US 2006/0242285 A1 · Sensor network system and data transfer method for sensing data

Abstract

To suppress a server processing load and a network load in a sensor network which accommodates a great number of mobile sensor nodes. Among a plurality of distributed data processing servers (DDS) for managing data of sensor nodes, a distributed data processing server (DDS) that is a home server to hold data of a mobile sensor node is set for each sensor node by a directory server (DRS). At each distributed data processing server (DDS), upon reception of the data from the sensor node, identification process is executed as to whether the data is sensor data to be managed by itself or another distributed data processing server. If a result of the identification is the sensor data to be managed by another distributed data processing server, the data is transferred to the distributed data processing server (DDS-1), which corresponds to the home server of the sensor data, based on setting of the directory server (DRS).

Claims29

Dependent claims

A sensor network system, comprising:

a first distributed processing server and a second distributed processing server which are interconnected through a first network to receive data transmitted from a mobile sensor node, wherein:
when the first distributed processing server receives the data transmitted from the sensor node, the data is held in the first distributed processing server;
when the second distributed processing server receives the data transmitted from the sensor node, the second distributed processing server transfers the data;
and
the first distributed processing server holds the data transferred from the second distributed processing server.

2 more elements

A machine-readable medium embodying a program for causing a distributed processing server to receive data from a sensor node and to perform one of transferring the data and holding the data, wherein the program causes the distributed processing server to execute:

a process of receiving the data from the sensor node;
a process of judging a holding place of the data;
a process of transferring the data when the holding place is another distributed processing server;
a process of receiving data from a management server and another distributed processing server;
and
a process of holding data in one of cases where the data is received from the management server and another distributed processing server, and where the holding place of the data is the distributed processing server.

3 more elements

Dependencies are inferred from the claim text.

Sensor network system and data transfer method for sensing data

Life of this patent

Sensor network system and data transfer method for sensing data

Life of this patent

Abstract

Claims29