外文翻译---基于单片机的多功能温度检测系统的设计(7)

software mainly include: function declarations, time delay function and DS18B20 initialization function, read the temperature, temperature DS18B20 data into a liquid crystal display characters such programs.

5、Summary

With the continuous development of industry of temperature measurement, the higher requirement, and more and more wide measuring range, so are the requirements for temperature detection technology more and more is also high.

DSl8B20 introduced new digital temperature sensor and AT89S52 SCM, LCD1602 LCD module for constructing the temperature testing system. The hardware circuit and main program and system design of each module subroutines. This system USES the DALLAS is the digital temperature sensor DS18B20, plus A/D can output the digital quantity, the temperature signal directly convert serial digital signal processing for microcomputer. Accordingly. This system has the hardware circuit structure is simple, high precision, and shows the result conversion clear stability, low cost and significant advantages. In temperature measurement, such as grain of intelligent building, central air conditioning of the occasion to temperature testing has good application prospects.

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