CN204881523U - Vehicle width detection device based on parallel laser dot matrix - Google Patents
Vehicle width detection device based on parallel laser dot matrix Download PDFInfo
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- CN204881523U CN204881523U CN201520313930.2U CN201520313930U CN204881523U CN 204881523 U CN204881523 U CN 204881523U CN 201520313930 U CN201520313930 U CN 201520313930U CN 204881523 U CN204881523 U CN 204881523U
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Abstract
The utility model discloses a vehicle width detection device based on parallel laser dot matrix relates to vehicle test technical field, including portal frame, parallel light laser emitter, computer and with the image device of computer link, parallel light laser emitter lies in transmission perpendicular to the ground's on the crossbeam of portal frame laser dot matrix, the laser dot matrix of parallel light laser emitter transmission is greater than the width of being surveyed the vehicle at the width of the projection perpendicular to driving orientation on ground, image device includes left image device and right image device, and left image device and right image device fix on two side poles of the left and right sides of portal frame with a take the altitude respectively, and left image device or right image device's formation of image scope transversely covers the projection of laser dot matrix on left side ground or right side ground. The utility model discloses detection efficiency is high, the testing result is accurate, detect precision height, the good reproducibility, not influenced by the human factor, and easy operation standardizes inspection personnel's inspection action, improvement inspection personnel's work efficiency.
Description
Technical field
The utility model relates to technical field of vehicle detection.
Background technology
According to the regulation of relevant national standard, " vehicle overall dimension detection " is as the essential items for inspection of motor vehicle registration registration inspection, there is the shortcoming that efficiency is low, backward in technique, testing result is affected by human factors in manual measurement vehicle overall dimension, adopts efficient, advanced detection means to be the active demand of vehicle external profile size detection; Simultaneously China is medium-sized and to exceed the phenomenon of national regulations with Truck repacking contour dimension extremely general, and increase the volume of goods transported after repacking and seriously overload and become pernicious traffic hazard main cause, advanced detection means can deter illegal repacking behavior greatly.
Existing vehicle external profile size detecting device comprises portal frame, imaging device and computing machine, by multi-section imaging device as camera is arranged on the diverse location of portal frame, at vehicle through out-of-date, the picture of shooting vehicle, the auto graph of acquisition is sent to computing machine, on computers by image procossing as the process such as image enhaucament, rim detection identifies automobile profile according to the change of the light and shade of image, thus converse the actual contour dimension of automobile.Such an approach achieves the Aulomatizeted Detect of contour dimension, detection efficiency is high.But, the image that this method obtains is as the image under sunshine at natural light, when detecting vehicle width, sunshine irradiates tested vehicle at a certain angle, tested vehicle forms projection on ground, and computing machine is when carrying out image procossing, and the light and shade change affecting its picture by above-mentioned projection might not be actual automobile profile, thus cause certain error, have impact on the accuracy that vehicle width detects.In prior art, mostly adopt the quantity increasing camera to reduce this error, this adds testing cost undoubtedly, reduces detection efficiency, and its accuracy detected is also unsatisfactory.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of vehicle width pick-up unit based on parallel laser dot matrix, launch the parallel laser light beam perpendicular to ground, thus make unique orthogonal projection ground being formed reflection vehicle both sides of the edge form, improve vehicle width accuracy in detection, improve detection efficiency high, reduce testing cost.
For solving the problems of the technologies described above, technical solution adopted in the utility model is:
A kind of vehicle width pick-up unit based on parallel laser dot matrix, the imaging device comprising portal frame, directional light generating laser, computing machine and be connected with computing machine, the crossbeam that described directional light generating laser is positioned at portal frame is launched the laser dot-matrix perpendicular to ground, the projection on ground of the laser dot-matrix of described directional light laser transmitter projects is greater than the width of tested vehicle perpendicular to the width of direction of traffic; Described imaging device comprises left imaging device and right imaging device, described left imaging device and right imaging device are fixed on two, the left and right lateral column of portal frame with certain altitude respectively, and the areas imaging of described left imaging device or right imaging device laterally covers the projection of laser dot-matrix at ground, left side or right ground.
Further technical scheme, described imaging device is industrial camera.
Further technical scheme, described directional light generating laser comprises at least one row's generating laser.
Further technical scheme, the height of described imaging device is 2-2.8m.
Further technical scheme, the projection of described directional light generating laser on ground is 3-3.5m perpendicular to the width of direction of traffic.
Further technical scheme, the height of described directional light generating laser is at least 4.5m.
