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.
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由于 API 收入本质是 “模型即收入” 的变现模式，收入增长提升也说明企业正在用真金白银认可模型作为产品服务的本身 “质价比”。
"Protecting our country is a badge of honour which the Rwanda Defence Force carries very proudly," it added.