DATA COMMUNICATION DEVICE, DATA COMMUNICATION SYSTEM, AND COMPUTER PROGRAM FOR DATA COMMUNICATION DEVICE

PROBLEM TO BE SOLVED: To provide a data communication device capable of transmitting a travel period by utilizing efficient use of a memory. SOLUTION: The data communication device, usable on a vehicle, periodically acquires a current vehicle position; determines whether the vehicle has passed throu...

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Bibliographische Detailangaben
1. Verfasser:	OKUYAMA KYOKO
Format:	Patent
Sprache:	eng
Schlagworte:	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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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a data communication device capable of transmitting a travel period by utilizing efficient use of a memory. SOLUTION: The data communication device, usable on a vehicle, periodically acquires a current vehicle position; determines whether the vehicle has passed through a node; updates a stored current position, if the vehicle has not passed through a node; if the vehicle has passed through a node, then a travel period assumed is taken as being the time period it took for the vehicle to pass through a link which is last exited by the vehicle; updates a stored entry time and link, after completing calculation of the travel period; and transmits the calculated travel period and corresponding link's identification data to a predetermined communication destination. COPYRIGHT: (C)2010,JPO&INPIT