Optimization models for computer data storage design: An application

In this paper we discuss a model being used to optimize the system design of the Computer Centre of one of the most important Italian banking groups. Data and transactions, processed by the system, are grouped respectively in data sets and by type, so it is possible to deal with the large dimensions of the corresponding optimization models. The transactions' arrivals are considered as stochastic variables and their probability values are estimated on the base of theoretical considerations. The solutions for two optimization problems, constructed and solved for different scenarios, are discussed in detail.     

Microprocessor-based data acquisition system for respiratory signals

Microprocessors are having an increasing role in online measurements in the medical field instead of large computers because of their compactness, low cost and ease of operation. This paper describes a microprocessor-based data acquisition system representing the primary stage in designing a larger online acquisition and processing system for measurement and correlation of respiratory signals. The system designed has the features of easy communication, flexibility of operation and system's software and hardware. The system uses a mass storage unit for permanent data storage. A detailed discussion of the hardware and software is presented.     

Instrumentation and computer capabilities for improving sodar data acquisition

A computer program has been developed to exploit the multimedia capabilities of a personal computer for a new design of sodar (sonic detection and ranging) data acquisition and control system with minimized hardware elements. Advantages include trouble-free, cost-effective and user-friendly sodar data acquisition using any standard computer. The new design overcomes limitations due to using an add-on data acquisition card with conventional computer-controlled sodar. The data can be processed to produce online display of the dynamics of prevailing atmospheric boundary layer thermal structures and inversion/mixing depth for environmental applications.     

A universal data acquisition program for use with anesthetic monitors and Windows 3.0.

A method is described whereby a single program can acquire data from any patient monitor which has a data output facility. No changes are necessary to the program for different monitors. It provides a method of standardizing data transfer between computers and monitors. The program runs in the Microsoft Windows 3.0 operating system. It utilizes Dynamic Link Libraries (DLL) which enable the operating system to communicate with monitors. Each kind of monitor will use a unique DLL in order to provide a standard interface to the Windows 3.0 operating system.     

基于IPFS生物数据的存储传输

随着生物数据的价值被不断地挖掘出来,对其进行有效存储和高效地传输变得尤为重要。论文通过结合星际文件系统(Interplanetary File System,IPFS),提出了基于IPFS的生物数据存储传输系统,用来提高生物数据的存储传输效率;在生物数据传输方面,引入了数据交换机制和秒传机制来提高生物数据传输速度;在生物数据存储方面,通过采用一种高效的数据存储结构和引入版本控制机制来提高生物数据存储效率。与此同时,通过对生物数据的存储传输进行了深入调研,并进行对比实验验证系统的效果,实验结果表明,相比于HTTP、FTP的存储传输效率,论文提出的系统具有较高的存储效率与传输速度。     

仓储物联网数据采集终端的设计

介绍了一种以S5PC100为硬件平台和嵌入式Linux为软件平台的仓储物联网数据采集终端的设计方案。该终端以基于Cortex-M0内核的LPC11C14芯片为主控制单元,通过仓储环境信息采集模块将采集到的信息上传给控制设备,并对控制设备发出的指令进行及时响应。此方案还集合了RFID技术和ZigBee技术的优势,为物联网技术提供了一种有效的解决方案,在现代仓储管理中具有明显的优势。     

Computer video acquisition and analysis system for biological data

The BIAS (Biological Image Analysis System) was developed to: (i) permit accurate entry and image processing of biological data; (ii) minimize the need for specialized hardware; and (iii) aid in the human genome mapping and other projects. The first mouse/cursor key-driven module was designed to be user interactive and readily accessible to many laboratories. It contains the DRSNDS programs which automate the entering of data in a systematic format. The types of data that can be entered utilizing this module are DNA-RNA gels from either a positive or negative Polaroid image, autoradiograms or biotinylated images from Southern, Northern and dot or slot blot hybridization analyses. The image is acquired using a video camera and then digitized for subsequent analysis. During the analysis graphical representations of the intermediate results are provided to assure user confidence. At any point within the program the user may obtain on-line help with the current task. The output displays the mol. wt of each individual component in the appropriate context. The present version of the program produces results comparable with a human interpreter for some data. Band shifting and optical density calculations are in a prototype form to permit evaluation of various techniques. Future work is directed at expanding the system's capabilities to interpret data from other biological analyses including DNA sequencing gels.     

实时高速数据采集与存储系统的一种实现方法

本文结合ADLINK公司的PCI-7300A_RevB超高速数字I/O卡的应用,介绍一种大容量、高速、实时数据采集与存储系统的实现方法。并根据自己的开发经验,指出实现过程中应该注意的一些问题。     

Virtual vignettes: the acquisition,analysis, and presentation of social network data

Online social networks （OSNs） are immensely important part of the modern, developed society. However digital forensic investigators who have no experience online prevalent and have now become a ubiquitous and online social networks pose significant problems to Data will reside on multiples of servers in multiple countries, across multiple jurisdictions. Capturing it before it is overwritten or deleted is a known problem, mirrored in other cloud based services. In this article, a novel method has been developed for the extraction, analysis, visualization, and comparison of snapshotted user profile data from the online social network Twitter. The research follows a process of design, implementation, simulation, and experimentation. Source code of the tool that was developed to facilitate data extraction has been made available on the Internet.     

