“…In recent decades, virtual reality (VR) related techniques [ 3 , 4 ] have been extensively exploited in a plethora of applications [ 5 ] ranging from industrial manufacturing [ 6 ], healthcare [ 7 ], entertainment [ 8 , 9 ], and education [ 10 , 11 ]. Meanwhile, different types of Internet of things (IoT) have also been deployed in practice [ 12 ], e.g., commercial and industrial scenarios [ 13 , 14 ], medical assistance [ 15 ], and smart cities [ 16 ]. Both of them have shown their capacity and potential value in multidisciplinary tasks.…”