The Temperature And Humidity Of The Detection System Based On Stm32

At present, with the development of the modern society, more and more science technologyis applied in the field of agricultural production. In the greenhouse, the acquisition oftemperature and humidity, carbon dioxide concentration of external parameters of the real-timecan be accurate measured and adjusted is the important premise which can ensure the efficient inagricultural.This paper designs and realizes a intelligent temperature and humidity detection systembased on Single-chip microcomputer, and the main paper has made the following several aspects:first through to the real time and accuracy, economy and expansibility, the analysis of the fourdirections after comparing, choose the STM32F103VE microcontroller as the main control chipand AM2303temperature and humidity sensor to the collection of data; Then detailed introducesthe work principle of each module and the hardware circuit design ideas, set the abnormalautomatic alarm circuit, realize the temperature and humidity data real-time accuratemeasurement; Expounds the system after each part of the software design train of thought; In theend, the paper introduces the system in the actual application of the collected data processing,analyzes the causes of the error, and thro ugh the piecewise linear interpolation algorithm fornonlinear system error compensation, the data acquisition with the compensation are higheraccuracy and better stability when without it.In order to ensure the effect of measurement based on this system design of fullyconsidering to price, quality and development such as periodic again, with lower cost andfacilitate the development of the design, versatility and other characteristics, not only applicableto the modern agricultural production, also can be used in other fields such as industrial control,machinery manufacturing and others. The system has a good value of market popularization.