Applied Mechanics and Materials Vols. 644-650

Abstract: This paper describes an implementation and validation result of a interface design for wearable oxygen saturation sensor systems. The system mainly consists of medical sensor module, RS232 module and ARM-based embedded software, the medical sensor module used for receiving, amplifying, filtering the signals of oxygen saturation and pulse in real time,RS232 module implementing serial communication driver and serial data receiver. The part of software is developed by Visual Studio 2005 VC#, adopts Windows CE as its platform which supports multi-threaded, database, communication and instantaneity. The typical characteristics of this system are its portable interface, easy operating way and software scalability.

Abstract: A novel method was proposed to solve the problem which was caused by high dimensions. Minimum Noise Fraction was used for dimension reduction. And then the RX algorithm and KRX algorithm was used to detect the data after dimensional reduction. The method proposed was better by comparing the ROC of four detection results.

Abstract: Coal Mine Safety Monitoring System is an important material guarantee for Coal Mine Safety Production. At present,most China's coal mines have established safety monitoring system, but in the use of safety monitoring system we've found many problems. In order to solve these problems ,our paper put forward some practical solutions. [1].

Abstract: Network anomaly traffic detection can discover network abnormal behavior and unknown network attacks. But anomaly detection system in current has the disadvantage of the high rate of false positives. Because the condition is not sufficient and high-order conditional reasoning cannot be computed, it leads inaccurate detection of abnormal behavior. In this paper, an analysis method for abnormal network traffic detection is presented. The method firstly applied conditional event algebra for abnormal network traffic detection of Denial-of-Service (DoS) attacks on the 10% trainset of KDD Cup 99 data set. Neptune attack, as an instance of DoS attacks, is used to illustrate this method. Firstly of all, introducing analyzes the attack process of neptune attack. Then, Selecting the most related features of neptune attack on KDD Cup 99 data set and summarizes the basic flow chart of neptune attack. Finally, applying this method for detection of Neptune attack, it can be found that this method can handle with high-order conditional reasoning under insufficient situation, and detect network abnormal behavior.

Abstract: Sobel, Roberts operator is derived based on the differential. As a result of the template and fixed threshold value, it lacks adaptability. Median filter on images of the collected cardiac seeds maturity, use split clustering algorithm on cardiac seeds maturity for the first image gradient value clustering, condensed cluster on the result of the first split the clustering results, then secondly division cluster, and finally work out the image edge based on the second clustering results and realize on the FPGA implementation. At last the method is Applied in Andriod Platform. The experimental results show that it is more delicate to use the hierarchical clustering algorithm to detect the edge and it has stronger ability to suppress noise.

Abstract: Hough transform as an effective graphics target detection method can detect straight lines, circles, ellipses, parabolas and many other analytical graphics. The discretization of space, as well as the calculation of the process make Hough transform have some limitations, such as poor detection results because of high-intensity noise, a large amount of calculation, large demand of storage resources and so on. This paper analyzes the Hough Transform voting process and points out that the accumulation with 1 in the method is unreasonable. The paper proposed a Hough transform based on template matching via the modification of the definition of the traditional method. In this method, each parameter unit identifies a template in image space. The feature points according with the conditions can be searched by the template actively. The method takes the number of feature points as the value of parameter unit and takes the record of the coordinates of line segment endpoints. So line segments can be detected and storage resources can be saved.

Abstract: Signal-oriented test is care for the signal process without regard of the specific instrument, while the self-test program of Automatic Test System has to test and verify the specific instrument. We put forward the Abbreviated Test Language for All Systems self-test program design and the implement method on GPTS3.1 software platform. Achieving results show that the method performs self-test well.

Abstract: According to the measurement problem of aircraft parts at maintain field, a measurement system based on industrial robot is proposed in this paper. An industry robot which carries an electronic lever indicator with communicating function to sample data, serves as main measurement actuator. The aircraft part is fixed on a revolving table, and the whole part can be measured on equivalent rotated place. Some key points, such as the kinematics model of the system, the calibration of the system and measuring approach are discussed. The experimental results demonstrate that the system is more flexible and more efficient and fit better in the maintain field with respect to traditional measurement methods.

Abstract: The auto test program of ATS only test and verify the specific instrument and switch. The assignment of instruments and switches in the ATLAS test program which can test the specific instrument and switch is presented. Inorder to improve the test efficiency of the test program,a method is also presented to reduce the redundant action in the testing loop.

Abstract: Due to the complex structure of railway coupler, the evaluation of coupler is always a difficult task for railway carriage inspection at present. Combining structural light scanning technology with movement mechanism, a coupler auto-evaluation system has been designed and realized. This paper emphasizes on analyzing the measuring model of the coupler evaluation system, and introducing the point cloud data processes for getting evaluation items. The system is more flexible and efficient than traditional detection method of coupler, and can meet the requirements of auto-evaluation items of coupler.