Evaluation and Comparison of Ultrasonic and UWB Technology for Indoor Localization in an Industrial Environment

Evaluations of different technologies and solutions for indoor localization exist but only a few are aimed at the industrial context. In this paper, we compare and analyze two prominent solutions based on Ultra Wide Band Radio (Pozyx) and Ultrasound (GoT), both installed in an industrial manufacturing laboratory. The comparison comprises a static and a dynamic case. The static case evaluates average localization errors over 90 s intervals for 100 ground-truth points at three different heights, corresponding to different relevant objects in an industrial environment: mobile robots, pallets, forklifts and worker helmets. The average error obtained across the laboratory is similar for both systems and is between 0.3 m and 0.6 m, with higher errors for low altitudes. The dynamic case is performed with a mobile robot travelling with an average speed of 0.5 m/s at a height of 0.3 m. In this case, low frequency error components are filtered out to focus the comparison on dynamic errors. Average dynamic errors are within 0.3–0.4 m for Pozyx and within 0.1–0.2 m for GoT. Results show an acceptable accuracy required for tracking people or objects and could serve as a guideline for the least achievable accuracy when applied for mobile robotics in conjunction with other elements of a robotic navigation stack

Sindromul de apnee obstructivă în somn: protocol clinic naţional PCN-276

USMF „Nicolae Testemiţanu”, IMSP Institutul de Cardiologie, IMSP Institutul Neurologie și neurochirurgieAcest protocol a fost elaborat de grupul de lucru al Ministerului Sănătăţii al Republicii Moldova (MS RM), constituit din specialiştii Clinicii Pneumologie/Alergologie din cadrul Departamentului Medicină Internă și caterdrei ORL al Universităţii de Stat de Medicină şi Farmacie „Nicolae Testemiţanu”, Departamentului Cardiologie de urgență și Laboratorului de somnologie Institutul neurologie si neurochirurgie. Protocolul naţional este elaborat în conformitate cu ghidurile internaţionale actuale privind sindromul de apnee obstructivă în somn (SAOS) la persoanele adulte şi va servi drept bază pentru elaborarea protocoalelor instituţionale. La recomandarea MS pentru monitorizarea protocoalelor instituţionale, pot fi folosite formulare suplimentare, care nu sînt incluse în protocolul clinic naţional