FA-93473 / Solar tracker geometry / Member archive

Wind stow with gust and mean triggers: calm count reset · case 03

Rows return to tracking during a gusty period after scattered calm samples.

Member previewVariant 3 · 3 implementations · 7 checks per implementation

Case contract

winds are per-sample speeds. avg is the mean of the last win samples (fewer at the start). Tracking rows enter stow when the sample >= gust_limit or avg >= mean_limit (one entry each time). Stowed rows return to tracking after hold consecutive samples with avg < release; any sample with avg >= release resets the count. Return [modes per sample, stow entries].

Why this case matters

Single-axis and dual-axis solar trackers turn a sun direction into actuator commands; a sign, frame or limit mistake points a whole plant away from the sun or into a mechanical stop.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
boundary: calm interrupted before hold	`[["stow", "stow", "stow", "track", "track", "track"], 1]`	`[["stow", "stow", "stow", "stow", "track", "track"], 1]`	Failed

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