基于单片机的红外遥控电子钟设计1.doc

基于单片机的红外遥控电子钟设计 摘 要 DS1302时钟芯片和DS18B20温度传感器并用红外遥控进行设置的电子钟温度计，以STC89C54单片机为控制核心，并用1602液晶显示作为人机交互界面。可以对周围环境温度进行实时监测，还可以利用红外遥控进行闹钟的设定和时间的调整。 本次基于单片机设计的红外遥控电子钟与传统的机械钟相比，更具有走时准确、显示直观、性能稳定、携带方便、无机械传动装置等优点，因而得到广泛应用。 关 键 词： THE DESIGN OF INFRARED REMORE CONTROL CLOCK BASED ON MCU ABSTRACT This design is mainly to design the system solution of the infrared remote control clock first.Then design the system hardware (circuit diagram) and system software (program).To make it not only has the function of showing year month date hour minute second,but also has the function of showing temperature,telling the time,alarming and remote controlling by infrared. In this design first use literature method,to search the material about the infrared remote control clock,and understand all kinds of MCU,electronic clock chips and temperature collection modules which will use in this design.Second use comparison method,to compare each of them based on the requirement of the design.Analysis the advantages and disadvantages of each MCU,electronic clock chips and temperature collection modules if it is used in this design,then choose the MCU,electronic clock chips and temperature collection modules which has more advantages and less disadvantages.Last use experiment method to decide the design solution. This product is electronic clock and thermometer which can be set by users and based on the real time clock chip DS1302 and the temperature sensor chip DS18B20.And the product use STC89C54 to be its MCU and use 1602 to be its human machine interface.This system can detect the temperature of the environment in real time,and it can be modified the time and set the alarm clock by infrared remote controller. The infrared remote control clock based on MCU has a lot of advantages compared with the traditional mechanical clock,for example the time is accurate,its showing is intuitive,its stable performance,it is easy to carry and there is no mechanical transmission device.So it is used widely. KEY