{"title":"Adaptive back–stepping robust control of a 3–[P2(US)] parallel robot on optimal trajectory","authors":"Mahmood Mazare, M. Taghizadeh","doi":"10.15406/iratj.2019.05.00181","DOIUrl":"https://doi.org/10.15406/iratj.2019.05.00181","url":null,"abstract":"Parallel robots are widely used in various fields of engineering and industrial applications such as, machine tools, flight simulators, earthquake simulators, medical equipment and etc. However, they have some limitations such as small and complex workspace, combination of translational and rotational motions and clearance in joints. They are also restricted by other limitations such as existence of singular points which should be studied and analysed for effective and efficient use. Therefore, their complex dynamics and forward kinematics require a very sophisticated real time control.1–3","PeriodicalId":54943,"journal":{"name":"International Journal of Robotics & Automation","volume":"100 4","pages":""},"PeriodicalIF":0.9,"publicationDate":"2019-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72536296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Flight control system design using neural networks","authors":"Mostafa Mjahed","doi":"10.15406/iratj.2019.05.00180","DOIUrl":"https://doi.org/10.15406/iratj.2019.05.00180","url":null,"abstract":"In the last years, several control theories have been widely developed.1–3 They are generally applied to control task such as trajectory tracking and optimization. In most cases, the control approaches are based on linear methods and on the assumption that precise analytical model of the controlled system is available. However, relationships between physical variables are non linear and only represented by discrete numerical tables. Recently, neural networks have been proposed as feed-forward inverse dynamics controllers. In addition, a number of flight control applications illustrated the online learning capability of neural networks.4,5 This paper presents the design of a flight controller using neural networks. Emphasis is placed on the use of a command and stability augmentation system using an off-line trained network. The application is focused on a remotely piloted vehicle (RPV). The paper is organized as follows: Section 2 presents the longitudinal dynamics of a rigid airplane. The third section outlines the principles of a linear controller. The design of a neural controller is given in section 4. The effectiveness of the proposed approach is displayed by simulation results in the case of a longitudinal control.","PeriodicalId":54943,"journal":{"name":"International Journal of Robotics & Automation","volume":"os-13 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2019-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87646779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Creative innovative transformational ecosystem of formation of humane technological society","authors":"E. Bryndin","doi":"10.15406/iratj.2019.05.00179","DOIUrl":"https://doi.org/10.15406/iratj.2019.05.00179","url":null,"abstract":"Innovative processes of society cover economy, the social sphere, policy, education, science, the equipment, production, business and other spheres. In hi–tech society the major role in its development is played by the new ideas and innovations. At an innovative stage of development information and knowledge becomes objects of creative thinking what product the new ideas having big social and economic effect. At the same time after transition to a new stage all achievements of the previous stages remain and develop at higher level. Creativity in the developed society becomes a continuous rule and the main source of competitive advantage. Practically any area of production wins if there is a creative potential. Task of educational institutions to prepare humane hi–tech professionals. Today modern education accepts the strategy of formation of hi–tech humane society.","PeriodicalId":54943,"journal":{"name":"International Journal of Robotics & Automation","volume":"16 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2019-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91136336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Torres, Carlos Eduardo Fatela, A. Baptista, M. J. Martins
{"title":"Optical communication system for military applications","authors":"J. Torres, Carlos Eduardo Fatela, A. Baptista, M. J. Martins","doi":"10.15406/iratj.2019.05.00177","DOIUrl":"https://doi.org/10.15406/iratj.2019.05.00177","url":null,"abstract":"This article deals with the study of intercommunication systems used by satellites that use optical link and its ultimate goal is the construction of an optical receiver in a printed board. The optical receiver was represented by a diagram of blocks. The choice of components was made based on the advantages and disadvantages which have, each one being explained and analyzed. Taking into account the different options that can be carried out for each block, was chosen as the most suitable and beneficial to the entire set of components that the recipient will have. Throughout this article was made an introduction and explanation of each stage of the recipient, as well as of its