A microprocessor-based gate security system

A microprocessor-based security system for gate control in a housing estate is described. The system provides efficient gate access and estate control to perform the job of the gate security guard. Identification of a visitor is done mainly through direct communication with the unit of the housing estate concerned. Dialing up to the units through a hands-free telephone at the gate is generated by the system. The tenants of the units reserve the right to let the visitor into the compound by controlling the gate using the telephone set. For security reasons, interactions at the gate are logged onto the system. A hardcopy of these visits can be obtained for verification purposes