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摘要：溫濕度作為一個(gè)重要的物理量，是糧食倉(cāng)庫(kù)中最普遍、最重要的工藝參數(shù)之一。隨著科學(xué)技術(shù)的不斷更新，對(duì)溫濕度測(cè)量的準(zhǔn)確性要求不斷提高,因此溫濕度檢測(cè)也成為一個(gè)重要的研究課題。 本設(shè)計(jì)是基于單片機(jī)對(duì)數(shù)字信號(hào)的高敏感性和可控性以及數(shù)字溫濕度傳感器可以產(chǎn)生數(shù)字信號(hào)的性能，設(shè)計(jì)了以STC89C52為核心的一套控制系統(tǒng)，其中包括單片機(jī)、溫濕度檢測(cè)、鍵盤(pán)及顯示、報(bào)警電路、系統(tǒng)軟件等部分的設(shè)計(jì)。 STC89C52是一種低功耗、高性能CMOS8位微控制器，具有 8K可編程Flash 存儲(chǔ)控器。DHT11數(shù)字溫濕度傳感器是一款含有已校準(zhǔn)數(shù)字信號(hào)輸出的溫濕度復(fù)合傳感器。它應(yīng)用專用的數(shù)字模塊采集技術(shù)和溫濕度傳感技術(shù)，確保產(chǎn)品具有極高的可靠性與卓越的長(zhǎng)期穩(wěn)定性。 關(guān)鍵詞:溫濕度；STC89C52；DHT11傳感器
Abstract: Temperature and humidity as an important physical quantity, is one of the most common food warehouse, the most important process parameters. As the times progress, social development, science and technology constantly updated, the accuracy of measurement of temperature and humidity requirements continue to improve, so the temperature and humidity testing has also become an important research topic. The design is based on single-chip digital signal high sensitivity and controllability, as well as digital temperature and humidity sensors can produce the performance of digital signal, design a control system STC89C52 as the core, Including the microcontroller, temperature and humidity testing, keyboard and display, the alarm circuit, system software, and other parts of the design. STC89C52 a low-power, high performance CMOS8 bit microcontroller with 8K programmable Flash storage controller. DHT11 digital temperature and humidity sensor is a composite Sensor contains a calibrated digital signal output of the temperature and humidity. Application of a dedicated digital modules collection technology and the temperature and humidity sensing technology, to ensure that products with high reliability and excellent long-term stability Key words: Temperature and Humidity; STC89C52; DHT11 sensor
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