CN203116697U - Laser ground projection type vehicle boy length active vision detection system for commercial vehicle - Google Patents

Laser ground projection type vehicle boy length active vision detection system for commercial vehicle Download PDF

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Publication number
CN203116697U
CN203116697U CN 201320181697 CN201320181697U CN203116697U CN 203116697 U CN203116697 U CN 203116697U CN 201320181697 CN201320181697 CN 201320181697 CN 201320181697 U CN201320181697 U CN 201320181697U CN 203116697 U CN203116697 U CN 203116697U
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China
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level
steel plates
camera
rectangular steel
base
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CN 201320181697
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Chinese (zh)
Inventor
徐观
邵承会
苏建
孙丽娜
陈熔
张立斌
潘洪达
戴建国
林慧英
刘玉梅
卢雪
宋健
张益瑞
崔怀于
郝照冰
刘换平
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Jilin University
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Jilin University
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Abstract

The utility model discloses a laser ground projection type vehicle boy length active vision detection system for a commercial vehicle, and aims to solve the problem of incapability of realizing image acquisition and active vision measurement in the length direction of the whole large-sized commercial vehicle. The system comprises a demarcation device assembling body base (1), a demarcation device seat (2), a demarcation device clip (3), a camera seat (4), a camera (5), a demarcation device (6) and a roller type braking test bench (7). According to a non-contact automatic measurement system, a laser projection line of a vehicle body can be automatically acquired through active machine vision, and the length of the vehicle body can be measured.

