초록 ▼

An object is to realize a server/client-type map information providing system capable of providing detailed, wide-ranging map related information through telecommunications at low costs, and a server side is provided with databases (9 to 12) storing the map related information. When notified of posi

An object is to realize a server/client-type map information providing system capable of providing detailed, wide-ranging map related information through telecommunications at low costs, and a server side is provided with databases (9 to 12) storing the map related information. When notified of position information from a mobile terminal side, a processing portion 15 performs a route search referring to map data in the map database 9 based on the position information. The processing portion 15 then extracts Information related to the obtained route (route related information) from the databases (9 to 12) to transmit the information with the route to the mobile terminal side. In this way, since the mobile terminal side needs only the information that is closely related to the route in the map related information, only the route related information is transmitted, thereby reducing the amount of information to be transmitted compared to that when the map related information is downloaded as it is, and as a result it is possible to provide detailed, wide-ranging map related information through telecommunications at low costs.

대표청구항 ▼

[ What is claimed is:] [1.]1. A map information providing system for providing map information, said system comprising:a server and one or more movable terminals, wherein the map information is provided from said server to said one or more movable terminals;said server comprising:an information stor

[ What is claimed is:] [1.]1. A map information providing system for providing map information, said system comprising:a server and one or more movable terminals, wherein the map information is provided from said server to said one or more movable terminals;said server comprising:an information storage portion operable to store map related information including the map information;a route searching portion operable to perform a route search by referring to the map information based on a position information of which said server is notified by said one or more movable terminals;a route related information extracting portion operable to extract only information about areas surrounding a route obtained by a search performed by said route searching portion from the map related information stored in said information storage portion; anda communication portion operable to notify said one or more movable terminals of the route related information obtained by an extraction performed by said route related information extracting portion through telecommunications;wherein the map related information has latitude and longitude coordinates to point a location on the map, and wherein said route related information extracting portion is operable to calculate a linear distance between the latitude and longitude coordinates of each information item and a node constructing the route and extract an information item if the calculated distance is not more than a threshold.