rotary adj. 旋轉(zhuǎn)的,輪轉(zhuǎn)的。 a rotary press [machine] 輪轉(zhuǎn)印刷機。 a rotary fan 扇[吹]風(fēng)機。 the R- Club 扶輪社〔“扶輪國際”(R- International) 的舊稱;現(xiàn)指“扶輪國際”的各地分社〕。 rotary Cultivator 【農(nóng)業(yè)】旋(轉(zhuǎn)中)耕機。 n. 1.輪轉(zhuǎn)(印刷)機。 2.環(huán)行交叉路。 3.〔the R-〕“扶輪國際”。
Now , with the rapid development of computer and electronics , there have been a great progress in the field of input / output device technology . among this field , pci has been a current standard interface of pc . and in order to accommodate the development of operating system , wdm has been a driver model adopted by industry generally . at the same time , in the respect of sensor ’ s application , a high precision and high integrated incremental rotary encoder has been an outstanding one among the displacement sensors . meanwhile , eda technology and cpld / fpga chip applied in the signal processing circuit are approved by a great number of engineers who are engaged in designing the electronic device 目前,隨著計算機技術(shù)和電子技術(shù)的飛速發(fā)展, i / o設(shè)備接口控制技術(shù)領(lǐng)域有了長足進(jìn)步。其中, pci接口成為主流的微機標(biāo)準(zhǔn)接口,而與操作系統(tǒng)平臺的發(fā)展相適應(yīng), wdm已成為業(yè)界普遍采用的驅(qū)動程序模式;同時,在傳感器應(yīng)用方面,高精度、高集成的增量式旋轉(zhuǎn)編碼器已是位移型傳感器中的佼佼者,而eda技術(shù)和cpld / fpga器件在信號處理電路中的應(yīng)用被廣大電子設(shè)計人員所認(rèn)可。
Although there have been many application instances in the field of input / output device technology , we need an specific project and technology route aimed at an given application . in this thesis , we combine the introduction and analysis of relative technology to describe the accomplishment of a coordinate collecting device which is based on incremental rotary encoder . this device is an specific device applied to collect the corrdinate displacement of ground image ’ s three - dimensional model created by full digital photogrammetric station . cpld chip and vhdl are applied in this device to carry out the following work : phase control of the electrical pulse created by incremental rotary encoder , counting the number of electrical pulse , controling the state of signal processing circuit , exchanging data between this circuit and pci control 本文結(jié)合相關(guān)技術(shù)的介紹和分析,描述了一個基于增量式旋轉(zhuǎn)編碼器的坐標(biāo)參量采集接口卡的實現(xiàn),此接口卡是一種用于采集全數(shù)字?jǐn)z影測量系統(tǒng)地面影像模型坐標(biāo)位移量的專用設(shè)備,該設(shè)備采用cpld器件和vhdl語言實現(xiàn)增量式旋轉(zhuǎn)編碼器的脈沖信號鑒相和計數(shù)、信號處理部分的狀態(tài)控制以及和pci總線芯片ch365之間的數(shù)據(jù)交換和通信功能,同時該設(shè)備的驅(qū)動程序基于wdm模式,并且配置有結(jié)構(gòu)良好的動態(tài)鏈接庫程序作為系統(tǒng)軟件和驅(qū)動程序之間的數(shù)據(jù)和控制交互中間接口,能夠方便地運行在windows98 / 2000 / xp操作系統(tǒng)平臺上,具有實時性強、工作穩(wěn)定、通用性較好和性價比高等特點。