Road dotted line and solid line alignment construction control method and system

The invention discloses a road dotted and solid line alignment construction control method and system. The method comprises the steps that GPS sampling time data, meter counter sampling time data and a nozzle operation state in the process of drawing a first dotted and solid line are obtained; fitting the GPS sampling moment data to obtain a fitting equation; obtaining normal equations of all boundary points according to the fitting equation, the operation state of the nozzle, the sampling time data of the meter counter and the sampling time data of the GPS; when other virtual and solid lines are drawn, GPS sampling time data and meter counter sampling time data are obtained; performing interpolation on each piece of GPS sampling moment data through the meter counter sampling moment data to obtain a plurality of position coordinates; and calculating a boundary point normal equation value when the obtained GPS sampling time data and each position coordinate are substituted into one of the boundary point normal