• Title/Summary/Keyword: Rapid control prototyping

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Rapid Prototyping of Aero-engine Complex Control Method

  • Lu, Jun;Guo, Ying-Ging;Wang, Bin-Zheng
    • Proceedings of the Korean Society of Propulsion Engineers Conference
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    • 2008.03a
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    • pp.59-62
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    • 2008
  • This paper presents an approach of complex control method(CCM) real-time simulation and rapid prototyping for aero-engine control system and describes its principle and realization in detail. This approach is mainly based on MATLAB/RTW for rapid prototyping from system modeling to embedded implementation. According to the simulation results between automatic code and manual code for an aeroengine multi-variable control method, it shows that this approach is feasible and effective, and not only decreases development cycle but also improves the reliability and universality. So a series of problems can be resolved during the simulation stage and rapid application to prototype testing.

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A Design of Helicopter Control Law Rapid Prototyping Process Using HETLAS (HETLAS를 활용한 헬리콥터 비행제어 법칙 Rapid Prototyping 프로세스 설계)

  • Yang, Chang Deok;Jung, Ho-Che;Kim, Chang-Joo;Kim, Chong-Sup;Kim, Cheol-Ho
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.43 no.8
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    • pp.731-738
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    • 2015
  • The rapid prototyping process and development tool which enable the control law evaluation efficiently are needed to minimize the development cycle, cost and risk of aircraft flight control system. This paper describes a development process that integrates the designed control law into HETLAS to evaluate simulation effectively using nonlinear mathematical models. The desktop engineering simulator was developed using HETLAS for the piloted simulation evaluation of a various control modes and the procedure was developed, which quickly integrates the HETLAS into HQS(Handling Quality Simulator) and HILS(Hardware In the Loop Simulation) environments. This paper presents a rapid prototyping process using HETLAS that significantly shortens the integration process of the control law into the nonlinear math model, HETLAS, and allows the control law designs to be quickly tested in the piloted simulation and HILS environments.

Tele-Control of Rapid Prototyping Machine System Via Internet (인터넷 기반의 원격 제어를 이용한 RP 시스템 개발)

  • 최태림;송용억;강신일
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2001.04a
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    • pp.24-27
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    • 2001
  • Nowadays, increasing demand of the customized products has led to an increased usage of rapid prototyping in the product development. However, the acquisition price of a rapid prototyping equipment is still too high that not every body can afford to buy one. To offer a wide access to the users who need physical prototypes, a connection of the rapid prototyping equipment to the Internet is a viable step. It would allow a large group of customers all over the world to use the manufacturing capability of a service provider offering this kind of manufacturing service. To realize how such an e-manufacturing concept can look like, a LOM-type 3D printer developed at KIST has been used as test site and connected to the Internet. A possible user can log on to the server of the equipment and view his STL file and start the building operation from a remote place. To see whether the operation runs properly, a CCD camera is used to transmit the actual state of operation online. The result so far proves the feasibility of rapid prototyping on the Internet as well as an order-adaptive manufacturing system via web.

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Development of a Rapid Control Prototyping System Based on Matlab and USB DAQ boards (Matlab과 USB DAQ 장치를 이용한 Rapid Control Prototyping System 개발)

  • Lee, Young-Sam;Yang, Ji-Hyuk;Kim, Seuk-Yun;Kim, Won-Sik;Kwon, Oh-Kyu
    • Journal of Institute of Control, Robotics and Systems
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    • v.18 no.10
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    • pp.912-920
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    • 2012
  • In this paper, we propose a new and cost-effective RCP (Rapid Control Prototyping) system based on Matlab/Simulink and a DAQ (Data Acquisition) unit with the high speed USB communication interface. The proposed RCP system has a feature that a computer on which Simulink is running acts as a realtime controller and a DAQ unit performs data acquisition, transmission of the data to and from a computer, and the application of control data received from the computer. For its implementation, we develop 10 communication blocks each of which is constructed by using S-function. In order to increase the data communication speed and thus to reduce the sampling period of the overall control system, we propose to use a batch transfer strategy through the USB interface. The proposed RCP system has several advantages over existing methods such as good maintainability, portability due to the USB interface, low cost, and no necessity for C-code generation even though it can only be applied to control systems with moderate sampling rates. It is expected that the proposed RCP system can be useful in teaching control-related topics to undergraduate and graduate students.

Development of a Real-Time Control System for Rapid Prototyping (Rapid Prototyping을 위한 실시간 제어시스템 개발에 관한 연구)

  • Kang, Moon-Ho;Jeong, Kyung-Min;Park, Yoon-Chang
    • Proceedings of the KIEE Conference
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    • 1999.07b
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    • pp.927-929
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    • 1999
  • In this research a real-time control system was developed without program codings during control system designing procedures. On the Simulink window control system is designed in the form of block diagrams, program codes are produced automatically with the real time workshop package, then C-compiler compiles the program codes. With this automatic real-time program producing mechanism rapid prototyping is realized. To show effectiveness of the proposed system designing scheme a DSP-based DC motor speed control system was constructed and PI and Fuzzy control methods were implemented.

