基于51单片机的红外计数器的设计.pdf

摘 要 在许多特殊场合，为了方便考勤或者是有效避免闲杂人员的干扰，需要对进出人数 进行有效统计和管理。本设计基于使用方便、应用广泛和典型的原则，设计出一种以单 片机为控制核心的红外计数器。该检测系统可实时对人数进行统计与管理，其核心器件 是红外光电传感器和单片机，配合其它模块电路即可实现对某个场所进出人数的统计， 并在人数超出一定的管理范围时，通过报警装置进行提醒。该设计主要是以红外传感器 的收发信号来获得数据，然后送到单片机，通过液晶显示电路实现数据的可视化，通过 键盘电路控制报警值。能够广泛应用于各大高校、会场等诸多需要对人数进行统计与管 理的场合。 关键词：单片机;人数统计;传感器 I ABSTRACT In many special occasions, in order to facilitate time and attendance or to effectively avoid the interference of miscellaneous personnel, it is necessary to effectively count and manage the number of people entering and leaving. This design is based on the principles of ease of use, wide application, and typicality, and an infrared counter with a single-chip microcomputer as the control core is designed. The detection system can count and manage the number of people in real time. Its core devices are infrared photoelectric sensors and single-chip microcomputers. With other module circuits, it can count the number of people in and out of a certain place. Device to remind. The design mainly obtains the data by sending and receiving signals from the infrared sensor, and then sends it to the single-chip microcomputer to realize the data visualization through the liquid crystal display circuit and control the alarm value through the keyboard circuit. It can be widely used in major universities, conference venues and many other occasions that need to count and manage the number of people. KEYWORDS:Single chip microcomputer;People Counting;Sensor II 目 录 第 1 章 绪论 1 1.1 背景和意义 1 1.2 研究概况和发展趋势 1 1.3 毕业设计的主要内容 2 第 2 章 系统总