RealWorldControl | Cyber-Physical Operations Control, Real-Time Kernels & Deterministic Industrial Orchestration
Cyber-Physical Operations Control, Real-Time Kernels & Deterministic Industrial Orchestrationのための産業用サイバーフィジカルシステムおよびリアルタイム運用仕様。ハードリアルタイムカーネルスケジューリング、時間感応ネットワーキング（TSN）、分散フリート協調、フェイルセーフ安全限界を実装。
Operational Cyber-Physical Control & Real-Time Kernels
- 01. Real-Time Kernel & Hard Deadlines: Deterministic OS kernel space guaranteeing worst-case execution time under 50 microseconds. Preemptible spinlocks, threaded interrupt handlers, and priority inheritance prevent unbounded priority inversion. (Architecture Flow: Sensor IRQ -> Threaded Handler -> RT Priority Scheduler -> Lock-Free Ring Buffer -> Actuator Execution)
- 02. Time-Sensitive Networking (TSN): Standardized IEEE 802.1Qbv time-aware traffic scheduling over converged Gigabit Ethernet. Sub-microsecond clock synchronization via IEEE 802.1AS-2020 guarantees zero-jitter packet arrival. (Architecture Flow: Grandmaster Clock (PTP) -> Time-Aware Shaper -> Dedicated Queue -> TSN Bridge Hop -> Bounded Wire Arrival)
- 03. Digital-Twin-in-the-Loop Emulation: High-fidelity physics simulation executing concurrently with physical controllers. Real-time telemetry streaming validates firmware upgrades and state transitions before mechanical actuation. (Architecture Flow: Controller Command -> Twin Co-Simulation -> Kinematic Envelope Check -> Safe Verification -> Actuator Command)
- 04. Fail-Operational Safety & Emergency Trip: Hardware-enforced safety monitoring adhering to IEC 61508 SIL 3 and ISO 13849 Cat 4. Independent hardware watchdogs trip interlocks into a safe de-energized state upon deadline expiration. (Architecture Flow: Continuous Heartbeat -> Dual Watchdog Timer -> Deviation Detected -> SIL 3 Hardware Relay Trip -> Safe State)
Cyber-Physical Architecture Layers & Safety Envelopes
- Layer 1: Hard Real-Time Kernel & Execution Enclave: Linux PREEMPT_RT or Xenomai co-kernel environment. Implements static memory pre-allocation, CPU core shielding with isolcpus, and priority inheritance futexes to bound interrupt latency under 5 microseconds.
- Layer 2: Time-Sensitive Industrial Fieldbus & TSN Mesh: Converged Ethernet infrastructure supporting IEEE 802.1Qbv time-aware shapers, IEEE 802.1CB packet replication, and OPC UA over TSN delivering guaranteed bandwidth slices to safety-critical traffic.
- Layer 3: Multi-Agent Dispatch & Physics-Informed Orchestrator: Decentralized task assignment and trajectory negotiation using consensus protocols and spatial-temporal reservation grids, preventing kinematic conflicts between autonomous machines.
- Layer 4: SIL 3 / Safety Envelopes & Automated Interlocks: Dedicated safety PLC or discrete hardware interlock circuitry continuously monitoring control loop jitter. Automatically cuts power or engages physical mechanical brakes if deadlines are violated.
Operational Telemetry & Determinism Benchmarks: < 5 µs (Max Kernel Jitter) | 100% (Deterministic Bounded Delivery) | < 30 ns (IEEE 802.1AS PTP Sync) | SIL 3 / Cat 4 (Hardware Safety Integrity)
Core Engineering & Control Specifications
- Real-Time Kernels & Deterministic Scheduling for Physical Machines — Analyzing worst-case execution time (WCET), SCHED_DEADLINE scheduling, CPU core isolation, and lock-free ring buffers in physical automation where a missed deadline is a catastrophic failure. この技術仕様は、RealWorldControl全体で実装されているコアアーキテクチャ原則、プロトコル構成、有界遅延制約、およびフェイルセーフエンベロープを概説します。
- Time-Sensitive Networking (TSN) for Industrial Cyber-Physical Systems — Standardizing deterministic communications over IEEE 802.1Qbv time-aware shapers and IEEE 802.1AS clock synchronization, guaranteeing bounded sub-millisecond latencies across converged IT/OT networks. この技術仕様は、RealWorldControl全体で実装されているコアアーキテクチャ原則、プロトコル構成、有界遅延制約、およびフェイルセーフエンベロープを概説します。
- Digital-Twin-in-the-Loop Validation for Safety-Critical Control Firmware — Executing high-fidelity physics engines in lockstep with physical controllers to validate real-time control software updates and stress-test fail-safe boundaries without stopping live plant lines. この技術仕様は、RealWorldControl全体で実装されているコアアーキテクチャ原則、プロトコル構成、有界遅延制約、およびフェイルセーフエンベロープを概説します。
Peer-Reviewed Technical Whitepapers