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RISS 인기검색어
- 검색키워드
- 저자 : Javidan Seyed Mohamad (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
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Design, Construction, and Evaluation of Automated Seeder with Ultrasonic Sensors for Row Detection
Javidan Seyed Mohamad,Mohamadzamani Davood 한국농업기계학회 2021 바이오시스템공학 Vol.46 No.4
Purpose The main purpose of this study was to investigate the possibility of using a seed planting robot with the ability to detect the row of cultivation. Investigating the factors affecting direct path navigation and the accuracy of cultivation by the robot has been the other objective of the research. Methods In this research, in order to cultivate seeds of legumes, as well as detect rows and hills in the cultivation, a solarpowered seeder with row detection technology was designed and constructed. In this device, with a weight of 30 kg, the required power is provided by two 12-V DC motors and a 12-V battery which is connected to the solar panel. Furthermore, in order to detect barriers, two ultrasonic sensors and a microcontroller ARDUINO UNO were used. Results With a forward speed of 17 km h−1 (in 150 rpm) and work width of 0.5 m and two rows of cultivation, a theoretical capacity of 1.7 ha h−1 for the robot was determined. The torque needed to move the device was 0.54 N.m and the power required for robot with a weight of 30 kg was 4.57 W. Conclusion The results also showed that the robot had kept a straight line at four different speeds, indicating the accurate implementation of the ultrasonic sensor in the robot.
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Amini Sirous,Mohamadzamani Davood,Javidan Seyed Mohamad 한국농업기계학회 2022 바이오시스템공학 Vol.47 No.3
Purpose This research investigates the main specifications of eggshell which are the thickness of the shell and its strength. For this purpose, random sampling was implemented on 180 fresh and healthy eggs of Bovance breed produced at Ghazvin province agricultural jihad organization’s training center. Methods To measure the shell thickness, four methods, dial gauge, ultrasound waves, micro-meter and photometer, were applied. Due to its precision, the indicator hour destructive measurement method was selected as the control method. Results By analyzing and comparing data collected through 4 methods in the research, a significant difference between measurement methods was revealed. Moreover, comparing the measurement methods with the control method (dial gauge), the lowest measurement error was that of the ultrasound wave measurement method with 7.1% and the highest was that of the photometer method with 15.7%. Furthermore, regression equations are determined for the referred measurement methods with the shell strength. Conclusion It was observed that the ultrasound method compared to other methods proposed in this study is more accurate for measuring the thickness of the eggshell non-destructively. Therefore, the non-destructive ultrasonic measurement method can be a suitable alternative to these methods due to the proximity of the measured values to non-destructive, direct, and accurate destructive methods. Since the ultrasound method is a fast and relatively inexpensive method, this method can be used in the quality grading process of eggs.
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