本文選題：嵌入式系統 + 溫度傳感器　； 參考：《吉林大學》2017年碩士論文

【摘要】：隨著傳感器技術的不斷成熟,傳感器呈現出精度高成本低的特點,與此同時,互聯網技術也在迅速發展,正在不斷為我們的生活生產服務。傳感器技術與網絡技術結合形成了物聯網技術。物聯網技術應用于日常生活和工農業生產中已經成為一種發展趨勢,并且已經有了一定的發展基礎和成功的案例。本文從當前傳感器、嵌入式等相關技術的發展情況出發,介紹了基于無線網絡的嵌入式大規模溫度采集系統的研究背景,以及開發本系統的現實意義。同時對系統采用的核心技術在國內和國外的發展情況進行了簡要分析,分析內容包括嵌入式技術、傳感器技術等硬件相關的核心技術,也包括嵌入式軟件、嵌入式數據庫以及B/S模式等軟件相關的技術。然后基于技術、功能和需求對系統進行了分析。文章對系統從功能角度進行了整體設計,包括硬件設計,軟件框架設計,數據庫設計以及相關業務流程的設計。最后根據系統設計對相關功能進行了實現,并對各個功能進行了驗證和測試,保證并證實了系統的可行性和實用價值。基于無線網絡的嵌入式大規模溫度采集系統是將適用于不同需求場景的溫度傳感器同傳統無線網絡相結合,形成的一個集采集、存儲及管理等功能于一身的系統。溫度傳感器結合低端嵌入式芯片構成系統的采集部分,具備數據采集功能,完成對現場數據的采集任務;高性能的嵌入式芯片配合數據庫等軟件組件構成系統的數據存儲部分,具備數據接收、存儲和權限管理等功能,完成系統對設備的甄別與數據管理等任務。系統能夠承受大規模的采集需求,大規模主要體現在采集空間分布范圍和采集點數量上,由于系統采用無線網絡作為數據傳輸方式,所以系統的采集空間分布范圍廣,打破了傳統的布線限制。同時系統的數據接收與存儲部分采用高性能的芯片,能夠承受多達5000個點的采集規模。采集系統的數據存儲管理部分采用關系型數據庫,對外提供標準的接口,具有很好的兼容性,方便與其他應用程序進行對接。系統采用基于時間的一次性密碼對設備的合法性進行驗證,有效地保證了系統的安全性。同時系統采用傳統的無線網絡,使部署和改變系統的拓撲結構更加容易。對于用戶訪問方式,本系統采用B/S設計模式,向用戶提供友好的訪問和管理界面,方便系統功能的擴展和二次開發。此外,系統基于權限對訪問者進行分類,保證系統在應用層上的功能和數據的安全。
[Abstract]:With the development of sensor technology, sensor has the characteristics of high precision and low cost. At the same time, Internet technology is developing rapidly and serving our daily life. Sensor technology and network technology combined to form the Internet of things technology. The application of Internet of things technology in daily life and industrial and agricultural production has become a trend of development, and has a certain development basis and successful cases. Based on the development of sensor and embedded technology, this paper introduces the research background of embedded large-scale temperature acquisition system based on wireless network, and the practical significance of developing this system. At the same time, the development of the core technology used in the system at home and abroad is briefly analyzed, including embedded technology, sensor technology and other hardware-related core technologies, as well as embedded software. Embedded database and software related technology such as B / S model. Then the system is analyzed based on technology, function and requirement. This paper designs the whole system from the point of view of function, including hardware design, software frame design, database design and related business process design. Finally, the related functions are implemented according to the system design, and each function is verified and tested, which ensures and verifies the feasibility and practical value of the system. The embedded large-scale temperature acquisition system based on wireless network is a system which combines the temperature sensor suitable for different needs with the traditional wireless network and integrates the functions of acquisition, storage and management. The temperature sensor combines the low-end embedded chip to form the collection part of the system, which has the function of data acquisition, completes the task of collecting the field data, and the high performance embedded chip with the database and other software components constitute the data storage part of the system. With data receiving, storage and authority management functions, complete the system to identify equipment and data management tasks. The system can bear the demand of large-scale acquisition, which is mainly reflected in the range of spatial distribution and the number of acquisition points. Because the system adopts wireless network as the mode of data transmission, the system has a wide range of spatial distribution of data acquisition. Break the traditional wiring limit. At the same time, the data receiving and storage part of the system uses high performance chip, which can support as many as 5000 points. The data storage and management part of the acquisition system adopts relational database and provides the standard interface to the outside world. It has good compatibility and convenient docking with other application programs. The system uses time-based one-time cipher to verify the legitimacy of the equipment, which effectively ensures the security of the system. At the same time, the system adopts traditional wireless network, which makes it easier to deploy and change the system topology. For the user access mode, the system adopts the B / S design pattern to provide users with friendly access and management interface, which is convenient for the system function expansion and secondary development. In addition, the system classifies visitors based on permissions to ensure the security of system functions and data on the application layer.
【學位授予單位】：吉林大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TP274.2

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