Applied Mechanics and Materials Vols. 599-601

Abstract: Industrial wireless technology is another hot technology direction after the field bus and industrial Ethernet technology. Therefore, it is particularly important to evaluate the performance of wireless networks. In this paper, based on IEEE802.15.4 standard wireless network as the research object, a wireless network performance test device is developed and the testing platform is set up. By testing for industrial wireless network control system, such the throughput, packet loss rate of the token cycle, control cycle, as performance indicators are obtained. It provides the powerful basis to improve the performance and evaluation industrial wireless network.

Abstract: Information fusion technology is one of the most active research areas currently, which is affected by the fact that the computer can only handle quantitative information and the result cannot reflect the actual feature of the target sometimes. This paper makes use of advantages of the vague set in dealing with uncertain information process to establish the target threat sequencing model based on vague set and take both quantitative and qualitative information of target into account. Using the improved scoring function, this paper comes up with the target threat sequence steps based on extreme score function method to provide a better data supporting for the decision-making function of information fusion technology.

Abstract: The IEEE802.11 protocol proposed the CSMA/CA mechanism [1] which is more adjustable to the application of the wireless channel based on CSMA. This article will analyze the property of the traffic in the multi-hop wireless network, give the definitions and the migration relationship of four channel states, provide a model for the traffic of the nodes and describe the relationship among the part of the parameters based on the IEEE802.11 protocol.

Abstract: In order to implement the mapping between XML documents and relational database, this paper proposes the mapping method based on XML documents and relational database. On the basis of keeping documents ’hierarchy, order and uniqueness, this method can mapping XML documents to the corresponding relational database very quickly and implement the reconstruction of XML documents.

Abstract: We propose a method of clouds simulation to simulate the clouds dynamics based on the change of sight distance in the paper. With the change of sight distance, the grid resolution of simulation space can be adjusted. Euler equations which describe the movement of clouds are discretized on the dynamic grids, and upwind difference is introduced to ensure the stability of simulation. Cornette-Shanks phase function is embedded into the multiple forward scattering model. The experimental results show that the proposed method can promote the rendering efficiency and achieve real-time rendering of clouds.

Abstract: This paper mainly studies the single distribution center in the circumstances, transport path selection and vehicle allocation problem of small batch of goods. Using the theory of minimum spanning tree theory to the entire logistics network path selection research, while determining the nodes need to configure the transport vehicle for shunt transport, further establish the logistic distribution routing out several cars choice model, but also provides a direction for future research on this type of problem.

Abstract: Home Area Networks can be implemented via both wired and wireless solutions. Smart meter performs power or electricity metering and has the capability of transferring key meter data via wired and wireless sensors. The proposed solution provides a seamless connectivity between ZigBee and Power Line Communication networks to reap benefits from their respective advantages. Since these two technologies are complementary media, the combination is more suitable for smart meter to meet different requirements.

Abstract: Micromouse is a small autonomous robot, which must navigate itself through an unknown maze from the start to the destination. The main challenge for micromouse is to solve the maze information after searching and find the optimum path. In order to ensure the correctness of maze information, software for micromouse navigation in some special position was designed.

Abstract: Micromouse is a small autonomous robot, which must navigate itself through an unknown maze from the start to the destination. The main challenge for micromouse is to solve the maze information after searching to find the optimum path. Normally, the micromouse has to remain in the centre of the cells when traveling in the maze, In order to ensure the correctness of position, detailed design of software for micromouse navigation in straight path was designed.

Abstract: To Evaluate SRM effectively, according to the structure characteristics of solid rocket motor, the series of solid rocket motor ICT images were processed with edge detection ,edge thinning, contour tracing, contour segmentation, and contour fitting. The raster images were converted to vector images which can be recognized by the CAD modeling software. Then, according to the vector images, SRM was modeled by the software, and the model was studied with finite-element analysis. The experimental result indicates that the quality of the model is good, and the result of the finite-element analysis can reflect the state of the experimental SRM.