There is disclosed a direction guiding method including acquiring information on an arrival location to be reached by a passer-by, recognizing a marker on which identifying information is recorded by photographing the marker, outputting a direction in which the passer-by is to move for the passer-by to move to the arrival location, and displaying the photographed first marker on a display unit. According to the method, a route guidance technology may be provided that is capable of quickly, easily, and accurately constructing a destination even indoors where GPS signals do not arrive.

There is disclosed a direction guiding method including acquiring information on an arrival location to be reached by a passer-by, recognizing a marker on which identifying information is recorded by photographing the marker, outputting a direction in which the passer-by is to move for the passer-by to move to the arrival location, and displaying the photographed first marker on a display unit. According to the method, a route guidance technology may be provided that is capable of quickly, easily, and accurately constructing a destination even indoors where GPS signals do not arrive.

Embodiments of the present invention disclose a method and system for indicating a direction. The method is executed by a mobile terminal, and includes: determining an orientation of a screen of the mobile terminal; determining any direction in four directions east, south, west, and north of a location of the mobile terminal; determining another direction based on the determined direction when the screen of the mobile terminal is determined to be downward, so that directions for every 90 are respectively the east, the north, the west, and the south in a clockwise direction; and displaying all the determined directions on the screen of the mobile terminal. By using the solutions in the embodiments, a user can obtain a correct direction indication even when holding the mobile terminal non-horizontally, so that accuracy of the direction indication of the mobile terminal is improved.

Embodiments of the present invention disclose a method and system for indicating a direction. The method is executed by a mobile terminal, and includes: determining an orientation of a screen of the mobile terminal; determining any direction in four directions east, south, west, and north of a location of the mobile terminal; determining another direction based on the determined direction when the screen of the mobile terminal is determined to be downward, so that directions for every 90 are respectively the east, the north, the west, and the south in a clockwise direction; and displaying all the determined directions on the screen of the mobile terminal. By using the solutions in the embodiments, a user can obtain a correct direction indication even when holding the mobile terminal non-horizontally, so that accuracy of the direction indication of the mobile terminal is improved.

This electronic compass has a magnetic sensor for detecting two predetermined axis components out of the three geomagnetic axis components in a location and generating biaxial magnetic detection data corresponding to the magnitudes of the components, an acceleration sensor for detecting three axis components of the acceleration thereof and generating triaxial acceleration detection data corresponding to the three axis components, and an azimuth angle detection unit for calculating assumed magnetic detection data corresponding to the one remaining undetected axis component of the three geomagnetic axis components from the biaxial magnetic detection data, the triaxial acceleration detection data, and the magnitude and the magnetic dip of the geomagnetic field and detecting an azimuth angle by determining the component of the geomagnetic field parallel to the surface of the earth using the assumed magnetic detection data.

Embodiments of the present invention disclose a method and system for indicating a direction. The method is executed by a mobile terminal, and includes: determining an orientation of a screen of the mobile terminal; determining any direction in four directions east, south, west, and north of a location of the mobile terminal; determining another direction based on the determined direction when the screen of the mobile terminal is determined to be downward, so that directions for every 90 are respectively the east, the north, the west, and the south in a clockwise direction; and displaying all the determined directions on the screen of the mobile terminal. By using the solutions in the embodiments, a user can obtain a correct direction indication even when holding the mobile terminal non-horizontally, so that accuracy of the direction indication of the mobile terminal is improved.

A high precision magnetic compass based on a Hall probe. The probe is oriented at an angle of 90 degrees to the rotation axis of the device. An oscillating component of the signal from the probe, synchronized with the device rotation, is transferred to the non-rotation frame and is used to align the axis of rotation to be parallel to the magnetic field. The device does not require prior calibration. It is insensitive to drift of the probe parameters and can provide an angle with precision equal to or better than a 0.05 degree.

A high precision magnetic compass based on a Hall probe. The probe is oriented at an angle of 90 degrees to the rotation axis of the device. An oscillating component of the signal from the probe, synchronized with the device rotation, is transferred to the non-rotation frame and is used to align the axis of rotation to be parallel to the magnetic field. The device does not require prior calibration. It is insensitive to drift of the probe parameters and can provide an angle with precision equal to or better than a 0.05 degree.

The electronic compass device for a vehicle is installed in an attachment position of a rearview mirror inside a vehicle interior, and is connected to a coupling body disposed on a windshield of a vehicle in parallel with a centerline of the vehicle. Then, the electronic compass device for a vehicle displays a compass calibration screen in accordance with a signal received from the portable electronic compass calibration device. The portable electronic compass calibration device creates calibration information by using the acquired image of the compass calibration screen and the coupling body, and the bearing of the electronic compass at the time of acquiring the image so as to transmit the created calibration information to the electronic compass device for a vehicle. The electronic compass device for a vehicle calibrates the bearing in the traveling direction of the vehicle based on the received calibration information.

The electronic compass device for a vehicle is installed in an attachment position of a rearview mirror inside a vehicle interior, and is connected to a coupling body disposed on a windshield of a vehicle in parallel with a centerline of the vehicle. Then, the electronic compass device for a vehicle displays a compass calibration screen in accordance with a signal received from the portable electronic compass calibration device. The portable electronic compass calibration device creates calibration information by using the acquired image of the compass calibration screen and the coupling body, and the bearing of the electronic compass at the time of acquiring the image so as to transmit the created calibration information to the electronic compass device for a vehicle. The electronic compass device for a vehicle calibrates the bearing in the traveling direction of the vehicle based on the received calibration information.