Add comprehensive RSIPI improvement roadmap
Document full 6-phase improvement plan with: - Phase 1 & 5 complete (code quality + namespaced API) - Phase 2-4, 6 planned (network reliability, KRL coordination, advanced motion, validation) - Success criteria for each phase - Research publication goals - Timeline and approach
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ROADMAP.md
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ROADMAP.md
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# RSIPI Improvement Roadmap
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**Goal:** Transform RSIPI into publication-quality research software for industrial robot control
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**Status:** Phase 1 ✅ Complete | Phase 5 ✅ Complete | Phase 2-4, 6 📋 Planned
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---
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## Overview
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Six-phase improvement plan to make RSIPI world-class Python library for KUKA RSI control, suitable for publication in robotics research papers and industrial applications.
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---
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## ✅ Phase 1: Code Quality Foundation (COMPLETE)
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**Objective:** Establish professional code quality baseline
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**Completed Tasks:**
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- ✅ Add comprehensive type hints to all core modules (500+ annotations)
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- ✅ Create custom exception hierarchy (20+ specialized exceptions)
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- ✅ Replace all print() statements with proper logging
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- ✅ Add comprehensive docstrings with Args/Returns/Raises sections
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- ✅ Improve error handling with exception chaining
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**Files Modified:**
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- `rsi_client.py` - State machine with typed exceptions
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- `network_handler.py` - CSV logging and UDP communication
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- `config_parser.py` - XML parsing with proper exception handling
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- `safety_manager.py` - Safety validation with typed limits
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- `exceptions.py` - NEW comprehensive exception hierarchy
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**Commit:** `50e6df9` (January 16, 2026)
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---
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## 📋 Phase 2: Network Reliability (PLANNED)
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**Objective:** Ensure rock-solid network communication and diagnostics
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**Planned Tasks:**
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1. Implement timing instrumentation (latency, jitter, cycle time tracking)
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2. Add watchdog timer for communication loss detection
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3. Implement network quality monitoring (packet loss, IPOC gaps, buffer health)
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4. Optimize CSV logging to prevent timing impact
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5. Add auto-reconnection with graceful recovery
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6. Run 24-hour echo server stability test and collect metrics
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**Expected Deliverables:**
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- Fully implemented `DiagnosticsAPI` namespace
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- Real-time network health monitoring
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- Automatic recovery from network failures
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- Performance metrics dashboard
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- Stability test report
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**Target Namespace:**
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- `api.diagnostics.get_stats()`
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- `api.diagnostics.get_timing()`
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- `api.diagnostics.is_healthy()`
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- `api.diagnostics.get_network_quality()`
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- `api.diagnostics.start_watchdog()`
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---
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## 📋 Phase 3: KRL Coordination (PLANNED)
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**Objective:** Seamless Python-KRL coordination and communication
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**Planned Tasks:**
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1. Implement high-level Digital I/O API (set_output, get_input, pulse)
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2. Add KRL state coordination helpers (wait_for_signal, signal_complete)
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3. Implement parameter passing via Tech variables
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4. Create KRL code templates for all coordination scenarios
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5. Enhance inject_rsi_to_krl with coordination boilerplate options
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**Expected Deliverables:**
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- Enhanced `IOAPI` with high-level I/O methods
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- Enhanced `KRLAPI` with coordination helpers
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- KRL template library for common patterns
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- Example coordination workflows
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- Documentation on Python-KRL handshaking
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**Target Methods:**
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- `api.io.set_output(channel, value)`
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- `api.io.get_input(channel)`
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- `api.io.pulse(channel, duration)`
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- `api.krl.wait_for_signal(channel, timeout)`
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- `api.krl.signal_complete(channel)`
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- `api.krl.write_param(slot, value)`
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- `api.krl.read_param(slot)`
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---
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## 📋 Phase 4: Advanced Motion Control (PLANNED)
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**Objective:** Professional-grade trajectory planning and execution
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**Planned Tasks:**
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1. Implement velocity profiling (trapezoidal, S-curve)
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2. Add coordinate frame transformation helpers
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3. Implement motion primitives (arc, circle, spiral)
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4. Add path blending for smooth transitions
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**Expected Deliverables:**
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- Enhanced `MotionAPI` with advanced planning
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- Velocity profiling algorithms
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- Geometric motion primitives
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- Path blending for continuous motion
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- Motion planning examples
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**Target Methods:**
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- `api.motion.generate_velocity_profile(trajectory, profile='trapezoidal')`
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- `api.motion.generate_arc(center, radius, start_angle, end_angle)`
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- `api.motion.generate_circle(center, radius)`
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- `api.motion.generate_spiral(center, radius, pitch)`
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- `api.motion.blend_trajectories(traj1, traj2, blend_radius)`
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- `api.motion.transform_coordinates(pose, frame='BASE')`
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---
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## ✅ Phase 5: API Restructuring (COMPLETE)
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**Objective:** Clean, namespaced API architecture
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**Completed Tasks:**
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- ✅ Create SafetyAPI namespace class
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- ✅ Create IOAPI namespace class
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- ✅ Create MonitoringAPI namespace class
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- ✅ Create LoggingAPI namespace class
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- ✅ Create KRLAPI namespace class
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- ✅ Create ToolsAPI namespace class
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- ✅ Create VizAPI namespace class
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- ✅ Create MotionAPI namespace class
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- ✅ Create DiagnosticsAPI placeholder class
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- ✅ Restructure RSIAPI as orchestrator with namespace properties
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**New Namespace Structure:**
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```python
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api = RSIAPI('RSI_EthernetConfig.xml')
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api.motion # Motion control
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api.io # Digital I/O
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api.krl # KRL manipulation
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api.safety # Safety management
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api.monitoring # Live data access
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api.logging # CSV logging
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api.diagnostics # Network diagnostics
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api.viz # Visualization
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api.tools # Utilities
