Object-oriented Programming Technology Research Articles

Design of an Intelligent Platform for Financial Expense Reimbursement in Colleges Based on Intelligent Data Storage of Process Information Sampling

The design is based on GSM process information wireless measurement system. The system is composed of related sensors and data acquisition modules, GSM wireless communication modules and main control computer, and has strong versatility. At present, colleges and universities have developed an information system that can meet the needs of financial management in colleges and universities by using advanced software development technology and combining with the actual work flow of financial management. Using object-oriented programming technology to develop a budget management system with a friendly operation interface, changing the complexity of manual budget preparation in the past and improving the efficiency of budget preparation.

Milling Simulation of NC System Based on 3D Modeling

In order to avoid interference in NC milling process, a milling simulation design method of NC system based on 3D modeling technology is proposed. We use OpenGL technology and advanced object-oriented programming technology to perform a comprehensive object-oriented design of the NC milling simulation software system. On this basis, the tool motion parameters in the NC code are extracted and stored, the STL model is introduced as the data model of the machining object, and the interface mechanism between OpenGL and VC is provided. Finally, through the main interface of Visual C++ application program, the development of database and application system oriented to 3D end mill model is realized. The simulation results show that the method presented in this paper is more realistic for the establishment of the whole virtual milling machine profile, and it is suitable for general or more complex parts NC machining programming and simulation.

About the application of the R-function for geometric modeling of 3D objects of complex shapes in a virtual educational environment

This article is devoted to the creation of a national virtual university platform, geometric modeling of the design of exteriors, interiors and characters in the field of information technology based on 3D technologies. We know that visualization uses geometric splines and polygonal mesh construction methods. In virtual reality systems, each object is represented by a three-dimensional model. The real challenge now is to create custom models that control them. A three-dimensional model of a character is represented by a depth map, dots, a polygonal model, a parametric model describing anthropometric, ansaphic and profile features of a human face. The research process includes the study of the rules of visualization of virtual three-dimensional objects through internal and external models, the theory of geometric modeling, algorithms, methods and algorithms of computer modeling, the use of virtual reality algorithms in education. Today, when engineering and technology are rapidly developing in our country, traveling to the virtual world is of great interest to many. As a result, three-dimensional content and landscape design expand the human imagination and serve to capture our knowledge about the subject and object in our memory. It would be more effective to transfer practical classes in computer halls of educational institutions to the virtual world and organize them in this virtual environment using virtual objects. In addition, all aspects of the subject can be explained and taught, and students will be able to use it virtually. Creating a toolbar that includes all virtual objects becomes a priority. Object-oriented programming technologies and testing methods were used. This article proposes new methods of geometric modeling of three-dimensional objects mentioned above, that is, the constructive logical-algebraic method of R-functions (RFM). This method allows you to depict 3D objects of high complexity.

A hierarchical object oriented Bayesian network-based fault diagnosis method for building energy systems

Bayesian network is a powerful algorithm to diagnose the faults in building energy systems based on incomplete and uncertain diagnostic information. In practice, it is very challenging to construct Bayesian networks for large-scale and complex systems. Inspired by the object oriented programming technology, a hierarchical object oriented Bayesian network-based method is proposed in this study. Its basic idea is to reuse the standard Bayesian network fragments predefined in the classes to generate the system-level fault diagnosis models for target systems. Inheritance is adopted to avoid inconsistent modeling of similar classes. It allows sub-classes to inherit the Bayesian network fragments from their super-classes. For a specific building energy system, the fragments are reused and combined to generate a hierarchical object oriented Bayesian network for real-time fault diagnosis. The proposed method is evaluated using the experimental data from an industrial building. The results show that the proposed method can provide customized fault diagnosis solutions for complex building energy systems without tedious and repeated modeling works. Most of the typical faults are successfully isolated.

An implementation of virtual office information system services in basic telecommunication technique practices

