發(fā)布時(shí)間：2018-03-18 05:10

  本文選題：TPMS　切入點(diǎn)：Android　出處：《中國(guó)海洋大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著國(guó)民經(jīng)濟(jì)的快速發(fā)展,道路運(yùn)輸產(chǎn)業(yè)的規(guī)模得以快速提升,作為產(chǎn)業(yè)載體,汽車具有極其重要的地位,而面對(duì)越來越多的汽車,交通安全問題日益嚴(yán)峻。研究發(fā)現(xiàn),每年因輪胎事故造成的交通問題日益增多,特別是對(duì)于爆胎和漏氣造成的交通事故尤為嚴(yán)重,并且在發(fā)生爆胎事故時(shí),人們很難及時(shí)的去處理。隨著人們安全意識(shí)的不斷提升和有關(guān)法律法規(guī)的出臺(tái),人們對(duì)于TPMS的關(guān)注越來越多。TPMS,全稱Tire Pressure Monitoring System,即輪胎壓力監(jiān)測(cè)系統(tǒng),主要用于保障駕駛員的安全,對(duì)汽車輪胎壓力數(shù)據(jù)進(jìn)行實(shí)時(shí)監(jiān)測(cè),并會(huì)在輪胎氣壓發(fā)生異常時(shí)進(jìn)行報(bào)警和預(yù)警處理。目前TPMS研究主要分為直接式和間接式,其中直接式是依靠傳感器直接讀取輪胎氣壓數(shù)據(jù),間接式則是通過比較輪胎轉(zhuǎn)速進(jìn)行的輪胎氣壓估計(jì),但兩種方式都是為了得到實(shí)時(shí)的氣壓數(shù)據(jù),然后進(jìn)行監(jiān)控,以保障駕駛者的安全。本文所研究的直接式輪胎壓力監(jiān)測(cè)系統(tǒng),通過安裝在輪胎上的外置傳感器以及藍(lán)牙串口模塊將氣壓數(shù)據(jù)發(fā)送至Android智能手機(jī),并以移動(dòng)終端顯示的方式,對(duì)輪胎氣壓進(jìn)行實(shí)時(shí)監(jiān)測(cè)。由于傳感器讀取到的數(shù)據(jù)和實(shí)際輪胎氣壓計(jì)測(cè)量的數(shù)據(jù)存在一定的誤差,本文通過回歸分析法對(duì)傳感器進(jìn)行標(biāo)定,然后將模型應(yīng)用于終端系統(tǒng)。主要研究?jī)?nèi)容如下：首先,介紹了本文所使用的基礎(chǔ)理論,包括TPMS架構(gòu)和Android終端相關(guān)技術(shù),例如藍(lán)牙通信、極光推送、百度地圖以及輕量級(jí)數(shù)據(jù)庫(kù)技術(shù)等。其次,重點(diǎn)介紹了輪胎壓力監(jiān)測(cè)模塊的總體設(shè)計(jì)方案,包括移動(dòng)終端接收、解析、顯示輪胎氣壓數(shù)據(jù)的具體過程。解決了數(shù)據(jù)編碼、射頻模式、數(shù)據(jù)格式、藍(lán)牙通信以及傳感器ID匹配等問題,并且最終以友好的終端界面顯示實(shí)時(shí)的輪胎壓力信息。再次,以具體應(yīng)用環(huán)境為出發(fā)點(diǎn),利用線性回歸分析技術(shù),對(duì)實(shí)驗(yàn)中的壓力傳感器進(jìn)行標(biāo)定,得到一種線性數(shù)據(jù)模型,并把這種模型應(yīng)用到實(shí)際的終端系統(tǒng)中,充分保證終端系統(tǒng)顯示數(shù)據(jù)的準(zhǔn)確性,對(duì)道路運(yùn)輸安全起到至關(guān)重要的作用。還以實(shí)驗(yàn)的方式初步探究了輪胎載荷和壓力及形變量之間的相關(guān)關(guān)系。最后詳細(xì)設(shè)計(jì)了系統(tǒng)終端部分的整體架構(gòu)、功能模塊,闡述終端系統(tǒng)的各個(gè)子功能模塊中系統(tǒng)界面的設(shè)計(jì)和相應(yīng)功能的實(shí)現(xiàn)。通過本課題研究的TPMS,能夠?qū)��?shí)時(shí)的較為精確的輪胎壓力數(shù)據(jù)發(fā)送到智能終端,實(shí)現(xiàn)實(shí)時(shí)監(jiān)測(cè)功能,并且具有良好的用戶交互性,同時(shí)在車聯(lián)網(wǎng)方向具有一定的應(yīng)用價(jià)值。
[Abstract]:With the rapid development of national economy, the scale of road transportation industry has been rapidly promoted. As an industrial carrier, automobile has an extremely important position. In the face of more and more cars, the traffic safety problem is becoming more and more serious. Traffic problems caused by tyre accidents are increasing every year, especially for those caused by tyre explosions and air leaks, and in the event of tyre explosions, It is very difficult for people to deal with it in time. With the continuous improvement of people's safety awareness and the promulgation of relevant laws and regulations, people pay more and more attention to Tire Pressure Monitoring system, or Tire pressure Monitoring system, which is mainly used to ensure the safety of drivers. The data of tire pressure are monitored in real time, and alarm and early warning are carried out in case of abnormal tire pressure. At present, the research of TPMS is mainly divided into direct type and indirect type, in which the direct type is to read tire pressure data directly by the sensor. The indirect method is to estimate the tire pressure by comparing the tire speed, but both methods are to get the real time pressure data, and then monitor to ensure the safety of the driver. The direct tire pressure monitoring system is studied in this paper. The air pressure data is sent to the Android smart phone by the external sensor installed on the tire and the Bluetooth serial port module, and displayed by the mobile terminal. The tire pressure is monitored in real time. Because there are some errors between the data read by the sensor and the data measured by the actual tire barometer, the sensor is calibrated by regression analysis. Then the model is applied to the terminal system. The main research contents are as follows: firstly, the basic theory used in this paper is introduced, including TPMS architecture and Android terminal related technologies, such as Bluetooth communication, aurora push, etc. Baidu map and lightweight database technology. Secondly, the overall design scheme of tire pressure monitoring module is introduced, including mobile terminal receiving, parsing and displaying the tire pressure data. RF mode, data format, Bluetooth communication and sensor ID matching, and finally display real-time tire pressure information with friendly terminal interface. A linear data model is obtained by calibrating the pressure sensor in the experiment, and the model is applied to the actual terminal system to ensure the accuracy of the display data of the terminal system. It also explores the correlation between tire load and pressure and shape variables. Finally, the whole structure and function module of the terminal part of the system are designed in detail. This paper expounds the design of the system interface and the realization of the corresponding functions in each sub-function module of the terminal system. Through the TPMSs studied in this paper, the real-time accurate tire pressure data can be sent to the intelligent terminal, and the real-time monitoring function can be realized. And has good user interaction, at the same time in the vehicle networking direction has certain application value.
【學(xué)位授予單位】：中國(guó)海洋大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TP311.52

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