An optoelectronic device includes a packaged part and a core component. The observer may be implemented using an equivalent EMF model of a synchronous machine or, alternately, using a sliding mode controller based on the equivalent EMF model of the synchronous machine. Further, during compilation, the system converts the second code blocks to kernel program modules, in a form recognizable by the system kernel. Moreover, an image processor to process the image of the measured welding state is provided. The EMD registration server receivers the user’s profile inputted based on the data from the personal computer and records the user’s profile in correspondence to the MGID.