向外供接触
发表于 2025-4-1 04:36:34
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Apraxia
发表于 2025-4-1 09:08:48
Hartmut Buerkle,Stuart A. Dunbarprevalence of smartphones offers an opportunity to connect the physical and digital world. Bluetooth Low Energy beacons are small devices, which send out a signal that can be detected by consumer’s smartphones to enable location-based services. However, there are very few documented cases of beacon