On-line measurement device for vehicle dimension

Abstract

The invention provides an on-line measurement device for a vehicle dimension. By ingeniously designing a measurement triggering starting unit, a length measurement unit, a width measurement unit, a height measurement unit, a signal acquisition unit, a portal frame, a measurement display and control console and an LED display screen, accurate measurement to the dimension of the profile of a large-sized vehicle can be realized, and the cost is low and convenience in mounting is realized. The intervals among light spots are 10 mm only, so that the phenomenon of light spot overlapping is avoided when light spots are transmitted simultaneously; the positioning is facilitated and the structural strength is ensured since the portal frame is spliced on an installation site and a U-shaped groove structure is adopted at a splicing part. Operation is convenient since the whole portal frame is fixed mechanically.

Description

technical field [0001] The invention belongs to the technical field of measurement, and in particular relates to an on-line measurement device for vehicle dimensions. Background technique [0002] In recent years, overloading of vehicles has seriously affected national property and people's life safety, endangered social and economic order, and has become a prominent social problem. At present, the detection of the size of the vehicle is often carried out by manual measurement, which has the following problems: 1. The measurement accuracy and illegal operations are difficult to control. 2. The degree of automation is low, which cannot meet the development needs of the motor vehicle management department for information management of motorized vehicles. [0003] The patent No. CN 201926427 U provides "a device for automatic inspection and measurement of vehicle dimensions". This patent is based on a laser scanner vehicle measurement device, but limited by the scanning speed,...

AI Technical Summary

Problems solved by technology

At present, when detecting the size of a vehicle, it is often carried out by manual measurement. The existing problems are: 1. The accuracy of measurement and illegal operations are difficult to control

2. The degree of automation is low, which cannot meet the development needs of the motor vehicle management department for information management of motorized vehicles

[0003] The patent No. CN 201926427 U provides "a device for automatic inspection and measurement of vehicle dimensions". This patent is based on a laser scanner vehicle measurement device, but limited by the scanning speed, it misses the Shortcomings of inaccurate testing caused by narrow height and width information;

[0004] The patent No. CN 102679889 B provides: "Measurement method and device for vehicle size". This patent is based on the vehicle size measurement system of laser radar, but it has high cost, and the scanning frequency is set according to the measurement accuracy requirements. not high disadvantage

[0005] The patent No. CN 102620662 provides "automatic vehicle size measurement system and its measurement method based on light curtain". The equipment is installed in it, which is inconvenient to install, the equipment occupies a large area, and the LED light curtain responds slowly, etc.

[0006] The document whose patent number is CN 203489844 U provides a "measurement system based on machine vision and laser light curtain vehicle outer contour size". The length measurement of this patent uses a laser light curtain, which is inconvenient to install and occupies a large area; The light curtain emits and the laser detector corresponds to receive, which is difficult to install and difficult to implement

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