A highly dependable self-adaptive mixed-signal multi-core system-on-chip architecture

In this paper we propose a design of a dependable self-organizing and adaptive mixed-signal SoC. We introduce an Artificial Hormone System (AHS) as a general control mechanism, which addresses the goals of organic computing methodology. Regarding the coexistence of digital and analog components in SoCs, we developed two new AHS implementations, one pure analog approach and one mixed-signal approach. Besides the basics of the hormone based control mechanisms, especially for the analog domain, this paper adapts the AHS upon mixed-signal SoC and presents the evaluation of a completely simulated AHS-controlled SoC. This evaluation verifies the approaches including stability issues as well as upper timing bounds and shows the improvement achieved on the system reliability. We also state the advantages from the hormone system compared to other approaches, as well as the strong points of the different hormone systems to one another.     

基于输入子系统的Linux触摸屏驱动的实现

文中对输入子系统模型进行了介绍并重点对该驱动模型的实现原理及机制进行了分析。在此基础上,使用输入子系统驱动模型框架,以ARM处理器S3C2440嵌入式芯片为硬件平台,配合其芯片内部集成的触摸屏控制器,设计了Linux下的电阻式触摸屏驱动程序,实现了在S3C2440平台上,电阻式触摸屏的触点位置坐标采集和触点跟踪。     

IP技术在SOC中的地位及应用

本文主要介绍了IP技术的概念，并且对其在SOC的地位作了详细的说明，最后对IP在SOC中的应用作了简要的介绍。     

基于FPGA的数据采集卡的CPCI接口设计

该文介绍了高速数据采集卡上基于FPGA实现CPCI接口的方案,其中包括从模式下单周期读写和主模式下DMA的实现。最后结合开发实例,介绍了如何开发PCI接口的DMA驱动程序。     

智能发光二极管照明控制系统设计

为了提高发光二极管（LED）照明系统的智能化程度,介绍了一个以1pc2103为控制核心的设计方案。系统由主控制器和单元控制器构成,热释电红外传感器检测的人体移动信号,与光敏电阻检测的环境光强度信号送入PIC16F628a单片机,实现移动人体和环境光照强度检测。采用PT4115芯片,实现LED光源恒流驱动,运用脉冲宽度调制调光方式,使光照强度保持稳定,从而实现对LED照明的智能化控制。实验结果充分证明了系统方案的可行性、高效性和稳定性。     

基于STM32的半导体激光光源驱动器的设计与实现

为实现半导体激光光源驱动器的工程化,设计了一套低功耗、低成本的实用型光源驱动器。该驱动器以ARM微控制器STM32F103VCT6为核心,以TEC控制器MAX1968为执行器件,配以相应的软件,以模糊PID计算控制量。实验证明,设计的控制器实现了半导体激光器驱动电流和温度的精密控制,温度控制精度可达到±0.03℃,激光输出功率稳定度可达到0.002dB,具有高性价比和高集成度。     

高速列车牵引电传动系统集成与优化设计研究

高速列车是高速铁路系统的核心技术装备和实现载体,是当代高新技术的集成,涵盖了信息通信、电力电子、材料化工、机械制造、自动控制等多门专业,是国家科技水平与制造产业能力的集中体现,可充分反映国家的综合国力和现代化程度。本文通过基于顶层目标确定的方法,对高速列车牵引电传动系统的集成与优化设计进行了研究,使系统内各项技术紧密围绕顶层目标。本文将高速列车系统科学的划分为多个子系统,并把牵引电传动系统的顶层目标细化在各子系统的优化设计方案上,更好地实现资源有效整合。     

A survey on analysis and implementation of state-of-the-art haze removal techniques

Haze is a poor-quality state described by the opalescent appearance of the atmosphere which reduces the visibility. It is caused by high concentrations of atmospheric air pollutants, such as dust, smoke and other particles that scatter and absorb sunlight. The poor visibility can result in the failure of multiple computer vision applications such as smart transport systems, image processing, object detection, surveillance etc. One of the major issues in the field of image processing is the restoration of images that are corrupted due to different degradations. Typically, the images or videos captured in the outside environment have low contrast, colour fade and restricted visibility due to suspended particles of the atmosphere that directly influence the image quality. This can cause difficulty in identifying the objects in the captured hazy images or frames. To address this problem, several image dehazing techniques have been developed in the literature, each of which has its own advantages and limitations, but effective image restoration remains a challenging task. In recent times, various learning (Machine learning & Deep learning) based methods greatly condensed the drawbacks of manual design of haze related features and reduces the difficulty in efficient restoration of images with less computational time and cost. The current state-of-the-art methods for haze free images, mainly from the last decade, are thoroughly examined in this survey. Moreover, this paper systematically summarizes the hardware implementations of various haze removal methods in real time. It is with the hope that this current survey acts as a reference for researchers in this scientific area and to provide a direction for future improvements based on current achievements.     

西门子S7-400系列PLC在原料煤储运系统中的应用

本文通过西门子s7-400系列PLC在我公司60万吨醇氨联产项目原料煤储运控制系统中的应用,从PLC硬件和软件两方面,介绍了PLC控制系统硬件、软件的选型、设计和组态方面的内容。     

基于WinDriver KernelPiugIn＋Windows 2000 DDK实时中断技术的研究

从工程应用的实际出发,介绍基于KernelPlugIn和DDK技术实现Windows 2000环境下的实时中断处理,详细分析在Windows 2000环境下实现高精度定时中断的工作机制和Windows 2000工作时钟与中断时钟的关系.并利用PC机现有的硬件资源系统时钟定时器和并行端口,在内核模式下通过修改系统定时器的分频值来改变中断周期.由标志变量周期性地改变并行数据端口的电平输出,通过示波器输出来分析实际输出结果,最后根据试验情况以表格的形式给出具体的中断周期数据.