Sensor network system and data retrieval method for sensing data

a sensor network and data retrieval technology, applied in the field of sensor network system and data retrieval method for sensing data, can solve the problems of not being able to efficiently retrieve real-time information from a huge amount of sensor information connected with the network concerned, and for the retrieval of changes in information, so as to prevent excessive load on the management server, easy and fast necessary information, and restricting any excessive growth of traffic
US20060161645A1Inactive Publication Date: 2006-07-20HITACHI LTD
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
HITACHI LTD
Publication Date
2006-07-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

This invention enables to easily retrieve real-time information from a large number of sensors connected to a network. The sensor network system of this invention includes distributed data processing servers for collecting data from plural sensors at a predetermined frequency, a management server for maintaining a location of sensor data, user terminals for requesting data to the management server, and a first network for connecting with the management server, user terminals and plural distributed data processing servers. The management server includes a model table having model names previously set and information link pointers for indicating which distributed data processing server collects data corresponding to the model names, and a search engine for acquiring data requested by the user terminals from the distributed data processing servers corresponding to the information link pointers based on the model table and for responding to the user terminals with the data.
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Description

CLAIM OF PRIORITY

[0001] The present application claims priority from Japanese application P2005-7525 filed on Jan. 14, 2005, the content of which is hereby incorporated by reference into this application. BACKGROUND OF THE INVENTION

[0002] This invention relates to a technology of using information supplied by a large number of sensors connected with the network.

[0003] The Internet and other networks have been used in recent years mainly for accessing documents, images, movies, sounds or other stored contents through search engines or previously set links. In other words, the technology of accessing the stored contents has been nearly completed.

[0004] On the other hand, a technology of transmitting the current information is streaming technology made up of continuously transmitting images captured by a camera installed at a fixed position (web camera). Lately, sensor network technology of acquiring through a network sensing data acquired from a large number of small wireless sens...

Claims

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