MOBILE DATA COMMUNICATION SYSTEM

PROBLEM TO BE SOLVED: To quickly and inexpensively obtain required map data and to utilize the data for guiding the drive of a vehicle by providing a plurality of communication means for obtaining the map data from the outside and a means for storing the map data and a means for synthesizing the map...

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Bibliographic Details
Main Author SATO KENYA
Format Patent
LanguageEnglish
Published 20.10.2000
Edition7
Subjects
ADVERTISING
APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND,DEAF OR MUTE
CRYPTOGRAPHY
DIAGRAMS
DISPLAY
EDUCATION
EDUCATIONAL OR DEMONSTRATION APPLIANCES
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
GLOBES
GYROSCOPIC INSTRUMENTS
MEASURING
MEASURING DISTANCES, LEVELS OR BEARINGS
NAVIGATION
PHOTOGRAMMETRY OR VIDEOGRAMMETRY
PHYSICS
PLANETARIA
SEALS
SIGNALLING
SURVEYING
TESTING
TRAFFIC CONTROL SYSTEMS
WIRELESS COMMUNICATIONS NETWORKS
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Summary:PROBLEM TO BE SOLVED: To quickly and inexpensively obtain required map data and to utilize the data for guiding the drive of a vehicle by providing a plurality of communication means for obtaining the map data from the outside and a means for storing the map data and a means for synthesizing the map data. SOLUTION: A navigation system body 1 is provided with a memory 13 and a CPU 11 for storing map data or the like that has been received through a GPS receiver 14, a satellite data broadcasting receiver 2, a beacon receiver 3, and a cellular telephone 4. The CPU 11 detects the position of a vehicle by comparing a vehicle position data from the GPS receiver 14 with a map data being stored in the memory 13. The satellite data broadcasting receiver 2 receives a data that is transmitted from a communication satellite, a broadcasting satellite, and the like. The beacon receiver 3 receives a broadcasting data from a light beacon, an electronic wave beacon, or the like being available everywhere on a road. The cellular telephone 4 receives a data from a vehicle that provides a map data through a base station. Even if a plurality of communication means with different communication speeds are utilized, a hierarchy data can be obtained.
Bibliography:Application Number: JP19990096681