發(fā)布時間：2018-05-24 15:52

  本文選題：條碼定位系統(tǒng) + 自動化控制��； 參考：《西南交通大學(xué)》2015年碩士論文

【摘要】：隨著全球化物流的迅猛發(fā)展,特別是我國集裝箱運(yùn)輸吞吐量的高速持續(xù)增長,傳統(tǒng)的人工操作集裝箱裝卸模式越來越難以滿足物流運(yùn)輸自動化的發(fā)展需要。針對集裝箱起重機(jī)裝卸過程中,需人工操作起重機(jī)使集裝箱吊具到達(dá)目標(biāo)集裝箱正上方這一最費時最耗力的難題。集裝箱起重機(jī)自動定位控制系統(tǒng)采用BPS(條碼定位系統(tǒng)),用條碼定位來代替人工肉眼定位,使這一過程完全自動化,實現(xiàn)了集裝箱起重機(jī)運(yùn)行的自動定位,大大提高了集裝箱裝卸效率。以集裝箱起重機(jī)自動定位控制系統(tǒng)為開發(fā)目標(biāo),首先分析了系統(tǒng)的功能需求,搭建了系統(tǒng)仿真實驗平臺,完成了系統(tǒng)的總體設(shè)計。然后依據(jù)位移條碼編碼理論,解析了定位條碼的設(shè)計制作步驟,完成了條碼定位系統(tǒng)在集裝箱仿真平臺上的安裝。最后應(yīng)用軟件Unity Pro XL編寫集裝箱起重機(jī)PLC控制程序。具體研究工作內(nèi)容如下：1、對不同類型的條碼,即一維條碼和二維條碼,分別分析其結(jié)構(gòu)組成、功能特點,并歸納了兩者之間的區(qū)別。結(jié)合集裝箱起重機(jī)大車、小車運(yùn)行定位的特點,選擇一維條碼作為定位條碼表現(xiàn)形式,并確定激光式掃描設(shè)備作為定位條碼識讀設(shè)備。2、依據(jù)集裝箱起重機(jī)自動定位控制系統(tǒng)的工作流程,解析集裝箱起重機(jī)自動定位控制系統(tǒng)的功能需求,并將系統(tǒng)劃分為：條碼定位系統(tǒng)、起重機(jī)自動控制系統(tǒng)和人機(jī)交互操作與實時監(jiān)控界面三部分,明確了各部分所實現(xiàn)功能。最后在上述基礎(chǔ)上構(gòu)建系統(tǒng)總體邏輯結(jié)構(gòu)。3、為降低系統(tǒng)開發(fā)實驗風(fēng)險,也為減少系統(tǒng)開發(fā)成本,以1：15的比例搭建了集裝箱起重機(jī)機(jī)械模型,作為自動定位控制系統(tǒng)開發(fā)的實驗平臺硬件基礎(chǔ)。集裝箱起重機(jī)機(jī)械模型各機(jī)械和電氣部件能如真實起重機(jī)一樣正常運(yùn)行,并能夠按照集裝箱吊運(yùn)工作原理和流程吊裝模型集裝箱。4、在條碼定位系統(tǒng)開發(fā)過程中,依據(jù)位移條碼編碼理論,對起重機(jī)大、小車位置信息進(jìn)行信源編碼和信道編碼。選定Code39碼作為定位系統(tǒng)條碼轉(zhuǎn)換碼制,對照Code39碼的字符編碼表,運(yùn)用軟件Visual Basic編程將表示起重機(jī)大、小車位置信息的數(shù)字編碼值轉(zhuǎn)換為對應(yīng)的Code39條形碼圖形。5、配置了以施耐德PLC為核心的集裝箱起重機(jī)自動定位控制系統(tǒng)的硬件基礎(chǔ),并設(shè)計了包括安全限位和安全啟動開關(guān)的起重機(jī)大車行走、小車行走和起升機(jī)構(gòu)的電機(jī)控制電路圖�；谄鹬貦C(jī)大、小車條碼定位系統(tǒng)的實時位置反饋定位,在Unity ProXL上用順序設(shè)計法,編寫PLC控制程序,并導(dǎo)入運(yùn)行調(diào)試,實現(xiàn)集裝箱起重機(jī)的自動控制。最后應(yīng)用WinCC軟件建立一套具有較強(qiáng)移植性的工控機(jī)控制系統(tǒng)界面,使集裝箱起重機(jī)自動定位控制系統(tǒng)具有較好的人機(jī)交互性。
[Abstract]:With the rapid development of global logistics, especially the rapid growth of container transportation throughput in China, the traditional manual handling mode of container handling becomes more and more difficult to meet the development needs of logistics transportation automation. In the course of loading and unloading of container crane, it is the most time-consuming and consuming problem that the crane should be operated manually to make the container crane reach the top of the target container. The automatic positioning control system of container crane adopts BPS (bar code positioning system) instead of manual eye positioning, which makes the process completely automatic and realizes the automatic positioning of container crane. The container handling efficiency is greatly improved. Taking the automatic positioning control system of container crane as the development goal, the functional requirements of the system are analyzed, and the system simulation experimental platform is built, and the overall design of the system is completed. Then, according to the theory of displacement bar code coding, the design and manufacture steps of the positioning bar code are analyzed, and the installation of the bar code positioning system on the container simulation platform is completed. Finally, the software Unity Pro XL is used to write the PLC control program of container crane. The main contents of this paper are as follows: 1: 1. The structure and functional characteristics of different types of bar codes, namely, one-dimensional bar codes and two-dimensional bar codes, are analyzed, and the differences between them are summarized. Combined with the characteristics of container crane trolley and trolley, one dimensional bar code is selected as the expression of positioning bar code. The laser scanning equipment is determined as the location barcode reading equipment. According to the working flow of the container crane automatic positioning control system, the functional requirements of the container crane automatic positioning control system are analyzed. The system is divided into three parts: barcode positioning system, crane automatic control system and man-machine interactive operation and real-time monitoring interface. Finally, the overall logical structure of the system. 3. In order to reduce the risk of system development experiment and to reduce the cost of system development, the mechanical model of container crane is built at 1:15. As the hardware base of the experimental platform for the development of automatic positioning control system. The mechanical model of container crane can operate normally as the real crane, and can hoist the model container. 4 according to the working principle and flow of container hoisting, in the course of the development of barcode positioning system, According to the theory of displacement barcode coding, the information of crane's big and small car's position is encoded by source code and channel code. The Code39 code is chosen as the barcode conversion code system of the positioning system. Compared with the character coding table of the Code39 code, the use of software Visual Basic programming will indicate that the crane is large. The digital coding value of the vehicle position information is converted to the corresponding Code39 bar code figure. 5. The hardware foundation of the automatic positioning control system of container crane based on Schneider PLC is provided. The motor control circuit diagram of the crane trolley, the trolley walking and the lifting mechanism including safety limit and safety start switch are designed. Based on the real-time position feedback positioning of large crane and small barcode positioning system, the PLC control program is written on Unity ProXL with sequential design method, and the automatic control of container crane is realized by introducing and debugging. Finally, a set of industrial computer control system interface with strong transplantability is established by using WinCC software, which makes the automatic positioning control system of container crane have better man-machine interaction.
【學(xué)位授予單位】：西南交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：U653.921

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本文編號：1929659