CN203881362U - Three-dimensional motion platform of combined automobile instrument endurance performance detection platform - Google Patents
Three-dimensional motion platform of combined automobile instrument endurance performance detection platform Download PDFInfo
- Publication number
- CN203881362U CN203881362U CN201420134410.0U CN201420134410U CN203881362U CN 203881362 U CN203881362 U CN 203881362U CN 201420134410 U CN201420134410 U CN 201420134410U CN 203881362 U CN203881362 U CN 203881362U
- Authority
- CN
- China
- Prior art keywords
- dimensional motion
- motion platform
- camera
- instrument
- platform
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Abstract
The utility model provides a three-dimensional motion platform of a combined automobile instrument endurance performance detection platform and relates to the field of automobile instrument performance detection equipment. The three-dimensional motion platform comprises a rectangular platform body formed by aluminum alloy sections, an image capturing mechanism, a clamp portion and a corresponding wire beam unit, wherein the image capturing mechanism and the clamp portion are arranged in the rectangular platform body, the image capturing mechanism comprises the three-dimensional motion platform, an upper end of the three-dimensional motion platform is mounted at an inner top portion of the rectangular platform body through a fixing board, a lower end of the three-dimensional motion platform is equipped with a camera, and the three-dimensional motion platform is employed to control a position of the camera. According to the three-dimensional motion platform, an automobile rotating speed gauge, an automobile speed gauge, a fuel oil gauge, a water temperature gauge and a pressure gauge are driven, the camera is employed to move to a position of one specific sub gauge to acquire an image of an instrument, an indicating value of an instrument pointer is calculated and is compared with a design value or a standard value to determine whether the value is qualified, and the result is automatically stored. The three-dimensional motion platform has advantages of wide application scope, convenient operation, high detection precision, reliable detection and strong expandability and can avoid uncertainty of manual observation.
Description
Technical field
The utility model relates to automobile instrument performance detection apparatus field, is specifically related to a kind of automobile combination meter endurance quality monitor station based on machine vision.
Background technology
The features such as automobile combination meter performance detecting system should have convenient mounting and clamping, easy to operate, and data are accurate.But how detecting the running status of automobile instrument, how to judge whether instrument meets design requirement, is instrument production firm, the active demand of automobile factory and inspection center.Current, the checkout equipment of domestic automobile combination instrument, versatility is poor, volume is large, and is mainly by the method for artificial observation, to come the indicated value of interpretoscope list index, poor repeatability, degree of accuracy is not high, is easily subject to the interference of factor and individual subjective factor, has significant limitation.
Utility model content
The purpose of this utility model is the defect existing for prior art, and a kind of automobile combination meter endurance quality monitor station based on machine vision is provided.
Technical problem to be solved in the utility model realizes by the following technical solutions:
A kind of automobile combination meter endurance quality monitor station based on machine vision, it is characterized in that: comprise by the combination instrument of computer system control stand is installed, stand is installed and mainly by stage body, image capturing mechanism, holder part and corresponding wirning harness unit, is formed;
Stage body adopts the rectangular frame structure of aluminium alloy extrusions, in the middle of stage body, by the work top of a level is set, stage body is divided into upper and lower two cavitys, upper and lower two cavity sides are provided with switching door, described image capturing mechanism and holder part are arranged in upper cavity, wherein image capturing mechanism is arranged on the inner top of upper cavity, and holder part is arranged on the inner bottom part of upper cavity;
Described image capturing mechanism comprises three-dimensional motion platform, and three-dimensional motion platform upper end is arranged on the inner top of upper cavity by fixed head, and a video camera is installed in three-dimensional motion platform lower end, utilizes three-dimensional motion platform to control the position of video camera;
Described holder part comprises three groups of repetitives altogether, every group is an independently clamping mechanism, clamping mechanism comprises the fixed base plate being fixed on work top, be fixed on the capable of adjusting support board of fixed base plate upper end, be arranged on the instrument setting angle adjustable plate on capable of adjusting support board, the instrument clamping base plate being rotationally connected by rotating shaft and instrument setting angle adjustable plate, described instrument clamping base plate one end is provided with stiff end regulating block, the described instrument clamping base plate other end arranges clamping screw, clamping screw front end is provided with nylon cushion, described rotating shaft one end is provided with pointer, on described instrument setting angle adjustable plate, be shaped with the scale mark being used in conjunction with pointer.Clamping mechanism has angular adjustment (0～90 °) and indicating device (1 ° of resolution), to guarantee instrument setting angle.
