• Title/Summary/Keyword: 칩 제어

Search Result 503, Processing Time 0.023 seconds

Implementation of Power Line Communication PLC based dimming control chip for fluorescent lamp (전력선 통신(Power Line Communication : PLC)기반의 형광램프용 조광 제어 칩 구현)

  • Nho, Ki-Hwan;Lee, Young-Il;Kim, Jung-Ho;Jung, Bum-Jin
    • Proceedings of the KIEE Conference
    • /
    • 2005.07d
    • /
    • pp.2696-2698
    • /
    • 2005
  • 기존 형광램프의 조도 조절이 가능한 조광가변 전자식 안정기의 경우 조광 설정 스위치와 조광가변 전자식 안정기와의 상호 연계 동작을 위해 안정기와 스위치 사이에 전원선 이외에 별도의 통신선로를 포설해야 하고, 이에 따른 비용 증가와 시공상의 어려움이 있다. 이런 단점을 극복하기 위한 방법 중의 하나로 전력선 통신을 사용할 경우 기축 건물에도 보다 쉽게 시공할 수 있으며, 별도의 통신 선로 포설에 의한 비용 부담도 줄일 수 있다. 본 연구에서는 (주)젤라인에서 개발된 ARM9 코어를 내장한 전력선 통신 칩(XPLC30)을 이용하여 기존 조광가변 전자식 안정기에 전력선 통신 기능을 추가하여 조광설정 스위치와 안정기간의 통신이 전력선을 통하여 이루어질 수 있도록 하고, XPLC30의 여분의 프로세싱 능력을 활용하여 기존의 조광가변 전자식 안정기에서 사용하던 조광 제어 칩의 여러 기능을 XPLC30 칩이 대신 할 수 있도록 하는 전력선 기반의 조광 체어 칩의 구현에 대한 연구를 하고자 한다.

  • PDF

A Study on the Chip Flow Using Finite Element Method (유한요소법을 이용한 칩유동에 관한 연구)

  • Kim, Gyeong-U;Kim, Dong-Hyeon
    • Journal of the Korean Society for Precision Engineering
    • /
    • v.18 no.11
    • /
    • pp.101-106
    • /
    • 2001
  • In this work, an effort is made to investigate the behavior of a chip, from its initial flow to its final breaking stage. The expression for chip flow in grooved tools is verified analytically using FEM. Cutting parameters like velocity and depth of cut have a profound influence on chip flow behavior. Chip curling increases and, for a given tool geometry, effectiveness of the groove increases with increasing depth of cut. The feasibility of tool design using FEM simulations is also demonstrated. Optimization of tool geometry results in better chip control.

  • PDF

Identification of the Chip Form Using Back Propagation Algorithm (백프로파게이션 알고리즘을 이용한 칩 형태의 인식)

  • 심재형;권혁준;백인환
    • Proceedings of the Korean Society of Precision Engineering Conference
    • /
    • 1996.11a
    • /
    • pp.206-211
    • /
    • 1996
  • A major problem in automation of turning operation is the difficulty in obtaining a sufficient and reliable chip control. Therefore it becomes desirable to find a method which can detect the chip form. In this paper, a method of the identification of chip form using output of pyrometer and neural network technique is developed. An efficiency of developed method is examined by experiments in turning and the validity of it is confirmed.

  • PDF

Development of Control System with Android Operation System for Dentistry Integrated Device (치과용 통합공급장치를 위한 안드로이드 운영체제가 내장된 제어시스템 개발)

  • Hwang, Gi-Hyun
    • Journal of the Korea Institute of Information and Communication Engineering
    • /
    • v.16 no.3
    • /
    • pp.635-642
    • /
    • 2012
  • In this paper, a real-time control system with Wi-Fi wireless communication was developed for dentistry Integrated Device. The control system is developed based on the Android platform using S3C6410 ARM core that is equipped with Wi-Fi communication, RS-485, Linux 2.6 and Android 2.0. The control system controls a water purifier, compressor and suction in real-time. The experimental results that the control system was controlled by each control modules connected with a water purifier, compressor and suction. The status values are displayed in real-time using RS485.

Control of Chip Form by Feedrate Adjustment (선삭에서 이송량조정에 의한 칩이 형태 제어)

  • 전재억;하만경;백인환
    • Transactions of the Korean Society of Machine Tool Engineers
    • /
    • v.10 no.3
    • /
    • pp.75-82
    • /
    • 2001
  • The continuous chip in turning operation deteriorates the precision of workpiece and can cause a hazardous condition to operator. Thus the chip form becomes a very important task for reliable turning process. The chip form is identified using the neural network of supervise data Through the measurement of energy radiated from the chip. The feed mechanism os adjusted in order to break continuous chip according to the result of the chip form recognition and it shows a good approach for precision turning operation.

