ASEHM: a new transmission control mechanism for remote rendering system

Digital 3D models have emerged as a new type of multimedia following sound, image and video. This media type has been distributed and processed widely on desktop PCs. However, processing 3D models on mobile devices is more difficult, mainly due to their physical constraints. Though the remote rendering framework is able to make up for some deficiencies, previous methods based on this framework suffered from high transmission frequency, which just imposes a high power demand on mobile devices’ already limited battery life. In this paper, a new transmission control method, Adaptive Splitting and Error Handling Mechanism, is proposed to be integrated with canonical remote rendering system. Our mechanism is able to reduce transmission frequency by trading transmission with splitting operations. According to relevant research findings, reducing frequency will result in a decline in power consumption. Finally, the effectiveness of our method in terms of frequency reduction is validated by comparison with state of the art method.     

A logical model for the remote control of power system topology

In a recent approach proposed by the authors, an operator level language has been proposed for the remote control of power systems topology. The implementation of this language requires modelling the complex switching constraints and the operator logic of reasoning in a form adapted for automatic processing. This paper presents a method for modelling these constraints and discusses its advantages.     

Attitude control system specifications for a remote sensing satellite

Abstract

Though the literature is replete with papers on remote sensing via space satellites, the specifications in terms of jitter and drift rate that have to be met by the specific mission, are often either over-specified or under-specified. In this paper the authors endeavour to present, through heuristic arguments, the effect of jitter and drift on picture quality, and to arrive at the proper specifications on attitude and orbit control systems for remote sensing satellites.     

某型遥控系统编码器研制

本文介绍了一种基于频率合成技术的编码器,叙述了该编码器的研制方案及实现方法。该编码器采用89C2051单片机,通过改变参考频率,控制频率合成器产生不同的音频信号,再将这些音频信号按时序要求组合成编码指令。该编码器具有体积小、重量轻、性能优良、形式新颖、成本低廉、使用方便等特点。特别是本文提出的利用单片机为频率合成器提供不同的基准频率从而得到不同音频输出信号的方法,新颖简单、灵活方便。     

车载无线中控系统

针对中低端车辆车载系统缺乏智能的问题,将嵌入式ARM控制系统与4G无线传输系统相结合,设计了基于ARM车载控制系统的无线远程监控系统。介绍了系统的整体架构以及模块间的数据通信和信号控制。为加强车主对车身的把握,系统有激光测距进行平面建模的扩展功能。实验表明,该方案可以用于中低端汽车实现快速、廉价的智能化。     

A new intelligent system for senior executives to maintain remote control of their company

The mobile-enterprise concept has emerged as an innovation with the increasing use of personal digital assistant (PDA) on wireless data networks. To realize the concept, simply use the PDA to search for information is not enough, where an intelligent paradigm is required to deal with the request for information as well as the command execution in a distributed information system. This paper proposes a mobile-enterprise multi-agent paradigm (MMAP) which is an agent-based intelligent solution provider developed for small to medium enterprises (SMEs) in order to increase their flexibility and competitiveness in the market. The system is driven by intelligent software agents. Their design and prototype implementation are demonstrated in this paper.     

智能家居远程控制系统的设计与实现

物联技术的发展使智能家居成为改善人类生活质量的一个重要指标。文章实现了一个基于ARM的智能家居远程控制系统。该系统以S3C44B0X为核心处理器,外部扩展了Flash、SDRAM及网络接口;通过定制的湿度、风速传感器采集环境数据;用步进电机、继电器和被控对象相连接来控制其移动。在软件设计时移植了引导程序Bootloader及uClinux操作系统,并采用Boa和CGI的方式在uClinux上构建了Web服务器;完成了基于嵌入式Web服务器的网站程序,用来接收用户请求、返回页面及调用相关子程序(采集、控制),最终实现了智能家居远程网络控制的系统要求。     

机场助航灯光远程监控系统研究与实现

将工频载波通讯技术和助航灯光检测技术相结合,构成工频载波助航灯光监控巡检系统,实现了助航灯光巡检监控的自动化.系统可以实时监控灯光设备运行情况,保证飞机进近和着陆安全.双向工频通信技术的使用,使得无需重新铺设通讯线路,降低了成本.监控计算机可以合理安排灯光维修时间,提高维修效率.对监控系统关键技术,如工频载波通讯技术和基于TCP/IP协议的局域网通讯实现进行了讨论.该系统的使用可提高灯光系统的可靠性,增强机场地面的保障能力.     

一种智能家居远程控制系统的硬件设计

设计智能的可远程控制的家居控制系统,采用STC89C51RC、STC89C58RD和STC2052AD作为微控制器,通过nRF24L01提供的2.4 GHz无线连接,实现各部分之间的通信,以智能化控制家用电器,并通过TC35提供的SMS接口,实现了通过移动终端远程控制家里电器的功能.     

