Multi-geomagnetic sensor speed measurement system and a speed measurement method using the same

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United States of America Patent

PATENT NO 11908319
APP PUB NO 20220238016A1
SERIAL NO

17427573

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Abstract

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A multi-geomagnetic sensor speed measurement system comprises a geomagnetic vehicle detection module, a data transmission module, a data reception module and a backend data processing module. When measuring, the geomagnetic vehicle detection module collects the geomagnetic data when the vehicle passes and processes it to obtain temporal data; the backend processing module receives the data for data cleaning; the backend processing module selects the reference sensors and opens individual time windows; the backend processing module processes the temporal data based on the number of temporal data in the time window; in the case of duplicate-detection, a measurement threshold δ is set and the temporal data is merged based on the threshold δ; in the case of mis-detection, the data is interpolated to make up for the mis-detection; based on the alignment result, a minimum variance method is used to estimate the speed of the vehicle.

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Patent Owner(s)

Patent OwnerAddress
XIDIAN UNIVERSITY710071 XI'AN ELECTRONIC AND SCIENCE UNIVERSITY 2 TAIBAI SOUTH ROAD SHAANXI XI'AN XI'AN CITY SHAANXI PROVINCE 710071

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Yuexu Shaanxi, CN 3 1
Chen, Zhiqiang Shaanxi, CN 429 2689
Hui, Yilong Shaanxi, CN 3 1
Li, Changle Shaanxi, CN 23 59
Mao, Guoqiang Shaanxi, CN 58 1321

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