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
本文結合相關技術的
介紹和分析,描述了一個基於增量式旋轉編碼器的坐標參量採集
介面卡的實現,
此介面卡是一種用於採集全數字攝影測量系統地面影像模型坐標位移量的專用設備,該設備採用cpld器件和vhdl語言實現增量式旋轉編碼器的脈沖信號鑒相和計數、信號處理部分的狀態控制以及和pci總線晶元ch365之間的數據交換和通信功能,同時該設備的驅動程序基於wdm模式,並且配置有結構良好的動態鏈接庫程序作為系統軟體和驅動程序之間的數據和控制交互中間
介面,能夠方便地運行在windows98 / 2000 / xp操作系統平臺上,具有實時性強、工作穩定、通用性較好和性價比高等特點。
Called on each server context property that has this interface, before the construction response leaves the server for the client
在構造響應離開服務器返回客戶端前,調用每個具有
此介面的服務器上下文屬性。
To indicate whether a list control contains a heading section, footer section, or separators, this interface defines the
為了指示列表控制項是否包含標題節、腳注部分或分隔符,
此介面分別定義
You can then refer to implementing objects as that interface type and call whatever methods exist on that interface
然後就可以按照
介面類型引用實作
此介面的物件,並呼叫這個
介面中存在的任何方法。
Using the distributedmap interface, which is a simple interface for the dynamic cache, j2ee applications and system components can cache and share java objects by storing a reference to the object in the cache
Distributedmap
介面是用於動態緩存的簡單
介面,使用
此介面,通過將引用存儲到緩存中的對象, j2ee應用程序和系統組件可以緩存和共享java對象。
Her ladyship, with great condescension, arose to receive them ; and as mrs. collins had settled it with her husband that the office of introduction should be her s, it was performed in a proper manner, without any of those apologies and thanks which he would have thought necessary
夫人極其謙和地站起身來迎接他們。根據柯林斯太太事先跟她丈夫商量好的辦法,當場由太太出面替賓主
介紹,因
此介紹得很得體,凡是柯林斯先生認為必不可少的那些道歉和感激的話,都一概免了。
By integrating once to chinapt. com, a supplier can offer its customers real - time pricing and availability information, as well as the ability to place and track orders. moreover, chinapt. com s unique " publish instant " supplier content model allows suppliers to publish or update their product content instantly in chinapt. com, instead of having to take time to customize that content for every buying organization and wait for endless response
沒有買賣雙方的成功,就談不上電子灣的成功。因
此,網上交易的信譽極為重要, "惠特曼就
此介紹說, "幾年來,我們創制了很多措施保證電子灣是一個安全的交易場所,其中最重要的是創造了一個買賣雙方互動式反饋系統。
Owing to dangerous scaffolding at 15 wang hoi road, a section of wang hoi road between lam fook street and wang tai road has been closed to traffic
由於宏開道十五號有危險棚架,因此介乎臨福街至宏泰道的一段宏開道將會暫時封閉。