adr-113: multistatic placement strategy — consolidates 9-tick R6 family into decision matrix (#734)
Amends ADR-029 (RuvSense multistatic). Consolidates the SOTA research
loop's 9-tick R6 family into a single 4-axis decision matrix
(dimension x zone-mode x occupants x cog).
Decision matrix highlights:
- 2D vital-signs cogs: chest-centric, N=5, walls 0.8/1.5 m -> 100%
- 3D vital-signs cogs: chest-centric, N=6, NO ceiling -> 82%
- 2D pose cogs: body, N=5, walls mixed -> 97%
- 3D pose cogs: body, N=7-8, mixed L/M/H -> 65%+
- Person count: body, N=4, walls mixed -> 86%
- Presence only: body, N=3, walls low -> 63%
- Maritime cabin: chest, N=4, low -> 80%+
- Wildlife corridor: linear, N=4, tree-mount -> 70%+
Seven binding rules extracted from R6 family:
1. Ceiling-only mounting fails (R6.2.1)
2. Vertical link diversity wins in 3D (R6.2.1)
3. Anchor heights match target zone heights (R6.2.4)
4. Chest-centric beats body for vital signs (R6.2.3)
5. Multi-subject union is the right target (R6.2.5)
6. N=5 is the consumer recommendation (R6.2.2 + R6.2.5)
7. Avoid placing target zones on LOS line (R6.1)
CLI productisation:
wifi-densepose plan-antennas
--room W H [Z] --target ... --target-mode {body,chest}
--freq-ghz F --n-anchors N --cog NAME
MCP tool:
ruview_placement_recommend(room, targets, cog)
-> {anchors, coverage, rationale}
~360 LOC total for placement-strategy productisation.
Per-cog auto-config (the --cog flag looks up):
- cog-presence: body, 3
- cog-person-count: body, 4
- cog-pose-estimation: body, 5 (2D) / 7 (3D)
- cog-vital-signs / breathing / heart-rate: CHEST, 5/6
- cog-intruder: body, 5
- cog-maritime-watch: chest, 4
- cog-wildlife: linear, 4
The R6 family produced 9 ticks of physics + simulation, each adding
1-2 axes to the placement question. ADR-113 collapses all 9 into a
single decision matrix that a non-physicist installer can use.
Composes:
- R6.2 family (9 ticks) all feed this ADR
- R7 mincut: N >= 4 satisfied for all multi-feature cogs
- R10/R11 wildlife/maritime entries in matrix
- R12 PABS/R12.1: placement coverage = intrusion-detection sensitivity
- R14 V1/V2/V3 all covered
- ADR-029 directly amended
Honest scope:
- Synthetic physics; bench validation pending
- Single room geometry baseline (5x5 + 4x6 m)
- 5 cm pose-tracker noise assumed
- Free-space, no multipath/furniture occlusion
- Greedy + 4-restart search
ADR chain after this tick (loop's 6 new ADRs + 3 existing):
105/106/107/108/109/113 + 100/103/104 = 9 ADRs in the full chain
(privacy + federation + provenance + placement).
Coordination: ticks/tick-31.md, no PROGRESS.md edit.
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