利用XML和Excel设计动态通用报表系统的新方法

提出一种利用XML和Excel设计动态通用报表系统的新方法。首先对Excel报表模板进行分解,生成报表模板的报表信息、架构信息和映射信息,再根据统计模板生成统计分析信息,这些信息均以XML文档的形式存入数据库。在系统运行时,将用户上报的Excel文件中的报表数据提取出来,以XML文档的形式存入数据库。然后结合XPath和XQuery对报表数据进行统计分析,得到统计报表数据。最后将统计报表数据组装为Excel文件输出给用户。采用这种方法设计的报表系统动态灵活、通用性强。     

基于第三方控件动态报表打印控件的设计与实现

传统的报表打印功能在系统开发时就已定制好，不同系统不能共享报表的设计。本文从面向对象的角度出发，将报表划分成五个部分，并对报表建模，然后利用ActiveX控件技术把对象模型实现为动态报表打印控件。只需在系统设计阶段引用控件，并通过可视化的界面简单地把数据源绑定到控件上，就可快速设计出用于打印的报表，从而达到报表设计复用的目的，同时也能提高系统的开发速度。     

基于XML的Web系统报表精确打印实现

XML及其相关技术日益渗透到计算机科学的各个层面，针对XML的特点，给出了一个利用XML有效解决B／S结构中客户端快速精确打印报表方法。并以开发的运城市城建局建设工程交易中心招投标管理系统作为实例说明了这一方案在Microsoft ASP．NET平台中的实现过程。该方案实现简单，可扩充性好且易于维护。     

JasperReport在Web报表中的制作与生成

JasperReport是一个报表生成工具,能够展示丰富的页面内容,可生成PDF、HTML、XML格式的报表,且能够应用于各种Java应用程序中.本文通过简单Web报表制作实例的实现,讲述JasperReport技术的机制原理以及开发Web报表的方法和过程.     

基于XML和Web Services的数据交换平台的研究与设计

XML自描述性和平台无关性使得它已经成为通过互联网在各种异构系统间交换和共享数据的强大工具。Web Services技术提供了不同平台上以不同语言开发的应用程序相互通信和互操作的标准手段。文中提出了一种基于XML和Web Services技术的数据共享交换平台模型，阐述了这种模型的结构和实现技术。     

基于XML的校园网络综合管理系统的设计与实现

分析了校园网络资源管理的主要方法,针对传统管理模式中对数据查询精度差、效率低下等问题提出了一种基于XML的校园网络综合管理系统模型。系统采用B/S模式设计,包含用户管理、IP地址管理、报表管理等功能。通过数字签名算法等关键技术,增强数据管理的合法性和有效性,改进传统管理模式,提高了校园网络管理效率。     

基于客服部信息管理系统的整合研究与实现

针对目前常见的应用软件系统存在不同时期开发,软硬件来自不同的厂商,数据、报表格式互不兼容,而形成的“信息孤岛”、“信息壁垒”。为实现信息共享、协调运作,保证信息系统的顺利建设,迫切需要整合资源。在此以客服部信息管理系统为例,提出了一种用同构数据库复制方法和异构数据库复制,解决不同平台系统信息交互问题,采用WebService及XML为各系统建立查询接口实现跨平台的系统间查询,从而实现系统整合设计方案。在此以XML／SOAP／WSDL／LDDI为主干的技术赋予了WebService与传统分布式技术所不同的应用模型,极大地提高了信息系统日常业务工作效率,达到信息管理系统整合的目的。     

基于农作物生长模型XML描述脚本的解释系统

针对一种用XML脚本描述农作物生长模型的方法，提出了对该XML描述脚本进行解释的方法，构建了一个基于Observer模式的XML脚本解释系统。该解释系统能对XML描述脚本实时解释，从而对虚拟农作物生长系统中农作物器官的生长过程进行动态控制，使生长模型中的农学知识能直接融入虚拟生长系统。     

电子对抗仿真中基于XML的数据交换研究

目前电子对抗仿真不仅要求能够有效开发出通用的、模拟实战效果佳的仿真系统，而且还要求能够将各单位已有的不同类型的仿真器连接起来，组成大规模的训练模拟系统，完成重大的军事仿真研究和训练任务。这就存在着大量同构、异构数据交换问题。文章对电子对抗仿真系统的数据传输进行了一定的层次划分，给出了一种利用XML进行数据交换的模型，并对XML文档与各种数据之间的映射规则进行了探讨。     

XML数据查询及优化方法研究

文章分析了XML语言特点及XQL数据查询性能，针对大规模XML文档集合查询提出了一种新的XML查询模型。将查询系统分为schema处理和查询处理两个阶段，详细分析了各个阶段的功能。     

基于LabVIEW的报表生成

报表是以打印格式显示数据的一种有效方式,报表生成功能是虚拟仪器测试系统的重要组成部分,一个好的报表生成工具可以使测试系统的开发事半功倍。本文在研究LabVIEW和Word通信技术的基础上,给出了二者的通信模型,并通过电子测压器的上位机系统为例重点介绍了基于Word模板的报表的生成过程,实现了基于LabVIEW测试项目的...     

