Real-Time Operating Systems

May 23, 2025

Separation kernels are becoming more important for real-time sensor processing in uncrewed systems. Nick Flaherty explains how they work. Real-time operating system (RTOS) implementations are changing as uncrewed system platforms evolve. The technology is used widely, from small operating systems for UAVs to larger and more complex implementations running critical systems in driverless cars.

The implementations in both areas are changing significantly. The code is becoming smaller, more secure and more reliable on a single microcontroller, while the larger ones are also more secure, as well as scalable, modular and updateable on microprocessors with multiple cores in order to ease the challenges of certifying the software as safe.

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