Dynamic Link Library Research Articles

Data Trends in Industry Automation Using .NET Framework

This paper is focused on design and implementation of universal data interface for historical and real trends viewer analyzer in industry automation using. The first parts of paper are focused on usual situations with data interface in industry automation and data viewers. These parts exactly summarized actual situation about problematic of trends in industry automation. Next parts of paper are focused on research and implementation data interface in C# programming language as dynamic link library (DLL). Designed data interface allows basic configuration for all data sources. For example - choose data sources, selectable count signals or signal sample steps. The data interface was creating universally so that data interface can be easily edited. The result solution of data interface was tested in developed trend viewer.

Design of Reconfigurable Computer Software Platform

This paper takes reconfigurable technology and platform as well as component framework thought as the theoretical support, combines with Lua script and Dynamic-link library (DLL) technology and takes VC++ as development tool to construct a universal reconfigurable computer software platform based on wxWidgets framework library. The design of this platform itself is a main frame structure, and it can realize software interface, function, arithmetic and the reconfigurable structures from other aspects by the combination of different modules. This platform has the characteristics of practicability and foresight, and it also provides a new approach and method for user to customize business component quickly, so as to realize specific needs.

BR-Sensor: An On-line Data-driven Soft Sensor of Downhole Pressure

In this work an object-oriented approach for implementing soft sensor components, encapsulated as dynamic-link-library (DLL), is proposed. A variety of models used for the estimation of a specific unmeasured process variable and implemented as DLL components is integrated to the soft sensor main component by simply following the interface described in this paper. In order to check the performance of the proposed approach a computational analysis is carried out. Although the main objective is to deploy the soft sensors into the supervisory the main ideas laid out here can be extended to other Windows-based solutions.

Investigation of the performance of two-way left-turn lane on roads with staggered intersections

A simulation based on VISSIM and its external driver model dynamic link library (DLL) was used to investigate the efficiency and safety of a two-way left-turn lane (TWLTL) on roads with staggered intersections (SIs). The impacts of traffic volume, ratio of left-turn vehicles, and stagger distance on SIs and conventional cross intersection (CI) were simulated with the following results: (1) SIs with stagger distance shorter than 200 m show few advantages in terms of average delay over a CI irrespective of traffic volume and left-turn ratio; (2) In contrast, SIs with stagger distance longer than 200 m show advantages that, however, disappear with an increase in traffic volume and left-turn ratio; and (3) SIs show a significantly higher number of traffic conflicts than CIs, indicating that they have more serious safety problems. These results should help traffic researchers and practitioners decide whether it is feasible to establish SIs on existing roadways with TWLTLs and the appropriate stagger distance for SIs, as well as whether it is appropriate to change a road that has dense SIs into a TWLTL cross section.

Microcomputer Interface Experimental System Design

The experiment is an important part in the learning of microcomputer control technology. This paper presents a set of microcomputer interface experimental platform, which based on VC++ interface software and control method, and combined with PCI panel and experiment box. This experimental system calls the functions in the dynamic link library of the PCI-7483 interface card through the self-developed experimental program, and makes use of the resources of PCI interface card to control the hardware experimental box, to complete the basic and the extensional experiments, and indicates and reflects the results of the experiment by the hardware experimental box. This experimental system can help optimize the experimental curricula, and improve the students' practical ability and analysis ability.

On the recursive-parallel programming for the .NET framework

The paper describes software components to support the recursive-parallel programming for the.NET Framework. They are dynamic link libraries providing the necessary functionality for developing and debugging applications for parallel execution on a local network. Communication module library classes provide user-friendly software tools to establish “each with each” network connection and reliable asynchronous transmission for serializable objects. Classes of the recursive-parallel programming library provide representation of parallel computation branches as migratory processes, their initial distribution over the network, the transmission parameters and return results with the necessary synchronization, dynamic reallocation of work for load balancing and also sharing data processing. By this example it also describes some variants of the recursive-parallel algorithm to solve the problem of finding a maximum clique in a non-oriented graph and the results of testing the considered components.

Virtual Validation and Verification Method of Brake System Model

Model validation needs effective and efficient after development of the brake model. For the relatively high cost and limited coverage of test condition of the experimental verification, a virtual test environment of the brake system is established by using the vehicle model and the graphical interface of mature vehicle dynamics simulation software Carsim. Firstly, the brake system model is encapsulated into a dynamic link library. Then the new brake model according to the relationship between input and output of the brake system and vehicle through the S-function is integrated with Carsim vehicle model in Matlab/Simulink, replacing the Carsim brake model. Finally, the mixed model is verified though comparing with Carsim vehicle model in the same operation condition. The simulation results show that the validation and verification method are effective and low cost.

