Ograniczanie wyników
Czasopisma help
Autorzy help
Lata help
Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
Powiadomienia systemowe
  • Sesja wygasła!
  • Sesja wygasła!

Znaleziono wyników: 40

Liczba wyników na stronie
first rewind previous Strona / 2 next fast forward last
Wyniki wyszukiwania
Wyszukiwano:
w słowach kluczowych:  Unmanned Ground Vehicle
help Sortuj według:

help Ogranicz wyniki do:
first rewind previous Strona / 2 next fast forward last
EN
Implementing unmanned solutions in combat operations transforms battlefield dynamics by minimizing human risks. This study focuses on improving the ballistic protection of key elements in unmanned vehicles to enhance their mobility in hazardous areas. Advancements in unmanned ground vehicle technologies are described. The benefits of developing optionally unmanned vehicles for special purposes are indicated. The high- mobility manned-unmanned TAERO vehicle is introduced, and its structure and parameters are described. Operational limitations arising from potential threats during military missions are identified. Critical components requiring ballistic protection are selected, and the necessary protection levels are defined. Available materials for additional ballistic protection are described in relation to the NATO STANAG 4569 standard, which applies to logistic and light armored vehicles. Numerical analysis was conducted to evaluate the protection of key vehicle components using the lightest composite armors. This study is crucial for validating the effectiveness of the selected composite material and ensuring that its implementation meets the required standards for providing the desired level of ballistic protection for unmanned vehicles. The results confirm that the proposed solution improves the TAERO mobility in dangerous zones.
EN
The article presents the issue of operating unmanned ground (UGVs) and aerial vehicles (UAVs) in military use. The threats related to the use of unmanned vehicles, especially the armed ones, operating in the vicinity of own troops were discussed. Additional problems related to the use of unmanned vehicles made in Dual Use technology were presented. A proposed solution was presented in the form of a scope and outline of necessary tests for all vehicles implemented into the Armed Forces, and in particular a modification of such a scope for products made in Dual Use technology. The research infrastructure of the Military Institute of Armor and Automotive Technology used in research on unmanned vehicles and their specialized equipment is presented. In preparing the article, publicly available materials and conclusions from the ongoing war in Ukraine were also used.
EN
The evaluation of collision avoidance strategies for special - purpose unmanned ground vehicles (UGVs) operating in dynamic environments with human presence is presented in this study. The autonomous wheeled vehicle equipped with an armament module for combat and reconnaissance tasks is described considering mission specifications and off-road usage scenarios. The main operational parameters are outlined, and the obstacle detection features integrated into the PERUN vehicle are introduced. The control system architecture is presented, along with installed sensors and their perception capabilities of surround ing object detection. Safety considerations in operational conditions where human presence force appropriate collision avoidance actions are discussed. Real field tests conducted in diverse weather and environmental conditions, such as industrial area and unstructured terrains, are shown to demonstrate the system's performance. Carried out tests show that the collision avoidance system enables obstacle detection and proving the effectiveness of steering strategies for the platform's navigation. The safe operation of unmanned systems in environments with human presence is crucial for the successful deployment and scalability of UGV technologies.
4
Content available Evacuation of the Injured Using Unmanned Systems
EN
This article explores the use of unmanned systems for evacuating wounded personnel from the battlefield. It focuses on conclusions drawn from conventional medical evacuation methods, particularly when wounded soldiers are still in the enemy’s operational zone, following the principles of Tactical Combat Casualty Care (TCCC). Then, general conditions of the injured were determined, which would require evacuation to a safe zone. This allowed us to define the critical capabilities needed for unmanned systems to perform these tasks. The ability of the unmanned system to pick up an injured person who is unconscious and unable to cooperate was identified as crucial. In the further part of the work, existing unmanned systems intended for rescue tasks were collected and critically analysed.
PL
W artykule przedstawiono możliwości w zakresie wykorzystania systemów bezzałogowych przeznaczonych do ewakuacji rannych z pola walki. Skupiono się przy tym na wnioskach wynikających z zasad prowadzenia ewakuacji medycznej metodami konwencjonalnymi, w szczególności podczas gdy ranni żołnierze nadal znajdują się w strefie działań przeciwnika, zgodnie z wymaganiami TCCC (Tactical Combat Casualty Care). Następnie określono stany ogólne poszkodowanego, w jakich może się on znaleźć, a które będą powodowały, że konieczna jest jego ewakuacja do strefy bezpiecznej. Umożliwiło to w efekcie zdefiniowanie krytycznych zdolności jakie powinien posiadać system bezzałogowy przeznaczony do realizacji tych zadań. Jako kluczową zidentyfikowano zdolność systemu bezzałogowego do podjęcia rannego nieświadomego i niezdolnego do współpracy. W dalszej części pracy zebrano i przeanalizowano w sposób krytyczny istniejące systemy bezzałogowe przeznaczone do zadań ratowniczych.
