CN218349803U - Vehicle external swing value combined detection device - Google Patents
Vehicle external swing value combined detection device Download PDFInfo
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- CN218349803U CN218349803U CN202222830764.6U CN202222830764U CN218349803U CN 218349803 U CN218349803 U CN 218349803U CN 202222830764 U CN202222830764 U CN 202222830764U CN 218349803 U CN218349803 U CN 218349803U
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Abstract
The utility model discloses a vehicle outward swinging value combination detection device, the route of traveling of vehicle are for going by the straight line and transition to in the diameter D25m circumference, and at least half a circle of traveling in the circumference, including two laser demarcation devices laid side by side, openly accept horizontal ruler strip and the camera lens of laser demarcation device transmission laser line and aim at the camera equipment of horizontal ruler strip, line perpendicular to the initial straight line direction of traveling of vehicle between the laser demarcation device, two laser demarcation devices are from top to bottom interval transmission laser line and the laser line homoenergetic of transmission just in time be covered with horizontal ruler strip, the zero scale of horizontal ruler strip is located the line of the initial straight line direction of traveling of vehicle, and go into and turn to when the vehicle to leave at horizontal ruler strip respectively and shelter from numerical value L1 and L2 the biggest, have jointly the section of jurisdiction stable in structure, discharge is big, step-down effectual, design parameter advantage such as accurate, have the vehicle outward swinging value measurement precision height, think about ingenious, easy operation.
Description
Technical Field
The utility model belongs to the technical field of the automobile inspection, concretely relates to vehicle outward swing value combination detection device.
Background
At present, the general detection means of the vehicle external swing value comprises two methods: one is a dripping method, a worker and a vehicle follow, a dripping pipe is manually controlled in the outward swinging process of the vehicle, water is dripped in real time, the maximum distance size of a projection line formed at the outermost part is measured through a watermark trace left on the ground, and the T value of the outward swinging of the vehicle is further obtained; however, because the water drops are not uniform and the line width of the mark is not easy to control in the water dropping process, the stability is poor, the precision is low, and the watermark mark formed by the water drops is greatly influenced by human factors, so that a certain deviation exists between the measurement result and the actual value.
The second method is a line drawing method, wherein a person and vehicle accompanying mode is adopted, a painting brush is manually controlled, a vehicle driving track is judged by naked eyes by a visual inspection method, the vehicle is synchronously moved, and the driving track is drawn on the ground; then measuring the maximum distance size of a projection line formed at the outermost part by using the straight ruler to obtain a T value of the vehicle outer swing; however, the influence of human factors on manual scribing is large, so that the data error is large and the accuracy is not high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a vehicle outward swing value combination detection device, measurement accuracy is high, stops the human factor and disturbs, and it is big to solve to lead to the human factor of influence when adopting the method of dripping or artifical setting-out to measure vehicle outward swing T value, problem that the measured data error is big.
Therefore, the utility model discloses the technical scheme who adopts does: a vehicle outward swing value combination detection device is characterized in that a running path of a vehicle is in a transition from straight running to a circle with a diameter of D25m and runs at least in the circle for a half circle, the device comprises two laser demarcation devices which are arranged in parallel, a transverse ruler which receives laser lines emitted by the laser demarcation devices on the front side and a camera device of which a lens is aligned with the transverse ruler, a connecting line between the laser demarcation devices is perpendicular to the initial straight running direction of the vehicle, the two laser demarcation devices emit the laser lines at intervals up and down, the emitted laser lines are all distributed on the transverse ruler, zero scales of the transverse ruler are located on the line in the initial straight running direction of the vehicle, when the vehicle enters and turns, and the tail of the vehicle swings outwards to the maximum degree, the laser lines emitted by the two laser demarcation devices sweep the protruding edge of the outward swing tail of the vehicle, maximum shielding values L1 and L2 are left on the transverse ruler respectively, the camera device is used for capturing and recording real-time data, the intersection points of the connecting lines of the two laser demarcation devices corresponding to the maximum shielding values, namely the outermost side of the vehicle outward swing value, and the transverse ruler reaches the projection point, namely the T of the transverse ruler.