Description

Laser ground projection commercial vehicle length over ends of body active vision detection system
Technical field
The utility model relates to a kind of checkout equipment of auto industry field, and in particular, it relates to a kind of laser ground projection commercial vehicle length over ends of body active vision detection system.
Background technology
For guaranteeing the safety traffic of automobile, the car body measurement of length is one of main test item of automobile detection range.At present, the measurement of automobile dimension is mainly rested on manual meter ruler measure, efficient is low, low precision, and intensity of workers is big.Adopt and gather automobile image and then realize that the method that overall dimensions of a car is measured has solved above technical bottleneck, yet because the complex-shaped and lengthwise dimension of commerial vehicle is big, extract vehicle algorithm complexity in the car load image of camera acquisition, low, the consuming time length of measuring accuracy, the detection beat that can't adapt to detection line, therefore design the laser ground projection commercial vehicle length over ends of body detection system based on active vision, significant to the technical progress of auto industry detection range.
Summary of the invention
The utility model is at realizing that at present using the active vision technology realizes vehicle length characteristic image acquisition and then finish the present situation that high precision detects the commerial vehicle overall dimensions of a car, provide a kind of can be from vehicular sideview along commercial vehicle vehicle commander direction to vehicle body projecting laser plane, gather because the body of a motor car afterbody shines the high brightness laser line on ground after blocking, by being installed in the camera acquisition ground light line image on roof, analyze the endpoint location information in the laser rays of ground, realized that a kind of pattern distortion is less, the accuracy of measurement height, be easy to install, highly versatile, the satisfied country metering of dependable performance, the laser ground projection commercial vehicle length over ends of body active vision detection system of quality supervised department and manufacturer's car load image acquisition request.
Consult Fig. 1 to Fig. 5, for solving the problems of the technologies described above, the utility model adopts following technical scheme to be achieved.Laser provided by the utility model ground projection commercial vehicle length over ends of body active vision detection system is made up of level assembly base, level seat, level folder, camera base, video camera, level and roller brake tester.
Two front-wheels of automobile are parked between the cylinder of the roller brake tester that is fixed in ground and face contact with it, video camera and level be positioned at be parallel to the automobile transverse plane and with the tangent plane of automobile tail on and coplanar, video camera is apart from floor level 2m-8m, and the distance of level and automobile is 0.5m-5m.
Level assembly base is placed on the smooth ground, four manholes that the foot bolt that is fixed in ground passes level assembly base end face rectangular steel plates are fixedlyed connected with nut thread, two threaded holes that bolt passes two manholes in level seat bottom and the little rectangular steel plates of level assembly base top are respectively fixedlyed connected with level assembly whorl of base, level is positioned over the circular hole inside of level ogival sections, insert in the U-shaped steel plate of level seat level folder bottom, two bolts pass a pair of coaxial circular hole in level seat side and circular arc groove and two pairs of coaxial circular holes of level folder lower side respectively fixedlys connected with nut thread and clamps level, two manholes that the expansion bolt on roof passes the camera base top are respectively fixedlyed connected with nut thread, video camera is positioned over the centre of camera base two sides rectangular steel plates, bolt passes the manhole of rectangular steel plates on camera base right side from a right and left side and the threaded hole that penetrates the video camera right side is fixedlyed connected with the video camera screw thread, and another bolt is from a left side and the manhole of right rectangular steel plates of passing the camera base left side and the threaded hole that penetrates on the left of the video camera are fixedlyed connected with the video camera screw thread.
Level assembly base described in the technical scheme is made by standard steel plate and steel pipe welding, level assembly base end face is the large rectangle steel plate that the middle part is processed with manhole, four manholes of four jiaos of symmetry processing of large rectangle steel plate, steel cylindrical tube of outside welding at rectangular steel plates middle part manhole, little rectangular steel plates of steel cylindrical tube upper surface welding, a little rectangular steel plates middle part manhole of processing and two tapped through holes.
Level seat described in the technical scheme is made by the welding of standard steel plate, the bottom of level seat is rectangular steel plates, two manholes of rectangular steel plates symmetria bilateralis processing, cross section of welding, rectangular steel plates top is that U-shaped and side are the steel plate of rectangle, the circular arc groove of processing a pair of coaxial manhole in steel plate side, bottom and being the center of circle with this manhole center.
Level folder described in the technical scheme is the Ω type part that is processed by the standard steel plate, two pairs of coaxial manholes of level folder lower side symmetry processing.
Camera base described in the technical scheme is the П type part that is welded by three rectangular steel plates, and two manholes of rectangular steel plates symmetry processing at camera base top are respectively processed a manhole on the rectangular steel plates of camera base two sides.
The beneficial effects of the utility model are:
(1) the utility model adopts active vision to measure, level is from automobile side projecting laser plane, the object that detects is the characteristic curve of the laser plane high brightness that projection forms on the ground that is not blocked of hull back, because camera is installed in the roof, can make the characteristic curve that does not contain vehicle body light in the image of camera collection and have only this reflection tailstock position on ground, avoided the image of whole laser rays is handled, because the color on ground can be selected as required, the color of having avoided the part automobile is to the interference of the laser that shines vehicle body, improve the measuring accuracy of system, improved the accuracy that the automobile vehicle commander detects.
(2) critical part of the present utility model adopts standard steel section to process, and at first, standard steel section output is big, and the machining operation is few, and production cost is lower; Secondly, as the important accessory of surveying instrument, adopt standard steel section to have certain intensity, can be indeformable in long-term the use, the precision that assurance is measured can satisfy national standard to the requirement of measuring accuracy.
Description of drawings
Fig. 1 is the axonometric drawing of laser ground projection commercial vehicle length over ends of body active vision detection system;
Fig. 2 is the wiring layout of level assembly base 1 in the projection commercial vehicle length over ends of body active vision detection system of laser ground, level seat 2, level folder 3 and level 6;
