• 한국신재생에너지학회:학술대회논문집
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• 2006.11a
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• pp.376-379
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• 2006

In this paper, stack voltage monitoring module is developed which monitor cell voltage of the fuel cell stack and transfer it to the main controller for monitoring fault and stopping drive when the trouble is happened in the fuel cell stack. Especially, the circuit, for monitoring each cell voltage of several hundreds cells in stack, is designed and analyzed. The connector is also developed for making wire harness simple and low cost because wire harness is complicated when the cells are connect each monitoring circuit.

• IE interfaces
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• v.11 no.2
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• pp.93-106
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• 1998

This paper suggests a stereo vision-based algorithm for the 3-dimensional inspection of a crimped terminal. The crimped terminal is one of wire harness assemblies which transmit current or signals between a pair of electrical or electronic assemblies. Four types of nonconformities considered includes terminal rolling, band up/down, twist, and crimp height. To obtain stereo image correspondence, an algorithm using Hough transform is proposed. Coordinate transform is then applied to evaluate the degree of 3-dimensional nonconformities. The algorithm has been successfully tested on a number of real specimens collected from a wire harness factory. The test results show the feasibility of the proposed algorithm.

• 제어로봇시스템학회:학술대회논문집
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• 2000.10a
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• pp.111-111
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• 2000

The research of network system, being used to reduce automotive wiring harness, is reaching to the development of by-wire system. It is by-wire system that apply IVN(In-Vehicle-Network) to steering, braking system, and it has the advantage of mass-decreasing, easy to diagnose fault and so on. But until now, many developed device can't satisfied with reliability that system have ever had. So redundancy of each network module, i.e., It is only way to make backup module. This paper researches development of network module and redundancy management of backup module when error occurred for implementation of brake-by-wire system.

• Journal of the Korea Society of Computer and Information
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• v.29 no.1
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• pp.77-84
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• 2024

In this paper, we propose a method for accurately and rapidly detecting defects in wire harnesses by utilizing computer vision to calculate six crucial measurement values: the length of crimped terminals, the dimensions (width) of terminal ends, and the width of crimped sections (wire and core portions). We employ Harris corner detection to locate object positions from two types of data. Additionally, we generate reference points for extracting measurement values by utilizing features specific to each measurement area and exploiting the contrast in shading between the background and objects, thus reflecting the slope of each sample. Subsequently, we introduce a method using the Euclidean distance and correction coefficients to predict values, allowing for the prediction of measurements regardless of changes in the wire's position. We achieve high accuracy for each measurement type, 99.1%, 98.7%, 92.6%, 92.5%, 99.9%, and 99.7%, achieving outstanding overall average accuracy of 97% across all measurements. This inspection method not only addresses the limitations of conventional visual inspections but also yields excellent results with a small amount of data. Moreover, relying solely on image processing, it is expected to be more cost-effective and applicable with less data compared to deep learning methods.

• Proceedings of the Korean Society of Computer Information Conference
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• 2019.01a
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• pp.295-296
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• 2019

본 논문은 항공기내의 주요 항공전기 전자 부분품을 연결하여 주는 배선조립체의 연속성을 시험할 수 있는 점검기의 개발에 관한 것이다. 기존의 항공기 내의 배선조립체의 연속성 시험은 디지털 멀티미터의 저항점검 기능을 통해 이루어지고 있었으나, 측정된 저항값이 정상인지 비정상인지의 판단은 정비사의 경험에 의한 판단에 의존할 수밖에 없는 문제가 있다. 제안한 점검기는 정비사가 예상되는 배선의 AWG 규격 및 길이를 입력하면 배선조립체의 AWG 규격별, 길이별 SPEC'의 저항값을 계산하여 측정된 저항값이 정상인지 비정상인지 확인할 수있는 메시지를 시현하게 하여 정비사의 정비 부담을 줄여줄 수 있다. 또한 본 시스템은 오픈소스를 이용하여 저비용으로 제작가능하게 하여 많은 정비사들이 사용할 수 있도록 하는 장점이 있다.

