This paper presents an application of the multiagent reinforcement learning approach for the efficient control of a mobile robot. This approach is based on a multi-agent system applied to multi-wheel control. The robot’s platform is decomposed into driving modules agents that are trained independently. The proposed approach incorporates multiple Q-learning agents, which permits them to effectiv...

About 1 in 5 Americans have some kind of disability, and 1 in 10 have a severe disability [16]. Instrumented environments can be used for automatic monitoring for people with physical and cognitive disabilities. We describe a system that uses a handful of motion detectors to predict light switch usage in an instrumented home. We use a naive Bayes learner with an automatically extracted feature ...

The main objective was to quantify the effects of five different slopes on trunk and shoulder kinematics as well as shoulder kinetic and muscular demands during manual wheelchair (MWC) propulsion on a motorized treadmill. Eighteen participants with spinal cord injury propelled their MWC at a self-selected constant speed on a motorized treadmill set at different slopes (0°, 2.7°, 3.6°, 4.8°, and...

Obesity increases the risks to motor vehicle occupants of some types of injury in crashes. The effects of obesity on injury causation are not well understood and current prevention efforts do not effectively address the increased vulnerability of individuals with high body mass index (BMI). Proximity to the steering wheel has been associated with increased risk due to airbag deployment, and the...

Nowadays, the every vehicle existed mostly still using the two wheel steering system to control the movement of the vehicle whether it is front wheel drive, rear wheel drive or all wheel drive. But due to the awareness of safety, four wheel steering vehicles are being used increasingly due to high performance and stability that they bring to the vehicles. In this report, the performance of four...

In object-oriented systems, it is often the case that an object will have an attribute whose value identiies (points or refers to) some other object in the system so that the identiied object can be sent messages. The association between objects determined by the object references in a system will generally result in a complex structure whose design and speciication is a crucial part of the dev...

By means of ab initio quantum chemical methods we have determined the energies and electronic structures of molecular wheels TiBn, TiBnN10 n, TiCnN10 n and TiCnB10 n (for n 1⁄4 0e10). The ground state energies and the corresponding spin states of each atom, cluster and molecular wheel were calculated first in the framework of Hartree-Fock self-consistent-field (HF-SCF) using minimal and more ac...

We describe in detail a novel kinematic simulation of a three-wheeled mobile robot moving on extremely uneven terrain. The purpose of this simulation is to test a new concept, called Passive Variable Camber (PVC), for reducing undesirable wheel slip. PVC adds an extra degree of freedom at each wheel/platform joint, thereby allowing the wheel to tilt laterally. This extra motion allows the vehic...

Control laws for an integrated power/attitude control system (IPACS) for a satellite using variable-speed singlegimbal control moment gyroscopes (VSCMGs) are introduced. Whereas the wheel spin rates of the conventional CMGs are constant, the VSCMGs are allowed to have variable speeds. Therefore, VSCMGs have extra degrees of freedom and can be used to achieve additional objectives, such as energ...