Temat: mobile control - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Heating control of a finite rod with a mobile source
Autorzy:: Jilavyan, Samvel H.
Grigoryan, Edmon R.
Khurshudyan, Asatur Zh.
Powiązania:: https://bibliotekanauki.pl/articles/1409386.pdf
Data publikacji:: 2021
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: null-controllability
mobile control
nonlinear constraints
triangular wave
rectangular wave
Green’s function approach
heuristic control
lack of exact controllability
Opis:: The Green’s function approach is applied for studying the exact and approximate null-controllability of a finite rod in finite time by means of a source moving along the rod with controllable trajectory. The intensity of the source remains constant. Applying the recently developed Green’s function approach, the analysis of the exact null-controllability is reduced to an infinite system of nonlinear constraints with respect to the control function. A sufficient condition for the approximate null-controllability of the rod is obtained. Since the exact solution of the system of constraints is a long-standing open problem, some heuristic solutions are used instead. The efficiency of these solutions is shown on particular cases of approximate controllability.
Źródło:: Archives of Control Sciences; 2021, 31, 2; 417-430
1230-2384
Pojawia się w:: Archives of Control Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Influence of PWM to trajectory accuracy in mobile robot motion
Autorzy:: Beniak, R.
Pyka, T.
Powiązania:: https://bibliotekanauki.pl/articles/384557.pdf
Data publikacji:: 2012
Wydawca:: Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:: mobile robot control
kinematic and dynamic control
castor sliding wheel
pulse width modulation (PWM)
Opis:: The paper compares simulation results for direct and PWM control of DC motors in a tri-wheel mobile robot with a castor sliding wheel. Our aim was to determine to what extent PWM control changes the trajectory accuracy. For this purpose, we compare kinematic and dynamic control. To make the model more realistic, we considered the impact of viscous and rolling friction of driving wheels on the motion along the trajectory. We conclude that dynamic control is of higher quality as compared to kinematic control, and that there is a significant impact of PWM control on the trajectory accuracy.
Źródło:: Journal of Automation Mobile Robotics and Intelligent Systems; 2012, 6, 4; 50-56
1897-8649
2080-2145
Pojawia się w:: Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Control system architecture for the investigation of motion control algorithms on an example of the mobile platform Rex
Autorzy:: Janiak, M.
Zieliński, C.
Powiązania:: https://bibliotekanauki.pl/articles/202080.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: mobile robot control
robot control architecture
robot control system specification
platforma mobilna Rex
robot
system kontroli
Opis:: This paper presets the specification and implementation of the control system of the mobile platform Rex. The presented system structure and the description of its functioning result from the application of a formal method of designing such systems. This formalism is based on the concept of an embodied agent. The behaviours of its subsystems are specified in terms of transition functions that compute, out of the variables contained in the internal memory and the input buffers, the values that are inserted into the output buffers and the internal memory. The transition functions are the parameters of elementary actions, which in turn are used in behaviour patterns which are the building blocks of the subsystems of the designed control system. Rex is a skid steering platform, with four independently actuated wheels. It is represented by a single agent that implements the locomotion functionality. The agent consists of a control subsystem, a virtual effector and a virtual receptor. Each of those subsystems is discussed in details. Both the data structures and the transition functions defining their behaviours are described. The locomotion agent is a part of the control system of the autonomous exploration and rescue robot developed within the RobREx project.
Źródło:: Bulletin of the Polish Academy of Sciences. Technical Sciences; 2015, 63, 3; 667-678
0239-7528
Pojawia się w:: Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Low-cost remote dosing system for carbon dioxide level control in the undercover cultivation
Autorzy:: Idziak, P.
Waszak, S.
Powiązania:: https://bibliotekanauki.pl/articles/101317.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:: carbon dioxide level
undercover tunnels
microcomputer type Raspberry Pi
remote control via mobile phone
Opis:: The article presents the possibility of using a cell phone to control the level of carbon dioxide in undercover tunnels and greenhouses. Studies show that increasing the level of carbon dioxide in the air under covers results in a significant increase in the yield of the crops produced. The proposed system is autonomous. Its essential element is the multimedia Raspberry Pi platform. Under the manufacturer’s assumptions, the Raspberry Pi is a microcomputer designed primarily for the operation of audio-visual equipment. It can also be used to build simple measurement systems and control systems such as the access control system. This article describes the basic features of the platform along with the extended modules. The proposed application is used to measure the CO2 content in the air in the cultivation tunnel. The system also measures temperature and relative humidity. The measured values are compared with the threshold values and the report is sent to the mobile phone selected by the user. The developed program reports on the values recognised as threshold ones. In response to the information received, the user may decide to remotely enable the increase of CO2 content in the air under cover. The motion sensor integrated with the system informs the user of the unauthorized entry into the controlled area. The latter element is considered a security element. While designing the system, a cost-minimisation principle of its adaptation was taken into account.
