The Mechanism Of Map Printing On Demand And The Key Technology Research

Currently,since the limitation of p rinting conditions,traditional map printing has to apply the guarantee mode of “printing in advance,storing after”,whose basic principle is to enrich map types and amount in storage so as to meet the needs of users various requirements.This mode has some apparent problems: 1.Fitful map using amount,which leads to map printing supplement or excessive printing.2.Amount of map storage is huge,which results in severe pressure on map management and maintenance.3.Lowefficiency of user's access to maps.Map information has low present situation.4.Map management condition is unsteady,which has hidden danger on safety.Aiming at the current flaws and disadvantages on traditional map printing,combining with relative theory and technology tendency,this paper brings forward and sets up the mechanism of map printing on demand,while studies and designs the whole model for the new mode as well as the operation project for each flow in detail.It specially researches on the key techniques of map invariable information printing and map data safety,and designs and develops “Map printing on demand system”.It uses the system to testify the feasibility and high-efficiency of map printing according demand mode.This paper provides theory and experiment validation for map printing mode transformation and enhancing of map printing efficiency as well as map guarantee ability.The main work in the paper is as follows:1.It analyzes the basic flow of traditional map printing and the flaws of current map guarantee.Combining with the tendency of map printing according to demand inland and abroad,it indicates the inevitability and feasibility.2.It studies and analyzes the whole model and basic operation flow for map printing according to demand as well as the operatio n project in detail on map application and examination mode,map producing task arrangement mode,map data application and granting mode,map printing mode and map handing over and circulation mode,etc.3.It analyzes the two characteristics of one-time printing and segmented printing.It also studies and designs the map invariable information printing data model under the condition of printing according to demand,and uses the model to realize the bar code and other information printing on map,which provides basic support for map exact managnent.4.According to the map data safety,map data hybrid encryption model based on hardware fingerprint information.The model users appointed hardware information to generate secrt key,which makes that the map data can only be released on appointed facility.It avoids the probability of map data interception and ensure the map data's safety.5.It designs and develops “Map printing on demand system”.By testifying each module's function,it testifies the feasibility,high-efficiency and superiority of map printing mode according to demand.