详情

原文传递 INVESTIGATION OF A PAVEMENT CRACK-FILLING ROBOT.

题名：	INVESTIGATION OF A PAVEMENT CRACK-FILLING ROBOT.
关键词：	STRATEGIC-HIGHWAY-RESEARCH-PROGRAM; PAVEMENT-CRACKING; FILLING-; SEALING-; IMAGE-PROCESSING; SENSORS-; ROBOTICS-; VIDEO-TECHNOLOGY; AUTOMATION-
摘要：	This report describes a laboratory prototype designed to identify, map, track, and fill pavement cracks. Video imaging and electronic scanning equipment installed in a van is followed by a rack carrying a hot-air lance, a sealant wand, and a supply trailer. The video sensor identifies potential cracks while the depth sensor verifies actual depth. A map plotter defines the crack length, size, and depth. Using the combination of visual and depth sensing equipment, the cracks located and mapped were filled with an accuracy of better than 1 cm (0.5 in). Approximately $125 million per year is spent by states on crack-filling with labor representing 50 percent of the costs. Assuming a 4-year system life at a cost of $100,000 plus annual maintenance and operating costs of $25,000 per year, potential savings could be as much as $60,000 per unit, per year or 19 percent of costs on a national basis equal to $24 million per year.
总页数：	1992/11. pp109 (47 Fig., 7 Tab., 45 Ref., 3 App.)
报告类型：	科技报告