In order to realize the acquisition, process and monitoring of dispersed multi-point temperature data, the single bus multi-point temperature monitoring and display system is designed. The system adopts several digital temperature inducers DS18B20 as tem-perature acquisition units, numerical LCD 1602C as temperature monitoring and display unit, single chip AT89C51 as the control core. The software and hardware design, analysis and simulation of single bus multi-point temperature monitoring and display system are im-plemented through Proteus platform, realizing the design requirement and the design indexes. This system is adequate for the tempera-ture monitoring and display sites with more temperature detecting points and large space.%为了实现对多点分散温度数据的采集、处理和监控,设计了一个单总线多点温度监测显示系统. 采用多个数字温度传感器DS18B20作为温度采集单元,字符液晶显示器1602C作为温度监测显示单元,单片机AT89C51作为控制核心,结合Proteus软件平台,对单总线多点温度监测显示系统进行了软、硬件设计,并通过分析与仿真实现了设计要求和指标. 该系统适用于测温点多、温度范围分布广或空间较大的温度监测场合.
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