Data processing: measuring – calibrating – or testing – Measurement system – Dimensional determination
Reexamination Certificate
2007-03-27
2007-03-27
Barlow, John (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system
Dimensional determination
C702S167000, C340S436000
Reexamination Certificate
active
11217353
ABSTRACT:
Provided is a road surface state estimating system for carrying out measuring along a plurality of measuring lines on a paved road surface, which improves the reliability of texture estimation of the road surface. A road surface state estimating system (1) includes a laser displacement meter (11) for measuring a distance to the road surface, a stepping motor (120A), rails (12A and12B), a ball screw (121A), and mounting members (13A and13B) for causing the laser displacement meter (11) to scan along the measuring lines, and a stepping motor (130), a rail (13), a ball screw (131), and a mounting member (11A) for moving the laser displacement meter (11) in a direction orthogonal to the measuring lines, which allows the laser displacement meter (11) to carry out measurement along the plurality of measuring lines while it is translated two-dimensionally. By determining a mean value of a plurality of texture scores such as MPDs calculated from the result of the measurement along the plurality of measuring lines, the reliability of the texture estimation is improved.
REFERENCES:
patent: 6023220 (2000-02-01), Dobler et al.
patent: 2000-131043 (2000-05-01), None
patent: 2002-303514 (2002-10-01), None
A Study of the Relationship between Surface Texture and Tire/Road Noise of Porous Asphalt Pavement, Journal of Pavement Engineering, vol. 7, pp. 1-1 to 1-6, 2002, The Japan Society of Civil Engineers (JSCE).
Predict of Tire/Road Noise from Road Surface Properties, Journal of Pavement Engineering, vol. 7, pp. 2-1 to 2-9, 2002, The Japan Society of Civil Engineers (JSCE).
Katayama Junnosuke
Kusakari Noritsugu
Masuyama Yukiei
Armstrong, Kratz, Quintos Hanson & Brooks, LLP.
Barlow John
Seikitokyukogyo Co. Ltd.
Walling Meagan S
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