Fig. 3 is the wiring layout of level seat 2 in the projection commercial vehicle length over ends of body active vision detection system of laser ground, level folder 3 and level 6;
Fig. 4 is the wiring layout of camera base 4 and video camera 5 in the projection commercial vehicle length over ends of body active vision detection system of laser ground;
Fig. 5 is the axonometric drawing of the level seat 1 of laser ground projection commercial vehicle length over ends of body active vision detection system;
Fig. 6 is the axonometric drawing of level folder 2 in the projection commercial vehicle length over ends of body active vision detection system of laser ground;
Among the figure: 1. level assembly base, 2. level seat, 3. level presss from both sides 4. camera bases, 5. video camera, 6. level, 7. roller brake tester, 8. automobile.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail:
The utility model is at realizing that at present using the active vision technology realizes vehicle length characteristic image acquisition and then finish the present situation that high precision detects the commerial vehicle overall dimensions of a car, provide a kind of can be from vehicular sideview along commercial vehicle vehicle commander direction to vehicle body projecting laser plane, gather because the body of a motor car afterbody shines the high brightness laser line on ground after blocking, by being installed in the camera acquisition ground light line image on roof, analyze the endpoint location information in the laser rays of ground, realized that a kind of pattern distortion is less, the accuracy of measurement height, be easy to install, highly versatile, the satisfied country metering of dependable performance, the laser ground projection commercial vehicle length over ends of body active vision detection system of quality supervised department and manufacturer's car load image acquisition request.
The utility model adopts active vision to measure, level is from automobile side projecting laser plane, the object that detects is the characteristic curve of the laser plane high brightness that projection forms on the ground that is not blocked of hull back, because camera is installed in the roof, can make the characteristic curve that does not contain vehicle body light in the image of camera collection and have only this reflection tailstock position on ground, avoided the image of whole laser rays is handled, because the color on ground can be selected as required, the color of having avoided the part automobile is to the interference of the laser that shines vehicle body, improved the measuring accuracy of system, improved the accuracy that the automobile vehicle commander detects, critical part of the present utility model adopts standard steel section to process, and at first, standard steel section output is big, the machining operation is few, and production cost is lower; Secondly, as the important accessory of surveying instrument, adopt standard steel section to have certain intensity, can be indeformable in long-term the use, the precision that assurance is measured can satisfy national standard to the requirement of measuring accuracy.
Consult Fig. 1 to Fig. 6, laser ground projection commercial vehicle length over ends of body active vision detection system includes level assembly base 1, level seat 2, level folder 3, camera base 4, video camera 5, level 6 and roller brake tester 7.
Two front-wheels of automobile 8 are parked between the cylinder of the HJ02-LZD-2000 type roller brake tester 7 that is fixed in ground and face contact with it, video camera 5 and level 6 be positioned at be parallel to the automobile transverse plane and with the tangent plane of automobile 8 afterbodys on and coplanar, video camera 5 is apart from floor level 2m-8m, and level 6 is 0.5m-5m with the distance of automobile 8.
Level assembly base 1 is made by standard steel plate and steel pipe welding, be placed on the smooth ground, level assembly base 1 usefulness standard steel are made, the one, in order to alleviate the weight of level assembly base 1, the 2nd, can reduce machining amount, level assembly base 1 bottom surface is the large rectangle steel plate that the middle part is processed with manhole, four manholes of four jiaos of symmetry processing of large rectangle steel plate, steel cylindrical tube of outside welding at rectangular steel plates middle part manhole, little rectangular steel plates of steel cylindrical tube upper surface welding, four manholes that a little rectangular steel plates middle part manhole of processing and two tapped through holes, the foot bolt that is fixed in ground pass level assembly base 1 bottom surface rectangular steel plates are fixedlyed connected with nut thread.
Level seat 2 is made by the welding of standard steel plate, the bottom of level seat 2 is rectangular steel plates, two manholes of rectangular steel plates symmetria bilateralis processing, cross section of welding, rectangular steel plates top is that U-shaped and side are the steel plate of rectangle, two threaded holes that the circular arc groove of processing a pair of coaxial manhole in steel plate side, bottom and being the center of circle with this manhole center, bolt pass two manholes in level seat 2 bottoms and the little rectangular steel plates in level assembly base 1 top are respectively fixedlyed connected with level assembly base 1 screw thread.
Level folder 3 is the Ω type parts that processed by the standard steel plate, level presss from both sides two pairs of coaxial manholes of 3 lower side symmetry processing, level 6 is positioned over the circular hole inside that level presss from both sides 3 tops, level presss from both sides in the U-shaped steel plate that inserts level seat 2 in 3 bottoms, and two bolts pass a pair of coaxial circular hole in level seat 2 sides and circular arc groove and level respectively and press from both sides two pairs of coaxial circular holes of 3 lower side and fixedly connected with nut thread and clamp level 6.
Camera base 4 is the П type parts that are welded by three rectangular steel plates, two manholes of rectangular steel plates symmetry processing at camera base 4 tops, two manholes that the expansion bolt on roof passes camera base 4 tops are respectively fixedlyed connected with nut thread, respectively process a manhole on the rectangular steel plates of camera base 4 two sides, video camera 5 is positioned over the centre of camera base 4 two sides rectangular steel plates, bolt passes the manhole of rectangular steel plates on camera base 4 right sides from a right and left side and the threaded hole that penetrates video camera 4 right sides is fixedlyed connected with video camera 4 screw threads, and another bolt is from a left side and the manhole of rectangular steel plates in camera base 4 left sides is passed on the right side and the threaded hole that penetrates video camera 4 left sides is fixedlyed connected with video camera 4 screw threads.
The using method of laser ground projection commercial vehicle length over ends of body active vision detection system:
Two front-wheel levels of docking at of vehicle are installed between two cylinders of ground roller brake tester 7, start roller brake tester 7 drive wheel rotations and drive vehicle body and ajust, unscrew the set bolt of level folder 3, adjust level 6 to correct position, the set bolt of locking level folder 3, open level 6 and video camera 5, level 6 is with the oblique lavatory face that projects vehicle to be checked down of optical plane, video camera 5 is gathered and is analyzed and projects ground laser rays owing to vehicle body blocks, can find the terminal point of vehicle sections in image, in conjunction with the position of roller brake tester 7 and then obtain the length dimension of vehicle, realize the accurate measurement of commercial vehicle length over ends of body.

