CN202547956U - Chassis four-wheel aligner - Google Patents
Chassis four-wheel aligner Download PDFInfo
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- CN202547956U CN202547956U CN2011205669451U CN201120566945U CN202547956U CN 202547956 U CN202547956 U CN 202547956U CN 2011205669451 U CN2011205669451 U CN 2011205669451U CN 201120566945 U CN201120566945 U CN 201120566945U CN 202547956 U CN202547956 U CN 202547956U
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Abstract
The utility model discloses a chassis four-wheel aligner which comprises four target wheel clamp combined bodies, two camera devices, a high precision real time image collector, a pillar body, four target hooks and a control host, wherein both sides at the upper part of the pillar body are respectively provided with the camera devices; both sides at the lower part of the pillar body are respectively provided with the target hooks; the target wheel clamp combined bodies are arranged on the target hooks; the high-precision real time image collector and the control host are respectively arranged in the pillar body; and the high precision real time image collector is respectively connected with the camera devices and the control host so as to exchange data in two ways. The chassis four-wheel aligner adopts a full-digital charge-coupled device (CCD) image technology and high-precision infrared transmission, so that the precision of a collected image is higher, the anti-interference capacity is stronger, space is saved, and the applications are wide.
Description
Technical field
The utility model relates to the vehicle detection technical field, particularly a kind of chassis four-wheel position finder.
Background technology
The development in recent years of domestic automobile reconditioning facility industry is very fast, has progressively formed the leading enterprise of some industries.Some knowledgeable people have invested the foreign market with the development eye of enterprise and industry; Mode through commission merchant or self-built representative office is developed overseas business; This trend meets the China status in world economy situation at present, is that following vapour is protected the fast-developing main growth pattern of equipment industry.Along with the development like a raging fire of Chinese automobile market, the prospect of Chinese automobile aftermarket also gets most of the attention.Wherein the maximum especially beneficiary in market is maintained in auto repair.And because family's car purchase proportion is increasingly high, and the car owner is more and more stronger to Motor Maintenance consciousness, domestic automobile detects, the demand of maintenance facility is also increasing.
But at present vapour is protected the technological domestic of equipment and is also lagged far behind the international competition adversary, and mainly is the foreign imitation technology, protects one of the major product four-wheel position finder of equipment as vapour, the huge market demand, and product technology difficulty height, added value is big.Along with pay attention to day by day and the management regulation of country to traffic safety, the market demand of four-wheel position finder equipment will expand rapidly under the guiding of national policy.
The detection mode of common in the market four-wheel position finder mainly contains: laser, PSD, CCD and 3D.Its characteristics are distinguished as follows:
One, laser:
Laser is a kind of new type light source, and it is that light source applications as measuring system is in four-wheel position finder, because laser all is with vertical straight line output; Therefore determined that the measurement range of laser product Shu Du is narrower; Uncompensated and need the manual calculation thrust line, its measuring accuracy is low, and detection speed is slow.There is personal error in relation because of luminous point and scale, and laser is easy to receive external interference, and it is unsatisfactory in four-wheel position finder therefore to do light source applications with laser.
As everyone knows, laser has certain injury to human eyesight, so safety certifications such as UL, CE are difficult to pass through, American-European Japan eliminates already, just in the also local existence of China and part country in Southeast Asia.
Two, PSD:
PSD claims photoelectrical position sensor again.We know; Does not use nearly all foreign four-wheel location, and the machine that has only Korea S is in a large amount of uses, and its principle of work is: when a certain position of the sensitive surface of PSD exists under the situation of illumination; Its output current has respective change; Thereby can obtain the illumination position, it is a kind of simulation (the DC/AC conversion has loss of data) device.Though through using some special technique can avoid these problems to a certain extent, it can only be measured single luminous point and can not change from the principle limit.PSD can only use in industrial environment, and the temperature drift of PSD is serious and receive the influence of ambient light in other words.Temperature variation can make the zero-bit of its output change tens millivolts, and the influence of light makes system's value unstable, and these two are superimposed, and just make PSD lose measuring accuracy and stabilization of equipment performance, the killer that this point is PSD (indeterminacy, poor repeatability).
Three, CCD:
CCD is a kind of semiconductor digital element device (claiming the photoelectric coupling device again), and it is divided into two kinds of line array CCD and area array CCDs.It is the novel semi-conductor integrated optoelectronic device that grows up early 1970s; It is integrated thousands of independently photosensitive separately units on a silicon face, when illumination is mapped on the photosurface, receives the photosensitive unit of light with the gathered light electronics; Mode through displacement; With light quantity output, produce the information of optical position and light intensity, so CCD have characteristics such as measuring accuracy height (in 0.05 degree), no temperature coefficient, long service life.
