基于CPLD的ATM安全警示系统设计

介绍了以CPLD（复杂可编程逻辑器件）为核心的ATM（自动柜员机）安全警示系统的设计。该系统由CPLD开发平台、红外检测单元、超声波测距单元、语音提示单元、激光封锁单元和闪光预警单元组成。当有人存取款时，系统显示等候人的距离，同时LED（发光二极管）显示屏实时模拟等候人的靠近情况。语音模块会根据等候人的位置做出相应的提示。如果有人强行闯入激光封锁线，则闪光灯闪光，同时语音模块发出报警。

Design of the Security System for ATM Based on CPLD

The design of security system for ATM based on CPLD is introduced in this paper. The system consists of a the development platform of CPLD,an infrared detection unit,an ultrasonic ranging unit,a voice hinting,a laser blocking unit and a flashing warning unit.When someone is depositing or drawing money from ATM,the distance of another waiting person who would like to draw money from ATM will be shown on digital tubes.At the same time,the person's closing was simulated by LED.A voice module would make an appr...