Files
rUv 872d7593bb fix: IDF v6.0 ESP-NOW callback compat (#944) + occupancy noise-floor anchor (#942) (#945)
* fix(firmware): on_send ESP-NOW callback compat for IDF v6.0 (closes #944)

ESP-IDF v6.0 changed `esp_now_send_cb_t` from
  void (*)(const uint8_t *mac, esp_now_send_status_t status)
to
  void (*)(const esp_now_send_info_t *tx_info, esp_now_send_status_t status)

The C6 sync ESP-NOW path's `on_recv` was already version-guarded with
`#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 0, 0)` (lines 102-112)
but the `on_send` sibling missed the equivalent guard. CI runs against
IDF v5.4 so the regression slipped through; the reporter on IDF v6.0.1
with xtensa-esp-elf esp-15.2.0_20251204 hit:

  c6_sync_espnow.c:182:30: error: passing argument 1 of
  'esp_now_register_send_cb' from incompatible pointer type
  [-Wincompatible-pointer-types]

Fix: mirror the recv guard with `#if ESP_IDF_VERSION_MAJOR >= 6` since
the send-callback signature change happened at IDF v6.0 (not v5.x like
the recv-callback). Both branches ignore the address-side argument
since `on_send` only inspects `status` to bump the TX-fail counter.

Adds `#include "esp_idf_version.h"` so the macro is in scope.

Closes #944

Co-Authored-By: claude-flow <ruv@ruv.net>

* fix(signal): anchor estimate_occupancy noise floor to calibration (closes #942)

`test_estimate_occupancy_noise_only` asserts that 20 noise-only frames
fed through a 50-frame calibrated `FieldModel` yield 0 occupancy.
Failure reported on the upstream Linux + BLAS build.

Root cause

Calibration and estimation each compute their own Marcenko-Pastur
threshold:

  threshold = noise_var · (1 + sqrt(p / N))²

with `noise_var` = median of the bottom half of positive eigenvalues
from their own covariance. The MP ratio differs across the two phases:

  calibration  (50 frames, p=8): ratio = 0.16, factor ≈ 1.96
  estimation   (20 frames, p=8): ratio = 0.40, factor ≈ 2.66

On a small estimation window the local `noise_var` estimate can also
be smaller than the calibration's (fewer samples → bottom-half median
hits lower-magnitude eigenvalues). The combination of a smaller
noise_var on estimation and the larger MP factor can flip eigenvalues
on/off the "significant" line in a sample-size-dependent way, so an
identical-distribution test window scores `significant >
baseline_eigenvalue_count` and reports phantom persons.

Fix

Persist the calibration `noise_var` on `FieldNormalMode` (new field
`baseline_noise_var: f64`) and use `max(local_noise_var,
baseline_noise_var)` as the noise floor inside `estimate_occupancy`.
This anchors the threshold to the calibration scale and prevents the
short-window collapse without changing behavior when the local
window's own noise dominates (the real-motion case).

`baseline_noise_var` defaults to 0.0 in the diagonal-fallback paths;
the estimation code treats 0.0 as "no anchored floor available" and
preserves the pre-#942 single-window behavior — so older `FieldNormalMode`
instances deserialised from disk continue to work unchanged.

Test results

  cargo test --workspace --no-default-features
  → 413 lib tests pass (signal crate), 0 fail, 1 ignored.

The actual `eigenvalue`-gated test still requires BLAS (not buildable
on Windows). Logic-trace via the four numerical anchors above shows
the fix flips `noise_var` from the smaller local value back up to the
calibration scale, dropping `significant` to or below
`baseline_eigenvalue_count` so the saturating subtraction returns 0.

Closes #942

Co-Authored-By: claude-flow <ruv@ruv.net>
2026-06-04 08:17:37 +02:00
..

WiFi-DensePose Rust Crates

License: MIT OR Apache-2.0 Rust 1.85+ Workspace RuVector v2.0.4 Tests

See through walls with WiFi. No cameras. No wearables. Just radio waves.

A modular Rust workspace for WiFi-based human pose estimation, vital sign monitoring, and disaster response using Channel State Information (CSI). Built on RuVector graph algorithms and the WiFi-DensePose research platform by rUv.


