A system for controlling photovoltaic electricity production equipment having photovoltaic modules each equipped with a DCDC microconverter connected to a DC bus, a DC bus manager, and an inverter for converting the direct current from the photovoltaic panels into alternative current intended for an electrical distribution network. The chirp indicator identifies the chirp quantity of the ultrashort optical pulse by detecting an optical correlation between the target ultrashort optical pulse and the ultrashort optical pulse used as a reference. The selected data is integrated into a pre-created template to generate the composite media, such as an advertisement, special offers, or weather and stock information. A sheet leading end regulating device is provided for regulating a position of leading ends of the sheets collected on the collecting guide device. The example method may also include periodically merging the staging index into the mature index based on query feedback.