CN211954050U - Dynamic tire pattern depth detection device based on CAN bus measuring light curtain - Google Patents
Dynamic tire pattern depth detection device based on CAN bus measuring light curtain Download PDFInfo
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- CN211954050U CN211954050U CN202020800279.2U CN202020800279U CN211954050U CN 211954050 U CN211954050 U CN 211954050U CN 202020800279 U CN202020800279 U CN 202020800279U CN 211954050 U CN211954050 U CN 211954050U
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- 238000001514 detection method Methods 0.000 title claims description 19
- 238000005259 measurement Methods 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000012795 verification Methods 0.000 abstract description 2
- 230000005693 optoelectronics Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
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- 238000012545 processing Methods 0.000 description 1
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Abstract
The utility model relates to a dynamic verification tire tread degree of depth device based on CAN bus measurement light curtain, it belongs to tire tread measurement field. Including the measurement light curtain based on the CAN bus, the measurement light curtain includes transmitting terminal and receiving terminal, and the both sides of measurement light curtain all are equipped with photoelectric switch, the transmitting terminal and the receiving terminal one end of measuring the light curtain all are equipped with the measuring module device. Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a 3D line laser measuring apparatu and the organic accurate combination of measurement light curtain, through the photoelectric switch control measurement begin with the end overall process, at the vehicle in-process of marcing, measure the light curtain and can trail the tire position in real time, accomplish the measurement of shooing of tire decorative pattern degree of depth size at once when the laser line coincidence of tire axle center and line laser transmission, avoided the tire axle center in marcing and the laser line coincidence of line laser transmission to shoot the error that causes when measuring.
Description
Technical Field
The utility model relates to a dynamic verification tire tread degree of depth device based on CAN bus measurement light curtain, it belongs to tire tread measurement field.
Background
The pattern depth on the crown pattern of the tire of a passenger vehicle or a trailer is required to be more than or equal to 1.6mm and the pattern depth on the crown pattern of the tire of a motorcycle is required to be more than or equal to 0.8mm according to the national standard GB7258-2017 motor vehicle operation safety technical conditions; the tread depth of the crown of the other motor vehicle steering wheel is more than or equal to 3.2mm, and the tread depth of the crown of the other tire is more than or equal to 1.6 mm. If the pattern of the tire is too shallow, the water storage and drainage capacity of the tire is affected, and a harmful 'hydroplaning phenomenon' is easily generated (the 'hydroplaning phenomenon' is that when the tire rolls on a road surface containing a hydropneumatic layer, the hydropneumatic layer is squeezed, so that the water in the front part of a contact area between the tire and the road surface generates dynamic pressure which is proportional to the square of the speed due to inertia). The dynamic pressure can reduce the direct contact surface of the tire and the road surface along with the increase of the rotation speed of the tire, when the rotation speed reaches a certain degree, the lift force of the dynamic pressure is balanced with the vertical downward load, at the moment, the tire completely loses the contact with the road surface and floats on a water film, so that the defect that the smooth tread tire is easy to slip is highlighted, and the damage of the too shallow pattern of the tire is very huge.
The Chinese utility model discloses a china's utility model announces a car tire pattern depth detecting system of No. CN207231417U, including the pattern depth detection device who is used for detecting the tire pattern depth, the camera device that is used for license plate discernment, the intelligent object who is used for calculating tire pattern depth and discerning license plate information, and the storage device who is used for storing tire pattern depth and license plate information; the intelligent module is provided with a receiving interface for receiving the data of the pattern depth detection device and the camera device; the intelligent module also comprises a data output interface used for connecting the storage device. The detection principle is that when a vehicle travels to a detection area at a speed less than 3km/h, the license plate camera shooting and recognizing device 6 automatically scans the license plate of the vehicle and uploads the license plate to the intelligent module 7, but the detection technology has the defects that the position of the tire cannot be tracked in real time, so that the information received when the vehicle enters the detection area is slow, the measurement error is large, and in the detection process, the traveling speed of the vehicle is limited to a certain extent, so that a device for dynamically detecting the tire pattern depth is urgently needed in the market.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the not enough of existence among the above-mentioned prior art, provide a dynamic detection tire decorative pattern degree of depth device based on CAN bus measurement light curtain.
The utility model provides an above-mentioned technical problem's technical scheme as follows:
the utility model provides a dynamic detection tire tread degree of depth device based on CAN bus measurement light curtain, includes the measurement light curtain based on the CAN bus, and the measurement light curtain includes transmitting terminal and receiving terminal, and the both sides of measuring the light curtain all are equipped with photoelectric switch, the transmitting terminal and the receiving terminal one end of measuring the light curtain all are equipped with the measuring module device.
Preferably, the measuring module device comprises a measuring hole, and a 3D line laser measuring instrument is arranged below the measuring hole.
Preferably, the 3D line laser measuring instrument comprises an industrial camera and a line laser, the industrial camera being located at one side of the measuring hole, the line laser being located at the other side of the measuring hole.
Preferably, the photoelectric switches include a first photoelectric switch on the left side and a second photoelectric switch on the right side.
