Off-board navigation system and method for calibrating error using the same
First Claim
1. A navigation system, comprising:
- a server for calculating a predetermined path using a pre-stored map in response to a request from a terminal, generating calibration information based upon the calculated path, and transmitting to the terminal the calculated path and the calibration information; and
the terminal for requesting the calculations, receiving the calculated path and the calibration information from the server, comparing the calibration information and position information measured by sensors embedded in the terminal, and calibrating the sensors.
1 Assignment
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Accused Products
Abstract
An off-board navigation system and method for calibrating an error using the same. A server provided in the off-board navigation system calculates a predetermined path using a pre-stored map in response to a request, generates calibration information based upon the calculated path, and transmits the calculated path and the calibration information. A terminal provided in the off-board navigation system requests that the server calculate the predetermined path, receives the calculated path and the calibration information, compares the calibration information and position information measured by sensors embedded in the terminal, and compensates for the sensors. The off-board navigation system can calibrate a position error between map information and actual traveling information, and hence can improve the accuracy of navigation service.
7 Citations
12 Claims
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1. A navigation system, comprising:
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a server for calculating a predetermined path using a pre-stored map in response to a request from a terminal, generating calibration information based upon the calculated path, and transmitting to the terminal the calculated path and the calibration information; and
the terminal for requesting the calculations, receiving the calculated path and the calibration information from the server, comparing the calibration information and position information measured by sensors embedded in the terminal, and calibrating the sensors. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for performing an error calibration operation in a navigation system including a server and a terminal, comprising the steps of:
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(a) receiving and storing calibration section information designated by the server, and receiving current position data of the terminal from sensors embedded in the terminal;
(b) comparing a current position of the terminal and the section information, and determining of the current position of the terminal is contained in a calibration section;
(c) storing the current position data of the terminal if the current position of the terminal is contained in the calibration section, and receiving next position data from the sensors;
(d) comparing the stored position data with data of the calibration section if the current position of the terminal is not contained in the calibration section, and generating sensor calibration data; and
(e) calibrating the sensors using the sensor calibration data. - View Dependent Claims (12)
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Specification