Stoer-Wagner min-cut on subcarrier correlation graph replaces broken
threshold-based person counting (was always 4, now correct).
Validated: 24/24 windows correctly report 1 person on test data
where old firmware reported 4. Pure JS, <5ms per window.
- mincut-person-counter.js: live UDP + JSONL replay, overrides vitals
- csi-graph-visualizer.js: ASCII spectrum + correlation heatmap
- ADR-075: algorithm, comparison, migration path
Co-Authored-By: claude-flow <ruv@ruv.net>
128→64→8 SNN with STDP online learning — adapts to room in <30s
without labels. Event-driven: 16-160x less compute than FC encoder.
- snn-csi-processor.js: live UDP with ASCII visualization, EWMA
- ADR-073 updated with SNN integration for multi-channel fusion
- Fixed magic number parsing to use ADR-018 format (0xC5110001)
Co-Authored-By: claude-flow <ruv@ruv.net>
Contains GCloud project ID and secret names — not appropriate for
a public repo. Publishing instructions kept in scripts/ only.
Co-Authored-By: claude-flow <ruv@ruv.net>
Clone, copy data via Tailscale, train, benchmark, sync results,
publish to HuggingFace — all automated for M4 Pro hardware.
Co-Authored-By: claude-flow <ruv@ruv.net>
- publish-huggingface.sh: retrieves HF token from GCloud Secrets,
uploads models to ruvnet/wifi-densepose-pretrained
- publish-huggingface.py: Python alternative with --dry-run support
- docs/huggingface/MODEL_CARD.md: beginner-friendly model card with
WiFi sensing explanation, quick start code, hardware BOM, and citation
GCloud Secret: HUGGINGFACE_API_KEY in project cognitum-20260110
Co-Authored-By: claude-flow <ruv@ruv.net>
- #249 (multi-node person counting) fixed by ADR-068 in v0.5.3
- #318 (training plateau) resolved
- Add #348 (n_persons overcount) as current known issue
- Add Cognitum Seed link for spatial resolution improvement
Co-Authored-By: claude-flow <ruv@ruv.net>
* feat(server): cross-node RSSI-weighted feature fusion + benchmarks
Adds fuse_multi_node_features() that combines CSI features across all
active ESP32 nodes using RSSI-based weighting (closer node = higher weight).
Benchmark results (2 ESP32 nodes, 30s, ~1500 frames):
Metric | Baseline | Fusion | Improvement
---------------------|----------|---------|------------
Variance mean | 109.4 | 77.6 | -29% noise
Variance std | 154.1 | 105.4 | -32% stability
Confidence | 0.643 | 0.686 | +7%
Keypoint spread std | 4.5 | 1.3 | -72% jitter
Presence ratio | 93.4% | 94.6% | +1.3pp
Person count still fluctuates near threshold — tracked as known issue.
Verified on real hardware: COM6 (node 1) + COM9 (node 2) on ruv.net.
Co-Authored-By: claude-flow <ruv@ruv.net>
* fix(ui): add client-side lerp smoothing to pose renderer
Keypoints now interpolate between frames (alpha=0.25) instead of
jumping directly to new positions. This eliminates visual jitter
that persists even with server-side EMA smoothing, because the
renderer was drawing every WebSocket frame at full rate.
Applied to skeleton, keypoints, and dense body rendering paths.
Co-Authored-By: claude-flow <ruv@ruv.net>
* feat: DynamicMinCut person separation + UI lerp smoothing
- Added ruvector-mincut dependency to sensing server
- Replaced variance-based person scoring with actual graph min-cut on
subcarrier temporal correlation matrix (Pearson correlation edges,
DynamicMinCut exact max-flow)
- Recalibrated feature scaling for real ESP32 data ranges
- UI: client-side lerp interpolation (alpha=0.25) on keypoint positions
- Dampened procedural animation (noise, stride, extremity jitter)
- Person count thresholds retuned for mincut ratio
Co-Authored-By: claude-flow <ruv@ruv.net>
* docs: update CHANGELOG with v0.5.1-v0.5.3 releases
Co-Authored-By: claude-flow <ruv@ruv.net>
* chore: update vendored ruvector to latest main (v2.1.0-40)
Was at v2.0.5-172 (f8f2c600a), now at v2.1.0-40 (050c3fe6f).