Claims (3)

1. a laser ground projection commercial vehicle length over ends of body active vision detection system is characterized in that described laser ground projection commercial vehicle length over ends of body active vision detection system includes level assembly base (1), level seat (2), level folder (3), camera base (4), video camera (5), level (6) and roller brake tester (7);
Video camera (5) and level (6) be positioned at be parallel to the automobile transverse plane and with the tangent plane of automobile (8) afterbody on and coplanar, video camera (5) is apart from floor level 2m-8m, level (6) is 0.5m-5m with the distance of automobile (8);
Level assembly base (1) is placed on the smooth ground, four manholes that the foot bolt that is fixed in ground passes level assembly base (1) bottom surface rectangular steel plates are fixedlyed connected with nut thread, two threaded holes that bolt passes two manholes in level seat (2) bottom and the little rectangular steel plates in level assembly base (1) top are respectively fixedlyed connected with level assembly base (1) screw thread, two manholes that the expansion bolt on roof passes camera base (4) top are respectively fixedlyed connected with nut thread, video camera (5) is positioned over the centre of camera base (4) two sides rectangular steel plates, bolt is from the right side and the manhole of rectangular steel plates on camera base (4) right side is passed on a left side and the threaded hole that penetrates video camera (4) right side is fixedlyed connected with video camera (4) screw thread, and another bolt is from a left side and the manhole of rectangular steel plates in camera base (4) left side is passed on the right side and the threaded hole that penetrates video camera (4) left side is fixedlyed connected with video camera (4) screw thread.
2. according to the described laser of claim 1 ground projection commercial vehicle length over ends of body active vision detection system, it is characterized in that described level assembly base (1) made by the welding of standard steel plate and steel pipe, level assembly base (1) bottom surface is the large rectangle steel plate that the middle part is processed with manhole, four manholes of four jiaos of symmetry processing of large rectangle steel plate, steel cylindrical tube of outside welding at rectangular steel plates middle part manhole, little rectangular steel plates of steel cylindrical tube upper surface welding, a little rectangular steel plates middle part manhole of processing and two tapped through holes.
3. according to the described laser of claim 1 ground projection commercial vehicle length over ends of body active vision detection system, it is characterized in that described camera base (4) is the П type part that is welded by three rectangular steel plates, two manholes of rectangular steel plates symmetry processing at camera base (4) top are respectively processed a manhole on the rectangular steel plates of camera base (4) two sides.
CN 201320181697 2013-03-29 2013-03-29 Laser ground projection type vehicle boy length active vision detection system for commercial vehicle Expired - Fee Related CN203116697U (en)

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CN 201320181697 CN203116697U (en) 2013-03-29 2013-03-29 Laser ground projection type vehicle boy length active vision detection system for commercial vehicle

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Application Number Priority Date Filing Date Title
CN 201320181697 CN203116697U (en) 2013-03-29 2013-03-29 Laser ground projection type vehicle boy length active vision detection system for commercial vehicle

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103196377A (en) * 2013-03-29 2013-07-10 吉林大学 Laser ground projection type commercial car body length initiative visual detection system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103196377A (en) * 2013-03-29 2013-07-10 吉林大学 Laser ground projection type commercial car body length initiative visual detection system

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Granted publication date: 20130807

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