As the optimization of the scheme, the laser line projector and the bottom of the transverse ruler strip are both provided with the lifting platform, so that the transverse ruler strip can receive laser lines emitted by the laser line projector, and the positions of laser emitting points of the two laser line projectors can be flexibly adjusted to be vertically spaced.
Preferably, the running speed of the vehicle is 5 km/h-10 km/h, the accuracy of the external swing T value of the vehicle is effectively ensured, and the inaccuracy of the external swing value of the vehicle caused by too fast or too slow speed is avoided.
Further preferably, the value of the vehicle outer swing T can be obtained by inputting the maximum shielding values L1 and L2 and the known position of the laser demarcation device on computer distance calculation software, the operation is simple, the convenience is realized, the value of T can be quickly obtained, and the interference of human factors is effectively avoided.
The utility model has the advantages that:
(1) Compared with a method for displaying a vehicle driving track by manually dripping water in real time and synchronously drawing the driving track by manually drawing a painting brush, the method has the advantages that errors caused by manual operation are effectively avoided, the measurement accuracy of the vehicle outer swing T value is effectively improved, the vehicle outer swing T value is calculated according to the maximum value of the laser line of the laser demarcation device emitted at the transverse ruler strip and shielded by the protruding edge of the tail part of the outer side of the vehicle according to the linear propagation principle of light, and the conception is ingenious.
(2) The installation is put simply fast, and the light through camera equipment seizure laser demarcation appearance fast changes the point on horizontal chi strip, catches numerical value L1 and L2 that shelters from at the utmost fast, and full automation operates, effectively avoids artificial factor to influence, easy operation, and the measurement is quick.
In conclusion, the method has the advantages of high precision of measuring the T value of the outer swing of the vehicle, ingenious design, simple operation and the like.
Drawings
Fig. 1 is a schematic diagram of the application of the present invention.
Detailed Description
The invention will be further described by way of examples with reference to the accompanying drawings:
as shown in FIG. 1, a vehicle camber value combination detecting device, a traveling path of a vehicle 3 is transited from straight traveling to within a circle with a diameter of D25m, and the vehicle travels at least half a turn within the circle, and a traveling speed of the vehicle 3 is preferably 5km/h to 10km/h.
The system consists of two laser demarcation devices 1 which are arranged in parallel, a transverse ruler strip 2 of which the front surface receives laser rays emitted by the laser demarcation devices 1, and a camera 4 of which the lens is aligned with the transverse ruler strip 2.
The line between the laser demarcation device 1 is perpendicular to the initial straight line direction of travel of vehicle 3, and two laser demarcation devices 1 interval transmission laser lines and the laser line homoenergetic of transmission just in time be covered with horizontal chi strip 2 from top to bottom.
The zero graduation of the transverse blade 2 is located on the line of the initial straight travel direction of the vehicle 3.
The bottoms of the laser demarcation device 1 and the transverse ruler strip 2 are provided with lifting platforms.
When the vehicle 3 drives in and turns to, the vehicle tail part swings outwards to the maximum extent, the laser lines emitted by the two laser line projectors 1 sweep the protruding edge of the swinging tail part of the vehicle 3, and maximum shielding values L1 and L2 are left on the transverse ruler strips 2 respectively.
The camera 4 is used for capturing and recording real-time data, two laser line projectors 1 respectively correspond to a connection intersection point B of the maximum shielding numerical value, namely an arrival point of the outermost part when the vehicle 3 swings outwards, and the projection of the arrival point corresponds to the numerical value on the transverse ruler strip 2, namely the vehicle swing outwards T value.
The value of the vehicle outer swing T can be obtained by inputting the maximum shielding numerical values L1 and L2 and the known position of the laser demarcation device 1 on the computer distance calculation software.