EN
The study analyses challenges faced by robots used by EOD subunits, their working conditions, and possible damage during operations. The literature review takes into account long-term and incidental loads on the undercarriage and drive systems, which affect the functionality and durability of these robots. Moreover, the limitations and advantages of additive technology in restoring the functionality of these machines were verified, taking into account the operational environment of EOD subunits.
PL
W pracy dokonano analizy wyzwań, jakie stoją przed robotami znajdujących się na wyposażeniu pododdziałów EOD, ich warunków pracy oraz możliwych uszkodzeń w trakcie prowadzonych operacji. Przegląd literaturowy uwzględnia długotrwałe i incydentalne obciążenia układów jazdy oraz napędowego, które wpływają na funkcjonalność i trwałość tych robotów. Ponadto zweryfikowano ograniczenia i możliwości technologii addytywnej w zakresie przywracania właściwości operacyjnych tych maszyn, uwzględniając środowisko operacyjne pododdziałów.
6
Content available Low-cost small-scale autonomous vehicle
EN
A low-cost small-scale autonomous vehicle refers to a self-driving vehicle that is designed to be affordable and suitable for smaller applications or specific purposes. In this study, the firefly algorithm was utilized to address obstacle avoidance challenges in the presence of dynamic or statically positioned uncertain obstacles. The autonomous vehicle successfully reached the intended destination, demonstrating a satisfactory level of accuracy. Regardless of the starting point, the vehicle arrived at the predetermined position within an area measuring 5 meters in diameter. The achievement of such results can be attributed to the cost-effective selection of sensors, utilization of a simple algorithm, and the implementation of a moderately powered processor and circuit components.
EN
The objective of this work is to assess the possibility of driving unmanned vehicles in a convoy, depending on the vehicle type (wheeled or tracked, level 0, according to SAE J3016), and the mutual coincidence with a human-controlled vehicle in accordance with the driving scenario adopted. The assessment is based on tests carried out while driving the vehicles along a designated route and measuring the physical quantities that describe the vehicles’ motion, such as the components of the velocity vectors and distances between the vehicles. The tests were carried out on a safe training ground, using inertial-satellite devices mounted on the vehicles; they provide a good basis for planning the minimum passage corridor for a column of vehicles. During the tests, the expected distances between the vehicles were recorded and analyzed depending on the above-mentioned types of the vehicles; based on that, the possibility of using the technology in the carrying out of various missions for the needs of the tactical level units of the Polish Armed Forces was preliminarily assessed. The required lane width for the safe passage of Target 1, Hunter and Target 2 vehicles along the designated routes was calculated, taking into account the external dimensions of the vehicles, the additional widths associated with the vehicles' yaw angles and the maximum lateral distances between the vehicles. During tests of a convoy of remote-controlled vehicles, maintaining a speed of 1.5 m/s and a distance of 10 m, the requirements for the lane width for safe passage were analyzed. The largest lateral gaps were observed between Target 2 and Hunter vehicles, which may affect the planning of the convoy route. The differences in lane width between the two tests were due to the yaw angles of the vehicles and their different dimensions and drive types. In the first test, the lane width for Target 1 and Hunter was 5.50 m and for Target 2 3.70 m; in the second test it was reduced to 3.73 m and increased to 3.75 m, respectively
EN
Unmanned aerial vehicle (UAV) is a typical aircraft that is operated remotely by a human operator or autonomously by an on-board microcontroller. The UAV typically carries offensive ordnance, target designators, sensors or electronic transmitters designed for one or more applications. Such application can be in the field of defence surveillance, border patrol, search, bomb disposals, logistics and so forth. These UAVs are also being used in some other areas, such as medical purposes including for medicine delivery, rescue operations, agricultural applications and so on. However, these UAVs can only fly in the sky, and they cannot travel on the ground for other applications. Therefore, in this paper, we design and present the novel concept-based UAV, which can also travel on the ground and rough terrain as an unmanned ground vehicle (UGV). This means that according to our requirement, we can use this as a quadcopter and caterpillar wheel–based UGV using a single remote control unit. Further, the current study also briefly discusses the two-dimensional (2D) and three-dimensional (3D) SolidWorks models of the novel concept-based combined vehicle (UAV + UGV), together with a physical model of a combined vehicle (UAV + UGV) and its various components. Moreover, the kinematic analysis of a combined vehicle (UAV + UGV) has been studied, and the motion controlling kinematic equations have been derived. Then, the real-time aerial and ground motions and orientations and control-based experimental results of a combined vehicle (UAV + UGV) are presented to demonstrate the robustness and effectiveness of the proposed vehicle.
