摘要：针对link 16的概念、特点,对其发展趋势进行了分析。根据link 16的组网特点设计了一种基于时分多址接入的组网方式。同时,利用目前公认的网络仿真软件OPNET对所设计的这种link 16的TDMA组网方式进行了建模与仿真。并通过有限状态机的方式,对建模和仿真中最关键的TDMA模块进行了分析说明。

摘要：On today＇s clothes market and international fashion stage, the dress adornment elements of ethnic minorities have always deeply impressed design masters, received great attention and, are constantly surprising fashion designers. China is a country with multiple ethnic minorities, which have extremely rich ethnic minority dresses and adornment elements. On studying the major dress adornment elements of the Daur, a typical ethnic minority in northern China, we have discovered their strong ethnic features. The major dress adornment elements of the Daur were with the purpose to explore and continue traditions. Combining the modern faskion design with the delicate decorative art that the Daur people sew various laces and embroideries on their dresses, was to discover and use the essence of Chinese ethnic dress and adornments, and demonstrate the talent of ethnic minorities in clothes design. Given what have been founded, combined with the application of modern design methods, the adornment elements of ethnic dresses can represent their ethnic characteristics as well as reflecting the sense of the modern age.

摘要：为了Camera link摄像机的小型化和集成化,设计并实现了基于FPGA的Camera link接口的编码输出功能。输出编码分为3个步骤:首先,完成图像像素数据到Camera link PORT的映射;其次,根据DS90CR287的数据编码要求对PORT数据和同步时钟信号进行编码;最后,通过FIFO和并串转换功能模块完成图像数据和时钟编码信号的LVDS信号输出。使用ModelSim软件,对像素时钟为40 MHz的BASE模式进行了仿真,同时在实物实验中,完成了像素时钟为40 MHz的FULL模式的实验,通过以上两方面实验验证了设计的Camera link输出编码方案的正确性和可行性。提出的编码方案稳定可靠,可以应用于不同模式下的Camera link编码输出,具有很高的灵活性和应用价值。

摘要：Line-of-sight (LOS) link planning condition has been observed to have effects on the atmospheric factor which cause crucial signal loss. The main objective of the planning was to improve a set of a link using point to point condition to assist the performance in emerging its strategy for handling the fixed WLAN service. The purpose of this paper is to provide a quick description of various propagation loss mechanisms on link Budget Tool (LBT). LBT is customized to create point to point link for local area network (LAN) through radio frequency range operating between 2.400 GHz and 5.800 GHz. This software is able to define the effect of signal loss and expected performances according to the distances between link propagation conditions based on a number of system parameters.

摘要：The design synthesis is the key issue in the mechanical conceptual design to generate the design candidates that meet the design *** paper devotes to propose a novel and computable synthesis approach of mechanisms based on graph theory and polynomial *** graph framework of the synthesis approach is built firstly,and it involves:(1)the kinematic function units extracted from mechanisms;(2)the kinematic link graph that transforms the synthesis problem from mechanical domain into graph domain;(3)two graph representations,i.e.,walk representation and path representation,of design candidates;(4)a weighted matrix theorem that transforms the synthesis process into polynomial ***,the formulas and algorithm to the polynomial operation are *** on them,the computational flowchart to the synthesis approach is summarized.A design example is used to validate and illustrate the synthesis approach in *** proposed synthesis approach is not only supportive to enumerate the design candidates to the conceptual design of a mechanical system exhaustively and automatically,but also helpful to make that enumeration process computable.

摘要：在电晕探测系统中,为满足高精度Camera link接口相机的高实时视频采集、处理需要,同时降低系统成本及复杂度,提出了一种通过DM642的视频端口扩展Camera link接口的方法。与一般采用FPGA作为处理前端不同,该方法基于视频端口的原始捕获模式,实现了在DM642上的Camera link的直接扩展。设计了硬件电路及VP口采集驱动程序,并采用高精度(16bit)紫外相机进行了实时采集。结果表明,该接口可以满足采用Camera link接口的紫外相机实时采集需求。基于该接口的高速数字图像处理系统已用于紫外探测系统信息处理中。

摘要：Controller link(CLK)网是OMRON开发的一种应用广泛的工厂自动化(FA)网络,其节点为可编程序控制器(PLC)和计算机,FINS是OMRON FA网络的通信协议。CLK网可以实现节点间的数据链接及信息通信功能。在工程应用中,要求在计算机节点上监控网络中的各个PLC节点。该文利用Visual C++6.0设计了基于FINS协议的CLK网监控系统,并成功地用于城市污水处理系统的实时监控。

摘要：在设计测试系统时,要求高速、可靠地传输大量的图像信息至上位机进行存储和处理。采用LVDS或HOTlink信号格式,将远程CCD采集的图像信号进行串行传输,由FPGA乒乓操作进行缓存,通过Cameralink接口,将图像数据以串行方式高速传输至图像采集板卡PXI-1428。实验中以150fps的速度连续采集128×130大小的串行LVDS图像或500fps的HOTlink图像,最大传输速率达到320Mbps。实验结果表明,Cameralink是实现高速串行图像传输的便捷途径。

摘要：针对在应用中高速DSP TS201的link口不能直接通过光纤实现数据远程传输的缺陷,介绍了一种基于FPGA(Xilinx的Virtex-4系列中的XC4VFX60)的link口与光纤通信的接口设计。给出了DSPTS201的link口与光纤通信转换的硬件和FPGA逻辑设计实例,并对逻辑设计的时序进行了综合和仿真,最后在Virtual DSP开发环境中验证了接口设计的link口远程通信互连结果。结果表明通过接口设计电路的转换,TS201 link口实现了在物理层按照RocketIO方式通信,数据层按照link口协议通信的远程数据传输功能,数据传输速度单向为250 MB/s,双向为500 MB/s,且具有高速、可靠稳定等特点。

摘要：为实现远距离、高可靠性传输,并减小复杂度,对Camera link Full接口数据的HD-SDI传输显示进行了深入研究。采用FPGA作为核心处理器,考虑相机输出具有多种帧频,采取帧频检测及充分降频策略,并通过3个SRAM进行缓存以实现帧频转换,以满足HD-SDI帧频25Hz的要求。考虑到SRAM数据宽度,采取FIFO行缓存策略将Camera link Full80输出的10tap、80bits图像数据转换成单通道的8bits图像数据。最后,完成系统设计并进行实验验证。实验结果表明:系统实现了图像数据从50Hz、100Hz、500 Hz等多种帧频的Camera link Full80到25帧HD-SDI接口1080i的格式转换及实时显示,且图像层次丰富,无失真。