Technologies of Virtual Reality (VR), Augmented Reality (AR) and Mixed Reality (MR) are increasin... more Technologies of Virtual Reality (VR), Augmented Reality (AR) and Mixed Reality (MR) are increasingly applied in urban construction and smart cities. As one of the high fidelity revivification methods, the purpose of these applications is to provide a better immerse experience over the combination of realistic and virtual interactions. Numerous methods and models are adopted to simulate real life scenarios. Regularly, first-person perspective (1PP) is a spontaneous way to revive reality virtually, and this is also what most manufacturers do. In a different way, we tend to verify the feasibility of a new perspective for VR, AR or MR: a third-person perspective (3PP) with multiple Point of View (PoV) from different fixed cameras. We implemented an immersive AR environment for users to control or view themselves in a third person perspective. They are able to switch among different perspectives in different angles, including a first-person view. We developed a simple game based on this ...
Internet of Things (IoT) devices frequently utilize wireless networks operating in the Industrial... more Internet of Things (IoT) devices frequently utilize wireless networks operating in the Industrial, Scientific, and Medical (ISM) Sub-1 GHz spectrum bands. Compared with higher frequency bands, the Sub-1 GHz band provides broader coverage and lower power consumption, which are desirable properties for low-cost IoT applications. However, low-power and low-cost IoT modules cause high variability in network performance. The varying influence from real-world environments additionally undermines wireless propagation and aggravates this variability. We explore these influences and provide a checklist of potential factors affecting wireless network performance in real-world environments. Using multiple low-cost IoT modules, we conduct multiple experiments in five real-world scenarios: indoor, street, open field, ground-to-drone (G2D), and drone-to-drone (D2D). Specifically, the tests are conducted inside a building, on a straight street with wooded sidewalks and aligned houses, on an open f...
Technologies of Virtual Reality (VR), Augmented Reality (AR) and Mixed Reality (MR) are increasin... more Technologies of Virtual Reality (VR), Augmented Reality (AR) and Mixed Reality (MR) are increasingly applied in urban construction and smart cities. As one of the high fidelity revivification methods, the purpose of these applications is to provide a better immerse experience over the combination of realistic and virtual interactions. Numerous methods and models are adopted to simulate real life scenarios. Regularly, first-person perspective (1PP) is a spontaneous way to revive reality virtually, and this is also what most manufacturers do. In a different way, we tend to verify the feasibility of a new perspective for VR, AR or MR: a third-person perspective (3PP) with multiple Point of View (PoV) from different fixed cameras. We implemented an immersive AR environment for users to control or view themselves in a third person perspective. They are able to switch among different perspectives in different angles, including a first-person view. We developed a simple game based on this ...
Internet of Things (IoT) devices frequently utilize wireless networks operating in the Industrial... more Internet of Things (IoT) devices frequently utilize wireless networks operating in the Industrial, Scientific, and Medical (ISM) Sub-1 GHz spectrum bands. Compared with higher frequency bands, the Sub-1 GHz band provides broader coverage and lower power consumption, which are desirable properties for low-cost IoT applications. However, low-power and low-cost IoT modules cause high variability in network performance. The varying influence from real-world environments additionally undermines wireless propagation and aggravates this variability. We explore these influences and provide a checklist of potential factors affecting wireless network performance in real-world environments. Using multiple low-cost IoT modules, we conduct multiple experiments in five real-world scenarios: indoor, street, open field, ground-to-drone (G2D), and drone-to-drone (D2D). Specifically, the tests are conducted inside a building, on a straight street with wooded sidewalks and aligned houses, on an open f...
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