Summary of the invention
In order to solve that the technical issues of automatic fake-licensed car detects can not be carried out to by vehicle in the prior art, the present invention is mentionedA kind of passing vehicle deck verifying bench is supplied.
The present invention at least has the important inventive point of following two:
(1) using the Vehicle inspection forms of U-shaped closing transparent glass structure, various customizations is inside set and examine equipment to logical every timeThe vehicle crossed carries out the vehicle's contour detection of automatic mode, improves the efficiency of Vehicle inspection；
(2) impulse disturbances in image and interference of pulsing are identified respectively, it is each in described image to obtain respectivelyEach pulsation interference signal in a pulse interference signal and described image, to the amplitude of above-mentioned interference signal be compared with forThe filtering mechanism that described image selection is adapted with picture material, to prevent image filtering to be lack of pertinence.
According to an aspect of the present invention, a kind of passing vehicle deck verifying bench is provided, the platform includes:
Inspection window body case closes transparent glass structure for a U-shaped, the lower section of traffic indicator is arranged in, for encapsulatingFor the electronic equipment of Vehicle inspection, each traffic indicator is separately positioned on each road middle section；Car license recognition equipment, settingLicense plate number in inspection window body case, for the vehicle based on image recognition pattern-recognition below.
More specifically, in the passing vehicle deck verifying bench, further includes:
Vehicle extract equipment is arranged in inspection window body case, connect with the car license recognition equipment, described for receivingLicense plate number, and corresponding vehicle model is searched out from network based on the license plate number；Engine sound identification apparatus, setting existThe setting position of traffic indicator, the amplitude of the car engine sound for incuding ambient sound, and in ambient sound are more than pre-If when amplitude, issuing trigger collection signal.
More specifically, in the passing vehicle deck verifying bench, further includes:
Lower section acquires equipment, is arranged in inspection window body case, the side of the engine sound identification apparatus is arranged in, is used forWhen receiving the trigger collection signal, image data acquiring is carried out to vehicle below, to obtain corresponding lower section vehicleImage；Image analysis equipment is connect, for receiving the lower section vehicle image, under described with lower section acquisition equipmentImpulse disturbances and pulsation interference in square vehicle image are identified respectively, each in the lower section vehicle image to obtain respectivelyEach pulsation interference signal in a pulse interference signal and the lower section vehicle image.
More specifically, in the passing vehicle deck verifying bench, further includes:
Reference value extract equipment is connect with described image analytical equipment, each in the lower section vehicle image for receivingEach pulsation interference signal in a pulse interference signal and the lower section vehicle image, and determine in the lower section vehicle imageEach pulse interference signal each amplitude in maximum value using as impulse disturbances reference value, and determine the lower section vehicleMaximum value in each amplitude of each pulsation interference signal in image is to interfere reference value as pulsation；Switching control is setIt is standby, it is connect with the reference value extract equipment, for being more than or equal to pulsation interference reference in the impulse disturbances reference valueWhen value, the first trigger signal is issued, and is also used to when the impulse disturbances reference value is less than pulsation interference reference value,Issue the second trigger signal；Pulse eliminating equipment is connect with described image analytical equipment and the switch device respectively, is usedIn when receiving first trigger signal, start the following processing to each pixel in the lower section vehicle image:Using each pixel in the lower section vehicle image as processing pixel, is determined and executed based on the impulse disturbances reference valueThe area of the filter window of median filtering is filtered place using pixel value of the filter window to the processing pixelReason；The pulse eliminating equipment is also used to the filtering processing based on the pixel value of each pixel in the lower section vehicle imageAs a result corresponding first filtering image is exported；Pulse eliminating equipment, respectively with described image analytical equipment and the switching controlEquipment connection, for starting the weighted mean filter to the lower section vehicle image when receiving first trigger signalProcessing, to obtain and export corresponding second filtering image；Image sink devices, respectively with the pulse eliminating equipment and describedEliminating equipment of pulsing connects, for scheming by first filtering image or second filtering image, and by first filteringPicture or second filtering image are exported as the corresponding image that collects of the lower section vehicle image；Power supply equipment, respectivelyIt is connect with the switch device, the pulse eliminating equipment and the pulsation eliminating equipment；Contours segmentation equipment, setting existIn inspection window body case, connect with described image sink devices, for receive it is described collect image, based on default car body gray scale pointCloth range from it is described collect each car body pixel is extracted in image, the car body wheel that each car body pixel is fitted toWide subgraph from it is described collect in image split；Consistency check equipment, be arranged in inspection window body case, respectively with instituteIt states vehicle extract equipment to connect with the contours segmentation equipment, the vehicle model for being exported based on the vehicle extract equipment is obtainedTake corresponding standard car body pattern, the standard car body pattern matched with the car body profile subgraph, when matching atWhen function, issues profile and pass through signal；Wherein, it in the consistency check equipment, when matching unsuccessful, issues profile and does not lead toCross signal.
Specific embodiment
The embodiment of passing vehicle deck verifying bench of the invention is described in detail below with reference to accompanying drawings.
Intelligent transportation is established on the basis of perfect information network.Traffic participant by equipment on road, Che Shang,On transfer stop, on parking lot and the sensor and transmission device of Meteorological Center, the real-time of various regions is provided to traffic information centerTraffic information；After ATIS obtains these information and passes through processing, Traffic Information, public friendship are provided to traffic participant in real timeCommunication breath, transfer information, traffic weather information, parking lot information and other information relevant to trip；Traveler is according to thisA little information determine the trip mode of oneself, selection route.Further, when being equipped with automatic positioning and navigation system on vehicle,The system can help driver to automatically select travel route.
