MULTILANE VEHICLE INFORMATION CAPTURE SYSTEM
First Claim
1. A system configured to determine a vehicle position in a multilane open road environment, the system comprising:
- a plurality of induction loop sensors positioned to detect vehicles within a pair of adjacent lanes;
an RF system configured to communicate with RF transponders carried by vehicles within the pair of adjacent lanes;
one or more processors configured (i) to determine first vehicle position information related to the position of a vehicle in the pair of adjacent lanes based on output of the induction loop sensors, (ii) to determine second vehicle position information related to the position of the vehicle in the pair of adjacent lanes based on output of the RF system, (iii) to make a final determination of the position of the vehicle in the pair of adjacent lanes based on the first vehicle position information and the second vehicle position information.
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Accused Products
Abstract
A system and method for accurate express tolling of highway vehicles. A multilane tolling system comprises a tolling (MVIC) unit that collects information from tolling subsystems arranged to take various vehicle measurements. Preferably, an intelligent vehicle identification subsystem sends vehicle information to the MVIC unit many times per second. Preferably, a vision tracking system (VTS) communicates with the MVIC unit and sends the latter information about the vehicle position using vision tracking sensors. Preferably, an RF subsystem conducts multiple reads of a transponder on a passing vehicle and forwards the read information to the MVIC unit. Preferably, a vehicle image capture unit (VICU) captures images of the passing vehicle when a camera in the VICU receives a trigger from the MVIC unit. Preferably, a driver alert module is used alert a driver passing through a tolling point as to account balance associated with a silent toll tag or pay by plate system.
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Citations
19 Claims
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1. A system configured to determine a vehicle position in a multilane open road environment, the system comprising:
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a plurality of induction loop sensors positioned to detect vehicles within a pair of adjacent lanes; an RF system configured to communicate with RF transponders carried by vehicles within the pair of adjacent lanes; one or more processors configured (i) to determine first vehicle position information related to the position of a vehicle in the pair of adjacent lanes based on output of the induction loop sensors, (ii) to determine second vehicle position information related to the position of the vehicle in the pair of adjacent lanes based on output of the RF system, (iii) to make a final determination of the position of the vehicle in the pair of adjacent lanes based on the first vehicle position information and the second vehicle position information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A system configured to determine a vehicle position in a multilane open road environment, the system comprising:
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a first set of sensors made up of sensors of a first sensor type, wherein the sensors in the first set of sensors are positioned to detect vehicles within a pair of adjacent lanes; an RF system configured to communicate with RF transponders carried by vehicles within the pair of adjacent lanes; one or more processors configured (i) to determine first vehicle position information related to the position of a vehicle in the pair of adjacent lanes based on output of the first set of sensors, (ii) to determine second vehicle position information related to the position of the vehicle in the pair of adjacent lanes based on output of the RF system, (iii) to make a final determination of the position of the vehicle in the pair of adjacent lanes based on the first vehicle position information and the second vehicle position information. - View Dependent Claims (16, 17, 18, 19)
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Specification