To provide a pedestrian autonomous navigation system with which it is possible to acquire the high-accuracy position data of a pedestrian.SOLUTION: The pedestrian autonomous navigation system comprises: a pedestrian autonomous navigation sensor having an acceleration sensor, an angular velocity sensor and a geomagnetic sensor; an external sensor capable of detecting that a pedestrian carrying the pedestrian autonomous navigation sensor has passed by a specific point the position information of which is identified in advance; walking direction restriction means for restricting the passage direction of the pedestrian at the specific point; geomagnetic error calculation means for calculating a difference between the progression direction detected by the geomagnetic sensor when the pedestrian passed by the specific point and a restriction passage direction, passage in which direction is restricted by the walking direction restriction means, as an error of the geomagnetic sensor; and a position calculation means for calculating, upon receiving determination of the pedestrian having passed by the specific point, the position of the pedestrian from the position information of the specific point from the external sensor, the error calculated by the geomagnetic error calculation means, and information pertaining to a relative movement position from the pedestrian autonomous navigation sensor.SELECTED DRAWING: Figure 1
【課題】高精度の歩行者の位置データを取得することが可能な歩行者自律航法システムを提供する。【解決手段】加速度センサ、角速度センサ及び地磁気センサを有する当該歩行者自律航法センサと、当該歩行者自律航法センサを所持する歩行者が、位置情報が予め特定された特定地点を通過したことを検出可能な外部センサと、特定地点において歩行者の通過方向を規制する歩行方向規制手段と、歩行者の特定地点の通過時に地磁気センサが検出した進行方向と、歩行方向規制手段によって規制された通過方向である規制通過方向との差分を地磁気センサの誤差として算出する地磁気誤差算出手段と、歩行者の特定地点の通過判定を受けて、外部センサからの当該特定地点の位置情報、地磁気誤差算出手段によって算出された誤差、歩行者自律航法センサからの相対的な移動位置に係る情報から歩行者の位置を算出する位置算出手段とを備える。【選択図】図1
PEDESTRIAN AUTONOMOUS NAVIGATION SYSTEM
歩行者自律航法システム
2022-11-04
Patent
Electronic Resource
Japanese
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