1. data analysis: by analyzing the traffic data and truck traffic information in the past period, find out the hot spots and time periods of overloaded trucks. These data can come from traffic monitoring systems, highway toll stations, waybill records of transportation companies, etc.

2. Video monitoring: install video monitoring equipment in hot spots and key road sections to monitor traffic around the clock. The monitoring equipment shall have the functions of high definition, wide-angle vision and night vision to ensure that the license plate and load of the truck can be accurately identified.