316 commits with new crates: ruvector-coherence, sona, ruvector-core,
ruvector-gnn improvements, and security hardening.
Co-Authored-By: claude-flow <ruv@ruv.net>
* feat: RuVector Phases 2+3 — temporal smoothing, kinematic constraints, coherence gating
Phase 2 (sensing server):
- Temporal keypoint smoothing via EMA (alpha=0.3) with coherence-adaptive blending
- Coherence scoring: running variance of motion_energy over 20 frames
- Low coherence → reduce alpha to 0.1 (trust measurements less)
- Per-node prev_keypoints for frame-to-frame smoothing
- Bone length clamping (±20%) in derive_single_person_pose
Phase 3 (signal crate):
- SkeletonConstraints: Jakobsen relaxation (3 iterations) on 12-bone
COCO-17 kinematic tree — prevents impossible skeletons
- CompressedPoseHistory: two-tier storage (hot f32 + warm i16 quantized)
for trajectory matching and re-ID
- 8 new tests for constraints + history
Vendored ruvector updated to v2.1.0-40 (latest main, 316 commits).
Workspace deps remain at v2.0.4 (crates.io) until v2.1.0 is published.
647 tests pass across both crates (0 failures).
Refs #296
Co-Authored-By: claude-flow <ruv@ruv.net>
* fix(server): use max instead of sum for multi-node person aggregation
With nodes in the same room, each node sees the same people. Summing
per-node counts double-counted (2 nodes × 1 person = 2 persons).
Now uses max() so 2 nodes × 1 person = 1 person.
Verified on real hardware: COM6 (node 1) + COM9 (node 2) on ruv.net,
estimated_persons=1 with 1 person in room.
Co-Authored-By: claude-flow <ruv@ruv.net>
* fix(server): reduce skeleton jitter + raise person count thresholds
- EMA alpha 0.3→0.15, low-coherence 0.1→0.05
- Remove tick-based noise (main jitter source)
- Breathing 5x slower, extremity jitter 3x smaller, stride 2x smaller
- Person count 1→2 threshold 0.65→0.80
- Aggregation sum→max for same-room nodes
Verified on COM6+COM9: 1 person stable.
Co-Authored-By: claude-flow <ruv@ruv.net>
* feat(signal): subcarrier importance weighting via mincut partition (Phase 1)
Adds subcarrier_importance_weights() to ruvector signal crate — converts
mincut partition into per-subcarrier float weights (>1.0 for sensitive,
0.5 for insensitive subcarriers).
Sensing server now uses weighted mean/variance in extract_features_from_frame
instead of treating all 56 subcarriers equally. This emphasizes body-motion-
sensitive subcarriers and reduces noise from static multipath.
Expected: ~26% reduction in keypoint jitter (±15cm → ±11cm RMS).
284 tests pass (191 trainer + 51 lib + 18 vital_signs + 16 dataset + 8 multi_node).
Co-Authored-By: claude-flow <ruv@ruv.net>
* fix(firmware): stack overflow risk + tick-rate independence (review findings)
Critical fixes from deep review:
1. **Stack overflow prevention**: Moved BPM scratch buffers (br_buf, hr_buf)
from stack to static storage in both process_frame() and
update_multi_person_vitals(). Combined stack was ~6.5-7.5 KB of 8 KB
limit — now reduced by ~4 KB to safe margins.
2. **Tick-rate independence**: Post-batch yield now uses
pdMS_TO_TICKS(20) with min-1 guard instead of raw vTaskDelay(2).
Previously assumed 100Hz tick rate.
3. **EDGE_BATCH_LIMIT to header**: Moved from local const to
edge_processing.h #define for configurability.
Firmware builds clean at 843 KB.
Co-Authored-By: claude-flow <ruv@ruv.net>
* fix(server): stale node eviction, remove unsafe pointer (review findings)
Critical fixes from deep review:
1. **Stale node eviction**: node_states HashMap now evicts nodes with no
frame for >60 seconds, every 100 ticks. Prevents unbounded memory
growth and stale smoothing data when nodes are replaced.
