GPS errors near tall buildings
In areas of sky scrapers there is a phenomenon called "reflection", where the signal from satellites reflects through the buildings and may cause the location to be off.
We cannot eliminate the GPS errors, but we can indicate to you that accuracy is limited. Our analytics will also filter out many of the false exits from indoors locations due to GPS reception issues.
Still, in downtown areas the solution will have accuracy limitations. What this means is that if your child is lost downtown, the GPS may have more significant errors. It is the limitations of the core GPS technology, regardless of AngelSense.
Official U.S. government information about the Global Positioning System (GPS) and related topics
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