Novel subway pantograph abrasion detection method based on 2D laser measurement

• Main Authors: DING JIANMING, LAI YANG, LIU WEIWEI, FU MENGXIN, WANG JINDONG, GUO HAORAN
• Format: Patent
• Language: Chinese; English
• Published: 31.03.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PERFORMING OPERATIONS; PHYSICS; TESTING; TRANSPORTING; VEHICLES IN GENERAL

The invention discloses a novel subway pantograph abrasion detection method based on 2D laser measurement, is applied to the field of subway pantograph abrasion detection, and aims to solve the problems that in the subway operation process, due to the fact that the illumination condition of a subway tunnel is poor, the detected image effect is not ideal, an accurate detection value cannot be obtained, the subway operation speed is high, and the detection accuracy is poor. The problem of missing detection also exists; according to the invention, based on the high sampling rate of 2D laser, full-coverage profile data acquisition can be carried out on the pantograph passing by at a high speed, point cloud preprocessing, feature point identification and point cloud registration are carried out by using the obtained subway pantograph profile point cloud data to obtain the complete profile of the subway pantograph carbon contact strip, and a standard carbon contact strip profile is combined to obtain the complete p