基于C／S结构的医院传染病报告管理系统开发与应用

为提高传染病疫情报告率和报告卡填写完好率,解决传染病漏报、迟报的问题,开发一套传染病报告管理系统。采用Client／Server体系结构,以基于HIS系统的Oracle后台数据库为基础,应用PowerBuilder9．0为前台开发工具开发系统的各个模块。该系统的使用加强了传染病报告的信息化管理,规范了报告内容,提高了法定传染病报告的质量。该系统为医院及时、准确地完成传染病网络直报工作提供了可靠保障。     

A Novel CSI Feedback Method for Dynamic SU/MU MIMO Adaptation

Channel state information (CSI) reporting at one mobile station (MS) often targets maximizing the throughput of one single link, hence is optimized for single-user multi-input multi-output (SU-MIMO) transmission at base station (BS). However, the system wide throughput may not be maximized when BS is performing multi-user multi-input multi-output (MU-MIMO) transmission utilizing the SU-MIMO optimized CSI reports, and vice versa. This CSI mismatch can cause system throughput degradation. In this paper, a novel CSI feedback method is proposed which can switch between SU-MIMO optimized CSI reporting mode and MU-MIMO optimized CSI reporting mode when instructed by BS’s signaling. System level simulation results show when BS is performing MU-MIMO transmission, significant throughput gain can be obtained if MS feeds back MU-MIMO optimized CSI reports instead of SU-MIMO optimized CSI reports. With the instruction of the BS signaling to dynamic indicate MS to switch between SU-MIMO and MU-MIMO optimized CSI reporting modes, the SU-MIMO performance is not compromised either.     

Efficient reporting node selection-based MAC protocol for wireless sensor networks

Wireless sensor networks rely on the cooperative effort of the densely deployed sensor nodes to report the detected events. As a result, sensor observations are highly correlated in the space domain. Typically, multiple sensor nodes may report the same event. Consequently, redundant information may be transmitted by the different sensor nodes, leading thus to unnecessary energy wastage. In this paper, we investigate the relationship between the spatial correlation and the number of reporting nodes by developing a new analytical model based on the theoretical framework of the CC-MAC (correlation-based collaborative medium access control) protocol (Vuran and Akyildiz in IEEE/ACM Trans Netw 14(2): 316–32912006). We show that the reporting task can be delegated to a small subset of sensor nodes without transgressing the distortion constraint. Building on this result, a simple spatial correlation medium access control protocol is then proposed to achieve further energy conservation and faster reporting latency than CC-MAC.     

防盗报警系统的设计

本文介绍以C51单片机为核心设计的防盗报警系统.运用现在主流的红外传感器技术、单片机控制技术和C语言编程设计等,实现了防盗、报警的功能要求.     

Power consumption modeling and optimization for NB-IoT eDRX

To extend the battery life of massive machine type devices (MTD),narrow-band Internet of things (NB-IoT) system extended discontinuous reception (eDRX) mechanism of LTE to the maximum as well as introduced a lower power state named as power saving mode (PSM).Three Markov models were established for three typical NB-IoT traffic scenarios,which called mobile autonomous reporting periodic report (MAR-P),mobile autonomous reporting exception report (MAR-E),software update/reconfiguration (SUR).The states of each Markov model were the working status of MTDs,including connected,idle and PSM state,in which the connected state was divided into random access state and data translating/receiving state to further evaluate the additional power consumption caused by collisions from massive MTDs concurrent access.Thereby,the power consumption and delay models with respect to each traffic scenarios were derived.Since the frequency of MAR-P traffic was far greater than the other two,the battery life of this traffic case with its optimal design choice was comprehensively analyzed.Numerical results show that,the battery life is mostly influenced by transmission period,maximum number of random access attempts,maximum number of data transmissions and traffic load,which can be maximized by appropriate parameters setting up.These works provide good references for NB-IoT device behavior modeling and optimization design.     

Channel adaptive CQI reporting schemes for HSDPA systems

HSDPA (high-speed downlink packet access) is an evolved UMTS packet scheme that delivers increased user peak data rates and quality of service. A key technique supporting HSDPA is adaptive modulation and coding (AMC), in which the modulation scheme and the coding rate are changed adaptively according to the downlink channel quality reported by the user equipment (UE). Therefore, the channel quality indication (CQI) reporting scheme is directly related to the accuracy of AMC and the performance of HSDPA. This letter proposes channel adaptive CQI reporting schemes in which UEs report the CQI value intelligently by using information about channel quality. With the proposed schemes, the battery capacity of UE can be conserved and the uplink interference can be lowered by filtering off redundant CQI reports or the transmission error rate can be lowered by fast CQI reports.     

一种高效的协作频谱感知架构

为了有效利用协作频谱感知中的上传时隙以改善感知性能,该文设计一种新的协作频谱感知(CSS)架构。其核心思想是:当一个次用户上传信息时,后面的次用户继续执行本地感知直至轮到其上传时才停止,该方法合理地将一半的空闲上传时隙用于感知,因而更为高效。同时,该文基于Neyman-Pearson准则,研究了AND准则和OR准则下的最优调度策略问题,并讨论了该架构带来的感知性能增益。仿真结果表明:所提架构可以有效改善协作频谱感知性能,而不带来额外的感知时延。     

Trajectory Sampling With Unreliable Reporting

We define and evaluate methods to perform robust network monitoring using trajectory sampling in the presence of report loss. The first challenge is to reconstruct an unambiguous set of packet trajectories from the reports on sampled packets received at a collector. In this paper we extend the reporting paradigm of trajectory sampling to enable the elimination of ambiguous groups of reports, but without introducing bias into any characterization of traffic based on the surviving reports. Even after the elimination, a proportion of trajectories are incomplete due to report loss. A second challenge is to adapt measurement based applications (including network engineering, path tracing, and passive performance measurement) to incomplete trajectories. To achieve this, we propose a method to join multiple incomplete trajectories for inference, and analyze its performance. We also show how applications can distinguish between packet and report loss at the statistical level.     

基于ARM的远程温度监测报警系统的设计与实现

设计了一个基于ARM的远程温度监测报警系统。该温度监测报警系统以Tiny6410为平台,通过DS18820温度传感器采集温度,利用数据库存储温度、时间值并通过网页显示温度数据。此外,通过在网页上设置温度阈值范围,对超出范围的温度点利用蜂鸣器报警,温度监测范围是-55℃--125℃。