2. **Remove unsafe raw pointer**: Replaced the unsafe raw pointer to
adaptive_model (used to break borrow checker deadlock with
node_states) with a safe .clone() before the mutable borrow.
AdaptiveModel derives Clone so this is a clean copy.
284 tests pass, zero failures.
Co-Authored-By: claude-flow <ruv@ruv.net>
The server parsed rssi from buf[14] and noise_floor from buf[15], but
the firmware (csi_collector.c) packs them at buf[16] and buf[17]:
Firmware: n_subcarriers=u16(6-7) freq=u32(8-11) seq=u32(12-15) rssi=i8(16)
Server: n_subcarriers=u8(6) freq=u16(8-9) seq=u32(10-13) rssi=i8(14) ← WRONG
This caused RSSI to read the high byte of the sequence counter instead
of the actual signed RSSI value, producing positive values (e.g., +9)
instead of the correct negative values (e.g., -46 dBm).
Added inline documentation of the frame layout matching csi_collector.c.
Closes#332
- Container: espressif/idf:v5.2 → v5.4 (matches QEMU workflow)
- Replace xxd calls with od (xxd not available in IDF container)
- Add ota_data_initial.bin to artifact upload
- Extend artifact retention to 90 days
The xxd:not-found error was blocking all Firmware CI builds since the
container migration. This unblocks binary artifact generation for
release assets.
Closes#327
Co-Authored-By: claude-flow <ruv@ruv.net>
* docs(adr): ADR-068 per-node state pipeline for multi-node sensing (#249)
Documents the architectural change from single shared state to per-node
HashMap<u8, NodeState> in the sensing server. Includes scaling analysis
(256 nodes < 13 MB), QEMU validation plan, and aggregation strategy.
Also links README hero image to the explainer video.
Co-Authored-By: claude-flow <ruv@ruv.net>
* feat(server): per-node state pipeline for multi-node sensing (ADR-068, #249)
Replaces the single shared state pipeline with per-node HashMap<u8, NodeState>.
Each ESP32 node now gets independent:
- frame_history (temporal analysis)
- smoothed_person_score / prev_person_count
- smoothed_motion / baseline / debounce state
- vital sign detector + smoothing buffers
- RSSI history
Multi-node aggregation:
- Person count = sum of per-node counts for active nodes (seen <10s)
- SensingUpdate.nodes includes all active nodes
- estimated_persons reflects cross-node aggregate
Single-node deployments behave identically (HashMap has one entry).
Simulated data path unchanged for backward compatibility.
Closes#249
Refs #237, #276, #282
Co-Authored-By: claude-flow <ruv@ruv.net>
Documents the architectural change from single shared state to per-node
HashMap<u8, NodeState> in the sensing server. Includes scaling analysis
(256 nodes < 13 MB), QEMU validation plan, and aggregation strategy.
Also links README hero image to the explainer video.
Co-Authored-By: claude-flow <ruv@ruv.net>
List specific known issues (multi-node detection, training plateau,
no pre-trained weights, hardware compatibility) to set expectations
for new users.
Co-Authored-By: claude-flow <ruv@ruv.net>
* fix(firmware,server): watchdog crash on busy LANs + no detection from edge vitals (#321, #323)
**Firmware (#321):** edge_dsp task now batch-limits frame processing to 4
frames before a 10ms yield. On corporate LANs with high CSI frame rates,
the previous 1-tick-per-frame yield wasn't enough to prevent IDLE1
starvation and task watchdog triggers.
**Sensing server (#323):** When ESP32 runs the edge DSP pipeline (Tier 2+),
it sends vitals packets (magic 0xC5110002) instead of raw CSI frames.
Previously, the server broadcast these as raw edge_vitals but never
generated a sensing_update, so the UI showed "connected" but "0 persons".
Now synthesizes a full sensing_update from vitals data including
classification, person count, and pose generation.
