Title

Author

Abstract

Networked 3D Virtual MuseumSystem

Yong-Moo Kwon,Ig-Jac Kim,Sang Chul Ahn,Heedong Ko,Hyoung-Gon kim

Virtual heritage has become increasingly important in the conservation, preservation, and interpretation of our cultural and natural history. Moreover, rapid advances in digital technologies in recent years offer virtual heritage new direction. This paper introduces our approach toward a networked 3D virtual museum system, especially, how to model, manage, present virtual heritages and furthermore how to use computer network for the share of virtual heritage in the networked virtual environment. This paper first addresses a 3D acquisition and processing technique for virtual heritage modeling and shows some illustrative examples. Then, this paper describes a management of virtual heritage assets that are composed by various rich media. This paper introduces our schemes to present the virtual heritages, which include 3D virtual heritage browser system, CAVE system, and immersive VR theater. Finally, this paper presents the new direction of networked 3D virtual museum of which main idea is remote guide of the virtual heritage using the mixed reality technique

The Immersive Cockpit System for Cappturing Natural Heritage

Wai-Kwan Tang Tien-Tsin Wong Pheng-Ann Heng

When the damage to a natural heritage is unavoidable, recording the natural heritage before damage may be the only way we can achieve to preserve the heritage in digital format. In this paper, we introduce a video-based tele-immersive system, called the Immersive Cockpit. It captures live videos from the interested site and recreates an immersive environment at the remote site where the user situates. With this system, users/audiences can immerse into the recreated natural heritage even the heritage no longer exists. The design goals of our system are real-time, live, low-cost and scalable. We stitch multiple video streams captured from ordinary CCD cameras to generate a panoramic video. To avoid being blocked by the supporting frame, we allow a flexible placement of cameras. This approach trades the accuracy of the generated panorama image for a larger field-of-view. The panoramic video is presented on an immersive display which covers the field-of-view of the viewer. We discuss how to correctly present the panoramic video on this non-planar immersive display screen by sweet spot relocation. We also present the result and the performance evaluation of the system.

Digital Protection and Restoration of Dunhuang Mural

PAN Yun-he，LU Dong-ming

In this paper, we propose serials of technologies for mural protection and restoration, and describe the architecture and mechanism of the corresponding systems. We first propose the intelligent computer aided mural copy technology and color evolvement technology based on color harmonization. Then we introduce the computer aided mural copy system and computer aided mural protection and restoration system. Finally, we demonstrate our opinion of the future work in the relic digitization, protection, research, recovering and further application.

Digitized World Heritage Protection Methods

HU Wei-xi, PAN Zhi-geng, LIU Xi-zuo, FANG Xian-yong, SHI Jiao-ying

The virtual reality technology born in the late 20th century has brought a new way to the protection of heritages. Combined with current mature digitized processing methods, such as IBR/M, image query and inpaint, copyright protection and cave systems, digitizing all kinds of heritage will play an important role in the future. Concerning the digitizing projects inside and outside the nation nowadays, it proves that using digitization to protect the heritage becomes an inevitable tendency, and this method has a promising future.

Design and Implementation of Digital Archaeology Museum of Shandong University

XIANG Hui, MENG Xiang-xu, YANG Cheng-lei

The design and implementation of Digital Archaeology Museum of Shandong University based on virtual reality and other related technologies is given in this paper. First, the background of this system is given, and we then discuss the contents and techniques of digitization. The structure of the system software is given and the design issues about the subsystems, mainly the relics presentation and virtual scene walkthrough subsystem is detailed. We also discuss the key technologies to build a successful digital museum, especially a digital archaeology museum.

Modeling Techniques for Virtual Exposition

SUN Yuan-hao, GONG Zhen-yu, YU Jian-xin, PAN Jin-gui

This paper introduces the concept of virtual exposition, specifies its software composition and the steps to construct a virtual exposition. Hoping to facilitate the digitization of cultural heritage of the ThreeGorges, we emphasize on the single-image-based modeling technique, with a little prior geometry metric information. To do that, we first summarize the principles of camera calibration from single image and classify several of such calibration techniques, then give an implementation algorithm. Finally, we introduce the modeling techniques based on the calibration result and give some examples and applications.

