Vehicle measuring apparatus and method for toll collection system
First Claim
1. A vehicle measuring apparatus comprising:
- a plurality of laser sensors separated with a predetermined height from a road surface and installed closely to each other corresponding to width of every road way, and for providing a signal to measure the vehicle; and
a processor means electrically connected to the laser sensors and for computing height and width of the vehicle on the basis of the signal received from the laser sensors and previously stored installation information of the plurality of laser sensors.
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Accused Products
Abstract
Vehicle measuring apparatus and method are disclosed to accurately measure height and width of a vehicle moving at a high speed. The vehicle measuring apparatus includes: a plurality of laser sensors separated from the road surface with a predetermined height and installed closely to each other corresponding to width of every roadway on the road, and receiving a reflection light of a laser light emitted onto the road from the plurality of the laser sensors and outputting a vehicle measurement signal; and a processor means electrically connected to the laser sensors and calculating height and width of the vehicle on the basis of the signal to measure the vehicle and previously stored installation information of the plurality of laser sensors.
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Citations
18 Claims
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1. A vehicle measuring apparatus comprising:
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a plurality of laser sensors separated with a predetermined height from a road surface and installed closely to each other corresponding to width of every road way, and for providing a signal to measure the vehicle; and
a processor means electrically connected to the laser sensors and for computing height and width of the vehicle on the basis of the signal received from the laser sensors and previously stored installation information of the plurality of laser sensors. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A vehicle measuring method comprising the steps of:
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sequentially driving a plurality of laser sensors separated from the road surface with a predetermined height and installed closely to each other corresponding to width of every roadway on the road;
measuring a lapse time from a time point of emitting a laser light emitted from the plurality of laser sensors according to driving of the plurality of laser sensors to a time point of receiving light;
calculating a distance corresponding to the measured lapse time; and
computing height and width of a vehicle on the base of the calculated distance value.
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18. A vehicle measuring method comprising the steps of:
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grouping a plurality of laser sensors separated from the road surface with a predetermined height and installed closely to each other corresponding to width of every roadway on the road into a plurality of groups corresponding to each roadway;
sequentially driving the plurality of laser sensors in a group one by one and simultaneously driving the plurality of laser sensor groups;
measuring a lapse time from a time point of emitting a laser light emitted from the plurality of laser sensors according to driving of the plurality of laser sensors to a time point of receiving light;
calculating a distance corresponding to the measured lapse time; and
computing height and width of a vehicle on the base of the calculated distance value.
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Specification