發(fā)布時間：2018-04-03 22:41

  本文選題：RFID　切入點：WiFi　出處：《陜西科技大學(xué)》2017年碩士論文

【摘要】：工業(yè)作為國民經(jīng)濟(jì)發(fā)展的支柱,既是衡量一個國家綜合發(fā)展水平的尺度,又直接影響著人們的日常生活。工業(yè)現(xiàn)代化水平越高,社會發(fā)展速度也越快,人們的物質(zhì)生活會相對豐富、充實,所以世界各國都在努力發(fā)展工業(yè)以求帶動整個社會經(jīng)濟(jì)的發(fā)展。我國工業(yè)現(xiàn)代化建設(shè)經(jīng)過幾十年的發(fā)展,雖然已經(jīng)取得了巨大的成就,但相對于西方一些發(fā)達(dá)國家還存在一定的差距,特別是隨著工廠車間設(shè)備逐漸趨向于規(guī)模化、多樣化和復(fù)雜化等方向發(fā)展,對車間巡檢工作的信息化管理提出了更高的要求。針對當(dāng)前車間巡檢工作中出現(xiàn)的巡檢不到位、工作效率低、巡檢數(shù)據(jù)可靠性差、巡檢記錄信息易丟失及保管難度大等問題,本文圍繞基于RFID的巡檢定位系統(tǒng)展開研究工作,利用RFID技術(shù)、嵌入式技術(shù)及WiFi無線通信技術(shù)等現(xiàn)代化技術(shù)對巡檢人員實施定位,并對設(shè)備巡檢數(shù)據(jù)進(jìn)行記錄和管理,旨在提高設(shè)備巡檢工作效率,確保巡檢到位及巡檢數(shù)據(jù)的可靠性,以便于對巡檢數(shù)據(jù)實施統(tǒng)一管理。論文主要工作如下:(1)巡檢定位系統(tǒng)總體方案設(shè)計。通過對RFID、嵌入式系統(tǒng)和WiFi通信等相關(guān)技術(shù)的分析研究,對比分析了幾種常用的室內(nèi)定位技術(shù),考慮到應(yīng)用場景及環(huán)境因素,選擇RFID技術(shù)用于對巡檢人員進(jìn)行識別及定位;分析了RFID技術(shù)的工作原理并研究了射頻系統(tǒng)的數(shù)據(jù)調(diào)制過程。同時,結(jié)合RFID與WiFi技術(shù)的優(yōu)勢,搭建以RFID技術(shù)為核心、以WiFi網(wǎng)絡(luò)為數(shù)據(jù)傳輸媒介的巡檢定位系統(tǒng)整體架構(gòu)。(2)巡檢定位系統(tǒng)的硬件系統(tǒng)選型與設(shè)計。根據(jù)系統(tǒng)的實際需要,設(shè)計了UHF射頻讀寫器及手持終端,其射頻芯片選用奧地利微電子的高度集成超高頻RFID讀寫芯片AS3992,同時根據(jù)AS3992芯片的性能對所需的硬件設(shè)備進(jìn)行選型。在此基礎(chǔ)上,完成了控制模塊、人機交互模塊、數(shù)據(jù)采集模塊及WiFi通信模塊的芯片選擇,分析了相關(guān)電路的設(shè)計原理,并完成對應(yīng)的硬件電路設(shè)計及性能測試。(3)巡檢定位系統(tǒng)的軟件設(shè)計及上位機監(jiān)測平臺的設(shè)計。根據(jù)巡檢定位的實施過程,完成了對μC/OS-Ⅱ系統(tǒng)的移植,重點對定位功能模塊、液晶顯示模塊、數(shù)據(jù)采集模塊及數(shù)據(jù)傳輸模塊進(jìn)行了軟件設(shè)計。在上位機軟件設(shè)計方面,利用計算機編程語言Visual Basic對上位機監(jiān)測模塊進(jìn)行了軟件設(shè)計,實現(xiàn)了對巡檢人員的實時定位、設(shè)備巡檢數(shù)據(jù)存儲及考勤查詢等功能。(4)RFID室內(nèi)定位算法的研究。通過分析和研究RFID室內(nèi)定位算法,提出一種適用于車間巡檢的改進(jìn)RFID定位算法。該算法是在VIRE算法的基礎(chǔ)上結(jié)合非線性樣條插值法通過計算得出目標(biāo)位置。最后,利用MATLAB對算法進(jìn)行仿真,通過數(shù)據(jù)分析與總結(jié)證明該算法有效地解決了VIRE算法使用線性插值法帶來定位不準(zhǔn)的問題,提高了系統(tǒng)定位精度,能夠較好地滿足車間復(fù)雜環(huán)境下對巡檢人員的定位需要�；�于RFID的車間巡檢定位系統(tǒng)經(jīng)過調(diào)試與測試,系統(tǒng)可以準(zhǔn)確地實現(xiàn)對巡檢人員位置的實時定位、巡檢人員身份信息的識別、巡檢與定位數(shù)據(jù)的傳輸以及上位機與無線網(wǎng)絡(luò)的通訊等功能,為企業(yè)實時掌握設(shè)備運行狀態(tài)提供了保障,并提高了企業(yè)的信息化管理水平。
[Abstract]:As a pillar industry of national economic development, is a measure of a country's comprehensive development level of the scale, has a direct impact on people's daily life. The higher the level of industrial modernization, social development faster, people's material life will be relatively rich, full, so all over the world are striving to develop in order to promote the development of the industry the social and economic construction of China's industrial modernization. After decades of development, although has made great achievements, but there is still a gap compared with some western developed countries, especially with the factory workshop equipment gradually tends to large-scale, complex and diversified development, put forward higher requirements for information management the workshop inspection work. According to the current inspection workshop inspection work is not in place, low efficiency and poor reliability of inspection data, inspection record information easily lost Problems and difficulty keeping large, this paper is focused on the research work of inspection positioning system based on RFID, using RFID technology, modern embedded technology and WiFi wireless communication technology to implement localization of inspection personnel, and record and management of equipment inspection data, in order to improve the inspection efficiency