A position measuring unit measures measurement data including at least a movement velocity, an accuracy reduction index, and an azimuth on the basis of a signal received from a satellite. The system also includes at least one supervisor terminal for monitoring purchasing activities of at least some of the plurality of self-checkout stations. A process for producing granular polycrystalline silicon includes producing granular silicon in a fluidized bed reactor from a gas mixture containing TCS and hydrogen at a fluidized bed temperature of 900-970\xb0 C. The microstructured region is formed from multiple windowed layers formed from heat conductive layers through which a plurality of microscaled apertures have been formed by a wet etching process. The outputs include sensory outputs such as visual, audio, scent emission and heat. This can reduce the multilayer area of the coil substrates 110, 120 in the transmission direction A.