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Cake day: July 3rd, 2023

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  • BilboBargains@lemmy.worldtoMicroblog Memes@lemmy.worldoddly specific
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    4 days ago

    I remember being puzzled by this and many other numbers that kept cropping up. 32, 64, 128, 256, 1024, 2048… Why do programmers and electronic engineers hate round numbers? The other set of numbers that was mysterious was timber and sheet materials. They cut them to 1220 x 2440mm and thicknesses of 18 and 25mm. Are programmers and the timber merchants part of some diabolical conspiracy?

















  • That’s generally true for most HVAC applications. Bang-bang control creates limit cycle behaviour and as long as a small oscillation in temperature is acceptable, it’s a nice simple solution.

    OPs problem seems to be a discontinuity between the two limit cycles, heating and cooling. The way to tackle this is to make time series vectors of all measurements and compare them with the subjective sensation of the room temperature. That should inform the relevant set points for the control actions.