Ways to solve the problem of indoor navigation in iOS?

Question

satellite navigation

Statement of the problem: when passing by some object in the building, a person with an iOS device should receive a signal about it. The program that monitors this region can be turned off.
The problem is that GPS is not accurate enough to track the movement of a device in a building. This is facilitated by both the error in determining the coordinates of the built-in gps receiver, and interference inside the building (radio signal from other devices, metal structures). It is possible to solve the problem using iBeacon, but bluetooth is usually turned off, so a person may not receive a signal.

Answer 1

There is another option to determine the Wi-Fi points. But it’s more difficult here than with iBeacon, and Wi-Fi can also be turned off.

Answer 2

The API provides the ability to ask the user to turn on Bluetooth (which can be done the first time the application is launched [[CBCentralManager alloc] initWithDelegate:self queue:nil options:@{CBCentralManagerOptionShowPowerAlertKey:[NSNumber numberWithBool:NO]}

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