Control System Software Research Articles

Welcome to 2020 and the Future of Control

Welcome to 2020 and the Future of Control

ПЕРСПЕКТИВИ ЗАСТОСУВАННЯ ТЕХНОЛОГІЇ БЛОКЧЕЙН В БУХГАЛТЕРСЬКОМУ ОБЛІКУ

The purpose of the article is the theoretical basis and further prospects for the use of blockchain technology in modern accounting. The study examines the theoretical and technical aspects of blockchain functioning. The essence of the distributed registry technology and the security of transaction records are substantiated. The article highlights the basics of miners’ work and the concept of remuneration in the form of cryptocurrency. As a rule, these are commissions from all participants of transactions recorded in the block, and remuneration from the network itself. The possibility of using blockchain in the modern accounting system is analyzed. The main advantages and disadvantages of using this technology in the process of accounting operations are considered. Among researchers of this theory there are both supporters and opponents. The emphasis is placed on saving information in the blockchain network due to the fact that information is not stored in one place and it cannot be changed. In the blockchain registers with data about the owners of assets cannot be forged. It is noted that the ambiguity of the domestic regulatory framework may be an obstacle to the implementation of the blockchain platform in the accounting sphere. There are often cases when explanations are published with different points of view on the same aspect of accounting. It is proposed to introduce new technologies gradually in the form of software for tax accounting and control systems. The new technology will effectively combat fraud and significantly expand the ability of regulatory authorities to track the organization’s activities, make accounting transparent, and allow it to be conducted in real time. The development of information technologies will increasingly penetrate all areas of the economy. At the same time, even in the future, the blockchain will not replace traditional accounting, but only complement it. Thus, its influence will be most noticeable in the sphere of control over settlements between different contractors or with the state. The need for further research on the use of blockchain in the field of accounting was noted.

On the quality indicators of automated control systems software

The subject of the research is the process of developing automated control systems software. The object of the research is the quality control system of this process. The regulatory documents establish a list of the main characteristics of program quality assessment, which, as practice has shown, does not fully meet its purpose, providing not quality control, but verification of the compliance of programs with the customer's requirements formulated in the terms of reference. One of the reasons for this lies in the impossibility of evaluating exclusively quantitative indicators of the quality of systems, including both technical means and a person. An attempt to use world practice, for example, relatively successful quality models from the ISO / IEC 25000: 2014 standards have not yet been implemented: the model itself is allowed to be used by regulatory documents (GOST R ISO / IEC 25010-2015), but the quality indicators described in it are not accepted. Private improvements to existing methods do not solve the problem systematically. The article uses general scientific methods of analysis and synthesis. Based on the analysis of existing approaches to assessing the quality of software development, proposals for improving this process are synthesized.The article formulates a scientific and practical problem and offers one of the approaches to its solution, based on the refinement of existing methods for assessing quality based on the model described in GOST R ISO / IEC 25010, taking into account the real needs of users, interpreted through reducing the likelihood of errors of the first and second kind arising from the use of software. The solution of the formulated problem will provide a general increase in the efficiency of automated control through the use of quantitative and qualitative assessments of the software being developed.

회전익 자동비행제어시스템 소프트웨어의 FMET 수행 및 검증 방안

회전익 자동비행제어시스템 소프트웨어의 FMET 수행 및 검증 방안

Object oriented design of safety critical programmable equipment systems

Purpose The purpose of this study is to provide a method for designing the software for a process control system that avoids difficulties that lead to safety problems. Design/methodology/approach Design of real-time software for safety critical programmable equipment systems (PES) such as process control or shutdown systems needs to be approached quite differently compared to any other software. It must be designed by those who understand the equipment system not by software engineers who do not. Following the ‘Piper Alpha’ disaster in the North Sea in the late 1980s, it was realised that the software of safety critical PES, such as the shut-down system on an oil rig, was proving very unreliable. Earlier hardwired relay-based shut-down systems were designed by process control engineers who understood the functions the equipment was required to perform; however, by the 1980s, such systems had been replaced by PES designed by system analysts who did not understand the technologies involved. The safety critical real-time software for a programmable equipment system will only be reliable when it is designed by control engineers who understand the functions it has to perform. Findings Bottom-up design of software is necessary to avoid safety issues and this can only be achieved using object-oriented methods. Originality/value This paper describes an entirely original idea of the author based on experience of managing the design and construction of the process control, emergency shut-down and fire and gas and communication systems for a major oil and gas platform in the North Sea around the time of the Piper Alpha disaster.

