【正文】 后定稿，老師多次詢問我們設(shè)計進程中所遇到的難題，并及時為我指點迷津。再次，我要感謝那些曾經(jīng)教我們的老師們，是他們教會了這些知識和本領(lǐng)，才能在這次設(shè)計中得以運用。當然，我還要感謝寢室的兄弟們和其它同學，是他們在我完成論文的過程中給予我?guī)椭凸膭睿彩撬麄兣阄叶冗^了這四年最美好的生活。 現(xiàn)在我即將揮別自己的大學生活，萬千感慨上心頭，有對校園和同學戀戀不舍，更有對美好未來的憧憬。最后，再次感謝我的老師、同學和大學期間所有的朋友們，是你們?yōu)槲业拇髮W生活增光添色，讓它變得五彩斑駁，尤為難忘。真誠的說一聲：“謝謝你們！” 石家莊鐵道大學四方學院畢業(yè)設(shè)計 22 參考文獻 [1]毛宗源等，微機控制電梯 [M]，國防工業(yè)出版社出版， 1996 [2]李鼎培，當前電梯研制開發(fā)技術(shù)動態(tài) [J]，中國電梯， 1995 [3]梁延東主編。電梯控制技術(shù) [M]。中國建筑工業(yè)出版社， 1997 [4]張漢杰，王錫鐘編著?，F(xiàn)代電梯控制技術(shù) [M]。哈爾濱工業(yè)大學出版 社， 1996 [5]Kim C B， Kyoung A． seong， et a1． A fuuzzy aproach to elevator group control system． IEEE Trans Syst[D]． Man， Cybern．， 1995， 25 [6]SIEMENS公司編著，西門子 (中國 )有限公司譯 [Z]。 SIEMATIC S一 7 300可編程序控 制器硬件和安裝手冊。 2021年 5月 [7]SIEMENS公司編著，西門子 (中國 )有限公司譯 [Z]。 SIEMTIC STEP7 V5． 0系統(tǒng)手冊。 2021年 5月 [8]武自芳，虞鶴松著。微機控制系統(tǒng)及其應(yīng)用 [M]。西安交通大學出版社， 1998 [9]汪曉光，孫曉瑛等編著?？删幊炭刂破髟砑皯?yīng)用 (上／下冊 )[M]。機械工業(yè)出 版社， 2021 [10] 溫照方主編。 SIMATIC S7— 300可編程序控制器教程 [M]。北京理工大學出版社， 2021 石家莊鐵道大學四方學院畢業(yè)設(shè)計 I 附 錄 附錄 A 外文資料 Building Programmable Automation Controllers with LabVIEW FPGA Overview Programmable Automation Controllers (PACs) are gaining acceptance within the industrial control market as the ideal solution for applications that require highly integrated analog and digital I/O, floatingpoint processing, and seamless connectivity to multiple processing nodes. National Instruments offers a variety of PAC solutions powered by one mon software development environment, NI LabVIEW. With LabVIEW, you can build custom I/O interfaces for industrial applications using addon software, such as the NI LabVIEW FPGA Module. With the LabVIEW FPGA Module and reconfigurable I/O (RIO) hardware, National Instruments delivers an intuitive, accessible solution for incorporating the flexibility and customizability of FPGA technology into industrial PAC systems. You can define the logic embedded in FPGA chips across the family of RIO hardware targets without knowing lowlevel hardware description languages (HDLs) or boardlevel hardware design details, as well as quickly define hardware for ultrahighspeed control, customized timing and synchronization, lowlevel signal processing, and custom I/O with analog, digital, and counters within a single device. You also can integrate your custom NI RIO hardware with image acquisition and analysis, motion control, and industrial protocols, such as CAN and RS232, to rapidly prototype and implement a plete PAC system. Table of Contents Introduction NI RIO Hardware for PACs Building PACs with LabVIEW and the LabVIEW FPGA Module FPGA Development Flow 石家莊鐵道大學四方學院畢業(yè)設(shè)計 II Using NI SoftMotion to Create Custom Motion Controllers Applications Conclusion Introduction You can use graphical programming in LabVIEW and the LabVIEW FPGA Module to configure the FPGA (fieldprogrammable gate array) on NI RIO devices. RIO technology, the merging of LabVIEW graphical programming with FPGAs on NI RIO hardware, provides a flexible platform for creating sophisticated measurement and control systems that you could previously create only with customdesigned hardware. An FPGA is a chip that consists of many unconfigured logic gates. Unlike the fixed, vendordefined functionality of an ASIC (applicationspecific integrated circuit) chip, you can configure and reconfigure the logic on FPGAs for your specific application. FPGAs are used in applications where either the cost of developing and fabricating an ASIC is prohibitive, or the hardware must be reconfigured after being placed into service. The flexible, softwareprogrammable architecture of FPGAs offer benefits such as highperformance execution of custom algorithms, precise timing and synchronization, rapid decision making, and simultaneous execution of parallel tasks. Today, FPGAs appear in such devices as instruments, consumer electronics, automobiles, aircraft, copy machines, and applicationspecific puter hardware. While FPGAs are often used in industrial control products, FPGA functionality has not previously been made accessible to industrial control engineers. Defining FPGAs has historically required expertise using HDL programming or plex design tools used more by hardware design engineers than by control engineers. With the LabVIEW FPGA Module and NI RIO hardware, you now can use LabVIEW, a highlevel graphical development environment designed specifically for measurement and control applications, to create PACs that have the customization, flexibility, and highperformance of FPGAs. Because the LabVIEW FPGA Module configures custom circuitry in hardware, your system can process and generate synchronized analog and digital signals rapidly and deterministically. Figure 1 illustrates many of the NI RIO devices that you can configure using the LabVIEW FPGA Module. NI RIO Hardware for PACs Historically, programming FPGAs has been limited to engineers who have indepth 石家莊鐵道大學四方學院畢業(yè)設(shè)計 III knowledge of VHDL or other lowlevel design tools, which require overing a very steep learning curve. With the LabVIEW FPGA Module, NI has opened FPGA technology to a broader set of engineers who can now define FPGA logic using LabVIEW graphical development. Measurement and control engineers can focus primarily on their test and control application, where their expertise lies, rather than the lowlevel semantics of transferring logic into the cells of the chip. The LabVIEW FPGA Module model works because of the tight integration between the LabVIEW FPGA Module and the mercial offtheshelf (COTS) hardware architecture of the FPGA and surrounding I/O ponents. National Instruments PACs provide modular, offtheshelf platforms for your industrial control applications. With the implementation of RIO technology on PCI, PXI, and Compact Vision System platforms and the introduction of RIObased CompactRIO, engineers now have the ben