基于CPLD地铁售票控制系统的设计

Design of subway ticket control system based on CPLD

目前,城市交通拥堵已成为了一个世界性的难题,各国在面对这一问题时,往往采用建设容量大、速度快的轨道交通加以应对。随着轨道交通规模的不断扩大,对地铁售票机技术提出了更高的要求。尤其是计算机、人工智能和电子信息技术的快速发展,使地铁售票机技术得到了快速提升。本设计基于CPLD芯片,建立智能地铁售票系统模型,用Verilog HDL语言,对单程车票计算、总票价计算和找零及车票输出等3个模块进行系统设计和软件编程[1],通过编译和仿真,证明本设计的合理性和可行性。随着现代EDA技术的广泛应用,将更大地提高地铁售票系统的运行效率。

Urban traffic congestion is a worldwide problem presently. Countries often adopt rail transit with large capacity and fast speed to deal with it .With the continuous expansion of the scale of rail transit, and with the help of the continuous development of computer, artificial intelligence and electronic information technology, subway ticket machines have been more and more widely used. An intelligent metro ticketing system model is established based on CPLD chip. This paper uses Verilog HDL language to design and program software for three modules: one-way ticket calculation, total ticket price calculation, zero finding and ticket output. Through compilation and simulation, the rationality and feasibility of this design are fully proved. The operation efficiency of metro ticketing system has greatly improved with the wide use of modern EDA technology.