Applied Mechanics and Materials Vols. 568-570

Abstract: In this paper, we developed a tide extraction software system which is based on GPS RTK / PPK and MRU (Motion Reference Unit) . Firstly, we analysis the quality control and the attitude correction which are the most important key technologies in this software . At the same time, the frame of the whole system, the computer environment, the software development tool are also analysised in detial in this paper. Finally, the stability and accuracy of this software system are verified by the experiment in Guangdong Yamen coastal waterway .

Abstract: Path coverage testing is almost impossible to achieve because of the large number of paths. The function calling path coverage analysis method can guaranty adequate test coverage rate effectively on the precondition of unit testing completion. Based on function calling relations, the methods of dynamic generation function calling path is proposed. For cycle and recursive calling, design instrumentation rules and probe function, complete source code instrumentation, ensure the stub point flow can trace to the function calling relations. The function calling path generation algorithms were designed to split the stub point flow to the dynamic function calling path. Experimental results show that the dynamic function calling path generation method based instrumentation can extract the function calling paths which are executed by test cases and gain the coverage of information automatically.

Abstract: In order to accurately obtain the Java program function calling path, and for facilitating automated testing and automatic test cases generation, the article puts forward an algorithm of Java function calling relation extraction based on Soot open source tools. Firstly, statically analyze within a single function calling relationship, define the function calling tree, and analyze the relationship between a single function calling tree and the program function calling graph. Then by combining algorithm to generate the process the function calling graph. Experiments prove that this algorithm can accurately and efficiently generate the Java function calling graph, and can guide the testers to design high efficiency and high coverage test cases.

Abstract: Automatic test case generation has been a hotspot and a difficult problem in the software testing, Accurately and efficiently generate test cases can improve the efficiency of software testing. Java programs have many characteristics such as encapsulation, inheritance, polymorphism and so on, it is convenient for software design and development, but to bring automated testing some difficulties. This article on the Java program of automatic test case generation method is studied and presents a framework for automatic generation of test cases. With this framework, test case suite will be generated quickly and accurately. Experimental results show that automatic Java test case generation framework can quickly and accurately generate test cases , reduce labor costs and improve efficiency.

Abstract: Path coverage testing based on the function calling relationship is an important criterion for ensuring testing adequacy. The key to path testing is the determination of path number. This paper proposes an algorithm to generate static function calling paths with control logic based on the finite-state machine (FSM). The algorithm analyzes the C++ static source code and extracts the program information, generating static function calling paths and function calling graphs. The experiment proves that the algorithm can accurately generate static function calling paths with control logic and obtain the path number of the testing program. The accurate extraction of the static function calling paths lays a solid foundation for path coverage testing based on the function calling relationship.

Abstract: This paper presents a technical implementation model for data capturing scripts in PHP to be efficient in the environment of a browser, Apache and MySQL. Traditional PHP scripts are usually run within the environment of the Apache OS and MySQL database, through a browser. This will lead to a substantial time limit when Apache runs. When the data to be captured by the PHP script is large, Apache will not be efficient enough to grab all the data and update the data into the database. In this paper, we use the shell scripting language to call PHP language in the terminal under Linux environment, and then grab the weather conditions in various cities in China, hence achieving the data capturing objectives, and update these data into the database in real time.

Abstract: For solving the Ant Colony System own inherent defects, this paper proposes a novel combinatorial ant Colony Optimization algorithm with detection zone rule. In the proposed algorithm, the pheromone and the search path are modified dynamically. By using the detection method, the artificial ants are detected automatically per m iterations during the detection zone. When the ant colony falls into the local optimum, the variable will be adaptive modified by the algorithm. Meanwhile, for improving the search abilities of artificial ants, it changes the global rate of pheromone evaporation and the maximum and minimum of pheromone, respectively. The performance of the novel algorithm is conducted, and the comparison among the original Ant System (AS), Ant Colony System (ACS) and proposed algorithm is shown. The experiment result demonstrated that the CACOD has a better performance than ACS in term of the capability of search and ability of restrain stagnation.

Abstract: As the complex situation of electromagnetic environment is difficult to be analyzed and simulated visibly, interface program is developed based on the calculation module of Wireless Insite2.5 software. Equipments such as communication, radar, electronics resists and other radio devices are studied to build accurate theoretic models. Moreover, a method for creating software receivers quickly in MATLAB is proposed and other equipment models are created automatically just based on the parameters of equipments in the same way. Then, situations of time, frequency and energy-domain are calculated successfully with using Wireless Insite2.5. Complex 2-D situation of electromagnetic environment is displayed in the 2-D map by using MATLAB map display technology. At last, Display and query visualization for complex situation of electromagnetic environment is realized by designing a visual data query tool of mouse.

Abstract: Cloud computing is a new Internet-based computer technology. This paper introduces the historical development of cloud computing in the narrow and broad senses. Various definitions of cloud computing are compared, and a generalized concept of cloud computing is put forward combining its features of virtualization, dynamic extensibility, deployment according to need, high flexibility, high reliability, and high cost efficiency. Following a summery of the seven forms of cloud computing technology, the present status and future trend of cloud computing technology are analyzed. The research and analysis provides a guide to the direction of computer network algorithms.

Abstract: Based on the informatization status analysis of the ceramic enterprises, combined with the advantages of SaaS (Software-as-a-Service) model, this paper presents proposing solutions of building the informatization integrated service platform for ceramic enterprises based on SaaS and analyzes the key technologies of building the platform. The platform can provide informatization services for ceramic enterprises like ceramics e-commerce, ceramic products pattern design, ceramic enterprises management and etc.