The beneficial effect adopting technique scheme to produce is: the utility model launches the parallel laser light beam perpendicular to ground when detecting, thus make unique orthogonal projection ground being formed reflection vehicle both sides of the edge form, ensure the accuracy when carrying out image procossing identification automobile profile, avoid the projection error that the available lights such as sunshine cause floor projection form, thus ensure the accuracy that vehicle width detects; The orthogonal projection formed and the visual angle of camera have nothing to do, and without the need to adopting multi-section camera, with low cost, detection efficiency is high; The robotization that the utility model achieves vehicle external profile size detects fast, accuracy of detection is high, reproducible, be not affected by human factors, simple to operate, the specification inspection behavior of reviewer, improve the work efficiency of reviewer, for law enfrocement official provides effective law enforcement instrument, embody testing process fairness and the transparency.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
In the accompanying drawings: 1, portal frame, 2, imaging device, 3, crossbeam, 4, lateral column, 5, laser dot-matrix.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, a kind of vehicle width pick-up unit based on parallel laser dot matrix, the imaging device 2 comprising portal frame 1, directional light generating laser, computing machine and be connected with computing machine, directional light generating laser comprises row's generating laser to launch the laser dot-matrix 5 perpendicular to ground, generating laser is positioned on the crossbeam 3 of portal frame 1, and the projection of laser dot-matrix 5 on ground is greater than the width of tested vehicle perpendicular to the width of direction of traffic.Imaging device 2 industrial camera, comprise left imaging device and right imaging device, left imaging device and right imaging device are fixed on two, the left and right lateral column 4 of portal frame 1 with certain altitude respectively, and the areas imaging of left imaging device or right imaging device laterally covers the projection of laser dot-matrix 5 at ground, left side or right ground.The height of imaging device 2 is 2-2.8m.The projection of directional light generating laser on ground is 3-3.5m perpendicular to the width of direction of traffic.The height of directional light generating laser is at least 4.5m.
Cleaning Principle of the present utility model is: before detecting, setting height(from bottom) and the setting angle of industrial camera are debugged, directional light laser transmitter projects is perpendicular to the parallel laser on ground, when tested vehicle is by laser dot-matrix 5 position, ground laser spots projection is blocked generation light and shade by car body and is changed, form the orthogonal projection of reflection vehicle both sides of the edge form, the image of orthogonal projection is obtained by imaging device 2, pass through image enhaucament, the image procossing such as rim detection identify the floor projection point at the most outstanding position, outside about car body respectively, thus identify the width ratio of the non-shield portions of car body in image, according to setting height(from bottom) and the setting angle of industrial camera, and the width of the laser projection point of directional light generating laser on ground, converse actual vehicle width, by testing result display on computers.
The utility model have employed the laser dot-matrix 5 that vertical ground is launched, form unique orthogonal projection of reflection vehicle both sides of the edge form on the ground, avoided the projection error (reducing this projection error without the need to adopting multi-section camera) that lower car body space-to-ground projection form causes, unique orthogonal projection that the utility model is formed and camera perspective have nothing to do; When headstock or the tailstock pass through, ground orthogonal projection can reflect again vehicle protrusion situation end to end.
Claims (6)
1. the vehicle width pick-up unit based on parallel laser dot matrix, it is characterized in that the imaging device (2) comprising portal frame (1), directional light generating laser, computing machine and be connected with computing machine, described directional light generating laser is positioned at the upper laser dot-matrix (5) launched perpendicular to ground of crossbeam (3) of portal frame (1), and the projection on ground of the laser dot-matrix (5) of described directional light laser transmitter projects is greater than the width of tested vehicle perpendicular to the width of direction of traffic; Described imaging device (2) comprises left imaging device and right imaging device, described left imaging device and right imaging device are fixed on two, the left and right lateral column (4) of portal frame (1) with certain altitude respectively, and the areas imaging of described left imaging device or right imaging device laterally covers the projection of laser dot-matrix (5) at ground, left side or right ground.
2. a kind of vehicle width pick-up unit based on parallel laser dot matrix according to claim 1, is characterized in that described imaging device (2) is industrial camera.
3. a kind of vehicle width pick-up unit based on parallel laser dot matrix according to claim 1, is characterized in that described directional light generating laser comprises at least one row's generating laser.
4. a kind of vehicle width pick-up unit based on parallel laser dot matrix according to claim 1, is characterized in that the height of described imaging device (2) is 2-2.8m.
5. a kind of vehicle width pick-up unit based on parallel laser dot matrix according to claim 1, is characterized in that the projection of described directional light generating laser on ground is 3-3.5m perpendicular to the width of direction of traffic.
6. a kind of vehicle width pick-up unit based on parallel laser dot matrix according to claim 1, is characterized in that the height of described directional light generating laser is at least 4.5m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520313930.2U CN204881523U (en) | 2015-05-15 | 2015-05-15 | Vehicle width detection device based on parallel laser dot matrix |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520313930.2U CN204881523U (en) | 2015-05-15 | 2015-05-15 | Vehicle width detection device based on parallel laser dot matrix |
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| Publication Number | Publication Date |
|---|---|
| CN204881523U true CN204881523U (en) | 2015-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520313930.2U Expired - Fee Related CN204881523U (en) | 2015-05-15 | 2015-05-15 | Vehicle width detection device based on parallel laser dot matrix |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110470232A (en) * | 2019-09-04 | 2019-11-19 | 合肥市极点科技有限公司 | A kind of method, apparatus, measuring system and electronic equipment measuring difference in height |
-
2015
- 2015-05-15 CN CN201520313930.2U patent/CN204881523U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110470232A (en) * | 2019-09-04 | 2019-11-19 | 合肥市极点科技有限公司 | A kind of method, apparatus, measuring system and electronic equipment measuring difference in height |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 |