Described three-dimensional motion platform comprises X-direction motorized precision translation stage, Y-direction motorized precision translation stage, described X-direction motorized precision translation stage is arranged on Y-direction motorized precision translation stage below, described X-direction motorized precision translation stage lower end connects Z-direction electric expansion bracket, Z-direction electric expansion bracket lower end is fixedly installed camera angle adjustable plate, camera angle adjustable plate connects camera installation rack, and video camera is installed on camera installation rack.
Focusing lens, can conveniently realize the detection of the instrument respectively varying in size, and utilize three-dimensional motion platform to control the position of camera, realize the catching of whole combination instrument image, and by video frequency collection card, transmit computing machine and make a relevant analysis and process.
The scale mark that is provided with arc adjustment hole and arc branch on described camera angle adjustable plate, the centre position of described camera installation rack is provided with arrow.
Combination instrument dish is fixed on clamping mechanism, by clamping screw, screws, and the nylon cushion of clamping screw front end setting directly contacts with combination instrument dish, can play the effect of protection combination panel board.
A kind of camera angle regulating device, be fixed on the camera angle adjustable plate on three-dimensional motion platform, camera angle adjustable plate lower end connects camera installation rack, video camera is installed on camera installation rack, on described camera angle adjustable plate, be provided with the scale mark of arc adjustment hole and arc branch, the centre position of described camera installation rack is provided with arrow, between described camera angle adjustable plate and camera installation rack, by two bolts, is connected, and one of them bolt is through arc adjustment hole.While regulating camera angle, unclamp the bolt through arc adjustment hole, camera installation rack can rotate and regulate around another bolt.
The application is formed and is realized comprehensive performance test and two kinds of functions of endurancing by computer control system and combination instrument installation stand; Department of computer science unifies to control and detects various test actions and the detection that board is realized monitor station, output test report.
Computer control system
Comprise industrial control computer, programmable power supply, on-off output card, gas-holder, analog acquisition card, baroceptor, waveform blocks, program-controlled electric baffle-wall.Programmable power supply can be according to the automatic load test voltage of arranging of instrument; The igniting of on-off output card major control instrument, illumination, the break-make of air pressure valve and each pilot lamp signal; Gas-holder, output pressure is to the rain glass of instrument; Analog acquisition card and baroceptor coordinate jointly, can obtain the air pressure of current gas-holder, can form the feedback of rain glass input air pressure; Waveform generation card can send two-way waveform signal and drive respectively the speed of a motor vehicle of instrument and the action of revolution speed meter pointer, and the type of waveform, amplitude and dutycycle can be adjusted; Program-controlled electric baffle-wall, with computing machine by serial communication, the action of a plurality of relays on control panel, the accurate signal source of simulated oil scale, water-thermometer, output resistance driving fuel oil and water-thermometer.
Wirning harness unit, the wirning harness providing can be applicable to the connection of most combination instruments, the combination instrument customization of indivedual kinds.
Software of the present utility model comprises durable software and performance software two parts:
Durable software,
Durable software can be realized test endurance life of three a plurality of instrument of station simultaneously, and concrete module has the management of product, parameter setting, instrument drive and long duration test module.Product administration module, can add the instrument product model that deletion will be tested.Parameter arranges module, the pulse pattern (sine wave or square wave) of speedometer and tachometer gage is set, dutycycle, amplitude, pulsed frequency when maximal rate or rotating speed, initial ratio, stop ratio, dead time, initial resistance range and the dead time of fuel oil and water-thermometer, barometric initial termination air pressure and dead time.Instrument drive module, mainly allows instrument move to assigned address according to testing requirements transmitted signal.Long duration test module, the durable action of each table of start detection Thread control.
Performance software,
Software development operation platform is vs2010+opencv2.4, may operate under windowsxp/7/8 system.Performance software comprises the management of product, product parameters setting, and instrument drive, motion-control module, image acquisition and processing module, result output module forms.Wherein the function of the management of product and instrument drive module is the same with durable software.Product parameters arranges, and the image-region of the single sublist of instrument is mainly set, type of drive, the image-region of profile and pointer and interior external radius, the parameter of binaryzation, the colourity of colored pointer, saturation degree and brightness range.Motion-control module, the seesawing up and down of three-dimensional motion platform of controlling camera place makes the center of picture and the sublist center superposition that will detect.