A review on control systems hardware and software for robots of various scale and purpose. Part 2. Service robotics

A review of robotic systems was carried out. The paper analyzes applied hardware and software solutions and summarizes the most common block diagrams of control systems. The analysis of approaches to control systems scaling, the use of intelligent control, the achievement of fault tolerance, and the reduction of the weight and size of control system elements belonging to various classes of robotic systems were carried out. The goal of the review is finding common approaches used in various areas of robotics to build on their basis a uniform methodology for designing scalable intelligent control systems for robots with a given level of fault tolerance on a unified component base. This part is dedicated to service robotics. The following conclusions are made on the basis of the review results: the key technology in service robotics from the point of view of scalability is the Robot Operating System (ROS); service robotics is today the main springboard for testing intelligent algorithms for the tactical and strategic control levels that are integrated into a common system based on ROS; the problem of ensuring fault tolerance in the service robotics is practically neglected, with the exception of the issue of increasing reliability by changing behavioral algorithms; in a number of areas of service robotics, in which the reduction of mass and dimensions is especially important, the robot control systems are implemented on a single computing device, in other cases a multi-level architecture implemented on Linux-based embedded computers with ROS are used.

Two-way controllable magnetorheological elastomer mount for shock and vibration mitigation

Current passive elastomeric mounts are designed to provide mitigation for a given shock and vibration exposure and are not capable of supporting variable payload systems, due to variation in the overall system dynamics. A novel magnetorheological elastomer (MRE) mount that can reduce or increase its stiffness based on payload and shock and vibration input is designed, fabricated, and tested to provide a wide controllable stiffness range for protecting sensitive systems that may require variable weight from external shock and vibration loading. A MRE is a field-controllable material in which the stiffness properties can be altered by changing the applied magnetic field. The two-way controllable MRE mount is designed by using three-dimensional electromagnetic finite element analysis. MRE mounts were developed by using relatively thick MRE layers and built-in electromagnets and permanent magnets. A two-layer MRE mount prototype is characterized by compression and shear tests. Control system hardware and software were developed to detect shock and vibration events, and activate the two-way controllable MRE mount, accordingly. The MRE mount and the control system were tested with variable representative weights. It was demonstrated that the designed control system can detect whether the incoming input is a shock event or a vibration event. The MRE mount demonstrated the ability to soften of stiffen based on the incoming input.

Mathematical Modeling of the Dynamics of 3-DOF Robot-Manipulator with Software Control

Abstract The paper presents a general method for constructing a mathematical model of multi-link robot-manipulators. For the 3-DOF manipulator, kinematic equations and differential equations of dynamics are obtained. To study mathematical models of the dynamics of robotic manipulators and applications in software control systems, it is necessary to develop special analytical methods for solving systems of differential equations. An analytical method of transformations applied for the study of mathematical models of the dynamics of 3-DOF robot-manipulators. The method allows to obtain a solution in an analytical form, taking into account all nonlinear components of the system of differential equations. The software package for study of nonlinear mathematical models was developed and implemented. The problem of software control of electric drives of 3-DOF robot-manipulator is considered and control actions are determined that ensure the fulfillment of a given trajectory by the manipulator. The method for constructing and analyzing a mathematical model of manipulators presented in this work can be used to study a wide class of multi-link manipulators with many degrees of freedom.

Dynamic Compensation of Path Length Difference in Optical Coherence Tomography by an Automatic Temperature Control System of Optical Fiber

Optical fiber is widely used in optical coherence tomography (OCT) to propagate light precisely with low attenuation and low dispersion. However, the total optical path length within the optical fiber varies in accordance with changes of the temperature. This leads changes in the total optical travel path of the interfering signals and results in shifting of OCT image position to an unintended depth pixel value. In this paper, we presented the temperature-based automatic path length compensating method in OCT to limit the external temperature effect and control the image position in micro-scale without manual movement of optical components. By utilizing developed hardware and software of automatic temperature control system, the external temperature of optical fiber is precisely regulated that evokes thermal expansion and finally changes the physical length of fiber, which is main mechanism of temperature-based path length compensating method. The effectiveness of the presented method was verified by two-dimensional OCT images of mirror and in vivo retina. The obtained results confirmed the path length variance due to temperature change is computable and can be regulated in real-time for whole pixel range of OCT image. Therefore, the proposed temperature-based path length compensating method can be used as an alternative method to precisely control the position of OCT image, while eliminating the effect of external temperature and apply to effectively configuring compact optical systems.

Design and Realization of Highly Reliable Logic Control Software for Pre-Launch Escape Command and Control System

Abstract In order to meet the sudden danger of manned launch vehicle on the ground, emergency escape control design in the pre-launching stage should ensure high reliability and high safety. Based on programmable logic control combination (PLC), a logic control software design was proposed. By constructing ‘data input module’, ‘logic control module’ and ‘function module’, emergency escape commands could be transmitted accurately; at the same time, combined with redundancy design, filtering design and other reliability design measures, the goal of occupying less system resources and high efficiency has been realized, which could guarantee that astronauts escape quickly and reliably at the first time of danger.