The Design of Depth Drill Machine Based on Automatic Control AC Servo System

Based on AC servo system of deep hole processing,a new kind of open CNC system is proposed by calling the dynamic link library under Windows operating system, which is made up of googol motion controller GE-400-PV,Panasonic MINAS driver and AC servo motor, has good man-machine interface, solved that the traditional methods is difficult to satisfy the practical requirements in the precision and efficiency of the deep hole processing, experiments show that, the control system can achieve the effect of precision processing, fully meet the requirements of mechanical technology in practical application.

An open architecture for auralization of dynamic soundscapes

An open architecture for auralization has been developed by NASA to support research aimed at understanding human response to sound within a complex and dynamic soundscape. The NASA Auralization Framework (NAF) supersedes an earlier auralization tool set developed for aircraft flyover noise auralization and serves as a basis for a future auralization plug-in for the NASA Aircraft Noise Prediction Program (ANOPP2). It is structured as a set of building blocks in the form of dynamic link libraries, so that other soundscapes, e.g., those involving ground transportation, wind turbines, etc., and other use cases, e.g., inverse problems, may easily be accommodated The NAF allows users to access auralization capabilities in several ways. The NAF's built-in functionality may be exercised utilizing either basic (e.g., console executable) or advanced (e.g., MATLAB, LabView, etc.) host environments. The NAF’s capabilities can also be extended by augmenting or replacing major activities through programming its open architecture. In this regard, it is envisioned that third parties will develop plug-in capabilities to augment those included in the NAF.

Interface-Based Medicare Billing Software Design

Medical institutions and health care billing system is mostly independent of the hospital information system software, such as the presence of a heavy workload and inconsistent information due to the Hospital Information System would like to produce a secondary entry problems. Design of Medicare billing software based on the interface, is the fundamental solution to the problem. This paper describes a specific Medicare interface specification, implementation of information exchange with the medical center by the dynamic link library functions, including the structure and format of the input and output parameters of the library function call, as well as medical insurance information processing flow. Select Delphi as a development tools, the definition of the interface specification stored in arrays, Achieve various Medicare functions of the Medicare interface specification with custom functions. A Medicare billing software system is completed with Medicare directory information management, Medicare card information management, Medicare fee settlement management, and the other Medicare functions.

Structural classification and similarity measurement of malware

This paper proposes a new lightweight method that utilizes the growing hierarchical self‐organizing map (GHSOM) for malware detection and structural classification. It also shows a new method for measuring the structural similarity between classes. A dynamic link library (DLL) file is an executable file used in the Windows operating system that allows applications to share codes and other resources to perform particular tasks. In this paper, we classify different malware by the data mining of the DLL files used by the malware. Since the malware families are evolving quickly, they present many new problems, such as how to link them to other existing malware families. The experiment shows that our GHSOM‐based structural classification can solve these issues and generate a malware classification tree according to the similarity of malware families. © 2014 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

Analysis of lifting operation of a monopile for an offshore wind turbine considering vessel shielding effects

This study addresses numerical simulations of the lifting operation of a monopile for an offshore wind turbine with a focus on the lowering process. A numerical model of the coupled system of the monopile and vessel is established. The disturbed wave field near the vessel is investigated and observed to be affected by the diffraction and radiation of the vessel. The shielding effects of the vessel during the continuous lowering operation are accounted for in this study by developing an external Dynamic Link Library (DLL) that interacts with SIMO program in the time-domain simulations. The DLL is implemented by interpolating fluid kinematics between pre-defined wave points near the vessel. Based on the time-domain simulations, the critical responses, such as the motions of the monopile, the tensions in the lift wire and the contact forces in the gripper device in the disturbed wave fields, are compared with those in incident wave conditions. The results indicate that a great reduction in these extreme responses can be achieved when the shielding effects are considered. The sensitivity study of the responses in different wave directions is performed. The results indicate different behaviours with different wave directions and with short or long waves. A comparison of the responses when using a floating vessel and a jack-up vessel is also studied and can be used to support the choice of installation vessel type.

Software Development of Corneal Endothelial Cell Analyzer

Based on the current development of corneal endothelial cells in the domestic, this paper developed corneal endothelial cell analyzer software system which taken Microsoft Visual Studio as development platform in Windows7 system and combined with MATLAB image processing technology and the Access database information management technology. The software relies on a database established patient archiving and query system, by VC + + statically call the dynamic link library that MATLAB Compiler generated to complete image processing, by partial equilibrium approach for image enhancement, by dynamic difference method for determination threshold when binaries. The software provides good interactive interface and graphics display surface, but also sets aside network port as follow-platform extension.

3-D NC Testing Platform Based on Motion Control Card

Researched the virtual-actual integrated technology based on the computer simulation test, 3-D NC test platform was mentioned using ′PC+Motion controller′as the core. In the VC++6.0 environment, the MFC series and the GT motion controller dynamic link library was used to realize multi axis linkage control function and 3-D NC control system software was developed. The “” vector control strategy and the SimPowerSystem module library was used to establish the system simulation of PMSM vector control model, Matlab software and InTouch software were used to realize the virtual simulation and associated debugging for control system and mechanical transmission system, the feasibility of numerical control testing platform was verified .

