本文關(guān)鍵詞：基于OBD的車載遠(yuǎn)程數(shù)據(jù)終端的設(shè)計(jì)與開發(fā)　出處：《吉林大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： OBD CAN總線 GPS GPRS 車載終端

【摘要】：隨著經(jīng)濟(jì)發(fā)展和科技進(jìn)步,個(gè)人車輛的保有量快速增長,人們對于車輛的可靠性和安全性的要求也越來越高。面對如今越來越復(fù)雜的汽車設(shè)備和行駛環(huán)境,需要更好地了解汽車和監(jiān)控汽車,對車輛的信息進(jìn)行實(shí)時(shí)地掌控,才能養(yǎng)成良好的駕駛習(xí)慣也有助于車輛的維護(hù)。移動(dòng)互聯(lián)網(wǎng)發(fā)展的大潮給汽車行業(yè)帶來了前所未有的沖擊,使得汽車與移動(dòng)互聯(lián)網(wǎng)相結(jié)合的研究和應(yīng)用越來越多。很多應(yīng)用都是通過OBD(On-Board Diagnostics,車載診斷系統(tǒng))來與車輛進(jìn)行交互,再通過移動(dòng)互聯(lián)網(wǎng)進(jìn)行遠(yuǎn)程傳輸?shù)�。OBD系統(tǒng)是為了限制機(jī)動(dòng)車污染物的排放,明確要求車輛裝配的,它除了可以檢測車輛排放系統(tǒng)防止尾氣排放超標(biāo),還能進(jìn)行汽車故障檢測和獲取車輛的行駛信息。針對這種情況,本文設(shè)計(jì)了基于OBD的車載遠(yuǎn)程數(shù)據(jù)終端。在車輛上使用車載遠(yuǎn)程數(shù)據(jù)終端獲取車輛的行駛信息和位置信息,通過GPRS網(wǎng)絡(luò)將信息上傳到服務(wù)器,手機(jī)終端遠(yuǎn)程連接服務(wù)器并顯示信息。設(shè)計(jì)與開發(fā)包括車載遠(yuǎn)程數(shù)據(jù)終端的軟硬件設(shè)計(jì)和遠(yuǎn)程服務(wù)器的開發(fā),解決了車輛的行駛數(shù)據(jù)讀取、故障讀取、信息傳輸、數(shù)據(jù)存儲(chǔ)與顯示的問題。在車輛上使用采用STM32F103C8主控芯片的車載遠(yuǎn)程數(shù)據(jù)終端與OBD接口連接,通過收發(fā)CAN報(bào)文的方式與OBD系統(tǒng)通信,讀取車輛的行駛信息和一部分故障信息,在通信過程中主要遵循ISO15765故障診斷通信協(xié)議。主控芯片還對采用U-BLOX芯片的GPS模塊所發(fā)送的NMEA-0183協(xié)議信息進(jìn)行解析,得到實(shí)時(shí)位置的經(jīng)緯度信息。最后,把車輛信息和位置信息通過采用M35芯片的GPRS模塊發(fā)送到GSM網(wǎng)絡(luò),GSM運(yùn)營商網(wǎng)絡(luò)以TCP的方式與因特網(wǎng)連接,也就是說通過移動(dòng)網(wǎng)絡(luò)把數(shù)據(jù)發(fā)送到了遠(yuǎn)程服務(wù)器。在服務(wù)器端完成數(shù)據(jù)接收和數(shù)據(jù)存儲(chǔ)的功能。利用Socket通信接收車載遠(yuǎn)程數(shù)據(jù)終端發(fā)送的信息,與My SQL數(shù)據(jù)庫建立連接,并把收到的信息周期性存入數(shù)據(jù)庫中。使用帶有i OS系統(tǒng)的手機(jī)終端通過基于C的API與數(shù)據(jù)庫建立遠(yuǎn)程連接,遠(yuǎn)程獲取信息并進(jìn)行可視化,直觀地反映出車輛的實(shí)時(shí)信息。通過真車實(shí)驗(yàn)和模擬實(shí)驗(yàn)進(jìn)行驗(yàn)證,利用USBCAN-II與電腦連接,使用自帶的CANtest軟件模擬CAN報(bào)文的收發(fā),驗(yàn)證車載遠(yuǎn)程數(shù)據(jù)終端發(fā)送的查詢CAN報(bào)文是否遵循故障診斷通信協(xié)議。使用OBD模擬器模擬車輛的OBD系統(tǒng)中CAN報(bào)文的應(yīng)答,實(shí)驗(yàn)表明,車輛信息讀取正常,獲取的位置信息準(zhǔn)確,信息的傳輸可靠,可以實(shí)現(xiàn)對車輛的遠(yuǎn)程監(jiān)控和管理。至此,完成了車載遠(yuǎn)程數(shù)據(jù)終端的設(shè)計(jì)與開發(fā)。
[Abstract]:With the development of economy and the progress of science and technology, the quantity of personal vehicle is increasing rapidly, and the requirement of the reliability and safety of the vehicle is becoming higher and higher. In the face of the more and more complex automobile equipment and driving environment. There is a need for a better understanding of the vehicle and monitoring of the vehicle and for real-time control of the vehicle's information. Ability to develop good driving habits is also conducive to the maintenance of vehicles. The development of the mobile Internet has brought unprecedented impact to the automotive industry. It makes the research and application of the combination of automobile and mobile internet more and more. Many applications are through OBD(On-Board Diagnostics. OBD system, which interacts with the vehicle and transmits it remotely through the mobile Internet, is designed to limit the emission of vehicle pollutants and explicitly require vehicle assembly. It