EN
The article presents some objectives and results of the European Defense Agency Program on: Improvised Explosive Devices Detection (IEDDET Program). The goal of the article is to describe the work, results and recommendations regarding Unmanned Ground Vehicle (UGV) and Ground Penetrating Radar (GPR) - contributions within the MUSICODE project. Its scope and goals were presented, which are in line with the objectives of the IEDDET Program taking into consideration that the recommendations (for UGV and GPR) are related to the goals, not the results of MUSICODE project. There were described scenarios and the resulting changes in the structure implemented in the UGV - the FLORIAN robot which served as a sensors carrier including Ground Penetrating Radar (GPR). The main focus of the article is to find the answer to the research question: what is an impact of using the GPR to be mounted on the UGV to detect improvised explosive devices (IEDs) on the UGV construction and the GPR results. The structure of this radar was described and examples of tests results were presented. The summary presents recommendations for the construction of an unmanned land platform to carry sensors used in the work carried out in the MUSICODE project and conclusions regarding GPR, resulting from the experiences gained under the IEDDET Program.
EN
Small autonomous surface vehicles (ASV) will need both teleoperation support and redundant positioning technology to comply with expected future regulations. When at sea, they are limited by a satellite communication link with low throughput. We have designed and implemented a graphical user interface (GUI) for teleoperation using a communication link with low throughput, and one positioning system, independent of the Global Positioning System (GPS), supported by the teleoperation tool. We conducted a user study (N=16), using real-world data from a field trial, to validate our approach, and to compare two variants of the graphical user interface (GUI). The users experienced that the tool gives a good overview, and despite the connection with the low throughput, they managed through the GUI to significantly improve the positioning accuracy.
EN
Unmanned vehicles occupy more and more space in the human environment. Mobile robots, being a significant part thereof, generate high technological requirements in order to meet the requirements of the end user. The main focus of the end users both in civil, and so called “defense and security” areas in the broadly defined segments of the construction industry should be on safety and efficiency of unmanned vehicles. It creates some requirements for their drive and control systems being supported among others by vision, communication and navigation systems. It is also important to mention the importance of specific design of manipulators to be used to fulfill the construction tasks. Control technologies are among the critical technologies in the efforts to achieve these requirements. This paper presents test stations for testing control systems and remote control system for work tools in the function of teleoperator using the CAN bus and vehicles which use hydrostatic drive systems based on the Controller Area Network (CAN) standard. The paper examines the potential for using a CAN bus for the control systems of modern unmanned ground vehicles that can be used in construction, and what limitations would possibly prevent their full use. It is exactly crucial for potential users of unmanned vehicles for construction industry applications to know whether their specific requirements basing on the tasks typical in construction [9] may be fulfilled or not when using the CAN bus standard.
EN
Article presents comparison of the energetic balance of vehicle powertrain - pure electric vehicle and vehicle equipped with electric hybrid power transmission. Society is more and more often persuaded to buy electric cars as an environmentally friendly solution because they have opinion of ecological vehicles. Electrification in military applications is also widely considered, especially in case of small to medium UGV’s such as wide range of robotic systems introduced to the milatary operations. The article presents the problems of comparing the efficiency and others parameters such as the range of a two presented powertrains. The research was carried out on an small unmanned land platform equipped with a hybrid propulsion system supplied as standard with Diesel power generator and electrically only powered. Energy used for charging of the battery, from tank-to-wheel, was calculated. This also enables to calculate total efficiency of electric and hybrid power transmission. By calculating different capacity of battery and power of generator, it is possible to determine the vehicle range.
