Materials, Mechatronics and Automation

Volumes 467-469

doi: 10.4028/

Paper Title Page

Authors: Bo Li, Jian Luo, Jin Fa Zhuang
Abstract: Interactive influence diagrams(I-IDs) offer a transparent and representation for the decision-making in multiagent settings. In I-IDs, for the sake of predicting the behavior of other agent accurately, the modeling agent starts from an initial set of possible models for another agent and then maintains belief about which of those models applies. This initial set of models in the model node is typically a fully specification of possible agent types. Although such a rich space gives the modeling agent high accuracy in its beliefs, it will also incur high cost in maintaining those beliefs. In this paper, we demonstrate that we can choose a minimal, but sufficient, space of mental models by combining models that action or utility equivalence. We illustrate our framework using the two-tiger game and provide empirical results by showing the minimal mental model spaces that it generates.
Authors: Ling Hui Yang, Ji Gui Zhu, Bin Wu, Xue You Yang
Abstract: A novel workspace measurement positioning system based on optical scanning and wireless sensor network is presented in this paper. Coordinate measurement principle through angle intersection is detailed discussed. According to analysis of system requirement, a Zigbee wireless sensor network is designed for data transmission; routing algorithm and flowchart of nodes software are also given. A platform consists of two planar laser transmitter and optical receivers is set up for verification. Experiments result demonstrates that the accuracy of new angle measurement method is better than 1mm.
Authors: Peng Fang, Yong Sun, Yan Nian Rui
Abstract: In color digital jacquard CAD system, the design of the color schemes is both significant and challenging. This paper mainly deals with how to design the jacquard scheme for each color in standard 256 color table with the given 6 different yarns. The features of the color schemes designed in this paper are as follows: 1. Manual operations are avoided in the process of yarn color selection; 2. Engineering difficulties are reduced through lessening the number of the yarns used for the weft; 3. The back side of the jacquard products is no longer in a mess; 4. With only a few changes, the color schemes in this paper can be comfortably applied to the present jacquard machines. In this way, we can not only improve the production efficiency, but also broaden the application market of color digital jacquard technology.
Authors: Qun Niu, Fang Zhou, Tai Jin Zhou
Abstract: This paper proposes an adaptive clonal selection algorithm (CSA) to solve the unrelated parallel machine scheduling problem (UPMSP) with sequence-dependent setup time constraints. The objective is to find the sequence which minimizes the makesepan. CSA is a newly discovered population-based evolutionary algorithm based on the clonal selection principle and the immune system. In order to improve the performance of CSA, a local search operation is adopted to strengthen the search ability. In addition, an adaptive clonal factor and a stage mutation operation are introduced to enhance the exploration and exploitation of the algorithm. The performance of the proposed adaptive clonal selection algorithm is compared with genetic algorithm (GA), Simulated Annealing (SA) and basic CSA on 320 randomly generated instances. The results demonstrate the superiority of the proposed method and confirm its potential to solve the UPMSP with sequence-dependent setup time constraints especially when the scale of the instances is very large.
Authors: Kai Zhang, Xia Zhao, Zhi Hong Zheng
Abstract: This article introduces a harmonic detection device based on ARM/ DSP. This device uses DSP technology to analysis the harmonic wave in the power system by using complex sequence fast Fourier algorithm, and realizes the power system harmonic on-line detection with the strong control function of ARM module. It overcomes the inconsistency of the time sequence in communicating between DSP and ARM, and solves the synchronous sampling problem of each phase voltage for data acquisition module. In the program it mainly solves the HPI interface of data communication problem between DSP and ARM. Practical applications show that the device can rapidly and accurately detect characterization of power quality, and realize the telecommunication of the power grid data. It can detcet data accurately and reach the level of practical applications.
Authors: Guo Jie Shi, Gang Zheng, Min Dai, Shan Ling Mou
Abstract: Key techniques were proposed in printout electrocardiogram (ECG) digitalization, which were composed by image edge detecting, angle adjusting, and ECG waveform extracting, de-noising, scaling, and saving. The requirements of digitalizing procedure contained ECG amplitude accuracy rate, heart rate counting, and morph changes. Experiments showed that the key techniques can preserve the fatal features and parameters efficiently, precisely, and automatically. The accuracy rate of waveform amplitude reaches 95%, and heart rate of that reaches 98%. The results satisfied the clinical requirements, and can be used for network medical service.
Authors: Di Fan, Mao Yong Cao, Lax Misha Rai
Abstract: Gabor transform suitable for time-frequency analysis and good for filtering non-stationary signals. The threshold of the Gabor transform filter is a key factor for the filter’s effectiveness. The popularly used threshold obtained by linear method is not suitable for non-stationary signals with low signal to noise ratio (SNR) because, it cannot separate the expansion coefficients of noise and useful signals. In this paper, a novel method to identify Gabor transform filter’s threshold based on initial highest inter-cluster distance probability is proposed. Simulation experiments have been carried out under several conditions. The experimental results show that the proposed threshold is highly suitable, especially when the signal’s SNR is very low and the filter output is very consistent to the real original signal and keeps no pseudo signal in zero regions.
Authors: Fei Zhou Zhang, Jia Zhou Geng, Peng Cheng
Abstract: Aimed at the great demand dealing with our natural disaster, it is important to carry on integrated technologies like satellite navigation and positioning monitoring, embedded geographic information system and sensing technology etc. Also, to accomplish the seamless connection with nation’s disaster assessment system in various environments when the communication links are clear and accurate, to realize the disaster information obtained quickly and shared rapidly together with the reliable orientation navigation provided by the disaster terminal users and quick inquiry and effective adjustments for relief workers or relief supplies. Above integrated technologies have set a technological foundation for national disaster relief command system, which is of great importance when considering enhancing the ability for national emergency relief.
Authors: Wen Lun Cao, Bei Chen, Yu Yao He
Abstract: In order to realize the performance test and analysis calculation of 250mmHe-Ne laser, the data collection and processing systems based on ARM STM3210 are designed. This paper expounds emphatically the design of real-time display control software, and introduces the function and key technique of system software. We define the file format to ensure the memory consistency of different experimental data so that the data could not be modified readily. The realization of different functional classes guarantees the reusability and reliability of code, meanwhile the double buffer technology eliminates the gleams phenomenon successfully when the computer screen refreshes.
Authors: Wen Lun Cao, Bei Chen, Yu Yao He
Abstract: The I/O performance test system of inverter is designed. ADlink PCI board and signal regulating panel are core of hardware platform. The software uses the mixed programs, that is, the graph control of Labview and Microsoft Visual C++. Based on the eight analog inputs, two analog outputs, three digital inputs and four digital outputs provided with specific application, we fulfill the following assignments: the dynamic monitoring of three-phase input current/voltage, DC-bus voltage and actual rotation speed, curve drawing and data storage. The computer could give the enable signal and analog speed of inverter, besides the failures are read and displayed. Finally the harmonic analysis and the balance analysis of three-phase current/voltage are realized.

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