Navigation System and Method for Controlling the Same
First Claim
1. A navigation system comprising:
- a GPS receiving module for receiving navigation messages transmitted from GPS satellites via an antenna;
a terrestrial magnetic field sensor module for detecting a terrestrial magnetic field;
an acceleration speed sensor for detecting an acceleration speed of a mobile object;
a speed detecting module for detecting a travel speed of the mobile object using the acceleration speed detected by the acceleration speed sensor;
a map storage for storing a map data; and
a central processing unit for determining a current position of the mobile object via output signals outputted from the GPS receiving module, the terrestrial magnetism sensor module and the speed detecting module and matching the current position of the mobile object thus determined to a map data stored in the map storage and displaying the matched map data on a display unit.
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Accused Products
Abstract
A navigation system and a method for controlling the same wherein navigation functions are integrally mounted in a mobile communication terminal to enable to guide the travel of a mobile object in real time. A GPS receiving module is integrally mounted in the mobile communication terminal to receive navigation messages transmitted by the GPS satellites and to detect the position of the mobile object, terrestrial magnetic field is detected by a terrestrial magnetic field sensor module to detect an azimuth of the mobile object, an acceleration speed is detected by an acceleration speed sensor, and the travel speed of the mobile object is calculated by a speed detecting module using the acceleration speed thus detected, a current position of the mobile object is determined by an output signal from the GPS receiving module, the terrestrial magnetic field sensor module, and the speed detecting module, and the current position of the mobile object thus determined is matched to a map data stored in a map storage for display in a display unit.
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Citations
30 Claims
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1. A navigation system comprising:
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a GPS receiving module for receiving navigation messages transmitted from GPS satellites via an antenna;
a terrestrial magnetic field sensor module for detecting a terrestrial magnetic field;
an acceleration speed sensor for detecting an acceleration speed of a mobile object;
a speed detecting module for detecting a travel speed of the mobile object using the acceleration speed detected by the acceleration speed sensor;
a map storage for storing a map data; and
a central processing unit for determining a current position of the mobile object via output signals outputted from the GPS receiving module, the terrestrial magnetism sensor module and the speed detecting module and matching the current position of the mobile object thus determined to a map data stored in the map storage and displaying the matched map data on a display unit. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A navigation system comprising:
- a telephone communication unit for implementing a telephone communication;
a modulating/demodulating unit mounted between an antenna and the telephone communication unit for demodulating a voice signal received via the antenna to output the modulated voice signal to the telephone communication unit, and modulating the voice signal inputted from the telephone communication unit to transmit the modulated voice signal via the antenna;
a GPS receiving module for receiving navigation messages transmitted from GPS satellites via an antenna;
a terrestrial magnetic field sensor module for detecting a terrestrial magnetic field;
an acceleration speed sensor for detecting an acceleration speed of a mobile object;
a speed detecting module for detecting a travel speed of the mobile object using the acceleration speed detected by the acceleration speed sensor;
a map storage for storing a map data; and
a central processing unit for determining a current position of the mobile object via output signals outputted from the GPS receiving module, the terrestrial magnetism sensor module and the speed detecting module and matching the current position of the mobile object thus determined to a map data stored in the map storage and displaying the matched map data on a display unit. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
- a telephone communication unit for implementing a telephone communication;
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17. A controlling method of a navigation system, the method comprising the steps of:
- reading out a map data of a predetermined region from a map storage based on a current position of a mobile object detected by a GPS receiving module receiving navigation messages;
discriminating whether there is a trustworthiness of the current position of the mobile object detected by the GPS receiving module via the navigation messages;
determining as a current position of the mobile object the position detected by the GPS receiving module via the navigation messages if there is trustworthiness as a result of the discrimination;
determining a current position of the mobile object by using the terrestrial magnetic field detected by the terrestrial magnetic field sensor module and the acceleration speed of the mobile object detected by the acceleration speed sensor if there is no trustworthiness as a result of the discrimination; and
matching the current position of the mobile object thus determined to the map data and displaying the matched current position of the mobile object on a display unit. - View Dependent Claims (18, 19, 20, 21, 22, 23)
- reading out a map data of a predetermined region from a map storage based on a current position of a mobile object detected by a GPS receiving module receiving navigation messages;
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24. A controlling method of a navigation system, the method comprising the steps of:
- reading out a map data from a map storage to search a travel route of a mobile object from a starting point to a destination of the mobile object;
discriminating whether there is a trustworthiness in a current position of the mobile object detected by a GPS receiving module via navigation messages if the mobile object travels following the search of the travel route;
determining as a current position of the mobile object the position detected by the GPS receiving module receiving the navigation messages if there is a trustworthiness as a result of the discrimination;
determining a current position of the mobile object by using the terrestrial magnetic field detected by the terrestrial magnetic field sensor module and the acceleration speed of the mobile object detected by the acceleration speed sensor if there is no trustworthiness as a result of the discrimination; and
matching the current position of the mobile object thus determined to the map data, displaying the matched current position of the mobile object on a display unit and guiding the searched travel route. - View Dependent Claims (25, 26, 27, 28, 29, 30)
- reading out a map data from a map storage to search a travel route of a mobile object from a starting point to a destination of the mobile object;
Specification