Satellite positioning apparatus for mobile units and a navigation system
First Claim
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1. A satellite positioning apparatus provided on a mobile unit for reckoning a current position of said mobile unit, said apparatus comprising:
- a positioning section for reckoning a current position of said mobile unit based on position information contained in signals from satellites, and outputting a current position reckoning signal, a state detecting section for outputting a state detection signal corresponding to a traveling state of said mobile unit, and a calculating section for calculating a reckoned position of said mobile unit based on said state detection signal and said current position reckoning signal, wherein said apparatus is removably connected to a computing system via a single data interface.
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Abstract
Satellite positioning apparatus for mobile units 10 comprises a positioning unit 11 for calculating the current position of a mobile unit based on position information contained in signals from satellites received via a GPS antenna 17, state detecting units 12, 14 for outputting state detection signals corresponding to the traveling state of the mobile unit, and a calculating unit 11 for calculating the reckoned position of the mobile unit based on the state detection signal output from the state detecting unit and current position reckoning signal.
17 Citations
20 Claims
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1. A satellite positioning apparatus provided on a mobile unit for reckoning a current position of said mobile unit, said apparatus comprising:
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a positioning section for reckoning a current position of said mobile unit based on position information contained in signals from satellites, and outputting a current position reckoning signal, a state detecting section for outputting a state detection signal corresponding to a traveling state of said mobile unit, and a calculating section for calculating a reckoned position of said mobile unit based on said state detection signal and said current position reckoning signal, wherein said apparatus is removably connected to a computing system via a single data interface. - View Dependent Claims (2, 3, 13, 15, 16)
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4. A satellite positioning apparatus provided on a mobile unit for reckoning a current position of said mobile unit, said apparatus comprising:
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a positioning section for reckoning a current position of said mobile unit based on position information contained in signals from satellites and outputting a positioning reckoning signal;
a state detecting section for outputting a state detection signal corresponding to a traveling state of said mobile unit;
a calculating section for calculating a reckoned position of said mobile unit based on said state detection signal and said current position reckoning signal; and
a signal converting section for converting an output signal output from said calculating section representing the reckoned position of said mobile unit to a predetermined transmission signal. - View Dependent Claims (5, 6)
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7. A navigation system comprising a computing system which allows position display of a mobile unit and satellite positioning apparatus for mobile units using satellites for reckoning the current position of the mobile unit, connected to the computing system,
said satellite positioning apparatus for mobile units comprising: -
positioning section for reckoning the current position of the mobile unit based on the position information contained in signals from said satellites, state detecting section for outputting a state detection signal corresponding to the traveling state of said mobile unit, calculating section for calculating the reckoned position of said mobile unit based on the state detection signal output from the state detecting section and the current position reckoning signal, and signal converting section for converting an output signal from the calculating section to a predetermined transmission signal, wherein said computing system comprises an interface for receiving said predetermined transmission signal. - View Dependent Claims (8, 9, 10, 11, 12)
signal converting section for converting an output signal output from said calculating section representing the reckoned position of the mobile unit to a predetermined transmission signal.
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11. The navigation system according to claim 10, wherein
a transmission system of said predetermined transmission signal is a daisy chain. -
12. The navigation system according to claim 10, wherein
said predetermined transmission signal is transmitted via a universal serial bus.
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14. A satellite positioning apparatus provided on a mobile unit for reckoning a current position of said mobile unit, said apparatus comprising:
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a positioning section for reckoning a current position of said mobile unit based on position information contained in signals from satellites, and outputting a current position reckoning signal, a state detecting section for outputting a state detection signal corresponding to a traveling state of said mobile unit, and a calculating section for calculating a reckoned position of said mobile unit based on said state detection signal and said current position reckoning signal, wherein said apparatus is removably connected to a computing system, and wherein said apparatus employs a dead reckoning protocol to reckon a travel distance and heading of said mobile unit.
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17. A satellite positioning apparatus provided on a mobile unit for reckoning a current position of said mobile unit, said apparatus comprising:
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a positioning section for reckoning a current position of said mobile unit based on position information contained in signals from satellites, and outputting a current position reckoning signal, a state detecting section for outputting a state detection signal corresponding to a traveling state of said mobile unit, and a calculating section for calculating a reckoned position of said mobile unit based on said state detection signal and said current position reckoning signal, wherein said apparatus is removably connected to a computing system, and wherein said apparatus and external units are connected to said computing system at a single data interface. - View Dependent Claims (18, 19)
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20. A satellite positioning apparatus provided on a mobile unit for reckoning a current position of said mobile unit, said apparatus comprising:
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a positioning section for reckoning a current position of said mobile unit based on position information contained in signals from satellites, and outputting a current position reckoning signal, a state detecting section for outputting a state detection signal corresponding to a traveling state of said mobile unit, and a calculating section for calculating a reckoned position of said mobile unit based on said state detection signal and said current position reckoning signal, wherein said apparatus is removably connected to a computing system, and wherein a signal from said calculating section depends upon a number of satellites acquired by said apparatus, and a calibration status of an output of said state detecting section.
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Specification