采煤机网络化远程控制试验系统设计

针对采煤机远程控制系统在实际生产工作面上进行研究成本高、难度大等问题,提出了一种采煤机网络化远程控制试验系统的设计方案,研究了符合试验要求的采煤机内部控制结构,介绍了采煤机机载控制器和无线收发控制器、地面主机和井下主机控制软件的设计。该系统采用远程/本地控制模式搭建了采煤机远程控制系统网络,通过以太网、光纤、RS485总线、无线网络传输控制信号,实现了在地面主机(远程)、井下主机(本地)上控制采煤机动作的功能。该试验系统的搭建也为采煤机远程控制的进一步研究提供了试验平台。     

The BTRC Bluetooth remote control system

Emerging radio technologies like WLAN and Bluetooth enable electronic devices of any kind to communicate with one another. A simple and easy to implement application layer protocol called BTRC protocol was developed allowing devices to exchange data of any kind and format over different protocols like TCP/IP or Bluetooth. Based upon this protocol a universal remote control system was implemented. Software applications simulating cellular phones and personal digital assistants (PDA) were developed as remote control devices. BTRC server devices send their graphical XML based user interface to the remote control. In this way, the use of household devices is simplified significantly.     

单片机Zigbee技术在远程抄表系统中的应用

开发了基于ZigBee技术实现无线水表及抄表系统,并介绍了其软件、硬件设计方法。采用的MCU和射频收发模块分别为Freescale公司生产的MC9S08GT60和MC13193,讨论了脉冲信号采集方法、ZigBee无线通信接口的实现以及ZigBee协议到Meter2Bus协议的转换等问题,最后展望了无线水表的应用价值和ZigBee技术的发展前景。     

顶管掘进机的计算机远程监控系统设计

顶管掘进机广泛应用于隧道挖掘和管道铺设。为使其高效工作,设计了远程计算机控制系统。结合项目要求,分析了系统结构,提出了系统设计的新方法,总结了设计的要点和思路。系统上下位机结合通信技术,可实现控制顶管掘进机的有效运转。     

IBS推进遥控系统中随动过程控制算法的研究

本文以IBS推进遥控系统中的随动过程为例,介绍了基于专家控制规则的PID控制方法,此方法克服了传统PID控制鲁棒性差的特点。     

煤矿掘进机器人虚拟仿真与远程控制系统

针对现有掘进机视频监控和遥测遥控等监控方式存在图像不清晰、无法真实反映掘进机位姿和工况状态等问题,提出了一种煤矿掘进机器人虚拟仿真与远程控制系统,介绍了系统方案设计,对掘进机器人改进设计、虚拟仿真远程监控平台、掘进机器人控制模型等关键技术进行了研究。该系统利用虚拟现实技术有机整合井下操作人员、掘进机器人和井下环境信息,以掘进机器人自动掘进和远程人工干预为目的,实现了掘进过程的运动控制和巷道成型掘进控制功能。实验结果验证了该系统的有效性和良好的控制性能。     

双功能远程控制分布式无线控制系统

本文主要以解决方案形式介绍了具有GSM短信控制功能和公共电话网控制功能的控制系统,同时为解决分布式控制系统存在重新布线或布线困难的问题,采用无线分布式控制方式,使被控设备可以独立设计,方便灵活。     

Experience with remote procedure calls in a real-time control system

This paper describes several years' practical experience with remote procedure calls as a primary tool for application software in a large and complex distributed real-time process control system. We motivate the use of remote procedure calls as an effective technique for the use of local area networks, describe our implementation and discuss its advantages and disadvantages.     

Development of a remote control system for construction machinery for rescue activities with a pneumatic robot

Rescue activities at disaster sites often require the remote control of construction machinery to ensure the safety of the workers. A pneumatic 6-d.o.f. robot arm was developed to achieve the remote control of construction machinery. A lightweight fiber-knitted-type pneumatic artificial rubber muscle was selected as the actuator for the arm after considering portability and installation issues. A control system was then designed to remotely operate the pneumatic robot arms. The system consists of the slave and master side. The slave side is composed of two robot arms, a control box, a power generator and an air compressor. The master side consists of two joysticks and a laptop PC. A wireless LAN was employed to achieve the remote control. Construction machinery was retrofitted with the pneumatic robot and field tests were performed at a real construction site. The operation times using remote control and direct operation were compared. The results confirmed the effectiveness of the proposed system.     

远程智能家居控制系统设计

本设计致力于解决家庭安防、智能家居控制、远程视频监控、自动清洁控制问题。机器人集成自动巡航、自动清洁、远程陌生人报警、烟雾报警、火焰报警、远程视频监控、远程云台控制、远程机器人遥控、家电遥控学习以及家电遥控等功能。使用C/S模拟P2P技术,搭建服务器、客户端,进行Socket通信。通过在家居中建立各种形式的通信网络,实现对所有家庭网络上的设施的控制和维护;其次,通过无线网络通信方式构成与外界的通信通道,以实现与外部世界的信息沟通,满足远程控制的需要。     

基于AVR单片机的远程控制系统的研究

介绍了一种利用AVR单片机和RTL8019AS以太网控制器实现的RS232接口设备远程控制系统,对AVR和RTL8019AS的硬件连接做了详细说明,并介绍了RTL8019AS的工作原理及系统的软件流程。该系统可实现段最大长度为100m、数据率为10Mbps的以太网数据接收与控制。