@mytec: iter3.10 start, baseline rc ready

2026-02-04 15:56:09 +02:00
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+# RFCP Project Roadmap — Updated February 4, 2026
+
+**Project:** RFCP (RF Coverage Planning) for UMTC  
+**Developer:** Олег + Claude  
+**Started:** January 30, 2025  
+**Current Version:** 3.8.0 (GPU Acceleration Complete)
+
+---
+
+## ✅ Completed Milestones
+
+### Phase 1: Frontend (January 2025)
+- ✅ React + TypeScript + Vite + Leaflet
+- ✅ Multi-site RF coverage planning
+- ✅ Multi-sector sites (Alpha/Beta/Gamma)
+- ✅ Geographic-scale canvas heatmap
+- ✅ Keyboard shortcuts + delete confirmation
+- ✅ NumberInput components with sliders
+- ✅ TypeScript strict mode, ESLint clean
+- ✅ Production build: 536KB / 163KB gzipped
+
+### Phase 2: Backend Architecture (February 1, 2025)
+- ✅ Python FastAPI + NumPy + ProcessPoolExecutor
+- ✅ 8 propagation models (FreeSpace, Okumura-Hata, COST-231, ITU-R P.1546, etc.)
+- ✅ Modular geometry engine (haversine, intersection, reflection, diffraction, LOS)
+- ✅ SharedMemoryManager for terrain data (zero-copy, 25 MB)
+- ✅ Building filtering (351k → 27k bbox → 15k cap)
+- ✅ Overpass API with retry + mirror failover
+- ✅ WebSocket progress streaming
+
+### Phase 3: Performance (February 2-3, 2025)
+- ✅ LOD (Level of Detail) optimization
+- ✅ Spatial indexing for buildings (R-tree)
+- ✅ Dominant path simplification for distant points
+- ✅ OOM fix + memory management
+- ✅ CloudRF-style color gradient
+- ✅ Results popup + session history
+- ✅ Terrain profile viewer
+
+### Phase 4: GPU Acceleration (February 3-4, 2025) ⭐
+- ✅ CuPy + CUDA backend (RTX 4060)
+- ✅ CUDA Toolkit 13.1 + cupy-cuda13x setup
+- ✅ Phase 2.5: Vectorized distances + path_loss (0.006s)
+- ✅ Phase 2.6: Vectorized terrain LOS + diffraction (0.04s)
+- ✅ Phase 2.7: Vectorized antenna pattern loss
+- ✅ Vegetation bbox pre-filter (100x+ speedup)
+- ✅ Worker process isolation (no CUDA in workers)
+- ✅ PyInstaller ONEDIR GPU build (1.2 GB installer)
+- ✅ **Full preset: 195s → 11.2s (17.4x speedup)**
+
+### Supporting Work
+- ✅ RF Radio Theory wiki article (comprehensive)
+- ✅ Propagation model research (CloudRF, SPLAT!, Signal Server)
+- ✅ RFCP Method collaboration framework documented
+
+---
+
+## 📊 Current Performance
+
+| Preset | Points | Resolution | Time (cached) | Time (cold) |
+|--------|--------|-----------|---------------|-------------|
+| Standard | 1,975 | 200m | **2.3s** | ~12s |
+| Full | 6,640 | 50m | **11.2s** | ~20s |
+| 50km radius | 4,966 | adaptive | ~410s | ~420s |
+
+**Hardware:** Windows 11, RTX 4060 Laptop GPU, 6-core CPU
+
+---
+
+## 🔜 Next: Phase 5 — Data & Accuracy
+
+### 5.1 SRTM Terrain Integration
+**Priority:** HIGH  
+**Status:** Not started
+
+Current terrain: Single HGT tile download per calculation  
+Target: Pre-cached SRTM/ASTER DEM tiles with proper interpolation
+
+- [ ] SRTM tile manager (auto-download, cache)
+- [ ] Bilinear interpolation for elevation sampling
+- [ ] Multi-tile coverage for large radius
+- [ ] Terrain profile accuracy validation
+- [ ] Compare with current terrain data quality
+
+### 5.2 Project Persistence
+**Priority:** MEDIUM
+
+- [ ] Save/load projects (JSON or SQLite)
+- [ ] Site configurations persistence
+- [ ] Coverage results caching
+- [ ] Session history persistence across restarts
+- [ ] Export coverage report (PDF/PNG)
+
+### 5.3 Accuracy Validation
+**Priority:** MEDIUM
+
+- [ ] Compare with known coverage maps
+- [ ] Field measurements with real equipment
+- [ ] Calibrate propagation models per environment
+- [ ] Antenna pattern library (real equipment specs)
