How the smart location system works

A phone can't keep GPS on all the time — it would be flat by evening. So KidPair decides by itself when to ask for the location often and when rarely is enough, and checks every point before showing it to you.

• Calm mode. While the child is at home or staying put, the location updates every 2–10 minutes. This costs almost no battery.
• “On the way” mode turns itself on. The step counter and motion sensor notice that the child started walking or riding — and the location arrives every 10–20 seconds, the route is drawn as a line. The same mode starts when the phone leaves home Wi-Fi or moves fast.
• In traffic or at a red light the mode stays on: KidPair keeps it while the child has moved at least a little in the last 10 minutes, and returns to calm only when the child has really arrived.
• Home Wi-Fi as a landmark. The phone remembers where the network it's connected to is. If GPS indoors is off by hundreds of metres while the phone is still on the same network, the point is dropped.
• Quality checks. A weak signal (few satellites), a stale point, an impossible speed, a jump there and back — all of these are filtered out, so the map has no lines across half the city.
• Nothing is lost without internet. The phone keeps points and sends them in a batch as soon as it is online again. If there were no points at all (the phone was off or offline), that stretch is drawn dashed — honestly, without an invented route.
• “Arrived” and “left” without false alarms. Leaving a place counts only when the child is past the edge of the circle with a margin, so a point that jumped to the next street doesn't become “Masha left school”. Each device has its own record, so a tablet left at home won't say the child came back.
• Nothing to switch on: the map shows which mode the phone is in — “On the way · location updates every 10–30 seconds” or “Normal mode · location updates every 2–10 minutes, more often on the way”.