The specific implementation steps are as follows:
according to the height range of the maximum protruding point of the outer side tail part of the detected vehicle, the height range of the laser demarcation device 1 is adjusted through the lifting platform and is used as a positioning point for measuring the swing value; the transverse ruler strip 2 can be adjusted by the lifting platform to receive the laser line of the laser line projector 1 from the front side.
The laser line projector 1 is started to respectively project light rays on the transverse ruler strips 2, two spaced lines are in a strip state and transversely cover the surface of the whole transverse ruler strip 2, and the light rays are clearly visible through the lens of the camera 4.
When the vehicle 3 is cut into and turns around from a circle D25m when the vehicle is driven in a straight line, the tail part of the vehicle 3 swings outwards, and the tail part of the swing outwards shields part of light rays projected on the transverse ruler strip 2 by the laser demarcation device 1.
Due to the principle of linear light propagation, the outer pendulum of the vehicle 3 is increased, the light ray shielding the laser demarcation device 1 is gradually increased on the transverse ruler strip 2, and meanwhile, the camera 4 captures the change point of the light ray on the transverse ruler strip 2 in real time;
catch laser demarcation device 1 and throw and appear maximum sheltering from position L1 value and L2 value at the ruler.
And (3) sorting the numerical values, taking the coordinate points of the two laser demarcation devices 1 as input data, connecting the corresponding points of the L1 and L2 extreme values formed on the transverse ruler strip 2 by using upper computer distance calculation software under the condition that the positions of the two laser demarcation devices 1 are known, and quickly obtaining the T value of the vehicle outer swing.
Claims (4)
1. A vehicle yaw value combination detection device, a travel path of a vehicle (3) is changed from straight travel to a circle with a diameter of D25m, and the vehicle travels at least half a turn in the circle, characterized in that: the vehicle-mounted laser line shooting device comprises two laser line shooting instruments (1) which are arranged in parallel, a transverse ruler strip (2) of which the front surface receives laser lines emitted by the laser line shooting instruments (1), and a camera device (4) of which the lens is aligned with the transverse ruler strip (2), wherein a connecting line between the laser line shooting instruments (1) is perpendicular to the initial straight running direction of a vehicle (3), the two laser line shooting instruments (1) emit the laser lines at intervals up and down, the emitted laser lines can be just fully distributed on the transverse ruler strip (2), zero scales of the transverse ruler strip (2) are located on the line of the initial straight running direction of the vehicle (3), when the vehicle (3) runs in and turns, the tail part of the vehicle swings outwards to the maximum extent, the laser lines emitted by the two laser line shooting instruments (1) sweep the protruding edge of the outer swing tail part of the vehicle (3), maximum shielding values L1 and L2 are respectively left on the transverse ruler strip (2), the camera device (4) is used for capturing and recording data in real time, the two laser line shooting instruments (1) respectively correspond to the maximum shielding value of the intersection point (B) of the outer swing of the vehicle, and the transverse ruler strip (2), and the outermost value of the projection point of the vehicle (2) is the projection point of the transverse ruler strip (2, and the projection point.
2. A vehicle yaw value combination detection apparatus according to claim 1, characterized in that: the bottoms of the laser demarcation device (1) and the transverse ruler strip (2) are provided with lifting platforms.
3. A vehicle yaw value combination detection apparatus according to claim 1, characterized in that: the running speed of the vehicle (3) is 5 km/h-10 km/h.
4. A vehicle yaw value combination detection apparatus according to claim 1, characterized in that: the vehicle outward swing T value can be obtained by inputting maximum shielding numerical values L1 and L2 and the known position of the laser demarcation device (1) on computer distance calculation software.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222830764.6U CN218349803U (en) | 2022-10-26 | 2022-10-26 | Vehicle external swing value combined detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222830764.6U CN218349803U (en) | 2022-10-26 | 2022-10-26 | Vehicle external swing value combined detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218349803U true CN218349803U (en) | 2023-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222830764.6U Active CN218349803U (en) | 2022-10-26 | 2022-10-26 | Vehicle external swing value combined detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218349803U (en) |
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2022
- 2022-10-26 CN CN202222830764.6U patent/CN218349803U/en active Active
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