Image capture module, mainly according to the time shutter of the camera of setting, ADC rank, white balance, gamma correction, system-gain is equivalent controls camera in real time or single frames acquisition instrument image being presented on the main interface of software, simultaneously picture centre show a center of circle and "+" number, for adjusting camera position; When image is processed, according to the feature of instrument, by the solution procedure of meter reading, be divided into following four steps:
1) obtain the scale profile of instrument.In the annulus that in the contour area by rectangle and profile, external radius forms, according to binary-state threshold, obtain scale profile, and preserve profile parameters.If some profiles are not got, can after manually the respective regions of this scale profile of point obtains outline position, preserve.
2) the concrete scale value of scale contour correspondence is set, thus can scale value corresponding to known profile reverse.Existing scale profile is fitted to an ellipse, then every pair of adjacent profile is directly supplemented to 5 points, improve contour accuracy.
3) obtain the pointer of instrument.In the annulus that in the contour area by rectangle and pointer, external radius forms, according to binary-state threshold, first obtain pointer profile.
4) calculate the indicated value of pointer.On the basis of known pointer profile, there are two kinds of methods of asking pointer value.
A) then this pointer profile is carried out to refinement, and ask fitting a straight line L with Hough algorithm, calculate the intersection point of L and the line segment K of close scale profile composition, according to the relation of interior minute line segment, calculate the indicated value of this point.
B) calculate the most advanced and sophisticated point of pointer profile, the line segment K being comprised of to close scale profile this makes vertical line, obtains intersection point A, equally according to interior minute line segment relation, calculates the indicated value of this point.
When gauge pointer fitting a straight line respond well, just use a) method to calculate indicated value; Otherwise, use algorithm b).
Result output module, mainly comprises and derives form and print data.
3. the demonstration test of the utility model monitor station
For the performance of inspection platform, we gather 150 width speedometer pictures monitor station and manual detection value are compared, and the average relative error that automatically reads number and artificial visually examine's value drawing is 1.1%, meets the requirement of instrument accuracy of detection; Set parameter, take speedometer as example, the performance test of doing the single sublist of instrument needs the time, and under automatic condition, each scale needs 5 seconds.This time comprises from transmitted driving instrument, after waiting for that instrument puts in place, then the T.T. of processing, and in fact, the time that image is processed is only 0.1 second, but also can further optimize.The precision of program-controlled resistor is in 0.5 Europe, and the precision of pulse waveform card is 1HZ, and can revise by software calibration algorithm.
The beneficial effects of the utility model are:
The utility model provides a kind of automobile combination meter endurance quality monitor station based on machine vision, by to automobile speed indicator, speedometer, fuel oil, water-thermometer, barometric driving, utilize camera to move to the position acquisition instrument picture of specific sublist, calculate the indicated value of gauge pointer, and with design load or standard value comparison, it is qualified to determine whether, automatically saving result.Through checking, the utility model wide accommodation, easy to operate, measuring accuracy is high, detects reliably, and the feature such as extensibility is strong, can avoid the uncertainty of artificial observation.
Can simulate accurately various pulses and resistance, air pressure signal, drives instrument action, and the machine vision technique analysis meter indicated value of employing, can overcome interference from human factor, reproducible, reliable and stable; This equipment meets the requirement of GB and industry standard, in curstomer's site operational excellence, has good promotional value.
Accompanying drawing explanation
Fig. 1 is that master of the present utility model looks schematic diagram;
Fig. 2 is schematic side view of the present utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with specific embodiments and the drawings, further set forth the utility model, but following embodiment is only preferred embodiment of the present utility model, not all.Embodiment based in embodiment, those skilled in the art are other embodiment that obtains under the prerequisite of not making creative work, all belongs to the protection domain of this patent.
As shown in Figure 1, 2, a kind of three-dimensional motion platform of automobile combination meter endurance quality monitor station, comprise that the rectangle stage body 1, image capturing mechanism 2, holder part 3 and the corresponding wirning harness unit that aluminium alloy extrusions, consist of form, image capturing mechanism 2, holder part 3 are arranged in rectangle stage body 1;
Image capturing mechanism 2 comprises three-dimensional motion platform 22, and three-dimensional motion platform 22 upper ends are arranged on the inner top of upper cavity 6 by fixed head 21, and a video camera 23 is installed in three-dimensional motion platform 22 lower ends, utilizes three-dimensional motion platform 22 to control the position of video camera 23; Three-dimensional motion platform 22 comprises X-direction motorized precision translation stage 222, Y-direction motorized precision translation stage 221, X-direction motorized precision translation stage 222 is arranged on Y-direction motorized precision translation stage 221 belows, X-direction motorized precision translation stage 222 lower ends connect Z-direction electric expansion bracket 223, Z-direction electric expansion bracket 223 lower ends are fixedly installed camera angle adjustable plate 224, camera angle adjustable plate 224 connects camera installation rack 225, and video camera 23 is installed on camera installation rack 225.
