Scanning-type intelligent detection method and device for road traffic vehicles

Abstract

The invention belongs to the technical field of intelligent traffic detection, and relates to a scanning-type intelligent detection method and device for road traffic vehicles. The method includes the steps that dynamic data scanning collecting of the shapes of the traveling vehicles is firstly achieved through an infrared laser scanning raster installed on a road, and then contour lines of the passing vehicles are obtained with the image contour line extracting technology, so that the functions of vehicle shape detection, vehicle flow counting, detection data transmission and the like are achieved. The body structure of the related device comprises the infrared laser scanning raster, an intelligent detection terminal, an infrared laser apparatus array, an infrared receiver array and a steel frame structure. Related technology principles include the infrared laser scanning raster technology, the intelligent detection terminal development technology and the image contour line extracting technology. The method is novel in design, easy and convenient to operate, accurate in detection and high in real-time performance; the use device is simple in structure, low in cost, long in service life, safe and reliable.

Description

Technical field: [0001] The invention belongs to the technical field of intelligent traffic detection, and designs a vehicle detection method based on the "dynamic scanning principle", in particular a road traffic vehicle scanning intelligent detection method and device, which can realize the intelligent detection of traffic flow and vehicle shape in road traffic. detection. Background technique: [0002] With the rapid development of my country's society and economy and the acceleration of urbanization and automation, the number of motor vehicles and road traffic in my country has increased sharply, urban road traffic congestion has increased, traffic accidents have increased, and it has also caused huge economic losses. This is one of the main problems facing the development of cities all over the world. Both developed and developing countries are suffering from deteriorating traffic problems. The urban traffic problem has also become an important factor that plagues the d...

AI Technical Summary

Problems solved by technology

Among them, air duct detection is a contact detection method, which can only obtain a single vehicle information, and the method is cumbersome and has a short lifespan. It has been replaced by technologies such as magnetic induction detection; Influenced by strength and stability, it has been widely used in traffic statistics, traffic control and guidance in practice. The coils all sense the metal car body and cause misjudgment, and after the induction coil is buried, the maintainability of the road surface is reduced; in the method based on wave frequency detection, since the electromagnetic wave will attenuate with the propagation distance during the propagation process, the echo signal is very Weak, almost submerged by noise, and there are still problems such as misjudgment, occlusion, complicated installation, inconvenient maintenance, and insufficient traffic flow information in practical applications; traffic flow detection technology based on video images has broad application prospects, and has great impact on urban road construction , construction of national roads and expressways, construction of tunnels and bridges, basic theory and control of traffic flow, etc. all play a positive role in supporting them.

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