Information and communication technology has improved rapidly, but this technology is still underutilized in the world of education in Indonesia, especially virtual laboratories, with the existence of virtual laboratories the learning process becomes faster and more attractive so that the equality of learning can be done anywhere ant at any time especially with covid 19 outbreaks which swept the world, in Indonesian suddenly required to work and study online, for online lectures are often used but for practices where there are no facilities available for virtual laboratories, this research was conducted to design and plan using virtual office information system services and virtual labs can be accessed at any time with more efficient use of time. This research was carried out in the electrical engineering laboratory of Gorontalo State University. The method used in this research is to study literature and develop PHP programming software and AJAX programming technology and Cloud meeting zoom technology or vicon.ung.ac.id. The research tool is using tools in the form of laptop hardware or personal computer and software in the form of object-oriented programming language PHP and AJAX programming technology. The research results showed that the virtual office can process the implementation of office work in the laboratory with the work system being the target of work for laboratory managers, and students who are practicing Basic Telecommunications Engineering from the results of the Urgency Implementation of Virtual Office Information System Services in Basic Telecommunications Engineering practice, Electrical engineering laboratories can be used quickly and easily if supported by adequate network infrastructure. Digital telecommunications applications, conducting office / laboratory administration and practices activities can still be implemented with the presence of virtual office system services office / laboratory activities related to information services can be done with time efficiency, place efficiency, saving costs, Reducing barriers to a pandemic like this year 2020 with covid 19, so that the Basic Telecommunications Engineering Practicum will continue, can save operational costs when pandemics like covid 19.

A Modified Similarity Metric for Unit Testing of Object-Oriented Software Based on Adaptive Random Testing

Finding an effective method for testing object-oriented software (OOS) has proven elusive in the software community due to the rapid development of object-oriented programming (OOP) technology. Although significant progress has been made by previous studies, challenges still exist in relation to the object distance measurement of OOS using Adaptive Random Testing (ART). This is partly due to the unique features of OOS such as encapsulation, inheritance and polymorphism. In a previous work, we proposed a new similarity metric called the Object and Method Invocation Sequence Similarity (OMISS) metric to facilitate multi-class level testing using ART. In this paper, we broaden the set of models in the metric (OMISS) by considering the method parameter and adding the weight in the metric to develop a new distance metric to improve unit testing of OOS. We used the new distance metric to calculate the distance between the set of objects and the distance between the method sequences of the test cases. Additionally, we integrate the new metric in unit testing with ART and applied it to six open source subject programs. The experimental result shows that the proposed method with method parameter considered in this study is better than previous methods without the method parameter in the case of the single method. Our finding further shows that the proposed unit testing approach is a promising direction for assisting software engineers who seek to improve the failure-detection effectiveness of OOS testing.

A new implementation of data process in J-TEXT real-time framework

J-TEXT real-time framework (JRTF) is the latest development in real-time technology for developing plasma control system and other real-time applications on tokamaks by J-TEXT. It is powered by Linux open source software, fully embraced the object-oriented programming technology, and the modular design makes it a promising candidate for developing the prototype of PCS of China Fusion Engineering Test Reactor (CFETR). However, the data sharing between different application blocks (AB) could be time-consuming that brings in un-deterministic performance. In this paper, we first introduce the framework and the test device J-TEXT. After that, new data sharing method based on the mutex and double buffering are designed. Note that, kernel module programming which runs directly from Linux kernel space is also introduced to try to find some deterministic performance solutions to real-time data sharing process. In addition, in order to handle data more systematisms with searching from all the logs emitted by many ABs efficiently, data logging based on databases technology and a produce-consume model is lead into. This is also a key to solve simultaneously problem which may have an influence on the real-time performance. Then, an integration testing has been conducted to verify the realistic performance after bringing such method of data process to guarantee that data process can satisfy nowadays real-time and non-real-time needs in fusion aspects. Several comparing experiments also reveal the advantages and disadvantages of such process.

An automatic assembly CAD system of plastic profile calibrating die based on feature recognition

The complex structure of plastic profile calibrating die and the various types of holes make it difficult to meet the requirements for efficient and rapid assembly of the components of calibrating die. To solve this problem, this paper presented an automatic assembly CAD system, which was based on Siemens PLM NX platform, Visual Studio tools, and object-oriented programming technology. In this system, the relevance expression between components and main assembly was established. The recognition method of closed-loop sketch and attributed adjacency graph was used. Components were one-click unitized assembled. Based on those key technologies, the automatic assembly CAD system has been developed successfully, and it has been applied in a large mold enterprise, which improves the quality and efficiency of calibrating die design.

Mediating Social Network Education Teaching OOP

This article examines the practice of teaching object-oriented programming technology through social networking educational Redu and presents the functional requirements for improving the process of teaching. Observations were done in the classroom and online. Preliminary results indicate that social networking has proved to be an innovative teaching method and presents itself as an effective tool helping teachers in educational practice.

