Vehicle over-limit detection device and detection method

Abstract

The invention provides a vehicle over-limit detection device, including a communicating system, a power system, and a vehicle contour dimension measuring system, a vehicle weight measuring system, a control system and an electronic visual display, which can dynamically detect vehicle over-limit information. Manual intervention is not necessary during the whole measurement process. The over-limit detection device comprises a laser radar sensing device and a protective cover, no additional light source is needed, ambient light has no influences on the measurement. The protection grade is IP67, with internal integrated heater and fog correcting function, the vehicle over-limit detection device can be used under an extreme weather. The scanning width of the laser scanner is wider than lane width and the laser scanner continuously transmits the laser pulse wave at a certain angular resolution within a set of given scanning angle so as to form a two-dimensional region for scanning.

Description

technical field [0001] The invention relates to the field of vehicle detection, in particular to a vehicle overrun detection device and method. Background technique [0002] With the rapid development of the transportation industry, trucks occupy half of the country in the transportation process. In order to pursue higher interests, car owners refit to increase the cargo volume and overloaded transportation is still very common, which brings great safety hazards to road transportation. The latest national standard "Vehicles, Trailers and Vehicle Train Outline Dimensions, Axle Load and Quality Limits" (Standard No.: GB 1589-2016) has made mandatory the maximum limits for various vehicle outline dimensions. Regulation. For the sake of transportation safety, many national laws and regulations strictly prohibit the illegal modification of motor vehicles, and it is strictly forbidden to drive illegally modified motor vehicles on the road. Therefore, the detection of the vehicle...

AI Technical Summary

Problems solved by technology

[0003] The traditional measurement method of vehicle outline size is mainly parking measurement. The vehicle is parked at the specified measurement station. The station is equipped with an infrared light curtain and a through-beam photoelectric sensor to measure the length of the vehicle, and then uses the laser rangefinder on the top to measure the length of the vehicle Carry out a line scan of the vehicle to obtain the height and width of the vehicle. The advantage of this method is that the information on the length and width of the vehicle is more accurate. The disadvantage is that it is time-consuming and the measured vehicle height is inaccurate.

Modern measurement technology has been greatly improved. The "non-stop" method is used to measure, which reduces the work intensity of the staff at the monitoring station and increases the detection efficiency. The main method is to install multiple photoelectric switches at the station to control the laser emission. detector and laser receiver, and then calculate the vehicle’s outline size based on the number of photoelectric switches triggered by the vehicle and the distance. The advantage of this method is that the vehicle can be measured without parking. The quantity determines the accuracy of the measurement, suitable for indoor measurement

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