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I distinctly remember the Wired article that claimed power plants would fail - in an anecdote they said - "Imagine a temperature sensor reading comes in and the
by fred_is_fred 3y ago
I distinctly remember the Wired article that claimed power plants would fail - in an anecdote they said - "Imagine a temperature sensor reading comes in and the system then divides it by the year, the system now sees the temp as infinity and the whole plant shuts down". I read it a few times to make sure I followed and then asked myself, why exactly would you divide the temperate by the last two digits from the year? Wired anyway thought you would do that and it was going to cause massive failure.
- mewpmewp2 3y agoMaybe it wants to measure change of temperature speed to calibrate whether to cool/heat something faster?
- fred_is_fred 3y agoTemp over time makes sense, temp over the last 2 digits of the year?
- emergie 3y agoConsider a system with PID driver that samples temperature every 15-30min. Measures are not 100% regular, so we have to substract dates to calculate time duration between samples. Lets say we got one measure with timestamp 99-12-31 23:50 and second one with 00-01-01 00:15. What will calendar code do if we substract 99-12-31 23:50 from 00-01-01 00:15? Does 00y mean 2000 or 1900? What will the driver do when suddenly temperature differential will change without relation to physical reality?