object variable
1.The control principle and method which used in construction control is stated. The controled object and control variable are defined and objective function is established by stochastic optimal control theory of engineering cybernetics for the error analysis. So the whole construction control is achieved by computer as a measure of joining the two section of a bridge sucessfully.
2.Abstract: The construction control process of Chongqing Huang -hua-yuan Jia Lin River bridge is taken as an example in this paper.The control principle and method which used in construction control is stated.The controled object and control variable are defined and objective function is established by stochastic optimal control theory of engineering cybernetics for the error an alysis.So the whole construction control is achieved by computer as a measure of joining the two section of a bridge sucessfully.
3.To keep a constant luminance of the specific image object despite of a variable lighting, and therefore to enhance the performance of the video measurement & control system, an auto-adaptive control method of stepless adjustment to CCD exposure was put forward. The method was carried out by the coordination of electronic shutter and motor-driven iris diaphragm.
8.Abstract: In order to make an solution to modeling the image database system,this paper proposes an image data model IDM,which decomposes the image object into the primary table of stable attributes and assistant tables of variable attributes and are temporarily organized to access the image data when making query and inference.It can model with unified mode each scheme of the image database system structure.
9.Taking the A10V variable pump by Rexroth Company,Germany,as its primary object of study,the paper established the mathematical model using the power bond graph of the variable pump as shown by Fig 2 in the full paper,and made its dynamic and numerical simulation using the MATLAB language,thus working out the interrelationship among the parameters of the power matching control system and their dynamic results.
10.It discusses control system of boiler feed pump with variable speed and analysis the controlled object by Bristol-skinkey , and the controlled object is decoupled by V standard structure ,decoupled equivalent controlled objects are tuned and adjusted by sum time constant approach, the control system are simulated by computer, step response curves are given.
