A practical approach to comparative design of non-contact sensing techniques for seed flow rate detection

Karimi, Hadi; Navid, Hossein; Besharati, Bahram; Behfar, Hossein; Eskandari, Iraj

doi:10.1016/j.compag.2017.08.027

Cited by 34 publications

(13 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The spacing between seeds was calculated through the sowing speed simulated by the belt conveyor and the time of passage of each seed, according to Equation (1). The times were measured using an E18-D80NK infrared proximity sensor fixed on a metal frame approximately 0.05 m from the belt (Karimi et al, 2017;Cay et al, 2017). In addition, another infrared sensor was strategically positioned on the cogwheel (16 teeth) on the roller that moved the belt, allowing the measurement of the simulated speed (Santos et al, 2011).…”

Section: Automated Data Acquisitionmentioning

confidence: 99%

Influence of Seed Tube Curvature on Seed Longitudinal Distribution

et al. 2020

View full text Add to dashboard Cite

Studies on the longitudinal distribution of seeds in the sowing row seek to improve crop homogeneity, thus generating high productivity. In this context, seed tubes must be analyzed for their angular curvature. Thus, this study aimed to evaluate the influence of the seed tube curvature on the longitudinal distribution of corn and soybean seeds at different speeds. Two experiments were conducted completely randomized in a double factorial design. The first factor consisted of the seed tube curvature (straight and curved) and the second factor consisted of sowing speeds (1.11, 1.39, and 1.67 m s −1 for corn and 1.39, 1.67, 1.94, and 2.22 m s −1 for soybean), with five replications. The parameters analyzed to measure the longitudinal distribution were the number of seeds per meter, average spacing, double, flawed, and acceptable spacings, coefficient of variation, and precision index. The results were subjected to normality and homogeneity tests of residuals, followed by an analysis of variance and Tukey test, when significant. The curved seed tube showed the highest efficiency in the measured parameters for both corn and soybean. The increase in sowing speed had a negative influence on the evaluated parameters, especially in the soybean crop.

show abstract

Section: Automated Data Acquisitionmentioning

confidence: 99%

Influence of Seed Tube Curvature on Seed Longitudinal Distribution

et al. 2020

View full text Add to dashboard Cite

show abstract

“…The opposite-type infrared ray sensing unit (Beike Shangmao Co. Ltd., Shenzhen, China), used to detect small seeds, consisted of a transmitter and a receiver [25,26,27]. The receiver was installed such that it pointed toward the transmitter to ensure that it received the infrared ray emitted by the transmitter.…”

Section: Design Of a Seeding Quantity Sensormentioning

confidence: 99%

Development and Experimental Analysis of a Seeding Quantity Sensor for the Precision Seeding of Small Seeds

Liu

Zhao

et al. 2019

Sensors

View full text Add to dashboard Cite

Having the correct seeding rate for a unit area is vital to crop yields. In order to assess the desirable seeding rate, the number of discharged seeds needs to be monitored in real-time. However, for small seeds, the miscounting of seeds during monitoring happens frequently when using conventional seeding quantity sensors, which have wide light beam intervals. Thus, a seeding quantity sensor, which enables small seeds to pass through the light beam steadily, was developed. Based on the seed-shading time, a seed-counting algorithm was proposed. Moreover, the key structure parameters of the proposed sensor were ascertained using an optimization experiment. Finally, the developed seeding quantity sensor was tested against a photoelectric sensor and a fiber sensor to compare the seed monitoring accuracies. The results show that the average monitoring accuracy of the developed sensor, photoelectric sensor, and fiber sensor were 97.09%, 56.79%, and 91.10%, respectively. Furthermore, the factorial analysis shows that the forward velocity of the experimental apparatus and the rotational speed of the seeding plate did not significantly change the monitoring accuracies obtained by the developed sensor. Therefore, the developed sensor can be applied to monitor the seed quantity for the precision seeding of small seeds accurately and robustly.

show abstract

“…Compared with the high-speed photography method and the piezoelectric sensor method, the photoelectric monitoring method has the advantages of a simple sensor structure, fast response speed, and easy development and configuration; therefore, this method has gradually become the focus of research (Al-Mallahi and Kataoka, 2016;Besharati et al, 2019). Karimi et al (2017Karimi et al ( , 2019 built a seeding monitoring device and a seeding monitoring system with infrared laser diode array sensors and realized the measurement of seed flow. However, the array can monitor only the seed information in a single direction, easily producing monitoring errors.…”

Section: Introductionmentioning

confidence: 99%

Optimized Design, Monitoring System Development and Experiment for a Long-Belt Finger-Clip Precision Corn Seed Metering Device

Tang

Wang

et al. 2022

Front. Plant Sci.

View full text Add to dashboard Cite

To solve multiple problems, such as the poor seeding process stability in the conventional finger-clip precision corn seed metering device and the inability to monitor the seeding effect, a long-belt finger-clip precision seed metering device was optimized and designed. The overall structure and working principle were described, and the mechanism of smooth transport and delivery was analyzed. A diffuse reflection photoelectric sensor and rectangular optical fiber sensor were used to monitor the number of corn seeds in the seeding process, and the states of multiple and miss seeding were calculated. A corn seeding quality monitoring system was designed. In this study, the seed metering performance of the long-belt finger-clip precision seed metering device was compared to that of the conventional finger-clip precision corn seed metering device. It was shown that the reseeding index, the miss-seeding index and the coefficient of variation can be effectively reduced with increasing seed metering tray speed. At the maximum speed of 65r/min, the qualified index increased from 75.75 to 84.70%, the reseeding index decreased from 13.66 to 8.49%, the miss-seeding index decreased from 10.59 to 6.81%, and the coefficient of variation decreased from 20.69 to 6.83%. The variations of these four evaluation parameters with the seed metering tray rotating speed were analyzed. Furthermore, the effects of the seeding frequency and seeding speed on the four evaluation parameters were studied through single factor and variance analyses. The results showed that the relative errors of the qualified index, the reseeding index, the miss-seeding index and the seeding amount increased gradually with the increase in the seed metering tray rotating speed, and the monitoring accuracy of the sensor decreased gradually. The accuracy of sensor monitoring decreased with increasing seeding frequency and seeding speed. This study provides an optimized scheme for the smooth delivery and movement of conventional seed metering devices and provides a technical reference for the development and design of monitoring systems with multiple index and the miss-seeding index of seed metering devices.

show abstract

A practical approach to comparative design of non-contact sensing techniques for seed flow rate detection

Cited by 34 publications

References 10 publications

Influence of Seed Tube Curvature on Seed Longitudinal Distribution

Influence of Seed Tube Curvature on Seed Longitudinal Distribution

Development and Experimental Analysis of a Seeding Quantity Sensor for the Precision Seeding of Small Seeds

Optimized Design, Monitoring System Development and Experiment for a Long-Belt Finger-Clip Precision Corn Seed Metering Device

Contact Info

Product

Resources

About