CN104458208A - Detection device and detection method of automobile headlamp assembly - Google Patents
Detection device and detection method of automobile headlamp assembly Download PDFInfo
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- CN104458208A CN104458208A CN201310433205.4A CN201310433205A CN104458208A CN 104458208 A CN104458208 A CN 104458208A CN 201310433205 A CN201310433205 A CN 201310433205A CN 104458208 A CN104458208 A CN 104458208A
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Abstract
The invention provides a detection device and detection method of an automobile headlamp assembly. According to the detection method, after the automobile headlamp assembly is fixed to a product containing mechanism of the detection device, an automobile lamp detection mechanism in the detection device controls a baffle plate of an automobile lamp to be opened/closed, a distance light/passing light type image corresponding to the automobile lamp is captured by an image capturing device, and whether the automobile lamp and the baffle plate are qualified or not is determined through the gray level value of the image; meanwhile, a load piece is loaded on a motor through a motor detection mechanism in the detection device, the motor is made to move leftwards/rightwards step by step under the loading condition, and whether the motor is qualified or not is detected according to the moving stepping condition and the rotating direction. According to the detection device and method, the structure of the detection device is simplified, and the work efficiency of the detection device is effectively improved.
Description
Technical field
The present invention relates to a kind of checkout equipment and detection method of automobile front assembly.
Background technology
Along with the develop rapidly of China's economy and the raising of living standards of the people, Domestic Automotive Industry has stepped into the fast growth phase.Not only the output of automobile is increasing substantially, and the scientific and technological content of automobile is also in continuous increase.Hyundai Motor manufacturing technology and electronic technology, infotech merge day by day closely.Automobile is no longer the simple vehicles, becomes the carrier of modern science and technology.
Lighting device is safety component very important in automobile, although obtain some progress at the design aspect of headlamp in recent years, passing beam of today and car light turn to, and still can not meet some important functions that user expects.Such as, still can not provide sufficiently long visibility to the road surface of low contrast, braking distance when causing visibility to be less than normal travel speed.This is because the dipped beam light type of lighting device is defective.
The quality of the luminous intensity distribution performance of motor vehicles car light, directly has influence on the safety of vehicle and the person.Therefore, all the luminous intensity distribution performance of associated vehicle is classified as automotive regulation or compulsory standard test item both at home and abroad.As the various intelligent checking system and the device that detect car light luminous intensity distribution performance, have also been obtained in recent years and develop rapidly.According to actual needs, develop a kind of low cost, high-precision intelligent Vehicular lamp luminous intensity distribution detection system, be very important.Vehicular lamp is except construction standard, and light standard mainly contains luminous intensity distribution performance and irradiation position standard, and this detection system not only can detect luminous intensity distribution performance but also can detect irradiation location criteria.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of checkout equipment and detection method of automobile front assembly, for solving the problems such as assay device structures in prior art is complicated.
For achieving the above object and other relevant objects, the invention provides a kind of checkout equipment of automobile front assembly, wherein, described automobile front assembly comprises: car light, adjust described car light light shutter, make described car light adjust the motor of lateral angles, wherein, described checkout equipment at least comprises: for the product placement mechanism of fixing described automobile front assembly; Be arranged on the car light testing agency on described car light light emission direction, comprise: be provided with camera bellows towards described car light light emission direction, the image-pickup device of the light type image on the imaging region for taking described camera bellows is set in described camera bellows, the detection device for lamp be connected with described image-pickup device; The motor testing agency be connected with described motor, comprising: with the load elements that described motor is fixing, and the detecting device for motor be connected with the signal control interface of described motor, and wherein, described load elements is provided with stroke inductor;
Preferably, described product placement mechanism comprises: the firm banking on the downside of fixing described automobile front assembly, the strap above fixing described automobile front assembly.
Preferably, described product placement mechanism also comprises: control the shutter control assembly of described shutter opening/closing and pushed by described car light and be fixed on the propelling movement parts on described automobile front assembly.
Preferably, described product placement mechanism also comprises: the holding firmware being positioned at described motor both sides, and is positioned at the jack-up cylinder below each described holding firmware.
Preferably, described load elements comprises: be positioned at described motor both sides and fix a pair counterweight on described product placement mechanism, and each counterweight is fixed on the link on described motor.
Preferably, described load elements comprises: to fix on car light and with the linkage part of described motors.
Preferably, described car light testing agency also comprises: to be arranged between described car light and described imaging region and at a distance of the optical lens of described car light predeterminable range.
Preferably, described detection device for lamp comprises: the first control module, for controlling shutter described in described shutter control assembly opening/closing; Light type extraction module, for obtain described image-pickup device absorb image on described camera bellows side plate, and from described image, extract the corresponding dipped beam/distance light light type image of described car light according to the intensity profile of described image; Light type detection module, the gray scale total value for the profile by extracted dipped beam/distance light light type image compares with the gray scale total value scope preset, and whether detect described car light according to the result compared qualified.
