Patent ID: 8074260

Claim:
An interactively authorizing access control method applicable to an access control center for determining whether at least an object is allowed to pass or not, the method comprising the steps of: (a) providing an authorized person of the object with at least one permit, the authorized person being allowed to remotely connect to the access control center and set an effective time interval in the access control center for the at least one permit to pass through the access control center; (b) having the access control center identify whether the at least one permit is valid for the object to pass, if the at least one permit is valid, the step (c) is performed, or else the object is not allowed to pass through the access control center; (c) determining whether the at least one permit is effective according to the effective time interval in the access control center set by the authorized person, if the at least one permit is effective, the object is allowed to pass, or else the step (d) is performed; and (d) sending an instant message about a status of the object to the authorized person and determining whether the object is allowed to pass according to a response message from the authorized person, wherein the instant message about the status of the object and the response message are transferred through a first communication device, the effective time interval is set through a second communication device, the access control center is remotely connected through the second communication device and the access control center is used in one of a parking lot, a marketplace, a house and a building.