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1. US20030018430 - Pedestrian navigation method and apparatus operative in a dead reckoning mode

专利局 美国
申请号 09839204
申请日 23.04.2001
公布号 20030018430
公布日 23.01.2003
授权号 6826477
授权日 30.11.2004
公布类型 B2
国际专利分类
[IPC code unknown for C01C 21]
G PHYSICS
01
用于测量的传感器,如敏感元件
C
测量距离、水准或者方位;勘测;导航;陀螺仪;摄影测量学或视频测量学
21
导航;不包含在G01C 1/00至G01C 19/00组中的导航仪器
10
通过速度或加速度的测量
G PHYSICS
01
用于测量的传感器,如敏感元件
C
测量距离、水准或者方位;勘测;导航;陀螺仪;摄影测量学或视频测量学
21
导航;不包含在G01C 1/00至G01C 19/00组中的导航仪器
10
通过速度或加速度的测量
12
在被导航的物体上进行测量;根据测量推算航位
16
采用积分加速度或速度的方法,即惯性导航
G PHYSICS
01
用于测量的传感器,如敏感元件
C
测量距离、水准或者方位;勘测;导航;陀螺仪;摄影测量学或视频测量学
22
测量车辆、人员、动物或其他运动的固态物体在地面行驶的距离,例如,应用里程计或应用计步器
C01C 21/00
G01C 21/10
G01C 21/16
G01C 22/00
CPC
G06K 9/00348
G01C 21/16
G01C 21/206
G01C 22/006
申请人 Ecole Polytechnique Federale de Lausanne (EPFL)
发明人 Ladetto, Quentin
Gabaglio, Vincent
Van Seeters, Josephus
代理人 Oliff & Berridge, PLC
优先权数据 09839204 23.04.2001 US
标题
(EN) Pedestrian navigation method and apparatus operative in a dead reckoning mode
摘要
(EN)

A displacement of a pedestrian is determined from his or her accelerations by detecting accelerations which is substantially non vertical, determining a characteristic feature in the detected accelerations correlated with a step frequency, determining the displacement on the basis of said determined characteristic.

The acceleration data can be submitted to waveform analysis to determine an actualized time interval of an occurring feature, such a maximum values, from which it is determined whether the actualized time period falls within determined limit values. The currently detected characteristic feature is then determined as corresponding to a displacement step if the actualized time period falls within said determined limit value.

By using non-vertical acceleration measurements, the invention can make it possible to distinguish between forward, backward, left and right stepping movements and take these into account for the navigation.