Fault Wave Data Saving Method Using Dynamic Buffer Segmentation

The patent divides the buffer into multiple sub-buffers (first buffer, second buffer, third buffer) with different sizes and functions. The first buffer stores pre-cycle data, the second buffer stores cycle data, and the third buffer stores post-cycle data. This segmentation allows efficient utilization of memory space while capturing complete fault wave data without excessive memory allocation.

The patent implements dynamic buffer management where the buffer allocation and data transfer timing are adjusted based on the fault detection state. When a fault is detected, the system dynamically switches buffer usage patterns to ensure complete data retention. The controller dynamically manages data transfer timing to coordinate with buffer availability, ensuring data completeness without requiring static doubling of buffer size.

The patent performs preliminary data organization and buffering before the actual writing process. Complete fault wave data is captured and organized in volatile memory buffers first, then transferred to nonvolatile memory in optimized batches. This preliminary action in fast volatile memory allows the system to maintain real-time performance during data capture while enabling efficient bulk transfer to nonvolatile memory afterward, overcoming the limited writing speed.

The patent extends the data capture capability from a single time point to multiple time points by implementing a multi-buffer system that can simultaneously or sequentially capture multiple fault wave events. The first, second, and third buffers operate in different time dimensions, allowing the system to capture pre-cycle, during-cycle, and post-cycle data for consecutive faults without increasing operational complexity.