Whether preferably, described detection device for lamp also comprises: shutter detection module, qualified for detecting described shutter based on the gray-scale value of the image-region beyond extracted dipped beam light type image.
Preferably, described detecting device for motor comprises: the second control module, is gone to the stall position of side for controlling described motor in the loaded state by current location; Motor detection module progressively turns round for controlling described motor, and whether detect described motor according to pivotal stepping situation and gyratory directions qualified.
Preferably, described motor detection module is used for progressively turning round according to motor described in the stepping cut to lengthen preset, until receive the Hall element being positioned at described motor send the induction information of car light direct projection, whether and it is qualified to detect described motor based on the judged result whether pivotal number of steps is positioned at default left/right number of steps scope.
Preferably, described motor detection module also progressively turns round for controlling described motor, until the pivotal number of steps of described motor reaches default number of steps, then described motor detection module according to the swing away that provides of pivotal number of steps and described stroke inductor from, calculate described motor pivotal unit stepping length, and whether detect described motor based on calculated unit stepping length and the comparative result of the left/right unit stepping length range preset qualified.
Based on above-mentioned purpose, the present invention also provides a kind of as above arbitrary described checkout equipment that utilizes to detect the method for automobile front assembly, wherein, described automobile front assembly comprises: car light, adjust described car light light shutter, make described car light adjust the motor of lateral angles, described detection method at least comprises:
Car light detects dress method, comprising: control shutter described in described shutter control assembly opening/closing; Obtain described image-pickup device absorb image on described camera bellows side plate, and from described image, extract the corresponding dipped beam/distance light light type image of described car light according to the intensity profile of described image; The gray scale total value of the profile of extracted dipped beam/distance light light type image and the gray scale total value scope preset are compared, and whether detect described car light according to the result compared qualified.
Motor detection method, comprising: control described motor is gone to side in the loaded state stall position by current location; Control described motor progressively to turn round, and whether detect described motor according to pivotal stepping situation and gyratory directions qualified.
Preferably, described car light detection dress method also comprises: whether the gray-scale value based on the image-region beyond extracted dipped beam light type image detects described shutter qualified.
Preferably, comprise according to the mode that whether qualified pivotal stepping situation and gyratory directions detect described motor: progressively turn round according to motor described in the stepping cut to lengthen preset, until receive the Hall element being positioned at described motor send the induction information of car light direct projection, whether and it is qualified to detect described motor based on the judged result whether pivotal number of steps is positioned at default left/right number of steps scope.
Preferably, comprise according to the mode that whether qualified pivotal stepping situation and gyratory directions detect described motor: control described motor and progressively turn round, until the pivotal number of steps of described motor reaches default number of steps, then described detecting device for motor according to the swing away that provides of pivotal number of steps and described stroke inductor from, calculate described motor pivotal unit stepping length, and whether detect described motor based on calculated unit stepping length and the comparative result of the left/right unit stepping length range preset qualified.
As mentioned above, the checkout equipment of automobile front assembly of the present invention and detection method, there is following beneficial effect: described checkout equipment arranges load elements on described motor, described motor is made to run left and right in load conditions, and whether detect described motor qualified, so can not only monitoring motor left and right direction adjustment whether in the scope of defined, the surplus that described motor retains can also be detected simultaneously and also meet standard; The intensity profile of image that also utilizes described checkout equipment detects the distance light/dipped beam light type of car light and the light transmission of shutter simultaneously, effectively improves the work efficiency of checkout equipment.
Accompanying drawing explanation
Fig. 1 is shown as the structural representation of the checkout equipment of automobile front assembly of the present invention.
Fig. 2 is shown as the vehicle lamp detection method process flow diagram in the detection method of automobile front assembly of the present invention.
Fig. 3 is shown as the motor detection method process flow diagram in the detection method of automobile front assembly of the present invention.
Embodiment
By particular specific embodiment, embodiments of the present invention are described below, person skilled in the art scholar the content disclosed by this instructions can understand other advantages of the present invention and effect easily.
Refer to Fig. 1 to Fig. 3.Notice, structure, ratio, size etc. that this instructions institute accompanying drawings illustrates, content all only in order to coordinate instructions to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the present invention, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the present invention can produce and the object that can reach, still all should drop on disclosed technology contents and obtain in the scope that can contain.
As shown in Figure 1, the invention provides a kind of checkout equipment of automobile front assembly.Described automobile front assembly at least comprises: car light, adjust the shutter of described car light light, described car light is made to adjust the motor of lateral angles, by the support that described car light, shutter and motor link together according to preset structure, wherein, described motor is also provided with the sensor for representing described car light irradiation direction, and described sensor is generally Hall element, when described sensor detects that described car light is positioned at dead ahead, induction information will be exported.
Described checkout equipment comprises: product placement mechanism 11, car light testing agency 12 and motor 22 testing agency.
