V
Vladimir E. Zyubin
(Originally posted Wed 07/01/1998)
Dear Mr. Shields,
I hope you forgive me for my changes in the original text.
> “A real-time system is a system that controls an ongoing process and delivers its outputs no later than is necessary for effective control.”<
A control system is a system that controls an ongoing process and delivers its outputs no later than is necessary for effective control.
> The question of real-time is virtually 100% dependent on the process. Real time control of the dam gates on a slow moving river may require a response time no faster than an hour; real time control of an annealing furnace may require a response time of 30 seconds; for the control surfaces of a jetliner, maybe a few milliseconds; for a Mach 3 fighter it may be fractions of a millisecond. <
The question of control is virtually 100% dependent on the process. Control of the dam gates on a slow moving river may require a response time no faster than an hour; control of an annealing furnace may require a response time of 30 seconds; for the control surfaces of a jetliner, maybe a few milliseconds; for a Mach 3 fighter it may be fractions of a millisecond.
The intent of the changes is to ask the following questions:
Are there any comments on these variants of the text?
What does the text lose after the changes?
Does it become more informative?
Does it become more foggy?
Thanks,
Vladimir E. Zyubin
Institute of Automation & Electrometry
Novosibirsk Russia
Dear Mr. Shields,
I hope you forgive me for my changes in the original text.
> “A real-time system is a system that controls an ongoing process and delivers its outputs no later than is necessary for effective control.”<
A control system is a system that controls an ongoing process and delivers its outputs no later than is necessary for effective control.
> The question of real-time is virtually 100% dependent on the process. Real time control of the dam gates on a slow moving river may require a response time no faster than an hour; real time control of an annealing furnace may require a response time of 30 seconds; for the control surfaces of a jetliner, maybe a few milliseconds; for a Mach 3 fighter it may be fractions of a millisecond. <
The question of control is virtually 100% dependent on the process. Control of the dam gates on a slow moving river may require a response time no faster than an hour; control of an annealing furnace may require a response time of 30 seconds; for the control surfaces of a jetliner, maybe a few milliseconds; for a Mach 3 fighter it may be fractions of a millisecond.
The intent of the changes is to ask the following questions:
Are there any comments on these variants of the text?
What does the text lose after the changes?
Does it become more informative?
Does it become more foggy?
Thanks,
Vladimir E. Zyubin
Institute of Automation & Electrometry
Novosibirsk Russia