Loading plate for weighing systems of vehicles in motion and related constraint system
First Claim
1. A dynamic weighing system for vehicles in motion (100) comprising a substantially rectangular loading plate (110), covering the entire width of a way which the vehicles to be weighed can pass through, and wherein said loading plate (110) has the following features:
- a flat bottom face (113), substantially rectangular, having a width, along a driving direction, said width is substantially perpendicular to a width of a covered way and is greater than said width along a driving direction of its upper face (111), wherein said upper face comes in contact with a vehicle'"'"'s wheel to be weighed;
said flat bottom face (113) has two long edges which support said loading plate (110) over a cavity (103) obtained in the ground underlying said loading plate (110), and wherein said long edges are substantially perpendicular to the driving direction of a vehicle,and wherein each of said two long edges of said loading plate (110) has a vertical projection (101) of said upper face (111) on said flat bottom face (113) and wherein said vertical projection does not intersect areas of said bottom face (113) in which said loading plate (110) is supported; and
wherein the deformation of said loading plate (110) is measured to determine a weight of a passing vehicle on said loading plate (110).
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Accused Products
Abstract
The field of application of present invention relates to weighing systems of vehicles in motion also called WIM systems (Weigh In Motion).
The indicated WIM system foresees the placement of a metal plate to the street level, above which vehicles to be weighed may transit, and this metal plate, which is also called loading plate, is mounted above a cavity obtained on the road surface so that it can flex at the passage of the vehicles above it.
The system provides that the measurement of the deflection of said loading plate is carried out with the aid of suitable sensors, and that the estimated weight is obtained through the modeling of the flexing of said loading plate depending on the weight of the vehicle passing over.
The invention discloses a particularly advantage configuration to achieve a weighing system that can be modelled with the required accuracy.
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Citations
8 Claims
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1. A dynamic weighing system for vehicles in motion (100) comprising a substantially rectangular loading plate (110), covering the entire width of a way which the vehicles to be weighed can pass through, and wherein said loading plate (110) has the following features:
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a flat bottom face (113), substantially rectangular, having a width, along a driving direction, said width is substantially perpendicular to a width of a covered way and is greater than said width along a driving direction of its upper face (111), wherein said upper face comes in contact with a vehicle'"'"'s wheel to be weighed; said flat bottom face (113) has two long edges which support said loading plate (110) over a cavity (103) obtained in the ground underlying said loading plate (110), and wherein said long edges are substantially perpendicular to the driving direction of a vehicle, and wherein each of said two long edges of said loading plate (110) has a vertical projection (101) of said upper face (111) on said flat bottom face (113) and wherein said vertical projection does not intersect areas of said bottom face (113) in which said loading plate (110) is supported; and wherein the deformation of said loading plate (110) is measured to determine a weight of a passing vehicle on said loading plate (110). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification