基于无线数据传输的钢丝绳张力监测系统

介绍了一种用PICl6C73单片机控制的钢丝绳张力监测系统，由于矿井提升机工作环境的特殊性，检测的数据需要进行无线传输。给出了控制系统组成和工作原理．重点介绍了发送系统控制部分，给出了设计流程。该系统实现了低压无电缆线环境下的压力监测，提高了信号传输的可靠性和灵活性。它只需更换传感器和修改控制软件，就可以扩展到其他监控系统中。     

统一潮流控制器(UPFC)的控制策略研究

首先在分析UPFC基本原理和主要功能的基础上，运用d—q变换，获得UPFC在旋转坐标系下的动态数学模型。针对电力系统的特点，采用改进交互控制方案构建UPFC的控制系统。最后给出Matlab／simulink环境下的仿真模型和仿真结果。     

Low cost pre-stored video transmission across networks

This paper proposes a simple, practical and low-cost dynamic segmentation and bandwidth allocation scheme, called middle point, to transmit pre-stored video from source to playback destination across networks. The proposed scheme is based on two concepts, playback tunnel and bandwidth tunnel, to determine the segmentation boundary and transmission bandwidth with the objective of reducing transmission cost while guaranteeing the playback buffer neither underflows nor overflows. The performance of the proposed scheme is evaluated by a set of real-life MPEG video traces and also compared with the well-known optimal smoothing scheme. The obtained results show that the proposed scheme can be easily implemented with low complexity and low transmission cost.     

Data Communications for Internet Robots

For Internet robots, the most challenging and distinct difficulties are well recognized to be associated with Internet transmission delays, delay jitter and not-guaranteed bandwidth, which might degrade system performance dramatically or even lead to instability. Current approaches to data communication between the remote robot and the human operator employ directly one of the two currently available protocols, i.e. TCP and UPD. In this paper, a teleoperation-oriented data transmission mechanism is implemented. Compared to TCP, the presented scheme provides minimized transmission delays and delay jitter; in the steady state, its transmission rate is much smoother; when available network bandwidth changes, it adapts to the variation quickly without large overshoot. Compared to UDP, it is inter-protocol fairness convergent, intro-protocol convergent, and efficient convergent. The presented mechanism is deployed in a mobile robot teleoperation system developed. In the experiments, users successfully guided a Pioneer-2 mobile robot through a laboratory environment remotely over the Internet via a web browser.     

微波传输线圆图计算及仿真

该文介绍了微波技术中实现圆图仿真和智能计算的必要性以及圆图的构成原理。详细地阐述了圆图仿真和智能计算的实现过程，包括圆图的绘制原理、动画的实现和智能计算的实现，通过一应用实例给出了仿真结果和曲线图。并且得出结论—开发出的圆图计算及仿真软件可用于微波工程计算，同时用Matlab工具软件可以开发出多种仿真软件。     

电力输送模拟与指挥系统

介绍一种可应用于区域供电管理的微机－模拟屏电力输送模拟与指挥系统。     

基于Linux的嵌入式数字监控系统的设计和实现

对视频监控的现行方案进行了分析比较，详尽分析和设计了系统框架模型，对系统结构和功能作出了描述，给出了具体的实现，并对未来可进行的拓展工作进行了展望。     

履带车辆电传动系统电气机械联合制动优化控制与仿真

根据电传动研究情况,提出了电传动电气机械联合制动优化控制目标;在这个目标下,完成了电气制动控制策略优化,进行了原车机械制动系统在联合制动中制动力的分配,通过试验和仿真说明它的合理性;最后给出联合制动的仿真结果,并进行了分析。     

列检微机控制试风系统的研制

介绍了列检微机控制试风系统的研制与实现．系统包括现场控制机系统、无线遥控子系统，列尾风压子系统和远程控制机系统．主要介绍了单片机测控、无线数传、DTMF解码、数据通讯和通信协议．     

无线因特网上的数据传输

1.引言 90年代以来,以蜂窝通讯技术为代表的无线通信技术迅速发展,从原来的模拟无线电台、第一代模拟无线电话发展到第二代数字式蜂窝电话、数字式寻呼设备,再到即将进入市场的第三代移动通信技术(3G)以及正在酝酿之中的4G,人们在任何时间、任何地点与任何对象进行通信的愿望正在成为现实。随着无线通讯技术的进一步成熟,人们不满足于仅仅通过无线网络传送语音,还想无线传送数据信息,实现“移动计算”的梦想。而要想真正实现随时随地的“移动计算”,不但要