Described product placement mechanism 11 is for being fixed on described checkout equipment by described automobile front assembly.Wherein, described product placement mechanism 11 can be spiral fixed sturcture, or clamping structure.
Preferably, described product placement mechanism 11 comprises: the firm banking 111 on the downside of fixing described automobile front assembly, the strap 113 above fixing described automobile front assembly.Such as, described firm banking 111 is fixedly connected with the support chassis of described automobile front assembly, and described strap 113 is pressed in described cradle top.
Preferably, described product placement mechanism 11 also comprises: shutter control assembly, propelling movement parts (all not giving diagram).
Described shutter control assembly is for controlling described shutter opening/closing.Described shutter control assembly is connected with detection device for lamp 123 with described shutter.When described detection device for lamp 123 needs to detect distance light light type, control described shutter control assembly and open shutter, when described detection device for lamp 123 needs to detect dipped beam light type, then control described shutter control assembly and close shutter.Wherein, described shutter control assembly comprises: the solenoid valve be connected with described detection device for lamp 123 and the cylinder of controlled by solenoid valve, shutter opened/closed described in described air cylinder driven.
Described propelling movement parts are for pushing described car light and being fixed on described automobile front assembly.Particularly, described propelling movement parts comprise: mechanical arm and propelling movement cylinder.Car light caught by described mechanical arm, and under the driving pushing cylinder, is fixed on the electrical socket in described assembly by caught car light.
Preferably, described product placement mechanism 11 also comprises: the holding firmware 112 being positioned at described motor 22 both sides, and is positioned at the jack-up cylinder 114 below each described holding firmware 112.
Described car light testing agency 12 is arranged on described car light 21 light emission direction, comprising: camera bellows 122, image-pickup device 121 and detection device for lamp 123.
Described camera bellows 122 is arranged on described car light side and towards described car light 21 light emission direction opening.The width of described camera bellows 122 is slightly larger than the width of described car light, and camera bellows 122 side relative with described opening is the imaging region of light type image.Preferably, between the imaging region and described car light of described camera bellows 122 and at a distance of described car light predeterminable range, be provided with optical lens 124, described optical lens 124 is for being arranged on the lens 124 before described car light.Described predeterminable range is relevant to the focal length of described optical lens 124.Described optical lens 124 is placed in apart from described car light predeterminable range place, effectively can shortens the light type image that described car light irradiates, to reduce the size of checkout equipment.
Described image-pickup device 121 is arranged in described camera bellows 122, the light type image on the imaging region taking described camera bellows 122.Described image-pickup device 121 can be camera, magazine one.Described image-pickup device 121 is fixed on described camera bellows 122 overthe openings by fixed support.
Described detection device for lamp 123 is connected with described image-pickup device 121, for obtain described image capture unit absorb the light type image of described car light irradiation on baffle plate, whether and it is qualified to detect described car light according to the gray scale of described light type image.Wherein, described detection device for lamp 123 is the electronic equipment that can carry out large numerical quantity and logical operation according to the program preset, and its hardware includes but not limited to: host computer, embedded device etc.
Described detection device for lamp 123 comprises: the first control module, light type extraction module, light type detection module (all not giving diagram).
Described first control module is for controlling shutter described in described shutter control assembly opening/closing.
Particularly, described first control module sends to described shutter control module and opens control signal, then described shutter is opened by described shutter control module, the light that described car light is sent all is irradiated to the sidewall of described camera bellows 122 by the optical lens 124 being positioned at described car light front, to form distance light light type.
Described first control module sends closing control signal to described shutter control module, then described shutter is closed by described shutter control module, the some light that described car light is sent is irradiated to the sidewall of described camera bellows 122 by the optical lens 124 being positioned at described car light front, to form dipped beam light type.
Described light type extraction module for obtain described image-pickup device 121 absorb image on described camera bellows 122 side plate, and from described image, extract the corresponding dipped beam/distance light light type image of described car light according to the intensity profile of described image.
Particularly, image captured by described image-pickup device 121 is the image of whole camera bellows 122 side plate, described image is comprised described car light and is irradiated to light type image on described camera bellows 122 side plate by optical lens 124, described light type extraction module is after receiving described image, first extract the grey value profile situation of described image, from described grey value profile, obtain the gray-scale value within the intensity value ranges preset again, then the acquired image-region corresponding to gray-scale value is the dipped beam/distance light light type image of described car light.
Such as, obtained image is first carried out the feature extraction of gray-scale value by described light type extraction module, and carry out distribution statistics according to extracted gray-scale value, the gray-scale value within the intensity value ranges preset is obtained from described grey value profile, then, the dipped beam/distance light light type image corresponding to acquired gray-scale value is obtained by inverse operation.
Described light type detection module is used for the gray scale total value of the profile of extracted dipped beam/distance light light type image and the gray scale total value scope preset to compare, and whether detect described car light according to the result compared qualified.
