| 摘要 |
A position information transmitting method capable of transmitting a positio n on a digital map and a configuration accurately with a small amount of data despite a complicated road configuration, which allows a transmitter to send road configuration information for specifying a target road segment on a digital map and event information for specifying an event occurring position by a relative position in a target road segment, and allows a receiver to identify a target road segment on a digital map by map matching based on roa d configuration information and to specify an event occurring position in a target road segment based on event information, wherein the transmitter intermittently selects (2) nodes included in a target road segment to send t he coordinates data of the nodes along with road configuration information, and the receiver determines (4) node positions included in road configuration information by map matching to obtain (5) a road portion between the nodes b y route searching and identify a target road segment, thereby enabling us to send event positions on a digital map efficiently and accurately with a smal l amount of data.
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