• Title/Summary/Keyword: Conveyor system

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Development of Real-time Simultaneous Discharge Algorithm for Randomly Feeding Object (무작위 이송 개체용 실시간 동시 배출 알고리즘 개발)

  • Kim, S. C.;Hwang, H.
    • Journal of Biosystems Engineering
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    • v.24 no.2
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    • pp.145-152
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    • 1999
  • Methods of discharging each graded agricultural product are divided into two according to the type of feeding. One is based on feeding objects using a series of specially designed holders mounted with an equal interval. The other is randomly feeding objects while being isolated without a specific interval. In this paper, a real time simultaneous discharge algorithm, which is good for objects randomly fed individually and for multi-objects located along a series of discharge buckets, was developed. And the developed algorithm was implemented to the controller and the performance was verified using the system developed for dried mushrooms. The discharge system used for the experiment was composed of a variable speed conveyor, a series of double channel bucket mounted along both sides of the conveyor, and a series of air nozzles and optic sensors. Developed algorithm worked perfectly and could be directly used for automatic discharge system for randomly feeding agricultural products.

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Design and implementation of ESD cable Disconnection Monitoring System (ESD 접지선 단선 모니터링 시스템 설계 및 구현)

  • Seong, Jung-Mo;Chung, Young-Suk;Park, Koo-Rack
    • Journal of the Korea Convergence Society
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    • v.8 no.8
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    • pp.77-82
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    • 2017
  • In the splay manufacturing process, conveyor systems are widely used for conveying panels. In this conveyor, a large number of grounding lines are used in order to prevent a product failure due to static electricity. In many cases, the grounding line is disconnected due to the rotation of the transporting roller or curling, leading to product failure. In order to solve such a problem, there is a growing need for a system capable of detecting disconnection of a ground wire in real time. Therefore, in this paper, we propose a disconnection monitoring system of ESD (Electro-Static Discharge) ground wire caused by friction between the conveyor drive part and the panel. The proposed system is a monitoring system that can detect disconnection and disconnection of ground wire using ATmega 2560 and Wheatstone Bridge circuit. It can detect disconnection of ground wire immediately and can take measures to reduce the defect rate due to static electricity. The system proposed in this paper is expected to be applicable to the production and test equipments of all industries where the ground wire is used.

Remote Fault Detection in Conveyor System Using Drone Based on Audio FFT Analysis (드론을 활용하고 음성 FFT분석에 기반을 둔 컨베이어 시스템의 원격 고장 검출)

  • Yeom, Dong-Joo;Lee, Bo-Hee
    • Journal of Convergence for Information Technology
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    • v.9 no.10
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    • pp.101-107
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    • 2019
  • This paper proposes a method for detecting faults in conveyor systems used for transportation of raw materials needed in the thermal power plant and cement industries. A small drone was designed in consideration of the difficulty in accessing the industrial site and the need to use it in wide industrial site. In order to apply the system to the embedded microprocessor, hardware and algorithms considering limited memory and execution time have been proposed. At this time, the failure determination method measures the peak frequency through the measurement, detects the continuity of the high frequency, and performs the failure diagnosis with the high frequency components of noise. The proposed system consists of experimental environment based on the data obtained from the actual thermal power plant, and it is confirmed that the proposed system is useful by conducting virtual environment experiments with the drone designed system. In the future, further research is needed to improve the drone's flight stability and to improve discrimination performance by using more intelligent methods of fault frequency.

Response Surface Tuning Methods in PID Control of the Magnetic Levitation Conveyor System (반응 표면법을 이용한 자기부상 반송장치의 PID 이득값 조정)

  • Bae, Kyu-Young;Kim, Chang-Hyun;Kim, Bong-Seup
    • Proceedings of the KSR Conference
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    • 2011.10a
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    • pp.2609-2614
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    • 2011
  • A proportional integral derivative (PID) controller is designed and applied to a magnetic levitation conveyor system to control the levitation gap length of the electromagnet constantly. The PID gain parameters are optimized by response surface methods (RSM). The controller is verified with the state-space model of electromagnetic suspension by MATLAB/SIMULINK program. And, the controller and the state-space model are also verified experimentally. Simulation and experimental results shows the effectiveness of the PID gain tuning by RSM as compared with the classical PID tuning.

