• Title, Summary, Keyword: Safety Device

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Basic Study on Safety Accident Prevention System Development Using Wearable Device (웨어러블 장치를 이용한 건설사고 예방 시스템 개발 기초 연구)

  • Ryu, Han-Guk;Kang, Jin-Woo
    • Proceedings of the Korean Institute of Building Construction Conference
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    • pp.55-56
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    • 2018
  • In order to reduce the risk of accidents, we proposed a construction safety management system combined with wearable device and LoRa (Low-Range Wireless Network) communication method to apply the usefulness of Internet (IoT) technology which means "everything connected". to construction safety management Management system. The proposed wearable safety device is a device that relays information exchange between wearable safety device and safety management server by LoRa wireless communication method. The safety management server can store workers bio-data and perform big data analysis. If a risk factor is determined from the analysis result, a warning is sent to the wearable safety device and the manager's application. The goal of this system is to prevent construction workers from entering the dangerous area that is not suitable for work, and to prevent safety accidents caused by human cause by detecting abnormal condition during work.

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The Development for guideline of raw matrials on technical document of Medical Device (의료기기 허가.기술문서 원자재 작성 가이드라인 개발)

  • Park, Ki-Jung;Ryu, Gyu-Ha;Lee, Sung-Hee;Lee, Chang-Hyung;Jung, Jin-Baek;Lee, Jae-Keun;Hur, Chan-Hoi;Kim, Hyung-Bum;Choi, Min-Yong;Kim, Yong-Woo;Hwang, Sang-Yeon;Jung, Jae-Hoon;Koo, Ja-Jung;Hong, Hye-Kyung;Lim, Kyung-Taek;Kang, Se-Ku;Kwak, Young-Ji
    • Journal of Biomedical Engineering Research
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    • v.31 no.6
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    • pp.434-437
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    • 2010
  • For approval of medical devices manufactured or imported, submission of technical documents as well as the application form is required. The manufacturer (or importer) should properly identify the raw materials the applied product is made of and the manufacturing processes the product undergoes before it is shipped in the application form. In the technical documents, scientific data to evaluate the efficacy, safety, and quality of the applied product that has been described in the application form should be provided. Therefore, identifying the raw materials that were used for the parts of the applied product and describing the physical and chemical characteristics of the raw materials are quite important and essential in ensuring the efficacy, safety, and quality of the applied product. To describe the physical and chemical characteristics of the raw materials correctively, the applicant is required to have broad knowledge in the scientific fields such as chemical, polymer, metal, and ceramic science and engineering. But most of the applicant are not experts in these fields, so that the description in the application form often includes wrong and improper descriptions. Thus, we developed a guideline which explains the raw materials for medical devices, show the their examples. The purpose of this description guideline is to help the applicant properly completing the "Raw materials or constituents and their volumes" part in the application form.

A Study on Improvement of Submarine Torpedo Acoustic Counter Measure Launcher System Safety Device Performance (잠수함용 어뢰기만기 발사체계 안전장치 작동성능 향상에 관한 연구)

  • Chang, Ho-Seong;Seo, Dae-Su;Lee, Gyeong-Chan;Lee, Jong-Gwan;Jo, Byeong-Gi;Kim, Joong-Bae
    • Journal of the Korean Society for Quality Management
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    • v.46 no.3
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    • pp.411-424
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    • 2018
  • Purpose: The purpose of this study is to improve submarine TACM launcher system safety device performance. Methods: In this study, EPLD(Electrically Programmable Logic Device) control and time sharing method to the safety device actuator motor and discrete signal processor in launch control panel were used to resolve unusual performance of safety system. Results: The result of this study are as follows; First, sporadic stopping of safety device actuator motor due to insufficient In-Rush current was resolved. Second, repeat of safety device condition as lock & release due to chattering for motor activating was resolved. Third, simultaneous release function for safety device actuator was available. Conclusion: The unusual performance of function for submarine TACM launcher system was overcame by applying EPLD control and time sharing method. The suggestions were proved by performance test in the pressure chamber. The results of this study enhanced survivability of ${\bigcirc}{\bigcirc}{\bigcirc}$ class submarine from enemy torpedo.

Safety Policies on Prevention of Industrial Accidents Associated with Industrial Machines and Devices (산업용 위험기계 및 기구관련 산재예방 정책 연구)

  • Choi, Gi Heung
    • Journal of the Korean Society of Safety
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    • v.30 no.6
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    • pp.26-33
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    • 2015
  • This study suggests systematic procedures to improve safety policies on prevention of industrial accidents associated with industrial machines and devices. Specifically, new method of cause analysis of industrial accidents associated with industrial machines and devices is suggested and the related accident data are re-analyzed. Effectiveness of direct safety regulations such as safety certification, self-declaration of conformity, safety device regulation and safety inspection of industrial machines and devices are also analyzed. Based on those analysis results, transition from the current user-oriented safety device regulation to more balanced direct regulations on both manufacturer and user is suggested. Together with severity and frequency of industrial accidents, unit severity and unit frequency need to be taken into account to further assess the risk associated with a particular industrial machine or device. Balance between safety regulations will be realized by proper adjustment of lists of safety certification and inspection, and certification and inspection standards. This will also guarantee the maximum benefit over cost in such safety regulations.

Structural Analysis of Door Safety Device (도어 안전장치의 구조해석)

  • Lee, Jong-sun
    • Journal of the Korea Convergence Society
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    • v.10 no.9
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    • pp.173-177
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    • 2019
  • This study is door safety device for the structural analysis are described. Recently emerged as a key point of the door safety and increase the need of a door safety device. In order to improvement this inconvenience, the door safety device was design and structural analysis by using CATIA. CATIA utilizes door safety device element model for displacement, stress and strain energy were obtained. Consideration of door open angles were $95^{\circ}$, $100^{\circ}$, $105^{\circ}$, $110^{\circ}$, $115^{\circ}$, $120^{\circ}$. These results will be provided to develop new concepts of door safety device as initial data.

