Microprocessor based access control system for use with road vehicles

摘要

A vehicle may be reserved by telephoning a central station (1) that has a management computer (2). Communication may be made via a telephone network to a fixed station having a radio telephone (7). The vehicle (8) has a microprocessor (20) to which is coupled a mobile telephone (12). Other inputs are provided by the vehicle tachometer (16), card reader (15), keyboard (19) and infrared interface (17). Access to the vehicle requires that a user chip card (23) is entered into the infrared hand-held unit (22). An identification number has to be entered through the keyboard.