can not only detect the vehicle emission system to prevent the exhaust emissions from exceeding the standard, but also can carry out the vehicle fault detection and obtain the driving information of the vehicle. In this paper, the vehicle remote data terminal based on OBD is designed. The vehicle remote data terminal is used to obtain the vehicle driving information and position information on the vehicle, and the information is uploaded to the server through the GPRS network. The design and development of the mobile terminal includes the hardware and software design of the vehicle remote data terminal and the development of the remote server, which solves the vehicle driving data reading and fault reading. Information transmission, data storage and display problems. On the vehicle using STM32F103C8 master control chip vehicle remote data terminal and OBD interface connection. By sending and receiving CAN messages, we can communicate with the OBD system, and read the vehicle driving information and part of the fault information. In the process of communication, the communication protocol of ISO15765 fault diagnosis is mainly followed. The main control chip also analyzes the NMEA-0183 protocol information sent by the GPS module using U-BLOX chip. . Finally, the vehicle information and position information are sent to the GSM network through the GPRS module using M35 chip. The GSM operator network is connected to the Internet in the form of TCP. That is to say, the data is sent to the remote server through the mobile network. The functions of data receiving and data storage are completed in the server. The information sent by the remote data terminal is received by using Socket communication. Establish a connection with my SQL database and store the received information periodically in the database. The mobile phone terminal with I OS system is used to establish a remote connection to the database through C-based API. Remote access to information and visualization, directly reflect the real-time information of the vehicle, through real vehicle experiments and simulation experiments to verify, using USBCAN-II to connect to the computer. The CANtest software is used to simulate the sending and receiving of CAN messages. Verify whether the CAN message sent by the vehicle remote data terminal conforms to the fault diagnosis communication protocol. Use the OBD simulator to simulate the response of the CAN message in the OBD system of the vehicle, the experiment shows that. The vehicle information is read normally, the position information obtained is accurate, the information transmission is reliable, and the remote monitoring and management of the vehicle can be realized. So far, the design and development of the vehicle remote data terminal have been completed.
【學(xué)位授予單位】：吉林大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：U463.6;TP311.52

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本文編號(hào)：1400098