基于ARM圖像采集傳輸系統(tǒng)研究
發(fā)布時間:2018-04-27 20:28
本文選題:電解槽 + ARM; 參考:《北方工業(yè)大學》2017年碩士論文
【摘要】:由于電解槽內電流的分布不均,在電解的過程中粗銅析出的銅離子,會不規(guī)則的吸附在陰極板的薄片上,使兩個極板之間的直接接觸,造成短路故障,從而使大量電能損失和電解銅的品質下降。根據(jù)電解槽極板間短路溫度會上升的原理,利用高空巡檢小車搭載嵌入式ARM板,通過紅外攝像頭掃描電解槽槽面,利用紅外圖像處理技術監(jiān)測故障部位,它能更快更準確的檢測到發(fā)生故障的部位。本文采用ARM開發(fā)板和Linux操作系統(tǒng)為基礎平臺,選擇S3C2440A為核心處理器,根據(jù)具體的功能需求完成開發(fā)板的制作,通過移植操作系統(tǒng),實現(xiàn)對外接硬件設備的控制,完成軟硬件平臺搭建。電解故障位置監(jiān)測的依據(jù)是利用紅外圖像處理技術,系統(tǒng)需要具有圖像采集的功能,采集設備選用USB接口的紅外攝像頭,開發(fā)板集成USB接口,系統(tǒng)內核添加硬件設備的驅動,最后根據(jù)V4L2接口編寫圖像采集程序,實現(xiàn)圖像采集的功能。針對紅外圖像的處理是在上位機完成,所以在圖像采集之后,需要實現(xiàn)圖像的實時傳輸,本系統(tǒng)選用USB無線網(wǎng)卡以及DM9000網(wǎng)絡接口實現(xiàn)網(wǎng)絡傳輸,開發(fā)板擴展了 DM9000網(wǎng)絡接口,配置內核添加網(wǎng)卡的驅動,最后根據(jù)TCP/IP網(wǎng)絡傳輸協(xié)議,編寫圖像傳輸程序,實現(xiàn)圖像傳輸功能。因工作環(huán)境等因素的影響,網(wǎng)絡傳輸會受到干擾,出現(xiàn)圖像丟失的現(xiàn)象,本系統(tǒng)采用開發(fā)板外接SD卡存儲設備,在圖像采集傳輸?shù)耐瑫r實時的進行圖像的存儲,等小車到達指定的位置,再根據(jù)需求進行集中的傳輸,可以有效的解決圖片缺失情況。開發(fā)板集成SD卡的接口以及實現(xiàn)內核中驅動的開發(fā),最后編寫圖像存儲程序,實現(xiàn)圖像存儲功能;贏RM的圖像采集傳輸系統(tǒng),軟硬件開發(fā)方便,同時投入成本低。投入生產使用后,只需一人負責監(jiān)控即可,操作簡單,這樣就可以避免投入大量的人力,提高生產效率減少生產成本。另外能夠及時發(fā)現(xiàn)并處理故障情況,還可以為廠家減少大量的資源浪費。此種方法可以適用于不同的電解領域,為廠家提高生產效益,具有很實用的應用意義等。
[Abstract]:Due to the uneven distribution of current in the electrolysis cell, copper ions precipitated from coarse copper in the electrolysis process will be irregularly adsorbed on the thin plate of the cathode plate, which will make the direct contact between the two plates and cause the fault of short circuit. As a result, a large amount of electricity loss and the quality of electrolytic copper are reduced. According to the principle that the short-circuit temperature between the electrode plates of the electrolysis cell will rise, the embedded ARM board is carried on the high altitude inspection car, the surface of the electrolytic cell is scanned by infrared camera, and the fault position is monitored by infrared image processing technology. It can detect faults more quickly and accurately. This paper adopts the ARM development board and Linux operating system as the basic platform, selects S3C2440A as the core processor, completes the development board according to the specific function requirement, realizes the control of the external hardware device by transplanting the operating system. Complete the hardware and software platform. The basis of electrolysis fault position monitoring is to use infrared image processing technology, the system needs to have the function of image acquisition, the acquisition equipment uses the infrared camera of USB interface, the development board integrates USB interface, and the system kernel adds the driver of hardware equipment. Finally, the image acquisition program is compiled according to the V4L2 interface to realize the function of image acquisition. In view of the infrared image processing is completed in the upper computer, so after the image acquisition, we need to realize the real-time transmission of the image. This system uses USB wireless network card and DM9000 network interface to realize the network transmission, and the development board extends the DM9000 network interface. Configure the kernel to add the driver of the network card, finally according to the TCP/IP network transport protocol, write image transmission program, achieve image transmission function. Because of the influence of the working environment, the network transmission will be interfered, and the phenomenon of image loss will appear. The system adopts the SD card storage device, which is connected with the development board, to store the images in real time while collecting and transmitting the images. Wait for the car to reach the designated position, and then according to the needs of centralized transmission, can effectively solve the picture missing situation. The development board integrates the interface of SD card and realizes the development of driving in the kernel. Finally, the program of image storage is written to realize the function of image storage. The image acquisition and transmission system based on ARM has the advantages of convenient development of hardware and software, and low input cost. After put into production and use, only one person is responsible for monitoring, and the operation is simple, which can avoid putting in a lot of manpower and improve production efficiency and reduce production cost. In addition, it can detect and deal with the fault in time, and reduce the waste of resources for the manufacturers. This method can be used in different electrolytic fields and has practical application significance.
【學位授予單位】:北方工業(yè)大學
【學位級別】:碩士
【學位授予年份】:2017
【分類號】:TF811;TP316.81;TP274.2
【引證文獻】
相關期刊論文 前1條
1 馬莉;張t,
本文編號:1812198
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