When a field of soybeans is ready to harvest, speed is of the essence. But harvesting grinds to a halt every time the combine operator has to climb down out of the cab to manually check for quality -- whole, un-split beans without stray husk material. Researchers from Kyoto University and University of Illinois recently developed a machine to automate the process, evaluating bean quality on the fly, so harvesting can go on uninterrupted.
"The main objective was to develop an efficient, compact, on-board quality-monitoring system to evaluate soybeans as they are harvested, providing the combine operator with real-time grain quality information," says Md Abdul Momin, lead scientist on the project.
Momin explains that when the threshing speed is too high, the soybeans split or break as they are harvested. This is undesirable because whole beans are considered to be higher quality and bring a higher price.
"Without this machine, operators need to periodically stop threshing and manually check the tank to evaluate the quality and make adjustments," Momin says. "With this machine, operators can look at a screen and make adjustments as they go, without stopping."
The machine, which includes a high-speed camera, is mounted inside the tank of the harvester. It takes images of the beans as they pass by and a computer program analyzes the beans in real time. One key is that it is a double-imaging system. It uses a combination of both front and back lighting so the camera can see the complete shape of the beans, making it possible to identify those that are truly split.
Momin tested the system first in the laboratory and then in field conditions. The prototype is currently in the hands of a Japanese company that is working to develop a higher-speed camera and ultimately to produce the machine.
"The same system can be used in the processing industry with a $100 web camera, making it very affordable," Momin says. "Mounting it inside of the combine is more ambitious because it needs a super high-speed camera to evaluate the soybeans as they pass rapidly by."Momin says soybean growers in Japan are eager to use this new technology to evaluate beans during the harvest. They believe it will improve the process by doing much of the sorting and cleaning of the soybeans before they reach the processing plant.
The study, "Machine vision based soybean quality evaluation," is published in Computers and Electronics in Agriculture. The research was conducted by Md Abdul Momin, Kazuya Yamamoto, Munenori Miyamoto, Naoshi Kondo, and Tony Grift.
Financial support and field experiment facilities were provided by the Yanmar Co. Ltd. in Okayama, Japan. A patent has been awarded as well.
Md Abdul Momin is a postdoctoral research associate in the Institute for Genomic Biology at U of I. Tony Grift is an associate professor in the Department of Agricultural and Biological Engineering in the College of Agricultural, Consumer and Environmental Sciences at the University of Illinois.
Debra Levey Larson | EurekAlert!
New study shows producers where and how to grow cellulosic biofuel crops
17.01.2018 | University of Illinois College of Agricultural, Consumer and Environmental Sciences
Robotic weeders: to a farm near you?
10.01.2018 | American Society of Agronomy
What enables electrons to be transferred swiftly, for example during photosynthesis? An interdisciplinary team of researchers has worked out the details of how...
For the first time, scientists have precisely measured the effective electrical charge of a single molecule in solution. This fundamental insight of an SNSF Professor could also pave the way for future medical diagnostics.
Electrical charge is one of the key properties that allows molecules to interact. Life itself depends on this phenomenon: many biological processes involve...
At the JEC World Composite Show in Paris in March 2018, the Fraunhofer Institute for Laser Technology ILT will be focusing on the latest trends and innovations in laser machining of composites. Among other things, researchers at the booth shared with the Aachen Center for Integrative Lightweight Production (AZL) will demonstrate how lasers can be used for joining, structuring, cutting and drilling composite materials.
No other industry has attracted as much public attention to composite materials as the automotive industry, which along with the aerospace industry is a driver...
Scientists at Tokyo Institute of Technology (Tokyo Tech) and Tohoku University have developed high-quality GFO epitaxial films and systematically investigated their ferroelectric and ferromagnetic properties. They also demonstrated the room-temperature magnetocapacitance effects of these GFO thin films.
Multiferroic materials show magnetically driven ferroelectricity. They are attracting increasing attention because of their fascinating properties such as...
The oceans are the largest global heat reservoir. As a result of man-made global warming, the temperature in the global climate system increases; around 90% of...
08.01.2018 | Event News
11.12.2017 | Event News
08.12.2017 | Event News
17.01.2018 | Ecology, The Environment and Conservation
17.01.2018 | Physics and Astronomy
17.01.2018 | Awards Funding