A wavelength-division multiplexed self-healing passive optical network is capable of detecting cut-off and deterioration of feeder fiber and distribution fiber and restoring a network with a star structure. First, a metal layer, a dielectric layer and a patterned hard mask layer are sequentially formed on a substrate. A corrective coefficient multiplier multiplies the fuel corrective coefficient KVPLS and the corrective coefficient KVTH, thus calculating a vehicle speed fuel adjustment corrective coefficient KVAF. The drum roller is disposed on the frame so as to roll over and thereby compress the windrow of particulate material as the trailer and the roller translate relative to one another along the longitudinal axis. The device and method employ a change in the optical reflectivity of a transparent, plastic membrane due to pulling a vacuum on the seal to make the above mentioned determination. After that, the OFDM demodulator circuit performs the waveform equivalence processing with a transmission path equivalent circuit.