3.2. Software sub-system for the data processing
Firstly, a full-body biomechanical model (Fig. 2) is built from a
special tool of hardware system to connect the collected motion
data in the virtual environment where the ergonomics evaluations
are performed.
The data regarding joints angles and body segment positions
are processed by specific real-time tools, developed according to
the main ergonomics assessment methodologies, such as RULA,OWAS, OCRA and Lifting Index (LI). Moreover, other motion data
analyses have been introduced in order to analyze more deeply
other ergonomics aspects, such as hands position or travelled
distance during the execution.
The software sub-system is integrated with the hardware one
following the conceptual logic scheme reported in Fig. 3.
Firstly, two based units, called Connection Management Unit
and MoCap Suit Management Unit, guarantee the correct and
accurate operating of the hardware sub-system, alerting if any
problems occur. (See Fig. 4–8).
The main part of the software sub-system concerns the realtime
tools for the ergonomics evaluations. Here the Data Collection