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.
Semi-active damping control of oscillating devices and structures is a challenging field that conjugates a relative actuators simplicity together with the chance of studying new algorithms and system architectures. This paper proposes an overview of the investigation recently developed by the authors in the field of semi-active damping using the variational optimal control. The method produces a general...
Out-of-shelf problem is important to solve for retail store since the absence of products on the shelf can lead to a significant reduction of shoppers and a consequent drop on sales. For this purpose, it is necessary to study and to introduce approaches able to establish the lack of products on the shelves and thereby promptly ensuring their repositioning.
The aim of this work is to propose an integrated system consisted of an RGB-D camera and software able to monitor shoppers in intelligent retail environments. We want to propose an innovative low cost intelligent system that can evaluate not only the shopper behaviour, but also detect their interactions with the products in the shelves, by developing automatic RGB-D techniques for video analysis....
This paper describes an abstract framework for autonomous robot programming called GOLEM. The aim is to let a developer design the behaviour of a robot in accordance with a rational model, with the objective of mimicking human behaviour. GOLEM organises a robot's activities into goals and sub-goals, linked to one another through specific relationships. Execution of goals does not obey a pre-fixed...
The freezing of gait (FOG) is a common and highly distressing motor symptom of patients with Parkinson's Disease (PD). Effective management of FOG is difficult given its episodic nature, heterogeneous manifestation and limited responsiveness to drug treatment. Clinicians found alternative approaches, such as rhythmic cueing. We built a smartphone-based architecture in agreement with acceptability...
In the framework of Ambient Assisted Living solutions, it is very important to monitor the degree of vitality of elderly users in their daily activities, for example to evaluate if the user is spending too much time in a static condition, or not. In fact this could denote an anomalous trend, possibly related to cognitive or physical conditions worsening. For such a kind of monitoring to be effective,...
The design of an Ambient Assisted Living (AAL) aims to create better living conditions for the elderly, especially those who choose to live in their own houses, as long as possible. To this objective, AAL systems must mainly monitor the health status of the elderly through the analysis of data gathered via technologies based on sensor devices. Sensors networks produce collections of data of fine-grained...
In this paper authors present an open source low-cost basic robotic end effector platform for facilitating research on robotic grasping. The 3D design model of a three fingered underactuated robotic gripper is presented and manufactured with minimal number of 3D printed components and an off-the-shelf servomotor actuator. An underactuated finger, gear train mechanisms and an overall gripper assembly...
RoboSim, a simulation environment designed to control modular robots with C code which can be used without modification for hardware robot control, is presented within this paper. The increasing presence of computer simulations to initially validate code designed for hardware robots is confirming their benefits as a method to quickly and easily prototype software design. RoboSim is integrated within...
Nowadays Virtual Prototyping (VP) of robots dynamics is an effective tool to simulate the system behavior and improve the quality of rehabilitation activities. Using a VP software environment, the patients can be visually guided in their actions and the physiotherapist can control the system parameters easily to investigate the patients' performances in real time. In this paper VP concept is introducted...
We present calibration procedures for localization sensor systems for flexible robotic machining. For the needs of flexible production with varying parts and locations, object detection and localizing sensor systems carry out rough global localisation with a laser profiler or a multi-camera system. For needs of machining, more accurate and local object and surface localisation is carried out with...
Omnidirectional mobile robots offer interesting features for industrial and service applications, in particular, when operating in tight spaces. Compared to car-like nonholonomic vehicles, they provide a higher degree of maneuverability, and often require less complex path planning and control schemes. Three different types of holonomic wheels that enable omnidirectional motion have been proposed...
The problem of detection and isolation of actuator faults in hexacopter vehicles is address in this article. The aim is to detect and isolate possible faults which can occur on the vehicle actuation system (i.e. rotors and propellers). The dynamic nonlinear model of an hexarotor vehicle is first derived to build a model-based diagnosis system. Then a Thau observer is developed to estimate the states...
Designing and selecting hardware for a multirotor can be challenging in order to get the best flight performance out of the system. In addition to selecting the hardware, the number of actuators can also be altered. For a 4 actuator (quadrotor) setup, one set of hardware can give the optimal design, while for a 6 actuator setup (hexarotor) the same hardware may not necessarily give the same response...
In this paper two different process models which can predict the mean value components of the tool forces when milling aluminium, bronze and steel with an industrial robot have been estimated. The parameters in the process models were depth and width of cut, while feedrate and cutting speed were found from the tool manufacturer's datasheets. The models were estimated from a large set of machining...
This paper proposes a compact and lightweight system for 3D vision based autonomous navigation. Our navigation system consists of two main components: a stereo vision camera with FPGA processing developed by our research group and an embedded quad core ARM board. These two components allow us to implement a robust obstacle detection algorithm that enables control of a moving vehicle in an unknown...
This paper presents a novel tablet based end-user interface for industrial robot programming (called Hammer). This application makes easier to program tasks for industrial robots like polishing, milling or grinding. It is based on the Scratch programming language, but specifically design and created for Android OS. It is a visual programming concept that allows non-skilled programmer operators to...
Quality of life of various types of people can strongly benefit of a design process developed to take into account needs and requirements of end users. In this context the paper present a study on the cognitive and physical abilities of elderly persons, to design a friendly kitchen, that is considered one of the most complex home environment for the provided functionalities and involved human capabilities...
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.