作者: Paul Michael Taylor , Willem Paul Beeker , Alexander Paul Codd , William James Bradley
DOI:
关键词: Path (graph theory) 、 Data processing 、 Acoustics 、 Circumference 、 Tread 、 Simulation 、 Light source 、 Acute angle 、 Engineering
摘要: A system for measuring the depth of tread a tyre (5) on wheel (2) vehicle (1) whilst is rotating and moving along ground. camera (3) captures images rotates at least major part its circumference. Light sources (L1 to L4) are spaced longitudinally directed an acute angle path tyre, illuminate captured. The analysed by data processing apparatus (8) determined from length shadows (12, 13) in gaps(11) between blocks (10). light activated de-activated sequentially accordance with signals sensors (S1 S4) which detect presence so that when image captured portion tread, only one source tread.