of the equipment, ensure the reliability of inspection and inspection data the implementation of unified management, in order to facilitate the inspection data. The main works are as follows: (1) the design of inspection positioning system overall scheme. Based on RFID, research and analysis of embedded system and WiFi communication technology, comparative analysis of several commonly used indoor positioning technology, considering the application scenarios and environmental factors, select the RFID technology for identification and localization of inspection personnel; analyzes the working principle of RFID technology and data modulation process of the RF system. At the same time, the combination of RFID and W The advantages of iFi technology, based on RFID technology as the core, the overall structure of inspection positioning system based on WiFi network data transmission medium. (2) the selection and design of hardware system inspection and positioning system. According to the actual needs of the system, the design of UHF RF reader and a hand-held terminal, the radio chip Austria microelectronics height integrated UHF RFID reader chip AS3992, and according to the performance of AS3992 chip selection of hardware required. On this basis, the control module, human-computer interaction module, data acquisition module and WiFi communication module of the chip selection, analyzes the design principle of the circuit, and completes the hardware circuit design and performance test the corresponding. (3) design software design and PC monitoring platform inspection positioning system. According to the implementation of the inspection location, the completion of the C/OS- II system transplant, focusing on the set A function module, LCD module, data acquisition module and data transmission module of the software design. In the aspect of software design, Basic software design of PC monitoring module by using computer programming language Visual, realizes the real-time positioning of inspection personnel, equipment inspection attendance data storage and query. (4 study on RFID) indoor positioning algorithm. Through the analysis and research of RFID indoor location algorithm, this paper proposed an algorithm for improving RFID positioning for workshop inspection. The algorithm is based on the VIRE algorithm with the nonlinear spline interpolation method by calculating the position of the object. Finally, the algorithm is simulated by MATLAB, through data analysis and summary proves that the algorithm can effectively solve the VIRE algorithm using linear interpolation method has the problem of inaccuracy, improve the positioning accuracy of the system, which can better meet the car The positioning of the inspector between the complex environment needs. Based on the workshop inspection positioning system RFID through debugging and testing, the system can accurately realize the real-time positioning of the inspection staff position, identify the inspection personnel identity information, inspection and positioning data transmission and host computer and wireless network communication function, provide a guarantee for the the real-time grasp the operation status of equipment, and improve the level of enterprise information management.

【學(xué)位授予單位】：陜西科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TP391.44

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