Accurate inventory control is required to ensure a sufficient supply of raw materials to meet the specific production plan. Prior to being processed into various kinds of oils, seeds such as sunflower, palm kernel, safflower, soybeans, sesame, and canola, or nuts such as peanuts, almonds, and walnuts, are stored onsite to ensure continuous production processes. The sizes of the silos that carry these raw materials can vary in diameter from greater than 15 m (50 ft) and may be over 40 m (132 ft) tall. Knowing the exact amount of raw material entering the oil extracting machines is critical to tracking and controlling production efficiency. Buildup occurs inside the silo and can damage the quality of the raw material. Since the temperature inside rises over time, the seeds inside risk getting burned and sticking to each other, forming hard bulks that cannot be used. Therefore, early insight to such buildup risk is paramount.