MVx-modeling: A Modeling Environment for Embedded Software Design of Heterogeneous MPSoC

Owing to the complexity and flexibility in heterogeneous multiprocessor System-on-Chip (MPSoC) architecture, parallel programming has become a tough and urgent problem to solve. Model-based development methodology improves the software production efficiency and the reliability. Some model development tools such as Simulink and Rhapsody are widely applied in the development of embedded applications. But they do not satisfy the characteristics of embedded heterogeneous multi-core software. Thus developing a general modeling environment for model-based software design is necessary and meaningful. This paper designed and implemented a graphical modeling platform MVx-modeling by using the object-oriented programming technology and Visual C#.NET development language. Practical application shows MVx-modeling platform easy-to-use and efficient. It speeds embedded application development and lowers software costs for heterogeneous MPSoC. DOI : http://dx.doi.org/10.11591/telkomnika.v12i3.4468 Full Text: PDF

The Study on the Implementation of AOP in .NET Platform

AOP(Aspect Oriented Programming) is a programming technology that makes the OOP (Object Oriented Programming) technology more complementary and perfect when being applied together with OOP technology. AOP provides ideal modularized structure for programming. At the moment, AOP has been supported and applied in two leading programming platforms: Java and .Net. Java provides perfect support to AOP, but .Net has not clearly provided the technique to support AOP. Meanwhile, Design Pattern has been widely used in programming. This study analyzes the theory of AOP technique and provides an implementation strategy for AOP based techniques on Proxy Pattern in .Net platform.

BIM-Based Integrated Design Software for the Steel Structure of Industrial Plant

The developed BIM-based integrated design software system is composed of two seamlessly integrated modules: structure calculation module and post-process module, the interface between the modules is clear. Using object oriented programming technology, a series of intelligent solid classes are abstracted to describe parts with deferent geometric information, structure properties and design requirements in real structure. Objects which are instances of these hierarchical C++ classes and logical links between them were integrated into the AutoCAD drawing database to construct a three-dimensional model. Several key functions including parametric shortcut modeling, frames analysis and member checking, three-dimensional solid construction, node design and editing, and drawing are implemented. IFC interface and the interface with common software are also implemented.

Visual Computation of Thermohydrodynamic Lubrication of Dynamically Loaded Journal Bearings

The Reynolds equation and energy equation with the thermal balance equation in combination were applied to build the thermohydrodynamic (THD) computational model of the dynamically loaded journal bearings. The most popular development platform——Visual C ++ in the field of computer science and the drawing platform of AutoCAD were combined with the medium of ObjectARX and the object oriented programming technology was used, on the basis of which, the visual computational software of the THD lubrication of the dynamically loaded journal bearings for main shaft and connecting rod bearings of automobile engines was developed. The analysis results of an example indicate that the bearing behaviors are closely tied to the radial clearances and inlet lubricant temperature of the bearing.

Graphical inheritance notation for state-based classes

State-based object-oriented programming combines basic advantages of object-oriented and automata-based programming technologies. Its basic features are flexibility, extensibility, and powerful mechanism of description of complex behavior, which is based on finite automata. The disadvantage of the state-based object-oriented programming is the lack of standard methods for designing and implementing state-based classes. In this work, graphical notation for designing state-based classes, which combines capabilities of the class diagrams of the object-oriented programming and behavior diagrams of the automata-based programming, is presented. The proposed graphical notation makes it possible to generalize, decompose, structure, and incrementally extend logic of the state-based classes by means of the inheritance.

Development of a PC-based Open Architecture Software-CNC System

AbstractAs a key technology in the field of advanced manufacturing, an open architecture controller is studied. In order to develop an open architecture software-CNC system on personal computer (PC) according to open modular architecture controllers (OMAC). First, the software and hardware platform is chosen and software realization methodology for the CNC system is determined. Second, static modeling methods of an open architecture controller inclusive of object-oriented (OO) programming technology, dynamic link library (DLL) technology and system modules partition are investigated. Third, the dynamical behavioral modeling and the data flow representation of open architecture controller are discussed, which are both described in hierarchy finite state machine (FSM) model. Fourth, a reusable software module model is established to develop software function module library. Finally, a 3-axis milling machine tool test-bed, named for HIT-CNC, is successfully designed by means of the constructed software function module library and the system configuring method. The experimental results show that, besides increasing the degree of reusability and openness, application of above-mentioned methodology leads to significant decrease of development time as well as maintenance cost.

