This paper presented an equivalent circuit simulation model of the cantilevered piezoelectric bimorph energy harvester for predicting the electrical power output of the energy harvester. The alternating voltage in the...
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The impedance matching and the optimization of power from a circular piezoelectric energy harvester with a central-attached mass are studied. A finite element model is constructed to analyze the electrical equivalent ...
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To solve the conflict between OS's real time property and NC system's open and universal property [1], a compiled-typed NC system is advanced based on analysis and research of the structure of modern NC system...
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ISBN:
(纸本)9783037853993
To solve the conflict between OS's real time property and NC system's open and universal property [1], a compiled-typed NC system is advanced based on analysis and research of the structure of modern NC systems. This kind of system can diminish the affection of the real-time OS's respond precision to machining with high speed and high precision and improve the frequency of interpolation sampling and respond precision. Motion control experiment and parametric curve direct interpolation experiment are finished by bonnet polishing machine tool with compiled-typed NC prototype system, proving that working principle of compiled-typed NC system is correct and validity.
Aiming at the problems in hydraulic rotary self-servo, a easy control hydraulic rotary self-servo technology was proposed. The problems in hydraulic rotary self-servo were just as follows: the hydraulic servo valve ra...
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This paper presents a self-localization system for mobile robot in large-scale indoor environments. For a structured corridor environment, the vision information is adopted to track the robot pose with a predefined hy...
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作者:
Chen, ChaoDuan, Xing-GuangWang, Xing-TaoZhu, Xiang-YuLi, MengIntelligent Robotics Institute
Key Laboratory of Biomimetic Robots and Systems Ministry of Education State Key Laboratory of Intelligent Control and Decision of Complex System School of Mechatronical Engineering Beijing Institute of Technology #5Zhongguancun South Street Haidian Beijing China China
As the complex anatomical structure of the maxillofacial region, the surgery in this area is high risk and difficult to implement. Then, a multi-arm medical robot assisted maxillofacial surgery using optical navigatio...
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The four-rotor unmanned aerial vehicle (UAV), known as quadrotor UAV, has been a hot area for the research of unmanned aerial vehicles. Ground control Station (GCS), as an essential part of quadrotor UAV system, plays...
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A novel approach to estimate localizability for mobile robots is presented based on probabilistic grid map (PGM). Firstly, a static localizability matrix is proposed for off-line estimation over the priori PGM. Then a...
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A novel approach to estimate localizability for mobile robots is presented based on probabilistic grid map (PGM). Firstly, a static localizability matrix is proposed for off-line estimation over the priori PGM. Then a dynamic localizability matrix is proposed to deal with unexpected dynamic changes. These matrices describe both localizability index and localizability direction quantitatively. The validity of the proposed method is demonstrated by experiments in different typical environments. Furthermore, two typical localization-related applications, including active global localization and pose tracking, are presented for illustrating the effectiveness of the proposed localizability estimation method.
The quadrotor unmanned aerial vehicle (UAV) has been a focus for unmanned aerial vehicles. Ground controlsystem (GCS) is an important part of the quadrotor UAV flight controlsystem, and it can promote the flight per...
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The quadrotor unmanned aerial vehicle (UAV) has been a focus for unmanned aerial vehicles. Ground controlsystem (GCS) is an important part of the quadrotor UAV flight controlsystem, and it can promote the flight performance and safety of quadrotor UAVs. In this paper, a quadrotor UAV GCS is designed and implemented, and the GCS realizes the following functions, including receiving and storing of the flight data, the real-time localization utilizing the customization of electronic maps like MapX and Google Earth, the visual display of flight states via virtual instruments and the waypoint planning. Outdoor experiments have been done to verify the GCS's performance. It can be concluded that the proposed GCS in this paper can work stably, and it can guarantee the integrity of the flight data, the accuracy of the instruments display and map localization.
The purpose of this research is to build a real-time flight simulator for quadrotor systems and verify if the simulator runs in real time. The simulator was constructed by writing the mathematical models of quadrotor ...
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The purpose of this research is to build a real-time flight simulator for quadrotor systems and verify if the simulator runs in real time. The simulator was constructed by writing the mathematical models of quadrotor dynamic in MATLAB/Simulink. Using xPC Target software environment, three PCs were set up to work in sync to make the simulation run in real time. This paper shows several simulation results of the quadrotor dynamic in three flight directions. These results validate the stable performance of PD controller being used. At the same time it can be revealed that the simulation runs in real time by observing the percentage processing usage of the computer as function of simulation time. The simulator can be very useful for researchers to understand the character of the quadrotor system being developed and for pilots to complete a mission using the quadrotor system.
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