Use CCD that good adaptive capacity to environment is arranged.Other all technology all have the restriction in the various uses, and such as can not using, can not have strong-electromagnetic field, temperature that too big variation or the like can not be arranged in the complicated place of light, and these all be the typical environment in the common workshop that repairs.Those can not open the door, can not window, morning pleasantly cool data measured with noon the sky thermal measurement just different, the nigh requirement of big motor can not be arranged, for the four-wheel location, be to have a few too really.Therefore the four-wheel position finder of American-European countries's production all adopts the CCD technology, and like battlebus, Pepsi despot, god of war etc., this also is enough to explain the advantage of CCD product.
Four, 3D:
The 3D metering system is to adopt image recognition technology, is contained in the image information on the wheel reflector with the collection of CCD digital camera, and to measure the relative accuracy of wheel, the artificial wheel that promotes moves forward and backward, and by CCD camera collection information, obtains its coordinate and angle.This is a kind of quite advanced metering system, and is American-European at present commonly used.But he has strict mechanical precision requirement to lifting machine and rotation angle disk etc., and present domestic lifting machine and rotation angle disk can't match, and influence detects effect, moreover the demarcation mode is loaded down with trivial details, costs an arm and a leg, and detection speed is unhappy, and after-sales service is slower, is not domestic main flow.
In view of this, those skilled in the art provide a kind of chassis four-wheel position finder to the problems referred to above.
Summary of the invention
The utility model provides a kind of chassis four-wheel position finder, has overcome the difficulty of prior art, adopts digital ccd image technology, and the high precision infrared emission makes the precision of images of collection higher, and antijamming capability is stronger, and conserve space, and is of many uses.
The utility model adopts following technical scheme:
The utility model provides a kind of chassis four-wheel position finder, image acquisition device when comprising four targets wheel clamping adults, two camera heads, high-precision real, cylinder, four targets hooks and main control system; The both sides on said cylinder top are provided with said camera head respectively; The both sides of said cylinder bottom are provided with said target hook respectively; Said target wheel clamping adult is arranged on the said target hook; Image acquisition device and said main control system are separately positioned in the said cylinder during said high-precision real, and image acquisition device connects said camera head and main control system respectively, the two-way interactive data during said high-precision real.Said camera head is the area array CCD high-resolution camera.Also comprise two groups of LED infrared light supplies, be separately fixed at around the said camera head.Said LED infrared light supply is distributed in around the said camera head in the form of a ring.
Preferably, said target wheel clamping adult comprises target and wheel folder, and the said folder of taking turns is fixed with wheel, and said target is arranged on the said wheel carrier rotationally.
Preferably, also comprise display, be arranged on said cylinder middle part, said display connects said main control system.
Owing to adopted above-mentioned technology, compared with prior art, the chassis four-wheel position finder of the utility model adopts digital ccd image technology, and the high precision infrared emission makes the precision of images of collection higher, and antijamming capability is stronger, and conserve space, and is of many uses.
Further specify the utility model below in conjunction with accompanying drawing and embodiment.
Description of drawings
Fig. 1 is the structural representation of the chassis four-wheel position finder among the embodiment;
Fig. 2 is the measuring beam synoptic diagram of the chassis four-wheel position finder among the embodiment;
Reference model synoptic diagram when Fig. 3 is zero point of the chassis four-wheel position finder among the embodiment;
Fig. 4 is the reference model synoptic diagram of the band certain angle of the chassis four-wheel position finder among the embodiment;
Fig. 5 be among the embodiment the chassis four-wheel position finder in signal timing diagram;
Fig. 6 is the schematic appearance of the chassis four-wheel position finder among the embodiment;
Fig. 7 is the user mode synoptic diagram of the chassis four-wheel position finder among the embodiment.
Reference numeral
1 is display;
2 is main control system;
3 image acquisition devices when being high-precision real;
4 is camera head;
5 is the LED infrared light supply;
6 are target wheel clamping adult;
7 is cylinder;
8 are the target hook.
Embodiment
Introduce a kind of specific embodiment of the utility model below through Fig. 1 to 7.
