本文選題：體積測量 + 散亂點插值�。� 參考：《西南交通大學》2017年碩士論文

【摘要】：隨著工業(yè)4.0時代的到來,智能化、自動化已成為助推工業(yè)發(fā)展再次騰飛的關(guān)鍵因素,由其是在水泥產(chǎn)業(yè)。預均化堆場作為分散及存儲水泥的倉庫,在水泥的生產(chǎn)過程中起著至關(guān)重要的作用,但由于預均化堆場內(nèi)物料流動性強,變化性大,并且工業(yè)環(huán)境惡劣,粉塵密布,其體積測量技術(shù)很難達到自動測量的程度。因此設(shè)計一套適用于預均化堆場內(nèi)物料體積自動測量系統(tǒng)顯得尤為關(guān)鍵,使其準確、快速、高效的完成物料體積測量結(jié)果與模擬三維成像圖的顯示。在預均化堆場物料體積自動測量系統(tǒng)中,將從點云數(shù)據(jù)采集子系統(tǒng)中采集到的數(shù)據(jù),包括激光測距儀采集到的距離信息、水平步進電機的距離信息、垂直步進電機的角度信息及軌道段位信息,通過ESP8266無線模塊發(fā)射端按照一定的通信規(guī)約傳輸至數(shù)據(jù)轉(zhuǎn)發(fā)及顯示子系統(tǒng),在子系統(tǒng)的ESP8266無線模塊接收端接收后,將其按照約定的通信協(xié)議由以太網(wǎng)傳輸?shù)竭h程服務(wù)器,并將其實時存入數(shù)據(jù)庫中,當點云原始數(shù)據(jù)采集完成后,調(diào)用三維空間坐標轉(zhuǎn)換公式對其進行處理,得到三維空間點云坐標集,再經(jīng)散亂點插值算法擬合出掃描的整個曲面,并得到相應(yīng)的模擬三維成像圖及物料的體積信息,隨之將其存入MySQL數(shù)據(jù)庫中,以方便企業(yè)員工進行查詢。論文主要完成了該系統(tǒng)的整體設(shè)計,在硬件方面實現(xiàn)了系統(tǒng)機械結(jié)構(gòu)設(shè)計、硬件電路組成模塊、芯片選擇、電路圖及PCB的設(shè)計;在軟件方面采用C語言編寫了點云數(shù)據(jù)采集子系統(tǒng)、水平電機驅(qū)動子系統(tǒng)、數(shù)據(jù)轉(zhuǎn)發(fā)及顯示子系統(tǒng)的程序,同時完成了系統(tǒng)通信協(xié)議設(shè)計、服務(wù)器程序設(shè)計、數(shù)據(jù)庫設(shè)計及客戶端軟件設(shè)計,并采用Linux系統(tǒng)實現(xiàn)了數(shù)據(jù)轉(zhuǎn)發(fā)端的數(shù)據(jù)庫訪問及界面顯示,采用Matlab完成了點云數(shù)據(jù)三維坐標的轉(zhuǎn)換及空間散亂點插值算法的仿真與研究。為系統(tǒng)搭建了測試平臺,進行功能測試,測試結(jié)果顯示,本系統(tǒng)實現(xiàn)了對物料堆表面信息的數(shù)據(jù)采集、傳輸、處理、存儲、查詢及系統(tǒng)控制等功能,在實驗室環(huán)境下該系統(tǒng)的準確性、穩(wěn)定性均能滿足水泥企業(yè)的生產(chǎn)需求。
[Abstract]:With the arrival of the industry 4.0 era, intelligence, automation has become the key factor to promote the development of industry, which is in the cement industry. The pre-homogenized yard, as a warehouse for dispersing and storing cement, plays an important role in the production of cement. However, due to the strong fluidity and variety of materials in the pre-homogenized yard, the industrial environment is bad and the dust is dense. Its volume measurement technology is difficult to reach the level of automatic measurement. So it is very important to design a set of automatic measurement system for material volume in pre-homogenized yard, which makes it accurate, fast and efficient to complete the results of material volume measurement and the display of simulated three-dimensional image. In the automatic measurement system of material volume in the pre-homogenized yard, the data collected from the point cloud data acquisition subsystem, including the distance information collected by the laser rangefinder and the distance information of the horizontal stepping motor, are included. The angle information and track segment information of vertical stepping motor are transmitted to the data forwarding and displaying subsystem according to a certain communication protocol at the transmitter of the ESP8266 wireless module. After receiving the information at the receiving end of the ESP8266 wireless module of the subsystem, It is transmitted from Ethernet to remote server according to the agreed communication protocol, and stored in the database in real time. When the original data collection of point cloud is finished, the coordinate transformation formula of 3D space is called to process it. The coordinate set of 3D point cloud is obtained, then the whole surface is fitted by scattered point interpolation algorithm, and the corresponding 3D imaging map and volume information of material are obtained, and then stored in the MySQL database. In order to facilitate the enterprise employees to query. The whole design of the system is mainly completed in this paper. In the aspect of hardware, the design of the mechanical structure of the system, the module of the hardware circuit, the chip selection, the circuit diagram and the design of PCB are realized. In the aspect of software, the program of point cloud data acquisition subsystem, horizontal motor driving subsystem, data forwarding and displaying subsystem is written in C language. At the same time, the system communication protocol design and server program design are completed. Database design and client software design, Linux system is used to realize database access and interface display of data forwarding terminal, and Matlab is used to complete the 3D coordinate transformation of point cloud data and the simulation and research of spatial scattered point interpolation algorithm. The test results show that the system realizes the functions of data acquisition, transmission, processing, storage, query and system control. In the laboratory environment, the accuracy and stability of the system can meet the production needs of cement enterprises.
【學位授予單位】：西南交通大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TP274

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