本文選題：嵌入式應(yīng)用 + 物聯(lián)網(wǎng)　； 參考：《長安大學(xué)》2017年碩士論文

【摘要】：近年來隨著經(jīng)濟(jì)發(fā)展,工業(yè)污染、土地沙漠化日趨嚴(yán)重,大氣顆粒物污染問題愈加突出;伴隨復(fù)合型家裝材料的廣泛應(yīng)用,室內(nèi)空氣的甲醛、苯污染問題同樣不可忽視,空氣質(zhì)量問題已引起越來越多的人關(guān)注。室外大環(huán)境空氣質(zhì)量信息已有機構(gòu)發(fā)布。而人們身邊小環(huán)境以及室內(nèi)空氣檢測手段較少,檢測的價格也更高,檢測結(jié)果無法聯(lián)網(wǎng),不能遠(yuǎn)程實時監(jiān)測,無法滿足普通家庭對室內(nèi)和身邊空氣質(zhì)量信息及時獲取的需求。針對此現(xiàn)狀,本文設(shè)計并實現(xiàn)了一套基于QQ物聯(lián)平臺的空氣質(zhì)量檢測系統(tǒng)。系統(tǒng)可分為感知、傳輸和應(yīng)用三個層面。感知層設(shè)計基于各類傳感器,完成系統(tǒng)的數(shù)據(jù)采集,硬件核心處理器采用意法半導(dǎo)體公司基于ARM Cortex-M3內(nèi)核的STM32微處理器,各傳感器直連STM32。各個傳感器的驅(qū)動基于STM32標(biāo)準(zhǔn)外設(shè)庫編寫,各模塊的通信傳輸均利用DMA實現(xiàn)快速處理。傳感器包括激光空氣粉塵傳感器和可定量測量甲醛濃度的電化學(xué)傳感器,以及數(shù)字溫濕度傳感器、小型氣壓傳感器等。傳輸層設(shè)計了將室內(nèi)空氣質(zhì)量檢測系統(tǒng)的感知層數(shù)據(jù)接入QQ物聯(lián)云平臺,并引入了事件隊列狀態(tài)機的處理方法,保證系統(tǒng)的響應(yīng)及時性。應(yīng)用層完成了對手機終端的“手機QQ”APP內(nèi)嵌的控制頁面的應(yīng)用設(shè)計,利用用戶基礎(chǔ)好的手機QQ作為前端載體,使檢測設(shè)備成為一個“QQ好友”;手機終端可以與像訪問QQ好友一樣可隨時對空氣數(shù)據(jù)進(jìn)行遠(yuǎn)程查看,空氣質(zhì)量信息也可通過QQ賬戶體系、好友關(guān)系實現(xiàn)快速分享,加強了用戶與設(shè)備之間的聯(lián)動,最終實現(xiàn)了將嵌入式空氣檢測設(shè)備變成QQ的一個智能設(shè)備的轉(zhuǎn)變。經(jīng)過與市面成熟的檢測系統(tǒng)對比,本系統(tǒng)測量數(shù)據(jù)準(zhǔn)確性高、成本低,功能豐富,便攜性好,使用門檻低,對提高生活品質(zhì)、預(yù)防由于空氣等方面帶來的疾病具有重要意義與商業(yè)價值。
[Abstract]:In recent years, with the economic development, industrial pollution, land desertification is becoming more and more serious, the problem of atmospheric particulate pollution has become more and more prominent, with the extensive application of composite household materials, the indoor air formaldehyde and benzene pollution can not be ignored. Air quality has attracted more and more attention. Outdoor ambient air quality information has been released. But the small environment around people and indoor air detection means are less, the detection price is also higher, the test results can not be connected to the Internet, can not be remote real-time monitoring, can not meet the needs of ordinary families for indoor and nearby air quality information timely access. In view of this situation, this paper designs and implements an air quality inspection system based on QQ platform. The system can be divided into three levels: perception, transmission and application. The sensor layer is designed based on all kinds of sensors to complete the data acquisition of the system. The hardware core processor adopts the STM32 microprocessor based on ARM Cortex-M3 kernel of Italy Semiconductor Company, and each sensor is connected directly to STM32. The driver of each sensor is based on the STM32 standard peripheral library, and the communication transmission of each module is realized by DMA. The sensors include laser air dust sensor, electrochemical sensor for quantitative measurement of formaldehyde concentration, digital temperature and humidity sensor, small pressure sensor and so on. In the transmission layer, the perceptual layer data of the indoor air quality detection system is connected to the QQ platform, and the event queue state machine is introduced to ensure the timely response of the system. The application layer has completed the application design of the "Mobile QQ" APP embedded control page of the mobile phone terminal, using the user-based Mobile QQ as the front-end carrier, making the detection equipment become a "QQ friend"; Mobile terminals can remotely view air data at any time like visiting QQ friends, air quality information can also be shared quickly through QQ account system, and the linkage between users and devices is strengthened. The final realization of the embedded air detection device into QQ a smart device transformation. Compared with the mature detection system, this system has high accuracy, low cost, rich function, good portability, low threshold of use, and can improve the quality of life. Prevention of diseases caused by air is of great significance and commercial value.
【學(xué)位授予單位】：長安大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：X51;X84

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