• Title/Summary/Keyword: Guidance and Inspection

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Towards UAV-based bridge inspection systems: a review and an application perspective

  • Chan, Brodie;Guan, Hong;Jo, Jun;Blumenstein, Michael
    • Structural Monitoring and Maintenance
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    • v.2 no.3
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    • pp.283-300
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    • 2015
  • Visual condition inspections remain paramount to assessing the current deterioration status of a bridge and assigning remediation or maintenance tasks so as to ensure the ongoing serviceability of the structure. However, in recent years, there has been an increasing backlog of maintenance activities. Existing research reveals that this is attributable to the labour-intensive, subjective and disruptive nature of the current bridge inspection method. Current processes ultimately require lane closures, traffic guidance schemes and inspection equipment. This not only increases the whole-of-life costs of the bridge, but also increases the risk to the travelling public as issues affecting the structural integrity may go unaddressed. As a tool for bridge condition inspections, Unmanned Aerial Vehicles (UAVs) or, drones, offer considerable potential, allowing a bridge to be visually assessed without the need for inspectors to walk across the deck or utilise under-bridge inspection units. With current inspection processes placing additional strain on the existing bridge maintenance resources, the technology has the potential to significantly reduce the overall inspection costs and disruption caused to the travelling public. In addition to this, the use of automated aerial image capture enables engineers to better understand a situation through the 3D spatial context offered by UAV systems. However, the use of UAV for bridge inspection involves a number of critical issues to be resolved, including stability and accuracy of control, and safety to people. SLAM (Simultaneous Localisation and Mapping) is a technique that could be used by a UAV to build a map of the bridge underneath, while simultaneously determining its location on the constructed map. While there are considerable economic and risk-related benefits created through introducing entirely new ways of inspecting bridges and visualising information, there also remain hindrances to the wider deployment of UAVs. This study is to provide a context for use of UAVs for conducting visual bridge inspections, in addition to addressing the obstacles that are required to be overcome in order for the technology to be integrated into current practice.

Development of Guide and Facility Management App by using Augmented Reality and QR Code (증강 현실과 QR 코드를 이용한 안내 및 설비 관리 앱 개발)

  • Cho, Kwangmoon
    • Journal of Digital Convergence
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    • v.12 no.4
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    • pp.245-249
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    • 2014
  • An app based on the augmented reality and QR codes is developed in this paper. This app is for guidance to the harbor and management the facilities in ships. Using the smart device app people could receive guidance the course to visit Mokpo harbor and information for the port and ship's facilities. Through the utilization of smart devices, the app is easy to find the desired destination to and provide the convenience of tourists. In addition, by using the QR code people could see an explanation of the ship's facilities and write the inspection reports for the facilities.

A Study on Improvement Plan to Enhancing the Effectiveness of Technical Guidance Project for Safety Control of Small Construction Site (소규모건설현장 안전관리를 위한 기술지도 사업의 실효성 제고를 위한 개선방안 연구)

  • Lim, HyoungChul;Beak, NakKyu;Kim, DaeYoung;Jeong, SeongChoon
    • Korean Journal of Construction Engineering and Management
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    • v.19 no.6
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    • pp.79-85
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    • 2018
  • The government and of the Safety and Health Corporation have continuously carried out safety activities such as supervision, inspection, technical guidance and financial support in order to reduce accidents on the construction site. However, the number of disasters on the construction site is increasing every year, Which accounts for more than 80% of the total number of casualties. It is necessary to investigate the implementation status of safety and health management in the field of small-size construction site, and to provide the appropriate technical guidance plan to the relevant work places. Also, it is necessary to reduce the disaster at the small-size construction site, The purpose of this study is Improvement Plan to Enhancing the Effectiveness of Technical Guidance Project for Safety Control of Small Construction Site.