Źródło:: Infrastruktura i Ekologia Terenów Wiejskich; 2017, IV/1; 1343-1358
1732-5587
Pojawia się w:: Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: A Behaviour-Based Control and Software Architecture for the Visually Guided Gobudem Outdoor Mobile Robot
Autorzy:: Doroftei, D.
Colon, E.
De Cubber, G.
Powiązania:: https://bibliotekanauki.pl/articles/384889.pdf
Data publikacji:: 2008
Wydawca:: Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:: control
mobile robot
software architecture
Opis:: The design of outdoor autonomous robots requires the careful consideration and integration of multiple aspects: sensors and sensor data fusion, design of a control and software architecture, design of a path planning algorithm and robot control. This paper describes partial aspects of this research work, which is aimed at developing a semiautonomous outdoor robot for risky interventions. This paper focuses on three main aspects of the design process: visual sensing using stereo vision and image motion analysis, design of a behaviourbased control architecture and implementation of modular software architecture.
Źródło:: Journal of Automation Mobile Robotics and Intelligent Systems; 2008, 2, 4; 19-24
1897-8649
2080-2145
Pojawia się w:: Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Design and Evaluation of Simple UI for Mobile Healthcare Application
Autorzy:: Ito, A.
Powiązania:: https://bibliotekanauki.pl/articles/226292.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: mobile healthcare application
weight control
metabolic syndrome
mobile persuasion
Opis:: In 2008, the Japanese government enacted a new healthcare law that requires companies to reduce the weight of overweight employees suffering from so-called metabolic syndrome, and the weight of their spouses. In 2013, companies that fail to reduce the weight of their employees and their spouses will be penalized. So, companies aim to introduce tools to support to loose weight. At first, we developed the first version of mobile application, named HIPPO (Healthcare Information Platform Project), to support to loose weight in 2007. This application worked well during two months and 76% of users whose BMI was 25 or over lost their weight. However, this problem was that many users could not continue to use this application and users who could continued to use this application could loose weight. We thought that to develop application that made user continue to use was important. So, in 2008, redesigned the system architecture and application from three view points, (1) Address real user needs, (2) Rethink and streamline the data-entry model for food and exercise, (3) Make the user experience personal and engaging. We designed one simple application with limited functions and use email as a support tool. As the result, 84% of uses could continue to use the second generation application.
Źródło:: International Journal of Electronics and Telecommunications; 2013, 59, 3; 263-270
2300-1933
Pojawia się w:: International Journal of Electronics and Telecommunications
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Adaptive handover control in IP-based mobility networks
Autorzy:: Park, T.
Dadej, A.
Powiązania:: https://bibliotekanauki.pl/articles/307727.pdf
Data publikacji:: 2003
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: mobile networking
Mobile IP
handover performance
adaptive handover control
Opis:: In this paper, we propose framework for an adaptive handover control architecture (AHCA), which aims at enhancing overall IP handover performance while maximising utilisation of resources in wireless access networks. The IP handover procedures in the AHCA adapt dynamically to network conditions, as well as to a wide range of user profiles and application quality of service (QoS) requirements. To confirm our expectations that the AHCA will bring performance benefits in heterogeneous mobile IP networking environment, we have investigated basic performance characteristics of different handover mechanisms. The preliminary simulation results demonstrate that the AHCA will bring significant performance improvements as compared with non adaptive IP handovers.
Źródło:: Journal of Telecommunications and Information Technology; 2003, 2; 62-70
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Remote building control using the bluetooth technology
Autorzy:: Piasecki, A.
Trzmiel, G.
Powiązania:: https://bibliotekanauki.pl/articles/97397.pdf
Data publikacji:: 2016
Wydawca:: Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:: Bluetooth
remote building control
mobile device
Opis:: In this paper, a reference is made to the subject of remote control of certain parts of a residential building via Bluetooth using the mobile device. In the first place, the wireless data transmission via Bluetooth is described. Then, the paper deals with the design of the building and the electronic system based on a microcontroller from the ATmega family that communicates with mobile devices via Bluetooth wireless data transmission. The design includes lightning system, roller blinds, a fan and a garage door. The control is based on the system consisting of a triac and an opto–triac. In addition to this, a control application for Android system is created to enable the remote control by means of a mobile device.
Źródło:: Computer Applications in Electrical Engineering; 2016, 14; 457-468
1508-4248
Pojawia się w:: Computer Applications in Electrical Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Methodology of control and supervision of web connected mobile robots with CUDA technology application
Autorzy:: Będkowski, J.