Performance

Operation Python v1 Rust v2 Speedup
CSI Preprocessing ~5 ms 5.19 us ~1000x
Phase Sanitization ~3 ms 3.84 us ~780x
Feature Extraction ~8 ms 9.03 us ~890x
Motion Detection ~1 ms 186 ns ~5400x
Full Pipeline ~15 ms 18.47 us ~810x
Vital Signs N/A 86 us (11,665 fps) --

Crate Overview

Core Foundation

Crate Description crates.io
wifi-densepose-core Types, traits, and utilities (CsiFrame, PoseEstimate, SignalProcessor) crates.io
wifi-densepose-config Configuration management (env, TOML, YAML) crates.io
wifi-densepose-db Database persistence (PostgreSQL, SQLite, Redis) crates.io

Signal Processing & Sensing

Crate Description RuVector Integration crates.io
wifi-densepose-signal SOTA CSI signal processing (6 algorithms from SpotFi, FarSense, Widar 3.0) ruvector-mincut, ruvector-attn-mincut, ruvector-attention, ruvector-solver crates.io
wifi-densepose-vitals Vital sign extraction: breathing (6-30 BPM) and heart rate (40-120 BPM) -- crates.io
wifi-densepose-wifiscan Multi-BSSID WiFi scanning for Windows-enhanced sensing -- crates.io

Neural Network & Training

Crate Description RuVector Integration crates.io
wifi-densepose-nn Multi-backend inference (ONNX, PyTorch, Candle) with DensePose head (24 body parts) -- crates.io
wifi-densepose-train Training pipeline with MM-Fi dataset, 114->56 subcarrier interpolation All 5 crates crates.io

Disaster Response

Crate Description RuVector Integration crates.io
wifi-densepose-mat Mass Casualty Assessment Tool -- survivor detection, triage, multi-AP localization ruvector-solver, ruvector-temporal-tensor crates.io

Hardware & Deployment

Crate Description crates.io
wifi-densepose-hardware ESP32, Intel 5300, Atheros CSI sensor interfaces (pure Rust, no FFI) crates.io
wifi-densepose-wasm WebAssembly bindings for browser-based disaster dashboard crates.io
wifi-densepose-sensing-server Axum server: ESP32 UDP ingestion, WebSocket broadcast, sensing UI crates.io

Applications

Crate Description crates.io
wifi-densepose-api REST + WebSocket API layer crates.io
wifi-densepose-cli Command-line tool for MAT disaster scanning crates.io

Architecture

                          wifi-densepose-core
                         (types, traits, errors)
                                  |
              +-------------------+-------------------+
              |                   |                   |
    wifi-densepose-signal   wifi-densepose-nn   wifi-densepose-hardware
    (CSI processing)        (inference)         (ESP32, Intel 5300)
    + ruvector-mincut       + ONNX Runtime          |
    + ruvector-attn-mincut  + PyTorch (tch)   wifi-densepose-vitals
    + ruvector-attention    + Candle          (breathing, heart rate)
    + ruvector-solver            |
              |                  |             wifi-densepose-wifiscan
              +--------+---------+            (BSSID scanning)
                       |
          +------------+------------+
          |                         |
  wifi-densepose-train    wifi-densepose-mat
  (training pipeline)     (disaster response)
  + ALL 5 ruvector        + ruvector-solver
                          + ruvector-temporal-tensor
                                |
              +-----------------+-----------------+
              |                 |                 |
    wifi-densepose-api  wifi-densepose-wasm  wifi-densepose-cli
    (REST/WS)           (browser WASM)       (CLI tool)
              |
    wifi-densepose-sensing-server
    (Axum + WebSocket)

RuVector Integration

All RuVector crates at v2.0.4 from crates.io:

RuVector Crate Used In Purpose
ruvector-mincut signal, train Dynamic min-cut for subcarrier selection & person matching
ruvector-attn-mincut signal, train Attention-weighted min-cut for antenna gating & spectrograms
ruvector-temporal-tensor train, mat Tiered temporal compression (4-10x memory reduction)
ruvector-solver signal, train, mat Sparse Neumann solver for interpolation & triangulation
ruvector-attention signal, train Scaled dot-product attention for spatial features & BVP

Signal Processing Algorithms

Six state-of-the-art algorithms implemented in wifi-densepose-signal:

Algorithm Paper Year Module
Conjugate Multiplication SpotFi (SIGCOMM) 2015 csi_ratio.rs
Hampel Filter WiGest 2015 hampel.rs
Fresnel Zone Model FarSense (MobiCom) 2019 fresnel.rs
CSI Spectrogram Standard STFT 2018+ spectrogram.rs
Subcarrier Selection WiDance (MobiCom) 2017 subcarrier_selection.rs
Body Velocity Profile Widar 3.0 (MobiSys) 2019 bvp.rs

Quick Start

As a Library

use wifi_densepose_core::{CsiFrame, CsiMetadata, SignalProcessor};
use wifi_densepose_signal::{CsiProcessor, CsiProcessorConfig};

// Configure the CSI processor
let config = CsiProcessorConfig::default();
let processor = CsiProcessor::new(config);

// Process a CSI frame
let frame = CsiFrame { /* ... */ };
let processed = processor.process(&frame)?;

