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According to the present status of artificial recognition of spinneret codes, an automatic recognition system for spinnerets was given. Firstly the spinneret with binary codes and the automatic system which can recognize it were designed. The system was structured on LabVIEW. In term of the characteristics of spinnerets coding, the spinneret recognition process included the import of spinnerets codes,...
In fail-safe computer systems, such as railway signaling systems, the outputs directly drive some vital units. Once they happen in error, there will be some injuries, even losses or damages. In order to improve the reliability and safety of fail-safe computer systems, in this paper, we innovatively design and implement two kinds of 2-out-of-3 voters: the dynamic voter and the static voter. The former...
Automatic Train Protection (ATP) system is a safety-critical system; it is widely used to ensure trains running safely. During its development lifecycle, there are many safety problems which are derived from the requirements. In order to make descriptions of the requirements accurate and consistent, we introduce requirement models in the development lifecycle. The requirement models are built based...
Moving target segmentation which is an important research subject in many fields, such as artificial intelligence, industrial monitoring and human-computer interaction, the research of moving target segmentation algorithm in video sequence has vital academic significance and practical value. This paper introduced Markov Random Field theory into image sequence target segmentation process which is based...
The technology of reducing yarn hairiness using air-jet nozzle on the winder (JetWind) is a combination of the ring spinning and air-jet (vortex) spinning technologies. A dynamic model for the coupling between the ramie yarn hair and the airflow field inside the hairiness-reducing nozzle on the winder is developed in this research. Based on the model, computer simulation of the dynamics of the hair...
The motion law of the rapier and the characteristics of rapier loom's weft-insertion mechanism were analysed. According to the special requirements to loom's weft-insertion mechanism for weaving three-dimensional fabric, a new rapier weft-insertion system was designed. The weft-insertion system with computer-controlling and servo-cylinder driving was applied to control the rapier's movement on the...
This study develops a new type AOD converter temperature measurement system. We transmitted light ray by the gas path of sub-lance without additional optical unit. This system introduced two-color near-infrared non-contact measurement. It eliminated errors caused by dusts or any other interfering factor. This system improves the temperature measurement accuracy greatly, and calculates the end point...
The new type of conductivity meter uses the square wave excitation. We selected the scope of sampling band unaffected by polarization and capacitance from the half-period of square wave. We obtained the voltage signals during the period of the selection, and removed the signals during other periods, thus achieved the more accurate conductivity values. The meter utilizes thermostat to control temperature...
This paper investigates the synchronization behavior of a class of mobile agents based on the Vicsek's model. It is well-known that the connectivity of the dynamical neighbor graphs is important for synchronization of the model, but such a connectivity is defined by the system trajectories, which, in turn, are determined by the model parameters and the initial configuration of all agents. We will...
Natural scene simulation is always a hot issue in computer graphic. This paper aims at the physically-based simulation of smoke on graphic processing unit (GPU). The subject is on the background of an actual project. The simulation is based on the Stam's semi-Lagrangian scheme; MacCormack scheme is used to solve the advection item of Navier-Stokes (NS) equations, and ray casting method is chosen to...
Automated sea route design is an important part for the application of electronic chart. An elasticity algorithm based on the grid chart environmental model is brought forward to search the shortest safe sea route automatically by making full use of the adjacency of the grids. The algorithm has the advantage of good stability, briefness and high searching efficiency. The experiment results show that...
The volume of ocean environmental data is extremely massive, which makes it inefficient to manage them in standard ways. This paper promotes a new method to handle this problem. It presents a non-standard method that stresses on query-oriented organization of the data. Then it describes in details of the distributed management of the data based on the new relation schema design. The method has been...
Transportation management and planning has played an important role in urban planning. The paper discusses the success of using virtual reality (VR) technique in traffic simulation to communicate design alternatives to decision makers and public audiences and thus to support the decision making process. The study documents the application of VISSIM, a microscopic simulation model, VR4MAX, an interactive...
A connection bridge for connection of two CPU systems in SoC of the HAB (healthcare apparatus on body/bed) in home healthcare wireless network is addressed. Multi CPU system in a SoC could be divided into different part according with data process function. Therefore the each part of the system can work independently without influence each other. With the discussion of the performance of HAB and home...
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