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浏览/检索结果: 共10条，第1-10条 帮助

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光电自准直仪图像传感器控制技术的研究 学位论文  OAI收割
北京: 中国科学院大学, 2018
作者:  杨子煜
  |  收藏  |  浏览/下载：29/0  |  提交时间：2018/06/01
多要素空间环境监测载荷数传模拟设备系统的设计与研制 学位论文  OAI收割
: 中国科学院国家空间科学中心, 2018
作者:  刘正发
  |  收藏  |  浏览/下载：33/0  |  提交时间：2018/10/25
一种航天型号软件RS422接口数据通信能力的测试装置 期刊论文  OAI收割
航天制造技术, 2017, 期号: 1, 页码: 60-64
作者:  李晓燕;  张恕明;  李玉敏;  翟景升
  |  收藏  |  浏览/下载：30/0  |  提交时间：2018/11/20
空气净化装置数字化调速控制系统设计 期刊论文  OAI收割
长春理工大学学报(自然科学版), 2014, 期号: 4, 页码: 146-148+152
作者:  张伟;  石宝松;  韩振伟;  刘剑
收藏  |  浏览/下载：77/0  |  提交时间：2015/04/17
硕士论文-电磁监测试验卫星数据管理电子学及测试系统初步研究 学位论文  OAI收割
硕士, 北京: 中国科学院大学, 2014
作者:  李默
收藏  |  浏览/下载：29/0  |  提交时间：2015/10/12
基于FPGA的电场信号采集与传输系统设计 学位论文  OAI收割
硕士: 中国科学院研究生院, 2012
刘洋
收藏  |  浏览/下载：29/0  |  提交时间：2014/07/03
A new approach to realize UART (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011, August 12, 2011 - August 14, 2011, Harbin, China
作者:  Wang Y.;  Wang Y.;  Wang Y.;  Wang Y.;  Wang Y.
收藏  |  浏览/下载：33/0  |  提交时间：2013/03/25
In order to connect DSP which has synchronous serial ports to the devices implementing asynchronous communications protocol  a method to implement UART communications based on programmable logic device is proposed in the paper. In the proposed method  the core function of UART is integrated in CPLD with VHDL. Firstly  UART data frame format and operational principle of UART were introduced after reviewing some methods to realize UART. The methods to implement UART transmitter  UART receiver and baudrate generator using VHDL were illustrated in detail. Then pre-simulation and synthesize of VHDL program were executed. Finally  the test with bit error rate was carried out on physical system. Experimental results indicate that 75 percent of the GLB are used by UART  and the bit error rate is less than 109. The experiment was implemented utilizing the RS-422 protocol and the baudrate is 62.5kb/s. The proposed method can satisfy the system requirements of high integration  stabilization  low bit error rate  strong anti-jamming and low cost. 2011 IEEE.  
Application of master-slave multi-communication system in pilotless airborne mapping equipment (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Instrumentation Science and Technology, September 15, 2009 - September 18, 2009, Shenyang, China
作者:  Chen J.;  Wang W.;  Wang W.;  Zhang Y.
收藏  |  浏览/下载：26/0  |  提交时间：2013/03/25
This paper presents a master-slave multi-communication system designed with several micro-controllers used as master and slave controllers to set signal the lamp to realize point-to-point communication through the RS422 interface. By describing a typical example of this system and the blue print of hardware and the flowchart of software  the reliable work of the system has been proved. The circuits of system are very simple and practical  and they can be used to realize all the functions of a pilotless airborne mapping equipment. It also has a strong anti-jamming capability due to its balanced transfer scheme with single transmitter and multiple receivers. It is very efficient in protecting the integrity and correctness of transmitted and received signals  avoiding the collision of signals through the bus  satisfying the communication among several micro-controllers in a single system and forming a special communication network. 2009 SPIE.  
残余气体分析仪的远距离控制 期刊论文  OAI收割
真空, 2008, 期号: 6, 页码: 54-56
作者:  肖琼;  薛纪钦;  彭晓华
收藏  |  浏览/下载：84/0  |  提交时间：2015/12/14
基于DSP控制的多外设接口及PCI总线接口研究 学位论文  OAI收割
硕士, 光电技术研究所: 中国科学院光电技术研究所, 2006
冉策方
收藏  |  浏览/下载：24/0  |  提交时间：2013/11/19