Recent Technological Advances in the Control and Guidance of Ships

1994 ◽  
Vol 47 (2) ◽  
pp. 236-258 ◽  
Author(s):  
N. A. J. Witt ◽  
R. Sutton ◽  
K. M. Miller
Keyword(s):  
Control Systems ◽  
Intelligent Control ◽  
Adaptive Systems ◽  
Control Method ◽  
Control Strategies ◽  
The Past ◽  
Technological Advances ◽  
Ship Control ◽  
Made In ◽  
Modern Control

Over the past seventy years many advances have been made in the field of ship control. Early developments by Sperry and Minorsky on proportional controllers have led to today's modern control systems which have interfacing capabilities with position fixing equipment.This paper presents a brief historical summary of the methods employed in ship control from early proportional devices through the range of adaptive systems and concludes with details of a possible future control method known as intelligent control.Intelligent control consists of three methodologies: expert, fuzzy and neural. An investigation and comparison of the methodologies will present possible future control strategies.

scholarly journals Design of components of adaptive control system of conveyor transport

2021 ◽  
pp. 26-33
Author(s):  
Tetiana Pluhina ◽  
Oleksandr Yefymenko ◽  
Vladimir Suponyev ◽  
Nina Nikolaichuk
Keyword(s):  
Adaptive Control ◽  
Control System ◽  
Control Systems ◽  
Intelligent Control ◽  
Adaptive Systems ◽  
Evaluation Method ◽  
Design System ◽  
Adaptive Control System ◽  
Adaptive Control Systems ◽  
External Conditions

The task design of components of adaptive control system of conveyor transport was carried out. The analysis of existing researches and publications, in which the main problem is highlighted, namely that uncertainty and external conditions during operation leads to the need to introduce new components, functions of the actuator conveyor and ensuring the adaptation based on intelligent control. As a result of the existing researches analysis and publications, the purpose of research is set, namely: increasing the efficiency of the conveyor line control system by designing the components of the adaptive control system that implement the algorithm of adaptation in conditions of uncertainty. The concept of а multicriteria choice, set of indicators for assessing the properties of a design system and its total effect have been substantiated. The results of the research are as follows: structured the functions of adaptive systems; the basic modes of development of adaptive control systems and their realization in industrial conditions are set, for that purpose, the mathematical support for exposing the vagueness of control worked out by ACIT KHNADU is used; the principles of development of adaptive control systems, technical support and requirements produced to the basic components of system (subsystems) are proposed. The practical value lies in the fact that the choice of components control systems makes it possible to improve the accuracy and the possibility of data correction. The originality lies in the use of multicriteria evaluation method and parameter optimization. Models are universal, will allow to select a set of technical means of CT control system according to the selected criteria and restrictions of each type of elements.

Overview on Intelligent Control Strategy of BLDC Motor Based on PID Algorithm

2013 ◽  
Vol 347-350 ◽  
pp. 98-101
Author(s):  
Ying Xu Zhang ◽  
Quan Qiu ◽  
Quan Ming Zhao ◽  
Wen Gang Zheng
Keyword(s):  
Intelligent Control ◽  
Pid Control ◽  
Control Method ◽  
Control Strategies ◽  
Development Trend ◽  
Bldc Motor ◽  
Parameter Setting ◽  
Pid Algorithm ◽  
History Of ◽  
The Development Trend

This paper gives a rough review of the intelligent control strategies used in BLDC (Brushless Direct Current) motor controller. The development history of BLDC motor is introduced firstly. The parameter setting problems in a traditional PID control method are analyzed secondly. Then, an intensive introduction on the intelligent control strategies those are used in the PID control system is presented. Finally, the development trend of the intelligent control strategies in the BLDC motor control is discussed.

