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Keywords = remote control for wall painting

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18 pages, 4380 KiB  
Article
Low-Cost UVBot Using SLAM to Mitigate the Spread of Noroviruses in Occupational Spaces
by Fanxin Wang, Harris Junaid Nisar, Yao Li, Elbashir Araud, Thanh H. Nguyen and Thenkurussi Kesavadas
Sensors 2022, 22(22), 8926; https://doi.org/10.3390/s22228926 - 18 Nov 2022
Cited by 4 | Viewed by 2632
Abstract
Noroviruses (NoVs) cause over 90% of non-bacterial gastroenteritis outbreaks in adults and children in developed countries. Therefore, there is a need for approaches to mitigate the transmission of noroviruses in workplaces to reduce their substantial health burden. We developed and validated a low-cost, [...] Read more.
Noroviruses (NoVs) cause over 90% of non-bacterial gastroenteritis outbreaks in adults and children in developed countries. Therefore, there is a need for approaches to mitigate the transmission of noroviruses in workplaces to reduce their substantial health burden. We developed and validated a low-cost, autonomous robot called the UVBot to disinfect occupational spaces using ultraviolet (UV) lamps. The total cost of the UVBOT is less than USD 1000, which is much lower than existing commercial robots that cost as much as USD 35,000. The user-friendly desktop application allows users to control the robot remotely, check the disinfection map, and add virtual walls to the map. A 2D LiDAR and a simultaneous localization and mapping (SLAM) algorithm was used to generate a map of the space being disinfected. Tulane virus (TV), a human norovirus surrogate, was used to validate the UVBot’s effectiveness. TV was deposited on a painted drywall and exposed to UV radiation at different doses. A 3-log (99.9%) reduction of TV infectivity was achieved at a UV dose of 45 mJ/cm2. We further calculated the sanitizing speed as 3.5 cm/s and the efficient sanitizing distance reached up to 40 cm from the UV bulb. The design, software, and environment test data are available to the public so that any organization with minimal engineering capabilities can reproduce the UVBot system. Full article
(This article belongs to the Section Sensors and Robotics)
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23 pages, 772 KiB  
Article
A New Acquisition and Imaging System for Environmental Measurements: An Experience on the Italian Cultural Heritage
by Fabio Leccese, Marco Cagnetti, Andrea Calogero, Daniele Trinca, Stefano Di Pasquale, Sabino Giarnetti and Lorenzo Cozzella
Sensors 2014, 14(5), 9290-9312; https://doi.org/10.3390/s140509290 - 23 May 2014
Cited by 62 | Viewed by 9822
Abstract
A new acquisition system for remote control of wall paintings has been realized and tested in the field. The system measures temperature and atmospheric pressure in an archeological site where a fresco has been put under control. The measuring chain has been designed [...] Read more.
A new acquisition system for remote control of wall paintings has been realized and tested in the field. The system measures temperature and atmospheric pressure in an archeological site where a fresco has been put under control. The measuring chain has been designed to be used in unfavorable environments where neither electric power nor telecommunication infrastructures are available. The environmental parameters obtained from the local monitoring are then transferred remotely allowing an easier management by experts in the field of conservation of cultural heritage. The local acquisition system uses an electronic card based on microcontrollers and sends the data to a central unit realized with a Raspberry-Pi. The latter manages a high quality camera to pick up pictures of the fresco. Finally, to realize the remote control at a site not reached by internet signals, a WiMAX connection based on different communication technologies such as WiMAX, Ethernet, GPRS and Satellite, has been set up. Full article
(This article belongs to the Special Issue Sensors for Cultural Heritage Diagnostics)
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