Underwater Terrain Construction and Visualization

XIAO Bin，XU Hong-fei

Compared with modeling on ground terrain, modeling on underwater terrain is a converse process. It takes a few but valuable data to establish topological structure. This paper introduces a method to describe the edge of original triangle with parametrical curve, and then fractionize the original triangle by fractal according to its interested value. Through research the gapless link of two original triangles is achieved which share same edge and have different interested values. An underwater terrain visualization system based on OpenGL is also achieved.

Study on Key Technique and Application of Outdoor AR System

WANG Yong-tian, LIU Yue, HU Xiao-ming

Augmented Reality (AR) is an important branch of Virtual Reality technology with the features of combining virtual and real objects, real time interactions and 3-D registration. Outdoor Augmented Reality is a new direction in the field of AR research in recent years. The biggest obstacle when constructing a successful outdoor AR system is the lack of accurate tracking techniques in outdoor environment. Key techniques for outdoor AR and its difference from indoor AR are analyzed and recent development and applications of outdoor AR system are summarized.

Imaging Technology of Self-help Photography under Virtual Background

LIU Heng, LI Zu-shu, LI Xue-mei, SHAO Gui-fang, ZHANG Hua

The paper introduces some technologies about self-help photography under virtual background, which include the portrait extracting technology based on tonal clustering of blue background and the threshold acquiring technology based on foregone information. In these technologies, the square graph is drawn from different clustering of the portrait and background, and according to foregone information threshold acquiring arithmetic, they overcome several peaks phenomena produced by environment noise and finish image segmentation favorably and extract the portrait. It is also introduced the image fusion technology based on perception character of contrast, which applies morphological erosion method to form several edge layers of the portrait, and endows them with different coefficients, then fuses portrait with virtual background to produce a new image with reality sense according to these coefficients. The application of these technologies shows that they are compact, effective and robust.

The Research of Motion Control in Virtual Human

XU Meng，SUN Shou-qian，PAN Yun-he

In this paper, on the basis of the analysis and classification of a variety of methods for motion control in virtual human, a clear overall picture of all those methods is provided. It is discussed in the paper the technologies of motion control such as keyframing, procedure method, motion capture, simulation based on physics and their advantages and disadvantages as well. It has a beneficial reference to research and development of some new methods for motion control in virtual human.

Real-time Rendering Detailed Model Based on Normal Maps

ZHANG Hua-qi, WANG Yi-gang

 Approximating complex models with coarse, normal mapped meshes is a very efficient method for real-time rendering of complex objects with fine surface detail. In this paper, we present two different methods to generate normal map for terrain models and general triangle meshes. These methods can fast generate normal maps by making great use of hardware supported functions. For normal mapped simplified models, two real-time rendering methods are presented in the paper, one is suitable for common graphics cards, and the other is suitable for special cards which support PerPixel shading. The results show that our methods can render normal mapped meshes whose original models have around 1 million triangles by 15 frames per second on common graphics cards, and by above 200 frames per second on the special graphics cards, without losing details of original models.

Digital Watermarking and Its Application in Digital Museum

SUN Shu-sen, ZHANG Ming-min, LI Li, PAN Zhi-geng

 Digital watermarking and museum digitization are introduced firstly. Many digital watermarking methods are explored to protect different digital media. Museum digitization brings about copyright problems as well as many advantages. To protect digital cultural relics in different media types, different digital watermarking schemes are required. Due to particularity of relics, embedding watermarking process should not decrease the quality of the digital relics. The adopted 3D watermarking algorithms in this paper embed watermarks on triangle meshes while not decrease the quality of relics models. At last, future works are discussed.

The Exploring of the Motion Capture Technologyin Bianzhong Choreography

SHAO Wei, ZHANG Qian, SUN Shou-qian¹

This papers summarizes Bianzhong choreography and the significance of it's digitizing, simply introduces Motion Capture technology, and analyses the difficulty to digitize the Bianzhong choreography moreover.It focuses on the script design and sensor layout and achieves improvement better than the previous project. It is also shown in the paper the whole frame work of digitizing Bianzhong choreography by the Motion Capture technology.

Simulation of Complex Logistics and It’s Research Status

ZHU Wei-feng，FEI Qi

Complex Logistics (CL) is a netlike logistic chain consisting of several manufacturers, wholesalers and retailers. After giving the structure of CL, this paper analyzes the research status of CL simulation. The general structure of CLSim a tool for CL simulation, is proposed. Three problems of CL simulation for further research are described: (1) modeling the uncertainty in CL, (2) CL simulation model design and implementation, which is made up of simulation policy selection, simulation model construction and simulation programs design and implementation, (3) CL control.

