本文選題：車載信息系統(tǒng)　切入點(diǎn)：客戶端　出處：《吉林大學(xué)》2014年碩士論文

【摘要】：車聯(lián)網(wǎng)是汽車業(yè)和通信業(yè)以及信息業(yè)三大產(chǎn)業(yè)的混合。車聯(lián)網(wǎng)的發(fā)展必然會(huì)帶起一條產(chǎn)業(yè)鏈，為汽車電子帶來了更好的發(fā)展機(jī)會(huì)，也會(huì)給汽車行業(yè)帶來更多的投資，給整個(gè)行業(yè)帶來繁榮發(fā)展。 在這樣的背景下，開始了支持車聯(lián)網(wǎng)連接的車載信息服務(wù)系統(tǒng)項(xiàng)目的研究。本項(xiàng)目研究的車載信息服務(wù)系統(tǒng)所提供的服務(wù)包括：(1)中心導(dǎo)航和位置服務(wù)，實(shí)時(shí)接收GPS信息，在服務(wù)平臺(tái)端進(jìn)行路線規(guī)劃，下發(fā)運(yùn)行指令給車載信息終端。通過接收到的GPS信息和車輛周圍輔助信息實(shí)現(xiàn)高質(zhì)量定位服務(wù)。(2)客戶服務(wù)，通過移動(dòng)通訊可以為用戶提供的服務(wù)項(xiàng)目。(3)遠(yuǎn)程故障診斷，實(shí)時(shí)監(jiān)測(cè)車輛狀態(tài)，出現(xiàn)問題時(shí)及時(shí)通知司機(jī)，并通過通訊模塊將情況發(fā)送到維修站或檢測(cè)中心，由維修部門判斷故障原因，及時(shí)告知司機(jī)，并提供臨時(shí)處理意見。 車載信息系統(tǒng)的整體結(jié)構(gòu)可以分為三個(gè)部分：車載終端是汽車用戶與車載信息系統(tǒng)交互部分；客戶端是系統(tǒng)操作人員與車載信息系統(tǒng)交互的部分；服務(wù)器是客戶端與車載終端通信的中間橋梁，對(duì)兩端通信的數(shù)據(jù)進(jìn)行處理以及存儲(chǔ)。 客戶端與服務(wù)器端通過以太網(wǎng)建立Socket連接，根據(jù)客戶端與服務(wù)器端定義的自定義通信協(xié)議向服務(wù)器端發(fā)送數(shù)據(jù)，以及對(duì)存儲(chǔ)在服務(wù)器端數(shù)據(jù)庫(kù)中的數(shù)據(jù)進(jìn)行訪問，服務(wù)器端會(huì)對(duì)客戶端發(fā)送的請(qǐng)求進(jìn)行響應(yīng)，客戶端將響應(yīng)結(jié)果在界面上顯示給系統(tǒng)的操作人員，車載終端與服務(wù)器端則通過3G網(wǎng)絡(luò)進(jìn)行連接，車載終端會(huì)上傳一些數(shù)據(jù)信息至服務(wù)器端，如車輛的GPS定位信息，以及車載終端發(fā)送的請(qǐng)求服務(wù)等。對(duì)于車載終端發(fā)送的請(qǐng)求，會(huì)通過服務(wù)器這個(gè)中間橋梁處理后發(fā)送至客戶端，客戶端將對(duì)車載終端發(fā)送的請(qǐng)求進(jìn)行處理，將結(jié)果再通過服務(wù)器端發(fā)送至車載終端。 論文中對(duì)車載信息服務(wù)系統(tǒng)的功能和結(jié)構(gòu)進(jìn)行了介紹。對(duì)客戶端系統(tǒng)的設(shè)計(jì)過程進(jìn)行了詳細(xì)的描述。對(duì)客戶端部分進(jìn)行了需求分析，得到客戶端部分應(yīng)該具備的功能。之后對(duì)客戶端進(jìn)行了總體設(shè)計(jì)，對(duì)一些重要的模塊進(jìn)行了概述，以及對(duì)各個(gè)模塊的設(shè)計(jì)進(jìn)行了詳細(xì)描述。 使用Qt對(duì)客戶端進(jìn)行了詳細(xì)設(shè)計(jì)，定義各種結(jié)構(gòu)體，構(gòu)建程序的流程。對(duì)各個(gè)操作界面進(jìn)行了設(shè)計(jì)，就項(xiàng)目中的數(shù)據(jù)通信模塊、數(shù)據(jù)加密/解密模塊、協(xié)議模塊、路徑規(guī)劃模塊等進(jìn)行了詳細(xì)的描述與設(shè)計(jì)。數(shù)據(jù)通信模塊中建立Socket連接與服務(wù)器中的通信模塊進(jìn)行數(shù)據(jù)通信，在數(shù)據(jù)加密/解密模塊使用了DES算法對(duì)發(fā)送和接收的數(shù)據(jù)進(jìn)行加密解密，并給出了各個(gè)模塊中重要的代碼實(shí)現(xiàn)部分。 本文最后對(duì)本項(xiàng)目進(jìn)行了總結(jié)，本項(xiàng)目完成了預(yù)期的目標(biāo)，提供了需求分析中的核心服務(wù)。也有很多可以優(yōu)化和擴(kuò)展的地方。結(jié)合物聯(lián)網(wǎng)的概念，項(xiàng)目中對(duì)汽車零配件追蹤的功能進(jìn)行初步嘗試，隨著以后的發(fā)展，研究基于IPv6/EPC256的車載節(jié)點(diǎn)編碼技術(shù)，標(biāo)識(shí)車載節(jié)點(diǎn)和零部件的類型、位置、功能、生產(chǎn)環(huán)節(jié)等信息，使其更完善。 隨著科技的進(jìn)步和經(jīng)濟(jì)的發(fā)展，支持車聯(lián)網(wǎng)連接的車載信息服務(wù)系統(tǒng)中的擴(kuò)展需求的實(shí)現(xiàn)也指日可待。相信不久的將來支持車聯(lián)網(wǎng)連接的車載信息服務(wù)系統(tǒng)會(huì)成為汽車用戶不可缺少的服務(wù)平臺(tái)。
[Abstract]:Vehicle networking is a mix of the auto industry and communication industry and the three industries of information industry . The development of vehicle networking will bring an industrial chain , which will bring better development opportunities for the automobile industry , and will bring more investment to the automobile industry and bring prosperity and development to the whole industry .

