The installed camera system consists of two project-specific industrial cameras and a computer system.
Optionally, the Wahtari nVision software can also be purchased. This offers an easy-to-use user interface for setting threshold values, process monitoring and documentation. Wahtari nVision is available for Linux and Windows operating systems and can be installed on in-house computers (e.g. laptops or tablets).
At Stora Enso, operation via Wahtari nVision was not necessary. Instead, thanks to the numerous standard industrial interfaces (e.g. Profibus, Profinet, OPC/UA, Digital IO, etc.), the camera system could be easily and quickly integrated into Stora Enso’s existing IT system. The system was controlled via the API, which could be made available via the industrial protocols (here: Profibus and OPC/UA).
The integration into the running operation is also simplified by standard cabling and power supply (220 V) of the Wahtari camera system. Due to the few and uncomplicated system components, the installation effort is minimal:
The industrial cameras with integrated mount and lighting are suspended at two different locations above the conveyor belt.
The computer system (embedded in a control cabinet, dimensions 50 cm x 60 cm x 40 cm (HxWxD)) is mounted on a wall during operation.
The system evaluates the images generated by the cameras and controls the return airlock via the industrial interfaces. This also means that neither an internet connection nor a cloud connection is required. This enables the highest data processing speeds and the lowest latencies. Since the customer data completely remains in the company, there is the greatest possible data security.
In the event of subsequent changes in the process (e.g. other tree types), the system can be adapted through quick and easy training.