Vital Sign Monitoring

use wifi_densepose_vitals::{
    CsiVitalPreprocessor, BreathingExtractor, HeartRateExtractor,
    VitalAnomalyDetector,
};

let mut preprocessor = CsiVitalPreprocessor::new(56); // 56 subcarriers
let mut breathing = BreathingExtractor::new(100.0);    // 100 Hz sample rate
let mut heartrate = HeartRateExtractor::new(100.0);

// Feed CSI frames and extract vitals
for frame in csi_stream {
    let residuals = preprocessor.update(&frame.amplitudes);
    if let Some(bpm) = breathing.push_residuals(&residuals) {
        println!("Breathing: {:.1} BPM", bpm);
    }
}

Disaster Response (MAT)

use wifi_densepose_mat::{DisasterResponse, DisasterConfig, DisasterType};

let config = DisasterConfig {
    disaster_type: DisasterType::Earthquake,
    max_scan_zones: 16,
    ..Default::default()
};

let mut responder = DisasterResponse::new(config);
responder.add_scan_zone(zone)?;
responder.start_continuous_scan().await?;

Hardware (ESP32)

use wifi_densepose_hardware::{Esp32CsiParser, CsiFrame};

let parser = Esp32CsiParser::new();
let raw_bytes: &[u8] = /* UDP packet from ESP32 */;
let frame: CsiFrame = parser.parse(raw_bytes)?;
println!("RSSI: {} dBm, {} subcarriers", frame.metadata.rssi, frame.subcarriers.len());

Training

# Check training crate (no GPU needed)
cargo check -p wifi-densepose-train --no-default-features

# Run training with GPU (requires tch/libtorch)
cargo run -p wifi-densepose-train --features tch-backend --bin train -- \
    --config training.toml --dataset /path/to/mmfi

# Verify deterministic training proof
cargo run -p wifi-densepose-train --features tch-backend --bin verify-training

Building

# Clone the repository
git clone https://github.com/ruvnet/wifi-densepose.git
cd wifi-densepose/v2

# Check workspace (no GPU dependencies)
cargo check --workspace --no-default-features

# Run all tests
cargo test --workspace --no-default-features

# Build release
cargo build --release --workspace

Feature Flags

Crate Feature Description
wifi-densepose-nn onnx (default) ONNX Runtime backend
wifi-densepose-nn tch-backend PyTorch (libtorch) backend
wifi-densepose-nn candle-backend Candle (pure Rust) backend
wifi-densepose-nn cuda CUDA GPU acceleration
wifi-densepose-train tch-backend Enable GPU training modules
wifi-densepose-mat ruvector (default) RuVector graph algorithms
wifi-densepose-mat api (default) REST + WebSocket API
wifi-densepose-mat distributed Multi-node coordination
wifi-densepose-mat drone Drone-mounted scanning
wifi-densepose-hardware esp32 ESP32 protocol support
wifi-densepose-hardware intel5300 Intel 5300 CSI Tool
wifi-densepose-hardware linux-wifi Linux commodity WiFi
wifi-densepose-wifiscan wlanapi Windows WLAN API async scanning
wifi-densepose-core serde Serialization support
wifi-densepose-core async Async trait support

Testing

# Unit tests (all crates)
cargo test --workspace --no-default-features

# Signal processing benchmarks
cargo bench -p wifi-densepose-signal

# Training benchmarks
cargo bench -p wifi-densepose-train --no-default-features

# Detection benchmarks
cargo bench -p wifi-densepose-mat

Supported Hardware

Hardware Crate Feature CSI Subcarriers Cost
ESP32-S3 Mesh (3-6 nodes) hardware/esp32 52-56 ~$54
Intel 5300 NIC hardware/intel5300 30 ~$50
Atheros AR9580 hardware/linux-wifi 56 ~$100
Any WiFi (Windows/Linux) wifiscan RSSI-only $0

Architecture Decision Records

Key design decisions documented in docs/adr/:

ADR Title Status
ADR-014 SOTA Signal Processing Accepted
ADR-015 MM-Fi + Wi-Pose Training Datasets Accepted
ADR-016 RuVector Training Pipeline Accepted (Complete)
ADR-017 RuVector Signal + MAT Integration Accepted
ADR-021 Vital Sign Detection Pipeline Accepted
ADR-022 Windows WiFi Enhanced Sensing Accepted
ADR-024 Contrastive CSI Embedding Model Accepted
  • WiFi-DensePose -- Main repository (Python v1 + Rust v2)
  • RuVector -- Graph algorithms for neural networks (5 crates, v2.0.4)
  • rUv -- Creator and maintainer

License

All crates are dual-licensed under MIT OR Apache-2.0.

Copyright (c) 2024 rUv