Sensor module, sensor network system, data transmission method, data transmission program, and data collection method in sensor network system

A sensor network system configured to transmit at a predetermined transmission interval measurement data obtained through measurement by sensor modules to an information processing device from the sensor modules via a network, the sensor network system comprising:

• group setting means for setting a predetermined module group in which a plurality of sensor modules for transmitting to the information processing device measurement data according to data processing in the information processing device are put together, based on predetermined parameters that relate to measurement by the sensor modules belonging to the sensor network system;
• reference sensor module setting means for setting, as a reference sensor module, one sensor module for which a transmission interval of the measurement data is maintained at the predetermined transmission interval, among the predetermined module group;
• and
• transmission interval changing means for changing a transmission interval of the measurement data of a sensor module other than the reference sensor module among the sensor modules included in the predetermined module group to a prolonged transmission interval that is longer than the predetermined transmission interval.

A data transmission method for transmitting at a predetermined transmission interval, via a network, data obtained by measurement from a sensor module that has performed the data measurement to an information processing device that is installed externally, the method comprising:

• a group setting step of setting, together with a nearby sensor module located in the surroundings of the sensor module, a predetermined module group in which a plurality of sensor modules for transmitting to the information processing device measurement data according to data processing in the information processing device are put together, based on predetermined parameters that relate to measurement by the sensor module and the nearby sensor module;
• a reference sensor module setting step of setting, together with the nearby sensor module, as a reference sensor module, one sensor module for which a transmission interval of the measurement data is maintained at the predetermined transmission interval, among the predetermined module group;
• and
• a transmission interval changing step of changing, if the sensor module is a sensor module other than the reference sensor module of the sensor modules included in the predetermined module group, the transmission interval of the measurement data of the sensor module to a prolonged transmission interval that is longer than the predetermined transmission interval.

A data transmission program for causing a sensor module, which transmits, via a network, data obtained by measurement at a predetermined transmission interval to an information processing device that is installed externally, to execute:

• a group setting step of setting, together with a nearby sensor module located in the surroundings of the sensor module, a predetermined module group in which a plurality of sensor modules for transmitting to the information processing device measurement data according to data processing in the information processing device are put together, based on predetermined parameters that relate to measurement by the sensor module and the nearby sensor module;
• a reference sensor module setting step of setting, together with the nearby sensor module, as a reference sensor module, one sensor module for which a transmission interval of the measurement data is maintained at the predetermined transmission interval, among the predetermined module group;
• and
• a transmission interval changing step of changing, if the sensor module is a sensor module other than the reference sensor module of the sensor modules included in the predetermined module group, the transmission interval of the measurement data of the sensor module to a prolonged transmission interval that is longer than the predetermined transmission interval.

A data collection method in a sensor network system for transmitting measurement data obtained through measurement by sensor modules at a predetermined transmission interval to an information processing device from the sensor modules via a network, and collecting the measurement data in the information processing device, the method comprising:

• a group setting step of setting a predetermined module group in which a plurality of sensor modules for transmitting to the information processing device measurement data according to data processing in the information processing device are put together, based on predetermined parameters that relate to measurement by the sensor modules belonging to the sensor network system;
• a reference sensor module setting step of setting, as a reference sensor module, one sensor module for which a transmission interval of the measurement data is maintained at the predetermined transmission interval, among the predetermined module group;
• and
• a transmission interval changing step of changing a transmission interval of the measurement data of a sensor module other than the reference sensor module among the sensor modules included in the predetermined module group to a prolonged transmission interval that is longer than the predetermined transmission interval.