PLC-Based Embedded Intelligent Control Research

2015 ◽  
Vol 799-800 ◽  
pp. 1127-1131
Author(s):  
Wen Chong Cui ◽  
Yu Lin Dong
Keyword(s):  
Intelligent Control ◽  
Control Strategy ◽  
Control Method ◽  
Control Strategies ◽  
Rapid Development ◽  
Control Effect ◽  
Industrial Control ◽  
Expert Control ◽  
Control Research ◽  
Traditional Process

With the rapid development of industrialization, the intelligent control has increasingly replaced the traditional process control in PLC in recent years, in which some intelligent control strategy has been applied to industrial control cases, such as genetic algorithm, fuzzy control, expert control and neural network and so on. However, it is not sufficient to achieve the desired control effect if only an intelligent control method is applied in the intelligent control. Therefore, integrated intelligent control of various control strategies is bound to be a focus in the embedded intelligent control. At the same time, with growing power of the PLC processing, it is possible for complex algorithms to be used in the embedded application, which has great significance in the development of industrialization as well as intelligent control.

Design and Research of Air-Compressor Control System Based on Fuzzy PID Control

2011 ◽  
Vol 121-126 ◽  
pp. 773-777 ◽  
Author(s):  
Gong Fa Li ◽  
Si Qiang Xu ◽  
Guo Zhang Jiang ◽  
Po Gao ◽  
Jian Yi Kong ◽  
...  
Keyword(s):  
Control Systems ◽  
Intelligent Control ◽  
Pid Control ◽  
Control Method ◽  
Air Separation ◽  
Fuzzy Pid ◽  
Control Effect ◽  
Fuzzy Pid Control ◽  
Air Compressor ◽  
Separation Systems

According to the requirements and characteristics of air compressor control systems in the process of air separation, an intelligent control method based on the fuzzy PID was proposed. Through simulating the designed control method, it is concluded that the control effect was extraordinarily satisfactory. It can offer a certain meaning of guidance and reference for the control of other equipment in air separation systems.

scholarly journals Experimental Method on “Pseudo Delights” Artwork

2020 ◽  
Vol 6 (2) ◽  
pp. 125-137
Author(s):  
Fr. Retno Setyowati Rahardjo
Keyword(s):  
Urban Communities ◽  
Contemporary Art ◽  
Design Thinking ◽  
Modern Life ◽  
Art And Design ◽  
The Past ◽  
Technological Advances ◽  
Media Applications ◽  
Academic Discourses ◽  
Made In

ABSTRACTIn 1975 Indonesian contemporary art was believed to be born and marked by the occurrence of the “Black December” event which then initiated the Gerakan Seni Rupa Baru Indonesia. Arts academy also swiftly respond to this phenomenon by putting an art experimentation course as their subject in ITB and ASRI Yogyakarta. Another example was made in 1987, a successful experimental exhibition “Pasaraya Dunia Fantasi” which was held Taman Ismail Marzuki being a headline. It is now four decades the development of experimentation medium celebrated even to other non-art disciplines. Being consider of it the author seeks to bring back the methods of the past that have been adapted to the contexts of today's problems and technological advances. In this research will be a study to develop experimentation model by using some reference logic theory such as design thinking method to produce a work. The development of contemporary art and design has not been widely recognized as an interdisciplinary area that could potentially be developed into a sophisticated and cutting-edge work. In contrast, in some academic and art academic discourses, student’s views are narrowed by thickening the barriers between art and design under the pretext of need capitalization of education. Therefore, the author tries to create a method of designing an experimentation work entitled 'Pseudo Delights'. This work has been previously executed and exhibited at the National Gallery. Pseudo Delight is a performative event specially engineered to respond to today's hyper-reality phenomenon. Where the development of information and mass media is celebrated massively. The rise of many social media applications such as Instagram, the urban communities can celebrate the exclusivity of their lives in a virtual gallery freely. As to convince others about the image of their modern life that is considered successful often the image that appears then contain excessive payload or false sign. Something paradoxical to the advancement of information technology today is presenting a lot of fake images has become the era of the death of information itself.  ABSTRAK Pada tahun 1975 seni rupa kontemporer Indonesia diyakini lahir dengan tanda hadirnya peristiwa “Black December” yang kemudian mengawali Gerakan Seni Rupa Baru Indonesia. Akademi seni juga dengan cepat merespon fenomena ini dengan menambahkan mata kuliah eksperimentas seni sebagai salah satu subjek pendidikan seni di ITB dan ASRI Yogyakarta. Contoh lain ada pada tahun 1987 ketika sebuah pameran eksperimental yang sukses "Pasaraya Dunia Fantasi" yang diadakan Taman Ismail Marzuki menjadi berita utama. Sekarang empat dekade lebih pengembangan media eksperimen telah dirayakan bahkan untuk kegiatan disiplin non-seni lainnya. Dengan mempertimbangkan hal itu penulis berusaha untuk mengembalikan metode masa lalu yang telah disesuaikan dengan konteks masalah saat ini dan kemajuan teknologi. Dalam penelitian ini akan dilakukan penelitian untuk mengembangkan model eksperimen dengan menggunakan beberapa teori logika referensi seperti merancang metode berpikir untuk menghasilkan suatu karya. Perkembangan seni dan desain kontemporer belum diakui secara luas sebagai bidang interdisipliner yang berpotensi dikembangkan menjadi karya canggih dan mutakhir. Sebaliknya, dalam beberapa wacana akademis dan seni, pandangan siswa dipersempit dengan mempertebal hambatan antara seni dan desain dengan dalih kapitalisasi kebutuhan pendidikan. Oleh karena itu, penulis mencoba membuat metode merancang karya eksperimen berjudul 'Pseudo Delights'. Karya ini sebelumnya telah dieksekusi dan dipamerkan di Galeri Nasional. Pseudo Delights adalah acara performatif yang dirancang khusus untuk merespons fenomena hiper realitas saat ini. Di mana perkembangan informasi dan media massa dirayakan secara masif. Maraknya banyak aplikasi media sosial seperti instagram, masyarakat perkotaan dapat merayakan eksklusivitas kehidupan mereka di galeri virtual secara bebas. Seperti untuk meyakinkan orang lain tentang citra kehidupan modern mereka yang dianggap sukses sering gambar yang muncul kemudian mengandung muatan berlebihan atau tanda palsu. Sesuatu yang paradoks dengan kemajuan teknologi informasi saat ini adalah menghadirkan banyak gambar palsu yang telah menjadi era kematian informasi itu sendiri.

