采用Linux系统与GSM短消息实现无线远程监控

本文分析了在无线远程监控技术中采用里Linux系统和GSM短消息的优势,对无线远程监控系统的监控中心和监控终端的实现原理和实现方法进行了阐述.     

基于SMS通用型远程无线监控系统的实现

SMS服务可以使用移动设备发送和接收文本信息,通讯费用低廉,使用方便,可靠性高。基于GSM移动通信网络的SMS服务功能,正不断向工业远程监控领域扩展,利用这项服务,对传统的单台工业设备系统实施远程网络监控越来越有必要。文中讲述了用GSM MODEM实现基于SMS的通用远程无线监控的具体硬件组成结构和软件编程方法,通过采用PLC通用的信号输入方式设计了数据采集电路,解决了监控系统的通用性问题,实现了使用手提电话或计算机对一般工业设备的远程无线监控。     

GSM短信息在温室远程监控系统的应用

设计了基于GSM短信息温室远程控制系统,给出了系统的结构、硬件和软件设计,并着重论述了利用短信息实现远程通信的方法.系统利用现有的GSM网络资源,发挥网络覆盖率高、传输特性好等优势,为远程监控系统提供一种便捷的无线数据传输方式.     

基于GSM网络的分布式机房监控方案的设计与实现

该文利用了GSM网络永远在线、覆盖范围广的特性,结合C#编程语言对消息队列进行控制,将数据无线传输技术运用于校园网络的管理从而实现了对分布式远程设备进行实时监控及针对网络的迅速排障,并对监控系统的系统构成、部署方案、技术实现和运行过程进行了详细说明。     

基于GSM网络的分布式机房监控方案的设计与实现

该文利用了GSM网络永远在线、覆盖范围广的特性,结合C#编程语言对消息队列进行控制,将数据无线传输技术运用于校园网络的管理从而实现了对分布式远程设备进行实时监控及针对网络的迅速排障,并对监控系统的系统构成、部署方案、技术实现和运行过程进行了详细说明。     

远程监控系统中GSM网关的研究与开发

在开发设计铁路双电源远程监控系统中，通过GSM数传和短消息通信业务实现数据传输，并设计了一种GSM网关来处理现场采集的数据。该网关采用线程池技术进行SOAP和GSM数据及短消息协议之间的转换，实现了工业现场的远程监控，为监控网络和移动网络的一体化应用建立了统一平台。     

网络控制中心的远程智能监控系统

应用GSM网络,以单片机和计算机为控制中心,以各种传感器为数据检测设备,组成了远程监控系统.设计的机房监控系统,综合了单片机硬件设计、串口数据传输、网络监控、GSM网络应用、LabwindowsCVI软件编程和单片机编程等多方面技术,实现了低成本智能化无人监控功能.系统不仅可以实现24小时无人监控,并具有实时消息报告与...     

GSM在煤矿远程监控软件中的应用

文章阐述了基于GSM技术开发的煤矿远程监控软件的设计思想、设计方法和技术要点。该监控软件采用模块化设计,通过GSM网以短消息的方式传输数据,实现了煤矿设备的远程监控。     

基于GSM的污水COD远程监控系统设计

本文所论述的是基于GSM的污水COD远程监控系统,可通过短信息实时监测污水水位高度.该系统对于监测点分散,数据传送量较少,需要监控的领域有较大的实用价值.     

基于GSM短消息业务的安全监控系统设计

GSM网络已经遍布世界的各个角落,成为目前最广泛应用的通信网络之一.短消息作为GSM系统中较为简便的数据通信方式,其业务和应用得到了迅猛发展.在工业控制系统中利用短消息进行数据传递,既有效又经济.为此提出了一种基于GSM短消息业务的无线远程监控报警系统,并给出了系统各模块的软硬件设计.该系统真正实现了实时监控远程传输,可广泛应用于各种不易巡检的厂房及无人值守的场合.     

Assessing Ideational and Evaluative Skills and Creative Styles and Attitudes

This article describes the rationale for the multiphase creative problem solving process, and reports the findings from an empirical investigation conducted to facilitate the problem solving of managers. The ideational skills of the managers were assessed before and after training in a complete process of creative problem solving, along with their ideational attitudes, creative problem solving style (i.e., generator, conceptualizer, optimizer, or implementor), and evaluative skill (i.e., ability to recognize original ideas). The most important findings indicated that the training had a significant impact on the evaluative accuracy of the managers. They were significantly more accurate in their judgments about original ideas after training, both in their identification of original ideas and their recognition of unoriginal ideas. After training, the managers also gave more solutions and more original solutions to problems. Finally, several variables (e.g., the “preference for active divergence” attitude, and the conceptualizer process style) seemed to moderate the impact of training. Training was therefore effective, with specific effects that can be predicted from pre-training individual differences in attitudes and process style.     

高等院校行政分析与决策系统的设计与实现

为提高高等院校的管理水平和决策水平,充分利用校园网资 源,开发了高等院校行政财政分析与决策系统。解决了诸如数据的动态查询、自动生成报表 、网络环境下数据共享等技术问题,具有网上数据共享、图形界面友好和安全的保密措施等 特点。     

Rank and select revisited and extended

The deep connection between the Burrows–Wheeler transform (BWT) and the so-called rank and select data structures for symbol sequences is the basis of most successful approaches to compressed text indexing. Rank of a symbol at a given position equals the number of times the symbol appears in the corresponding prefix of the sequence. Select is the inverse, retrieving the positions of the symbol occurrences. It has been shown that improvements to rank/select algorithms, in combination with the BWT, turn into improved compressed text indexes.     

Semantics and verification of monitors and systems of monitors and processes

In this paper we present a sound and complete semantics for the monitor concept of C.A.R. Hoare. First a method for specification of monitors, introduced by O.-J. Dahl, is reviewed. This method is based on the relation between the historic sequence of monitor procedure calls and the historic sequence of monitor procedure exits. Based on such specifications and our new monitor semantics we present a method by which it is possible to prove that a concrete monitor is an implementation of an abstract one. In the last part of the paper an axiomatic semantics for systems of concurrent processes and monitors is introduced. The method supports verification by separation of concerns: Properties of the communication to and from each process are proven in isolation by a usual Hoare style axiomatic semantics, while abstract monitors are also specified in isolation by the method reviewed in the first part of the paper. These properties of the components of the system are then used in a new proof rule to conclude properties of the complete system. Stein Gjessing received a Ph.D. (actually a Dr. philos.) from the University of Oslo (Norway) in 1985. Presently he is an Associate Professor at the Institute of informatics, University of Oslo, Norway. Dr. Gjessings research interests are in the area of concurrent and distributed programming, operating systems, formal specification and verification and programming languages.