+
+---
+
+## 🔮 Future Phases
+
+### Phase 6: Multi-Station & Dashboard
+- [ ] Multi-station view (aggregate coverage)
+- [ ] Station discovery via WireGuard mesh
+- [ ] Coverage gap analysis
+- [ ] Interference modeling between stations
+- [ ] Handover zone visualization
+
+### Phase 7: Hardware Integration
+- [ ] LimeSDR Mini 2.0 testing
+- [ ] Real RF attach validation
+- [ ] sysmoISIM-SJA2 SIM integration
+- [ ] ZTE B8200 base station testing
+- [ ] INFOZAHYST Plastun SDR (if accessible)
+
+### Phase 8: Advanced Features
+- [ ] 3D visualization mode
+- [ ] Link budget analysis view
+- [ ] Frequency planning tool
+- [ ] Indoor coverage modeling
+- [ ] Time-series analysis (seasonal vegetation)
+- [ ] Offline mode (embedded terrain DB)
+
+### Phase 9: Distribution
+- [ ] Auto-updater (electron-updater)
+- [ ] Live USB distribution for field deployment
+- [ ] Standalone offline package
+- [ ] User documentation / help system
+
+---
+
+## 🏛️ Architecture Overview
+
+```
+RFCP Application (Electron)
+├── Frontend (React + TypeScript + Vite)
+│   ├── Leaflet map with custom canvas heatmap
+│   ├── Zustand state management
+│   └── WebSocket for progress streaming
+│
+├── Backend (Python FastAPI)
+│   ├── Coverage Engine
+│   │   ├── Grid generator (adaptive zones)
+│   │   ├── GPU pipeline (CuPy/CUDA) — main process
+│   │   │   ├── Phase 2.5: distances + path_loss
+│   │   │   ├── Phase 2.6: terrain LOS + diffraction
+│   │   │   └── Phase 2.7: antenna pattern
+│   │   └── CPU workers (ProcessPool) — 3-6 workers
+│   │       ├── Building obstruction (spatial index)
+│   │       ├── Reflections (ray-building intersection)
+│   │       └── Vegetation loss (bbox pre-filter)
+│   │
+│   ├── Propagation Models (8 models)
+│   │   ├── Free-Space Path Loss
+│   │   ├── Okumura-Hata (150-1500 MHz)
+│   │   ├── COST-231-Hata (1500-2000 MHz)
+│   │   ├── ITU-R P.1546
+│   │   └── ... 4 more
+│   │
+│   ├── OSM Services
+│   │   ├── Buildings (Overpass API + cache)
+│   │   ├── Vegetation (bbox pre-filter)
+│   │   ├── Water bodies
+│   │   └── Streets
+│   │
+│   └── Terrain Service
+│       ├── HGT tile download + cache
+│       ├── Elevation sampling
+│       └── Line-of-sight checking
+│
+└── Desktop (Electron)
+    ├── Backend process management
+    └── NSIS installer (1.2 GB with CUDA)
+```
+
+---
+
+## 📈 Development Timeline
+
+```
+Jan 30, 2025   Phase 1: Frontend complete (10 iterations)
+Feb 01, 2025   Phase 2: Backend architecture (48 files, 82 tests)  
+Feb 02, 2025   Phase 3: LOD + performance optimization
+Feb 03, 2025   Phase 3.5-3.6: GPU setup + CUDA build
+Feb 04, 2025   Phase 3.7-3.8: GPU vectorization complete ⭐
+               ─────────────────────────────────────────
+               Full preset: 195s → 11.2s (17.4x speedup)
+               Standard: 38s → 2.3s (16.5x speedup)
+```
+
+**Total development time:** ~5 days intensive  
+**Total iterations:** 3.8.0 (20+ sub-iterations)  
+**Architecture:** Battle-tested, production-ready
+
+---
+
+## 🧰 Tech Stack
+
+| Component | Technology | Version |
+|-----------|-----------|---------|
+| Frontend | React + TypeScript | 18 |
+| Build | Vite | 5.x |
+| Map | Leaflet | 1.9 |
+| State | Zustand | 4.x |
+| Backend | Python FastAPI | 3.12 |
+| GPU | CuPy + CUDA | 13.x |
+| Parallel | ProcessPoolExecutor | stdlib |
+| Terrain | NumPy (HGT tiles) | 1.26 |
+| Desktop | Electron | 28.x |
+| Installer | NSIS (via electron-builder) | - |
+| Build (BE) | PyInstaller | 6.x |
+
+---
+
+*"11.2 seconds. Full preset. 6,640 points. GPU acceleration complete."*
+*— February 4, 2026*