  • PDF

Control of Identifier of Chip Form by Adjusting Feedrate Used Neural Network Algorithm (선삭에서 신경망 알고리즘에 의한 칩 형태의 인식과 제어)

  • Jun, J.U.;Ha, M.K.;Koo, Y.
    • Journal of Power System Engineering
    • /
    • v.4 no.4
    • /
    • pp.108-115
    • /
    • 2000
  • The continuous chip in turning operation deteriorates the precision of workpiece and can cause a hazardous condition to operator. Thus the chip form control becomes a very important task for reliable turning process. Using the difference of energy radiated from the chip, the chip form is identified using the neural network of supervised data. The feed mechanism is adjusted in order to break continuous chip according to the result of the chip form recognition and shows a good approach for precision turning operation.

  • PDF

Performance Evaluation of Chip Breaker Utilizing Neural Network (신경망기법에 의한 칩브레이커의 성능평가)

  • Kim, Hong-Gyoo;Sim, Jae-Hyung
    • Transactions of the Korean Society of Machine Tool Engineers
    • /
    • v.16 no.3
    • /
    • pp.64-74
    • /
    • 2007
  • The continuous chip in turning operation deteriorates precision of workpiece and causes a hazardous condition to operator. Thus the chip form control becomes a very important task for reliable machining process. So, grooved chip breaker is widely used to obtain reliable discontinuous chip. However, developing new cutting insert having chip breaker takes long time and needs lots of research expense due to a couple of processes such as forming, sintering, grinding and coating of product and many different evaluation tests. In this paper, performance of commercial chip breaker is evaluated with neural network which is learned with a back propagation algorithm. For the evaluation, several important elements(depth of cut, land, breadth, radius) which directly influence the chip formation were chosen among commercial chip breakers and were used as input values of neural network. With the results of these input values, the performance evaluation method was developed and applied that method to the commercial tools.

The Rotor Position Sensing Method of BLAC Motor using a Magnetic and Digital Signal Processing Chip (자석과 디지털 신호처리 칩을 이용한 BLAC모터의 회전자 위치검출 방법)

  • Shin, Yun-Su;Oh, Tae-Seok;Kim, Il-Hwan
    • Proceedings of the KIEE Conference
    • /
    • 2008.10b
    • /
    • pp.439-440
    • /
    • 2008
  • 모터의 정밀한 제어를 위해서 홀센서와 모터의 회전자 위치를 검출해내는 엔코더의 사용이 필수적이라 할 수 있다. 본 논문에서는 BLAC모터의 회전자 위치검출 방법으로 자석과 디지털 신호처리 칩을 이용하여 엔코더와 홀센선의 기능을 구현하였다. 이러한 방법의 장점은 기구적인 구조가 단순하여 저가로 구현할 수 있다는 것이다. 단순 2극 자석이 칩의 중심점을 축으로 회전하면 칩 중심 부위의 통합적 홀소자가 칩 표면 자기장을 전압으로 변환한다. 이 신호를 받아 DSP의 아날로그/디지털 변환 기능을 이용하여 절대각도 위치 정보를 검출해내어 기존의 엔코더 성능을 대치하는 연구과정을 본 논문에서 보였다.

  • PDF

Chip Breaking Prediction in Turning Process Considering Cutting Conditions and Chip Breaker Parameters (절삭조건과 칩브레이커 형상변수를 고려한 선삭 가공시의 칩절단 예측)

  • Choi, Jin-Pil;Lee, Sang-Jo
    • Journal of the Korean Society for Precision Engineering
    • /
    • v.16 no.9
    • /
    • pp.191-199
    • /
    • 1999
  • In the continuous cutting process such as turning operation, chip control is thought very important to achieve the unmanned manufacturing system. The prediction of chip breakage under the given conditions is a substantial element for chip control. In this paper, a systematic approach to know the chip breaking region is represented under the concept of equivalent parameters. to Verify the suggested model, cutting experiments are executed with a commercial type and two other type chip breakers which have modified chip breaker parameters such as land width, groove width and nose radius. predicted chip breaking regions using the 3D cutting model agrees with those obtained from the experiments.

  • PDF

Design and Implementation of ISDN System On a Chip (ISDN 시스템 통합 칩 설계 및 구현)

  • 이제일;황대환;소운섭;김진태
    • The Journal of Korean Institute of Communications and Information Sciences
    • /
    • v.26 no.12C
    • /
    • pp.273-279
    • /
    • 2001
  • This paper describes a design and implementation of ISDN system on a chip which provides ISDN service and used to develop a low-price multimedia communication terminal. This ISDN SOC is an ISDN system control chip which has 32bit RISC processor, and it includes ISDN S interface transceiver, G.711 voice CODEC, PC interface for data communication, ISDN protocol which includes Q.931 call control protocol and internet protocol. It provides good solution to develope ISDN terminal equipment and ISDN terminal adaptor which connected with basic rate interface, because it minimize external peripheral devices.

  • PDF