A system is provided that includes a scanner movable relative to seat units and controllable devices each having RFID tags, the scanner configured to obtain a continuum of received signals, a distance sensor configured to determine a relative position of the scanner, a filter configured to disregard outliers and smooth the continuum into respective sets of received signal data, wherein each set of received signal data includes data points having a unique ID and a received signal strength, and wherein a relative time and a relative position are determined for each data point, and a processor configured to determine a relative location of each RFID tag, based on the relative position associated with maximum received signal strength within the set of received signal data, and generate a data file including pairings of seat units and associated controllable devices based on similar relative positions of RFID tags.