Buried person locator computes position from satellite signals, receives position values from another locator, compares with own computed position values to determine location of other locator

摘要

The device has a receiver (14,26) of navigation satellite (16) signals, a position computer (20) that computes first position signals from the satellite signals and a transmitter (22) of computed position value signals. The receiver can also receive corresponding position values from another locator and compare them with its own computed position values to determine the location of the other locator that are output via an output device (30,32).