Design And Implementation Of Data Collection And Analysis System For Highway Pavement Inspection

China's highway mileage has reached the world's first place,and in accordance with national planning,there are still a large number of construction needs.To ensure the quality of expressway construction and to detect and maintain the expressway in time is an important link to ensure the expressway to be successfully opened to traffic and to guarantee the quality of the expressway serving the national economy.The traditional method of core drilling has been unable to use the rapid development of the highway and the fact that the social and economic activities depend heavily on the transportation network.A great deal of research work has been done both at home and abroad on nondestructive testing methods.Ultrasonic nondestructive testing is the technical feasibility of the best lossless structure detection scheme,based on the actual needs,design a pavement structure detection software and hardware system of ultrasonic nondestructive testing technology based on the basis of providing support for the detection of expressway pavement quality data acquisition.Firstly,this paper studies and summarizes the ultrasonic nondestructive testing technology,discusses the technology principle and the influence of pavement structure factors for ultrasonic echo and attenuation law discussion,established the model and method of ultrasonic nondestructive detection based on pavement.Subsequently,the paper designs and prototype the hardware system of ultrasonic detection,and designs an ultrasonic handheld probe based on ARM.Combined with ZigBee wireless sensor communication technology,the wireless link uploading mode of ultrasonic probe data is realized,which makes the ultrasonic pavement detection system have flexible configuration ability and expansion ability.Finally,we design and implement the handheld device and the upper computer software program on the hardware platform,and carry on the simple function test.The research work of this paper can provide support service for highway pavement structure quality inspection and provide efficient solution for quality inspection and maintenance of expressway.Through the simple system function test,the verification system has the preliminary design goal.