• Title/Summary/Keyword: Harness

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Implementation of Behavior Notification System for Guide Dog Harness Using IMU and Accelerometer Sensor (IMU 및 가속도 센서를 이용한 안내견 하네스 행동 알림 시스템 구현)

  • Ahn, Byeong-Gu;Noh, Yun-Hong;Jeong, Do-Un
    • Journal of the Institute of Convergence Signal Processing
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    • v.16 no.1
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    • pp.15-21
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    • 2015
  • In this paper, a behavior notification system of the harness of a guide dog is implemented for a blind person to get helps for environmental and situational awareness while walking with the guide dog. IMU modules is attached on the guide dog's harness saddle and the acceleration sensor belt is mounted on its thigh. Gait estimation and behavior judgement are performed by recording and analyzing the outputs of the sensors. Performance analysis for seven different kinds of behaviors has been done. The seven different behaviors, which the guide dog recognizes, are descending stairs, climbing stairs, uphill, downhill, stop, flat road, and selective disobedience. Results for the performance analysis show that the average success rate of the behavior rule estimation of harness of the guide dog is 92.78% and the behavior notification system can be effectively used in real situations.

Lineage of Horse Bridle Kept in Yatsushiro Shrine in Kamishima (가미시마 야츠시로 신사(神島八代神社) 소장 재갈의 계보)

  • Shimizu, Yasuji
    • Korean Journal of Heritage: History & Science
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    • v.49 no.4
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    • pp.156-179
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    • 2016
  • Yatsushiro Shrine on the island of Kamishima located in Ise Bay, Japan, contains many cultural artifacts with ancient mirrors in significant numbers. Also included among the artifacts are horse gags and reins that are clearly of the same lineage as the horse harnesses from the unified Shilla era and Goryeo era in Korean history. Type classification and position establishment were carried out on the horse reins kept in the Yatsushiro shrine, including items such as those mentioned previously. Type A horse harness can be classified into 3 types. Based on this classification scheme, the harness type in the Yatsushiro shrine was found to belong to the most recent period. The blacksmith workshop that made the harness was producing iron wares and bronze wares, and it possessed metal forging and metal casting technologies. Note, however, that it was primarily a workshop where iron wares were made. The parts that were visible from the outside when the harness was attached were made from composite bronze, and the reins and bridle linkage were made from iron. Such integration of bronze ware production techniques and iron ware production techniques was an attempt at enhancing the practicality and embellishments on the harness.

Prediction Method of Useful Life of PVC Tape for Wiring Harness (와이어링 PVC 테이프 내구 수명 예측)

  • Kim, Seong-Woo;Jung, Won-Wook;Park, Jong-Koo;Ahn, Mi-Jung
    • Journal of Applied Reliability
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    • v.7 no.4
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    • pp.163-172
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    • 2007
  • Phenomenon, such as hardening, cracking or breaking etc.. of PVC tape for wiring harness by aging were detected on driven automobile in field. Hardening or cracking of PVC tape were confirmed decline of elongation by surrounding stress. The accelerated heat aging test was carried out applying temperature most important factor of aging, and then deduced an equation of useful life using arrhenius model. Prediction method of useful life of PVC tape was developed using miner rule calculating damage value by thermal energy classified temperature by matching deduced equation of useful life and measured temperature value on driven automobile in field.

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A Development of Feature-based Wire Harness Drawing System (특징형상 기반 자동차 전장도면설계 시스템 개발 연구)

  • 이상준;이수홍
    • Korean Journal of Computational Design and Engineering
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    • v.1 no.3
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    • pp.177-188
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    • 1996
  • An approach to providing computational support with an expert shell is discussed with the scope of an industrial wire harness design, especially at a manufacturing stage. Key issues include the development of an architecture that supports a frequent design change among engineers associated with different parts of the wiring design process and the development of hierarchical representations that capture the different characteristics (e.g., connectivity, configuration) of the harnesses. The abstraction of design information results in features, while the abstraction of drawing elements leads to the definition of objects. These abstractions are essential for efficient transactions among people and computer tools in a domain that involves numerous interacting constraints. In this paper the strategy for the problem decomposition, the definition of features, and the ways in which features are shared by various operations and design changes, are discussed. We conclude with a discussion of some of the issues raised by the project and the steps underway to address them.

