Data Collection Apparatus Buffer Memory Segmentation

The patent segments the buffer memory into multiple regions (first buffer region, second buffer region, third buffer region) with different functions. The first buffer region stores data during normal operation, the second buffer region stores data during network faults, and the third buffer region serves as a work area. This segmentation allows the system to manage data storage efficiently despite the lower overall speed of the large-capacity buffer memory compared to temporary memory.

The patent implements partial buffering by storing only essential control data in the large-capacity buffer memory during network faults, rather than attempting to buffer all data. The buffering-data-setting storage allows selective identification of critical data types. This partial action approach prevents data loss for important parameters while avoiding the prohibitive cost of high-speed, large-capacity buffer memory capable of handling all data streams.

The patent implements periodic data collection during network faults based on the buffering-period-setting storage, rather than continuous high-speed collection. This periodic action adjusts the data collection rate to match the buffer storage speed capability, ensuring that data is collected systematically at sustainable intervals. This prevents buffer overflow while maintaining data completeness for critical parameters over the fault duration.

The patent dynamically adjusts the collection period based on network conditions through the setting unit. During normal operation, a standard collection period is used. When network faults are detected, the collection period is dynamically changed to a longer interval suitable for buffering operations. This dynamic adjustment optimizes data collection frequency to match system capabilities, reducing processing load while maintaining adequate data completeness during faults.