Investigation into converting a combine grain loss signal into a grain loss rate
Lead Investigator(s) Institution
Prairie Agricultural Machinery Institute (PAMI)
To correlate existing harvester loss sensor data with actual loss curves. To optimize the harvest loss sensor. To determine if current loss sensing technology is adequate. To decrease harvest losses for all Saskatchewan crops.
The main objective of this project was to correlate existing harvester loss sensor data with actual grain loss by putting the harvester loss signal and the actual grain loss rate in relation. Further project objectives were to determine if existing technology is adequate to support a grain loss rate, optimize the harvest loss sensor, and to decrease harvest losses across all Saskatchewan crops through improved harvest loss feedback. Relationship equations were produced to achieve a grain loss rate using feed rate and the loss sensor signal. These relationship equations however are dependent on actual feed rate which isn’t currently measured by combines, and require more research to fully understand their dependency on crop conditions, combine settings, and combine make and model. Therefore, it can be concluded that the ability for existing loss sensing technology to provide an actual grain loss rate is limited; though the correlation to actual loss wasn’t consistent, for most conditions, the grain loss monitor system tested did provide a reliable indication of when actual loss was increasing or decreasing. In large grain crops, a grain loss rate could likely be determined through the use of relationship equations and correction factors. However, in small grain crops, design improvements would need to be made to the grain loss sensor system, especially on the cleaning shoe loss sensor, to accurately indicate actual grain loss rate.
Duration/Timeline of Project (Year to Year)
2017 - 2018
Saskatchewan Ministry of Agriculture - Agriculture Development Fund, Saskatchewan Wheat Development Commission, Saskatchewan Canola Development Commission
Total Project Cost