Digital compass

Digital compass

  • CN 1,786,664 A
  • Filed: 09/22/2005
  • Published: 06/14/2006
  • Est. Priority Date: 09/22/2005
  • Status: Active Grant
First Claim
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1. , a kind of digital compass, data processing equipment that the magnetic north data detection device is arranged, is connected with the magnetic north data detection device and the digital output feature that is connected with data processing equipment is characterized in that having in the said data processing equipment:

  • One satellite signal processing unit, said satellite signal processing unit is connected with the satellite-signal receiver, and satellite signal processing unit that is connected and satellite-signal receiver are formed satellite positioning device;

    One storer, be used to store typing in advance with the corresponding magnetic biasing difference of each geographic position data of earth surface;

    One compensator, connect magnetic north data detection device and storer, be used for the magnetic north data of reading from the magnetic north data detection device being compensated, and compensation result is outputed to digital output feature by data processing equipment with the up-to-date corresponding magnetic biasing difference of earth surface geographic position data with satellite positioning device output of reading from storer.

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