Advanced Materials Research Vols. 1006-1007

Abstract: The design program of Vehicle Display and Control Terminal was introduced, it was based on the Embedded Linux which developed on the MPC5121e hardware platform. Through kernel cutting and transplanting of the Embedded Linux operating system, and transplanting the new generation of the Altia Designer to the MPC5121e hardware platform, the graphical user interface software of Vehicle Display and Control Terminal was developed successfully.

Abstract: Design a single-phase / three-phase transformer designed for voltage detection unit of 400Hz frequency ship converter excitation regulator. Transformer has asimilar structure to AC motor, but the rotor is fixed, a single-phase AC power pass into the rotor and three-phase alternating current generated in the stator side. The transformer is used to the detection circuit of voltage regulator , so that the filter capacitor can be reduced, thereby reducing the latency of signal feedback and improve the response speed of the excitation regulator. The experimental results show that, the transformer has obvious effect on improving the response speed of the circuit.

Abstract: The driver IC is a core device to achieve switching and display control function for the liquid crystal display panel, and high definition is one of the important development directions. There are special requirements in IC design, manufacturing, and downstream packaging and so on. Some key issues in the design and manufacture process, such as the high frequency input interface, the voltage conversion, data conversion, ADC and operational amplifier, low power design, EMI and ESD protection, are discussed for the high resolution panel driver IC. The trend and development in the near future are also forecasted at the end of the article.

Abstract: Power load forecasting is an important part of management modernization of power system. Accurate load forecasting can provide reliable guidance for grid operation and power construction planning. For load forecasting "small sample", "poor information", "uncertain", "non-linear" and other features, In this paper, GM (1.1) model was improved in the gray system theory, by constructing the background value sequence to transform the original data, using gray rolling GM (1.1) model and combining Markov prediction model to make power load forecasting. The application results show that this method is accurate and practicable.

Abstract: During maintaining the breakdown of the Trace Hotbox Detection System and the Automatic Train Identification System,to solve the problem of whether good or not depending on a train passing, a multi-purpose singal producer which simulates a train passing is developed.It can produce many kinds of trigger singals and fit the velocity conditions.

Abstract: In this paper we reconfigure the input boundary-scan register to an operable test pattern generator that provides test patterns to the logic circuit for a predetermined number of clock cycles upon receipt of the built-in self-test control signal. The output boundary-scan register is reconfigurable to operate as an output response analyser that is driven by the logic circuit for the predetermined number of clock cycles upon receipt of the built-in self-test control signal. A family of input and output boundary-scan cells that can be reconfigured as a linear feedback shift register and as a multiple-input shift register is disclosed.

Abstract: Because difference of formation model affects the potential distribution on the metal casing, the resistivity logging response can be obtained through casing by measuring the potentials on the metal casing. In fact, the logging responses are the comprehension effects of complex formation and metal casing, so that in the coefficients of transmission line equation (TLE), we should consider the effects of formation model in radial-direction. In the following, for the formation taking on six-layer in axial-direction, and step in radial-direction, the resistivity logging responses through casing are researched and discussed, and given the recurrence formula to compute potential. Draw the curve of the resistivity logging response through casing of six-layer formations. The conductivity of formation is computed is very approximating to that of formation model. The computing examples also show that this method has a fast computing speed (the run time of computing example is less than 1s). For analysis the logging response of six-layers and block formations, and the design of logging instruments, the research is important significance and useful.

Abstract: The electromagnetic (EM) shielding sheets,ferrite materials, ofen sandwiched between NFC (Near Field Communication) tag and metal to increase its detection distance. However, the addition of this ferrite materials could affect the NFC antenna other performance at the same tine, especially the impedance and working frequency. In this paper and investigation, we proved that ferrite materials have an abvious influence on NFC antenna impedance and working frequency via HFSS and ADS simulation. When the real part of permeability of the EM shielding sheet changed from 90 to 150, the working frequency drifited from designed working frequency 13.56 MHz to 12.87 MHz as the rapid increasing of antenna port impedance. Using Magneto-Dynamic Analysis,the corresponding explanation is given.

Abstract: As a result of ship’s corrosion and anti-corrosion in shallow sea, the static electric field and static magnetic field can be produced around ships, which are referred to the static corrosion-related electromagnetic field. In order to analyze the field characteristics, a static horizontal electric dipole which is located in shallow sea is usually adopted to simulate the field. So,the electromagnetic field distribution of the electric dipole is very important because it is the base of analysis. In this paper, some research has been performed on the electromagnetic field of an electric dipole in three-layered conductive media. At first, equivalent source method has been used to derive the distribution expressions of the electromagnetic field in seawater. Then numerical simulation method has been used to do a contrastive analysis of the distribution characteristics of the electric field and magnetic field. At last, some experiments have been done in laboratory to prove the correctness of the theoretical derivation and the simulation analysis. The research results establish the foundation for the further application research.

Abstract: When the human to transmission line repair, many potential risks and fault will cannot be found in time, resulting in not by prior treatment measures to ensure the safety and reliability of the power supply. To realize the state overhaul transmission line, can reduce the blindness of maintenance, improve the transmission line operation stability and save a lot of manpower material resources. Transmission line state repair work there are many difficulties, so in the state overhaul transmission line, on the basis of elaborating the transmission line design condition maintenance expert system, in order to improve the transmission lines the state overhaul of work efficiency.