Particularly, described light type detection module extracts the gray-scale value of the pixel of the profile of described light type image, and got and, if described gray-scale value summation preset gray scale total value within the scope of, then detect described car light qualified, otherwise, then detect described car light defective.Wherein, the gray scale total value corresponding to dipped beam light type preset of described light type detection module is different with the gray scale total value corresponding to distance light light type.Described detection device for lamp 123, according to the control to shutter in described light type extraction module, determines the gray scale total value preset that will compare.
Preferably, after the described shutter of control is closed, described detection device for lamp 123 also comprises: shutter detection module.
Whether described shutter detection module is used for detecting described shutter based on the gray-scale value of the image-region beyond extracted dipped beam light type image qualified.
Particularly, image-region beyond extracted dipped beam light type image is carried out gray-scale value extraction by described shutter detection module, and the mean value of extracted gray-scale value and the threshold value preset are compared, if described mean value is greater than described threshold value, the light transmission then detecting described shutter is qualified, otherwise the light transmission then detecting described shutter is defective.
It should be noted that, it should be appreciated by those skilled in the art that above-mentioned light type detection module, shutter detection module not necessarily perform in order, also as required, first can perform shutter detection module and perform light type detection module again, or perform simultaneously.
Described motor 22 testing agency is connected with the motor 22 be positioned at below described car light, comprising: load elements 131 and detecting device for motor 132.
Described load elements 131 is fixed on described motor 22, and along with motor 22 transverse movement.Wherein, described load elements 131 can be fixed on the weight on described motor 22.Described load elements 131 is provided with stroke inductor, for responding to the distance that described load elements 131 is laterally run.
Preferably, described load elements 131 comprises: be fastened on a pair counterweight on described holding firmware 112, and each counterweight is fixed on the link on described motor 22.Wherein, described link can be rope etc.Each counterweight is arranged a stroke inductor.
Particularly, described counterweight relies on own wt to fix on corresponding described holding firmware 112, and is connected with described linkage part by link.When being positioned at the jack-up cylinder 114 below holding firmware 112 and described counterweight being ejected holding firmware 112, moved along with described motor 22 by the load of the counterweight of jack-up as described motor 22.
Preferably, described load elements 131 also comprises: linkage part.
Described linkage part to fix on car light and is connected with described motor 22.Described linkage part, when described motor 22 transverse movement, moves thereupon.Wherein, described linkage part is provided with described stroke inductor.
Described detecting device for motor 132 is connected with the signal control interface of described motor 22, for the stall position making described motor 22 go to side in the loaded state, control described motor 22 progressively to turn round, and whether detect described motor 22 according to pivotal stepping situation and gyratory directions qualified.Wherein, described detecting device for motor 132 is the electronic equipment that can carry out large numerical quantity and logical operation according to the program preset, and its hardware includes but not limited to: host computer, embedded device etc.Wherein, described detecting device for motor 132 and detection device for lamp 123 can be performed by same host computer.
Described detecting device for motor 132 comprises: the second control module, motor 22 detection module (all not giving diagram).
Described second control module is gone to the stall position of side in the loaded state by current location for controlling described motor 22.Wherein, described stall position refers to that the position of the leftmost side or the rightmost side shifted to by described motor 22.
Particularly, described second control module control described motor 22 to the left or right side move, the travel distance of described motor 22 left/right is sent to described detecting device for motor 132 by stroke inductor in real time that be fixed on described linkage part, when the travel distance that described stroke inductor provides no longer changes, described second control module determines that described motor 22 has moved on to the stall position of corresponding side.
Described motor 22 detection module progressively turns round for controlling described motor 22, and whether detect described motor 22 according to pivotal stepping situation and gyratory directions qualified.
Particularly, described motor 22 is provided with Hall element, described motor 22 detection module is used for progressively turning round according to motor 22 described in the stepping cut to lengthen preset, until receive the Hall element being positioned at described motor 22 send the induction information of car light direct projection, whether and it is qualified to detect described motor 22 based on the judged result whether pivotal number of steps is positioned at default number of steps scope.
Such as, described motor 22 detection module progressively turns round according to motor 22 described in the stepping cut to lengthen preset, until described Hall element sends the induction information that car light is positioned at direct projection angle, then described motor 22 detection module stops revolution based on described induction information, and now, pivotal number of steps and the number of steps scope preset compare by described motor 22 detection module, if exceed default number of steps scope, then determine that described motor 22 is defective, otherwise, then qualified.
Preferably, described motor 22 detection module also progressively turns round for controlling described motor 22, until the pivotal number of steps of described motor 22 reaches default number of steps, then described motor 22 detection module according to the swing away that provides of pivotal number of steps and described stroke inductor from, calculate described motor 22 pivotal unit stepping length, and whether detect described motor 22 based on calculated unit stepping length and the comparative result of the unit stepping length range preset qualified.
