arsen 5eac273630 fix(mmwave): override distance to "<70 cm" in radar near-field ... HLK-LD2402's antenna near-zone (0–70 cm) is a dead spot for its internal distance algorithm: gate-0 micromotion energy collapses to zero, and the firmware falls back to a sidelobe pick that lands at 1.5–2 m. Operator sitting 40 cm away saw "180 cm" jumping ±10 cm. Detect the near-field state from the gate snapshot: motion[0] > 5k AND motion[0] >= peak_motion_mid AND micro[0] < 3k Debounce across the last 6 frames (≈1 s) so a single jittery frame doesn't toggle the UI — gate energies swing 5–30k frame-to-frame when the target is breathing right against the module. When the flag is set, the distance pill renders "<70 cm" with a tooltip explaining that vitals are unreliable at this range; the recommended sweet-spot is 0.7–2 m. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>		2026-05-18 18:49:45 +07:00
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raw.html	fix(mmwave): override distance to "<70 cm" in radar near-field	2026-05-18 18:49:45 +07:00