Describes how dead reckoning provides vehicle location information when GPS satellite signals are blocked. This information helps report location in areas such as tunnels where GPS reception is unavailable.
Provides location information when a vehicle enters an area that blocks reception of GPS satellite signals.
When a router is installed in a vehicle, such as a municipal services vehicle, the GPS receiver can provide accurate location information for reporting on the vehicle’s location, as long as it can receive GPS satellite signals. If the vehicle enters an area that blocks reception of satellite signals, such as a tunnel, the dead reckoning feature continues to provide location information. The location determined by dead reckoning is not as reliable as the location information from functioning GPS.