scholarly journals Proprioceptive Sonomyographic Control: A novel method of intuitive proportional control of multiple degrees of freedom for upper-extremity amputees

2018 ◽  
Author(s):  
Ananya S. Dhawan ◽  
Biswarup Mukherjee ◽  
Shriniwas Patwardhan ◽  
Nima Akhlaghi ◽  
Gyorgy Levay ◽  
...  
Keyword(s):  
Upper Extremity ◽  
Degrees Of Freedom ◽  
Control Method ◽  
Control Strategies ◽  
Myoelectric Control ◽  
End Effector ◽  
Proportional Control ◽  
Multiple Degrees Of Freedom ◽  
Technological Advances ◽  
Novel Method

ABSTRACTTechnological advances in multi-articulated prosthetic hands have outpaced the methods available to amputees to intuitively control these devices. Amputees often cite difficulty of use as a key contributing factor for abandoning their prosthesis, creating a pressing need for improved control technology. A major challenge of traditional myoelectric control strategies using surface electromyography electrodes has been the difficulty in achieving intuitive and robust proportional control of multiple degrees of freedom. In this paper, we describe a new control method, proprioceptive sonomyographic control that overcomes several limitations of myoelectric control. In sonomyography, muscle mechanical deformation is sensed using ultrasound, as compared to electrical activation, and therefore the resulting control signals can directly control the position of the end effector. Compared to myoelectric control which controls the velocity of the end-effector device, sonomyographic control is more congruent with residual proprioception in the residual limb. We tested our approach with 5 upper-extremity amputees and able-bodied subjects using a virtual target achievement and holding task. Amputees and able-bodied participants demonstrated the ability to achieve positional control for 5 degrees of freedom with an hour of training. Our results demonstrate the potential of proprioceptive sonomyographic control for intuitive dexterous control of multiarticulated prostheses.

scholarly journals An Alternative for All-Electric Ships Applications: The Synchronous Reluctance Motor

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Ioannis Ch. Proimadis ◽  
Dionysios V. Spyropoulos ◽  
Epaminondas D. Mitronikas
Keyword(s):  
Control Method ◽  
Control Strategies ◽  
Voltage Source ◽  
Synchronous Reluctance Motor ◽  
Three Phase ◽  
Electric Ship ◽  
Reluctance Motor ◽  
Basic Operating ◽  
Basic Features ◽  
Made In