Particularly, described motor 22 do not have Hall element, described motor 22 detection module controls described motor 22 and progressively turns round, until reach default number of steps, meanwhile, the pivotal distance of described motor 22 is supplied to described motor 22 detection module by the stroke inductor be positioned on described linkage part, described motor 22 detection module obtains unit stepping length according to described Distance geometry number of steps, judge whether the unit stepping length obtained is positioned within default unit stepping length range again, if the unit stepping length calculated is within the unit stepping length range preset, then determine that described motor 22 is qualified, otherwise, then defective.
As a kind of preferred version, described checkout equipment also comprises: testing result indication mechanism.
Testing result indication mechanism comprises: what be connected with optical detection apparatus with described detecting device for motor 132 makes chapter solenoid valve, and with described beat that chapter solenoid valve is connected beat chapter cylinder.
The structure example of described checkout equipment is as follows:
The structure of described product placement mechanism 11 is: on the operator's console of described checkout equipment, be provided with firm banking 111, the both sides of described firm banking 111 are equipped with holding firmware 112, jack-up cylinder 114 is located at below each holding firmware 112, strap 113 is also provided with above described firm banking 111, and be also provided with the shutter control assembly be connected with described shutter on described operator's console, and the propelling movement parts be connected with described car light;
The structure of described motor 22 testing agency is: be fixed on described car light and have the linkage part of stroke inductor, be connected to described linkage part both sides by rope and be stuck in the counterweight on each described holding firmware 112, and by detecting device for motor 132 that data line is connected with the signal control interface of described motor 22;
The structure of described optical de-tection means is: be also provided with camera bellows 122 at the predeterminable range at a distance of described strap 113, the case actinal surface of described camera bellows 122 is to described strap 113, above the case mouth of described camera bellows 122, image-pickup device 121 is installed, the imaging region that faced by described image-pickup device 121 absorbs, camera bellows 122 boxboard of described case mouth is formed, the middle part of described camera bellows 122 is also provided with optical lens 124 in addition, the optical detection apparatus be connected with described image-pickup device 121;
The structure of testing result indication mechanism is: what be connected with optical detection apparatus with described detecting device for motor 132 makes chapter solenoid valve, and with described beat that chapter solenoid valve is connected beat chapter cylinder.
The course of work of described checkout equipment is:
Automobile front assembly to be detected is fixed between firm banking 111 in described product placement mechanism 11 and strap 113 by staff/mechanical arm, and the linkage part in detecting device for motor 132 is arranged on the motor 22 in described assembly, the counterweight be connected with described link gear fixes on respective holding firmware 112.
When carrying out motor 22 and detecting, the counterweight of top is ejected holding firmware 112 by the jack-up cylinder 114 of side, and under the drive of described motor 22 as the load of described motor 22 along with described motor 22 moves to opposite side, now described detecting device for motor 132 detects described motor 22.After detection completes, described detecting device for motor 132 controls to make chapter solenoid valve so that chapter cylinder is beaten in driving beat Zhang Hege/defective on examining report according to testing result.
When carrying out distance light light type and detecting, in the control of described detection device for lamp 123, shutter plate control assembly opens shutter, and by described propelling movement parts car light pushed and be fixed in bulb mounting groove, then, the light of described car light is gathered the imaging region of camera bellows 122 by the lens 124 be arranged on car light light emission direction, corresponding distance light light type image is absorbed by the image-pickup device 121 in described camera bellows 122, and it is whether qualified by the distance light light type analyzed described distance light light type image and detect described car light by described detection device for lamp 123, upon completion of the assays, described detection device for lamp 123 controls to make chapter solenoid valve so that chapter cylinder is beaten in driving beat Zhang Hege/defective on examining report according to testing result.
When carrying out dipped beam light type and detecting, described detection device for lamp 123 controls shutter plate control assembly and closes shutter, then described shutter shelters from part car light light, described detection device for lamp 123 absorbs corresponding dipped beam light type image by described image-pickup device 121, whether qualified by the distance light light type analyzed described distance light light type image and detect described car light by described detection device for lamp 123, upon completion of the assays, described detection device for lamp 123 controls to make chapter solenoid valve so that chapter cylinder is beaten in driving beat Zhang Hege/defective on examining report according to testing result.
As shown in Figure 2, the present invention also provides a kind of car light for detecting automobile front assembly to detect dress method.Described car light detects dress method and is performed by described detection device for lamp.
In step sl, described detection device for lamp controls shutter described in described shutter control assembly opening/closing.
Particularly, described detection device for lamp sends to described shutter control module and opens control signal, then described shutter is opened by described shutter control module, the light that described car light is sent all is irradiated to the sidewall of described camera bellows by the optical lens being positioned at described car light front, to form distance light light type.
