Vehicle networking-based navigation method, system, dynamic monitoring method and system

The invention provides a vehicle networking-based navigation method, a system, a dynamic monitoring method and a system. The vehicle networking-based dynamic monitoring system comprises a monitoring device, a monitoring center, a vehicle-mounted wireless communication device, and a vehicle-mounted multimedia terminal, wherein the monitoring device is fixed on a driving road of the vehicle; the monitoring center is in communication connection with the monitoring device; the vehicle-mounted wireless communication device builds communication connection with vehicle-mounted wireless communication devices of other vehicles and the monitoring device and communicates; and the vehicle-mounted multimedia terminal is used for displaying peripheral geographic information and a navigation route. Through information interaction between the monitoring device and the vehicle-mounted wireless communication device, the monitoring center can realize dynamic monitoring on vehicles driving on the road. When the vehicle is lost and needs to be navigated, in the conditions in which the vehicle has no navigation or navigation fails, the vehicle can seek for help from the monitoring device at the road side or vehicles around the vehicle so as to acquire the geographic information of the position where the vehicle is located and the navigation router needed by the vehicle.