Simulation Analysis for Task Scheduling and Resources Access

of Task/Resource Graph (Ⅰ)

QU Ji-shuang，LI Qun-tang，QU Song-bai²

 The simulation modeling method by Task/Resource Graph has many advantages in analyzing complicated discrete real-time systems due to its abundant time attributes. At first, the Task/Resource Graph modeling method is briefly reviewed, and then task real-time schedule algorithms and resource access control protocols are addressed principally. Priority-driving Preemptable algorithms are the most crucial step to real-time scheduling. It is analyzed in the paper the schedulable condition of RM algorithm in detail. While scheduling tasks, resource conflictions always emerge, which will induce decisive influence on tasks schedulability, therefore it is also analyzed in the paper the resource access control protocols and their effect on task scheduling.

Research on Variable Structure Simulation Modeling

for Wind-Solar Hybrid Power Systems

MAO Mei-qing, YU Shi-jie, SU Jian-hui, SHEN Yu-liang

 The paper presents variable structure simulation models for wind-solar hybrid power systems(WSHPS), including the hardware configurations of the power system and the calculation of output power of all system components. On the basis of the models, the software has been developed under C++ builder environment. A calculating example of WSHPS is provided. The results show that by the use of this software, the operation of the WSHPS with various structures can be simulated so that the main performances can be predicted, such as the matching degree between PV Array, wind generator, battery and loads, the rationality of control strategies, the system efficiency and so on.

Dynamic Modeling and Optimum Simulation of a Flexible Rotor Magnetic Bearing System

SUN Shou-qun, YU Lie

A dynamic analysis model of flexible rotor magnetic bearing system is founded considering gyroscopic effect, damping, axial-radial dynamic couplings and machine-electromagnetism-control system couplings. The standard system matrix vector equations on multi-variable control system are educed. The objective functions are system simulation responses. The optimum operating scopes (points) are obtained by complex optimization methods. The results of optimum simulation are compared with those of experiments and analyzed as well.

Temperature Modeling Study for Gyroscope

ZHANG Guang-ying, DENG Zheng-long, FU Zhen-xian

The structure and features of a Gyroscope’s temperature test system is presented. Using this system, rate and position test about gyro temperature character has been carried out. On the earning data of the tests, temperature static model of gyro has been studied by the two ways of linear regression algorithm and of wavelet network identification. The linear regression algorithm is simpler, and has been used in the practice of project. Wavelet network can approach the nonlinearity of gyro temperature model arbitrarily, and then wavelet network identification can earn higher precision.

Dynamics Modeling and Fuzzy Control of Electric Vehicle

LI Jing-cheng，CAO Bing-gang，KANG Long-yun，YANG Zhong-qing

The drive efficiency of the electric vehicle (EV) is a very important subject in the research of the EV. The EV dynamics model including tyre and whole vehicle is founded in this paper. The drive efficiency of the forward-wheel driving and the retral-wheel driving, single-motor driving and double-motor driving is discussed. Then a novel fuzzy control method is developed to control the driving moments of the double motors. The method can increase drive efficiency of EV when turning around.

WTK Based Kinematical Modeling for Main Machines of Beverage Packaging Production Line

WANG Yong-chao, SUN Jian, Chen Xin-du, HE Han-wu

A new WTK-based kinematical modeling method, using peer models and auxiliary nodes, is put forward for main machines of beverage packaging production line. Its principal is explained in detail when applied to one machine separator. This method can simplify scene graph hierarchy, decrease nodes number, and improve motion synchronization. It is also easy to understand and implement.

The Study on Simulation of Dynamic Characteristic of Rare-Earth GMA

WANG Chuan-li ，DING Fan²，ZHANG Kai-jun²

The giant magnetostrictive material is a new type of function material with giant strain, high response speed, high power density and great output force. In this paper, the structure and principle of actuator with new GMM home made are presented. Its model of dynamic characteristics is established. The simulation model is also constructed by the use of Simulink Toolbox of Matlab. The model^’s dynamic characteristics are simulated. Though a little difference exists, the simulating results obtained roughly match the experimental ones.

