【正文】 rt of the design ..................................................... 42 microcontroller reset circuit part.................................................... 43 Chapter 4 Software Design .............................................................................. 45 total system flow chart............................................................................ 45 Flowchart of each design module function ............................................ 45 Chapter 5 of hardware and software debugging process.................................. 51 smallest singlechip system hardware design ......................................... 51 All chip hardware circuit welding process ............................................. 51 software debugging process ................................................................... 52 SIM300 module is equipped with a hardware munication software debugging process ........................................................................................ 53 basic functions ........................................................................................ 54 Conclusions ...................................................................................................... 55 Acknowledgements .......................................................................................... 57 References ........................................................................................................ 58 Appendix 1 overall circuit design .................................................................... 60 Appendix 2 design of the main program code ................................................. 61 VIII 第 1 章 緒論 供熱計量器的發(fā)展歷程 我 國供熱計量發(fā)展截止到目前共分為三個階段。 關(guān)鍵詞 ： SIM300 LCD1602 DS18B20 溫度采集 按鍵 ABSTRACT In recent years, With the rapid development of regional economy，Environmental pollution problem is getting worse， Prevention of environmental pollution, Protect the environment, Maintain ecological balance, Has bee an important measure of social development, Is the obligation of every citizen. China39。共同為節(jié)能減排做有效的保護措施。系統(tǒng)擴展 了溫度上下限自動報警，按鍵記錄當(dāng)前溫度值。然后及時的處理熱用戶，或者阻止熱用戶的這種浪費行為。本系統(tǒng)的設(shè)計可以有效的 控制不合理的浪費，同時也可降低能源的浪費。進一步加強節(jié)能減排工作，也是應(yīng)對全球氣候變化的迫切需要。安全發(fā)展，才能實現(xiàn)經(jīng)濟又好又快發(fā)展。這種狀況與經(jīng)濟結(jié)構(gòu)不合理，不加快調(diào)整經(jīng)濟結(jié)構(gòu)、轉(zhuǎn)變增長方式，資源支撐不住，環(huán)境容納不下，社會承受不起，經(jīng)濟發(fā)展難以繼續(xù)。 I 具有無線遠(yuǎn)傳的溫度法熱計量器設(shè)計 摘 要 近年來，隨著地區(qū)經(jīng)濟的迅猛發(fā)展，環(huán)境污染問題越來越嚴(yán)重，防止環(huán)境污染，保護環(huán)境，維持生態(tài)平衡，已成為社會發(fā)展的一項重要舉措，也是每個公民應(yīng)盡的義務(wù)。 我國經(jīng)濟快速增長，各項建設(shè)取得巨大成就，但也付出了巨大的資源和環(huán)境代價，經(jīng)濟發(fā)展與資源環(huán)境的矛盾日趨尖銳，群眾對環(huán)境污染問題反應(yīng)強烈。只有堅持節(jié)約發(fā)展、清潔發(fā)展。同時 ，室溫氣體排放引起全球氣候變暖，備受社會廣泛關(guān)注。 如今取暖已經(jīng)成為了節(jié)能減排的重要目標(biāo)。設(shè)計本系統(tǒng)主要的目的是利用SIM300 將供熱戶的室內(nèi)溫度定時的發(fā)送到供熱中心，供熱中心可以及時的發(fā)現(xiàn)熱用戶是否在浪費熱源（如開窗戶，放熱水等）。這樣做的目的即實現(xiàn)了節(jié)能減排，又同時進行合理的收取供熱費用，真正的實現(xiàn)了，溫度法熱計量收費的目的。同時熱用戶可以把供熱不良的問題及時的反應(yīng)給供熱中心，這樣做可以達到雙方 有效的憑證。本系統(tǒng)還增加了年月，日，時，分，秒，星 II 期等功能。s rapid economic growth, The construction has made great achievements, But also paid a huge resource and environmental costs, Economic development and resources and the environment bee increasingly acute contradictions, Masses reacted strongly to environmental pollution problems. This situation and the economic structure is irrational, Do not speed up the adjustment of economic structure, change the mode of growth, Resources can not support, the environment does not fit, can not afford the social and economic development is difficult to continue. Only by adhering to conservation development, clean development. Security and development in order to achieve sound and rapid economic development. Meanwhile, the room temperature gas emissions cause global warming, a subject of widespread concern. Further strengthen energy conservation work, but also respond to the urgent need for global climate change. Today heating energy conservation has bee an important goal. The system is designed to effectively control the unreasonable waste, but also to reduce energy waste. The main purpose of this system design is the use of the heating households SIM300 indoor temperature regularly sent to the central heating, heating center can be found in a timely manner whether the waste heat source heat users (such as opening the window, put hot water, etc.). And timely treatment heat III users, or to prevent such waste heat user behavior. The aim is to achieve energy conservation, but also for a reasonable charge heating costs, the true realization, temperature method heat metering and charging purposes. System extends the upper and lower temperature alarm, keyloggers current temperature value. Meanwhile heat users can put the problem of poor heating timely response to the heating center, doing so both sides can reach a valid certificate. Together for effective protection to energy saving measures. The system also increased the years, days, hours, minutes, seconds, weeks and other functions. Keywords: SIM300 LCD1602 DS18B20 Temperature acquisition Button IV 目 錄 摘 要 ......................................................... I ABSTRACT ..................................................... II 第 1 章 緒論 ................................................... 8 供熱計量器的發(fā)展歷程 .................................... 8 研究的目的和意義 ........................................ 3 研究 /設(shè)計的目標(biāo) ......................................... 3 第 2 章 系統(tǒng)的工作原理 ......................................... 5 系統(tǒng)的原理 .............................................. 5 CPU（ STC12C5A60S2） 主要性能 ............................. 6 CPU 的主要性能 ....................................... 6 功能特性描述 ......................................... 6 第 3 章 系統(tǒng)的硬件選擇 ........................................ 10 本系統(tǒng)的構(gòu)成 ........................................... 10 本系統(tǒng)的硬件選擇 ....................................... 10 溫度傳感器的選擇 .................................... 11 AD 轉(zhuǎn)換芯片的選擇方案 ..............