Masłowski, A.
Powiązania:: https://bibliotekanauki.pl/articles/384757.pdf
Data publikacji:: 2011
Wydawca:: Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:: mobile robot
cognitive control and supervision
Opis:: The main problem of the following paper is control and supervision of web connected mobile robots. Taking up this subject is justified by the need of developing new methods for control, supervision and integration of existing modules (inspection robots, autonomous robots, mobile base station). The methodology consists of: multi robotic system structure, cognitive model of human supervisor structure, system algorithms and cognitive model algorithms. The research problem comprises web connected mobile robots system development structure with exemplification based on inspection-intervention system. The modelling of human supervisor's behaviour is introduced. Furthermore, the structure of a cognitive model of human supervisor with the application of the new NVIDIA CUDA technology for parallel computation is proposed. The results of experiments performed in real, virtual and hybrid environments are discussed. The methodology is verified by exemplification based on a system composed of autonomous mobile robot ATRVJr and robot INSPECTOR.
Źródło:: Journal of Automation Mobile Robotics and Intelligent Systems; 2011, 5, 2; 3-11
1897-8649
2080-2145
Pojawia się w:: Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Design and Movement Control of a 12-Legged Mobile Robot
Autorzy:: Rysiński, J.
Gola, B.
Kopeć, J.
Powiązania:: https://bibliotekanauki.pl/articles/384992.pdf
Data publikacji:: 2015
Wydawca:: Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:: mobile robot
design
control
kinematic analysis
Opis:: In the present paper, design and performance of 12-legged walking robot is described. The complete technical specification was developed for the proposed solution. The analysis of stability of the robot movements was undertaken. Communication between robot and operator is based on remote control procedures performed by means of own software which is written in versions for smartphone or desktop computer. The software version for desktop computers has additional useful features i.e. monitoring of the area of robot work/activity via a wireless camera mounted on fore side of the robot.
Źródło:: Journal of Automation Mobile Robotics and Intelligent Systems; 2015, 9, 4; 39-47
1897-8649
2080-2145
Pojawia się w:: Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: The Application of Mobile Robots for Building Safety Control
Autorzy:: Siemiatkowska, B.
Hrasymowicz-Boggio, B.
Wisniowski, M.
Powiązania:: https://bibliotekanauki.pl/articles/950822.pdf
Data publikacji:: 2016
Wydawca:: Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:: mapping
classification
control
mobile robot
safety
Opis:: In this article we propose the application of service mobile robots for control of building safety parameters. Indoor mobile robots are becoming a reality and their availability and applications are expected to grow rapidly in the near future. Such robots are usually equipped with cameras and laser range finders, which could be used to detect hazardous situations in their operating environment, such as evacuation route obstructions, emergency sign occlusions or accumulation of dangerous materials. We demonstrate how these safety-related augmentations of a mobile robot system can be achieved with few additional resources and validate experimentally the concept using an indoor robot for emergency sign and evacuation route control.
Źródło:: Journal of Automation Mobile Robotics and Intelligent Systems; 2016, 10, 2; 9-14
1897-8649
2080-2145
Pojawia się w:: Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: State of the Art in Predictive Control of Wheeled Mobile Robots
Autorzy:: Harasim, P.
Trojnacki, M.
Powiązania:: https://bibliotekanauki.pl/articles/384731.pdf
Data publikacji:: 2016
Wydawca:: Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:: wheeled mobile robot
motion control
predictive control
model-based control
optimization
Opis:: The paper is concerned with the problem of tracking control of wheeled mobile robots (WMRs) using predictive control systems. Various kinematic structures of WMRs important from the point of view of motion control are discussed. A hierarchical approach to the problem of motion control of this kind of robots is presented. The problems of trajectory tracking and path following control of WMRs are briefly discussed. The methods of predictive control of WMRs are described in detail and the following aspects relevant to predictive control are considered: kinematic structures of robots, slip of wheels and its compensation, assumed constraints, methods of optimization of the objective function, problems of model nonlinearity, linearization and discretization, stability of the control system and use of the state observers.
Źródło:: Journal of Automation Mobile Robotics and Intelligent Systems; 2016, 10, 1; 34-42
1897-8649
2080-2145
Pojawia się w:: Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Tuning of characteristics of dynamic driving suspensions in an autonomous robot with omnidirectional wheels
Autorzy:: Duda, Sławomir
Gembalczyk, Grzegorz
Klein, Wojciech
Dudek, Olaf
Powiązania:: https://bibliotekanauki.pl/articles/2086973.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: passive suspensions
control of vibration
mobile robots
Opis:: The article presents results of a research and development work on a suspension of an autonomous mobile robot with omnidirectional wheels. At the beginning, the research object and requirements for suspensions in mobile platforms are discussed. In the following part, a computational model used in the optimization process is presented. An important issue was to determine kinematic excitations generated by omnidirectional wheels, which was identified experimentally and used in numerical calculations. The obtained results were experimentally verified by tests with a prototype suspension node which was mounted on the “vehicle quarters” test stand.
