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Sensor network system and data retrieval method for sensing data

  • US 8,671,136 B2
  • Filed: 03/23/2007
  • Issued: 03/11/2014
  • Est. Priority Date: 01/14/2005
  • Status: Expired due to Fees
First Claim
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1. A data retrieval method for retrieving, at user terminals, data transmitted from a plurality of sensor nodes, the data retrieval method comprising operations of:

  • storing raw data transmitted from the plurality of sensor nodes, in distributed servers, wherein the raw data is before conversion into user-interpretable data, and wherein the raw data includes an attribute information concerning at least one of;

    a place;

    a temperature;

    a name; and

    , a number of persons,using a management server connected through a network with the distributed servers and the user terminals, the management server containing correspondence information to correspond model names identifying a real-world event of a real-world model, with information link pointers pointing to at least one portion of the raw data which corresponds to the model names, respectively,using the management server to accept data reference requests from the user terminals, wherein an operation to accept a data reference request from a user terminal includes;

    accepting key words from the user terminal,responding to the user terminal with candidate ones of the model names possibly corresponding to the key words, andaccepting at least one model name chosen by the user terminal from among the candidate ones of the model names, as the data reference request,using the management server to acquire relevant raw data, from among the raw data stored in the distributed servers, based on the data reference request from the user terminal and the model names and information link pointers stored in the management server, and to respond with the data converted into the user-interpretable data which is in a form understandable to a user, to the user terminal, andwherein the operation to respond to the user terminal with the data converted into the user-interpretable data includes;

    converting the relevant data acquired into information understandable for a user, based on a previously set conversion technique which is pre-stored in an attribute interpretation list, andresponding to the user terminal with the converted data, andwherein as to the conversion technique pre-stored in the attribute interpretation list;

    if the relevant raw data acquired includes the attribute information which is preset for interpretation as a subject place, the relevant data acquired is converted into information corresponding to the subject place, in a converted form which is understandable by a user,if the relevant raw data acquired includes the attribute information which is preset for interpretation as a subject temperature, the relevant data acquired is converted into information corresponding to the subject temperature, in a converted form which is understandable by a user,if the relevant raw data acquired includes the attribute information which is preset for interpretation as a subject name, the relevant data acquired is converted into information corresponding to the subject name, in a converted form which is understandable by a user, andif the relevant raw data acquired includes the attribute information which is preset for interpretation as a subject number of persons, the relevant data acquired is converted into information corresponding to the subject number of persons, in a converted form which is understandable by a user.

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