Sensor-network-based geomagnetic induction vehicle clock synchronization technology
A geomagnetic induction and clock synchronization technology, applied in the directions of synchronization devices, network topology, electrical components, etc., can solve problems such as difficulty in practicality, achieve the effect of convenient intelligent control and management, and reduce manual intervention
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[0017] The present invention will be further elaborated below in conjunction with the accompanying drawings.
[0018] like figure 1 As shown, it consists of ZigBee sensor network, gateway, mobile base station and Internet. Although different smart transportation applications have different requirements for the number of sensor network points, the deployment of sensor network nodes is basically the same. When a vehicle enters the geomagnetic induction area, the detector (wireless sensing node) after the clock synchronization will exchange the collected vehicle information between adjacent nodes through the wireless network carrier, and finally obtain the vehicle's speed, Length (i.e. vehicle type) and other information are transmitted to the road traffic control center through the sensor network, mobile network and Internet.
[0019] like figure 2 As shown, the three nodes a, b, and c are geomagnetic sensor nodes, and the distance between them is generally about half of the...
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