• Title/Summary/Keyword: wiring

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Development of the High-Reliability PLC-CAN Communication Module for Construction Equipment (건설 중장비용 고신뢰성 PLC-CAN 통신 모듈 개발)

  • Ku, Ja-Yl;Jang, Se-Bong
    • Journal of the Institute of Electronics and Information Engineers
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    • v.51 no.10
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    • pp.228-234
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    • 2014
  • In the case of construction equipment, internal wiring has a very complicated structure such as an electrical wiring and hydraulic equipments. Because of these complex wiring, a lot of time is spent on maintenance and equipment manufacturing. In this paper, we design and implementation of the high-reliability PLC(Power Line Communication) -CAN(Controller Area Network) communication module to reduce electrical wiring of the construction equipment.

Durability Prediction of Door W/H System Using FEM Analysis (전면 도어 와이어하니스 시스템의 내구 수명 예측에 관한 연구)

  • Kim, Byeong Sam;Lim, Kwangkyu
    • Journal of Auto-vehicle Safety Association
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    • v.5 no.2
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    • pp.51-56
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    • 2013
  • In vehicle's door wiring harness (W/H) system is more toward to arrange a passenger compartment than a hinge and a weatherstrip. An opening/closing member of a vehicle is attached to a vehicle by a hinge in a manner enabling easy opening and closing of the opening/closing member. Such members include doors, such as side-doors and rear doors, and other opening/closing members, such as trunk lids. This article gives some insight into the dimensioning process, with special focus on large deflection analysis of wiring harness(W/H) in vehicle's door structures for durability problem. The Finite elements analysis for door wiring harness(W/H) is used for residual stresses and dimensional stability with bending flexible. Durability test data for slam test specimens were compared with the numerical predicted fatigue life for verification. The final testing of the component combines the effects of these microstructural features with the complex stress state arising from the combined service loading and residual stresses.

A Development of Control System for Agricultural Machinery by using Distributed Control (분산제어방식을 적용한 콤바인 농기계의 제어기 개발)

  • Yang, Sung-Soo;Park, Kyoung-Seok;Shin, Dong-Won;Yi, Jae-Shik
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.10 no.6
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    • pp.39-45
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    • 2011
  • Due to the introduction of the electronic control systems, agricultural machine is getting complicated with its special function. The complex electronics system increases difficulty of maintenances in the wiring harness system. The heavy wiring harness has some poor reliability and workability in the production line of manufacture also. So, in this study, some small local control modules are developed to complement the difficulties with the benefits of distributed control system. All of the local control modules are connected by using CAN communication. This system developed this study has the advantages of modification or alteration of wiring and local modules. All the sensors and actuators can be easily monitored and controlled by the main controller with the appropriate communication protocol made by in this study.

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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Application of Plate and Circumferential Wiring with Resin to Bilateral Mandibular Fractures in a Calf: Case Report

  • Yu, Yong;Kim, Namsoo;Heo, Suyoung
    • Journal of Veterinary Clinics
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    • v.37 no.6
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    • pp.363-366
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    • 2020
  • A 2-month-old, 50 kg male Korean native calf was referred with bilateral mandibular fractures. The bilateral mandible was hanging loose, with inability to use the jaw, indicated by excessive salivation. Radiography revealed a long oblique fracture in the right mandible, and a short oblique fracture in the left mandible. Computerized Tomography, a different form of radiography, revealed the fracture in the left mandible to be a comminuted fracture. In order to stabilize the bilateral mandible fractures, a combination of bone plate and wiring was applied; in addition, resin was applied to enhance stabilization of the mandible. Six weeks after surgery, the calf was able to masticate and ruminate well. In this case, application of the plate and wiring with resin to bilateral mandibular fractures presented a successful functional recovery. Accordingly, the combination of bone plate and wiring with resin can be an effective technique for treating mandibular fractures.

Wiring Test Method of Projectile using Z-Segmentation Algorithm (Z-Segmentation 알고리즘을 이용한 발사체의 배선 점검 방법)

  • Oh, Se-Kwon;Lee, Dae-Hyun;Kim, Yung-Sung;An, Jong-Heum
    • Journal of Advanced Navigation Technology
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    • v.25 no.5
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    • pp.370-376
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    • 2021
  • development of the aerospace industry is increasing the research of projectiles. In addition, many tests are under way and many failures occur accordingly. Projectiles should be able to minimize failures because they are more dangerous than other electronic equipment. Therefore, it is necessary to verify wiring before powering the projectile. Accordingly, the wiring status was verified by resistance measurements. However, the wiring test of the previous resistance measurement method cannot be accurately measured due to devices such as capacitors and inductors in the projectile circuit. In this paper, impedance is measured in the connection state of cables and projectiles using a TDR meter. The Z-Segmentation algorithm is used to set the reference value for the measured steady state impedance. The Z-Segmentation algorithm first finds the peak values of the impedance waveform using a Kalman filter and obtains the final impedance peak segment through segmentation. In this way, the wiring status is determined based on the reference value for the normal state of the wiring.