Źródło:: Journal of Theoretical and Applied Mechanics; 2022, 60, 2; 293--302
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Fuzzy reactive control of wheeled mobile robot
Rozmyte sterowanie odruchowe mobilnego robota kołowego
Autorzy:: Hendzel, Z.
Powiązania:: https://bibliotekanauki.pl/articles/281987.pdf
Data publikacji:: 2004
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: behaviour control
fuzzy logic
wheeled mobile robots
Opis:: This paper proposed a sensor based navigation method with a fuzzy combiner for navigation of a mobile robot in uncertain environments. We discuss a fuzzy approach to path design and control of simple individual behaviours of a wheeled mobile robot in an unknown 2D environment with static obstacles. A strategy of reactive navigation is developed including three main behaviours: reaching the middle of a collision-free space behaviour, goal-seeking behaviour and wall-following behaviour. These simple individual behaviours are achieved by means of fuzzy inference systems. It is assumed that each low-level behaviour has been well developed at the design stage and then fused by the fuzzy combiner of behaviours to determine proper actions acting on the environment at the running stage. The fuzzy combiner can fuse low-level behaviours so that the mobile robot can go for the goal position without colliding with obstacles. The fuzzy combiner is a soft switch that chooses more than one low-level action to be active with different degrees through fuzzy combination at each time step. The output of the navigation level is fed into a fuzzy tracking controller that takes into account the dynamics of the mobile robot. A computer simulation have been conducted to illustrate the performance of these proposed fuzzy combiner of behaviours by a series of experiments on an emulator of the wheeled mobile robot Pioneer-2DX.
W pracy analizuje się zagadnienie nawigacji odruchowej mobilnego robota kołowego w nieznanym otoczeniu. Przedstawiono rozmyte podejście do projektowania trajektorii ruchu i sterowania prostych indywidualnych zachowań mobilnego robota kołowego w nieznanym środowisku dwuwymiarowym ze statycznymi przeszkodami. Stategię odruchowej nawigacji zastosowano do realizacji trzech elementarnych zachowań: osiągnij środek wolnej przestrzeni, idź do celu, podążaj przy ścianie. Powyższe elementarne zachowania zrealizowano stosując układy z logiką rozmytą. Zakłada się że każde z elementarnych zachowań realizowane przez niższy poziom sterowania jest poprawnie zaprojektowane, a ich koordynacja odbywa się na wyższym poziomie hierarchii sterowania przez rozmyty układ koordynacyjny, którego zadaniem jest wygenerowanie właściwych sterowań umożliwiających realizację zadania nawigacji. Rozmyty układ koordynacji elementarnych zachowań łączy te zachowania generując zadaną trajektorię ruchu wybranego punktu mobilnego robota kołowego. Trajektoria ta jest realizowana przez układ niskiego poziomu sterowania ruchem nadążnym mobilnego robota kołowego uwzględniającym dynamikę obiektu sterowania. W celu weryfikacji zaproponowanego rozwiązania przeprowadzono symulacje komputerowe na emulatorze mobilnego robota Pionner-2DX.
Źródło:: Journal of Theoretical and Applied Mechanics; 2004, 42, 3; 503-517
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Optimal sliding control of mobile manipulators
Autorzy:: Galicki, M.
Powiązania:: https://bibliotekanauki.pl/articles/201159.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: mobile manipulator
trajectory tracking
finite time control
Opis:: The paper adresses optimal control problem of mobile manipulators. Dynamic equations of those mechanisms are assuemd herein to be uncertain. Moreover, unbounded disturbances act on the mobile manipulator whose end-effector tracks a desired (reference) trajectory given in a task (Certesian) space. A compytionally efficient class of two-stage cascaded (hierarchchical) control algotithms based on both the transpose Jacobian matrix and transpose actuation matrix, has been proposed. The offered control laws involve to kinds of non-singular terminal sliding mode (TSM) manifolds, which were also introduced in the paper. The proposed class of cooperating sub-controllers is shown to be finite time stable be fulfilment of practically reasonable assumptions. The performance of the proposed control strategies is illustated on an exemplary mobile manipulator whose end-effector tracks desired trajectory.
Źródło:: Bulletin of the Polish Academy of Sciences. Technical Sciences; 2019, 67, 4; 777-788
0239-7528
Pojawia się w:: Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:: Biblioteka Nauki

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