Ontology Construction and Evaluation of UAV FCMS Software Requirement Elicitation Considering Geographic Environment Factors

The quality of unmanned aerial vehicle flight control and management system (UAV FCMS) software is crucial to guaranteeing the quality of UAVs. Software requirement elicitation (SRE) is an important part of the UAV FCMS software development process. However, this activity suffers from ambiguity, heterogeneity and incompleteness; furthermore, because the use of UAVs is closely related to their geographic environment, geographic environment factors must be fully considered when conducting UAV FCMS SRE activity. In the knowledge engineering community, an ontology is an explicit specification of a conceptualization. Introducing the ontology method into the SRE process is an effective way to solve the above problems. This paper creates a UAV FCMS SRE ontology (SREO) based on domain knowledge and empirical data, as well as a geo-ontology based on geographic information metadata. Then, the paper integrates the above two ontologies into a new ontology. The goal of ontology integration is to analyze ontology concepts by adopting a hybrid ontology mapping method. The specific process analyzes the semantic similarities between the concepts of two ontologies and then decides whether to use a description logic (DL) strategy based on the analysis results. When the corresponding conditions are satisfied, the DL strategy is used to perform both direct and transitive reasoning for the relationships to achieve the ontology mapping, and the ontology integration is eventually implemented. Finally, this paper uses a criteria-based ontology evaluation approach to evaluate the quality of the newly integrated ontology. The evaluation results show that the UAV FCMS SREO considering geographic environment factors exhibits high quality. Further engineering practices also show that the SRE activities and the generated software requirement specifications (SRSs) exhibit a large increase in quality. Through the above activities, improvements to both the quality and reliability of UAV FCMS software can be achieved.

Mathematical analysis of spacecraft control cyclograms

In this paper, the mathematical analysis of spacecraft control cyclograms is considered. The proposed solution is applied to a ground-based control complex of spacecrafts, where a plenty of cyclograms is a part of the general technological control cycles of spacecrafts, which include the whole of spacecrafts system life cycle. The problem of ground control system software optimization is solved using static strategies and cost criteria. Spacecraft control processes cover all the system control cycle and regulate an execution of the information processing and control tasks in the ground-based and board control complexes. Analyzing characteristics of such the processes has ascertained a strong relation between spacecraft technological control cycles and their computer-based realization for the mentioned complexes.

Capabilities of automated LA-ICP-TOFMS imaging of geological samples

A new software control system enables adaptable and task-specific ablation modes for LA-ICP-TOFMS imaging.

The design of software development platform for CFETR plasma control system

The Plasma Control System (PCS) is a critical system of the tokamak device to guarantee the physical experiment operation. While the Chinese Fusion Engineering Testing Reactor (CFETR) PCS is in the preliminary development stage, the newly designed Plasma Control System Software Development Platform (PCS-SDP) will provide an effective, convenient, and visual development environment for PCS software developers. The PCS-SDP is developed based on the Eclipse framework as an extension and finally realized as an Eclipse plug-in. It is deployed in a thin-client C/S mode in which developers log in and work remotely and all the developments are carried on a development server. The PCS-SDP possesses an intuitive UI and contains modules of project management, algorithm management, visualization management, testing management, and version management. Because of these customized functions, the PCS-SDP makes the developers focus on the control logic design of the PCS algorithms without the need to pay attention to the PCS details; the work efficiency is improved significantly. In this paper, the requirements are analyzed, the system architecture and module design are presented, and some functions are demonstrated. The initial hardware environment deployment has been implemented and is also presented in this paper. Further efforts will be made to implement and demonstrate the functions of all modules on the EAST PCS, then serve CFETR PCS development and can be appropriate for most Plasma Control Systems.

PENINGKATAN KOMPETENSI GURU SEKOLAH MENENGAH KEJURUAN MELALUI PELATIHAN SOFTWARE ENGINEERING

Increasing teacher competency is a process that cannot be done instantly. Teachers must always be provided with new knowledge that can be applied to their own needs and institutions. Computer-based learning will greatly help educators in the current era of Information and Communication Technology, especially vocational teachers who teach in productive fields (engineering subjects). The problem faced is the inability of teachers to use computers as learning media. Teachers only use computers to present powerpoint media, even in practical subjects. The teacher has not been able to utilize software engineering that will assist in the practical learning process, such as AutoCAD software in learning Drawing Engineering and PLC software in learning control systems. Therefore, it is necessary to conduct integrated and comprehensive training for teachers in utilizing computers as learning media especially in the use of software engineering. All Muhammadiyah 1 Padang Vocational Middle School teachers and SMK Dhuafa Nusantara Padang were invited to take part in engineering training. In the implementation of the activity there were 15 teacher participants. The training material consisted of the introduction and use of AutoCAD software, and PLC software. The results of this training show that more than 90% of participants have been able to use AutoCAD and PLC software. Besides that, there was an increase in motivation and enthusiasm from the teacher to show performance, both in the use of software for classroom learning and in daily life as a professional who always tried to improve his competence.

