Portable Navigation System
First Claim
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1. A personal navigation and positioning system comprising:
- a navigation module includinga navigation satellite receiver operable to receive satellite navigation data;
a plurality of dead reckoning sensors operable to measure dead reckoning data;
a processing device configured todetermine the mode of locomotion of the personal navigation and positioning system based on one or more of the user input, satellite navigation data and dead reckoning measurement data;
select based on the determined mode of locomotion a data processing algorithm out of a plurality of data processing algorithms; and
process the satellite navigation data and dead reckoning measurement data using the selected data processing algorithm to determine the location and orientation of the personal navigation and positioning system; and
a display operable to display the location and orientation information in a graphical form, the display being detachably joined to the navigation module as to allow free movement of the display relative to the navigation module without impairing the dead reckoning measurements.
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Abstract
An apparatus and method for providing personal navigation and location information is disclosed. For one embodiment, a personal navigation system includes a navigation module to receive and determine personal navigation and location information and a display communicatively coupled to the sensor for displaying the personal navigation and location information to a user. The display is detachably joined to the sensor allowing the display to be detached from the sensor and moved such that movement of the display does not impair the determination of the personal navigation and location information.
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Citations
20 Claims
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1. A personal navigation and positioning system comprising:
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a navigation module including a navigation satellite receiver operable to receive satellite navigation data; a plurality of dead reckoning sensors operable to measure dead reckoning data; a processing device configured to determine the mode of locomotion of the personal navigation and positioning system based on one or more of the user input, satellite navigation data and dead reckoning measurement data; select based on the determined mode of locomotion a data processing algorithm out of a plurality of data processing algorithms; and process the satellite navigation data and dead reckoning measurement data using the selected data processing algorithm to determine the location and orientation of the personal navigation and positioning system; and a display operable to display the location and orientation information in a graphical form, the display being detachably joined to the navigation module as to allow free movement of the display relative to the navigation module without impairing the dead reckoning measurements. - View Dependent Claims (2, 3, 4, 5)
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6. A method for personal navigation using a personal navigation device, the method comprising:
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receiving satellite navigation data indicative of the location of the personal navigation device; performing dead reckoning measurements to generate data indicative of the location of the personal navigation device; determining the locomotion mode of the personal navigation device based on one or more of the user input, satellite navigation data and dead reckoning measurement data; selecting based on the determined locomotion mode a data processing algorithm out of plurality of data processing algorithms; processing the satellite navigation data and dead reckoning measurement data using the selected data processing algorithm to determine the location and orientation of the personal navigation device; and communicating the location and orientation information to a remote display, wherein the movement of the display does not impair the dead reckoning measurements. - View Dependent Claims (7, 8, 9, 10)
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11. A method for personal navigation using a personal navigation device, the method comprising:
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receiving satellite navigation data indicative of the location of the personal navigation device; receiving dead reckoning measurement data indicative of the location of the personal navigation device; determining the dynamics of the motion of the personal navigation device based on one or more of the satellite navigation data and dead reckoning measurement data; selecting based on the motion dynamics a data processing algorithm out of plurality of data processing algorithms; processing the satellite navigation data and dead reckoning measurement data using the selected data processing algorithm to determine the location and orientation of the personal navigation device; and communicating the location and orientation information to a remote display, wherein the movement of the display does not impair the dead reckoning measurements. - View Dependent Claims (12, 13, 14, 15)
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16. A machine-readable medium that provides executable instructions, which when executed by a processor, cause the processor to perform a method, the method comprising:
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receiving satellite navigation data indicative of the location and orientation of a personal navigation device; receiving dead reckoning measurement data indicative of the location and orientation of the personal navigation device; determining the locomotion mode of the personal navigation device based on one or more of the user input, satellite navigation data and dead reckoning measurement data; selecting based on the determined locomotion mode a data processing algorithm out of plurality of data processing algorithms; processing the satellite navigation data and dead reckoning measurement data using the selected data processing algorithm to determine the location and orientation of the personal navigation device; and communicating the location and orientation information to a remote display, wherein the movement of the display does not impair the dead reckoning measurements. - View Dependent Claims (17, 18, 19, 20)
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Specification