Exposure frequency eva-uation method of physical contact risk for the risk assessment of human-coexistence robot

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In recent years, human-coexistence robot to do housework and services, i.e., the realization of human-coexistence robot has been desired. Human-coexistence robot, in order to work around the human, to be in frequent contact with humans is to be expected. Therefore, it is necessary to perform risk assessment in advance. However, since human-coexistence robot is new device, the statistical data of the past accident does not exist. In addition, the contents of work and working environment are not stable. Therefore, the conventional risk assessment technique can not be used. In this research, a quantitative evaluation method for exposure frequency of the collision risk of the human-coexistence robot that works in human's living environment is proposed.