Video Experimental Relacionado
Updated: Apr 28, 2026

06:58
A Structured Rehabilitation Protocol for Improved Multifunctional Prosthetic Control: A Case Study
Published on: November 6, 2015
9.0K
Seguimiento cooperativo de trayectorias en tiempo prescrito para MAV subactuados sin mediciones de velocidad mediante
IEEE transactions on cybernetics
|February 19, 2026
Resumen
Este estudio presenta un nuevo método para que los vehículos de superficie autónomos (ASV) sigan trayectorias en un tiempo determinado. Los algoritmos garantizan el seguimiento cooperativo de trayectorias a pesar de las limitaciones de los sensores y las incertidumbres del sistema.
Área de la Ciencia:
- Robótica
- Ingeniería de Sistemas de Control
- Ingeniería Marina
Sus antecedentes:
- Los vehículos de superficie autónomos (ASV) subactuados enfrentan desafíos que incluyen la falta de sensores de velocidad, dinámica no modelada y saturación del actuador.
- El seguimiento cooperativo de trayectorias (CPF) es crucial para las operaciones coordinadas de múltiples vehículos, pero se ve complicado por estas limitaciones.
Objetivo del estudio:
- Investigar el seguimiento cooperativo de trayectorias (CPF) en tiempo prescrito (PT) para ASV subactuados.
- Desarrollar algoritmos que superen las limitaciones de los sensores y las incertidumbres del sistema para el seguimiento sincronizado de trayectorias dentro de un tiempo especificado.
Principales métodos:
- Diseñó un observador de velocidad en tiempo prescrito (PTVO) práctico para estimar velocidades no medibles.
- Desarrolló una ley de guía cooperativa con comunicación intermitente aperiódica para el control cinemático.
- Diseñó un controlador de red neuronal (NN) intermitente aperiódico para el control dinámico, abordando la dinámica no modelada y la saturación del actuador.
- Construyó una ley adaptativa intermitente para estimar los pesos de la NN, reduciendo la complejidad.
Principales resultados:
- El PTVO estimó con éxito información de velocidad no medible.
- La ley de guía cooperativa permitió el seguimiento sincronizado de trayectorias con una carga de comunicación reducida.
- El controlador NN manejó eficazmente la dinámica no modelada y la saturación del actuador.
- El sistema de bucle cerrado demostró la convergencia a un conjunto residual dentro del intervalo de tiempo prescrito.
Conclusiones:
- Los algoritmos propuestos logran efectivamente el seguimiento cooperativo de trayectorias en tiempo prescrito para ASV subactuados.
- Los métodos abordan desafíos prácticos como las limitaciones de los sensores y la saturación del actuador.
- Las simulaciones numéricas validaron la efectividad y robustez de los algoritmos desarrollados.
Videos de Conceptos Relacionados
Kinematic Equations - II
12.0K
The second kinematic equation expresses the final position of an object in terms of its initial position, the distance traveled with the initial constant velocity, and the distance traveled due to a change in velocity. Similar to the first kinematic equation, this equation is also only valid when the acceleration is constant throughout the motion of an object.
Suppose a car merges into freeway traffic on a 200 m long ramp. If its initial velocity is 10 m/s and it accelerates at 2 m/s2, then the...
Suppose a car merges into freeway traffic on a 200 m long ramp. If its initial velocity is 10 m/s and it accelerates at 2 m/s2, then the...
12.0K
Kinematic Equations - III
9.9K
The first two kinematic equations have time as a variable, but the third kinematic equation is independent of time. This equation expresses final velocity as a function of the acceleration and distance over which it acts. The fourth kinematic equation does not have an acceleration term and provides the final position of the object at time t in terms of the initial and final velocities. This equation is useful when the value of the constant acceleration is unknown.
Using the kinematic equations,...
Using the kinematic equations,...
9.9K
Kinematic Equations: Problem Solving
24.2K
When analyzing one-dimensional motion with constant acceleration, the problem-solving strategy involves identifying the known quantities and choosing the appropriate kinematic equations to solve for the unknowns. Either one or two kinematic equations are needed to solve for the unknowns, depending on the known and unknown quantities. Generally, the number of equations required is the same as the number of unknown quantities in the given example. Two-body pursuit problems always require two...
24.2K
Relative Motion Analysis - Velocity
973
A stroke engine has a slider-crank mechanism that converts rotational motion from the crank into linear motion of the slider or vice versa. This mechanism consists of three main parts: the crank, the connecting rod, and the slider.
When an external force is exerted, it sets the crank into a rotational movement. This, in turn, instigates the motion of the connecting rod, leading to what is referred to as a general plane motion. This process involves two key points - point A on the connecting rod...
When an external force is exerted, it sets the crank into a rotational movement. This, in turn, instigates the motion of the connecting rod, leading to what is referred to as a general plane motion. This process involves two key points - point A on the connecting rod...
973
Relative Motion Analysis using Rotating Axes-Problem Solving
837
Consider a crane whose telescopic boom rotates with an angular velocity of 0.04 rad/s and angular acceleration of 0.02 rad/s2. Along with the rotation, the boom also extends linearly with a uniform speed of 5 m/s. The extension of the boom is measured at point D, which is measured with respect to the fixed point C on the other end of the boom. For the given instant, the distance between points C and D is 60 meters.
Here, in order to determine the magnitude of velocity and acceleration for point...
Here, in order to determine the magnitude of velocity and acceleration for point...
837
PID Controller
1.0K
Proportional-Integral-Derivative (PID) controllers are widely used in various control systems to enhance stability and performance. In a thermostat, it adjusts heating or cooling based on the temperature difference between the actual and desired levels. They are often used in automotive speed systems, effectively managing sudden speed changes while maintaining a constant speed under varying conditions. On the other hand, PI controllers, commonly employed in voltage regulation, enhance stability...
1.0K

