Patent ID: 7848729
Filing Date: 2010-12-07
Classification: G01D,G01J,G01K

Abstract:
1. A method of saving sensor power consumption based on context information, the method comprising: receiving basic context information from at least one of inside and outside of a network system comprising a plurality of sensors, the basic context information comprising at least one of temperature, movement, pressure, and light, based on a function of a sensor; determining context information by inference based on the basic context information; determining one or more expected services corresponding to the context information; extracting one or more attributes of a sensor necessary for the one or more expected services; sorting the plurality of sensors into one or more interest sensors and one or more non-interest sensors, based upon the one or more extracted sensor attributes; determining a first sensor operation mode having a first sensing period and a second sensor operation mode having a second sensing period, according to the one or more expected services, wherein the first sensing period is different in amount of time from the second sensing period; and transmitting control data to the interest sensors according to the first sensor operation mode and transmitting control data to the non-interest sensors according to the second sensor operation mode.