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室内温度检测与调控系统设计
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介绍了以DS18B20基础设计室内温度检测与调控系统的基本过程，该系统以AT89C52单片机为主控器，采用单线多点检测技术，在一条总线上挂接5个DS18B20温度检测点，并循环检测读取各检测点温度数值，可根据实际情况设定阈值，当其中任意3个检测点的温度均超过阈值时，实施超温告警及自动温度调节功能，实验测试结果达到了预期的设计目标。该系统改进了一般温度检测装置单点测试及只测温而不能调节温度的缺陷，可应用于对环境温度要求严格的病房、居室、办公室、小型仓库等场所。
Abstract:
This paper introduced the design process of indoor temperature detection and automatic control system based on DS18B20. The system controller was AT89C52， and used one-way multi-point detection.Five temperature detection points of DS18B20 was attached to the bus， it was be loop detected and read of temperature of every test point， and could be set thresholds based on the actual situation， when temperature of any three test points exceeded threshold， and started the function of over-temperature alarm and automatic temperature control， the test results have achieved the desired design goals， The system improves the defects of general temperature detector that test by a single point and only test temperature but not regulate the temperature，it can be used for ward，room，office，small storage and so on that to be strict in environmental temperature.
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2011-05-20
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2011-04-16
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