運(yùn)動(dòng)控制技術(shù)是機(jī)電一體化的核心部分,提高運(yùn)動(dòng)控制技術(shù)水平對(duì)于提高我國(guó)的機(jī)電一體化技術(shù)具有至關(guān)重要的作用。運(yùn)動(dòng)控制技術(shù)的發(fā)展是制造自動(dòng)化前進(jìn)的旋律,是推動(dòng)新的產(chǎn)業(yè)革命的關(guān)鍵技術(shù)。對(duì)于數(shù)控系統(tǒng)來(lái)說(shuō),最重要的是控制各個(gè)電機(jī)軸的運(yùn)動(dòng),這是運(yùn)動(dòng)控制器接收并依照數(shù)控裝置的指令來(lái)控制各個(gè)電機(jī)軸運(yùn)動(dòng)從而實(shí)現(xiàn)數(shù)控加工的,數(shù)據(jù)加工中的定位控制精度、速度調(diào)節(jié)的性能等重要指標(biāo)都與運(yùn)動(dòng)控制器直接相關(guān)。目前對(duì)數(shù)控系統(tǒng)的研究都集中在插入PC的NC控制器的研究上,而其核心部分就是對(duì)步進(jìn)、伺服電機(jī)進(jìn)行控制的運(yùn)動(dòng)控制卡的研究。對(duì)PC-NC來(lái)說(shuō),運(yùn)動(dòng)控制卡的性能很大程度上決定了整個(gè)數(shù)控系統(tǒng)的性能,而微電子和數(shù)字信號(hào)處理技術(shù)的發(fā)展及其應(yīng)用,使運(yùn)動(dòng)控制卡的性能得到了不斷改進(jìn),集成度和可靠性大大提高。 本課題通過(guò)對(duì)運(yùn)動(dòng)控制技術(shù)的深入研究,并針對(duì)國(guó)內(nèi)運(yùn)動(dòng)控制技術(shù)的研究起步較晚的現(xiàn)狀,結(jié)合當(dāng)前運(yùn)動(dòng)控制領(lǐng)域的具體需要,緊跟當(dāng)前運(yùn)動(dòng)控制技術(shù)研究的發(fā)展趨勢(shì),吸收了數(shù)控技術(shù)和相關(guān)運(yùn)動(dòng)控制技術(shù)的最新成果,提出了基于PCI和FPGA的方案,研制了一款比較新穎的、功能強(qiáng)大的、具有很大柔性的四軸多功能運(yùn)動(dòng)控制卡。 本課題的具體研究主要有以下幾方面: 首先,通過(guò)對(duì)運(yùn)動(dòng)控制卡及運(yùn)動(dòng)控制系統(tǒng)等行業(yè)現(xiàn)狀的全面調(diào)研,和對(duì)運(yùn)動(dòng)控制技術(shù)的深入學(xué)習(xí),在比較了幾種常用的運(yùn)動(dòng)控制方案的基礎(chǔ)上,提出了基于FPGA的運(yùn)動(dòng)控制設(shè)計(jì)方案,并規(guī)劃了板卡的總體設(shè)計(jì)。 其次,根據(jù)總體設(shè)計(jì),規(guī)劃了板卡的結(jié)構(gòu),詳細(xì)劃分并實(shí)現(xiàn)了FPGA各部分的功能;利用光電隔離原理設(shè)計(jì)了數(shù)字輸入/輸出電路。 再次,利用FPGA的資源實(shí)現(xiàn)了PCI從設(shè)備接口,達(dá)到跟控制卡通信的目的,針對(duì)運(yùn)動(dòng)控制中的一些具體問(wèn)題,如運(yùn)動(dòng)平穩(wěn)性、實(shí)時(shí)控制以及多軸聯(lián)動(dòng)等,在FPGA上設(shè)計(jì)了四軸運(yùn)動(dòng)控制電路,定義了各個(gè)寄存器的具體功能,設(shè)計(jì)了功能齊全的加/減速控制電路、變頻分配電路、倍頻分頻電路和三個(gè)功能各異的計(jì)數(shù)器電路等,自動(dòng)降速點(diǎn)運(yùn)動(dòng)、A/B相編碼器倍頻計(jì)數(shù)電路等特殊功能。最后,進(jìn)行了本運(yùn)動(dòng)控制卡的測(cè)試,從測(cè)試和應(yīng)用結(jié)果來(lái)看,該卡達(dá)到預(yù)期的要求。
上傳時(shí)間: 2013-07-27
上傳用戶:zgu489
8051 VARIOUS UTILITY FUNCTIONSUTIL_ADCAD - Add Acc to DPTR, sets CYUTIL_ADCBAD - Add B/A to DPTR, sets CYUTIL_SUBBAD
標(biāo)簽: FUNCTIONSUTIL_ADCAD DPTR CYUTIL_ADCBAD Add
上傳時(shí)間: 2013-11-25
上傳用戶:himbly
write code to read the PCI configuration information, there are two ways.
標(biāo)簽: configuration information write there
上傳時(shí)間: 2015-05-09
上傳用戶:chens000
b to b 模式 電子商務(wù)系統(tǒng) ,c# 開發(fā) , B/S結(jié)構(gòu)
標(biāo)簽: to 模式 電子商務(wù)系統(tǒng)
上傳時(shí)間: 2014-01-20
上傳用戶:hanli8870
PCI Hot-Plug Specification Revision 1.0 The primary objective of this specification is to enable higher availability of file and application servers by standardizing key aspects of the process of removing and installing PCI adapter cards while the system is running. Although these same principles can be applied to desktop and portable systems using PCI buses, the operations described here target server platforms.
標(biāo)簽: Specification specification objective Hot-Plug
上傳時(shí)間: 2013-12-09
上傳用戶:zyt
This project attempts to implement a Database using B+Tree. The project has developed a DATABASE SYSTEM with lesser memory consumption. Its API includes simple SQL Statements and the output is displayed on the screen. Certain applications for which several features of existing databases like concurrency control, transaction management, security features are not enabled. B+Trees can be used as an index for factor access to the data. Help facility is provided to know the syntax of SQL Statements.
標(biāo)簽: project implement developed Database
上傳時(shí)間: 2013-12-25
上傳用戶:semi1981
Bing is a point-to-point bandwidth measurement tool (hence the b ), based on ping. Bing determines the real (raw, as opposed to available or average) throughput on a link by measuring ICMP echo requests roundtrip times for different packet sizes for each end of the link
標(biāo)簽: Bing point-to-point measurement determines
上傳時(shí)間: 2015-09-15
上傳用戶:lgnf
If we have two individually sorted vectors "a" and "b" but they are not sorted with respect to each other and we want to merge them into vector "c" such that "c" is also a sorted vector. Then c=mergesorted(a,b) can be used.
標(biāo)簽: sorted individually respect vectors
上傳時(shí)間: 2015-09-23
上傳用戶:comua
BIOS emulator and interface to Realmode X86 Emulator Library Can emulate a PCI Graphic Controller VGA bios on a powerpc platform
標(biāo)簽: Controller interface emulator Realmode
上傳時(shí)間: 2015-11-02
上傳用戶:zjf3110
AHB to PCI Structure for FPGA/Asic Designer
標(biāo)簽: Structure Designer FPGA Asic
上傳時(shí)間: 2013-12-26
上傳用戶:壞壞的華仔
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