
Flight Trajectory ◽  
Control Laws ◽  
Phase Coordinates ◽  
Control Scheme ◽  
Control Schemes ◽  
Efficient Control ◽  
Interplanetary Flight

The paper is devoted to the non-coplanar interplanetary flight Earth-Venus of the spacecraft equipped with a solar sail. The goal of the heliocentric movement is to transfer a spacecraft with a non-perfectly reflecting solar sail into the Hill’s sphere of the Venus with zero hyperbolic excess speed. The magnitude and direction of acceleration is calculated taking into account specular and diffuse reflections, absorption and transmission of photons by the surface of the solar sail. One of the main tasks in the field of navigation and motion control of a spacecraft is the search for a simple energy-efficient control scheme for performing maneuvers during flight. These control schemes are locally optimal control laws, various combinations of which allow you to perform the necessary maneuvers during an interplanetary flight. The procedure for the formation of a control program for a non-coplanar interplanetary flight of the Earth-Venus type of a spacecraft with a non-perfectly reflecting solar sail is described. The results include the flight trajectory, the change in phase coordinates in time, graphs of changes in control angles, and the nominal control program. The obtained results satisfy all the boundary conditions described in the statement of the problem.

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