Patent ID: 8045960

Claim:
An access control system comprising: at least one mobile satellite target site defined in part by a motor vehicle with an externally mounted satellite access station for controlling human access to said satellite target site, said satellite access station includes an first identification device, a first storage device and a first transceiver, said first storage device includes a satellite site database containing a list of access information for said satellite target site, and a stationary base station said base station includes an identification device, storage device and a transceiver, said storage device includes a master database containing a list of access information for each of said at least one satellite access stations, wherein each of the at least one mobile satellite target sites detects when it is within radio range of the base station whereby information contained in said master database for each particular satellite access station including at least identifiers of a plurality of persons authorized to access the particular satellite station is provided to said particular satellite access station and the identifiers of the plurality of persons are stored in said satellite site database whereby the identifiers are independently used by the particular satellite station to restrict access to persons authorized to access the particular satellite station both when the satellite station is within radio range of the base station and also when the satellite station is beyond radio range of the base station wherein the at least one mobile satellite station periodically detects that it is within radio range of the stationary base station based upon a reception of a position signal from the stationary base station and enters a connected state the at least one mobile satellite station then sends an acknowledgement signal and updates to the stationary base station to be stored in memory of the stationary base station and upon detecting that the at least one mobile satellite station is out of range of the stationary base station based upon not receiving the position signal from the stationary base station in a predetermined period of time, the at least one mobile satellite station enters a disconnected state where the at least one mobile satellite station operates to restrict access to a target area independently of the stationary base station.