Electric Wire Protection Device with Current Sampling

The patent segments the calculation process by dividing the calculation cycle into multiple sampling points. Instead of calculating heat quantity continuously or at every possible moment, the system samples current values at specific discrete points (e.g., peak current points) within each calculation cycle. This segmentation allows accurate temperature estimation while reducing the overall computational load by focusing calculations only at critical moments.

The patent implements periodic action by performing heat quantity calculations at regular intervals (calculation cycles) rather than continuously. Within each calculation cycle, multiple current values are sampled, but the actual heat quantity computation occurs periodically at predetermined timing based on these samples. This periodic approach maintains estimation accuracy while significantly reducing operation load compared to continuous calculation.

The patent applies preliminary action by sampling multiple current values within each calculation cycle before performing the heat quantity calculation. These sampled values are stored and prepared in advance, allowing the calculation to use comprehensive data while being performed only at predetermined timing. This ensures accurate temperature estimation is achieved through thorough data collection, while the actual computation occurs less frequently, reducing operation load.

The patent uses copying by creating multiple copies of current value samples within each calculation cycle. Instead of performing continuous calculations, the system captures multiple instantaneous current measurements (copies of the electrical state) and uses these samples to compute a single representative heat quantity value for the entire cycle. This copying approach preserves accuracy information while reducing computational frequency and load.