控制

Finally, an engineering example, which is an automatic carbarn, is used to illustrate the modeling and analysis methods of CDPN. control and data Petri net ; control system ; modeling and analysis

笔者提出的控制和数据Petri网是控制系统设计的一种模型，通过对该模型的分析，可提前发现前期的设计错误，缩短设计周期，完成对系统控制的确认。1 一种适用于控制系统建模与分析的Petri网

The designs CENTUM CS1000 Distributed Control System, DCS is with the modernization of large industrial production of the constantly rising automation and process control requirements of the ever increasing Canada and the integrated control system.

本设计采用CENTUM CS1000集散控制系统，集散控制系统DCS是随着现代化大型工业生产自动化的不断兴起和过程控制要求的不断增加而产生的综合控制系统。

The design adopts the CENTUM CS1000 Distributed Control System, which was produced by Michael Tien company in Japan Yokogawa. The Distributed Control System has reliable hardware, reliable operating, feature-rich software and good operating characteristics. In the process of energy conservation, control and optimize the consumption will play a positive role.

PX装置异构化单元脱庚烷塔自动控制系统采用了日本横河-北辰公司生产的CENTUM CS1000集散控制系统，集散控制系统，其硬件可靠，运行可靠，软件功能丰富，具有良好的操作特性，并在工艺过程的节能、将耗和优化控制方面起着积极的作用。

Based on the requirement of control index and the characteristic of object controlled, according the experience algorithm to PID parameter, we work out a set of control parameters further.

本文根据实际控制对象的特点，初步制定了一套控制参数，然后根据控制效果进行调整，最终得到最优的控制参数。

He said that the characteristics of macro-control is a two-way struggle, circumflex are different, hot and cold Virtue, first, to control the excessive growth of investment, and the other is to strengthen the agriculture and food production, such as a weak link, from a certain sense, the main structural control, total control is also for structural control services.

他说的特点，宏观调控是一个双向的斗争中，回旋不同，冷热美德，第一，控制投资过快增长，二是加强农业和粮食生产，如一个薄弱环节，从某种意义上说，主要结构控制，总量控制也是为结构控制服务。

Digital PID control was used in the control and was improved according to the actual circumstanced . Based on a lot of experiments and adjusting ,we selected the appropriate parameters and successfully realized the control of the robot soccer.

我们在足球机器人的底层控制软件内使用了数字PID控制算法，并根据实际情况进行了改进；在大量的实验和调试的基础上，选取了合适的控制参数，实现了对足球机器人的控制。

According to the demand of controlling speed, the system give out corresponding clock pulse to control the speed of the motor through the clock pulse.

控制系统按速度控制的要求从时钟脉冲控制线发出相应的控制脉冲即可对步进电机的转速进行控制。

In the performance test of the small engine,the double closed-loop control system can implement constant engine speed control.

在小型发动机性能测试平台中，重新设计了电涡流测功机的控制系统，采用双闭环恒转速控制系统对发动机进行恒转速控制，解决了单环控制性能不佳的问题。

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。

Simulation and practical application indicate that this coalesce intelligent PID controller has advantages of small overshoot and short settling time.

而模糊控制是根据专业人员总结的人工控制规则决定控制量的大小，在控制大滞后、时变、非线性的复杂系统时具有优越性。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。