Described detection device for lamp sends closing control signal to described shutter control module, then described shutter is closed by described shutter control module, the some light that described car light is sent is irradiated to the sidewall of described camera bellows by the optical lens being positioned at described car light front, to form dipped beam light type.
In step s3, described detection device for lamp obtain described image-pickup device absorb image on described camera bellows side plate, and from described image, extract the corresponding dipped beam/distance light light type image of described car light according to the intensity profile of described image.
Particularly, image captured by described image-pickup device is the image of whole camera bellows side plate, described image is comprised described car light and is irradiated to light type image on described camera bellows side plate by optical lens, described detection device for lamp is after receiving described image, first extract the grey value profile situation of described image, from described grey value profile, obtain the gray-scale value within the intensity value ranges preset again, then the acquired image-region corresponding to gray-scale value is the dipped beam/distance light light type image of described car light.
Such as, obtained image is first carried out the feature extraction of gray-scale value by described detection device for lamp, and carry out distribution statistics according to extracted gray-scale value, the gray-scale value within the intensity value ranges preset is obtained from described grey value profile, then, the dipped beam/distance light light type image corresponding to acquired gray-scale value is obtained by inverse operation.
In step s 5, the gray scale total value of the profile of extracted dipped beam/distance light light type image and the gray scale total value scope preset compare by described detection device for lamp, and whether detect described car light according to the result compared qualified.
Particularly, described detection device for lamp extracts the gray-scale value of the pixel of the profile of described light type image, and got and, if described gray-scale value summation preset gray scale total value within the scope of, then detect described car light qualified, otherwise, then detect described car light defective.Wherein, the gray scale total value corresponding to dipped beam light type preset of described detection device for lamp is different with the gray scale total value corresponding to distance light light type.Described detection device for lamp, according in step sl to the control of shutter, determines the gray scale total value preset that will compare.
Preferably, after the described shutter of control is closed, described car light detects dress method and also comprises: step S7.
In the step s 7, whether described detection device for lamp to detect described shutter based on the gray-scale value of the image-region beyond extracted dipped beam light type image qualified.
Particularly, image-region beyond extracted dipped beam light type image is carried out gray-scale value extraction by described detection device for lamp, and the mean value of extracted gray-scale value and the threshold value preset are compared, if described mean value is greater than described threshold value, the light transmission then detecting described shutter is qualified, otherwise the light transmission then detecting described shutter is defective.
It should be noted that, it should be appreciated by those skilled in the art that above-mentioned steps S5, S7 and not necessarily performs in order, also as required, first can perform step S7 and perform step S5 again, or perform simultaneously.
The course of work of described detection device for lamp is as follows:
Under the control of described detection device for lamp, the shutter of described car light is opened, the image-pickup device be positioned on described camera bellows absorbs the image on described camera bellows side plate, and be transferred to described detection device for lamp, obtained image is carried out the feature extraction of gray-scale value by described detection device for lamp, and carry out distribution statistics according to extracted gray-scale value, the gray-scale value within the intensity value ranges preset is obtained from described grey value profile, then, the distance light light type image corresponding to acquired gray-scale value is obtained by inverse operation, then, the gray-scale value of the profile of acquired distance light light type image is got and, if the gray scale total value obtained is less than default gray scale total value, then described car light is qualified, otherwise, then defective.
Under the control of described detection device for lamp, the shutter of described car light is closed, the image-pickup device be positioned on described camera bellows reuptakes the image on described camera bellows side plate, and be transferred to described detection device for lamp, obtained image is carried out the feature extraction of gray-scale value by described detection device for lamp, and carry out distribution statistics according to extracted gray-scale value, the gray-scale value within the intensity value ranges preset is obtained from described grey value profile, then, the dipped beam light type image corresponding to acquired gray-scale value is obtained by inverse operation, then, the gray-scale value of the profile of acquired dipped beam light type image is got and, if the gray scale total value obtained is less than default gray scale total value, then described car light is qualified, otherwise, then defective,
Simultaneously, image-region beyond extracted dipped beam light type image is also carried out gray-scale value extraction by described detection device for lamp, and the mean value of extracted gray-scale value and the threshold value preset are compared, if described mean value is greater than described threshold value, the light transmission then detecting described shutter is qualified, otherwise the light transmission then detecting described shutter is defective.
As shown in Figure 3, the present invention also provides a kind of motor detection method.Described motor detection method performs primarily of described detecting device for motor.
In step s 2, described detecting device for motor controls described motor is gone to side in the loaded state stall position by current location.Wherein, described stall position refers to that the position of the leftmost side or the rightmost side shifted to by described motor.
Particularly, described detecting device for motor control described motor to the left or right side move, the travel distance of described motor left/right is sent to described detecting device for motor by stroke inductor in real time that be fixed on described linkage part, when the travel distance that described stroke inductor provides no longer changes, described detecting device for motor determines that described motor has moved on to the stall position of corresponding side.