13
Content available remote Metody lokalizacji małych pojazdów autonomicznych w pomieszczeniach zamkniętych
PL
Estymacja swojej pozycji przez pojazdy bezzałogowe jest kluczowa dla pomyślnego przeprowadzania misji rozpoznawczych, zaopatrzeniowych czy ratunkowych w trybie autonomicznym. Wyznaczanie celów i punktów kontrolnych misji pozwala operatorowi platformy, ale również algorytmom decyzyjnym, na podejmowanie odpowiednich działań. W artykule przedstawiono popularne metody lokalizacji wewnątrz pomieszczeń zamkniętych z niedostępnym sygnałem nawigacji GNSS. Potencjał wykorzystania takich technologii, jak UWB, US, INS czy algorytmów SLAM opartych o odczyty z LiDAR-ów lub kamer został omówiony w kontekście małych platform lądowych, które potrafią wykonywać określone zadania w sposób zautomatyzowany. Artykuł omawia również rozwiązania opisywane szczegółowo w cytowanej literaturze związane z tematem fuzji danych z sensorów różnego typu, która zapewnia większą dokładność i niezawodność uzyskiwanych odczytów.
EN
The estimation of their position by unmanned vehicles is crucial for successful reconnaissance, procurement and rescue missions in autonomous mode. Determining goals and mission checkpoints allows the platform operator, and also the decision-making algorithms, to take appropriate actions. The paper presents popular positioning methods in spaces where GNSS navigation signal is not available. The potential of using such technologies as UWB, US, INS or SLAM algorithms based on readings from LiDARs or cameras is discussed in the context of small land platforms that can perform specific tasks in an automated manner. The paper also discusses the solutions described in detail in the cited literature related to the subject of data fusion from various types of sensors, which ensures greater accuracy and reliability of the readings obtained.
14
Content available remote Indoor positioning methods for small autonomous vehicles
EN
The estimation of their position by unmanned vehicles is crucial for successful reconnaissance, procurement and rescue missions in autonomous mode. Determining goals and mission checkpoints allows the platform operator, and also the decision-making algorithms, to take appropriate actions. The paper presents popular positioning methods in spaces where GNSS navigation signal is not available. The potential of using such technologies as UWB, US, INS or SLAM algorithms based on readings from LiDARs or cameras is discussed in the context of small land platforms that can perform specific tasks in an automated manner. The paper also discusses the solutions described in detail in the cited literature related to the subject of data fusion from various types of sensors, which ensures greater accuracy and reliability of the readings obtained.
PL
Efektywne współdziałanie operatora z bezzałogowymi platformami lądowymi wymaga uzyskania świadomości o ich wzajemnym położeniu. Autorzy proponują wykorzystanie w tym celu zestawu czujników, umieszczonych na robocie i operatorze, i komunikujących się pomiędzy sobą za pomocą radiowych sygnałów ultraszerokopasmowych UWB. Artykuł zawiera analizę i porównanie uzyskanych wyników symulacyjnych i eksperymentalnych, pozwalających na ocenę uzyskiwanych dokładności.
EN
Effective interaction of the operator with unmanned land platforms requires knowledge of their mutual location. The authors propose to use for this purpose a set of sensors, placed on the robot and operator, communicating with each other using ultra-wideband UWB radio signals. The article contains an analysis and comparison of the obtained simulation and experimental results, allowing the assessment of the location accuracy.
PL
W artykule przedstawiono wyniki analizy kluczowych dokumentów doktrynalnych pod względem możliwości wdrożenia i eksploatowania w Siłach Zbrojnych RP bezzałogowych pojazdów lądowych zabezpieczenia logistycznego kompanii i plutonu. Zaprezentowano ich miejsce i rolę w ogólnej systematyce klasyfikacyjnej odnoszącej się do bezzałogowych pojazdów lądowych. Scharakteryzowano przykłady dostępnych rozwiązań mogących skutecznie zabezpieczać potrzeby pododdziałów takich jak kompania czy pluton. Na podstawie przeprowadzonej analizy sformułowano wnioski, które mogą stanowić podstawę do rozważań szczegółowych i formułowania wstępnych warunków taktyczno-technicznych.
EN
This article presents the results of analysis main doctrinal documents in terms of deployment and use unmanned ground vehicles for company and platoon logistics support in the Polish Armed Forces. Shown their place and role in the overall scheme of the classification relating to unmanned ground vehicles. Afterwards describes examples of the available solutions that can effectively protect the needs of units such as company or platoon. On the basis of the carried out analysis was formulated conclusions, that may give rise to specific considerations and the formulation of the initial conditions of tactical parameters.
PL
W artykule omówione zostały wymagania dla hydrostatycznego układu skrętu bezzałogowych robotów mobilnych w kontekście zastosowania w systemie podążania za przewodnikiem. Przeanalizowano wymagania stawiane w tym zakresie przez wojsko. Omówiono stosowane systemy monitorujące otoczenie samochodów osobowych oraz koncepcję systemu wspomagania sterowania bezzałogową platformą lądową i wyniki badań intensywności skrętu platformy w porównaniu z typową maszyną budowlaną.
