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AltBeacon / android-beacon-library

Allows Android apps to interact with BLE beacons
Apache License 2.0
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Why use iPhone 1m rssi #1080

Closed huzhongyin closed 2 years ago

huzhongyin commented 2 years ago

Hello,I can't understand why the rssi at 1m of the iphone is used as the base value instead of the base value of the current phone at 1m for fitting

davidgyoung commented 2 years ago

The expected RSSI at 1 meter is programmed into the hardware beacon and included in the beacon Bluetooth LE Advertisement. There is no way the beacon can know what phone(s) might be listening (a beacon is a one way transmission), so it cannot be specific to the phone model that receives it. As a result, a "standard" phone model is used. In reality there is no real "standard" phone model, but the iPhone 4S is the historical reference because that was the only phone in existence that supported detecting iBeacon at the time that iBeacon was released.

huzhongyin commented 2 years ago

OK，I get it ,Thank you