components. To complement, tests were performed practical on each block, and sometimes the main component in specific to that same block. It is concluded that the modeling and preparation of optical receiver for low frequency, is able to meet all the objectives set forth, may equate this solution to a receiver capable of operating in a satellite in orbit of space.","PeriodicalId":54943,"journal":{"name":"International Journal of Robotics & Automation","volume":"68 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2019-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83873069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Patient skin temperature monitor over internet of things","authors":"Nishesh Yadav","doi":"10.15406/iratj.2019.05.00171","DOIUrl":"https://doi.org/10.15406/iratj.2019.05.00171","url":null,"abstract":"Skin temperature monitoring is not the accurate way for measuring Core Body Temperature, as it varies according to ambient temperature, but still gives a fair estimate of Body Core Temperature. Body temperature can be measured from many locations on your body. The mouth, ear, armpit, and rectum are the most commonly used places. Temperature can also be measured on your forehead. An abnormally low body temperature (hypothermia) can be serious, even life-threatening. Low body temperature may occur from cold exposure, shock, alcohol or drug abuse. Keeping in mind the importance of measuring the body temperature, we need to be precise over this activity.1","PeriodicalId":54943,"journal":{"name":"International Journal of Robotics & Automation","volume":"6 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77515153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"State of the art of actuator and damper for micro-processor controlled prosthetic knee","authors":"Wujing Cao, Yu Hongliu, Yongbing Lv, Weiliang Zhao, Meng Qiaoling","doi":"10.15406/iratj.2019.05.00172","DOIUrl":"https://doi.org/10.15406/iratj.2019.05.00172","url":null,"abstract":"According to the data calculation of the second national handicapped person sampling survey, the sum of disabled people in China is 82.96 million, including 24.12 million physical disabilities and 2.26 million amputees.1 The number of lower limb amputee is about 1.58 million.2 To cope with daily life activities, lower limb amputees require to install lower limb prosthesis. Lower limb prosthesis for a person with transfemoral (above-knee) limb loss includes, at a minimum, a socket, knee, foot, and the necessary pylons or adapters to connect these components.3 The part that has taken the biggest efforts in its development is the knee prosthesis. The knee performs a key role during the whole gait cycle, and this is basically due to the fact that the knee joint sets a leg made of two bodies, articulated between each other through it. This is the case in human body between thigh and shank, being this leg configuration from which it is understood a natural gait. Moreover, this last feature, leaving aside damping and impulse functions of feet, is what makes human gait the most efficient mode of moving human body from one place to another.4 The prosthetic knee is separated by the complexity of their control: mechanically passive, microprocessor controlled passive, and microprocessor controlled active.5 Damping of mechanically passive control knee cannot be changed with different speeds and often characterized by abnormal gait, increasing energy expenditure of amputees to walk. Microprocessor-controlled prosthetic knee are the research focus. The classification of microprocessor-controlled prosthetic knee is shown in Figure 1.","PeriodicalId":54943,"journal":{"name":"International Journal of Robotics & Automation","volume":"74 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90478166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Tandem-X satellite data application to four-dimensional of copper mineralization","authors":"M. Marghany","doi":"10.15406/iratj.2019.05.00170","DOIUrl":"https://doi.org/10.15406/iratj.2019.05.00170","url":null,"abstract":"The TanDEM-X functions are based totally on (i) cross-track two SAR interferometry, (ii) along-track SAR interferometry and (iii) new SAR techniques. The three radar strategies evolve from the machine specification described with the aid of the TerraSAR-X satellite and the interferometric configuration itself. Owing to its manifold machine configurations, TanDEM-X is a bendy and multi-mode mission, which grants a broad variety of application possibilities. Dual Acrosstrack SAR interferometry is an identified method to decide the terrain topography. The usage of this technique is mounted for the calculation of phase variances calculated with two SAR antennas separated by a terrific baseline. This permits approximating the radar elevation angle to the phase centre of every photo decision cell, where the height facts are derived from the interferometric section alternate.1,2 Dual Alongtrack SAR interferometry is used to compute the velocities of shifting objects, which are a feature of a segment modification measurement whereby the two SAR antennas achieve complex SAR photographs of the identical location with a quick time