| 摘要 |
The present invention relates to a positional information service. A service center comprises a database for retaining bubble data in which spatial range information in a three-dimensional space is associated with retrieval information for obtaining service information to be provided, an extracting section for extracting, on the basis of positional information transmitted from the user terminal, specified retrieval information corresponding to specified spatial range information including the positional information, of the spatial range related in the database, and a providing section for providing, to the terminal, specified service information corresponding to the specified retrieval information extracted in the extracting section. This enables acquisition of information on a building in a predetermined range from the user terminal position or service information on a store existing in a specified building in a visual range, and further allows precise seizing of the user's moving direction.
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