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關(guān)鍵詞:熱電偶;STC15W1K24S單片機(jī);MAX6675芯片;控制系統(tǒng);燃?xì)庠?/p>
中圖分類號:TH811 " " "文獻(xiàn)標(biāo)志碼:A " " " " "文章編號:2095-2945(2024)20-0032-07
Abstract: In this paper, an intelligent gas stove abnormal flameout protection and control system is designed. The gas combustion temperature of the gas stove is collected by thermocouple sensor, and STC15W1K24S single-chip microcontroller is used as the core controller. The principle of thermocouple temperature measurement is introduced, and MAX6675 chip is used to convert thermocouple's thermopotential signal into digital signal. The thermocouple is collected and processed through the IO port of the single-chip microcontroller STC15W1K24S, and the gas valve is turned on and off according to the collected temperature threshold.
Keywords: thermocouple; STC15W1K24S single-chip microcontroller; MAX6675 chip; control system; gas stove
隨著物聯(lián)網(wǎng)技術(shù)的發(fā)展,越來越多的家庭使用智能家用燃?xì)庠钸M(jìn)行烹飪,以實(shí)現(xiàn)更便捷、更輕松的烹飪方式,是廚房電器的一次新的科技革命。本文以傳統(tǒng)灶具為平臺,利用傳感器技術(shù)、單片機(jī)技術(shù)設(shè)計(jì)了智能燃?xì)庠町惓Oɑ鸨Wo(hù)控制系統(tǒng),用熱電偶傳感器采集燃?xì)庠畹娜細(xì)馊紵郎囟龋許TC15W1K24S單片機(jī)作為核心控制器件進(jìn)行信號采集處理,當(dāng)燃燒溫度異常或熱電偶斷線時(shí),氣閥關(guān)閉(以燈泡的開啟來模擬),當(dāng)燃燒溫度正常時(shí),氣閥打開(以燈泡的關(guān)閉來模擬)。整個(gè)控制系統(tǒng)的控制信息可以顯示在管理中心系統(tǒng)上。
1 "熱電偶傳感模塊以及和單片機(jī)的硬件連接
1.1 "熱電偶傳感模塊介紹
熱電偶是最常用的測溫元件之一,能夠直接將溫度信號轉(zhuǎn)換為熱電勢信號,再配以信號放大處理電路等,可以輸出模擬量信號,也可以用數(shù)字處理電路,將熱電勢信號轉(zhuǎn)換為數(shù)字信號,直接由單片機(jī)或者上位機(jī)采集測量信號。
K型熱電偶是廉價(jià)金屬熱電偶的一種,由于K型熱電偶具有線性度好,熱電動勢大,靈敏度高,熱穩(wěn)定性和均勻度較好,價(jià)格便宜等優(yōu)點(diǎn),是目前最常使用的熱電偶類型之一。……