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On the optimization of the design variables of linear induction motor for 3-D conveyor system (입체 반송용 선형유도전동기의 설계 변수 최적화에 대하여)

  • Im, Dal-Ho;Kim, Gyu-Tak;Park, Seung-Chan
    • Proceedings of the KIEE Conference
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    • 1991.07a
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    • pp.139-142
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    • 1991
  • The design variables of SLIM used for 3-D conveyor system are optimized by nonlinear programing. Five design variables are selected as independent ones and object function is expressed as a combination of the weight and the normal force of the motor. Maximum flux density in the teeth, primary length and starting thrust are chosen as constraint functions. Goodness factor considering of conveying characteristic is also included in the constraints. In this paper sequential unconstrained minimization technique(SUMT) and variable metric method are used to solve the nonlinear problem.

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Analysis of the Productivity of Automobile Painting Process Using Computer Simulation (자동차 도장공정의 생산성 향상을 위한 시뮬레이션 분석)

  • 김원경
    • Journal of the Korea Society for Simulation
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    • v.8 no.2
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    • pp.73-85
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    • 1999
  • In this paper, the productivity estimation of the painting line in an automobile plant is studied. To improve the bottleneck and the weak point of the process, computer simulations are performed. In determining the system specification, the status of the conveyor lines and the other physical facilities are considered in order not to intervene with each other and to satisfy the painting facility restrictions. As simulation parameters, production performance ratio, number of hanger and dolley, down time, speed of conveyor and the pitch of a painting body are chosen on the basis of exhaustive field evaluation to study their effects on the capacity of the process. The results of the simulation show that we can improve the capability of they system without additional investment to the plant facility. The best condition for the maximum capacity of the process is selected by comparing the alternative computer simulation results. As a simulation language, Promodel is used which is very useful and easy to use in manufacturing oriented simulation.

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A Study of Wireless Harness Conveyor System (무선 하네스 컨베이어 시스템 연구)

  • Ryu, Hwan Gyu;Ryu, Jeong Gyu;Moon, SangooK
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2016.10a
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    • pp.811-812
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    • 2016
  • Wiring Harness is a medium that transfers the electrical signals necessary to drive a car, and receives a large impact on vehicle performance. Wiring Harness jobs in the workplace material relying on manual worker productivity is low product failure rate is high. Therefore, in this study in order to reduce repetitive humen error, indicated sequentially by the LED lights. We implement a high-performance wireless harness conveyor system.

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A Study on Application of Transverse Flux Linear Motor to Indexer System (인덱서 시스템에 대한 횡축형 선형 전동기의 적용에 관한 연구)

  • Kim J.W.;Ahn J.B.;Kang D.H.;Jang J.H.;Kim J.M.;Bang D.J.;Jeon J.Y.
    • The Transactions of the Korean Institute of Power Electronics
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    • v.9 no.6
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    • pp.553-559
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    • 2004
  • The servo motor is used for the driving power source of the conventional linear conveyor system. The mechanical power transfer system is needed for converting the circular to the linear operation. But this system causes some problems of position error, the necessity of the periodical maintenance. In this paper the study on application of transverse flux linear motor(TFLM) is carried out for the indexer system of LCD processing because TFLM has much thrust per a volume than the conventional motor. TFLM is suitable system for the indexer system because of capacity of acceleration, maximum speed and precision of the position, etc.

A Study on the Fault Tolerant System for the Optimum Performance of Automation Equipment (자동화장비의 최적성능을 위한 고장 허용 시스템에 관한 연구)

  • Song, Min-Woo;Jang, Kyung-Sik
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2009.05a
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    • pp.767-770
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    • 2009
  • In this paper, I studied the "Establishment of Fault Tolerant System" as well as the sensor and cylinder that are general components being used in automation equipments. I design a system that when the sensor breaks down on free flow conveyor, it will be converted to virtual sensor system mode by simulation, also I design IPC(Internal Pressure Cylinder), a basis of various applicable fault tolerant system by analyzing the changing of analog data according to the load of operation. With IPC and the increasing ability of developer, the Fault Tolerant System will be widely applied in the increasment of service time of cylinder, grease pouring time expection, fault recognition of cylinder and etc.

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