| 摘要 |
PURPOSE: A camera with a focus control device and a registration number recognizing system using the same are provided to automatically control the focus of the camera with an external terminal and enable to be interlocked with an AIV lens, thereby replacing and installing easily. CONSTITUTION: A registration number recognizing system using a camera with a focus control device comprises a sensor unit(2), a photographing unit(3), and an external terminal(5). The sensor unit senses a vehicle. The photographing unit acquires the image information by photographing a preset region when sensing signals are generated by the sensor unit and includes an aperture motor controlling the opening or closing of an aperture. The external terminal detects a registration number of the vehicle based on the image information transmitted from the photographing unit. The external terminal includes a database unit(53), a brightness detecting unit(55), a difference calculating unit(57), an aperture control value generating unit(59), and a registration number recognition unit(61). The external terminal transmits an aperture control value to the photographing unit when the aperture control value is generated. [Reference numerals] (2) Sensor unit; (3) Vehicle photographing unit; (51) Control unit; (52) Communication unit; (53) Database unit; (54) Display unit; (55) Brightness detecting unit; (56) Illumination determining unit; (57) Difference calculating unit; (58) Aperture control determining unit; (59) Aperture control value generating unit; (60) Focal distance detecting unit; (61) Vehicle registration number recognition unit |
