现场控制

This system has function dispersion and can deal with parameter checking, calculation, control strategy, information output and process parameters time-control. These functions will auto-run effectually and reliably that make control dispersion. Fieldbus intelligential model layer in this system is made of a few intelligential models in the fields.

该系统实现了功能分散控制，对过程参数检测及运算处理、控制策略的实现、控制信息的输出以及过程参数的实时控制等都在现场的过程控制单元中有效地、长期可靠地、无人干预地自动进行，从而实现控制功能的高度分散。

It is the focus research of automatic control theory at present and an important developing direction of control technology in the future.

在传统控制系统中引入Internet，将Internet作为数据传输介质，是基于现场总线的控制方式在控制理念上的延伸和发展，是目前自动控制理论研究的重点，是今后控制技术重要的发展方向。

Host controller and multiple-site controller using asynchronous serial communication, or "soft-serial" in accordance with the "communication protocols" to achieve branch communications, computer controlled multi-component of "Distributed Control" system, according to three Flop flip side of the control sub-drive motor, to achieve large-scale three sides of the sign face will be over the screen, time, optional flip way, the sign face of an error "automatic error correction flip" and drive the requirements.

主控制器和多个现场控制器之间采用异步串口通信或"软串口"按照"通信协议"实现分支通信，组成多微机联控的"集散式控制"系统。这种多微机联控系统极大地简化了控制电路的连线，简化了电气控制安装工艺与施工，在降低工程费用和后期维修费用的同时，可大幅提高控制系统工程的可靠性、稳定性、性价比。

After this companys product is and the valve assembles the electrically operated valve or the air operated valve uses, they use for to control the valve opening or the closure, the operator may in the scene manual operation, perhaps the long-distance range carry on the control in the control room.

本公司的产品是和阀门组装成电动阀门或气动阀门后使用的，它们用来控制阀门的开启或关闭，操作人员可以在现场手动操作、或是在控制室内远距离进行控制。同时还提供与各种型号匹配的控制器、控制箱等。

According to the current control situation of jigging machine's material discharge device ,in this paper we have improved its discharge device,used adjustable spade board and studied its control system.

根据跳汰机排料控制的现状，对传统的跳汰机排料装置作出改进，增加了可调铲板，并对其控制系统的设计做了研究，为更好地适应工业现场的要求，引入模糊控制技术，具有高度智能化；以TMS320F2407DSP为核心，设计排料装置控制系统的软硬件，此改进方案能够提高精煤产品质量和精煤回收率，增加经济效益。

This paper based on 180,000 tons of synthetic ammonia and 300,000 tons of urea Manufacturing Process of Henan Heartbeat Chemical Company ,which is born by Zhejiang soupcon Co., LTD.

本文对集散控制系统的发展过程进行了综述，介绍了集散控制系统的基本结构和工作原理，介绍了集散控制系统的发展趋势及近几年来集散控制系统在工业现场的具体运用情况，并重点分析了浙大中控的ECS-100集散控制系统的特点和组成。

Expound clearly the development of the DCS, and the basic structure and the work principle of the DCS and the application at the industry spot of last years, analyzed emphasesly characteristic and constitutes of ECS-100 DCS Zhejiang soupcon Co., LTD. The thesis mostly introduced application of the DCS to urea manufacturing process , and the DCS control, including the control scheme of the DCS design, the controller configuration of the system, and the whole course of the engineering actual and so on.

本文对集散控制系统的发展过程进行了综述，介绍了集散控制系统的基本结构和工作原理，介绍了集散控制系统的发展趋势及近几年来集散控制系统在工业现场的具体运用情况，并介绍了DCS在锅炉控制中的详细应用，并对齐整个过程进行了设计，包括控制方案的设计，系统的组态，直至最后的工程实施等等。

To realize the aim need control net more opening , more intercommunicating and more distracting ,but the technology of PLC net and CAN bus which widely used in factory have localization, they can not fit the new development of factory control net, fortunately the technology of Ethernet used in factory control appear.

由于工业现场目前广泛应用的PLC网络和现场总线自身技术的局限性以及多种总线标准分割共存局面的存在，限制了工控领域网络化的进一步应用。这种局限性促使了以太网和工业现场总线网络混合控制网络体系的出现。

In this way users can acquire various kinds of local information in time. Users can also visit local equipment status informations or control it to carry out defence actions by the order set beforehand in short message. Thus a kind of bidirectional security and defense system syncretizing initiativeness and passiveness has been realized.

这样用户便可以及时地了解现场的各种信息，用户也可以通过手机短信息的方式，以预先设定好的指令来访问现场各种设备的状态信息或者控制现场设备执行防范动作，从而实现了—种双向的主动和被动相结合的安全防范系统。

The many singlechip microcomputers were used as fishponds controlling computers, and one industrial control computer was used as field monitoring computer.

以一台PC工业控制计算机作为现场上位机，以多台单片机作为现场鱼池的下位机，一旦发生故障，养殖池发生环境变化，能够及时报警，从而实现了对养殖现场中鱼类生长的实时监控。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了