Thyristor voltage regulator control algorithm research

The article deals with the development and research of thyristor voltage regulator (TVR) dual-zone control algorithm in the electrical distribution networks 6-20 kV. The TVR control system hardware and software complex based on the algorithm was developed using LabVIEW and NI myRIO controllers. The transverse, longitudinal and longitudinal-transversal voltage regulation modes experimental research was conducted by the TVR prototype. The experimental research results confirmed the developed algorithm and its program realization effectiveness and efficiency.

Design and Implementation of Embedded Intelligent Control System Software Programming Based on Genetic Algorithms

Embedded system has been widely used in the fields of production, life and automatic control with its superior performance since it was developed, and it is developing towards a more convenient and intelligent direction. Because of the limited target machine resources of embedded system, it is impossible to build a huge and complex development environment on it, so its development environment and target operating environment are separated from each other. The application program is downloaded to the target machine for cross-debugging. After debugging, the application program is downloaded to the target machine for cross-debugging and debugging. The intelligent control is used to generate the change value of the controller parameters, so that the parameters of the controller are adaptive and robust. Through the modular design idea, the modules are relatively independent, which is convenient for software programming and debugging. In genetic algorithms, after coding to form the initial population, the task of genetic manipulation is to impose certain operations on the individual’s fitness assessment according to their degree of adaptation to the environment.

Research on Application of New Type Marine Intelligent Diesel Engine Control System

Nowadays, with the increasing cost of shipping and fuel oil, more and more countries pay attention to the energy saving and emission reduction of marine main diesel engine. The application of marine intelligent diesel engine is more and more extensive. This paper studies the common rail fuel system of intelligent diesel engine represented by RT-flex, and analyses the comparison between marine traditional diesel engine and marine intelligent diesel engine, Simultaneous analysis the advantages of intelligent diesel engine. Based on the characteristics of electronic control common rail of RT-flex diesel engine, the structure and principle of fuel common rail and servo common rail are analyzed. On this basis, the intelligent diesel engine control system is mainly studied. At the same time, the application of flex View software of control system is also studied.

A review on control systems hardware and software for robots of various scale and purpose. Part 1. Industrial robotics

A review of robotic systems is presented. The paper analyzes applied hardware and software solutions and summarizes the most common block diagrams of control systems. The analysis of approaches to control systems scaling, the use of intelligent control, achieving fault tolerance, reducing the weight and size of control system elements belonging to various classes of robotic systems is carried out. The goal of the review is finding common approaches used in various areas of robotics to build on their basis a uniform methodology for designing scalable intelligent control systems for robots with a given level of fault tolerance on a unified component base. This part is dedicated to industrial robotics. The following conclusions are made: scaling in industrial robotics is achieved through the use of the modular control systems and unification of main components; multiple industrial robot interaction is organized using centralized global planning or the use of previously simulated control programs, eliminating possible collisions in working area; intellectual technologies in industrial robotics are used primarily at the strategic level of the control system which is usually non-real time, and in some cases even implemented as a remote cloud service; from the point of view of ensuring fault tolerance, the industrial robots developers are primarily focused on the early prediction of faults and the planned decommissioning of the robots, and are not on highly-avaliability in case of failures; industrial robotics does not impose serious requirements on the dimensions and weight of the control devices.

Implementation of fuzzy-based integrated framework for sesame seed separator development

In the current scenario, mechatronics-based new product development requires a multi-disciplinary approach for the interaction of mechanics, electronics and software requirements in order to enhance the system effectiveness. This work aims in developing a strategic methodology for making decisions during mechatronics-based new product development. This methodology integrates six different stages of processes, namely identification of the need for new product; conceptual design and development of the new product through fuzzy Delphi method, fuzzy interpretive structural modeling, fuzzy analytical network process and fuzzy quality function deployment algorithms; development of detailed design using computer-aided design/computer-aided engineering and control system software; development of prototype model; analysis of the developed prototype model and finally provide recommendations for product commercialization. The proposed methodology is applied for the design and development of mechatronics-based new product, namely sesame seed separator for agricultural sector. The performance of the developed prototype model of sesame seed separator is analyzed for the potential failures using Fuzzy VIKOR-based fuzzy failure mode and effect analysis (FMEA). Based on the results of fuzzy FMEA, the developed prototype model is redesigned and then finally recommended for commercialization. The framework enhances the product development process and reduces repair and rework.