（二）货物的自然损耗、本身的缺陷和自然特性；
18:35, 4 марта 2026Силовые структуры
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功能特性：支持多源异构与复杂网络环境
It's a simple rather heuristic approach. Because BLE uses randomised MAC and the OSSID are not stable, nor the UUID of the service announcements, you can't just scan for the bluetooth beacons. And, to make thinks even more dire, some like Meta, for instance, use proprietary Bluetooth services and UUIDs are not persistent, we can only rely on the communicated device names for now.