This paper expounds the necessity of sun tracking, the paper analyzes the straight line direction and plane around the essence of fixed-point movement, designs the light hitting the track vertical model, details model of the structure feature and functional performance, gives control equations and the...

A novel type of bionic underwater hybrid propeller is proposed, which combines the undulation propulsion and jet propulsion by the use of the double tail fins cooperative driving, and is capable of achieving a serial of motions: cruise, acceleration, turning and braking. Targeting at approximate smooth...

As the acceleration of the process of localization, hardware qualification becomes more and more important for digital control system. This paper states the advantages of digital control system and importance of qualification. It summarizes the contents of qualification test. Based on virtual instrument,...

The paper takes Honda Insight parallel hybrid electric vehicle (HEV) as the research subject, which is assisted by an integrated starter generator. Apply the Insight vehicle simulation model in the ADVISOR software, and formulates the Rule-based Control Strategy (RBCS) and the Fuzzy Logic Control Strategy...

The efficiency of shear line is the bottlenecks of TRB production and quality, the developed TRB automatic cutting system by re-identification of the shape parameters of incoming period variable thick strip, according to the requirements of the finished board, cutting optimization program completed strip...

Combined with the Gray-encoding structured light and binocular stereo vision, the 3D digital reconstruction of the static fabric is realized in this paper. Zhang Zhengyou camera calibration method is adopted to achieve camera’s stereo calibration. After choosing effective area and binarization, the images...

This paper puts forward a kind of unmanned aerial vehicle (UAV) control method for longitudinal dynamics. Which includes velocity loop (inner loop) and height loop (outer loop). Multi-model adaptive control is used to control the velocity of UAV in the inner loop. The construction of model set and switching...

In order to improve aircraft tractor’s ride comfort and traction friendly, this paper takes the MR semi-active suspension as the research object and establishes half body model. Through fitting, this paper obtained the magnetic rheological damper’s damping expression, designed a magnetic rheological...

In order to estimate the heating value of wet multi-plate friction clutch at idle state, the heat-fluid coupling simulation of oil way fluid field is carried out. Taking oil way of clutch as research object, dynamic mesh technique is adopted to implement the dynamic simulation about fluid field in disc...

The purpose of the paper is to design a visual servo robot system to finish some tasks with a better effect instead of workers. This system is designed with closed-loop control based on image feature, and it is more accurate than the control based on position. The system consists of two parts, including...

To avoid small sample problem in pattern recognition, the paper uses KMMC (Kernel maximum between-class margin criterion method) as the basic extraction method for face recognition, which is based on the maximum difference of between-class scatter and within-class scatter in feature space. The objective...

For network cascade control system with double-sampling rate, the paper proposes a new comprehensive scheduling strategy. In the comprehensive scheduling strategy, the variable sampling period algorithm is used in inner-loop and the forecast values are calculated by the cubic exponential differential...

The stepping actuator is a device used to control the choke opening in the subsea production. The performance of the control system is directly related to the subsea production schedule and safety. In this paper, the working principle of underwater stepping actuators is studied. Moreover, the response...

Basing on the research of the basic principle of the space vector pulse width modulation (SVPWM) control method and the DC side voltage control ,the simulation is made ,the simulation results show that the effect of the compensation current control based on SVPWM method and DC voltage control based the...

The current tracking control is the important part of APF (Active Power Filter) system. Since APF compensation current contain high harmonic components, the traditional Tustin discretization method distort the current in high frequency, which makes the resonant frequency of the PR controller shifted...

For the existing problems of security risks when the amplitude of auxiliary shaft hoist vibration is too large, we use the vibration sensors to collect the vibration signals of auxiliary shaft hoist and display it in the monitoring software MCGS, then research on the vibration risk predictive control...

Aiming to solve the problem that DC torque motors is not steady to run at low speed in the control system of opto-electrionic tracking, sliding mode variable structure is applied to the low-speed servo system to improve stability of the system. At first the traditional design method of position, velocity...

According to the properties of water and steam, The evaporating surface of supercritical once-through boiler is divided into a cold-water section, a density-change section and a overheat- steam section for both supercritical and subcritical pressures. A lumped-parameter mathematical model was build up...

Any heat transfer only exists in three ways : heat conduction, convection and radiation. Existing toughened glass process with electric heating wire, heat transfer is given priority to convection. If the infrared heating technology is used for toughening glass production, the way of heat transfer is...

In view of the white LED problems being medium and high color temperature, the poor CRI of warm color temperature, and single control on the market, a plan is given based on ZigBee wireless communication technology of the LED color temperature and brightness independent control system. Through the wireless...

In the active support control system, the sampling accuracy of force sensor directly affect the force control precision of the system, the surface of the primary mirror, and then affect the imaging quality of the optical system. Based on the Kalman filtering, this document introduces the force sensor...

Low Impact Docking System is an active control docking system with functions of docking and berthing, which represents the development direction of the next generation of space docking mechanism. In this paper, the system composition and operating principle of LIDS were introduced and the basic functions...

On the basis of the nonlinear differential equations systems was developed and realized in a Math Lab package the behavior model of thermal processes indoors for automated control system of energy saving.

Permanent magnet synchronous motor (PMSM) has been widely used in industrial fields. The conventional control method for vector control of PMSM is PID, which has some disadvantages such as large overshoot, bad robustness. In this paper, a cascade control strategy with three rst-order linear active disturbance...

To support implicit knowledge acquisition in manufacturing process design and increase the enterprise’s rapid response capabilities and competitiveness, similarity measure on manufacturing process was studied in this paper. Based on the characteristic description of modular process unit, process representation...

A comprehensive exposition on the calculation process of the principle equivalent heat drop thermodynamic system . Articles with equivalent heat drop method to calculate the thermal efficiency N600-24.2 / 566/566 type 600 MW super-critical units, energy management group for this type of machine provides...

The research and development situations of LNG plate-fin heat exchanger (LPFHE) were discussed in view of heat exchange in LNG field in petrol-chemical industry. The basic designing methods and the multi-stream heat exchange processes were illustrated by the cryogenic and high pressure cross heat exchange...