Portable Device Vibration Sensor Defect Handling

The controller performs preliminary defect detection of the vibration sensor before relying on it for communication initiation. By checking the sensor status in advance and preparing alternative communication paths, the system ensures that smart communication functionality can be maintained even when the vibration sensor is defective, thus resolving the reliability issue while preserving the adaptability benefit.

The controller acts as an intermediary that monitors the vibration sensor's health status and dynamically switches between two communication initiation modes: vibration-based smart communication when the sensor is healthy, and button-based unidirectional communication when the sensor is defective. This intermediary control mechanism ensures system reliability by isolating the defective sensor while maintaining communication functionality through the alternative path.

The controller leverages its existing multi-functional capabilities to implement synchronous serial communication for vibration sensor status checking. The same controller that manages communication protocols, button inputs, and sensor outputs is extended to perform periodic health checks using synchronous communication. This universal approach allows fast defect detection without adding dedicated hardware, thus achieving improved speed while minimizing the increase in device complexity.