Method and device for recognizing gait information using plurality of magnetic sensors
Provided are a method and device for recognizing gait information using a plurality of magnetic sensors. The method for recognizing gait information generates a magnetic sensing signal from a magnetic paint painted on the ground, generates a frequency-converted signal using the magnetic sensing signal, and generates gait information using the frequency-converted signal.
1 . A method for recognizing walking information using multiple magnetic sensors, comprising:
generating a magnetic sensing signal from magnetic paint applied to a ground;
generating a frequency-converted signal using the magnetic sensing signal;
generating walking information using the frequency-converted signal; and
wherein the frequency-converted signal is generated by generating detection signals by detecting the magnetic sensing signal at preset periods, generating average signals by averaging a preset number of detection signals, grouping the average signals in a preset conversion unit, and performing frequency conversion thereon.
2 . The method of claim 1 , wherein the magnetic sensing signal includes a first magnetic sub-signal generated from the magnetic paint through a first magnetic sensor and a second magnetic sub-signal generated from the magnetic paint through a second magnetic sensor.
3 . The method of claim 2 , wherein the frequency-converted signal is generated using a noise-reduced signal generated using a difference between the first magnetic sub-signal and the second magnetic sub-signal.
4 . The method of claim 3 , wherein the noise-reduced signal is generated using differences between the average signals corresponding to the first magnetic sub-signal and the average signals corresponding to the second magnetic sub-signal.
5 . The method of claim 2 , further comprising:
generating direction information of the magnetic paint using a difference between a time at which the first magnetic sub-signal is received and a time at which the second magnetic sub-signal is received.
6 . The method of claim 1 , further comprising:
generating an optical sensing signal from the magnetic paint, wherein generating the walking information comprises generating the walking information using any one or more of the frequency-converted signal, or the optical sensing signal, or a combination thereof.
7 . The method of claim 6 , wherein the magnetic sensing signal corresponds to a one-dimensional magnetic pattern or a two-dimensional magnetic pattern.
8 . The method of claim 6 , wherein the optical sensing signal is configured to subdivide a magnetic pattern corresponding to the magnetic sensing signal, thereby increasing an amount of information per unit length or unit area, compared to a case in which only the magnetic sensing signal is used.
9 . An apparatus for recognizing walking information using multiple magnetic sensors, comprising:
a magnetic sensor for generating a magnetic sensing signal from magnetic paint applied to a ground;
a frequency conversion unit for generating a frequency-converted signal using the magnetic sensing signal;
a control unit for generating walking information using the frequency-converted signal; and
wherein the frequency-converted signal is generated by generating detection signals by detecting the magnetic sensing signal at preset periods generating average signals by averaging a preset number of detection signals, grouping the average signals in a preset conversion unit, and performing frequency conversion thereon.
10 . A method for recognizing information using magnetic/optical patterns, comprising:
generating magnetic sensing information from magnetic paint applied to a ground through a magnetic sensor;
generating optical sensing information from the magnetic paint through an optical sensor;
generating walking information using any one or more of the magnetic sensing information, or the optical sensing information, or a combination thereof;
providing user information corresponding to the walking information; and
wherein the magnetic sensing information corresponds to a one-dimensional magnetic pattern or a two-dimensional magnetic pattern.
11 . The method of claim 10 , wherein the optical sensing information is configured to subdivide a magnetic pattern corresponding to the magnetic sensing information, thereby increasing an amount of information per unit length or unit area, compared to a case in which only the magnetic sensing information is used.
12 . The method of claim 10 , wherein a method used for generating the walking information from the magnetic sensing information varies depending on the optical sensing information.
13 . The method of claim 10 , wherein the walking information is generated using user terminal sensor information in addition to the magnetic sensing information and the optical sensing information.
14 . The method of claim 13 , wherein the user terminal sensor information is used for correction of any one or more of the magnetic sensing information, or the optical sensing information, or a combination thereof.
15 . The method of claim 13 , wherein the magnetic sensing information is used for control of the optical sensor.
16 . An apparatus for recognizing walking information using magnetic/optical patterns, comprising:
a magnetic sensor for generating magnetic sensing information from magnetic paint applied to a ground;
an optical sensor for generating optical sensing information from the magnetic paint;
a control unit for generating walking information using any one or more of the magnetic sensing information, or the optical sensing information, or a combination thereof and providing user information corresponding to the walking information; and
wherein the magnetic sensing information corresponds to a one-dimensional magnetic pattern or a two-dimensional magnetic pattern.