Tracking sensor for detecting optical marks on path to guide vehicle, has color filter and comparator that examines scenes using sensor with and without filters and compares scenes with one another

摘要

The sensor (6) has a color filter (7) that is selected for color spectrum of marks (2) or path, where the marks have color spectrum like the path and physical filter is utilized as filter. A comparator (9) i.e. microcontroller, examines scenes using the sensor with and without filters and compares the scenes with one another, where the marks on the path are differentiated by the filter effect and are fixed in a position. Sensor elements with different spectral sensitivity are utilized for filter. A camera (8) is connected to the color filter.