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This paper focuses on the problem of servo control for automatic adhesive crystal orientation instrument. A three-loop cascade control structure is proposed based on the vector control theory. According to the process requirements of the equipment, PI controllers are employed in a current loop and a position loop. For a speed loop, an internal model controller is designed based on the internal model...
Software Defined Networking (SDN) is a new programmable network construction technology that enables centrally management and control, which is considered to be the future evolution trend of networks. A modularized carrier-grade SDN controller according to the characteristics of carrier-grade networks is designed and proposed, resolving the problem of controlling large-scale networks of carrier. The...
The research object of this paper is negative control system in axial piston pump, which widely used in excavator. The control system changes the delivery of the pump by the complicated mechanism to realize the adjustment of the pump flow rate. This paper takes advantages of the AMESim and ADAMS to build the system hydraulic model and mechanical model separately, and lets them exchange data to complete...
The low-voltage switching devices are widely used in all aspects of the power system. It is essential to verify performance after design, manufacture or repair. In our national standards and the international IEC standard, short-circuit test of the electrical products for use in the power system is very important, so it is necessary to research and develop the short-circuit test equipment and this...
This paper presents a suboptimal deadlock controller for a class of manufacturing systems of sequential processes with resources, where deadlocks are characterized by saturated maximal perfect resource-transition circuits (MPRT-circuits), and the controller consists of two parts. In the maximally permissive Petri net controller, which avoids all MPRT-circuits being saturated, some control places are...
To prevent management risk of the medical insurance fund and to increase the service level, this paper presents an fundamental data audit approach for medical insurance fund management information system (MIFMIS). It combines manual audit with computer audit. The audit task is accomplished by using internal control audit, application program audit and data file audit. It was used in a practical MIFMIS...
A nonlinear controller is designed for a L2 formation flying control system, and robust stability is investigated for the closed-loop system with uncertainties. The L2 formation flying is modeled as a second-order quasi-linear parameter-varying model, which is obtain from the nonlinear formation flying model with Barbashin method by including explicit dependence of the dynamic derivatives on states...
To guarantee the grain’s safe storage, it’s necessary to strictly control the stored-grain’s internal and external influence factors such as temperature, moisture, humidity and pests. The application of information fusion techniques on monitoring and controlling system of stored-grain condition is a useful consideration. In this paper, a new method based on multi-parameter and two stage information...
In this paper, we use virtual instruments (VI) and commercial off-the-shelf (COTS) technique to construct a portable general automatic test system (ATS). The system's function were realized by using PXI based modular architecture in its automatic test equipment (ATE). While its test program set (TPS) was compiled on the basis of the graphical development platform - LabVIEW8.2. By using powerful data...
The railway transport produce dispatch (RTPD) system is a complete scheme of railway transport, which combines the original independent systems of railway transport, and improves the efficiency of the transport dispatch. It adopts advanced technology, such as server hot backup frame, redundant double circle networks, link machines and so on, and has extremely high security, stability and economical...
To solve the problem which is hard to avoid the local optimal solution or slower population diversity when using genetic algorithm to generate the fuzzy rules in a fuzzy system, this paper proposes an automatic rule generation using fuzzy genetic algorithm. This algorithm utilizes the rules population diversity and evolutionary speed to automatically adjust the crossover rate and mutation rate based...
This is the second part of the two-part paper to illustrate the control system design and multi-energy strategy, it is the key to fulfill the fuel economy target for ISG hybrid bus. Based on a hierarchical structure, the control system is developed with the HCU (hybrid control unit) as the central controller to coordinate the motor, engine and CAN communication protocol. The multi-energy control strategy...
This paper presents an Active disturbance rejection controller (ADRC) based lateral control algorithm for tracked robots on stairs, with the heading angle estimated by the vision system fixed on the robot. It can help the robot keeping its posture in order to avoid the serious influences caused by a wrong operation. Or with some further efforts on intelligent control, the robot can also auto guided...
This paper presents active disturbance rejection control system for toggle-motor coupling servomechanism system. Genetic algorithm and mixed H2/Hinfin norm index are utilized to optimize the system parameters; Monte-Carlo method is applied to evaluate the robustness of the control system. Simulation results show that under the condition of external disturbance, parameters perturbation and coupling,...
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