Windows CE.NET实时性能的测试与研究

嵌入式操作系统的实时性能是衡量一个嵌入式操作系统的重要指标。目前有多种指标和测试方法可以测量一个操作系统的实时性能。本文主要关注于使用OSBench采测量Windows CE．NET任务调度器的实时性能，并分析了在不同系统硬件和不同系统负荷情况下实时性能的变化情况。得到了四种不同同步方式的时间特性，及它们之间的比较差异，也证明了windows CE．NET具有最好的实时性能。     

Windows CE.NET驱动开发中的中断处理机制研究

从驱动程序开发人员的角度就Windows CE．NET下中断体系结构给出了分析；结合WinCE下串口驱动的实例，探讨了OEM适配层中断服务例程（ISR）处理；介绍了中断服务线程（IST）中断处理，并提供了一个初始化和执行模板。     

An integrated genetic analysis microfluidic platform with valves and a PCR chip reusability method to avoid contamination

Clinical diagnostics and genomic research often require performing numerous genetic tests. While microfluidic devices provide a low-cost alternative to such demands, integrated microfluidic devices are fabricated using expensive technology not always affordable for single use. However, carryover cross-contamination (CXC) concerns (i.e. either false positive or false negative PCR data) in PCR chips prevent reuse, defying much of the advantages of miniaturized systems developed using expensive MEMS processing. In this work, we present an integrated and reusable PCR–CE glass microfluidic chip capable of multi-chamber PCR and sequential CE, with emphasis on a unique chip reusability approach to avoid CXC. For reliable PCR, the surface of the chamber is re-configured from its virgin hydrophilic (CA < 20°) to hydrophobic (CA > 110°) by silanization. To then extend this silanization method as a chip reusability technique, the silanization coating is ‘stripped and re-silanized’ (SRS) to create a fresh coating prior to each successive PCR run. Experimental confirmation of the effectiveness of SRS method in avoiding the CXC is demonstrated using plasmid DNA and HIV-1 infected DNA samples. We also present passive plug microvalves incorporated in the chip to enable fluid/vapor retention during the PCR and controlled fluid flow from the PCR chamber to the CE section for further analysis.     

The long path towards implementation of clinical proteomics: Exemplified based on CKD273

Clinical proteomics aims at the development and the implementation of novel biomarkers that demonstrate a clear clinical benefit in the management of diseases. However, though the attention in the field is increasing and multiple articles on biomarker research are published, clinical implementation of these biomarkers is scarce. In this paper, we aim towards identifying the hurdles on the path towards implementation, and present one successful approach, based on capillary electrophoresis coupled with mass spectrometry. A panel of biomarkers identified and assessed using this approach, termed CKD273, has recently received a Letter‐of‐Support from the US‐Food and Drug Administration (FDA), and is now implemented in the (early) management of chronic kidney disease. Based on this experience in the process towards implementation of CKD273, issues associated with implementation and suggestions how to meet these challenges are given.     

单载波MIMO系统的一种抑制噪声的MMSE信道估计方案

单载波MIMO系统的频域均衡是对抗信道频率选择性衰落的有效方法,它的良好性能依赖于接收端准确的信道估计(ChannelEstimation,CE)。常见的迫零信道估计(ZF-CE)在导频频域非恒包络的情况下,会使信道估计误差增大而造成误码性能降低。本文通过设计导频结构,提出一种实用的最小均方误差信道估计(MMSE-CE)算法和抑制噪声的内插方法,构成单载波MIMO系统频域均衡的一种信道估计方案。理论分析和仿真结果表明,该方案能较好的减小导频频域能量不恒定造成的性能损失,误码性能比ZF-CE显著提高。     

数字触摸屏在WINDOWS CE中的应用

触摸屏是最方便、简单、自然的输入手段。触摸屏分为数字屏和模拟屏。数字屏可以进行多个触摸位置的采集输入,实现复杂的操作控制。在WINDOWS CE系统中只能有一个输入焦点,不支持数字触摸屏,因此需要进行特殊处理。本文利用流接口进行触摸位置和动作的输入,在应用程序中通过将数字屏触摸数据转化为鼠标消息和自定义人机交互对象进行特殊处理,实现了数字触摸屏在WINDOWS CE中的应用。     

基于Windows CE的通信技术

讨论ＷｉｎｄｏｗｓＣＥ所支持的两种基本通信技术,即串行通信和网络通信,并通信Ｗｉｎ３２ＡＰＩ描述了基于ＷｉｎｄｏｗｓＣＥ的平台如何建立各种串行连接和网络连接。对于各种连接实现途径,指出其与桌面计算机的区别。     

使用ADS7846实现StrongARM系统中触摸屏电路

在当前的掌上电脑等嵌入式系统中，触摸屏已经成为必不可少的外围设备之一。文章讨论了在基于SA—1110微处理器的开发平台上使用ADS7846控制芯片完成触摸屏模块的软硬件设计，以及在Windows CE操作系统中的软件驱动程序开发。     

嵌入式操作系统Windows CE下触摸屏驱动的开发

触摸屏作为终端与用户交互的媒介已经逐渐取代键盘成为嵌入式计算机系统的输入设备，而触摸屏的应用是建立其驱动程序之上，所以研究触摸屏驱动程序的开发就有了重要的意义。本文针对S3C2440的触摸屏模块完成了其Windows CE下驱动程序的开发，在Platform Builder 4．2下进行驱动代码的编写、编译，并通过软硬件交叉环境进行调试，最终完成了触摸屏驱动程序的开发。     

嵌入式智能机器人平台研究

针对传统工业机器人采用的封闭式结构的局限性,在Windows CE.NET系统基础上,通过剪裁定制,去除冗余的功能,搭建嵌入式智能机器人平台．该智能机器人系统具有移动机器人需要的主要感知模块,并有丰富的运动控制接口及驱动模块．同时,设计了多传感器数据融合、轨迹规划、运动控制、无线网络通信、图形人机界面等智能机器人的测试软件和应用模块．该智能机器人平台具有模块化、易扩展、可移植、可定制、硬件体积小、功耗低、实时性强、可靠性高等优点．