Not exactly what kind of express orders, the goods is how to achieve GPS positioning. Or the cargo is equipped with satellite locator, or what kind of.
Regular express have GPS positioning, and the road car handle is a one-time thing to seal up
General large courier companies will be equipped with GPS vehicle positioning system for vehicle positioning and tracking all the time, you can know more about the advantages of Tmall ---utraveller locator, drive, vehicle positioning is carried out by the GPS locator on the road, this is the courier company's internal management, to know the vehicle and goods; and every a transit station will scan again, this time will be posted to the web, what we see on the web can be found, which is the arrival of the goods at the transfer station, who send a single scan, etc.!
Logistics to the transit station after scanning the logistics information, understand?