• Title/Summary/Keyword: reporting error

Search Result 95, Processing Time 0.035 seconds

A Study on Fault Detection Scheme on TMRed Circuits (삼중화된 회로에서의 결함 감지를 위한 방법에 관한 연구)

  • Kang, Dong-Soo;Lee, Jong-Kil;Jhang, Kyoung-Son
    • Proceedings of the Korean Information Science Society Conference
    • /
    • 2011.06b
    • /
    • pp.313-316
    • /
    • 2011
  • SRAM-based FPGAs are very sensitive to single event upset(SEU) induced by space irradiation. To mitigate SEU effects, space applications employ some mitigation schemes. The triple modular redundancy(TMR) is a well-known mitigation scheme. It uses one or three voters as well as three identical blocks performing the same work. The voters can mask out one error in the outputs from the three replicated blocks. One SEU error in TMRed circuits can be masked but it needs to be detected for some reasons such as to analyze the SEU effects in the satellite or to recover the circuits from the error before additional error occur. In this paper, we developed a fault detection circuit and reporting system to detect a fault on the TMRed circuits. To verify our error detection circuit and reporting circuit, we performed an irradiation test at MC-50 Cyclotron. Experimental results showed that error detection circuit can detect a fault on the TMRed test circuit in radiation environment.

Critical Considerations on Autonomous Reporting System of Current and Revised Patient Safety Law (현행 및 개정안 환자안전법의 자율보고시스템에 대한 비판적 고찰)

  • SHIN, JAEMYUNG;Cho, Giyeo
    • The Journal of the Convergence on Culture Technology
    • /
    • v.4 no.2
    • /
    • pp.33-42
    • /
    • 2018
  • The Patient Safety Act was enacted on July 26, 2016. Patient safety law is a method to prevent harm by collecting and accumulating various errors through the reporting system. Therefore, in order for this law to be successfully implemented, it is necessary to vitalize 'the autonomous reporting and reporting learning system of patient safety accidents'. And In order for this system to be activated, a large amount of reporting data accumulation is a prerequisite. Nevertheless, there were only two reports in about 17 months. In this paper, I will criticize the validity of the current autonomous reporting system and the two proposed amendments, I would like to propose the introduction of a partial obligation reporting system.

A Study on the Construction of Status Display Equipment for Soft-RAID System of Linux Server using Hardware (하드웨어에 의한 리눅스 서버 소프트-RAID 시스템의 상태표시 장치 구성에 관한 연구)

  • Na, Won-Shik;Lee, Hyun-Chang
    • Journal of Software Assessment and Valuation
    • /
    • v.15 no.2
    • /
    • pp.95-100
    • /
    • 2019
  • In this paper, we propose a simple hardware reporting method for errors in soft-RAID systems of Linux OS. Compared with other reporting methods, the proposed method displays error status intuitively without any additional access process such as log-in process or home-page access. In particular, the server actively displays the error status, so the administrator can take immediate action. In order to confirm the effectiveness of the proposed method, the experimental circuit was constructed and the experimental results showed that the error was actively displayed when an error occurred in the storage device. As such, a soft-RAID system can perform almost the same function as a hardware RAID system, thereby ensuring server data reliability at low cost.

A Study on the Improvement of Air Traffic Safety Information Management (관제 안전정보 관리체계 개선을 위한 연구)

  • Shin, Oksig;Kim, Ilyoung
    • Journal of Aerospace System Engineering
    • /
    • v.2 no.3
    • /
    • pp.7-11
    • /
    • 2008
  • This is a study to research the effective way to enhance the performance of safety management by gathering and analyzing the information of undesirable occurrences that may result in accident or serious incident. This includes the way to identify the potential hazards related with the proactive activities. As detailed improvements, this paper introduces the mandatory and voluntary reporting system, normal operation safety survey, ATC quality assurance and the encouragement of just culture.

  • PDF

The Effect of Multiple Energy Detector on Evidence Theory Based Cooperative Spectrum Sensing Scheme for Cognitive Radio Networks

  • Khan, Muhammad Sajjad;Koo, Insoo
    • Journal of Information Processing Systems
    • /
    • v.12 no.2
    • /
    • pp.295-309
    • /
    • 2016
  • Spectrum sensing is an essential function that enables cognitive radio technology to explore spectral holes and resourcefully access them without any harmful interference to the licenses user. Spectrum sensing done by a single node is highly affected by fading and shadowing. Thus, to overcome this, cooperative spectrum sensing was introduced. Currently, the advancements in multiple antennas have given a new dimension to cognitive radio research. In this paper, we propose a multiple energy detector for cooperative spectrum sensing schemes based on the evidence theory. Also, we propose a reporting mechanism for multiple energy detectors. With our proposed system, we show that a multiple energy detector using a cooperative spectrum sensing scheme based on evidence theory increases the reliability of the system, which ultimately increases the spectrum sensing and reduces the reporting time. Also in simulation results, we show the probability of error for the proposed system. Our simulation results show that our proposed system outperforms the conventional energy detector system.