The three-phase synchronous reluctance motor (SynRM) is presented as a possible alternative in all-electric ship applications. The basic features of this motor with regard to the other types of motors are shown. The structure of the motor and specifically the structure of its rotor are analyzed, while the basic operating principles are presented and references on commonly used control strategies are made. In this paper, a demonstration of a reluctance motor fed by a voltage source inverter (VSI) takes place. To demonstrate the operation of the motor fed by a VSI, an example using a scalar control method is implemented, where harmonic injection PWM (HIPWM) is used to drive the VSI. Experimental results on a commercially available motor are shown, focusing on the harmonic content of the current.

scholarly journals Computationally intelligent modeling and control of fluidized bed combustion process

2011 ◽  
Vol 15 (2) ◽  
pp. 321-338 ◽  
Author(s):  
Zarko Cojbasic ◽  
Vlastimir Nikolic ◽  
Ivan Ciric ◽  
Ljubica Cojbasic
Keyword(s):  
Control Systems ◽  
Fluidized Bed ◽  
Intelligent Control ◽  
Expert Knowledge ◽  
Control Strategies ◽  
Combustion Process ◽  
Process Models ◽  
Fluidized Bed Combustion ◽  
And Control ◽  
Fuzzy Genetic

In this paper modelling and control approaches for fluidized bed combustion process have been considered, that are based on the use of computational intelligence. Proposed adaptive neuro-fuzzy-genetic modeling and intelligent control strategies provide for efficient combining of available expert knowledge with experimental data. Firstly, based on the qualitative information on the desulphurization process, models of the SO2 emission in fluidized bed combustion have been developed, which provides for economical and efficient reduction of SO2 in FBC by estimation of optimal process parameters and by design of intelligent control systems based on defined emission models. Also, efficient fuzzy nonlinear FBC process modelling strategy by combining several linearized combustion models has been presented. Finally, fuzzy and conventional process control systems for fuel flow and primary air flow regulation based on developed models and optimized by genetic algorithms have also been developed. Obtained results indicate that computationally intelligent approach can be successfully applied for modelling and control of complex fluidized bed combustion process.

Research and Application of Vibration Control for Coupled Structures System

2013 ◽  
Vol 278-280 ◽  
pp. 68-71
Author(s):  
Jian Jun Liu ◽  
Kuan Jun Zhu
Keyword(s):  
Literature Review ◽  
Laboratory Test ◽  
Vibration Control ◽  
Neural Control ◽  
Control Method ◽  
Control Strategies ◽  
Engineering Application ◽  
High Rise ◽  
The Past ◽  
Coupled Structures

Over the past three decades, coupled structures vibration research has steadily gained momentum from proposed research concepts to actual implementation. Numerous passive and active control strategies have been considered for low- to high-rise buildings. This paper contains a literature review of coupled structures control, and reviewed from the aspects including neural control method, laboratory test, and engineering application. The existing problem and the future developing in application are also summarized respectively.

FM Verification for the 21 st Century

2008 ◽  
Vol 18 (1) ◽  
pp. 4-9 ◽  
Author(s):  
Leisha Eiten ◽  
Dawna Lewis
Keyword(s):  
Hearing Loss ◽  
Hearing Aids ◽  
Hearing Aid ◽  
Current Technology ◽  
The Past ◽  
Technological Advances ◽  
Children With Hearing Loss

Background: For children with hearing loss, the benefits of FM systems in overcoming deleterious effects of noise, distance, and reverberation have led to recommendations for use beyond classroom settings. It is important that audiologists who recommend and fit these devices understand the rationale and procedures underlying fitting and verification. Objectives: This article reviews previousguidelines for FM verification, addresses technological advances, and introduces verification procedures appropriate for current FM and hearing-aid technology. Methods: Previous guidelines for verification of FM systems are reviewed. Those recommendations that are appropriate for current technology are addressed, as are procedures that are no longer adequate for hearing aids and FM systems utilizing more complex processing than in the past. Technological advances are discussed, and an updated approach to FM verification is proposed. Conclusions: Approaches to verification andfitting of FM systems must keep pace with advances in hearing-aid and FM technology. The transparency approach addressed in this paper is recommended for verification of FM systems coupled to hearing aids.

Sign in / Sign up

Export Citation Format

Share Document