News Item

Geomagnetics for indoor positioning

Magnetic positioning - monitoring the local magnetic field within a building - appears to give remarkably accurate location.

Each building or structure has a unique magnetic 'fingerprint', based on the way building materials affect and distort the otherwise constant Earth's magnetic field. These patterns of distortions can be precisely assigned to a building floor plan, enabling smartphone owners to be located within the likes of shops, hospitals, malls, airports and stations to within 1-2 m.

Such an indoor positioning system (IPS) utilises the built-in magnetic sensor - the compass - as well as other sensors (such as an altimeter) within a smartphone, to locate its position within a pre-surveyed magnetic map. Software plots the indoor location in the same way that a GNSS app would do outdoors.

No infrastructure is required within a building - just an accurate survey undertaken - but positioning can be further refined with such as WiFi and beacons if available.

Leaders in the technology are IndoorAtlas - their website can be found at the link below . .

  • 25 June 2016
  • RIN

Contact Us

The Royal Institute of Navigation
1 Kensington Gore
London
SW7 2AT

+44 (0)20 7591 3134
admin@rin.org.uk

E-Mail Communication

The Royal Institute of Navigation periodically sends out email updates to its membership and those who have subscribed to events and conferences run by the RIN. In doing so, the RIN takes all reasonable precautions to ensure that the emails are only sent to those who have requested them, and that no third party can make unauthorised use of any @rin.org.uk email address to send out mailings.If you receive unsolicited mail from any @rin.org.uk address then please inform us at admin@rin.org.uk and we will take appropriate action.

Join the RIN

You can apply for any category of RIN membership by completing the online membership application form and paying using our secure credit/debit card payment system.

Join Now