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The concept and technological composition of aircraft assembling process oriented assembly field is presented, its key technologies are explored respectively, the assembling process database is built based on Oracle system, the method and the procedure of assembling process simulation and optimization are formulated, and the visualization technology concerned with all kinds of assembling process information...
The design and implementation of data integration and sharing for crop germplasm resources investigation are vital to optimize and utilize efficiently crop germplasm resources. In this paper, we summarize the different traditional data integration technologies and technical features, analyze the architecture of enterprise service bus (ESB) based on middleware technology, and implement an ESB-based...
Physically-based cloth animation has been a hot topic to the graphics community for more than a decade. Among the physically-based models used in cloth animation, elastically deformable models have been used successfully in order to give a representation of the behavior. We present a novel PCMS (Predictive-Corrective Mass-Spring) algorithm in cloth simulation which combines the advantages of both...
Aimed to the measuring problem of steam consumption in Dyeing process, a multiple neural network soft sensing modeling of Dyeing steam consumption based on adaptive fuzzy C-means clustering (FCM) is presented. The method is used for separating a whole real-time training data set into several clusters with different centers, and the clustering centers can been modified by an adaptive fuzzy clustering...
Cellular Automata (CA), characterised by its massive parallelism, constitutes a powerful tool for modelling and simulating complex systems. And CA has been applied successfully to very large scale integration (VLSI) fabrication processes. In this work, a solution has been developed, which handles the complicated boundary and initial conditions imposed by the advancement of the Si-SiO2 and SiO2-air...
In order to solve the NP-hard problem of crane scheduling, a simulation method of crane scheduling in workshop of steel-making plant is presented based on the multi agent system (MAS). According to the characteristics of crane scheduling, a MAS-based model for simulating crane scheduling in melt shop is built. The scheduling system mainly includes crane agent groups, work station agent groups and...
In this paper, a new kind of the yarn online detecting instrument is designed. The principal and the hardware structure of the detecting instrument for the yarn quality are introduced. The yarn diameter information by the high accuracy intelligent laser sensor is gathered using the computer control technology and the programmable logic controller (PLC) control is adopted, through the analysis to the...
This paper introduces the method of on-line measurement of the yarn evenness using double CCD image sensors. The double sensors are mounted on a movable bracket of the small car. The obtained yarn coefficients of variation in the diameter through computer and digital image processing techniques are compared with those of using off-line USTERII evenness tester. Meanwhile, the CCD sensors, avoiding...
Wireless control technology plays an important role in the field of enterprise's industrial control. A novel system of wireless industrial control network is proposed: Ethernet is adopted in administration network and field bus network in device layer, heterogeneous network structures and protocols in upper-and-lower layers are interconnected with protocol conversion gateway. The network's structure,...
Based on the basic principle of cold forming, a dynamical node calculation model is established by spline finite strip method. Uncertain factors and specialist experiences in roll forming process are informationized highly to establish Multi-intelligence Agents. Then the dynamic task can be solved by intelligent Agent, which is more reasonable for dynamical node deformation. This work can provide...
The existing RP(rapid prototyping) related software include a CAD module, a data processing module, and a monitoring and controlling module, which are independent of one another. Aiming at the issues above, this thesis picks-up the interior topological and geometrical information of model expressed in the boundary representation (B-Rep) using the development tools of ObjectARX and MDT(Mechanical Desktop)...
A function module composition for copying manufacturing oriented complete software type CNC system is proposed through analyzing basic features and present research technologies of digital copying manufacturing control system. Based on the hardware platform of IPC, a complete software type digital copying CNC system is designed. Components selection and control principles of the control system's hardware...
According to the engineering demands of the manufacturability evaluation, the blade part information model built up based on the generalized feature and STEP standard, and based on the secondary development of UG software, a CAD system based on features is realized. The system can realize automatic feature recognition. Based on the part information model that has been built up, the system can generate...
It is difficult that all the users are requested to keep real-time synchronous design in current CAD collaborative design systems. With the aim to solve this problem, a new asynchronous CAD collaborative design model is presented in this paper. The model extracts and merges the CAD graphic information via API. The recognition of users' design work and the incremental transmission of design files are...
Coal mine water inrush is a very difficult problems which should be solved more earlier, and it have long plagued safe production of coal mines. The reliable operation of coal mine drainage systems plays a vital role in safe production of coal mines. Based on the non linear relationship of the state parameters of the coal mine drainage facilities, we propose a safety monitoring method based on BP...
A dairy inbreeding intelligent decision terminal system based on PDA is proposed to carry out dairy breeding, firstly, the dairy inbreeding coefficient is estimated according to the Latus Rectum Theory, Then the best bull with the smallest inbreeding coefficient and descendants of the genetic traits is predicted to realize high-quality dairy breeding, This system use RDA technology to realize the...
This article introduces a new method called Envelope Surface Model to establish 3D geological model of Surface mine fast, aiming to simulate 3D visual mining in surface mine. Firstly the method based on the establishment of 3D terrain Model and the 3D geological model of surface mine. The mining template is determined by actual production situation of surface mine, and realizes simulating surface...
Simulation plays an important role in researching, developing and testing Integrated Circuit (IC) manufacturing equipments. It is possible to test most of the functions and performance on simulation platform, and simulation platform can be used to verify the consistency of the process and the reliability of IC manufacturing equipment at the same time. In order to achieve a class of general and configurable...
Based on the knowledge rule models and the analysis mathematical models, the two-level real-time expert control system (ECS) was established. With the self-learning ability in expert optimal mode, the expert system (ES) was developed to find the calcining zone's optimal temperature value. To optimize the process, the real-time control system (RTCS) was designed to realize the control of the feeding...
This paper analyzes the materials flow, information flow, payments flow and returned items flow of supply chain management firstly. Then the paper discusses the key supply chain management processes in SCOR (Supply Chain Operations Reference model) which is supported by SCC (Supply-Chain Council) and analyzes the use of information quality in SCM. At the same time, the paper studies the main functions...
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