選源盤 的英文怎麼說
中文拼音 [xuǎnyuánpán]
選源盤
英文
source-selector disk-
According to the request of this subject, we have developed the system hardware and software for the slave device and the inspection software running on the pc. in this paper all of the followings is illustrated detailedly, such as the research on the principles of measurement and its realization, three means of water - level measurement that are separately based on photo electricity coder, pressure sensor and potentiometer ; selection of the microchip, we choose an advanced integrated soc ( system on chip ) microchip c8051f021 as the main controller ; realization of signal sampling, processing and its conversion in the mcu ; application of high precision 16 bits adc cmos chip - - ad7705 in our system, designing its interface with the microchip and relevant program ; using a trickle charge timekeeping chip ds1302 in the system which can provide time norm and designing of its i / o interface and program ; additionally, a 4 ~ 20ma current output channel to provide system check - up using ad421. in the system, ad421, ad7705 and the microchip compose spi bus ; to communicate with the master pc, here we use two ways which are separately rs232 and rs485 ; moreover, there are alarm unit, keyboard unit, power supply inspection unit and voltage norm providing unit in the system
針對研製任務的要求，課題期間研製了下位機系統硬體和軟體，開發了上位機監控軟體，其中所作的具體工作包括：測量原理的研究和在系統中的實現，在本次設計中用三種方法來進行水位測量，分別是旋轉編碼器法、液位壓力傳感器法和可變電阻器法；主控晶元的選擇，我們選用了高集成度的混合信號系統級晶元c8051f021 ；實現了信號的採集和處理，包括信號的轉換和在單片機內的運算；高集成度16位模數轉換晶元ad7705在系統中的應用，我們完成了它與單片機的介面設計及程序編制任務；精確時鐘晶元ds1302在系統中的應用，在此，我們實現了用單片機的i o口與ds1302的連接和在軟體中對時序的模擬，該晶元的應用給整臺儀器提供了時間基準，方便了儀器的使用；另外，針對研製任務的要求，還給系統加上了一路4 20ma模擬信號電流環的輸出電路來提供系統監測，該部分的實現是通過採用ad421晶元來完成的，本設計中完成了ad421與單片機的spi介面任務，協調了它與ad7705晶元和單片機共同構成的spi總線系統的關系，並完成了程序設計；與上位機的通信介面設計，該部分通過兩種方法實現： rs232通信方式和rs485通信方式；系統設計方面還包括報警電路設計、操作鍵盤設計、電源監控電路設計、電壓基準電路的設計。The capability for two optical drives, two disk drives and a full atx power supply it can deliver the power you require for your htpc system
對于這兩種有選擇性的驅動器的性能:兩個驅動硬盤和一個完整電源，對于htpc系統，它能按你要求傳送電源。This paper comes from the cloud platform controlling board, which is a part of hd _ vcr video monitoring system
本論文選題來源於「數字式硬盤錄像機視頻監控系統」項目中雲臺控制以及攝像鏡頭控制的功能塊。Once the data set is defined, you have the option of including the data set object instance in your component tray for rapid data source mapping to form controls in your forms designer
一旦定義了數據集，您就可以選擇在組件托盤上包含該數據集對象實例，用以將數據源快速映射到窗體設計器中的窗體控制。Hence the system can theoretically support unlimited number of users at one time. on the other hand, since each stream is shared by numerous users, it ' s difficult to provide sufficient interaction to make the users much satisfied. as a result, we can see that these two kinds of systems are complementary to each other
組播方式中，所有觀看同一節目流的用戶共享服務器資源，由智能的網路交換系統提供分發，用戶只能象選擇電視頻道的方式更換節目，而沒有象看錄像機光盤節目所具有的快進搜索方面的功能。This paper discusses and analyses the keys of cataloging network resources and optical disc resources, which including the selection of sources of information, the judgment of resources type, the description of related note fields, the use of 856 field of network resources and the physical description of optical disc resources
摘要探討、分析了圖書館網路資源與光盤資源的編目要點，包括：著錄信息源的選取、資源類型的判斷、相關附註欄位的著錄、網路資源的856欄位（電子資源定位與檢索）和光盤資源的載體形態項欄位的著錄。分享友人