Crop flow measurement using photosensors to reduce disturbance errors in yield estimation

Na, Seung You; Lee, Won Suk; Shin, Dae Jung; Kim, Jin Young; Lee, Bae-Ho

doi:10.13031/2013.18869

2005 Tampa, FL July 17-20, 2005 2005

DOI: 10.13031/2013.18869

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Crop flow measurement using photosensors to reduce disturbance errors in yield estimation

Seung You Na¹,

Won Suk Lee²,

Dae Jung Shin³

et al.

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“…This method could measure the flow with 2% to 3% accuracy. Na et al (2005) used an array of LED and phototransistor sets to measure the flow rate of four crops. They obtained a relationship between crop flow and sensor outputs by counting the interrupted light.…”

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Detecting Grain Flow Rate Using a Laser Scanner

Navid¹,

Taylor²,

Yazgi³

et al. 2015

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Detecting and measuring mass flow is fundamental to many applications in agricultural engineering. Material handling, food processing, fertilizer spreading, and yield monitoring in combines are examples where mass flow measurement is needed. Methods for measuring material flow have used load cells, optical sensors, radiometric sensors, and many other techniques. The objective of this study was to develop a system to measure material (grain) flow using a laser line scanner. A laser line scanner measures the distance between the sensor and objects based on the time-of-flight principle. In this study, it was used to measure grain flowing from a stationary bin. A sliding gate at the bottom of the bin was used to adjust the grain flow. Experiments were conducted at six grain flow rates with three replications. The results showed the ability to detect the grain flow and measure grain flow rates up to approximately 5 kg s-1 for 45 cm of flow width (with R 2 = 0.97). Measurement of flow rates greater than 5 kg s-1 was not possible. We found a linear relationship between grain flow rate and the RMSE of the laser line scanner signal (R 2 = 0.91).

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confidence: 99%

Detecting Grain Flow Rate Using a Laser Scanner

Navid¹,

Taylor²,

Yazgi³

et al. 2015

Trans.ASABE

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Crop flow measurement using photosensors to reduce disturbance errors in yield estimation

Cited by 1 publication

References 7 publications

Detecting Grain Flow Rate Using a Laser Scanner

Detecting Grain Flow Rate Using a Laser Scanner

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