The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
An automation system, commonly referred to as a Process Control System or Supervisory Control and Data Acquisition (SCADA) System, is critical to the efficient operation, safe and reliable of so many Industrial Processes. Process Control System (PCS) is used widely in infrastructure (including electric power, water, petroleum, and natural gas), as well as in various manufacturing operations. Electronic...
For Unmanned Air Vehicles (UAV) to flight autonomously, the decision making system must be developed to replace the remote control by the pilot. To shorten the learning time and increase the real-time response, the inverse-design (ID) method is presented to calculate the control input decision inversely by using the desired output and the predictor-corrector algorithm which uses the proportional-integral...
This paper discusses in detail the theory and method of non-trust measurement on network behaviors. It points out that the main problem of exploring an indefinite network' trust lies in the lack of non-trust measurement on the network. The paper establishes the syndrome of anomalous behaviors based on the non-trust category of the network. At the same time, it also puts forward the non-trust measurement...
This The pellet sintering process is a physical chemistry process, which is pure time-delay and non-linear with more variables and discrete parameters. In order to solve this problem, a new BP algorithm of NN for the temperature identification of sintering shaft furnace is introduced in this paper. BP network is combined with PID control and simulation effects are given with MATLAB. The experiment...
The reputation of agents in the Multi-Agent System(MAS) has been focused on distributed artificial intelligence domain in recent years. Many efficient and flexible distributed reputation models have been developed. Nevertheless the heterogeneity of agents (including heterogeneous reputation models) becomes one of the obstacles for them to cooperate. Based on the Functional Ontology of Reputation (FORe)...
In this paper, designed the slip motor speed control system for packing rubber strip which is used in plastic steel door and window. The system, 32-bit embedded microprocessor LPC2136 as the control core, PWM speed control, velocity feedback from tachogenerator, rubber strip position feedback from the CMOS camera, has proved that CMOS camera's image quality meets the engineering requirement; Slip...
This paper considers a new transportation problem: Lane Reservation Problem in Time Constrained Transportation. This kind of problem comes from large sportive events in a city or region where the travel time between sportive villages and stadium should fall in a strict time window. To guarantee the athlete transportation in time, the problem consists in temporarily creating special lanes on roads...
Taking the piezoelectric beam as research object, filtered-U least mean square (FULMS) control algorithm for feed-forward adaptive control is analyzed and compared with filtered-x least mean square (FXLMS) feed-forward control algorithm, which can solve the problem that the vibration feedback may affect the measuring of the reference signal in FXLMS. By introducing FXLMS and FULMS control algorithm,...
A facial expression recognition method based on the fuzzy information fusion of the local features is proposed. Each original image is divided into many sub-images and all training sub-images from the same position construct a new training subset. The traditional PCA (principal component analysis) operates directly on a set of new training subsets respectively and a set of projection sub-spaces can...
The grounding system is made of steel in most of developing countries. When the steel is eroded, it is a potential problem and very dangerous to the power system. So, the fault diagnosis on grounding grids is of great economic value for the safety operation in electric power system. In this paper, a simulation computation method is presented by means of a nonlinear model. Via this method, the real...
A fuzzy self-adjusting PID (proportional integral differential) controller of the electrohydraulic servo system is designed and simulated. The controller applies the fuzzy reasoning algorithm into the traditional PID control. The controller can modify the PID factors and some parameters of the electrohydraulic servo system dynamically based on the running condition. The controller is simulated with...
A diagnosis system for pests on fruit trees based on multiple levels imprecise reasoning arithmetic is developed using Visual C++. Object-oriented knowledge expression method is used, which makes it easy to dig and express knowledge and make it efficiently to reason. The mixture of forward and backward reasoning mechanism is used in the system. The rule of depth preference is adopted when searching...
Microturbine generator system is one of the most promising distributed generation systems because it is small, efficient and mobile. When it is running, the high-frequency alternating current of permanent magnet synchronous generator generating must be rectified and inverted into 50Hz AC to meet the user requirements. Normally, the diode rectifier is used. When we need to regulate voltage, the DC/DC...
In order to explain the phenomena of swarm systems form a synchronization behavior, a simple style of Boid model- Vicsek model is adopted. Vicsek model establish a mathematical model of the swarm agent's synchronization. The self-organization regulations have been proposed to aim directly at three components: flock centering, direction coincidence, collision avoidance. We attempt to show the reasons...
The continuous casting process is used for the solidification of molten steel into semi-finished shapes. The technology of secondary cooling is extremely important for output of the casting machine and quality of the strand. In the paper, a dynamic control system is presented, including solidification model in the secondary cooling, feedforward control based on continuous temperature measurement in...
According to a multi-delay dynamic neural group network, the Lyapunov function is constructed firstly to achieve the judgment criteria of global asymptotical stability. Then, the synchronization states are analysized based on the complex coupled network. Through the Lyapunov stability theorem, the multi-delay dependent judgment criteria of synchronization states is presented. Finally, the controller...
Clustering documents enable the user to have a good overall view of the information contained in the documents. Most classical clustering algorithms assign each data to exactly one cluster, thus forming a crisp partition of the given data, but fuzzy clustering allows for degrees of membership, to which a data belongs to different clusters. In this system, documents are clustered by using fuzzy c-means...
This paper proposes a new robust adaptive filtering algorithm for stereophonic acoustic echo cancellation in impulsive noise environment. The well-known conventional two channel normalized least mean square (TCNLMS) algorithm performs very poorly when either the input or the desired signal is corrupted by impulsive noise. By employing robust M-estimate technique, a new two channel normalized least...
This paper considers the problem of robust dynamical order assignment by derivative input feedback of descriptor systems. Descriptor systems provide us a more general description of physical systems, and this description is of great advantage than normal systems. Consequently and undoubtedly, descriptor systems have led us into a virgin land which is full of challenges and opportunities. Because of...
The switch contacts and connection terminals of low voltage distribution box can arouse arc fault easily for the bad contact. The arc fault not only can affect the normal power supply, but also can arouse electrical fire probably. In order to check arc fault reliably, the arc voltage signal and arc light intensity signal are separately detected. This technology is the domestic first. Extract input...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.