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Development of a Three Dimensional Control System for Implementing Rapid Prototyping Technology (쾌속조형기술의 구현을 위한 3차원 제어시스템 개발)

  • Cho, Sung-Mok
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.8 no.4
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    • pp.775-780
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    • 2007
  • Rapid Prototyping (RP) is a technology that produces prototype parts from 3D computer aided design model data without intermediate processing technology rapidly. CAD model data are created from 3D object digitizing systems but presented just as 2D data when they are printed as a hard copy or displayed on a monitor. However, Rapid Prototyping Technology fabricates 3D objects the same that CAD data because it transforms designed 3D CAD data into 2D cross sectional data, and manufactures layer by layer deposition sequentially. But most of all the small and medium scale companies which produce a toothbrush, a toy and such like provisions are in difficult situations to buy RP system because it is very expensive. In this paper, we propose a 3D control system adopting open source programs for implementing Rapid Prototyping Technology in order that RP system can be purchase at a moderate price.

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Development of a Rapid Control Prototyping Platform for Engine Control System (엔진 제어시스템을 위한 래피드 콘트롤 프로토타이핑 플랫폼에 관한 연구)

  • 송정현;이우택;선우명호
    • Transactions of the Korean Society of Automotive Engineers
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    • v.11 no.1
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    • pp.160-165
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    • 2003
  • The design and implementation of an engine control system has become an important area in developing a new car, but the implementation of an engine control system is becoming a tedious and time-consuming work as the level of complexity increases. In order to shorten the development cycle of the control system, rapid control prototyping (RCP) technique deserves developers' attention. A new RCP platform has been developed for an automotive engine control application. This prototyping system strictly adheres to the layered architecture of the final production ECU, and separates the automatically generated part of software, or the application area, from the hand coded area, which generally carefully designed and tested because of the hardware dependency and the efficiency of microcontroller. The $Matlab{\circledR}$ tool-chain of Mathworks Inc. has been selected as a base environment in this study. A newly developed Engine Control Toolbox of Real-Time $Workshop{\circledR}$ converts a graphically represented control algorithm into optimized application codes and links them with other parts of the software to generate executable code for the target processor.

Development of an Induction Motor Vector Control System Using Simulink/RTW (Simulink/RTW를 이용한 유도전동기 벡터제어시스템 개발)

  • 강문호
    • 제어로봇시스템학회:학술대회논문집
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    • 2000.10a
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    • pp.119-119
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    • 2000
  • In this research an induction motor vector control system was developed using Simulink and RTW(Real Time Workshop). On the Simulink window, control system is designed in the form of block diagrams, program codes are produced automatically with the RTW, then c compiler compiles the program codes. With this automatic real time program producing mechanism rapid prototyping is realized without the time-consuming manual program coding procedures. To show effectiveness of the proposed designing scheme a DSP-based induction motor vector control system was constructed and implemented

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Development of gear type grease lubricator by rapid prototyping (쾌속조형기에 의한 기어식 주유장치의 개발)

  • Wang, Duck Hyun
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.13 no.6
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    • pp.46-53
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    • 2014
  • An automatic grease lubricator provides an adequate amount of fresh grease constantly to any type of rotating machine to minimize friction heat and reduce friction loss. This study seeks to develop an automatic grease lubricator by means of rapid prototyping with a gear-driven mechanism and a controlled operation time. The ultimate design is to lubricate an adequate amount of grease by a simple dip-switch clicking mechanism according to an advanced set cycle. The backlash of the gear was minimized to increase the power, and to increase the power of the mechanism, the binding frequency and the thickness of the coil were changed. To control the rotation cycles of the main shaft according to certain set numbers, different resistances and chips were used in the design of the circuit which controls the electrical signals via a pulse. A digital mock-up was analyzed and the rapid prototyping (RP) trial products were tested with a PCB circuit and grease. An evaluation of the outlet capacity of RP trial products was conducted, as the friction caused by the outlet on the wall surface was an important factor in the operation of the equipment. Finally, a finishing process was applied to decrease the roughness of a surface to a comparable level to test the performance of the product.

Development of a DMC Block for Use with an RCP System and its Application (RCP 시스템에서 사용가능한 DMC (Dynamic Matrix Control) 블록의 개발과 응용)

  • Lee, Young-Sam;Yu, Kwang-Myung
    • Journal of Institute of Control, Robotics and Systems
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    • v.21 no.9
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    • pp.827-835
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    • 2015
  • In this paper, we present the implementation method of Dynamic Matrix Control(DMC) block for use with a Rapid Control Prototyping(RCP) system and consider the speed control of a DC motor using the developed DMC block. Firstly, we briefly introduce a lab-built RCP system. Secondly, we present a method for implementing a DMC block using C-language, which enables the DMC algorithm to be represented in a library block that can be used in a Simulink environment. Finally, we use the developed DMC block for the speed control of a DC motor, through which we show that the DMC-based control system can be easily implemented and applied to the real-time control of systems with relatively fast dynamics.