Abstract: A method and apparatus for locating a beacon in physical space, where the beacon communicates with at least one of a plurality of gateways in the physical space. First signals are transmitted between gateways located at respective physical locations. Gateway-to-gateway measurements of power related to the first signals are stored. The gateway-to-gateway measurements are averaged to obtain averaged gateway-to-gateway measurements. Second signals are transmitted between a beacon and one or more of the gateways. Beacon-to-gateway measurements of power related to the second signals are stored. The beacon-to-gateway measurements are averaged to obtain averaged beacon-to-gateway measurements. First distances between the beacon and the gateways are calculated based on the averaged gateway-to-gateway measurements and the averaged beacon-to-gateway measurements.

Abstract: A data acquisition management system comprises a plurality of sensors, each for acquiring sensor data based on respective physical or logical conditions; a plurality of beacons for acquiring the sensor data transmitted from the sensors; a processing engine comprising a trigger data file for storing conditions under which each of a plurality of trigger alerts occurs, wherein each of the trigger alerts includes a unique identifier, respectively, respective one or more thresholds which when crossed initiates the trigger alerts, and pointers that directly or indirectly reference the unique identifiers of the sensors that provide the sensor data that is used to determine if any of the trigger alerts occurs; and a trigger alert transmitter for transmitting each trigger alert to a designated one of a plurality of end terminals.