In step s 4 which, described detecting device for motor controls described motor and progressively turns round, and whether detect described motor according to pivotal stepping situation and gyratory directions qualified.
Particularly, described motor is provided with Hall element, described detecting device for motor progressively turns round according to motor described in the stepping cut to lengthen preset, until described Hall element sends the induction information that car light is positioned at direct projection angle, then described detecting device for motor stops revolution based on described induction information, now, pivotal number of steps and the left/right number of steps scope preset compare by described detecting device for motor, if exceed default number of steps scope, then determine that described motor is defective, otherwise, then qualified.
Preferably, described detecting device for motor controls described motor and progressively turns round, until the pivotal number of steps of described motor reaches default number of steps, then described detecting device for motor according to the swing away that provides of pivotal number of steps and described stroke inductor from, calculate described motor pivotal unit stepping length, and whether detect described motor based on calculated unit stepping length and the comparative result of the left/right unit stepping length range preset qualified.
Particularly, described motor do not have Hall element, described detecting device for motor controls described motor and progressively turns round, until reach default number of steps, meanwhile, pivotal for described motor distance is supplied to described detecting device for motor by the stroke inductor be positioned on described linkage part, described detecting device for motor obtains unit stepping length according to described Distance geometry number of steps, judge whether the unit stepping length obtained is positioned within default unit stepping length range again, if the unit stepping length calculated is within the unit stepping length range preset, then determine that described motor is qualified, otherwise, then defective.
The course of work of described detecting device for motor is as follows, as shown in Figure 3:
Described detecting device for motor controls described motor and moves to the left, until when the displacement being positioned at the stroke inductor on linkage part and providing no longer changes, control described motor to stop continuing to move, and control described motor according to preset stepping length return to the right, when described detecting device for motor receive car light that the Hall element be positioned on motor sends be positioned at the induction information of direct projection angle time, described detecting device for motor stops revolution based on described induction information, and judge described motor to the right pivotal number of steps whether be positioned at default number of steps scope to the right, if exceed default number of steps scope, then determine that described motor moves right defective, otherwise, then determine that described motor moves right qualified,
If described detecting device for motor does not receive car light that Hall element sends when being positioned at the induction information of direct projection angle, described detecting device for motor controls described motor as described above and moves right to stall position, control described motor progressively to return left, when described detecting device for motor control described motor move default number of steps time, number of steps unit of account stepping length described in the revolution Distance geometry that described detecting device for motor provides based on described stroke inductor, and judge described motor left pivotal unit stepping length whether be positioned at default unit stepping length range left, if exceed default unit stepping length range, then determine that described motor is moved to the left defective, otherwise, then determine that described motor is moved to the left qualified.
In sum, the checkout equipment of a kind of automobile front assembly of the present invention and detection method, described checkout equipment arranges load elements on described motor, described motor is made to run left and right in load conditions, and whether detect described motor qualified, so can not only monitoring motor left and right direction adjustment whether in the scope of defined, the surplus that described motor retains can also be detected simultaneously and also meet standard; The intensity profile of image that also utilizes described checkout equipment detects the distance light/dipped beam light type of car light and the light transmission of shutter simultaneously, effectively improves the work efficiency of checkout equipment.So the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (16)
1. a checkout equipment for automobile front assembly, wherein, described automobile front assembly comprises: car light, adjust described car light light shutter, make described car light adjust the motor of lateral angles, it is characterized in that, described checkout equipment at least comprises:
For the product placement mechanism of fixing described automobile front assembly;
Be arranged on the car light testing agency on described car light light emission direction, comprise: be provided with camera bellows towards described car light light emission direction, the image-pickup device of the light type image on the imaging region for taking described camera bellows is set in described camera bellows, the detection device for lamp be connected with described image-pickup device;
The motor testing agency be connected with described motor, comprising: with the load elements that described motor is fixing, and the detecting device for motor be connected with the signal control interface of described motor, and wherein, described load elements is provided with stroke inductor.
2. the checkout equipment of automobile front assembly according to claim 1, is characterized in that, described product placement mechanism comprises: the firm banking on the downside of fixing described automobile front assembly, the strap above fixing described automobile front assembly.
3. the checkout equipment of automobile front assembly according to claim 1, it is characterized in that, described product placement mechanism also comprises: control the shutter control assembly of described shutter opening/closing and pushed by described car light and be fixed on the propelling movement parts on described automobile front assembly.
4. the checkout equipment of automobile front assembly according to claim 1, is characterized in that, described product placement mechanism also comprises: the holding firmware being positioned at described motor both sides, and is positioned at the jack-up cylinder below each described holding firmware.
5. the checkout equipment of automobile front assembly according to claim 4, it is characterized in that, described load elements comprises: be positioned at described motor both sides and fix a pair counterweight on described product placement mechanism, and each counterweight is fixed on the link on described motor.
6. the checkout equipment of automobile front assembly according to claim 1, is characterized in that, described load elements comprises: to fix on car light and with the linkage part of described motors.