Intelligentization of Landscape Bamboo Buildings Based on Visual Data Transmission and 5G Communication

  • ke Yu Kai
    • International Journal of Advanced Culture Technology
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    • v.11 no.1
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    • pp.389-394
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    • 2023
  • Based on intelligent visual information and 5G, this paper studies the intelligent visual communication of landscape bamboo buildings, and provides a new method of intelligent perception and interactive computing for the real world, which can represent, model, Perception and cognition; through the integration of virtual and real, the situational understanding of the human-machine-material fusion environment and the interaction with nature. The 5G network can well meet the combination of high-bandwidth uplink transmission and low-latency downlink control. At the same time, 5G-based AR intelligent inspection, remote operation and maintenance guidance, and machine vision inspection. Taking the bamboo building as an example, through field inspections to analyze tourism Bamboo buildings before and after development, and the intelligentization of bamboo buildings based on 5G and visual modeling.

ISO 9000 Series Standards and Quality System Requirements (ISO 9000 시리즈의 적용범위 및 품질시스템 구성 요소)

  • Chun, Young-Ho
    • IE interfaces
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    • v.7 no.2
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    • pp.25-30
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    • 1994
  • ISO 9000 is a series of several standards(ISO 8402, 9000, 9001, 9002, 9003, 9004,...). ISO 9000 is a standard explaining fundamental concepts, defining important terms, and providing guidance for selecting among the other standards. ISO 9001, the most comprehensive standard to ensure quality in design, development, production, installation, and servicing. ISO 9002 is used to assure conformance to specification, installation and servicing. ISO 9003 has the least requirement among three standards and applies to inspection and final testing. ISO 9004 is a standard developed for internal use only and not applicabe to contractual arrangements. In this paper, quality system requirements for ISO 9000 series are also specified.

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Deep Neural Network-Based Critical Packet Inspection for Improving Traffic Steering in Software-Defined IoT

  • Tam, Prohim;Math, Sa;Kim, Seokhoon
    • Journal of Internet Computing and Services
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    • v.22 no.6
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    • pp.1-8
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    • 2021
  • With the rapid growth of intelligent devices and communication technologies, 5G network environment has become more heterogeneous and complex in terms of service management and orchestration. 5G architecture requires supportive technologies to handle the existing challenges for improving the Quality of Service (QoS) and the Quality of Experience (QoE) performances. Among many challenges, traffic steering is one of the key elements which requires critically developing an optimal solution for smart guidance, control, and reliable system. Mobile edge computing (MEC), software-defined networking (SDN), network functions virtualization (NFV), and deep learning (DL) play essential roles to complementary develop a flexible computation and extensible flow rules management in this potential aspect. In this proposed system, an accurate flow recommendation, a centralized control, and a reliable distributed connectivity based on the inspection of packet condition are provided. With the system deployment, the packet is classified separately and recommended to request from the optimal destination with matched preferences and conditions. To evaluate the proposed scheme outperformance, a network simulator software was used to conduct and capture the end-to-end QoS performance metrics. SDN flow rules installation was experimented to illustrate the post control function corresponding to DL-based output. The intelligent steering for network communication traffic is cooperatively configured in SDN controller and NFV-orchestrator to lead a variety of beneficial factors for improving massive real-time Internet of Things (IoT) performance.

Development of Hybrid Career Coaching Model and Effect Analysis (하이브리드 진로코칭 모형 개발 및 효과분석)

  • Go, Eun-Hyeon;Park, Hye-Rim;Kim, Do-Hyeon
    • The Journal of Korean Association of Computer Education
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    • v.18 no.6
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    • pp.43-51
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    • 2015
  • In this paper, we develops the hybrid career coaching model combined the face to face and the E-coaching, and applies students of childhood education for career guidance. The presented hybrid career coaching manages a profile and state information and a remote access between the coach and coachee on Internet. Then, online part of hybrid coaching deals with saving the data, and understand of the situation of the coachee if it is necessary. And face to face part of hybrid coaching have a conversation, the checking, counsel and introspection if the coach needs. Presented hybrid career coaching model has th procedure of 6 steps such like career coaching guidance, self-understanding, career decision-making, establishment of the career execution planning, execution plan and action will inspection and execution result inspection. Proposed hybrid career coaching is possible to understand coachee's current state on the career map, realize the importance of the execution strategy and maximize the efficiency and effectiveness self-regulation capacity.

