本文選題：電動拖拉機 + 遠(yuǎn)程監(jiān)控系統(tǒng)�。� 參考：《江蘇大學(xué)》2017年碩士論文

【摘要】：隨著“節(jié)能減排”這一主題不斷深入,農(nóng)業(yè)裝備科技創(chuàng)新政策不斷推出,電動拖拉機的研發(fā)逐漸成為相關(guān)企業(yè)和高校研究的重點。為優(yōu)化電動拖拉機整機性能、推動電動拖拉機的技術(shù)創(chuàng)新,研究人員必須對電動拖拉機運行參數(shù)和故障信息作及時了解和分析。因此,本文運用GPRS移動網(wǎng)絡(luò)、CAN總線、計算機網(wǎng)絡(luò)通信等技術(shù)開發(fā)出一套電動拖拉機遠(yuǎn)程監(jiān)控系統(tǒng),實現(xiàn)對電動拖拉機運行參數(shù)和故障信息的實時監(jiān)控顯示、保存、回放等功能。具體工作如下:(1)通過電動拖拉機監(jiān)控點和故障監(jiān)測的研究,分析了電動拖拉機遠(yuǎn)程監(jiān)控系統(tǒng)的需求,提出系統(tǒng)由系統(tǒng)終端和監(jiān)控中心兩部分構(gòu)成的總結(jié)構(gòu):系統(tǒng)選擇CAN總線實現(xiàn)系統(tǒng)終端與電動拖拉機的各個控制器通信,選擇GPRS網(wǎng)絡(luò)實現(xiàn)系統(tǒng)終端與監(jiān)控中心的無線通信功能。通過系統(tǒng)網(wǎng)絡(luò)架構(gòu)方式的研究,確定系統(tǒng)的Internet動態(tài)IP與DDNS網(wǎng)絡(luò)架構(gòu)方式。(2)選用內(nèi)置CAN控制器模塊的微控制器為系統(tǒng)終端主控制芯片,選用Sim900A為GPRS通信模塊,其硬件設(shè)計主要包括主控模塊和GPRS通信模塊的電路設(shè)計。在此基礎(chǔ)上,制定系統(tǒng)終端與監(jiān)控中心數(shù)據(jù)通信協(xié)議,編寫數(shù)據(jù)通信、上下線數(shù)據(jù)處理等模塊,實現(xiàn)數(shù)據(jù)在CAN總線和GPRS網(wǎng)絡(luò)之間傳輸?shù)墓δ?在數(shù)據(jù)處理模塊中,運用多個緩存機制,以及合理的網(wǎng)絡(luò)發(fā)送方式保證數(shù)據(jù)的高效傳輸。(3)基于面向?qū)ο�、模塊化和事件驅(qū)動的軟件設(shè)計思想,結(jié)合網(wǎng)絡(luò)編程、多線程、ADO.NET、數(shù)據(jù)庫、ProEssentials組件等技術(shù),對遠(yuǎn)程監(jiān)控中心軟件進行開發(fā);經(jīng)過用例分析、界面設(shè)計、網(wǎng)絡(luò)通信、數(shù)據(jù)庫、數(shù)據(jù)處理等模塊設(shè)計,實現(xiàn)實時監(jiān)控、故障監(jiān)測、歷史數(shù)據(jù)回放、故障管理、通信管理等功能。(4)開發(fā)網(wǎng)絡(luò)數(shù)據(jù)傳輸性能測試軟件,并制定網(wǎng)絡(luò)數(shù)據(jù)傳輸性能測試方案,根據(jù)網(wǎng)絡(luò)時延和丟包率兩個指標(biāo)分析網(wǎng)絡(luò)數(shù)據(jù)傳輸特性;此外,搭建系統(tǒng)功能測試平臺,對系統(tǒng)功能進行測試。結(jié)果表明:采用的GPRS通信方式以及網(wǎng)絡(luò)的架構(gòu)方式完全滿足系統(tǒng)數(shù)據(jù)傳輸需求;系統(tǒng)界面友好無假死現(xiàn)象,各個功能運行正常,達(dá)到預(yù)計要求。
[Abstract]:With the deepening of the theme of "energy saving and emission reduction" and the introduction of scientific and technological innovation policies for agricultural equipment, the research and development of electric tractors has gradually become the focus of research in related enterprises and universities. In order to optimize the performance of electric tractor and promote the technical innovation of electric tractor, researchers must know and analyze the running parameters and fault information of electric tractor in time. In this paper, a remote monitoring system of electric tractor is developed by using GPRS mobile network bus and computer network communication technology, which can display, save and playback the running parameters and fault information of electric tractor in real time. The specific work is as follows: (1) through the research of monitoring point and fault monitoring of electric tractor, the requirements of remote monitoring system of electric tractor are analyzed. The system consists of two parts: can bus is selected to realize the communication between the system terminal and each controller of electric tractor, and GPRS network is selected to realize the wireless communication function between the system terminal and the monitoring center. Through the research of the system network architecture, the dynamic IP and DDNS network architecture of the system are determined. (2) the microcontroller with the can controller module is selected as the main control chip of the system terminal, and the Sim900A is chosen as the GPRS communication module. The hardware design includes the circuit design of main control module and GPRS communication module. On this basis, the data communication protocol between the system terminal and the monitoring center is established, and the modules of data communication and data processing are compiled, so as to realize the function of data transmission between can bus and GPRS network, and in the data processing module, The efficient transmission of data is ensured by using multiple cache mechanisms and reasonable network transmission methods. (3) based on object-oriented, modularized and event-driven software design ideas, combined with network programming, multithreading ADO.NET and database prossentials, etc. Through the use case analysis, interface design, network communication, database, data processing module design, the realization of real-time monitoring, fault monitoring, historical data playback, fault management, the development of remote monitoring center software, use case analysis, interface design, network communication, database, data processing and other modules, (4) Development of network data transmission performance testing software, and development of network data transmission performance testing scheme, according to network delay and packet loss rate two indicators to analyze the network data transmission characteristics; Build the system function test platform and test the system function. The results show that the GPRS communication mode and the network architecture can fully meet the data transmission requirements of the system, the system interface is friendly and there is no false death phenomenon, and each function runs normally and meets the expected requirements.
【學(xué)位授予單位】：江蘇大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：S219.4

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