A Study on the Establishment of Preventive Measures for Electric Fires Using the 4M Technique (4M 기법을 활용한 전기화재 예방대책 수립 연구)

  • Oh, Teakhum;Park, Chanseok
    • Journal of the Korea Safety Management & Science
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    • v.23 no.4
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    • pp.23-29
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    • 2021
  • The purpose of this study is to reduce the probability of occurrence of electric fires as a preemptive preventive measure, and to strengthen the capability of preventing electric fires by strengthening the cooperative function between electric fire-related departments and establishing a cooperative system. In this study, the general aspects of electric fires were identified by reviewing the literature such as ignition mechanisms of electric fires. And the major electrical fires that occurred in the last 10 years were classified into ignition factors (short circuit, overload/overcurrent, and earth leakage/ground fault) and ignition sources (wiring/wiring appliances, electrical equipment/household appliances). And the 4M technique was used to analyze the potential causes of ignition at the fire site and to suggest preventive measures. In the case In this study, out of 48 electrical fires in the past 10 years, 16 short-circuit fires, 3 overload/overcurrent fires, 3 short-circuit and earth fault fires, 16 fires in wiring/wiring appliances, and 10 fires in electrical equipment/home appliances classified as cases. And prevention measures were presented in terms of human, machine, media, and management by using the 4M technique. For the preemptive prevention of electric fires, strengthening the compulsory electrical safety inspection and making it mandatory to report when new or expanding electric facilities, charging a fee for electric safety inspection for detached houses and granting benefits subject to inspection completion, improvement of the electric safety voluntary inspection table and safety indications; It was suggested as a policy to organize and operate electrical safety inspection personnel in a two-person team (mixed), establish a close work cooperation system with related organizations, and strengthen electrical safety education and publicity.

Bipolar Hemiarthroplasty in Unstable Intertrochanteric Fractures with an Effective Wiring Technique

  • Jae-Hwi Nho;Gi-Won Seo;Tae Wook Kang;Byung-Woong Jang;Jong-Seok Park;You-Sung Suh
    • Hip & pelvis
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    • v.35 no.2
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    • pp.99-107
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    • 2023
  • Purpose: Bipolar hemiarthroplasty has recently been acknowledged as an effective option for treatment of unstable intertrochanteric fracture. Trochanteric fragment nonunion can cause postoperative weakness of the abductor muscle and dislocation; therefore, reduction and fixation of the fragment is essential. The purpose of this study was to perform an evaluation and analysis of the outcomes of bipolar hemiarthroplasty using a useful wiring technique for management of unstable intertrochanteric fractures. Materials and Methods: A total of 217 patients who underwent bipolar hemiarthroplasty using a cementless stem and a wiring technique for management of unstable intertrochanteric femoral fractures (AO/OTA classification 31-A2) at our hospital from January 2017 to December 2020 were included in this study. Evaluation of clinical outcomes was performed using the Harris hip score (HHS) and the ambulatory capacity reported by patients was classified according to Koval stage at six months postoperatively. Evaluation of radiologic outcomes for subsidence, breakage of wiring, and loosening was also performed using plain radiographs at six months postoperatively. Results: Among 217 patients, five patients died during the follow-up period as a result of problems unrelated to the operation. The mean HHS was 75±12 and the mean Koval category before the injury was 2.5±1.8. A broken wire was detected around the greater trochanter and lesser trochanter in 25 patients (11.5%). The mean distance of stem subsidence was 2.2±1.7 mm. Conclusion: Our wiring fixation technique can be regarded as an effective additional surgical option for fixation of trochanteric fracture fragments during performance of bipolar hemiarthroplasty.

Electrical and Fire Prevention Measures through Improvement of Indoor Wiring, Outlets and Plugs (옥내배선, 콘센트 및 플러그 개선을 통한 전기화재 예방대책)

  • Jeung, Sueng Hyo;An, Hui-Seok;Lee, Yong-Su;Kim, Chang-Eun
    • Journal of the Korea Institute of Construction Safety
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    • v.1 no.1
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    • pp.31-39
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    • 2018
  • It is reported that about 20 % of all fires in Korea are caused by the electric equipment and installations. In complex and large-scale buildings, the sizes of electric fires are becoming larger as property damage and casualties increase. Among the causes of various electric fires, fire by short circuit accounts for about 71.5% of overall fires, and in the classification by electric equipment and installation, fire caused by wiring and wiring equipment accounts for approximately 38.3% of overall fires. The purpose of this study is to propose methods to prevent electric fires due to short circuit by improving indoor wiring currently in use and to find the fundamental measures to prevent wiring equipment caused fires by improving the socket and plug which are commonly used in wiring equipment. It is expected that the electric fire prevention measures presented through this study can be used as a measure to protect many people and properties by eliminating the root cause of electric fire.

Using a Modular BOM for Cost Calculation in Wiring Harness (Modular BOM을 활용한 와이어링 하네스 원가 산출)

  • Im, Chang-Sung;Park, Hoon;Kang, Jung-Tae
    • Korean Journal of Computational Design and Engineering
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    • v.21 no.1
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    • pp.61-68
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    • 2016
  • Since past till now, automotive wiring harness has been designed and produced under the method of part number list. However, the number of options has increased gradually on the basis of customer's needs and car manufacturer's policy, thereby bringing about an increase in the number of classified parts. Because of a large number of classified parts, cost estimates for manufacturing and production planning are more important than ever. However, the pre-existing manufacturing bill of material abbreviated as BOM is only focused on the list of materials used for actual manufacturing, and as such there have been limits to other fields or areas of usage except for manufacturing. In essence, the present paper is concerned with our study conducted on modular BOM as one of planning BOM. On such basis, we have been able to completely use a method by which to have access, make an option units' calculation in wiring harness manufacturing, and build an efficient system for cost estimates in manufacturing as well.