Methodology of safety for a human robot interaction designing stage

Abstract

Over the years, in general safety and reliability areas various risk assessment methods and safety standards have been developed and only few of them defined appropriate to human robot interaction field. In this paper we integrating several approaches related to risk estimation and safe design of human centered robotic workcell. Analyzing various concepts and results in areas: Human factor, hazard analysis, risk assessment, safety technology, we conclude with several ideas about how aspect of safety in the field human robot interaction could me provided and enhanced.

Risk Assessment and Functional Safety Analysis to Design Safety Function of a Human-Cooperative Robot

“…A noise filter circuit is incorporated into the input terminal of the FSFDD to smoothen the high-frequency noise in the command signals. More details on the FSFDD have been completely documented in studies (Lee & Yamada, 2007;2009;Kato, 1993;Sakai et al, 2000). In this book, the reader will find a set of papers divided into two sections.…”

“…The analog voting scheme is also beneficial in simplifying the safety-related signal process once adequate measures are taken against noise. A fail-safe fault detection device (FSFDD) that we have developed can detect a fault by comparing the analog command signals generated by the dual-channel control computer, and it reflects the result of the fault detection in the output signal (Lee & Yamada, 2007;2009). By monitoring the command signals, the FSFDD is able to indirectly detect not only computer hardware/software failures, but also sensor failures that can cause hazardous movement of Skill-Assist.…”

Safety issues in human-robot interactions

“…According to [1], the causes of accidents caused by robots can be grouped into three main categories: engineering errors, human mistakes and poor environmental conditions. Engineering errors include errors in the robot's mechanics (loose connections across parts, faulty electronics), errors made by the controller (programming bugs, faulty algorithm), etc.…”

An application of E-field sensors in industrial robotics

“…An attempt to to create a methodology based on the analysis of risks and dangers for designing a safe, man centered robotic work-cell has been made in [1]. In [2], the problem of safe contact between human and robot has been dealt with by proposing a notion of Safe Space, based on the pain's human tolerance.…”