Systems and methods for monitoring roadways using magnetic signatures
First Claim
1. A system for monitoring a vehicle travelling along a roadway comprising:
- a first means for measuring magnetic signatures of predetermined points along said roadway wherein said predetermined points are used to generate a connection graph corresponding to distinct pathways within said roadway;
a second means for measuring magnetic signatures that is located in said vehicle travelling along said roadway;
a non-transitory computer readable medium with computer executable instructions stored thereon executed by a processor to transmit said magnetic signatures measured by said second means for measuring magnetic signatures from said vehicle;
a server to generate said connection graph based on said magnetic signatures of predetermined points, wherein said server receives said transmitted magnetic signatures from said vehicle, and wherein said server compares said received magnetic signatures to said magnetic signatures in said connection graph to determine path of said vehicle along said roadway; and
a database for storing said magnetic signatures in said connection graph and said magnetic signatures received from said vehicle travelling along said roadway.
1 Assignment
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Accused Products
Abstract
A system and method are disclosed for using magnetic signatures at predetermined positions along a roadway to monitor traffic travelling along the roadway by comparing the predetermined magnetic signatures with magnetic signatures being dynamically and continuously measured by each vehicle as they travel along the roadway. Magnetometers incorporated into mobile devices or otherwise incorporated within the vehicle measure magnetic signatures for comparison to the predetermined magnetic signatures that form a connection graph or database of points that correspond to possible paths along a roadway. When a magnetic signature match is made, the system recognizes that the vehicle has passed a particular point on a roadway and forwards that information to the appropriate entity for further processing, analysis, or toll assessment.
38 Citations
20 Claims
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1. A system for monitoring a vehicle travelling along a roadway comprising:
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a first means for measuring magnetic signatures of predetermined points along said roadway wherein said predetermined points are used to generate a connection graph corresponding to distinct pathways within said roadway; a second means for measuring magnetic signatures that is located in said vehicle travelling along said roadway; a non-transitory computer readable medium with computer executable instructions stored thereon executed by a processor to transmit said magnetic signatures measured by said second means for measuring magnetic signatures from said vehicle; a server to generate said connection graph based on said magnetic signatures of predetermined points, wherein said server receives said transmitted magnetic signatures from said vehicle, and wherein said server compares said received magnetic signatures to said magnetic signatures in said connection graph to determine path of said vehicle along said roadway; and a database for storing said magnetic signatures in said connection graph and said magnetic signatures received from said vehicle travelling along said roadway. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for monitoring a vehicle travelling along a roadway comprising the steps of:
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measuring magnetic signatures of predetermined points used to generate a connection graph corresponding to distinct pathways within said roadway; storing said magnetic signatures of predetermined points in a database; generating said connection graph corresponding to distinct pathways within said roadway based on said magnetic signatures of predetermined points; receiving magnetic signatures of points along said roadway from a vehicle travelling along said roadway; comparing said magnetic signatures of predetermined points in said connection graph with said received magnetic signatures to determine whether said vehicle crossed over said predetermined points within a defined tolerance; generating vehicle route information based on magnetic signature matches associated with said connection graph; and sending said vehicle route information to an entity responsible for roadway monitoring. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A non-transitory computer readable medium with computer executable instructions stored thereon executed by a processor to perform the method for monitoring the travel of a vehicle along a roadway, said method comprising the steps of:
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receiving signal that said vehicle has crossed a geofence associated with said roadway; activating a range of functions of said computer executable instructions after receipt of said signal that said vehicle has crossed a geofence associated with said roadway; receiving magnetic signatures of points along said roadway from a magnetic signature measuring device; transmitting said magnetic signatures for comparison with predetermined magnetic signatures in a connection graph corresponding to distinct pathways within said roadway; and deactivating a range of functions of said computer executable instructions after receipt of a signal that said vehicle has crossed a predetermined point corresponding to a tollway exit. - View Dependent Claims (17, 18, 19, 20)
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Specification