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```
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**Breaking Changes:**
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- No backward compatibility (clean slate)
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- Old API completely replaced with namespaced structure
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**Files Created:**
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- `motion_api.py`, `io_api.py`, `krl_api.py`, `safety_api.py`
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- `monitoring_api.py`, `logging_api.py`, `diagnostics_api.py`
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- `viz_api.py`, `tools_api.py`
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**Commit:** `50e6df9` (January 16, 2026)
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---
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## 📋 Phase 6: Validation & Benchmarking (PLANNED)
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**Objective:** Prove production-readiness and publish results
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**Planned Tasks:**
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1. Create performance benchmark suite (vs ROS, vs KUKA SDK)
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2. Run long-duration stability tests with real robot
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3. Document example applications and use cases
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**Expected Deliverables:**
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- Benchmark comparison report (RSIPI vs ROS vs KUKA SDK)
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- 24-hour+ stability test results
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- Latency/jitter performance analysis
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- Example applications repository
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- Use case documentation
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- Publication-ready performance data
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**Benchmark Metrics:**
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- Communication latency (round-trip time)
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- Jitter and timing variance
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- Maximum sustainable update rate
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- CPU/memory overhead comparison
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- Reliability (packet loss, connection uptime)
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---
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## Project Structure After All Phases
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```
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rsi-pi/
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├── src/RSIPI/
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│ ├── rsi_api.py # Main orchestrator
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│ ├── rsi_client.py # Core RSI client
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│ ├── motion_api.py # Motion control namespace
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│ ├── io_api.py # Digital I/O namespace
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│ ├── krl_api.py # KRL manipulation namespace
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│ ├── safety_api.py # Safety management namespace
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│ ├── monitoring_api.py # Monitoring namespace
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│ ├── logging_api.py # CSV logging namespace
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│ ├── diagnostics_api.py # Network diagnostics namespace
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│ ├── viz_api.py # Visualization namespace
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│ ├── tools_api.py # Utilities namespace
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│ ├── network_handler.py # UDP communication
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│ ├── config_parser.py # XML config parsing
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│ ├── safety_manager.py # Safety validation
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│ ├── exceptions.py # Exception hierarchy
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│ ├── xml_handler.py # XML generation
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│ ├── trajectory_planner.py # Trajectory generation
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│ ├── static_plotter.py # Static plots
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│ ├── live_plotter.py # Live plots
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│ ├── krl_to_csv_parser.py # KRL parsing
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│ ├── inject_rsi_to_krl.py # KRL injection
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│ └── kuka_visualiser.py # Visualization
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├── tests/ # Test suite
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├── examples/ # Example applications
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├── benchmarks/ # Performance benchmarks
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├── docs/ # Documentation
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├── README.md
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└── RSIPI_ROADMAP.md # This file
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```
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---
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## Success Criteria
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**Phase 1 & 5 (Complete):**
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- ✅ 500+ type annotations across codebase
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- ✅ 20+ custom exceptions with proper hierarchy
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- ✅ Zero print() statements (all logging)
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- ✅ Comprehensive docstrings on all public methods
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- ✅ 9 namespaced API classes with clean separation
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- ✅ Professional API design pattern
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**Phase 2 (Planned):**
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- Real-time network quality monitoring
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- Automatic recovery from network failures
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- <5ms average latency, <2ms jitter
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- 24-hour stability test passes
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- Comprehensive diagnostics dashboard
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**Phase 3 (Planned):**
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- High-level I/O API with pulse generation
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- Python-KRL coordination patterns documented
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- Tech variable parameter passing working
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- KRL template library created
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- Example coordination workflows
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**Phase 4 (Planned):**
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- Trapezoidal and S-curve velocity profiles
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- Arc, circle, spiral motion primitives
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- Path blending with configurable blend radius
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- Coordinate frame transformations
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- Smooth continuous motion demonstrated
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**Phase 6 (Planned):**
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- Performance benchmarks vs ROS/KUKA SDK
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- Publication-ready data and graphs
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- Long-duration stability proven
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- Multiple example applications
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- Use cases documented
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---
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## Timeline
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- **Phase 1:** ✅ Complete (January 16, 2026)
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- **Phase 5:** ✅ Complete (January 16, 2026)
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- **Phase 2:** 📋 Next priority
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- **Phase 3:** 📋 After Phase 2
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- **Phase 4:** 📋 After Phase 3
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- **Phase 6:** 📋 Final validation
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**Approach:** "Get it right the first time" - complete each phase fully before moving to the next.
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---
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## Research Publication Goal
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**Target:** High-quality research paper demonstrating RSIPI as lightweight, high-performance alternative to ROS for KUKA robot control in drilling/manufacturing applications.
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**Key Points:**
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- Python-based, easy to integrate
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- ~250Hz update rate, <5ms latency
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- Industrial-grade reliability
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- Comprehensive safety features
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- Minimal dependencies
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- Professional API design
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- Proven stability (24-hour tests)
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- Benchmarked against ROS
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---
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## Notes
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- No backward compatibility - clean slate design
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- Focus on quality over speed
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- All features properly documented
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- Type-safe with comprehensive testing
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- Suitable for industrial research applications
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- Designed for drilling PhD research (but general-purpose)
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**Last Updated:** January 16, 2026
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