Closes#321Closes#323
Co-Authored-By: claude-flow <ruv@ruv.net>
* fix(firmware): address review findings — idle busy-spin and observability
- Fix pdMS_TO_TICKS(5)==0 at 100Hz causing busy-spin in idle path (use
vTaskDelay(1) instead)
- Post-batch yield now 2 ticks (20ms) for genuinely longer pause
- Add s_ring_drops counter to ring_push for diagnosing frame drops
- Expose drop count in periodic vitals log line
Co-Authored-By: claude-flow <ruv@ruv.net>
* fix(server): set breathing_band_power for skeleton animation from vitals
When presence is detected via edge vitals, set breathing_band_power to
0.5 so the UI's torso breathing animation works. Previously hardcoded
to 0.0 which made the skeleton appear static even when breathing rate
was being reported.
Co-Authored-By: claude-flow <ruv@ruv.net>
The README Quick Start tells users to `pip install wifi-densepose` and then
`from wifi_densepose import WiFiDensePose`, but no `wifi_densepose` Python
package existed — only `v1/src`. This adds a top-level `wifi_densepose/`
package with a WiFiDensePose facade class matching the documented API, and
updates pyproject.toml to include it in the distribution.
Closes#314
The source field was set to "esp32" on the first UDP frame but never
reverted when frames stopped arriving. This caused the UI to show
"Real hardware connected" indefinitely after powering off all nodes.
Changes:
- Add last_esp32_frame timestamp to AppStateInner
- Add effective_source() method with 5-second timeout
- Source becomes "esp32:offline" when no frames received within 5s
- Health endpoint shows "degraded" instead of "healthy" when offline
- All 6 status/health/info API endpoints use effective_source()
Fixes#297
Co-authored-by: Reuven <cohen@ruv-mac-mini.local>
The person-count heuristic was causing widespread flickering (#237, #249,
#280, #292) because:
1. Threshold 0.50 for 2-persons was too low — multipath reflections in
small rooms easily exceeded it
2. No actual hysteresis despite the comment claiming asymmetric thresholds
3. EMA smoothing (α=0.15) was too responsive to transient spikes
Changes:
- Raise up-thresholds: 1→2 persons at 0.65 (was 0.50), 2→3 at 0.85 (was 0.80)
- Add true hysteresis with asymmetric down-thresholds: 2→1 at 0.45, 3→2 at 0.70
- Track prev_person_count in SensingState for state-aware transitions
- Increase EMA smoothing to α=0.10 (~2s time constant at 20 Hz)
- Update all 4 call sites (ESP32, Windows WiFi, multi-BSSID, simulated)
Fixes#292, #280, #237
Co-authored-by: Reuven <cohen@ruv-mac-mini.local>
CONFIG_CSI_NODE_ID (compile-time, always 1) was hardcoded in 6
places: CSI frame serialization, compressed frames, vitals packets,
WASM output packets, and display UI. NVS provisioning wrote the
correct node_id but it was never used at runtime.
Fixed all occurrences to use g_nvs_config.node_id:
- csi_collector.c: frame header + log message
- edge_processing.c: compressed frame + vitals packet
- wasm_runtime.c: WASM output packet
- display_ui.c: system info display
This means --node-id 0/1/2 provisioning now actually works for
multi-node mesh deployments.
Closes#279
Co-Authored-By: claude-flow <ruv@ruv.net>
- examples/medical/README.md: full guide for BP estimator,
hardware requirements, sample output, accuracy table, AHA
categories, disclaimer, RuView integration explanation
- README.md: added Medical Examples to documentation table
Co-Authored-By: claude-flow <ruv@ruv.net>
Reads real-time heart rate from MR60BHA2 60 GHz mmWave sensor and
estimates BP trends using HR/HRV correlation model:
- Mean HR → baseline SBP/DBP
- SDNN (HRV) → sympathetic/parasympathetic adjustment
- LF/HF spectral ratio → fine adjustment (with numpy)
- Optional calibration with a real BP reading
Verified on real hardware: 125/83 mmHg estimate from 35 HR samples
over 60 seconds at 84 bpm mean HR with 91ms SDNN.
NOT A MEDICAL DEVICE — research/wellness tracking only.
Co-Authored-By: claude-flow <ruv@ruv.net>
