A vehicle super-height and super-width detection system and method based on function calibration
A detection system, vehicle technology, applied in the direction of measuring devices, instruments, using optical devices, etc.
Active Publication Date: 2018-11-02
重庆市交通工程质量检测有限公司
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[0008] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a vehicle ultra-height and ultra-width detection system based on function calibration with simple structure, strong practicability and high measurement accuracy, and it can maintain long-term operation and execute automatic online Continuous detection without stopping to avoid traffic jams
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[0045] The invention provides a vehicle super-height and super-width detection system based on function calibration, such as figure 1 with figure 2 As shown, the system includes a light-strip laser emitter 2 and an image acquisition device 3 erected above a horizontal roadway 1 , as well as a detection control processing device 4 and an alarm indicator 5 . Among them, the light strip type laser transmitter 2 is used to emit a flat laser strip obliquely downward, and the angle between the emitted flat laser strip and the horizontal plane is α, 0° figure 2 As shown, if there is no obstruction by the vehicle 6, the plane laser band can be projected onto the laser straight line formed on the horizontal road lane, namely figure 2 The straight line formed after AD is connected in the middle; but due to the obstruction of the vehicle 6, the laser line formed by the projection of the plane laser band on the horizontal road lane is divided into two sections AB and CD, and the plane l...
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The invention provides a vehicle ultra-high and ultra-wide detection system and method based on function calibration. By using a projection angle of a light band type laser transmitter in the system and a geometric position relation between the projection angle of the light band type laser transmitter and the shooting direction of an image collection device, a detection control processing device identifies horizontal displacement situation and length situation of a laser straight line section, which is formed by projecting a planar laser band to a vehicle passing through a horizontal pavement lane, in video image data through image processing; and by using a vehicle height-width measurement and calculation function model pre-established through the function calibration, a maximum height value and a maximum width value of the vehicle are measured and calculated to realize non-contact type vehicle ultra-high and ultra-wide detection. The vehicle ultra-high and ultra-wide detection system based on the function calibration, provided by the invention, has the advantages of simple structure, strong practicability, higher measurement accuracy and very good promotion and application prospect, can achieve millisecond detection speed, can realize non-stopping continuous detection and ultra-high and ultra-wide alarm indication of multiple vehicles capable of keeping long-time running and automatically performing online execution, and can avoid a problem of traffic congestion.
Description
technical field [0001] The invention relates to the technical field of transportation safety detection, in particular to a vehicle ultra-height and ultra-width detection system and method based on function calibration. Background technique [0002] With the rapid development of the national economy, my country's expressway construction and road transport scale have achieved unprecedented development, resulting in the phenomenon of overloaded vehicles is becoming more and more serious. On the one hand, over-limit transportation will shorten the service life of roads and bridges, on the other hand, it will cause changes in the shape of the vehicle body and a decrease in vehicle performance, forming a serious hidden danger to traffic safety. Therefore, vehicle overrun detection will play an important role in ensuring the smooth flow of roads, maintaining road property rights, ensuring transportation safety and the healthy development of the transportation market. [0003] At p...
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IPC IPC(8): G01B11/04
CPCG01B11/04
Inventor 蓝章礼黄涛匡恒李战姚进强
Owner 重庆市交通工程质量检测有限公司