The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The importance of mobile robots for the nuclear disaster response has been realized after Fukushima Dai-ichi nuclear power plant accident. In this paper, we propose a tracked robot for rescue and search in nuclear environment. A gamma-ray irradiation test of the robot's control system is conducted, in order to evaluate the performance of the robot in nuclear environment. The parallel test method is...
With the development of worldwide large experimental facilities, like particle accelerators, confinement fusion equipments, and astronomical telescopes, both the type and the amount of devices or instruments have increased significantly, which contributes to a large-scale heterogeneous system. It is challenging our current control system, and requiring a more efficient pattern, in terms of both control...
A wind-propelled tumbleweed rover with a novel structure that is used to explore Antarctica is presented in this paper. Different from other tumbleweed rovers, this one has a double-deck spherical shell and is powered by solar energy. Also, the influence of the tumbleweed's mass and size to the motion performance of the tumbleweed is worked out by feasibility analysis. After that, the structure and...
To figure out the limitation of enough power resource or energy supplied in Antarctic expedition, this paper presented a large-size spherical robot which can drive by internal power and wind. It consists of a 2-DOF pendulum inside the shell, rotating with transverse and longitudinal axis. Due to the non-holonomic restraint of motion, for smooth and steady control, the spherical robot is designed to...
In view of problem for miniaturizing Micro Air Vehicles (MAV), a novel asymmetrical pitch system faced to rotary wing MAV is introduced. The pitch mechanism and control characteristics are studied and analyzed. Because the deformation of elasticity link is key to generate the blade pitch, it is analyzed and calculated by elasticity finite element method. And the results illustrate the linear relationship...
The extended nonholonomic double intergrator (ENDI) cannot be asymptotically stabilized by a continuous and time-invariant feedback controller since it violates the Brockett's condition. In this paper, a new continuous control scheme is proposed to stabilize the ENDI system with the drift. The dynamics of an ENDI system is enlarged to a higher dimensional space where a continuous but time-varying...
Firstly, based on the principle of binocular vergence eye movements ,a new type of method about field fixed point landing of the Subminiature robot helicopter is put forward. Secondly, according to oculomotor neural pathways, the oculomotor control system model is established. Then the control model of SHR landing system is discussed in detail. Some key problems about the control system are stressed...
Adaptive robust dynamic balance and motion control are considered for mobile wheeled inverted pendulums, in the presence of parametric and functional uncertainties. Based on Lyapunov synthesis, the proposed control mechanisms using physical properties of wheeled inverted pendulums ensure that the outputs of the system track the given bounded reference signals within a small neighborhood of zero and...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.