A device 10 for aligning a patient for delivering a plurality of radiation beams comprising a patient support surface 12, a coarse alignment subsystem 14 connected to the patient support surface, and a fine alignment subsystem connected to the patient support surface 16. An anchor point function serves at least one mobile host. In an information reconciliation phase, an error-correcting protocol is applied to the new first and new second digital channel, and in carrying out a secrecy amplification phase, a hash function is applied to the new first and the new second digital channel. The data transform operation may include generating andor updating a topology model, assigning metrics to model object, updating properties of model object, creating associations between existing model objects, or the like.