1. Internet of Things: Low Power + Security is Key
Recommended RTOS: FreeRTOS (open-source preferred), Zephyr (new security contender), ThreadX (AIoT tool)
Key Points:
IoT nodes require extreme minimalism → FreeRTOS kernel <10KB
5G/WiFi devices need security certification → Zephyr supports PSA security standards
AIoT complex tasks → ThreadX microsecond-level thread switching
2. Automotive Electronics: Functional Safety > Performance
Recommended RTOS: μC/OS-II (classic choice), VxWorks (automotive king), ThreadX (emerging force)
Key Points:
Autonomous driving requires ISO 26262 certification → μC/OS-II/VxWorks pass ASIL D
Multi-core ECU scheduling → VxWorks supports AMP/SMP hybrid deployment
In-vehicle entertainment systems → ThreadX supports 4K video hardware decoding
3. Medical Devices: Certification + Reliability = Lifeline
Recommended RTOS: SafeRTOS (full certification), μC/OS-II (domestic alternative), RT-Thread (local rapid development)
Key Points:
Implantable devices require IEC 62304 → SafeRTOS has TÜV SIL3 certification
Ventilators need dual-machine hot backup → μC/OS-II supports heartbeat detection mechanism
Domestic CT machines → RT-Thread integrates DICOM protocol stack
4. Industrial Control: Hard Real-Time > Everything
Recommended RTOS: Intewell (domestic benchmark), VxWorks (foreign preferred), FreeRTOS (simple control)
Key Points:
CNC machines require μs-level interrupts → Intewell supports TSN time-sensitive networking
Chemical DCS systems → VxWorks memory protection prevents chain failures
Simple PLC → FreeRTOS + Protothreads lightweight solution
5. Consumer Electronics: Cost + Development Efficiency First
Recommended RTOS: FreeRTOS (globally popular), RT-Thread (domestic ecosystem), ThreadX (high-end choice)
Key Points:
Smart home control → RT-Thread integrates Tuya IoT SDK
High-end headphones → ThreadX supports LDAC Bluetooth protocol
Robotic vacuum cleaners → FreeRTOS + SLAM algorithm lightweight deployment
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