The Research on Network Communications of Aggregation Models in the Distributed Simulation

YE Xiong-bing

The network communication is the bottle-neck restricting the expansibility of the distributed simulation. Considering the characteristics of frequent communications and much more information to be interacted of the aggregation models in the distributed simulation, this paper studies the information interaction protocol and interaction mode, then puts forward a method, which uses the variant-length interaction protocol and dead reckoning arithmetic, to reduce the interaction. The experiment proves that it is a good method to resolve the bottle-neck of the information interaction.

An Optimality Algorithm for a Class of Closed Queuing Network

by Using Oblivion Factor

ZHOU Ya-ping, YIN Bao-qun, XI Hong-sheng, TANG Hao²

 In the optimization of service policy for closed queuing networks, the method of optimizing policy that is based on single sample path of the systems is of practical interest. But in simulation-based optimization, overmuch simulation number of times is an important reason of reducing optimization speed. This paper suggests a new method which applies oblivion factor and uses the information that is taken from simulation of old parameter, and thus can enhance the speed of optimization evidently.

A Kind of PID-Typed Fuzzy Neural Network Controller

WANG Yin-song，Liu Wu-lin²

In order to realize the self-learning ability of a kind of PID-typed fuzzy controller designed only using two-dimension rule base, we design a five-layer fuzzy neural network which contains a self-recurrent neuron and propose the weights correcting method of all its layers on the gradient descent algorithm. This network can be used as a self-learning controller in the feedback control system. It is also given and proved the convergent theorem of the weights learning rate in the network based on the relative theorem.

The Study on the Finite Element Calculation Method of the Stress State of Thin Slab during Continuous Casting in Solidifying Process

CHEN Deng-fu, LIAO Qi, BAI Chen-guang, LIU Qing-cai, DONG Ling-yan, WEN Liang-ying, FENG Ke

In this paper the finite element calculation theory and method are studied for the two-demenion thermal elasto-plastic and creep stress model of the solidified shell in the solidifying process of thin slab. The finite element calculation method is discussed when the triangular units are adopted. And the automatic dividing and numbering principle, order and method of the mesh points and its units are studied for making the half bandwith of non-zero elements in the stiffness matrix of whole body smallest both before and after the whole solidification. The method realizing the elements storage in the half bandwith is developed while adopting the technology of changing half bandwith compressing storage. And the method solving the equilibrium linear equations is researched using the corresponding direct triangular disassembling method. The results of the mesh-point equivalent loads changed from the thermal stress and the thermo-creep stress are presented using the original load method. The studying results in this paper have been successfully applied to the stress state analysis of the solidifying process of thin slab and billet in continuous casting.

Analysis and Design of Rendering Software Based on Vega

LI Jun, WANG Shao-di, CHANG Jian-gang, SUN Zhi-xin, WANG Ru-chuan

 In this paper analysis and design for developing rendering software based on Vega are presented in detail step by step from many aspects such as analysis and design of object-oriented software, elements of reusable object-oriented software and core mechanism of Windows etc, and finally a proper general solution is given.

Adaptive Robust Tracking Control of Hydraulic Serve Parallel Robot

JIAO Xiao-hong，GENG Qiu-shi，FANG Yi-ming，LI Yun-feng

By constructing an appropriate storage function, an adaptive robust tracking controller is designed for the hydraulic serve parallel robot with uncertain parameters and external disturbance. L₂-gain from the disturbance to the penalty signal is not larger than any given level by the penalty signal chosen. It is shown that the resulting closed-loop system has the adaptability for the varying parameters and can asymptotically track a desired trajectory. The simulation results demonstrate the effectiveness of the proposed method.

A Research on Representation for Structural Dynamic Response

WU Wei-yu, PAN Peng, FANG Qing-zhou

In order to represent the result of structural dynamic response simulation analysis better, we are researching on taking advantage of the new method for simulation representation that combines both multimedia representation technology and engineering structural analysis algorithm. In this paper, it is presented how to get optimum representation results using the volume rendering, rendering algorithm for structural deformation, representation method for quantitative data, fast rendering and method to generate continuous simulation scene, especially using the combined method mentioned hereinbefore. The practical effect using the method proposed in this paper in simulating reinforced concrete frame structural dynamic response under seism is illuminated in detail. The efficiency of this method is verified. Simulating experiments are carried out on PC, which are based on Windows 2000 operation system and use OpenGL as developing tools, exhibits the broad prospect of using and developing multimedia simulation technology.