More than show and described ultimate principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what in above-described embodiment and instructions, describe is only preference of the present utility model; be not used for limiting the utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (2)
1. the three-dimensional motion platform of an automobile combination meter endurance quality monitor station, it is characterized in that: comprise that the rectangle stage body, image capturing mechanism, holder part and the corresponding wirning harness unit that aluminium alloy extrusions, consist of form, described image capturing mechanism, holder part are arranged in rectangle stage body;
Described image capturing mechanism comprises three-dimensional motion platform, and three-dimensional motion platform upper end is arranged on the inner top of rectangle stage body by fixed head, and a video camera is installed in three-dimensional motion platform lower end, utilizes three-dimensional motion platform to control the position of video camera; Described three-dimensional motion platform comprises X-direction motorized precision translation stage, Y-direction motorized precision translation stage, described X-direction motorized precision translation stage is arranged on Y-direction motorized precision translation stage below, described X-direction motorized precision translation stage lower end connects Z-direction electric expansion bracket, Z-direction electric expansion bracket lower end is fixedly installed camera angle adjustable plate, camera angle adjustable plate connects camera installation rack, and video camera is installed on camera installation rack.
2. the three-dimensional motion platform of automobile combination meter endurance quality monitor station according to claim 1, it is characterized in that: on described camera angle adjustable plate, be provided with the scale mark of arc adjustment hole and arc branch, the centre position of described camera installation rack is provided with arrow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420134410.0U CN203881362U (en) | 2014-03-24 | 2014-03-24 | Three-dimensional motion platform of combined automobile instrument endurance performance detection platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420134410.0U CN203881362U (en) | 2014-03-24 | 2014-03-24 | Three-dimensional motion platform of combined automobile instrument endurance performance detection platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203881362U true CN203881362U (en) | 2014-10-15 |
Family
ID=51681850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420134410.0U Expired - Fee Related CN203881362U (en) | 2014-03-24 | 2014-03-24 | Three-dimensional motion platform of combined automobile instrument endurance performance detection platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203881362U (en) |
-
2014
- 2014-03-24 CN CN201420134410.0U patent/CN203881362U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103913190A (en) | Automobile combination instrument endurance performance detecting table based on machine vision | |
| CN103913191A (en) | Automobile combination instrument performance detection device | |
| CN101672663B (en) | Auto meter visual detecting system based on computer and detecting method thereof | |
| CN206132356U (en) | HUD image test equipment | |
| CN204287496U (en) | α, β surface contamination detection instrument automatic Verification/calibration/pick-up unit | |
| CN103841726B (en) | The real-time adjusting device of light-source brightness and method of adjustment thereof in pole piece defects detection | |
| CN204405004U (en) | Valve spring physical dimension measures testing machine | |
| CN208077464U (en) | A kind of physics facility based on level detection | |
| CN109855796B (en) | Automatic calibration system and method for force value of testing machine | |
| CN203881363U (en) | Clamping mechanism for combined automobile instrument endurance performance detection platform | |
| CN107044824A (en) | A kind of one-touch intelligent double vision feels image measurer | |
| CN203881361U (en) | Automobile combination instrument endurance performance detection platform based on machine vision | |
| CN203572635U (en) | Automatic light-distribution detection device through car light image | |
| CN102830285B (en) | Rear windscreen glass resistor and spherical face detection equipment | |
| CN203881364U (en) | Automobile combination instrument performance test apparatus | |
| CN104913721B (en) | A kind of experimental provision of industrial vision sensor detection | |
| CN102297686B (en) | Compass testing equipment and method | |
| CN203881362U (en) | Three-dimensional motion platform of combined automobile instrument endurance performance detection platform | |
| CN114235150A (en) | Testing method and testing equipment based on Local Dimming halo | |
| CN203881365U (en) | Image capture mechanism of automobile combination instrument durability detection bench | |
| CN203758508U (en) | Automatic adjusting and measuring apparatus of five-axis image | |
| CN204535851U (en) | A kind of automatic location illuminance tester verification device | |
| CN109799069A (en) | A kind of locomotive headlamp illuminance automatic checkout system | |
| CN211291741U (en) | Sunlight sensor ambient light test system | |
| CN102200778B (en) | Device for automatically calibrating parameters of regulators |
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 |
Granted publication date: 20141015 Termination date: 20150324 |
|
| EXPY | Termination of patent right or utility model |