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1.
Aiming at the time redundancy in the flat panel display (FPD) imaging process,the paper studied some problems for FPD gray scale controlling based on the fractal theory,dissertates the construction of the space-time mapping topology architecture,the proposition of optimal scanning structure for FPD's gray imaging,and the creation of the fractal theoretic model. Then the logic implementation and system application are presented based on the fractal model of the optimal scan architecture,and the application results achieved target of eliminating time redundancy and increasing the scanning availability.The novel control mode that the fractai scanning IP core described with Verilog language embedded in the FPGA hardware frame can efficiently increase the imaging gray scales and quality in the FPDs scanning controller and speed up the frame frequency of display system. 相似文献
2.
With the increase of gray scale and flat panel display (FPD) size, subspace bitwise scanning strategy can be replaced traditional scanning method to cut down frame frequency. However, the direct searching strategy (DSS) becomes unfeasible to obtain corresponding high gray scale scanning matrix. Thus, particle swarm optimization (PSO) is introduced to accelerate searching for high gray scale weights scanning matrix (WSM) with its parallelism and global optimization feature. Finally a WSM of 256 gray scales i... 相似文献
3.
With the increase of gray scale and flat panel display (FPD) size, subspace bitwise scanning strategy can be replaced traditional
scanning method to cut down frame frequency. However, the direct searching strategy (DSS) becomes unfeasible to obtain corresponding
high gray scale scanning matrix. Thus, particle swarm optimization (PSO) is introduced to accelerate searching for high gray
scale weights scanning matrix (WSM) with its parallelism and global optimization feature. Finally a WSM of 256 gray scales
is found out successfully with Matlab, which both gray linearity and scanning efficiency are satisfied. 相似文献
4.
This paper discusses a kind of optimal method used for searching flat panel display (FPD) scanning matrix. The method adopts
bionic algorithm: genetic algorithm (GA) and particle swarm optimization (PSO) algorithm. The method using single GA is more
time-consuming, and the search efficiency is low in later evolution; the PSO algorithm is easily falling into the local optimal
solution and appears the premature convergent phenomenon. Hence, a hybrid approach of GAPSO is found to optimize the search
for high grayscale weights scanning matrix. Finally in the acceptable time, it finds a weight scanning matrix (WSM) of 256
gray scales with Matlab, whose scanning efficiency reaches 94.73% and the linearity is very good. 相似文献
5.
In this paper, a multi-functional development platform for flat panel display (FPD) development is proposed. With the proposed
development platforms, a variety of FPD devices, including organic light-emitting diode (OLED) screens, liquid crystal display
(LCD) screens with touchscreens, OLED microdisplay screens, etc., can be directly and instantly connected, examined and utilized. A field-programmable gate array (FPGA) is used in the development
system to drive different types of FPD devices, and ARM11 S3C6410 is used as the application processor to provide various
services. The development system uses Linux as the system kernel, Qt for Embedded Linux as the UI framework, various system
libraries for video and audio services, and a custom-made user engine for fine-polished appearance and behavior. The development
platform has been used not only in testing and verification of the FPD devices, but also in building OLED-powered handheld
digital devices, shortening the development cycle from OLED devices to mature application products. 相似文献
6.
串行同步双缓冲扫描提高平板显示器的显示亮度和传送利用率 总被引：2，自引：1，他引：2
This paper presents a serial synchronous scanning mode in flat panel display (FPD) by adding a latch buffer between the serializer and the driving buffer. Comparing with conventional techniques, the proposed structure can efficiently reduce the brightness loss and improve the transmission performance. Theoretical analysis and experimental results show that the ratio between the lightest weight display time and the relative transmission time is a tradeoff between brightness loss and transmission efficiency. 相似文献
7.
孙英 《喀什师范学院学报》2010,31(6):42-44
详细论述了基于非晶硅面阵探测器的无损检测成像系统．介绍了PaxScan非晶硅面阵探测器性能和成像过程,给出了所设计的系统各主要组成部分及其主要功能．分析了引起图像退化的原因,针对面阵探测器导致图像退化的因素,分别做了校正．实验表明,系统成像质量能达到工业检测最高级B级． 相似文献
8.
ICE中间件的研究与应用 总被引：1，自引：0，他引：1
阐述了ICE的架构优势、ICE的客户与服务器结构和基于ICE的分布式煤矿监控系统集成框架结构,分析了实现整个系统集成框架的一些关键问题,并给出了部分实例,进一步探讨了ICE的技术优势及应用方法． 相似文献
9.
随着网络技术的发展和教学资源的扩大,改进和优化虚拟实验室体系结构,建立三维模型库,可以提高模型利用率并加快模型检索速度,实现虚拟教学资源的共享性和扩展性。初步探讨了基于网络模型库的虚拟实验室的体系结构,分析了三维模型库设计过程中需要考虑的几个问题,最后实现了一个简单的三维模型库原型系统,并应用在虚拟考察实验室中。 相似文献
10.
在传统的用户/服务器网络结构中,本地数据需要传送到目的地去进行计算和处理,而移动代理的出现则使移动计算变为了现实.移动代理的移动性使之比用户/服务器网络结构更适用于传感器网络.本文提出了一种适用于传感器网络的通用移动代理结构.这种结构称为基于移动代理的传感器网络(MAWSN).本结构中的移动代理可以从以下三个方面减少信息冗余度和通信的额外开销以延长网络的生存时间:①通过本地处理功能减少应用层的冗余度;②通过数据汇聚功能减少数据的空间冗余度;③通过多目标数据融合功能减少通信的额外开销. 相似文献
11.