7. the checkout equipment of automobile front assembly according to claim 1, is characterized in that, described car light testing agency also comprises: to be arranged between described car light and described imaging region and at a distance of the optical lens of described car light predeterminable range.
8. the checkout equipment of automobile front assembly according to claim 1, is characterized in that, described detection device for lamp comprises:
First control module, for controlling shutter described in described shutter control assembly opening/closing;
Light type extraction module, for obtain described image-pickup device absorb image on described camera bellows side plate, and from described image, extract the corresponding dipped beam/distance light light type image of described car light according to the intensity profile of described image;
Light type detection module, the gray scale total value for the profile by extracted dipped beam/distance light light type image compares with the gray scale total value scope preset, and whether detect described car light according to the result compared qualified.
9. the checkout equipment of automobile front assembly according to claim 8, it is characterized in that, whether described detection device for lamp also comprises: shutter detection module, qualified for detecting described shutter based on the gray-scale value of the image-region beyond extracted dipped beam light type image.
10. the checkout equipment of automobile front assembly according to claim 1, is characterized in that, described detecting device for motor comprises:
Second control module, is gone to the stall position of side in the loaded state by current location for controlling described motor;
Motor detection module progressively turns round for controlling described motor, and whether detect described motor according to pivotal stepping situation and gyratory directions qualified.
The checkout equipment of 11. automobile front assemblies according to claim 10, it is characterized in that, described motor detection module is used for progressively turning round according to motor described in the stepping cut to lengthen preset, until receive the Hall element being positioned at described motor send the induction information of car light direct projection, whether and it is qualified to detect described motor based on the judged result whether pivotal number of steps is positioned at default left/right number of steps scope.
The checkout equipment of 12. automobile front assemblies according to claim 10, it is characterized in that, described motor detection module also progressively turns round for controlling described motor, until the pivotal number of steps of described motor reaches default number of steps, then described motor detection module according to the swing away that provides of pivotal number of steps and described stroke inductor from, calculate described motor pivotal unit stepping length, and whether detect described motor based on calculated unit stepping length and the comparative result of the left/right unit stepping length range preset qualified.
13. 1 kinds utilize the method as described checkout equipment detection automobile front assembly arbitrary in claim 1-12, it is characterized in that, wherein, described automobile front assembly comprises: car light, adjust described car light light shutter, make described car light adjust the motor of lateral angles, described detection method at least comprises:
Car light detects dress method, comprising:
Control shutter described in described shutter control assembly opening/closing;
Obtain described image-pickup device absorb image on described camera bellows side plate, and from described image, extract the corresponding dipped beam/distance light light type image of described car light according to the intensity profile of described image;
The gray scale total value of the profile of extracted dipped beam/distance light light type image and the gray scale total value scope preset are compared, and whether detect described car light according to the result compared qualified.Motor detection method, comprising:
Control described motor is gone to side in the loaded state stall position by current location;
Control described motor progressively to turn round, and whether detect described motor according to pivotal stepping situation and gyratory directions qualified.
The method of 14. detection automobile front assemblies according to claim 13, is characterized in that, described car light detects dress method and also comprises: whether the gray-scale value based on the image-region beyond extracted dipped beam light type image detects described shutter qualified.
The method of 15. detection automobile front assemblies according to claim 13, it is characterized in that, comprise according to the mode that whether qualified pivotal stepping situation and gyratory directions detect described motor: progressively turn round according to motor described in the stepping cut to lengthen preset, until receive the Hall element being positioned at described motor send the induction information of car light direct projection, whether and it is qualified to detect described motor based on the judged result whether pivotal number of steps is positioned at default left/right number of steps scope.
The method of 16. detection automobile front assemblies according to claim 13, it is characterized in that, comprise according to the mode that whether qualified pivotal stepping situation and gyratory directions detect described motor: control described motor and progressively turn round, until the pivotal number of steps of described motor reaches default number of steps, then described detecting device for motor according to the swing away that provides of pivotal number of steps and described stroke inductor from, calculate described motor pivotal unit stepping length, and whether detect described motor based on calculated unit stepping length and the comparative result of the left/right unit stepping length range preset qualified.
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| CN201310433205.4A CN104458208B (en) | 2013-09-22 | 2013-09-22 | Detection device and detection method of automobile headlamp assembly |
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| CN106524938A (en) * | 2016-12-30 | 2017-03-22 | 重庆高威汽车科技有限公司 | Intelligent vehicle clamp detection system |
| CN106678744A (en) * | 2016-11-10 | 2017-05-17 | 浙江吉利控股集团有限公司 | Automatic light adjusting mechanism of automobile headlight |
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| JP2001050862A (en) * | 1999-08-05 | 2001-02-23 | Olympus Optical Co Ltd | Measuring apparatus for aberration of optical-pickup objective lens |
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