Patent ID: 7716489

Claim:
A security system for one or more disconnected automation devices, comprising: a central access control authority that provides one or more access regulations for one or more automation devices, wherein the one or more automation devices are remote from the central access control authority; and a portable unit that connects to the central access control authority, receives the one or more access regulations from the central access control authority, caches the one or more access regulations in memory, controls a timeframe for which the one or more access regulations are valid, transfers the one or more access regulations to the one or more automation devices, and deletes the one or more access regulations from memory upon expiration of the timeframe for which the one or more access regulations are valid wherein the one or more automation devices receive the one or more access regulations from the portable unit and grant a level of access to the one or more automation devices based at least in part upon the one or more access regulations.