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산업용 로봇 안전검사 항목을 통한 안전성 향상 방안 연구
윤여송 ( Yeo-song Yoon ),신운철 ( Shin-woon Chul ),송기석 ( Song-gi Suk ) 대한설비관리학회 2020 대한설비관리학회지 Vol.25 No.4
In view of the continuous trend of automation in the future, there is a possibility that the accidents caused by robots may increase, so prevention of accidents caused by robots may become very important. The safety inspection of robots is a matter conducted in Korea to prevent industrial accidents. For items with a higher risk of test items, safety tests should be carried out with the importance of safety tests in order to secure more safety. If we improve the detailed test plan in preparation for the importance of future items by improving safety according to important items, it is expected that more safety for disaster prevention will be secured. As a research method, the risk of robot safety inspection test items was evaluated through domestic experts. As related experts, two experts each, including an inspection expert at an inspection institution, an expert at a manufacturing manufacturer, and a user using a robot, were selected and evaluated by a face-to-face questionnaire. The risk assessment estimate was composed of a functional 5-point scale and a materiality 5-point scale, and the risk was expressed by multiplying probability and materiality. The measures to improve safety revealed through the risk assessment results and considerations are as follows. First, as an additional requirement of safety inspection items related to maintenance work, it is necessary to add durable performance requirements related to the service life within the performance requirements of the safety-related control system. Second, as a result of evaluating the risk of the safety inspection test items, the safety-related control system performance requirements and the risk of cooperative operation are 25, the cooperative operation requirements are 23.7, the protection areas and measures are 22.3, and the emergency stop device in order of priority risk. was 21.6 and the robot system stop function was 20.2. Third, in the single defect of the safety-related control system performance requirement, the specific detailed type of the single defect must be presented. Fourth, in cooperative operation, it is desirable that the safety inspection organization set specific detailed items for actual inspection to ensure compliance with domestic and international standards.
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