本文關(guān)鍵詞：基于藍(lán)牙4.0的無線傳感器通用接口研究與實現(xiàn)　出處：《東華大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

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【摘要】：物聯(lián)網(wǎng)(Internet of Things,Io T)是信息領(lǐng)域里一次重大的發(fā)展和變革機遇。物聯(lián)網(wǎng)的應(yīng)用為社會發(fā)展做出了極大貢獻(xiàn),是各個產(chǎn)業(yè)向現(xiàn)代化轉(zhuǎn)變的重要契機。隨著傳感器技術(shù)、通信技術(shù)與云計算的快速發(fā)展,無線傳感器網(wǎng)絡(luò)(Wireless Sensor Network,WSN)在軍事應(yīng)用、農(nóng)業(yè)生產(chǎn)、醫(yī)療檢測、智慧城市等領(lǐng)域有著十分廣闊的應(yīng)用前景。WSN的快速發(fā)展,對位于感知層的傳感器的開放性和互操作性提出了越來越高的要求。目前,WSN中的傳感器沒有統(tǒng)一接口,輸出信號的類型多樣,數(shù)據(jù)格式與交互協(xié)議不盡相同,導(dǎo)致了來自不同廠商的傳感器互不兼容,系統(tǒng)擴展與維護(hù)十分困難。因此,對WSN中傳感器的接口進(jìn)行統(tǒng)一的標(biāo)準(zhǔn)化設(shè)計具有十分重要的意義。本文主要就WSN節(jié)點的傳感器信號處理、數(shù)據(jù)傳輸兩方面展開討論,提出了一種基于低功耗藍(lán)牙技術(shù)設(shè)計無線傳感器通用接口(Universal Sensor Interface,USI)的方案,該方案可實現(xiàn)傳感器即插即用、環(huán)境信息采集、數(shù)據(jù)無線傳輸與顯示功能,主要研究內(nèi)容如下:(1)提出基于藍(lán)牙4.0的接口設(shè)計方案。結(jié)合物聯(lián)網(wǎng)與WSN快速發(fā)展的時代背景,分析國內(nèi)外在USI方面的研究現(xiàn)狀、存在的問題;分析USI設(shè)計的關(guān)鍵問題,包括信號接口標(biāo)準(zhǔn)化、供電方式設(shè)計、傳輸技術(shù)選擇;對比分析3種常見的無線傳輸技術(shù)Zig Bee、Wi-Fi、Bluetooth之后,提出基于藍(lán)牙4.0的接口設(shè)計方案。(2)基于n RF51822 EK的接口硬件設(shè)計。采用模塊化的方式,分別設(shè)計電流、電壓、開關(guān)量與串口信號處理的電路,后續(xù)可做進(jìn)一步的功能擴展,增加I2C、SPI、USB等電路。(3)根據(jù)本文提出的接口設(shè)計方案,編寫軟件實現(xiàn)通用接口與Android手機之間的無線通信。設(shè)計通用接口與Android手機之間的通信協(xié)議;使用C語言編寫接口底層代碼,Java與XML語言開發(fā)Android手機側(cè)應(yīng)用程序,完成交互界面、采樣通道選擇、接口參數(shù)設(shè)定等功能,并對B-USI進(jìn)行測試。針對論文的研究內(nèi)容,探討了課題中可優(yōu)化的方面,包括接口電路的功能擴展、網(wǎng)絡(luò)拓?fù)浣Y(jié)構(gòu)優(yōu)化與協(xié)議的升級、傳感器數(shù)據(jù)的云計算分析,并就此得出下一步的研究方向。
[Abstract]:The Internet of things (Internet of Things, Io T) in the field of information is a major change and development opportunities. The application of the Internet of things and made great contribution to the social development, is an important opportunity for various industries to modern transformation. With the development of sensor technology, communication technology and the rapid development of cloud computing, wireless sensor network (Wireless Sensor Network, WSN) in military applications, agricultural production, medical testing, smart city and other areas with the rapid development of.WSN application is very broad, openness and interoperability is put forward higher requirements on the sensor is located in the sensing layer. At present, the sensor in the WSN does not have a unified interface, output type signal diversity, data format and communication protocol are not the same, leads to the sensor from different manufacturers are not compatible, system expansion and maintenance is difficult. Therefore, the WSN sensor interface Has a very important significance of standardized design. In this paper, a unified sensor signal processing of WSN nodes, discuss the two aspects of data transmission, this paper puts forward a design of low power wireless sensor interface based on Bluetooth Technology (Universal Sensor Interface, USI) scheme, the scheme can realize the sensor plug, environmental information data acquisition, wireless transmission and display function, the main research contents are as follows: (1) the interface design of Bluetooth Based on 4. With the rapid development of networking and WSN background, analysis of the research status at home and abroad USI, existing problems; analysis of the key problems in USI design, including signal standard interface, power supply design, selection of transmission technology; after the comparative analysis of 3 kinds of common wireless technology Zig Bee, Wi-Fi, Bluetooth, the interface design based on Bluetooth 4. (2) based on N R The hardware design of interface F51822 EK. Modular way, design current, voltage, switch and serial signal processing circuit, the follow-up to do further extensions, increase I2C, SPI, USB etc. (3) according to the interface circuit. This paper presents a design scheme of wireless communication between the interface and preparation of Android mobile phone the software design of communication protocol between Android and mobile phone interface; interface code written using C language, Java language and XML development of Android mobile phone side application program, complete interface, sampling channel selection, parameter setting interface and other functions, and test the B-USI. According to the research contents of this paper, discusses the optimization the subject, including the interface circuit function expansion, topology optimization and network upgrade, the calculation and analysis of sensor data in the cloud, and get the next research direction.

【學(xué)位授予單位】：東華大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TP212.9;TN92

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