Preferably, the number of measuring module devices is at least two.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a 3D line laser measuring apparatu and the organic accurate combination of measurement light curtain, through the photoelectric switch control measurement begin with the end overall process, in the vehicle course of marcing, the measurement light curtain can trail the tire position in real time, accomplish the measurement of shooing of tire decorative pattern degree of depth size at once when the laser line coincidence of tire axle center and line laser transmission, the error that causes when having avoided the tire axle center in marcing and the laser line coincidence of line laser transmission to shoot the measurement, there is not strict restriction to the size of vehicle tire size and speed of traveling in addition in the testing process, consequently, detection efficiency and speed have been improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a cross-sectional view of the present invention.
Fig. 3 is an enlarged view of the measurement module apparatus of fig. 2.
In the figure, 1, a light curtain is measured; 11. a transmitting end; 12. a receiving end; 2. a photoelectric switch; 21. a first photoelectric switch; 22. a second photoelectric switch; 3. a measurement module arrangement; 31. measuring a hole; 32. 3D line laser measuring instrument; 321. an industrial camera; 322. a line laser; 4. a tire.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1 to 3, a dynamic detection tire tread degree of depth device based on CAN bus measurement light curtain, includes measurement light curtain 1 based on the CAN bus, and measurement light curtain 1 includes transmitting terminal 11 and receiving terminal 12, and the both sides of measuring light curtain 1 all are equipped with photoelectric switch 2, the transmitting terminal 11 and the receiving terminal 12 one end of measuring light curtain 1 all are equipped with measuring module device 3.
The measuring module device 3 comprises a measuring hole 31, and a 3D line laser measuring instrument 32 is arranged below the measuring hole 31.
The 3D line laser measuring instrument 32 includes an industrial camera 321 and a line laser 322, the industrial camera 321 is located at one side of the measuring hole 31, and the line laser 322 is located at the other side of the measuring hole 31.
The opto-electronic switch 2 comprises a first opto-electronic switch 21 on the left and a second opto-electronic switch 22 on the right.
The number of the measuring module devices 3 is at least two.
The utility model discloses a theory of operation:
when the vehicle travels to the first photoelectric switch 21 along the traveling direction, the system enters a measuring state, after the tire 4 on the first axis of the vehicle enters the area of the measuring light curtain 1, the system calculates the diameter of the tire 4 according to the condition that the tire 4 shields the measuring light curtain 1, then the system calculates the position point of the tire 4 on the measuring light curtain 1 when the axis of the tire 4 is superposed with the laser line emitted by the line laser 322 according to the diameter of the tire 4, when the tire 4 travels to the position point, the computer controls the industrial camera 321 of the 3D line laser measuring instrument 32 to shoot for measurement immediately, and sends the shot outline image information of the tire 4 to the computer for analysis processing, and calculates the pattern depth dimension of the tire 4 on the axis. And after the first shaft tire 4 is measured, the second shaft tire 4 is measured, when the tire 4 of the last shaft of the vehicle passes through the second photoelectric switch 22, all the tires 4 of the vehicle are detected, and the system uploads the detection data of the pattern depth dimension of each shaft tire 4 to the upper computer and prints the test result.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (5)
1. The utility model provides a dynamic detection tire tread degree of depth device based on CAN bus measurement light curtain which characterized in that: including measuring light curtain (1) based on the CAN bus, measuring light curtain (1) includes transmitting terminal (11) and receiving terminal (12), and the both sides of measuring light curtain (1) all are equipped with photoelectric switch (2), transmitting terminal (11) and receiving terminal (12) one end of measuring light curtain (1) all are equipped with measuring module device (3).
2. The CAN bus based dynamic detection tire tread depth device of measuring light curtain of claim 1, wherein: the measuring module device (3) comprises a measuring hole (31), and a 3D line laser measuring instrument (32) is arranged below the measuring hole (31).
3. The CAN bus based dynamic detection tire tread depth device of measuring light curtain of claim 2, wherein: the 3D line laser measuring instrument (32) comprises an industrial camera (321) and a line laser (322), wherein the industrial camera (321) is located on one side of the measuring hole (31), and the line laser (322) is located on the other side of the measuring hole (31).
4. The CAN bus based dynamic detection tire tread depth device of measuring light curtain of claim 1, wherein: the photoelectric switch (2) comprises a first photoelectric switch (21) on the left side and a second photoelectric switch (22) on the right side.
5. The CAN bus based dynamic detection tire tread depth device of measuring light curtain of claim 1, wherein: the number of the measuring module devices (3) is at least two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020800279.2U CN211954050U (en) | 2020-05-14 | 2020-05-14 | Dynamic tire pattern depth detection device based on CAN bus measuring light curtain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020800279.2U CN211954050U (en) | 2020-05-14 | 2020-05-14 | Dynamic tire pattern depth detection device based on CAN bus measuring light curtain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211954050U true CN211954050U (en) | 2020-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020800279.2U Active CN211954050U (en) | 2020-05-14 | 2020-05-14 | Dynamic tire pattern depth detection device based on CAN bus measuring light curtain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211954050U (en) |
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2020
- 2020-05-14 CN CN202020800279.2U patent/CN211954050U/en active Active
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