| 摘要 |
PROBLEM TO BE SOLVED: To provide an azimuth detector, an azimuth detecting method and the like capable of performing a precise azimuth detection with a simple structure. SOLUTION: In an azimuth detection sensor 10, coordinate information showing an azimuth or inclination by an optical code shown by a two-dimensional barcode, a mark or a pit is written on the surface of a sphere 22 to be influenced by geomagnetism, and it is read by optical code reading parts 26H and 26V, whereby the azimuth of a walker is detected. Further, such an azimuth detection sensor 10 can be provided on a walking detector, and this walking detector collects components of low frequency band transmitted within the body in walking by a microphone and performs a detection of walking on the basis of this to estimate the length of step of the walker, and it further detects the change of direction of the walker by detecting the azimuth by the azimuth detection sensor 10.
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