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Concurrent Engineering System for an Automation of Wiring Harness Design (전장 설계 자동화를 위한 동시공학 시스템)

  • 이수홍;최두선
    • Transactions of the Korean Society of Automotive Engineers
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    • v.4 no.2
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    • pp.32-49
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    • 1996
  • An approach to providing computational support for concurrent design is discussed in the context of an automobile wiring harness design problem. Key issues include the development of an architecture that supports collaboration among specialists, the development of hierarchical representations that capture different characteristics of the design, and decomposition of tasks to achieve a tradeoff between efficiency and robustness of the system. We present an architecture in which the main design tasks are supported by agents-asynchronous and semi-autonomous modules that automate routine design tasks and provide specialized interfaces for working on particular aspects of the design. The agent communication and coordination mechanisms permit members of an engineering team to work concurrently, at different levels of detail and of different versions of the design. The design is represented hierarchically, with detailed models maintained by the participating agents. In conjunction with the architecture and design representations, issues pertaining to the exchange of information among different views of the design, management of dependencies and constraints, and propagation of design changes are discussed.

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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.

Applications of a Quadrant plane Amorphous Silicon Photo Position Sensor (4분면 아몰퍼스 실리콘 Photo 위치센서의 응용)

  • 김철한;신영록;사공건
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2000.11a
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    • pp.445-447
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    • 2000
  • The terminal and core(wire conductor) in a Harness processing is connected by putting them in a applicator by virtue of a manual operation. A normal or abnormal condition of crimping connections is nearly determined by a skilled worker. In general, a skilled worker operates a press motor with a foot switch by pressing on foot and puts a wire conductor into a press with one hand. By doing so, sufficient efficiency is not obtained by a worker. In this paper, a basic study has done to make improve an efficiency by finding the normal arrangement out as to whether a terminal and wire conductor in Harness are placed on the right position or not with a quadrant plane photo position sensor.

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Detection of Object Images for Automatic Inspection based on Machine Vision (머쉰비전기반 자동검사를 위한 대상 이미지 검출)

  • Hong, Seung-woo;Hong, Seung-beom;Lee, Kyou-ho
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2019.05a
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    • pp.211-213
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    • 2019
  • This paper proposes an image detection method, which can detect images regardless of the location and the direction of an image, required for automatic inspection based on machine vision technologies. A cable harness is considered in this paper as an inspection object, and implementation results of a technology of being applicable to a real cable harness production process is presented.

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An Autonomous Operational Service System for Machine Vision-based Inspection towards Smart Factory of Manufacturing Multi-wire Harnesses

  • Seung Beom, Hong;Kyou Ho, Lee
    • Journal of information and communication convergence engineering
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    • v.20 no.4
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    • pp.317-325
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    • 2022
  • In this study, we propose a technological system designed to provide machine vision-based automatic inspection and autonomous operation services for an entire process related to product inspection in wire harness manufacturing. The smart factory paradigm is a valuable and necessary goal, small companies may encounter steep barriers to entry. Therefore, the best approach is to develop towards this approach gradually in stages starting with the relatively simple improvement to manufacturing processes, such as replacing manual quality assurance stages with machine vision-based inspection. In this study, we consider design issues of a system based on the proposed technology and describe an experimental implementation. In addition, we evaluated the implementation of the proposed technology. The test results show that the adoption of the proposed machine vision-based automatic inspection and operation service system for multi-wire harness production may be considered justified, and the effectiveness of the proposed technology was verified.

Prediction of Thermal Conductivity of Spun Carbon/Phenolic Composites (스펀 탄소/페놀 복합재의 열전도도 예측)

  • 서부호;조영준;강태진;윤재륜
    • Proceedings of the Korean Society For Composite Materials Conference
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    • 2002.10a
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    • pp.48-51
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    • 2002
  • This paper predicted the thermal conductivity of spun carbon/phenolic composites by the thermal resistance method. This method uses the analogy between the diffusion of heat and electrical charge. To verify the theoretical predictions, the thermal conductivity of spun carbon/phenolic composites was examined experimentally. The reported thermal conductivities of graphite/epoxy composite of a eight harness satin laminate was used of the comparison with the prediction values of the model and it was noticed that a good agreement has been found.

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