EN
The article discusses the requirements for the hydrostatic system of turning unmanned mobile robots in the context of using the system to follow the guide. The requirements set in this regard by the army were analyzed. Exchange car monitoring systems for cars. The control system of the unmanned ground platform and the results of tests on the intensity of the platform's turn compared to a typical construction machine are discussed.
PL
Artykuł przedstawia efekty pracy wykonywanej w projekcie pt. „Platforma bazowa ekstremalnej mobilności z napędem hydrostatycznym”, realizowanym w ramach IV edycji programu LIDER, prowadzonego przez Narodowe Centrum Badań i Rozwoju. Artykuł opisuje problemy, jakie należy rozwiązać, aby zapewnić Bezzałogowym Platformom Lądowym (BPL) wysoką zdolność pokonywania przeszkód terenowych. O zdolności tej decyduje efektywność i skuteczność działania układu zawieszenia oraz układu napędowego. Dotyczą one w głównej mierze tych terenów, na które człowiek nie może się dostać za pomocą klasycznych pojazdów terenowych. W artykule zaprezentowano główne założenia do projektu, sposób ich realizacji oraz wizualizację wraz z opisem oraz charakterystyką techniczną platformy.
EN
This paper focus on results of work performed in project “Extreme mobility base platform with hydrostatic drive system” which were done under patronage of National Research and Development Centrer in IVth edition of LIDER program. Paper describe problems to solve which are connected to Unmanned Ground Vehicles (UGV) high mobility and ability to obstacle overcoming. They concern this areas were people are active and can’t achieve them with classical terrain vehicles. The main factors which decides about highmobility are efficiency and effectiveness of suspension and drive systems working. Paper shows main project assumptions, way of their implementation and visualisation with short describe and technical parameters of the platform.
PL
W pracy zawarto analizę mobilności lekkiej bezzałogowej platformy lądowej. Oszacowano naciski jednostkowe metodą MMP, które określiły minimalna nośność gruntu po której platforma może się poruszać. W oparciu o stworzony model symulacyjny wykonany w środowisku do badań układów wieloczłonowych przeprowadzono badania symulacyjne pokonywania przeszkód terenowych przez model platformy. Wykonane badania pozwoliły określić minimalny współczynnik przyczepności przy którym dany typ przeszkody został pokonany przez platformę. Zbudowany model posłużył do wykonania analizy stateczności platformy. Uwzględniono model platformy bez ładunku jak i z ładunkiem. Wykonane analizy pozwoliły oszacować stateczność wzdłużną i poprzeczną modelu platformy.
EN
This paper shows analysis of the mobility of lightweight unmanned ground vehicle. Unit ground pressure was estimated by MMP method. It allows to determine type of ground the platform is able to negotiate. Moreover, a computer model of the platform was built and simulation concerning the ability to overcome obstacles by model of platform was carried out. Conducted research allowed to determine minimal value of coefficient of friction that enable platform to overcome obstacles. Computer model was used to analyse the platform’s stability as well. A model without and with load was examined. Conducted analysis allows to estimate lateral and longitudinal stability of the platform’s model.
PL
W artykule przedstawiono proces kształtowania systemu wizyjnego dla bezzałogowej platformy lądowej ekstremalnej mobilności w konfiguracji transportowej. Proces ten zakłada opracowanie wymagań, przeprowadzenie badań identyfikacyjnych liczbę i rozmieszczenie komponentów układu akwizycji obrazu, następnie opracowanie ideowej struktury systemu wizyjnego, prace modyfikacyjne na modelu wirtualnym a następnie wybór podzespołów wykonawczych. Kompleksowe podejście do zagadnienia kształtowania systemów wizyjnych gwarantuje opracowanie rozwiązania, które pozwoli zapewnić bezpieczeństwo platformie oraz obiektom znajdującym się w jej otoczeniu podczas wykonywania zadań roboczych.
EN
The following paper presents the process of developing a vision system for extremely mobility unmanned land platforms in a transport configuration. Presented process involves the development of requirements, identification tests for number and distribution of the image acquisition system components, then the development of the ideological structure of considered vision system, afterward modification work on a virtual model and selecting real world component. A comprehensive approach to shaping these types of vision systems ensures the development of solutions that will provide safety for the platform and the objects located in its surroundings while performing work tasks.
first rewind previous Strona / 2 next fast forward last
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.