The service includes : ( 1 ) central navigation and location service , real - time receiving GPS information , carrying out route planning at the service platform end , issuing the running instruction to the vehicle - mounted information terminal .

The whole structure of the vehicle - mounted information system can be divided into three parts : the vehicle - mounted terminal is an interactive part between the automobile user and the vehicle - mounted information system ;
the client is part of the interaction between the system operator and the vehicle - mounted information system ;
The server is an intermediate bridge between the client and the vehicle - mounted terminal , and processes and stores the data communicated at both ends .

and the server side sends some data information to the server end , such as the GPS positioning information of the vehicle and the request service sent by the vehicle - mounted terminal , the client sends the request sent by the vehicle - mounted terminal to the client , and the client sends the result to the vehicle - mounted terminal through the server side .

The function and structure of the vehicle information service system are introduced in this paper . The design process of the client system is described in detail . The client part is analyzed to get the function that the client part should have . After that , the client is designed , some important modules are summarized , and the design of each module is described in detail .

In the data communication module , the data communication module , the data encryption / decryption module , the protocol module and the path planning module are designed . The data communication module , the data encryption / decryption module , the protocol module and the path planning module are designed in detail . The data communication module uses the DES algorithm to encrypt and decrypt the transmitted and received data , and the important code realization part in each module is given .

In the end , this paper summarizes the project , and provides the core service in demand analysis . It also has many ways to optimize and expand . The concept of conjugate networking , the function of vehicle spare parts tracking in the project is preliminarily tried . With the development of the future , the information of the type , position , function and production link of the vehicle - mounted node and component is identified , so that it is more perfect .

With the development of science and technology and the development of economy , the realization of the expansion demand in the vehicle - mounted information service system supporting the vehicle - connected connection is also welcome . It is believed that the vehicle - mounted information service system which supports the vehicle - networking connection in the near future will become an indispensable service platform for automobile users .

【學(xué)位授予單位】：吉林大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TP311.52;TN929.5;TP391.44

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