Comparison and Review of Fatigue Design Criteria by the Structural Analysis of Steel Truss Bridges (강재 트러스교의 해석에 의한 피로설계기준 비교 및 검토)

  • Kim, Sang-Seog;Jung, Hie-Young
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.7 no.3
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    • pp.241-249
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    • 2003
  • The service life of steel bridges can be assured only when their strength, serviceability and fatigue safety are fulfilled. However, at the present time, the continuous research for fatigue of steel bridges is desperately required since not much research work has been done so far. In this study, a guideline on the fatigue design is suggested for the practical purpose in order to establish the long-term safety of steel bridges against fatigue. The continuous steel truss bridge was analyzed for the cumulative reversals of the actual traffic, stress ranges and fatigue strength. From the results, the domestic fatigue design procedure was found to be fairly overestimated in comparison to the design code of other foreign countries. Therefore, it is necessary to review the current fatigue design specifications and have the new and rationalized design criteria in the future domestic fatigue design guidance.

Instructional Design of Self-directed Information Communication Ethics Education based on the UCC Dramatization Learning (UCC 활용 극화학습 기반 자기주도적 정보통신윤리교육 수업 설계)

  • Kim, Hyun-Bae;Mun, Jeong-Hee
    • Journal of The Korean Association of Information Education
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    • v.14 no.4
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    • pp.561-570
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    • 2010
  • In recent years, we can see attempts to take advantage of UCC in a way of the education. But in the precedent studies there are not many guidance plans to help teachers apply UCC in the classroom. The purpose of this paper is to suggest a guidance plan to help teachers apply UCC in the classroom and to analyze the effect of educational using UCC Dramatization learning model on the expanding of students' self-directed learning ability in the information communication ethics education. For this, first, a teacher executes preliminary inspection about self-directed learning ability second, students study about "how to prevent them from cyber crime" using UCC Dramatization learning model. Third a teacher executes post inspection about self-directed learning ability and measures the degree of improvement on self-directed learning ability. The final step is to extract the implications from the analysis of the experiments.

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A Study for the Health Education of Breast Self-Examination (유방자가검진 교육을 위한 조사 연구)

  • Lee, Young Whee
    • Korean Journal of Adult Nursing
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    • v.12 no.4
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    • pp.717-726
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    • 2000
  • This study was undertaken to examine the degree of knowledge and compliance of breast self-examination with women. The subjects for this study were 474 women aged 35-65 receiving health examination from Yonsu-ku Public Health Service Center in Inchon. Data collection was conducted through the use of 2 questionnaires. Analysis of the data was done by used of descriptive statistics, t-test, ANOVA, and Pearson Product Moment Correlation Coefficient. The results of this study were as follows: 1. There were significant differences in the breast self-examination compliance rate according to age(F=5.82, p=.000), marital status(F=2.67, p=.047), educational level (F=5.83, p=.000) and household income (F=3.41, p=.018). 2. The correct answer rate for each items of breast self-examination knowledge scale was between 14.1% of a minimum rate and 65.0% for a maximum rate of 100. The degree of knowledge for relation of breast cancer and menopause, the time of the highest occurance of breast cancer, the best time of breast self-examination and inspection methods of breast self-examination shows relatively low understanding. 3. The average score of breast self-examination was 1.34 from a maximum score of 6. The score of breast self-examination with palpation methods was higher than with inspection methods. 4. A positive correlation was found between breast self-examination knowledge and compliance rate (r=.417, p=.001). According to the results, it is necessary to provide knowledge of the relationship of breast cancer and menopause, the time of the highest occurance of breast cancer, and the best time of breast self-examination and inspection methods of breast self-examination. Also, it is necessary to provide detail guidance for inspection methods and develop a program for promoting the compliance of breast self-examination.

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