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Design of a Vehicle Detection System Based on Geomagnetic Signals
Author(s): 
Pages: 55-60
Year: Issue:  3
Journal: Journal of Wuyi University(Natural Science Edition)

Keyword:  geomagnetic detectingtraffic flow detectionanti-pulse interference averaging filtering algorithmstate machine detection algorithm;
Abstract: Geomagnetic detecting is a new type of vehicle detecting technology. But the geomagnetic detection equipment available on the market is limited by the sampling rate and accuracy which cannot meet the actual needs. This paper develops a geomagnetic detection system based on the HMC5983 integrated module, which consists of a magnetic sensor, a wireless transmission network, a principal computer and the supporting software. It can change the geomagnetic disturbance caused by passing cars into dynamic voltage signals and can realize real time monitoring of vehicles by monitoring of the voltage signals. Actual road tests show that the sampling rate of the system is 220 Hz and the accuracy rate is 98.7%.
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