With the increasing use of vehicles in cargo transport, the collection, processing and transmission of data flow within and outside these vehicles are increasingly complex and important for drivers and goods owners, particularly for remote monitoring and control. There are various forms of vehicle data and hence various types of networking used in different vehicle applications. Based on vehicle information flow analysis, a networking system for vehicle remote monitoring and management is designed and their implementations are discussed. A simple communication model is designed and use of 2D barcode block as the data unit is suggested.