Effects and Satisfaction of Medical Device Safety Information Reporting System Using Electronic Medical Record

  • Jang, Hye Jung;Choi, Young Deuk;Kim, Nam Hyun
    • Healthcare Informatics Research
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    • v.23 no.2
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    • pp.94-100
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    • 2017
  • Objectives: This paper describes an evaluation study on the effectiveness of developing an in-hospital medical device safety information reporting system for managing safety information, including adverse incident data related to medical devices, following the enactment of the Medical Device Act in Korea. Methods: Medical device safety information reports were analyzed for 190 cases that took place prior to the application of a medical device safety information reporting system and during a period when the reporting system was used. Also, questionnaires were used to measure the effectiveness of the medical device safety information reporting system. The analysis was based on the questionnaire responses of 15 reporters who submitted reports in both the pre- and post-reporting system periods. Results: Sixty-two reports were submitted in paper form, but after the system was set up, this number more than doubled to 128 reports in electronic form. In terms of itemized reporting, a total of 45 items were reported. Before the system was used, 23 items had been reported, but this increased to 32 items after the system was put to use. All survey variables of satisfaction received a mean of over 3 points, while positive attitude, potential benefits, and positive benefits all exceeded 4 points, each receiving 4.20, 4.20, and 4.13, respectively. Among the variables, time-consuming and decision-making had the lowest mean values, each receiving 3.53. Satisfaction was found to be high for system quality and user satisfaction, but relatively low for time-consuming and decision-making. Conclusions: We were able to verify that effective reporting and monitoring of adverse incidents and the safety of medical devices can be implemented through the establishment of an in-hospital medical device safety information reporting system that can enhance patient safety and medical device risk management.

Realization of Logistics Safety Management System By Operating Advanced Vehicle Safety Management Device (첨단 차량 안전관리장치 운영을 통한 물류 안전관리시스템 구현)

  • Moon, Hoi-Kwon;Kang, Kyung-Sik
    • Journal of the Korea Safety Management and Science
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    • v.20 no.2
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    • pp.1-8
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    • 2018
  • This study aims to provide a real-time information to the driver by effectively operating the advanced safety device attached to the freight vehicle, thereby minimizing insecure behavior of the driver such as speeding, rapid acceleration, sudden braking, And improve driving habits to prevent accidents and save energy. Advanced safety equipment is a device that warns the driver that the vehicle leaves the driving lane regardless of the intention of the driver and reduces the risk of traffic accidents by mitigating or avoiding collision by detecting a frontal collision during driving.The main contents of this report are as follows: In case of installing a warning device on a lane departing vehicle (excluding a light vehicle) and a lorry or special vehicle with a total weight exceeding 3.5 tonnes, the driver must continue to operate unless the driver releases the function.In addition, when the automatic emergency braking system is installed, the structure should be such that the braking device is operated automatically after warning the driver when the risk of collision with the running or stopped vehicle in the same direction is detected in front of the driving lane.

A Development and Characteristics of Remote Emergency Stop Device for Conveyors (컨베이어용 리모트 비상정지장치 개발 및 특성)

  • Lee, Jun-Suk
    • Journal of the Korean Society of Safety
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    • v.26 no.4
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    • pp.14-19
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    • 2011
  • Conveyors cause a high serious and fatal injuries in the industry. Every year people are hurt or killed as a result of accidents on conveyors. Most accidents occur during operation and maintenance when employees are working on moving, unguarded conveyors or when the conveyors starts unexpectedly. In 2008 there were 486 reported injures ranging from fatalities to injures. Of these 486 reported accidents, 8 were fatalities, 66.9%(325) of reported accidents occurred in manufacturing company and 43.8%(213) occurred at the belt conveyors. The objective of this study was to invent the remote emergency stop device because industrial accidents mainly occur at blind spots where usually do not have any safety guard or device rather than the normal working places. In principle, this new device will use with the existing safety system. Then, it will be powerful safety system for preventing injuries related with conveyors.

The Development of Assistant Device for the Standing X-ray Views and Its Usability for the Patient Safety (환자의 안전을 위한 입식 X선 촬영 보조기구 개발 및 유용성 평가)

  • Gil, Jong Won;Kim, Yong Gwon
    • Journal of the Korea Safety Management and Science
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    • v.17 no.4
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    • pp.223-229
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    • 2015
  • In this study, We designed and implemented a assistant device for the standing X-ray views which is the one of the clinical X-ray imaging position. To evaluate the usability of the proposed assistant device, We choose 11 clinical patient postures that are used frequently and applied the postures to 5 volunteers. 11 images was taken from a volunteer for the patient postures. And we conducted a survey on safety and clinical usefulness, the 5 volunteers responded to the safety and 5 experts responded to the clinical usefulness. The survey results show that the volunteers feel more safe and the obtained images are very clear and clinically useful. The result for the image quality is 4.69 of 5(best) and safety is 2.84 of 3(best). It will be very profitable to both patients and hospitals by using the proposed assistant device.

The Study on the Laser in the Safety Device for Dangerous Machine (위험기계 방초장치에 적용되는 레이저에 관한 연구)

  • 이충렬;김창봉
    • Journal of the Korean Society of Safety
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    • v.17 no.3
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    • pp.22-29
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    • 2002
  • The safety device of infrared type for dangerous machine being used currently has a harmful effect on human's eye and skin. In this paper we explain about the characteristics of lasr source and analyze the amount of harmfulness on human's eye by simulation method. We used the datas given by ANSI in this simulation.