12.
应用远程无线信息传输技术,可以实现对终端的快捷、有效管理。为了设计一个结构清晰、扩展性强、易于开发和维护的系统,提出了采用J2EE中的struts技术并结合MVC的设计模型来构建系统的解决方案,详细分析了系统的框架模型、功能模块、层次结构以及具体实现流程。 相似文献
13.
为满足彩色等离子体显示器的需要 ,设计了基于AL30 0的平板显示器转换卡 ,它能自动识别各种不同制式(PAL/NTSC/SECAM )的视频信号和不同显示模式 (从VGA至SXGA)的PC图形信号 ,并进行数字化处理 ,再根据显示面板对显示像素数目的要求 ,将数字图像 /图形信号进行行内插值、行间插值 (插行 )及时序调整处理 ,转换成PDP满屏显示的数据格式 ,并产生相应的控制信号 ,其工作过程由微控制器经I2 C实现 .该显示转换卡的显示效果令人满意 ,已被应用于多家公司的产品设计 相似文献
14.
针对传统Web系统架构存在的问题,结合湖北文理学院的云计算平台优势,提出了一个基于云计算的Web系统架构.该架构具有可伸缩优点,支持一云多屏显示和离线应用机制.借助多租户思想,该架构可向用户提供个性化和多样化的规模化定制. 相似文献
15.
针对传统道路目标检测算法推荐窗口冗余、鲁棒性差、复杂度较高的问题,提出基于YOLOv2模型的道路目标检测改进算法。相较于传统的HOG+SVM目标检测算法,YOLO模型优势在于提升了检测速度及准确度,更适用于实时目标检测。比较YOLO V3 与 YOLO V2算法,前者在构造神经网络模型时复杂度较高,故最终选择YOLO V2算法。针对原算法中选取Anchor Boxes时所采用的K-MEANS算法造成的目标物体框冗余问题,以及原算法对于不规则物体以及遮挡物体检测效果较差等问题,提出基于YOLO V2模型的一种改进方法,将K-MEANS算法改进为一种DA-DBSCAN算法,通过动态调整参数的方式大大减少了锚点框冗余问题。实验表明,改进后的模型准确率达到96.76%,召回率达到96.73%,检测帧数达到37帧/s,能够满足实时性要求。 相似文献
16.
With the development of high-speed railways in China, more than 2000 high-speed trains will be put into use. Safety and efficiency
of railway transportation is increasingly important. We have designed a high availability quadruple vital computer (HAQVC)
system based on the analysis of the architecture of the traditional double 2-out-of-2 system and 2-out-of-3 system. The HAQVC
system is a system with high availability and safety, with prominent characteristics such as fire-new internal architecture,
high efficiency, reliable data interaction mechanism, and operation state change mechanism. The hardware of the vital CPU
is based on ARM7 with the real-time embedded safe operation system (ES-OS). The Markov modeling method is designed to evaluate
the reliability, availability, maintainability, and safety (RAMS) of the system. In this paper, we demonstrate that the HAQVC
system is more reliable than the all voting triple modular redundancy (AVTMR) system and double 2-out-of-2 system. Thus, the
design can be used for a specific application system, such as an airplane or high-speed railway system. 相似文献
17.
ZHANG Zhao yang GAO Lei ZHANG Ying CHEN Hao 《上海大学学报(英文版)》1999,3(3):208-213
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18.
屈长青 《湖南科技学院学报》2007,28(4):34-36
分布式入侵检测系统（DIDS）是一种分布于网络环境的入侵检测系统,随着网络环境的日益复杂化,DIDS的设计任务也日趋繁重,对系统的仿真是其规划和设计的首要任务。高层体系结构（HLA）是当今世界上非常流行的分布式仿真技术之一,它建立了一个通用的仿真技术框架。基于HLA的仿真应用系统的设计,已经成为当前的研究热点。分析了HLA和DIDS的基本框架,以HLA为基础,借用相关辅助设计软件,对分布式入侵检测系统进行了仿真设计。通过仿真,较好地解决了分布式入侵检测系统的规划和设计方案的复杂性问题,为进一步的实际开发和应用提供了可靠的依据。 相似文献
19.
分布式CAD环境中基于操作语义的实时协同设计 总被引：1，自引：0，他引：1
提出了一种应用于分布式CAD环境中的基于操作语义的协同设计模型. 主要目的是为了减少数据转换的耗时量以及降低对网络带宽的需求, 从而改善协作能力, 提高实时同步的效果. 首先回顾了实时协同设计的发展现状, 讨论了3种实时协同设计模型. 其次, 给出了操作语义的定义, 并提出了一个操作语义模型框架. 操作语义包含原始设计数据和实际操作过程, 表达CAD系统中的设计者意图和操作活动. 最后, 根据操作语义模型, 定义了CAD操作原语, 该原语可以从CAD操作中提取也可以映射成CAD操作命令; 给出了一种基于该模型的分布CAD协同体系结构, 并通过一个实例加以验证. 相似文献