在航電系統維護過程中，為解決定位故障的效率和降低維修成本等問題，提出了基于ICD（Interface Control Document，接口控制文件）的1553B總線的信息監控系統模型。該系統運用數據采集卡對總線中傳輸的信號有無失真、偏差等電氣特性進行檢測，并使用1553B通訊卡通過測控軟件LabWindows/CVI編程與ICD數據庫的動態鏈接，實現總線信息的解析和故障的判斷。與傳統的維護過程相比，這種模型能夠從信號的電氣特性以及信息的解析等全方位的去檢測判斷故障的來源，并且能夠廣泛在其他1553B總線系統內擴展應用。驗證表明該監控系統可以對總線信息進行快速有效地監測分析，能滿足應用需求。 Abstract: In the process of avionics system maintenance， to solve the problems such as improving the efficiency of fast orientation to troubles and reducing maintenance cost， system of 1553B bus information monitor model based on ICD was proposed. The system observed whether the data which transmitted on the bus appear distortion and deviation by using data acquisition card. And using 1553B communication card programming of the measure software LabWindows/CVI and the dynamic linking of ICD database， message analysis and fault estimation could be realized. Compared with traditional maintenance， this model can all-dimensionally detect and analyze the source of faults from both electrical characteristics of the signal and message analysis， and it can be widely applied in the other 1553B system. Experiment shown that this monitor system can effectively detect and analyze the bus message and can meet the application requirements.
上傳時間： 2013-11-23
上傳用戶：18752787361
提出了一個由AT89C52單片機控制步進電機的實例。可以通過鍵盤輸入相關數據, 并根據需要, 實時對步進電機工作方式進行設置, 具有實時性和交互性的特點。該系統可應用于步進電機控制的大多數場合。實踐表明, 系統性能優于傳統的步進電機控制器。關鍵詞: 單片機; 步進電動機; 直流固態繼電器; 實時控制Con trol System of Stepp ingMotor Ba sed on AT89C52 ChipM icrocomputerMENGWu2sheng, L ILiang (College of Automatization, Northwestern Polytechnical Unversity, Xipan 710072, China)ABSTRACT: A stepp ing motor control system based on AT89C52 chip microcomputer was described.The data can be inputwith keyboard, and stepp ingmotorwas controlled by these data. According to the demand, users can set the workingmodel of stepp ingmotor in real2time. This system can be widely used in stepp ing motor controlling. The p ractice showed that the performance of this system outdid the tradi tional stepp ing motor controller.KEY WORDS: Chip microcomputer; Stepp ingmotor; DCSSR; Real2time control
標簽： Control System ingMot Stepp
上傳時間： 2013-11-19
上傳用戶：leesuper
IP核生成文件：（Xilinx/Altera 同） IP核生成器生成 ip 后有兩個文件對我們比較有用，假設生成了一個 asyn_fifo 的核，則asyn_fifo.veo 給出了例化該核方式（或者在 Edit－》Language Template-》COREGEN 中找到verilog/VHDL 的例化方式）。asyn_fifo.v 是該核的行為模型，主要調用了 xilinx 行為模型庫的模塊，仿真時該文件也要加入工程。（在 ISE中點中該核，在對應的 processes 窗口中運行“ View Verilog Functional Model ”即可查看該 .v 文件）。如下圖所示。
上傳時間： 2013-10-20
上傳用戶：lingfei
Integrated EMI/Thermal Design forSwitching Power SuppliesWei ZhangThesis submitted to the Faculty of theVirginia Polytechnic Institute and State Universityin partial fulfillment of the requirements for the degree of Integrated EMI/Thermal Design forSwitching Power SuppliesWei Zhang(ABSTRACT)This work presents the modeling and analysis of EMI and thermal performancefor switch power supply by using the CAD tools. The methodology and design guidelinesare developed.By using a boost PFC circuit as an example, an equivalent circuit model is builtfor EMI noise prediction and analysis. The parasitic elements of circuit layout andcomponents are extracted analytically or by using CAD tools. Based on the model, circuitlayout and magnetic component design are modified to minimize circuit EMI. EMI filtercan be designed at an early stage without prototype implementation.In the second part, thermal analyses are conducted for the circuit by using thesoftware Flotherm, which includes the mechanism of conduction, convection andradiation. Thermal models are built for the components. Thermal performance of thecircuit and the temperature profile of components are predicted. Improved thermalmanagement and winding arrangement are investigated to reduce temperature.In the third part, several circuit layouts and inductor design examples are checkedfrom both the EMI and thermal point of view. Insightful information is obtained.
