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.
Виктория Кондратьева (Редактор отдела «Мир»)
，这一点在体育直播中也有详细论述
网络零售引领消费升级，厚植民生幸福底色。
US military says first 24 hours of war was nearly double the scale of 2003 ‘shock-and-awe’ operation in Iraq; Revolutionary Guards again claim control of crucial of strait after Trump offers navy escort for tankers