Shown in Fig. 1 to 7, a kind of chassis four-wheel position finder of the utility model, image acquisition device 3 when comprising four targets wheel clamping adults 6, two camera heads 4, high-precision real, cylinder 7, four target hooks 8 and main control systems 2; The both sides on said cylinder 7 tops are provided with said camera head 4 respectively; The both sides of said cylinder 7 bottoms are provided with said target hook 8 respectively; Said target wheel clamping adult 6 is arranged on the said target hook 8; Image acquisition device 3 is separately positioned in the said cylinder 7 with said main control system 2 during said high-precision real, and image acquisition device 3 connects said camera head 4 and main control system 2, two-way interactive data respectively during said high-precision real.
Said camera head 4 is area array CCD high-resolution cameras.Also comprise two groups of LED infrared light supplies 5, be separately fixed at around the said camera head 4.Said LED infrared light supply 5 is distributed in around the said camera head 4 in the form of a ring.Said target wheel clamping adult 6 comprises target and wheel folder, and the said folder of taking turns is fixed with wheel, and said target is arranged on the said wheel carrier rotationally.Also comprise display 1, be arranged on said cylinder 7 middle parts, said display connects said main control system 2.
The utility model is to adopt digital ccd image technology; Horizontal 4 infrared emission of high precision; Become the totally-enclosed light velocity measurement of 32 bundles at the car body quadrilateral; And utilize mobile sensor technology to accomplish the 3D dynamic image and measure, so the chassis four-wheel position finder can accomplish the mensuration of wheel positional parameters such as toe-in, camber, reverse caster, Kingpin inclination and push angle, wheel beat and wheelbase wheelspan length detection fast and accurately, native system mainly is made up of IMAQ part and figure process software.
Image acquisition device, secondary light source and target when the dynamic measuring tech building block in the utility model is 2 groups of area array CCD camera heads, high-precision real.When car body moving forward and backward on the lifting machine platform, capture the icon deformation pattern of clamping on four reflecting plates of wheel.Mathematics three-dimensional model formula through setting up calculates the wheel angular error.
Native system contains 2 groups of high-resolution cameras, respectively four target images that are installed on the wheel is caught.Video camera is fixed within two shells.Video camera has carried out accurate demarcation when installing first, the user need not it to be demarcated in the use of chassis four-wheel position finder again.
Each camera is furnished with one group of LED infrared light supply, is used to help video camera to catch the target image, is fixed on video camera and distributes in the form of a ring all around.System has four target wheel clamping adults, is the critical component of whole detection system, is the target of video camera monitoring, and the sign that wheel is installed is arranged at the target back side.When assembly wheel presss from both sides; It is suitable with the spacing adjustment of tire to need through adjusting knob; And the wheel rim place of selecting not have shape damage or counterweight lead links to each other with automobile rim as the installation site, must guarantee earlier that simultaneously the horizontal small end face of four tires closely contacts with wheel rim; The locking wheel folder clamps the band of insuring to wheel simultaneously again.
Accessory in the utility model also comprises rotation angle disk, bearing circle fixed mount and braking vane fixed mount.
The CCD element is a digital element, and the CCD that is applied on the four-wheel position finder of chassis is generally linear array structure.Several thousand quick unit of relatively independent picture distribute point-blank with the neighbor distance of 13-14 micron.Irradiate light produces signal charge to the quick unit of picture, signal charge externally under the effect of pulse the micro processor of direct input pickup handle, thereby calculate the angle and the prenex angle of incident light accurately.
Each wheel all has measurement mechanism respectively at X axle and Y axle.With regard to an axle, it is existing emitter simultaneously, is used for launching the receiving trap reception of light by the opposite.Simultaneously receiving trap is arranged also, be used for receiving the light that the opposite launches.These two-way 8 bundle light do not disturb when working mutually, and 32 bundle light of four wheels have constituted the quadrilateral system of a sealing, and are as shown in Figure 2.
Infrared transmitting tube and CCD receiver module are contained on the different sensor, for example respectively: open the power valve of the near front wheel, the CCD module of off-front wheel receives, and reference model is as shown in Figure 3 during zero point, and when measurement presented certain angle, model was illustrated in fig. 4 shown below.
This moment, CCD received the variation of piece corresponding photosensitive position in the time of can passing through irradiate light, and drew concrete parameter and the data that CCD receives residing angle of piece and wheel alignment through the technology of control chip.
What this project adopted is that control chip is the C8051F120 of SILABS company, and it is a high speed processor, and dominant frequency can reach 100MHz, and a clock period be exactly a machine cycle, its port adopts cross bar switch flexible configuration.For the ccd sensor of using in this project is TCD1304AP; It is the line array CCD device of one 3648 pixel, and its key problem is her sequential configuration, and synchronizing signal Φ M is 2MHz; SH signal and ICG signal serve as that reference is configured with time-base signal Φ M, and sequential chart is as shown in Figure 5.