Research on Data Acquisition Technology of Wind Turbine Monitoring System

In order to guarantee the safety of wind turbine, online monitoring system of wind turbine was utilized. Data acquisition technology is one of key technologies in monitoring systems. To reduce communication error rate of wind turbine monitoring system, the reliable data acquisition methods were presented in this paper. It utilized TCP protocol and double buffer asynchronous communication method on system server. The cycle buffer and multithread processing method was utilized on the acquisition terminal. The working state data were saved into PostgreSQL database with Npgsql dynamic link library. The data acquisition methods realized high speed, large capacity, and reliable data transmission. They can improve the accuracy and lower the cost of wind turbine monitoring system.

The method of the internet authorization for the protection of shareware programs

The possibility of providing users with a shareware version of the program is promising for software developers. In this case, the user may use a fully working version for a limited period, or only part of the program functions, but without time limitation. However, this possibility is often a weak point in the software protection. There are many cases of unauthorized use of shareware programs.The authors have developed a software protection protocol, including shareware programs, which is based on using the electronic digital signature mechanism.In developing the program, its paid features are placed in a separate dynamic-link library DLL. The original file of the library is stored only on a remote server and is not distributed with the program upon its purchase. The file is loaded into the program memory at the time of its launch by the authorization over the Internet.Description of the protocol of data transfer between the program and the remote server, as well as the method of the paid functional protection in the software, is given in the paper. In addition, the software implementation of the protocol was executed and, on its basis, the computer program protection module was developed.This method in contrast to the existing allows a developer easily distribute software through the Internet without the worry about the possible appearance of illegal copies. Developer has the opportunity to monitor the process of using the licenses provided, reveal offenses and block licenses. The server part allows to "follow" the user's actions such as starting a program, creating a new document, using the data handler, generating a report, etc. and block the program in case of unauthorized use. Providing licenses over the Internet allows the user quickly renew the license or replace one license with another.

Preliminary study of coupling CFD code FLUENT and system code RELAP5

The present paper discusses a coupling strategy of the 3D (three-dimensional) computational fluid dynamics (CFD) code ANSYS-FLUENT with the best estimate 1D (one-dimensional) thermal–hydraulic system code RELAP5/MOD3.1. Preliminarily, by using DLL (Dynamic Link Library) technology and FLUENT UDF (User Defined Functions), an explicit coupling method expected to be able to support the analysis of multi-purpose thermal–hydraulic phenomena in nuclear reactor systems has been developed. Calculations for two test cases using the coupled FLUENT/RELAP5 code have been carried out to test and demonstrate the coupling capability: (i) the first one consisting of single-phase water transient flow in a square straight tube with well controlled mass flow rates; (ii) the second one illustrating the process of single-phase water flow in a system including two closed loops and one vessel, on which loss of loop water flow due to pump trip and increase of loop water temperature are studied. Both reasonable 1D systematic behaviors and 3D distribution information are naturally obtained for the test cases. Besides, a study of a highly transient experiment problem, i.e. Edwards–O’Brien pipe blowdown problem, has been performed by using the coupled FLUENT/RELAP5 code. The results are compared with standalone RELAP5 calculation and available experimental data, which shows the coupled FLUENT/RELAP5 code’s acceptable potential for the capability of analyzing either simple single-phase or complex two-phase flow problem.

The Construction of the Agricultural Products Traceablity Code System Based on a Type of Barcode Technology

Using Visual Basic as the development platform, the agricultural products traceability code system was constructed based on the PDF417 two-dimensional bar code technology through the embedded c++ dynamic link library (DLL) in the paper. The system implemented the expression of the related information for agricultural products origin, agricultural products, certification types, agricultural products processing enterprises, production date, shelf life of agricultural products and so on. Through the effective traceability of agricultural products, the requirements of the consumers to agricultural product quality were satisfied by the system.

Detection and Control of I/O Interface by Calling DLL in VB

This paper details the realization of the detection and control of the equipment interface using visual basic (VB) and C++ mixed programming. It discusses the attention problems and programming method of making dynamic link library and the VB called dynamic link library, and an example is presented to detect and control the device interface, using VB to call the dynamic link library can realize the detection and control of the bottom interface, it solved the problem that VB language cannot realize the detection and control of input and output interface. This method has universal significance for the design of control system.

Software Development of an Automatic Measuring Instrument for the Flatness Error of the Rail Wagon

Matlab and Microsoft Visual C++ were used to program the automatic measuring instrument for the flatness error of the Rail wagon. Microsoft Visual C++ is used to program the struct body, which takes full advantage of the high programming efficiency, high execution speed and beautiful imple interface. In the meantime, powerful computational function and image fitting of Matlab is added to the program. Through the method of Dynamic Link Library, these two softwares are linked and the figure created by Matlab can be insetted in the main interface created by Microsoft Visual C++, which keeps the united and elegant appearance.