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Automatic detection system and method of vehicle exterior dimension based on laser radar

A laser radar and outline dimension technology, which is applied in radio wave measurement systems, measurement devices, and optical devices, etc., can solve the problems of complicated maintenance process of light curtain sensors, reduced detection efficiency of detection stations, and easy damage of light curtain sensors. Achieve good practical value and promotion prospects, enhance readability and credibility, and reduce the time required for detection

Inactive Publication Date: 2019-05-31
ZHEJIANG UNIV OF TECH +1
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Problems solved by technology

[0005] 1) Most of the vehicle inspection stations measure the vehicle profile in an open or semi-open environment. Affected by temperature, humidity, dust and other weather factors, the light curtain sensor is easily damaged, and the maintenance process of the light curtain sensor is relatively difficult. Complicated and relatively expensive
[0006] 2) From the principle of measuring the vehicle outline by the light curtain method, there is a high probability that the measured vehicle length parameters will have large errors, which will lead to the need for re-inspection or manual measurement, which reduces the detection efficiency of the detection station , also wasting precious time

Method used

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  • Automatic detection system and method of vehicle exterior dimension based on laser radar
  • Automatic detection system and method of vehicle exterior dimension based on laser radar
  • Automatic detection system and method of vehicle exterior dimension based on laser radar

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Embodiment Construction

[0029] The realization of the technical solution of a laser radar-based automatic detection system for vehicle outline dimensions of the present invention will be described in detail below in conjunction with the embodiments.

[0030] The system consists of lidar sensors, including left lidar, right lidar, and front lidar. The left laser radar and the right laser radar are arranged at the upper left corner and the upper right corner of the entrance beam of the vehicle detection channel, and the front laser radar is arranged at the middle position of the exit beam of the vehicle detection channel. The installation and connection diagram of the system equipment is as follows: Figure 1-3 shown. The data generated by the left, right and front lidar sensors are converted into TCP / IP protocol data through the Ethernet switch and transmitted to the host computer. The upper computer calculates the length parameter, width parameter and height parameter of the inspected vehicle accor...

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Abstract

The invention provides an automatic detection system and method of a vehicle exterior dimension based on laser radar. According to the automatic detection system and method of a vehicle exterior dimension based on laser radar, laser radar with a scanning frequency of 60Hz and a visual light reflective photoelectric switch are employed to improve the measurement precision of vehicle profile parameters, a vehicle does not need to park during detection to reduce the detection time and improve the detection efficiency, a detection result is shown in the image and PDF report modes to enhance the readability and credibility of the detection result, and the detection result data is uploaded to the server for storage so as to improve the safety of the detection result data.

Description

[0001] The invention belongs to the field of automatic detection of vehicle outlines, in particular to a laser radar-based automatic detection system and method for vehicle outline dimensions. Background technique [0002] At present, in order to achieve the purpose of overloading transportation and obtaining high profits, some vehicle owners will carry out various illegal modifications and installations on their vehicles. For this reason, relevant departments need to test the external dimensions of various vehicles that exceed the limit. At present, most vehicle inspection institutions have adopted the automatic measurement system of vehicle external dimensions based on light curtains to measure the vehicle external Accurately measure dimensions. [0003] The current automatic detection system of vehicle outline size includes: invention patent (application number: 201610595422.7, name: vehicle outline size light curtain measurement device and method) using light curtain to me...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S17/88G01S17/08G01B11/24G01B11/14G01B11/04
Inventor 高飞王孖豪王晖刘浩然陈丽格汪鹏飞卢书芳陆佳炜肖刚
Owner ZHEJIANG UNIV OF TECH
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