Research and Implementation on Simulation of Missile Flight-Attack

DONG Guang-bo, MA Li-yuan, ZHANG Xi-en, LIU Peng-yuan

Controlling real time missile model’s flight orientation, action and special effects according to missile flight procedure and external environment influence is the key point of missile flight simulation. Based on the research on the real-time measuring data of missile flight trail and special effect, the paper takes the real-time measuring data as the database of flight status, applies inference rules-based method to controlling event flow, and implements accurate simulation of missile flight-attack by Vega-Creator-VC++ simulation developing platform. It’s presented a program resolution of controlling missile’s orientation, action and special effects exactly in the whole flight procedure, with good real-time characteristics.

The Methods for Real-time Graph Display in Galaxy Simulation Workstation

JIANG Zhi-wen, YAN Lai-bin, YAO Yi-ping

In semi-physical simulation, some parameters need to be examined and some curves about the parameters need to be displayed. However, in some simulations, graphical displaying in local simulation workstation is too long to meet their real-time performance. So two methods of remote real-time graphic display in Galaxy Simulation Workstation are introduced, which are realized through D/D and real-time network. Finally, two experiments with the two ways show that they can be used for real-time graphical display in semi-physical simulation.

Design and Implementation of Scenario Editor of the War Game

Simulation System of Air Force

LI Qun, YANG Feng, ZHU Yi-fan, WANG Wei-ping

 This paper introduces a scenario editor which can be applied to war game simulation system of Air Force. The editor is composed of virtual battle space generator, weapon information management, and mission planner. Based on the model class built in Sim2000, the digital battle space object and environment can be established in the battle space generator of the editor. After the virtual battle space is finished, analyst can make mission plan in this virtual battle space. Finally, this paper gives an implementation of the scenario editor.

A Multicast Group-Based Strategy of Advancing Time of Federation

ZHONG Hai-rong，WANG Zhao-fu，JIN Shi-yao，LIU Xiao-jian

 Connecting time management with data distribution management of Run Time Infrastructure(RTI), a multicast group-based time-advancing strategy is proposed to avoid current “too conservative” strategy for computing Lower Bound on Time Stamp (LBTS). Its three approaches namely static one, dynamic one, and extended dynamic one, are given. In this strategy LBTS is computed only according to partial information of multicast group, and optimistic synchronization is used to overcome impossible disorder due to dynamic multicast group. The strategy can decrease the overhead and delay for computing LBTS. Its improvement and applicability are discussed as well.

Simulation Technology of the New Naval Gun Integrated Fire Control System

CHENG Jian-qing

The paper briefly describes the inevitability and features of developing the new naval gun integrated fire control system based on analysis of the requirement for developing naval gun fire control system of the future naval war and the status quo of naval gun fire control system. It then introduces the purpose, composition and function of a semi-material simulation system developed for demonstrating principles of the system, and in this introduction it focuses on mathematical models of the simulation system. In the end, it gives an expectation on how to apply these simulation technologies to the whole process of system development.

Vessel Noise Simulation of Towed Sonar

ZHANG Ming-min, WANG Ping-bo, TAN Liang

 Based linear prediction technology, this paper applies the algorithm that fits the assigned power spectrum with AR model to model and simulates the part of vessel noise with stable and continuous power spectrum and the other part with time-variable power spectrum respectively. Lots of point sources are introduced in the simulation of vessel noise source. According to their spatial positions, these point sources and their mirror images created by the first reflection from sea surface and bottom are delayed and added to generate the received vessel noise by towed sonar array.

Parameter Distributing Technology of Distributed Flight Simulation System

WU Zhi-feng，TANG Shuo

This paper studies in detail the naming principle of published or subscribed parameters of simulation models in a distributed flight simulation system, analyzes and illustrates the composing characteristics and constructing algorithm of the published, subscribed or self-subscribed parameter area. Based on these technologies and the shared-memory mechanism, a distributed flight simulation application system can be implemented by means of sharing transparently the model parameters among system nodes.

Research on Electromagnetic Simulation for UAV Focused on Environment Applicability

SONG Zu-xun, YU Bian-zhang, YE Feng, ZHAO Jian

UAV (Unmanned Air Vehicle) is confronted with the tremendous threaten along with depravation of EME (Electromagnetic Environment) increasingly. Unfortunately, in the open literature, it is failing to find detailed information about Electromagnetic Simulation for UAV. On condition of analyzing the electromagnetic signal encountered by UAV, an electromagnetic simulation technique of half-practicality is studied, which is combined with electromagnetic environment database, mission programming in flight and focused on environment applicability. Some available electromagnetic simulation methods, i.e. antenna-port-injection and conducted injection, are put forward in accordance with the reality that antenna-ports and airborne-cables are feeble to electromagnetic threaten in UAV. These methods reduce the demand to simulation equipment and test site, and overcome the drawback that the various dynamical electromagnetic threaten in flight could not be simulated in full practicality system.

