Advanced Materials Research Vols. 912-914

Abstract: The needs of large-capacity storage in high-speed image acquisition systems require the design of reliable and efficient storage instruments. The paper presents a FPGA-based high-speed storage instrument for high speed Camera Link image acquisition system. The FPGA processes the input data and stores the results into the storage array. Multi-chip large-capacity SLC NAND Flash chips constitute a storage array, with up to 100MByte/s storage rate, is used for the digitization image signals. A multilevel high-speed buffer structure based on abundant internal block RAM resources in FPGA is used for speeding up data access. At the same time, it can take advantage of FPGA constructing the corresponding VGA timing signals to control the video conversion chip ADV7123 to realize the function of real-time display. After a description of the proposed hardware and solutions, an experimental was built to test the performance. The results have shown that the FPGA-based acquisition system is a compact and flexible solution for high-speed image acquisition applications.

Abstract: To improve the vertical resolution and statistical accuracy of C/O logging, a new structure of the logging tool is proposed. In the processing of logging, the tool is set close to the inner wall of the casing by the sidewall contact device, and the shield between the two detectors and borehole fluids is employed, it makes both the detectors chiefly collect formation information. Based on the program above, the detection system and the sidewall contact device are processed and assembled with DDCO-III C/O logging tool. The simulative well experiment results show that the eccentric C/O logging tool has less borehole effect, higher logging sensitivity and better formation distinguishing ability.

Abstract: Fire warning is a matter of concern in laboratory, this paper presents the design of distributed sensors fire warning system. The core idea is that a number of the bottom sensor collection terminals that consists of temperature and smoking sensors are evenly distributed in the laboratory; when there is a fire to happen, the bottom sensor collection terminals will send an alarming signal by the way of wireless communication to the middle layer alarming signal collection terminal, which starts a GPRS module to capture the scene and send the image to the senior monitoring management center. The senior manager receives an alarming image information, analysis and process, start the appropriate fire alarm system. After a year of testing and running, the system achieves the originally designed aim, and is reliable and stable.

Abstract: With the continuous implementation of internet of things and the rise of cloud computing, enterprise data center faces a huge test.In response to the new situation more stringent quality assurance service,data center server cluster needs a new architecture to support the new service high availability requirements.In this paper, the problems existing in the traditional data center server cluster architecture are analyzed,and put forward the application IRF2 technological upgrading data center server cluster network architecture,network availability method.

Abstract: The Marine radar is essential electronic equipment for ship. Its performance is directly related to ship safety. By applying a variety of new systems and new technology, Reliability of radar equipments has been effectively improved. Marine radar will gradually develop into solid-state radar with multiple frequencies. At the same time, this paper also introduces the working principle and structure of solid-state radar.

Abstract: Dynamiccharacteristic analysis of bridge structure is the foundation of the seismicresponse analysis and seismic design, includes the calculation and analysis ofnatural vibration frequency and main vibration mode.The natural vibrationfrequency not only is the index of bridge structure rigidity,but also is the basisof identifying whether the bridge structure resonance occur. In this paper thehealth condition evaluation of highway bridges was carried out based on anambient test and finite element analysis, using finite element analysissoftware ANSYS calculates and analyzes the dynamic characteristic of bridgestructure, then gets the natural vibration frequency and main vibration mode ofbridge structure, finally compares with results of ambient tests. The resultsshowe that, structural dynamic stiffness of Rencungou Viaduct and YingyugouViaduct can meet design requirements; but structural dynamic stiffness ofLiaoyugou Viaduct is lower

Abstract: As the traditional educational resources platform exists some deficiencies in storage, parallel processing, and cost, we designed a cloud platform of educational resources based on Hadoop framework.The platform applied HDFS distributed file system to store massive data distributedly and applied MapReduce distributed programming framework to process data parallelly and scheduler resources, which solved the mass storage of resources and improved the efficiency of various resources retrieval.

Abstract: Low-coherence Extrinsic Fabry-Perot interferometric (EFPI) sensors have previously been demonstrated for varies measurements such as temperature, strain, diplacement, etc. In this paper we analysis the sensor error and give some advices to reduce the error.

Abstract: This paper addresses the function projective synchronization problem between 3-cell Quantum cellular neural network hyperchaotic system and 6th-order cellular neural network system in the presence of unknown system parameters. Quantum-CNN systems produce nanoscale chaotic controllers under certain conditions. Based on Lyapunov stability theory the adaptive control law and the parameter update law are proposed to make the states of the 3-cell Quantum-CNN hyperchaotic system and 6th-order cellular neural network system asymptotically synchronized. Numerical simulations are presented to demonstrate the effectiveness of the proposed synchronization schemes.

Abstract: Response surface method (RSM) is widely accepted as an efficient method for reliability analysis, especially when the limit state function (LSF) is supposed to be highly nonlinear or closed-form mechanical models to describe the complex structural systems are not available. However, the selection of different response surface functions may result in different computational accuracy and computing time. In this paper, stochastic response surface method (SRSM), in which Hermite polynomials are employed to approximate the real LSF, is adopted in this paper to analyze the fuzzy reliability of structural systems. With a beam presented as an example, traditional methods, such as FORM, JC method and sequence response surface method, and the method raised in the context are compared in case of the study on solving the reliability. The results show that fuzzy reliability analysis with SRSM is relatively much more efficient and less time-consuming, thus the method raised is more suitable for the analysis of this kind of problems.