lag. Therefore, new SAR strategies will establish the possibility of superior SAR systems that have yet now not or only incompletely been mounted on the ground or with aeroplanes.","PeriodicalId":54943,"journal":{"name":"International Journal of Robotics & Automation","volume":"2005 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2019-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86540981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Reliable 4G communication systems design using ldpc codes","authors":"M. Rana","doi":"10.15406/iratj.2019.05.00169","DOIUrl":"https://doi.org/10.15406/iratj.2019.05.00169","url":null,"abstract":"There has been considerable activity toward the definition of next generation wireless local area networks (WLANs), which are expected to offer high‒speed Internet services with data rates exceeding 100 Mb/s and bring WLANs that are on par with wired Ethernet technology. However, the development of high data rate WLAN communication systems must cope with several implementation challenges, such as multipath fading as well as interference with limited transmission bandwidth and power. Now, it has been demonstrated that, for the predefined power and bandwidth, employing multiple transmit and receive antennas in an orthogonal frequency‒division multiplexing (OFDM) system channels while minimizing equalization and symbol decoding complexity.1","PeriodicalId":54943,"journal":{"name":"International Journal of Robotics & Automation","volume":"14 4 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2019-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81897234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Controllers comparison to balancing and trajectory tracking a two wheeled mobile robot","authors":"A. Abougarair","doi":"10.15406/iratj.2019.05.00168","DOIUrl":"https://doi.org/10.15406/iratj.2019.05.00168","url":null,"abstract":"This paper presents an optimal controller design using three different algorithms for trajectory tracking of Two Wheeled Balancing Mobile Robot (TWBMR). All the proposed algorithms have been investigated through simulations under the influence of different inputs tracking and exogenous disturbance. This attempts to validate the significance of these algorithms in balance regulation and tracking trajectory. These algorithms are represented by PID-PID based parallel dual feed-back, serial dual feed-back and hybrid optimal control using Feed-forward PID and Feed-back LQR. Simulation results are provided to demonstrate that, the hybrid controller can achieve a better robust performance in comparing to the other two design algorithms. The graphical user interface (GUI) software has been used to show the simulation results in more convenient way.","PeriodicalId":54943,"journal":{"name":"International Journal of Robotics & Automation","volume":"C-20 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2019-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85071702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Robotic process automation in healthcare-a review","authors":"Roheet Bhatnagar, Dhruv Batra","doi":"10.15406/iratj.2019.05.00164","DOIUrl":"https://doi.org/10.15406/iratj.2019.05.00164","url":null,"abstract":"Robotic process automation (or RPA) is an emerging form of business process automation technology based on the notion of software robots or artificial intelligence (AI) workers.1 RPA is software based automation approach which automates the business processes by understanding the existing processes & practices. In essence, it is software which mimics the virtual human workforce and performs the tasks & activities which are repetitive in nature reducing the involvement of human in the process. Today the business world is extremely competitive and everyone wants to be ahead of its competitor for gaining the advantage. Hence, the RPA technology is proving to be effective in increasing profitability, efficiency of the business houses when certain recurrent processes are automated. This type of automation help the human employees to focus on more critical tasks, be more innovative and devote time to enhance their knowledge & skills in the domain. Planning, Implementation and Monitoring & Evaluation are the three major phases of any RPS project. RPA is considered to be a significant technological evolution of this technique in the sense that new software platforms are emerging which are sufficiently mature, resilient, scalable and reliable to make this approach viable for use in large enterprises.2 Researchers opine that RPA will usher in a new wave of productivity & efficiency gains in the global workforce once the technology becomes more matured and stable in the coming decade or so.3 RPA is proving to be the technology of future and its goal is to provide a sustainable solution that reduces costs and delivery time, improves quality, speed and operational efficiency of a business process.","PeriodicalId":54943,"journal":{"name":"International Journal of Robotics & Automation","volume":"1 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2019-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81532346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}