上傳時間： 2013-11-16
上傳用戶：萍水相逢
IP核生成文件：（Xilinx/Altera 同） IP核生成器生成 ip 后有兩個文件對我們比較有用，假設生成了一個 asyn_fifo 的核，則asyn_fifo.veo 給出了例化該核方式（或者在 Edit－》Language Template-》COREGEN 中找到verilog/VHDL 的例化方式）。asyn_fifo.v 是該核的行為模型，主要調用了 xilinx 行為模型庫的模塊，仿真時該文件也要加入工程。（在 ISE中點中該核，在對應的 processes 窗口中運行“ View Verilog Functional Model ”即可查看該 .v 文件）。如下圖所示。
上傳時間： 2013-11-02
上傳用戶：誰偷了我的麥兜
Hopfield Model Autoassociative Memory 源碼, 經典的HOPFIELD人工神經網絡例子源碼
標簽： Autoassociative Hopfield HOPFIELD Memory
上傳時間： 2015-01-05
上傳用戶：皇族傳媒
Oxygen SMS ActiveX Control允許你發送接受文字及圖片消息，讀寫缺省的SMS中心號碼，獲得保存的信息總數和統計它們的位置，從SMS收件箱中讀取和刪除信息。可以獲得手機的IMEI，型號的軟件和硬件版本和日期，電池容量和信號強度。控件可以和任何支持Active X的編程環境相融合（如，ASP。Microsoft Visual Basic，Microsoft Visual C ，Microsoft Access，Borland Delphi，Borland C Builder等）。共享軟件。注冊版本將沒有提示屏幕，也不會在每次發送消息之前加一段文字。適用語言：CB3 CB4 CB5 D3 D4 D5 D6
標簽： ActiveX Control Oxygen SMS
上傳時間： 2015-01-05
上傳用戶：lxm
Oxygen SMS7110 ActiveX Control的操作系統為Windows 95 98 NT及2000，支持NOKIA 3***/62**/71**/8***系列的GSM手機。它允許你發送文本和圖片消息，讀寫缺省的SMS中心號碼。控件可以和任何支持Active X的編程環境相融合（如，ASP。Microsoft Visual Basic，Microsoft Visual C ，Microsoft Access，Borland Delphi，Borland C Builder等）。適用語言：CB3 CB4 CB5 D3 D4 D5
標簽： ActiveX Control Windows Oxygen
上傳時間： 2015-01-05
上傳用戶：it男一枚
BOrgTec GPSRS232 ActiveX Control提供如下特性：分析NMEA串，也就是說包含在NMEA序列里的數據將被提取出來。數據由ActiveX事件提供。NMEA序列從與PC串口連接的GPS接受器中獲得。可以配置串口的參數，以與多種GPS接受器進行通訊。配置ActiveX Control顯示數據的字體顏色和計量單位。這些特性使你在應用中加入GPS功能變得簡單。適用語言：D5
標簽： BOrgTec ActiveX Control GPSRS
上傳時間： 2015-01-05
上傳用戶：gxrui1991
I/O board control program for U.C.W./Sirael Dana robot.
標簽： control program Sirael board
上傳時間： 2015-01-11
上傳用戶：1427796291
