Occupational safety has a crucial role in every technological process in
industry environments. Recently, smart mobile devices have become standard
hardware that can help inform workers about their duties and procedures
during work. In this paper, we present an augmented reality (AR) system for
mobile devices as a tool for safeguarding health and safety, and the secure
performance of tasks in a technological process by following virtual
instructions in the workplace. In a case study, we explored the task
procedures and defined the risk factors in the electro-energetics industry.
Based on that, we implement a corresponding AR system that should be used to
issue occupational safety and work instructions to workers during task
execution. With that aim in mind, we designed a client-server architecture to
project the related instructions on the screen of the mobile device, to
ensure the confirmation of implementing them, as well as to keep a record of
all the steps the worker performed. As an illustrative example, we present
the application of the designed AR system to particular tasks in
electro-energetics industrial plants.