1. A process for detecting conditions within a sensor cloud and triggering events using an RFID system having a plurality of read zones, comprising: obtaining the spatio-temporal state of a plurality of sensors within the sensor cloud using the RFID system, where the spatio-temporal state of each sensor includes sensor information, a time stamp, and a spatial location specified independently of the read zones of the RFID system; storing the spatio-temporal state of the plurality of sensors within a spatio-temporal database; applying at least one filter to the spatio-temporal data to detect the presence of at least one condition; and triggering at least one event based upon the detection of the at least one condition.