Hence , the requirements of the servo control card are getting much sophisticated . in this thesis , the research work and implementation details of a 6 axes servo control card are discussed . this card is based on the ti company ? dsp chip tms320f240 and has realized the following functions : a ) signal encoder , b ) position limit , c ) dual ram communication with cpu , d ) coordinated control e ) dia conversion 该卡以ti公司的16位定点数字信号处理器tms320f240为核心芯片，实现6路编码器信号输入处理，轴限位中断处理，通过双端口ram与pc进行通讯，接收pc发送过来的控制指令和数据，完成插补运算、联动运算等控制，通过d / a转换电路，将结果转化为模拟电压送伺服放大器驱动电机。
The thesis emphasis the way and arithmetic of the key equipment of walking reheating furnace : loader machine , unloader machine , walking system , series transfer roll , control system of burning and tracking of steel billet , . make use of the system , we can carry out the function of transferring measuring and weighting , detecting , loading and unloading tracking the steel billet , we can control process of burning and exchange data each other to track the steel billet and manage the process over all of product line . goals of reheating furnace ' s producing process such as high yield , low consuming and pollution , automatic operating mode are achieved 本文着重研究了步进式加热炉关键设备如：装钢机、出钢机、步进梁、炉前炉后辊道、燃烧控制、板坯物流跟踪等控制对象的具体控制软件流程、速度控制曲线、行程计算等具体控制策略和算法，完成了攀钢1450热轧加热炉基础自动化系统（ l1 ）和热工仪表的一级控制，实现板坯输送、测量、装出料、物流跟踪、加热炉燃烧控制以及板坯库的数据信息交换,通过plc和二级计算机系统进行顺序、定时、联锁与逻辑控制，实现了操作自动化与物料系统的全线跟踪管理。
We choose other hardware which are needed for the system . in this article , a control system software is designed using digital pid algorithm , which realize real - time control , dynamic display , data record , parameter modulation and malfunction alert etc . a simulation to the active vibration isolation system is carried on using simulink dynamic simulation module 本文应用数字pid控制算法设计了控制系统的软件,实现了实时控制、动态显示、数据记录、参数调整以及故障报警等控制功能。应用simulink动态仿真模块对主动隔振系统进行了仿真,应用主动控制模式实现了对各种扰动的抑制,提高了隔振系统的综合性能指标。
Photovoltaic ( pv ) panels produce electricity directly from sunlight using silicon cells , with no moving parts . it drives the pump through series of new technologies of electronics , motors , control units and different modern devices to bring wafer up from river , lake or deep well . the system involves optical , mechanical and electronic theories and has an multi - across discipline property of studies 光伏水泵系统是直接利用太阳电池光生伏打效应发电，之后通过一系列电力电子、电机、水机等控制及执行环节从而在江河湖泊或深井中实现提水的系统，该系统是光、机、电、控制技术等多学科交叉、结合的体现。
The study outcomes show that the soil conservation benefit gained through typical conservation measures for the upper stream of miyun reservoir is 62 . 7 % and benefit of pollutant loss reduction between 25 % 40 % and ; the typical measures exert remarkable function on the aspects of area - source pollution control and water source protection 研究结果表明：水库上游典型水保措施的保土效益达62 . 7 % ，减少污染物流失效益在25 % ~ 40 %之间；典型水保措施在减少入库泥沙、减少进入水体的污染物等控制面源污染和保护水源方面发挥了显著的作用。
There are many plants that have the character of time - varying , large delay , large inertia in the process of production of modern power station such as the superheated steam temperature , the reheated steam temperature , the water treatment of boiler and the load regulation . some of them have the strong character of nonlinear and some of them are multivariable coupling systems it is very difficult to obtain good effect of control by conventional pid control . it is necessary to set up the mathematics models of controlled plants if applying control means of modern control theory such as self - adaptive control , optimal control ， decoupling control and predictive control . and these control systems have large calculation and bad character of real time in general . these disadvantages make them be not able to meet the need of real production process and limit the application of them in modern power station . now the generator units are developing towards large capacity and high parameters . many new kinds of generating electricity means are coming into being . the characers of production units of power station become more and more complex but the demand to quality of control becomes more and more strict . the new control means are in bad need to control them effectively 现代电站的生产过程中存在过热汽温、再热汽温、锅炉水处理、负荷调节等许多大迟延、大滞后、特性时变的对象，它们中有些还是具有强非线性特性的对象或多变量耦合系统，采用常规的pid控制手段很难取得良好的控制效果。若应用现代控制理论中的自适应控制、最优控制、解耦控制、预测控制等控制手段，则需要建立被控对象的数学模型，而且往往控制系统的计算量大、实时性差。这些缺点使其很难满足实际生产过程的需要从而极大地限制了其在现代电站中的应用。
In allusion to the coupling influence to system accuracy , this paper brings forward using dynamic robust compensation based on decoupling control . simulation experiments to prove its validity . in allusion to the performance index of simulation table , such as low velocity , high frequency response , high accuracy , etc , this paper analyzes pid control , acceleration feedback , velocity feedback , input signal differential feedforward , and employs compound control strategy including pid control , velocity feedback , position feedback and input signal differential feedforward , 针对仿真转台低速、高频响、高精度等性能指标的要求,分析了pid控制策略、加速度反馈、速度反馈、输入信号微分前馈等控制方式,采用pid控制与速度反馈、位置反馈以及输入信号的微分前馈结合起来的复合控制策略,充分利用反馈和前馈的优势,对转台的位置伺服系统进行研究。
On basis of the technology of activated sludge , the thesis researches how to accomplish the automatic control system of daily sewage processing unit on ship . the thesis discusses the control of the sludge of first deposit pool , do of aeration pool , the refluent sludge , the waste sludge , the amount of medicament and the allocation of flow in detail . because the aeration pool is very important in the system , the thesis discusses it at length including the control of air - blower and so on 在活性污泥法工艺特点的基础上，文章研究整个污水处理过程自控系统的实现，具体讨论了初沉池污泥、曝气池溶解氧、污泥回流、污泥废弃、药剂投放以及流量分配等控制回路的实现，由于整个系统中曝气池作用尤为重要，因此对其进行了全面的讨论，包括利用变频风机、控制解耦等方法。
The methods considering the elastoplasticity are the elastic - plastic hinge method and the pseudo load method . based on the need of non - linear analysis , researchers brought forward nonlinear calculation methods to control the iterative constringency , such as the load controlling method , the displacement controlling method , the arc length controlling method and the pseudo load method 考虑弹塑性的分析方法有：弹性-塑性铰法和虚拟荷载法根据非线性研究分析的需要，研究人员先后提出了：荷载控制法、位移控制法、弧长控制法和做功控制法等控制迭代收敛的非线性计算方法。
The lpg - fueled engine is modified and optimized using electronic controlled fuel injection technology ; the comparison of engine performance with direct injection , intake liquid injection and gas injection has been done . the air fuel ratio , ignition timing and injection timing of the engine has been optimized and calibrated 本文利用电控喷射技术对lpg发动机进行改造和优化，对比研究缸内直接喷射、进气道液态喷射和气态喷射的发动机性能，并对空燃比、点火提前角和喷射时刻等控制参数进行优化和标定。