SEQ-ED: an interactive computer program for editing, analysis and storage of long DNA sequences

The rapidly growing body of sequenced DNA demands efficient computer programs for its analysis and storage. The program described in this paper, SEQ-ED, has been designed to handle a large number of DNA sequences up to 200 kilobases [kb] long stored in a sequence library. In order to minimize the required storage space, the sequences are stored in a compressed format using three binary digits per base. In the development of this program, special care has been given to make it easy to use for molecular biologists without any previous computer experience.     

一种弹载数据采集存储模块设计

弹上传感器数据如何准确无误上传至上位机并快速进行存储一直是采集存储设备制造的关键技术难题。为解决这一难题,提出一种基于双模式供电、断电续存和交错双页面编程技术的数据采集存储模块。双模式供电保证即使其中锂电池断电,USB接口仍然可以为存储设备继续供电,数据传输不会因断电而丢数;断电续存技术确保断电情况下采集数据的完整性;交错双页面编程技术保障采集数据高速准确实时存储。通过实验可得出,设备断电不会影响采集数据准确性,并且该模块存储速度可达到30.72 MB/s。     

切削刀具综合管理系统的数据采集和存储设计研究*

为建立满足汽车发动机制造企业需求的切削刀具综合管理系统,本文研究了该系统数据库的基础数据采集和存储问题。针对生产现场数据采集困难的问题,设计基于射频识别技术的数据采集方法,提高采集的效率和数据的可靠度。提出刀具与工步对应的存储方法,将刀具信息与生产线相应信息有效衔接。建立系统E-R模型,应用关系规范化理论进行数据存储分析,设计数据表及其相互关系,解决数据库存储的冗余问题。以上述研究成果为基础建立切削刀具数据库,并验证数据库企业实施的可行性。研究成果为建立具有高可靠性和操作性的刀具综合管理系统提供了理论和实践保障。     

小型遥测数据采集存储装置设计

目前,运载火箭遥测系统多采用无线传输的方式,其信道具有一定带宽和容量限制。随着日渐增加的数据采集需求,原有遥测波道趋于饱和。为此,提出了一种小型遥测数据采集存储装置设计方案。该方案以FPGA作为核心控制模块,采用FLASH作为存储介质,可对待测信号进行采集、编帧以及存储。并采取了位置识别技术、分页存储技术、冗余设计等多种可靠性设计措施。该装置以低成本方式解决了现有遥测系统信道余量不足的问题,具有设计简便、可回收、体积小的特点,为后续运载火箭的设计改进提供了有效的数据支持,具备较高的通用性及可靠性。     

基于Windows CE的远程数据采集与控制系统开发

在传统的数据采集系统基础上,引入了基于Windows CE5.0的嵌入式操作系统平台,通过GPRS（通用无线分组业务）的远程控制技术实现了一个远程数据采集与控制系统。实验结果表明,本文方法可以满足多任务、大容量、高实时性和高稳定性的系统要求,同时具有远程控制方便快捷、成本低等特点,具有良好的人机界面,在物联网和智能家居控制等领域具有一定的应用价值。

Abstract：

In traditional data acquisition system,we introduce the embedded operating system platform based on Windows CE 5.0,and use GPRS（General Packet Radio Service） technology to design a remote data acquisition and control system.The experimental results show t     

基于Win CE的金刚石合成状态数据采集

提出了基于流接口驱动模型硬定时中断模式的AD驱动设计,提高了数据采集的实时性;在对内核模式下的中断服务例程(ISR)、用户态的中断服务线程(IST)、虚拟地址的映射及驱动通信等内容进行了深入的分析基础上,构架起基于ARM-3SC2410金刚石合成状态的实时数据采集系统.并采取多线程同步及调度技术实现采集与快速同步显示.实验表明,该采集系统稳定可靠,为建立合成温度估计模型提供了保证.     

USB原理及其在数据采集系统中的应用

通用串行总线(USB)作为计算机领域新型成熟的外围设备接口,具有传输速度快、易扩展、即插即用、支持热插拔、数据传输可靠等优点。在各行业中,常常利用计算机对各种数据进行采集,USB的出现很容易实现低成本、高可靠性、多点的数据采集。介绍了USB的基本特点、USB的结构、USB的基本硬件元素和USB通用软件以及在数据采集系统中的硬件设计和软件构成。     

离线应用本地数据存储设计与实现

为解决离线应用系统中本地数据数据存储问题,设计与实现一个以开源数据库SQLite为底层存储的数据存储方案.针对开源SQLite数据库只支持明文存储的不足,提供了两种可选的加密解密算法,并研究和评估了这两种不同的加密解密算法对数据存储效率的影响.在实现本地数据存储层的基础上,提出了一种实用的数据存储模型,以方便离线应用结构化数据的存取.     

A clustering technique for long local computer networks

A multistage switch connection approach to improve the performance of large local computer networks is devised. The single large LAN is partitioned into smaller networks and these networks are interconnected by a Delta multistage butterfly switch. The performance of the single large network and the proposed partitioned network have been modeled and simulated using SIMSCRIPT II.5. The scheme has been applied to the token bus topology as a case study. It has been shown that the throughput of the proposed partitioned network is increased and there is a significant decrease in the average packet delay compared to the single large network.     

计算机云存储的数据迁移研究

云存储技术是计算机发展过程中的一项重要技术,其中数字迁移是从完全虚拟化的场景中走出来实现高度动态存储的必然条件,因此就必须对计算机云存储数据迁移进行详细的研究.