when were document camera invented. (3) Build a professional team of collaborative training At present, there are various collaborative groups on the regional teacher network training platform, including 95 subject backbone groups, 220 excellent teaching and research groups, 53 base working groups, 47 scientific science groups, and school-based training schools. Every time network. Interactive Document Camera is a completely new concept design and mobile visualizer. The touch capability on IQTouch and IQBoard, IQView E3511 Document Camera can be freely used for presentations anywhere in or out of the classroom or office.