Method, computer program, computer program product and system for handling sensor data

A method in a sensor data system for handling sensor data, the method comprising:

• receiving the sensor data from a plurality of sensors,
• filtering the received sensor data, based on a predefined criteria, wherein the filtering comprises discarding at least some of the received sensor data, and wherein the discarding the at least some of the received sensor data based on the predefined criteria comprises:
• discarding sensor data from a sensor of the plurality of sensors, wherein the sensor data, to be discarded, is received within a time interval after a previous received data from the sensor, and wherein the previous received data from the sensor is the latest stored data,
• storing undiscarded sensor data in an observations database,
• recording usage of the stored sensor data, wherein the recording the usage of the stored sensor data comprises logging a first stored sensor data that is used by a data user and a second stored sensor data that is unused by the data user,
• determining relevance of the stored sensor data based on the recorded usage, wherein the relevance of the stored sensor data is determined by calculating an influence of the stored sensor data, and wherein the influence of the stored sensor data is calculated by measuring relevance of each of the plurality of sensors,
• deciding to remove excess stored sensor data that have the determined relevance below a limit from the observations database, and to retain relevant stored sensor data that have the determined relevance above the limit in the observations database, to limit a size of the sensor data stored in the observations database, and
• controlling a plurality of actuators by using the retained relevant stored sensor data, wherein the controlling the plurality of actuators comprises activating at least one actuator of the plurality of actuators based on the retained relevant stored sensor data.

A computer program, comprising computer readable code means, which when run by a processor in a sensor data system causes the sensor data system to perform the following steps:

• receiving sensor data from a plurality of sensors,
• filtering the received sensor data, based on a predefined criteria, wherein the filtering comprises discarding at least some of the received sensor data, and wherein the discarding the at least some of the received sensor data based on the predefined criteria comprises:
• discarding sensor data from a sensor of the plurality of sensors, wherein the sensor data, to be discarded, is received within a time interval after a previous received data from the sensor, and wherein the previous received data from the sensor is the latest stored data,
• storing undiscarded sensor data in an observations database,
• recording usage of the stored sensor data, wherein the recording the usage of the stored sensor data comprises logging a first stored sensor data that is used by a data user and a second stored sensor data that is unused by the data user,
• determining relevance of the stored sensor data based on the recorded usage,
• deciding to remove excess stored sensor data that have the determined relevance below a limit from the observations database, and to retain relevant stored sensor data that have the determined relevance above the limit in the observations database, to limit a size of the sensor data stored in the observations database, and
• controlling a plurality of actuators by using the retained relevant stored sensor data, wherein the controlling the plurality of actuators comprises activating at least one actuator of the plurality of actuators based on the retained relevant stored sensor data.