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Dipartimento di Scienze e Metodi dell'Ingegneria

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2022 - Self-configuring BLE deep sleep network for fault tolerant WSN [Relazione in Atti di Convegno]
Rosati, C. A.; Cervo, A.; Bertoli, A.; Santacaterina, M.; Battilani, N.; Fantuzzi, C.

This paper is focused on Wireless Sensor Network (WSN) leveraging on Bluetooth Low Energy (BLE) connectivity for low energy applications which is fault tolerant versus communication path failures. The topic is important to create a robust sensorized environment to be applied in industrial context or smart infrastructure to enable scheduled monitoring with low power consumption applications. Currently BLE applications are mainly thought for smart home solutions, health care and positioning systems. In those applications the BLE nodes are continuously supplied by external power suppliers. Our goal is to design a self-configuring network with a synchronized deep sleep behavior, aimed to optimize the energy consumption, with an overall active time interval constraint optimized with a data-driven method. The aim is to find a tradeoff between the on time and the ability to collect all the nodes data, pursuing a low power consumption. Our research is based on BLE protocols, interaction between edge systems for data collection and cloud system for data analysis and software agent optimization system. The paper analyses different configurations and describes the possible optimization algorithm to be used for the software agent design, in order to reach a fine-tuned control to improve the fault tolerance and fault diagnosis of the system. Finally experimental results are compared with the estimates obtained via a software simulation tool implemented for this architectural pattern.

2021 - Hierarchical and Flexible Traffic Management of Multi-AGV Systems Applied to Industrial Environments [Relazione in Atti di Convegno]
Pratissoli, Federico; Battilani, Nicola; Fantuzzi, Cesare; Sabattini, Lorenzo

2019 - New trends in the design of human-machine interaction for CNC machines [Relazione in Atti di Convegno]
Lotti, Giulia; Villani, Valeria; Battilani, Nicola; Fantuzzi, Cesare

2019 - Survey on usability assessment for industrial user interfaces [Relazione in Atti di Convegno]
Villani, Valeria; Lotti, Giulia; Battilani, Nicola; Fantuzzi, Cesare

2018 - Towards an integrated approach for supporting the workers in Industry 4.0 [Relazione in Atti di Convegno]
Lotti, Giulia; Villani, Valeria; Battilani, Nicola; Fantuzzi, Cesare

Assisting and supporting human operators in modern industry is becoming crucial to increase the efficiency. Available tools, like use and maintenance manual, have a complex organization due to variety of information treated and purposes. Confusion and disorientation bring a series of disadvantages that increase the cognitive effort of the users. Tasks such as set-up, maintenance, and troubleshooting, strongly depend on the skills of human operators. To tackle this problem, in this paper we present an integrated approach with the aim of developing a thorough system that starts from a structured management of technical documen- tation and provides useful support to the users during their work. The approach is composed by three phases i) Data organization and management, obtaining with a standard that allows to edit and manage the information in a structured way; ii) Content extraction and filtering, for collecting the technical labelled information; iii) Support to the user during use and maintenance of the machine, consisting in a set of on-line tools. At the end of this paper, we present an application of the proposed approach to the specific case of troubleshooting support, by considering MyAID, a tool designed to assist operators to solve machine failures.

2017 - An assisted bilateral control strategy for 3D pose estimation of visual features [Relazione in Atti di Convegno]
Battilani, Nicola; Spica, Riccardo; Giordano, Paolo Robuffo; Secchi, Cristian

Teleoperating a quadrotor equipped with a monocular camera for exploring a wide area in search of something has become a common practice in many application scenarios (e.g. search and rescue). In order to efficiently plan operations, estimating the 3D pose of a point of interest is as important as detecting it. In this paper we propose a novel bilateral teleoperation architecture where an estimation scheme is exploited for recovering the position of a set of visual features while an operator steers the motion of the quadrotor UAV. The operator acts on a force-feedback master device that produces force cues meant to suggest where to drive the quadrotor for improving the convergence rate of the estimation process. The effectiveness of the proposed teleoperation strategy is validated by means of hardware in the loop simulations.

2016 - MyAID: a Troubleshooting Application for Supporting Human Operators in Industrial Environment [Relazione in Atti di Convegno]
Villani, Valeria; Battilani, Nicola; Lotti, Giulia; Lotti, Giulia; Fantuzzi, Cesare

Nowadays manufacturing systems are increasing in sophistication and complexity. In this scenario, human operators experience many diffculties to interact effciently with the machine. To tackle this problem, in this paper we present a novel interactive troubleshooting tool to be used in industrial environment. The application, called MyAID, relies on a hypermedia information system and aims at assisting shopoor workers in a factory to perform preventive and corrective machine maintenance. The main advantages of MyAID are the following. First, it overcomes limitations of conventional printed documentation. Second, it can be easily updated and adapted to other machines or uses, other than troubleshooting, since it enjoys a modular structure. Third, it can be connected directly to the control unit of the machine to read active alarms or verify whether the user is following correctly the troubleshooting procedure. Finally, the plan for usability assessment of the proposed application, which is organized in a preliminary heuristic evaluation according to Nielsen's heuristics and field tests with users, is introduced.

2016 - Smartwatch-Enhanced Interaction with an Advanced Troubleshooting System for Industrial Machines [Relazione in Atti di Convegno]
Villani, Valeria; Sabattini, Lorenzo; Battilani, Nicola; Fantuzzi, Cesare

Smartwatches are unobtrusive everyday devices which can be also exploited for effective gesture-based human-machine interaction. In this paper, we propose the use of a smartwatch to interact with an advanced troubleshooting application to be used in industrial environment. The application is a hypermedia information system aiming at assisting workers in performing preventive and corrective machine maintenance. The smartwatch allows a handsfree interaction, thus facilitating the use of the whole system when wearing personal protective equipment such as gloves or having fingers greased with oil or dust, which prevent operating touch screens. The algorithm for gesture recognition we have devised, which is based on template matching, is described in the paper, together with its experimental validation. Finally, we present a preliminary usability assessment of the overall system, meant as integration of the smartwatch with the hypermedia system.

2015 - A PackML-based design pattern for modular PLC code [Relazione in Atti di Convegno]
Barbieri, G.; Battilani, N.; Fantuzzi, C.

Software is exponentially growing in modern automatic machines. Consequently, the operations of writing, debug and maintenance are increasing the time necessary to be accomplished. In order to shorten this time, there is the need to define methodologies for software which enhance modularity, along with re-usability and standardization. This work collects the needs of several industries working in packaging domain for PLC code writing, proposing a solution which overcomes the limits of other well known approaches defined in literature: Object-Orientation and Model Driven Engineering. The proposed solution is a design pattern based on the PackML. This can be considered as an introductory work about this topic. We hope that the scientific community will increase the researches, in order to standardize and facilitate the software writing which dimensions are becoming an issue above all for Small and Medium Enterprises (SMEs).