1. A sensor system, comprising: a plurality of sensors or transducers to respectively capture information pertaining to one or more images or keyframes of a space, wherein respective pose information of the plurality of sensors or transducers relative to the space is known and comprises an orientation of the plurality of sensors or transducers within the space; at least one processor of a remote computing system configured to receive the information captured by the plurality of sensors or transducers and to determine whether the information is to be used in constructing or updating a map residing on the remote computing system and to select and discard at least a first part of the information that is determined not to be used to construct or update the map; the at least one processor further configured to identify a plurality of layers of signature information pertaining to at least the space; the at least one processor further configured to modify the map into an overlaid map at least by placing the plurality of layers of signature information in context with each other in relation to the map; the at least one processor further configured to determine multiple pieces of location information from at least the plurality of layers of signature information that are aligned in the overlaid map, the multiple pieces of location information respectively and uniquely corresponding to a plurality of locations in the space; the at least one processor further configured to determine multiple pieces of fingerprint data for the plurality of locations in the space using at least some of the multiple pieces of location information; the at least one processor further configured to construct or update at least a portion of the map residing on the remote computing system and corresponding to the space at least by selecting and using the at least a second part of the information from the information captured by the plurality of sensors or transducers to represent the space as a node and by storing one or more pieces of fingerprint data for the node in a set of fingerprint data, rather than storing a keyframe or an image from which the fingerprint data is derived, based at least in part on the at least the second part of the information; and a wireless network to transmit the overlaid map to a virtual or augmented reality display system that determines a real-world location in the space at least by using at least the set of fingerprint data derived at least from images or keyframes pertaining to a plurality of nodes in the overlaid map, and displays virtual content to the user of the virtual or augmented reality display system in relation to the real-world location.