• The Transactions of the Korean Institute of Electrical Engineers P
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• v.58 no.4
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• pp.495-498
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• 2009

To improve the efficiency of the high voltage cable for BLU(backlight unit) of TFT-LCD(Thin Film Transistor-Liquid Crystal Display), the analysis for the trial products(UL3239, UL3633) is conducted by using SEM(scanning electron microscope) and EDX(Energy Dispersive X-ray Spectroscopy). The result that it is possible to accumulate the know-how to about stranding pitch through effective improvement of stranding process. The troubles which are the badness of withstanding voltage and tensile strength etc. are solved by development of excellent material. Furthermore, phenomenon of conductor unfasten in the harness work is solved by improvement of the stranding wire process.

• Journal of the korean Society of Automotive Engineers
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• v.18 no.5
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• pp.1-9
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• 1996

에어백 관련기술은 차체 충돌특성 평가, 승객거동분석, 좌석벨트/조향축/에어백의 조화설계 등을 포함하는 시스템 엔지니어링 기술과 충돌감지센서, 가스발생기, 모듈 등을 포함하는 주요 기능 부품의 설계 및 제조기술로 구분된다. 이 중 시스템 엔지니어링 기술은 국내의 완성차 업계의 노력에 의하여 선진국의 수준에 근접하고 있으나 부품의 설계 및 제조기술은 매우 취약한 상황이다. 80년대 후반부터 각국의 에어백 관련 특허 출원 건수가 급증하고 있으며 새로운 기능의 부품들이 속속 개발되고 있다. 에어백 기술의 발전방향은 소형화, 경량화, 저렴화로 요약된다. 차량의 전방 충돌에 대비한 에어백이 주종을 이루고 있으나 측면 충돌에 대비한 side bag, 뒷자석 승객을 보호하기 위한 rear bag 등이 개발되고 있고 최근에는 버스 등 대형차량이나 모터사이클 등에도 에어백을 부착하기 위한 연구가 추진되고 있다. 에어백은 충돌센서(crash sensor), 가스발생장치(inflator), 공기주머니(bag), 덮개(cover), 배선(wire harness) 등으로 구성된다. 이들 중에서 공기주머니, 덮개, 가스발생장치를 결합한 부분 조립품을 모듈(module)이라고 부르고 있다. 이하에서는 에어백을 구성하는 주요 기능부품들의 종류, 특성과 기술개발 동향을 알아보기로 한다.

• IE interfaces
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• v.8 no.1
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• pp.5-13
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• 1995

Automated vision inspection has become a vital part of computer related industries. Most of the existing inspection systems mainly utilize black and white images. In this paper, we consider an application of automated vision inspection in which cable color has to be recognized in order to detect the quality status of assembled wire harness. A back-propagation neural network is proposed to classify seven different cable colors. To represent a single point in image space, we use the ($L^*,\;a^*,\;b^*$) model which is one of commonly used color-coordinate systems in image processing. After training the neural network with ($L^*,\;a^*,\;b^*$) data obtained from color image, we tested its performance. The results show that the neural network is able to classify cable colors with high performance.

• Proceedings of the KIEE Conference
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• 2000.07d
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• pp.2542-2544
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• 2000

In this paper, CAN(Controller Area Network)is used to solve the wire harness problem in the outside mirror of automobile which has a lot of functions in narrow space. If the number of wires is reduced, it has benefits of lower product cost and maintenance. CAN was originally developed by the German company Robert Bosch for use in the car industry to provide a cost-effective communications bus for in car electronics and as alternative to expensive and cumbersome wiring looms. CAN controller is a serial communication protocol which efficiently supports distributed real-time control with a very high level of security. The communication between master CAN controller and slave CAN controller is realized and controller's performance is tested by experiment.

• Journal of the Korea Institute of Military Science and Technology
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• v.5 no.2
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• pp.123-131
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• 2002

ASC(Avionics System Computer) was developed to control weapon delivery and navigation sensors, and to perform man-machine interface with pilots for XKO-1 aircraft. The data communications between ASC and UFC(Up Front Controller), DC(Data Concentrator) were implemented by RS422 serial data bus. Also, SCIL(Standard Computer Interface Library) was designed to facilitate control and management of the computer hardware resources and is embedded in the ASC. These structures have a merit of noise immunity and a reduction of wire harness for signal lines, and enable OFP(Operational Flight Program) programmers to use the SCIL easily without knowing hardware details. Manufactured system was on installed on XKO-1, and peformed for BIT(Built In Test) and interface test with UFC and DC. The test results show that it meets the system requirements.