Weight measuring device, weight measurement method, displacement coefficient calculating device, and displacement coefficient calculation method
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorTaro Imagawa
Life of this patent
Estimating the term…
Abstract
A weight measuring device includes a displacement amount detector, a storage unit, and a weight calculator. The displacement amount detector detects, by using a captured image obtained by capturing a road and a vehicle present on the road, a displacement amount, in the captured image, corresponding to displacement caused on the road by application of a weight of the vehicle. The storage unit stores first information indicating a relation between the weight and the displacement amount. The weight calculator calculates the weight based on the displacement amount and the first information.
Claims19
A weight measuring device comprising:
- a memory configured to store a program;
- and
- a processor configured to execute the program and control the weight measuring device to:
- detect a displacement amount by using a captured image obtained from an imaging device, the captured image being of a road and a vehicle present on the road, the displacement amount corresponding to displacement caused on the road by application of a weight of the vehicle;
- store first information indicating a relation between the weight and the displacement amount;
- store second information pertaining to vehicle weight;
- calculate, as the first information, a displacement coefficient for specifying the relation between the weight and the displacement amount based on a plurality of displacement amounts detected and the second information;
- and
- calculate the weight based on the displacement amount and the first information.
A weight measurement method comprising:
- a displacement amount detection step for detecting a displacement amount by using a captured image obtained from an imaging device, the captured image being of a road and a vehicle present on the road, the displacement amount corresponding to displacement caused on the road by application of a weight of the vehicle;
- a storing step for storing second information pertaining to vehicle weight;
- a calculating step for calculating, as the first information, a displacement coefficient for specifying the relation between the weight and the displacement amount based on a plurality of displacement amounts detected and the second information;
- and
- a weight calculation step for calculating the weight based on the displacement amount and information which is stored in a storage unit and indicates a relation between the weight and the displacement amount.
A displacement coefficient calculating device comprising:
- a memory configured to store a program;
- and
- a processor configured to execute the program and control the displacement coefficient calculating device to:
- detect a displacement amount by using a captured image obtained from an imaging device, the captured image being of a road and a vehicle present on the road, the displacement amount corresponding to displacement caused on the road by application of a weight of the vehicle;
- aggregate a plurality of displacement amounts detected by using a plurality of captured images obtained from the imaging device so as to obtain an aggregation result;
- store information pertaining to vehicle weight;
- and
- calculate a displacement coefficient for specifying a relation between the weight and the displacement amount based on the aggregation result and the information.
A displacement coefficient calculation method comprising:
- a displacement amount detection step for detecting a displacement amount by using a captured image obtained from an imaging device, the captured image being of a road and a vehicle present on the road, the displacement amount corresponding to displacement caused on the road by application of a weight of the vehicle;
- an aggregation step for aggregating a plurality of displacement amounts detected in the displacement amount detection step by using a plurality of captured images obtained from the imaging device so as to obtain an aggregation result;
- and
- a calculation step for calculating a displacement coefficient for specifying a relation between the weight and the displacement amount based on the aggregation result and information pertaining to vehicle weight stored in a weight storage unit.
Dependencies are inferred from the claim text.