Web-based parallel Monte Carlo simulation platform for financial computation

Using Java, Java-enabled Web and object-oriented programming technologies, a framework is designed to organize multicomputer system on Intranet quickly to complete Monte Carlo simulation parallelizing. The high-performance computing environment is embedded in Web server so it can be accessed more easily. Adaptive parallelism and eager scheduling algorithm are used to realize load balancing, parallel processing and system fault-tolerance. Independent sequence pseudo-random number generator schemes to keep the parallel simulation availability. Three kinds of stock option pricing models as instances, ideal speedup and pricing results obtained on test bed. Now, as a Web service, a high-performance financial derivative security-pricing platform is set up for training and studying. The framework can also be used to develop other SPMD (single procedure multiple data) application. Robustness is still a major problem for further research.

Computer-Aided Design System for CP Single-Screw Compressor

To design various optimum parameters and simulate the working process of CP single-screw compressor, the Computer-Aided Design (CAD) system for the CP single-screw compressor has been established. A new method based on computer graphics technology, database technology, object-oriented programming technology, and visual simulation technology has been adopted in this CAD system. The system has integrated solid modeling function with parameterization design function and animator simulation function based on analyzing the working principle of the CP single-screw compressor. The experimental results show that the CAD system for the CP single-screw compressor is practical and feasible.

Development of applications with fuzzy objects in modern programming platforms

Most of the applications that are currently being developed use object-oriented programming technology, as is the case of those applications built with the Java or C♯ languages. Data management has not kept out of this trend, and object-oriented and object-relational database management systems have arisen as a result. Soft-computing applications need to manage imperfect data and Fuzzy Sets Theory has proven to be a good choice for accomplishing the task of imperfect data management. In this article we present a framework that allows the programmers of soft-computing applications to deal with fuzzy objects in a transparent and intuitive way. This framework can be used to develop an object-oriented code in those systems that conform with current hip object-oriented languages, so that imperfect information can be managed. © 2005 Wiley Periodicals, Inc. Int J Int Syst 20: 1117–1136, 2005.

Improvements on EVSIML

A computer simulation software named EVSIML has been developed and is being brought to perfection all along. It has combined the MATLAB and Visual C++ programming languages and the Object-Oriented programming technology. The software of EVSIML (Electric Vehicle SIMuLator) is developed by MATALB and Visual C++ (VC) programming languages with Object-Oriented technology on the basis of the drivetrain model of the EV. It makes features of programming of MATALB and Visual C++ with Object-Oriented technology. EVSIML is mainly used to simulate the power performances and fuel economics of EV originally and now its functions have been expanded in order to deal with much computation and analysis about engineering including system match and control analysis. At the same time, as a complicated simulation software, excellent Graphical User Interfaces (GUI), high efficiency, quickly execute speed, good reusability, good maintainability and good expandability are also absolutely necessary. The paper will present the latest improvement on EVSIML and the new features of it in detail. In order to maintain the energy security of China, improve the air quality and enhance the competition of automobile industry of China in the world, the national science ministry of China has especially founded the special important EV project in the national tenth-five and 863 program, plan to emphasize particularly on the industrialization of the EV, exert to gain a significant breakthrough in the key cell technology, the system integration technology and the whole vehicle technology of the EV. The EV is a complex system that integrates a number of subsystems such as the vehicle body, electric propulsion, and energy source and energy management. The technologies involved are diversified and multidisciplinary, including electrical and electronic engineering, mechanical and automotive engineering, and chemical engineering. Because of these multidisciplinary and fast-changing EV technologies, the design process of the EV should be flexible, prompt and economical. Computer simulation not only facilitates this design process, but also enhances the system optimisation of the EV.

Knowledge management system on flow and water quality modeling

Due to the complexity of the numerical simulation of flow and/or water quality, there is an increasing demand for integration of recent knowledge management, artificial intelligence technology with the conventional hydraulic algorithmic models in order to assist novice application users in selection and manipulation of various mathematical tools. In this paper, a prototype knowledge management system on flow and water quality is addressed to simulate human expertise during the problem solving by incorporating artificial intelligence and coupling various descriptive knowledge, procedural knowledge and reasoning knowledge involved in the coastal hydraulic and transport processes. The system is developed through employing Visual Rule Studio, a hybrid expert system shell, as an ActiveX Designer under Microsoft Visual Basic 6.0 environment since it combines the advantages of both production rules and object-oriented programming technology. The architecture, the development and the implementation of the prototype system are delineated in details. Based on the succinct features and conditions of a variety of flow and water quality models, three kinds of class definitions, Section and Problem as well as Question are defined and the corresponding knowledge rule sets are also established. Both forward chaining and backward chaining are used collectively during the inference process. A typical example is also presented to demonstrate the application of the prototype knowledge management system.