Design Of Taxi Meter Based On FPGA

This article presents a method of how to use FPGA to design a taxi meter, and how to replace traditional electrical design with burgeoning EDA parts.The develop period can be short because of the programmable FPGA and the design method which is simple and variable. It can also make the taxi count meter smaller and more functional.Besides the basic functions of taxi count meter, some new ideas are added concerning about the particularity of this calling. It becomes more transplantable and easier to upgrade by using of the FPGA and programming with VHDL language.Replacing the traditional LED with LCD make the display more flexible and can be displayed according to which is needed and won't be limited by the hardware. The linkage between the cost factors which can be influenced by oil and the taxi cost may be possible through the flexible setting of the cost calculation standard. THis method can be more practical by adding some new functions including statistic function, password setting, overspeed alarm and bridge travel expenses.