摘要：本文设计了基于AT89S52单片机的室内温度无线远程控制系统，描述了利用数字温度传感器DS18B20开发测温系统的过程，重点对传感器在单片机下的硬件连接，软件编程以及各模块系统流程进行了详尽分析，对单一总线结构的数字温度传感器DS18B20的数据采集过程和各部分的电路也一一进行了介绍。DS18B20与AT89S52结合实现了最简温度检测系统，而无线控制模块的扩展使该系统有了新的进展与突破。该系统可以方便的实现温度采集和显示，同时在无线接发器的基础上实现了对室内温度的远程控制。

　　　该系统结构简单，使用方便，具有精度高、量程宽、灵敏度高、体积小、功耗低等优点，适合于我们日常生活和工、农业生产中的温度测量。

关键词: 单片机AT89S52；数字温度传感器DS18B20；显示器LCD1602；编码芯片PT2262 /PT2272

Abstract：This paper designed indoor temperature wireless remote control system based on microcontroller AT89S52, describes the process of digital temperature sensor DS18B20 development of temperature measurement system, focus on the sensor connection under the single-chip hardware, software programming, as well as the module system processes a detailed analysis,on a single bus structure of the digital temperature sensor DS18B20 data collection process and the various parts of the circuit one by one introduced. DS18B20 and the AT89S52 combination to achieve the most simple temperature sensing system, the expansion of wireless control module of the system have made new progress and breakthrough. The system can easily achieve the temperature acquisition and display, remote control indoor temperature on the basis of the wireless sending and receiving.This system is simple, easy to use, high precision, wide range, high sensitivity, small size, low power consumption, suitable for our daily lives and work, the temperature measurement in the agricultural production.

Keywords: Single Chip Microcomputer AT89S52； digital temperature sensor DS18B20； LCD1602 displays； encoding chip PT2262 / PT227