A Study on the Detailed Classification and Empirical Analysis of Human Error (인적오류의 세부적 분류와 실증분석에 관한 연구)

  • Kim, Y.K.;Kim, C.Y.;Choi, Y.C.
    • Journal of the Korean Society for Aviation and Aeronautics
    • /
    • v.10 no.1
    • /
    • pp.9-20
    • /
    • 2002
  • In aviation, it is important to analyse and classify human error in detail. Because human error has been implicated in 70 or 80% of aviation accidents in literature review. But, there is little detailed classification and research of human error. In this study, Objectives are to establish human error model by classifying types of human error in detail and also to analyse human factors by using the established model. Analysis of the data uses Korea Aviation Incidents Reporting System(GYRO). The resulting from actual analysis, there is a some difference between flight steps for human error occurrence and types of human error are different according to the aviation personnel(pilot, ATC controller).

  • PDF

A study on the efficient sample design and the error in the statistical survey (統計調査에 있어서 效率的標本設計와 誤差에 관한 硏究)

  • 김종호;남궁평;박홍래;이계오;이상우;함종욱
    • The Korean Journal of Applied Statistics
    • /
    • v.3 no.1
    • /
    • pp.27-46
    • /
    • 1990
  • In this paper, wer propose many problems by analyzing the various currently statistics, propose the basic principal for the more precise performance of sample survey, and at the same time propose the method(principal) for detecting and manipulationg the source of error. Finally, we are to improving the statistical reliability and increasing the user's convenience by standardizing the statistical reporting form.

  • PDF

Development of an Error-Type Analysis Frame and Analysis of High School Students' Error-Types in Observation Behavior Using Microscopes (고등학생의 현미경 관찰 활동에 대한 결과 보고 오류 유형 분석틀의 고안 및 오류 유형 분석)

  • Jin, Hyun-Jung;Lee, Il-Sun;Kwon, Yong-Ju
    • Journal of Science Education
    • /
    • v.35 no.2
    • /
    • pp.127-137
    • /
    • 2011
  • The purpose of this study is to develop the analysis frame of reporting observation results by high school students in biology experiments using microscopes and analyze their error types. For this study, five experiments were carried out by 12 high school students in B metropolitan city. Before these experiments, developed the analysis frame of reporting observation results. Tests for checking prior knowledge of students were done and results of each experiment were taken picture of. Using the developed framework, the real results and reported results submitted by students were analyzed. The result of this study shows how students report their observation results and they tend to have difficulty in doing observation activity itself. The ratio of factual reports is low because observation ways and recording ways have not been taught properly. Observation training is needed for observing real results objectively. The improvement in experiment environment is necessary for right observation, not observation for checking based on only results. In addition, the education of ethics in science research focusing on the integrity should be performed. The analysis data of reporting observation result by students can be used as basic data for teachers to plan observation strategies and to have right observation views and ways.

  • PDF

A Study on the Analysis and Prevention of the Human-related Marine Accidents (인적 요인을 중심으로 한 해양사고 분석 및 예방 연구 (예부선 사고사례를 중심으로))

  • Kim, Hong-Tae;Na, Sung
    • Journal of Korea Ship Safrty Technology Authority
    • /
    • s.27
    • /
    • pp.25-36
    • /
    • 2009
  • Despite the development of the various navigational equipment, such as GPS, ARPA, ECDIS, AIS, VDR, and hull monitoring system, marine accidents are still a leading concern in shipping industry. For all accidents over the reporting period, approximately 60 to 80% of the accidents was involved in human error. It means that in each case, some events which were associated with human error initiated an accident, and those failures of human performance led to the failure to avoid an accident or mitigate it's consequences. However, the improvement and the effort on the maritime human error are still limited in an elementary step. The objective of this paper is to propose a modified Human Factors Analysis and Classification System (HFACS) model in order to analyse the collision accidents of tug-barge ship.

  • PDF