An Innovative Technology of Distributed Control System Integration for Unmanned Aerial Vehicles

XU Jin-fa

Autonomous flight control system of Unmanned Aerial Vehicles (UAV) is a complex control system. Integration of new control algorithms with a variety of different component technologies and resources is required. These components may come from different types of hardware platforms and are supported by different operating systems. Components distributed on different environment may be configured and integrated flexibly. The rapid online reconfiguration and adaptation to react to environmental changes and respond to unpredictable events may be carried out. Recent advances in software technology have the potential to revolutionize flight control system design. This paper focuses on introducing open software architecture, called the Open Control Platform (OCP), for integrating control technologies and resources of UAV. After a prototype Open Control Platform is illustrated, and two ongoing works using OCP technologies are listed.

Simulation Experiment of Target Recognition-Based On Multiple Classifiers

JING Zhi-hong¹, ZHAO Yi-hong², CHENG Guo-hua², LIU Zhen-xia¹

Underwater target recognition is important to the national economy and defense. In order to improve the reliability and validity of multiple classifiers, a new weighting algorithm based on the output vectors of the classifiers is presented in the weighted voting scheme. Ship radiated-noises’s classification experiment reveals that multiple classifiers fusion based on this algorithm can effectively enhance the performance of recognition and improve the reliability of the classification results by making choice of the voting threshold. This classification algorithm may have an important application value in underwater target identification.

The Measure of Air Leakage into Vacuum System of Steam Turbine

with Soft-Sensing Technique

LI Yong, ZHANG Rui-qing, CAO Li-hua

To counter the problem that there is not a good method to directly measure the quantity of air leaked into the vacuum system of steam turbine, it is proposed in this paper the soft-sensing technique for the measure of air leakage into vacuum system based on vacuum system tightness test of steam turbine and combined with BP neural networks. This method takes the rate of the vacuum down and the operating parameters of condenser as input of BP neural networks. And takes the quantity of air leaking into the vacuum system of steam turbine measured by the conventional method as output of BP neural networks. By training the BP neural networks, the soft measure method can be realized. The simulation results prove that this method can accurately measure the quantity of air leaking into the vacuum system of steam turbine.

The Design and Realization of Simulation System for the Central Office’s Postal Communication Network

HUANG Wei-dong，ZHAO Hong-bo

In order to optimize the postal communication network organization of the center office and cost management level, the paper starts from the analysis of postal communication network’s optimized matching of time limit and cost as well as some affecting factors. Then the paper designs the simulation system of postal central office’s interior processing management and dynamic control, and provides the accordance for the realization of optimizing central office’s network organization and management capability via the simulation and appraisement of the business disposal, operating manner and management mode in the simulation models.

Dynamic Simulation of Household Refrigerator-Freezer

DING Guo-liang，ZHANG Chun-lu，LU Zhi-li，SHEN Yu-gang

The components of a refrigerator-freezer are divided into fast-response and slow-response models. According to characteristics of fast-response and slow-response models, the components’ models are decoupled and calculated quickly. In order to make the simulation program calculate quickly and accurately, the method of adaptive variable time-step is adopted. The simulation results are compared to the experimental results, which shows that the simulation results are reasonable and that it can be used to analyze dynamic characteristics of refrigerator-freezers.

The Simulating on Neural-net based Controller of BLDCM

JIANG Wei-dong, WANG Qun-jing, CHEN Jun, XIAO Ben-xian

 In this paper, a novel nonlinear artificial neuro-controller is proposed for controlling the speed of BLDCM in the environment of high-performance drives, such as carvers. In this environment, if PID controller is used, there must be error brought by the disturb in parameters. A double neural network system is used, one for identifying the parameters of the system, and the other for regulating the terminate voltage of BLDCM. An adaptive weight update algorithm is proposed in this paper by changing the sampling frequency. The result of this control method is satisfied in simulation based on Matlab and Simulink. By reducing the amount of calculation, this method can help the online realization.

T