Can know that to sum up owing to adopted above-mentioned technology, the chassis four-wheel position finder of the utility model to adopt digital ccd image technology, the high precision infrared emission makes the precision of images of collection higher, antijamming capability is stronger, and conserve space, and is of many uses.
Above-described embodiment only is used to explain the technological thought and the characteristics of the utility model; Its purpose is the content that makes those skilled in the art can understand the utility model and implements according to this; Can not only limit the claim of the utility model with present embodiment; Be all equal variation or modifications of doing according to the spirit that the utility model disclosed, still drop in the claim of the utility model.
Claims (3)
- , a kind of chassis four-wheel position finder, it is characterized in that: image acquisition device (3), two groups of LED infrared light supplies (5), cylinder (7), four targets hooks (8) and main control systems (2) when comprising four targets wheel clamping adults (6), two camera heads (4), high-precision real;The both sides on said cylinder (7) top are provided with said camera head (4) respectively; The both sides of said cylinder (7) bottom are provided with said target hook (8) respectively; Said target wheel clamping adult (6) is arranged on the said target hook (8); Image acquisition device (3) and said main control system (2) are separately positioned in the said cylinder (7) during said high-precision real; Image acquisition device (3) connects said camera head (4) and main control system (2) respectively during said high-precision real, the two-way interactive data, and said camera head (4) is the area array CCD high-resolution camera; Said LED infrared light supply (5) is separately fixed at said camera head (4) on every side, and said LED infrared light supply (5) is distributed in said camera head (4) on every side in the form of a ring.
- 2. chassis as claimed in claim 1 four-wheel position finder is characterized in that: said target wheel clamping adult (6) comprises target and wheel folder, and the said folder of taking turns is fixed with wheel, and said target is arranged on the said wheel carrier rotationally.
- 3. chassis as claimed in claim 1 four-wheel position finder is characterized in that: also comprise display (1), be arranged on said cylinder (7) middle part, said display connects said main control system (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205669451U CN202547956U (en) | 2011-12-30 | 2011-12-30 | Chassis four-wheel aligner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205669451U CN202547956U (en) | 2011-12-30 | 2011-12-30 | Chassis four-wheel aligner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202547956U true CN202547956U (en) | 2012-11-21 |
Family
ID=47168574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205669451U Expired - Lifetime CN202547956U (en) | 2011-12-30 | 2011-12-30 | Chassis four-wheel aligner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202547956U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103134695A (en) * | 2013-02-05 | 2013-06-05 | 上海鼎盛汽车检测设备有限公司 | Reflection disc used in three-dimensional four-wheel positioning system |
| CN112556604A (en) * | 2020-12-22 | 2021-03-26 | 同济大学 | Four-wheel positioning device and method for FASE racing car |
-
2011
- 2011-12-30 CN CN2011205669451U patent/CN202547956U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103134695A (en) * | 2013-02-05 | 2013-06-05 | 上海鼎盛汽车检测设备有限公司 | Reflection disc used in three-dimensional four-wheel positioning system |
| CN103134695B (en) * | 2013-02-05 | 2016-06-01 | 上海鼎盛汽车检测设备有限公司 | The reflection dish being applied in three-dimensional four-wheel aligner system |
| CN112556604A (en) * | 2020-12-22 | 2021-03-26 | 同济大学 | Four-wheel positioning device and method for FASE racing car |
| CN112556604B (en) * | 2020-12-22 | 2022-04-05 | 同济大学 | Four-wheel positioning device and method for FASE racing car |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI YICHENG AUTO-INSPECTION DEVICE SCIENCE + Free format text: FORMER NAME: SHANGHAI YICHENG AUTO-INSPECTION DEVICE SCIENCE + TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 201821, 2399, Xin Xin Bei Road, Shanghai, Jiading District Patentee after: Shanghai Yicheng Auto-Inspection Device Science & Technology Co., Ltd. Address before: 201821, 2399, Xin Xin Bei Road, Shanghai, Jiading District Patentee before: Shanghai Yicheng Auto Inspection Device Science & Technology Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI YECENG SCIENCE + TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SHANGHAI YICHENG AUTO-INSPECTION DEVICE SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20150309 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150309 Address after: 201821, Jiading District, Shanghai Xin Sheng North Road, No. 3, 2399, 2, A District Patentee after: One one-tenth, Shanghai auto technology company limited Address before: 201821, 2399, Xin Xin Bei Road, Shanghai, Jiading District Patentee before: Shanghai Yicheng Auto-Inspection Device Science & Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |
|
| CX01 | Expiry of patent term |