This function is to periodically modify the unit price of each Station.
First, set the unit price of oil products, the Stations that need to be adjusted, and the time of price adjustment.
After setting the price adjustment, the relevant person in charge reviews the price adjustment .
Only after the review, the corresponding station will download the price adjustment, and then the system will automatically modify the unit price of this site at the specified time to achieve the purpose of unified price adjustment.