I want to create an android application with background scanning of BLE beacon (like Eddystone or ibeacon). All I need is the detection of a beacon with a specific ID on my phone. I do not need distance between devices.
Is there any beacon with the ability to send signals through cca 3 walls in a building (or 1 flood up/down) in an area with a radius around 30m?
Can my app scan in the background every few seconds all day? (or just when Bluetooth is on, obviously...)
I tried some solutions, but android changed some politics about background running apps, or bluetooth receiver (to detect, when bluetooth is on). My solution sometimes works even 7 hours, but when I restart phone, the app is not restarted. I want a full background run, not foreground service with notification.
Thank you!
Two points:
All bluetooth beacon formats use the same radio transport mechanism. Radio power is limited by international regulatory bodies making transmitters weak.
The laws of physics decide how well they will travel between floors of a building, which will vary based on construction materials, but results will generally be poor. Again, this will be the same for all beacon formats.
Android 8+ limits detections of BLE in the background without a foreground service. You can do at most one scan every 10-25 minutes (this is randomized) when the phone is not in deep sleep mode. the only alternative is a foreground service with an ever present notification.
I realize these are not the answers you want to hear, but it is important to recognize and accept real-world limitations that exist and come up with creative solutions that work within these limitations.