In order to overcome above-mentioned deficiency, the present invention has built a kind of passing vehicle deck verifying bench, can effectively solve the problem that phaseAnswer technical problem.
Fig. 1 is the structure that equipment is acquired according to the lower section of the passing vehicle deck verifying bench shown in embodiment of the present inventionSchematic diagram.Wherein, 1 is control panel, and 2 be closed downwards shell, and 3 close shell for top, and 4 be connector.
The passing vehicle deck verifying bench shown according to an embodiment of the present invention includes:
Inspection window body case closes transparent glass structure for a U-shaped, the lower section of traffic indicator is arranged in, for encapsulatingFor the electronic equipment of Vehicle inspection, each traffic indicator is separately positioned on each road middle section；
Car license recognition equipment is arranged in inspection window body case, for the vehicle based on image recognition pattern-recognition belowLicense plate number.
Then, continue that the specific structure of passing vehicle deck verifying bench of the invention is further detailed.
In the passing vehicle deck verifying bench, further includes:
Vehicle extract equipment is arranged in inspection window body case, connect with the car license recognition equipment, described for receivingLicense plate number, and corresponding vehicle model is searched out from network based on the license plate number；
The setting position of traffic indicator is arranged in engine sound identification apparatus, for incuding ambient sound, and the sound aroundWhen the amplitude of car engine sound in sound is more than default amplitude, trigger collection signal is issued.
In the passing vehicle deck verifying bench, further includes:
Lower section acquires equipment, is arranged in inspection window body case, the side of the engine sound identification apparatus is arranged in, is used forWhen receiving the trigger collection signal, image data acquiring is carried out to vehicle below, to obtain corresponding lower section vehicleImage；
Image analysis equipment is connect, for receiving the lower section vehicle image, under described with lower section acquisition equipmentImpulse disturbances and pulsation interference in square vehicle image are identified respectively, each in the lower section vehicle image to obtain respectivelyEach pulsation interference signal in a pulse interference signal and the lower section vehicle image.
In the passing vehicle deck verifying bench, further includes:
Reference value extract equipment is connect with described image analytical equipment, each in the lower section vehicle image for receivingEach pulsation interference signal in a pulse interference signal and the lower section vehicle image, and determine in the lower section vehicle imageEach pulse interference signal each amplitude in maximum value using as impulse disturbances reference value, and determine the lower section vehicleMaximum value in each amplitude of each pulsation interference signal in image is to interfere reference value as pulsation；
Switch device is connect with the reference value extract equipment, be used to be greater than in the impulse disturbances reference value etc.When reference value is interfered in the pulsation, the first trigger signal is issued, and is also used to be less than institute in the impulse disturbances reference valueWhen stating pulsation interference reference value, the second trigger signal is issued；
Pulse eliminating equipment is connect with described image analytical equipment and the switch device respectively, for receivingWhen to first trigger signal, start the following processing to each pixel in the lower section vehicle image: under describedEach pixel is determined based on the impulse disturbances reference value as processing pixel and executes median filtering in square vehicle imageFilter window area, using the filter window to it is described processing pixel pixel value be filtered；The arteries and veinsIt rushes eliminating equipment and is also used to the filtering processing result output based on the pixel value of each pixel in the lower section vehicle imageCorresponding first filtering image；
Pulsation eliminating equipment, connect, for receiving respectively with described image analytical equipment and the switch deviceWhen to first trigger signal, start and the weighted mean filter of the lower section vehicle image is handled, to obtain and output phaseThe second filtering image answered；
Image sink devices are connect with the pulse eliminating equipment and the pulsation eliminating equipment respectively, and being used for will be describedFirst filtering image or second filtering image, and using first filtering image or second filtering image as described inLower section vehicle image is corresponding to collect image output；
Power supply equipment is set with the switch device, the pulse eliminating equipment and the pulsation removal respectivelyStandby connection；
Contours segmentation equipment is arranged in inspection window body case, connect with described image sink devices, described for receivingCollect image, based on default car body intensity profile range from it is described collect each car body pixel is extracted in image, will be describedThe car body profile subgraph that each car body pixel is fitted to from it is described collect in image split；
Consistency check equipment, be arranged in inspection window body case, respectively with the vehicle extract equipment and the profileSplitting equipment connection, the vehicle model for being exported based on the vehicle extract equipment obtain corresponding standard car body pattern, willThe standard car body pattern is matched with the car body profile subgraph, when successful match, is issued profile and is passed through signal；
Wherein, it in the consistency check equipment, when matching unsuccessful, issues profile and does not pass through signal.
In the passing vehicle deck verifying bench: the power supply equipment is receiving first trigger signalWhen, the pulse eliminating equipment is controlled to make it into operational mode, controls the pulsation eliminating equipment to make it into suspend modeMode.
In the passing vehicle deck verifying bench: the power supply equipment is receiving second trigger signalWhen, the pulsation eliminating equipment is controlled to make it into operational mode, controls the pulse eliminating equipment to make it into suspend modeMode.
In the passing vehicle deck verifying bench: in the pulse eliminating equipment, the impulse disturbances reference valueBigger, the area of the filter window of the execution median filtering determined is bigger.
In the passing vehicle deck verifying bench: the engine sound identification apparatus is also used to the vehicle in ambient soundWhen the amplitude of engine sound is less than or equal to the default amplitude, acquisition disable signal is issued.
In the passing vehicle deck verifying bench: the engine sound identification apparatus includes sound sensing unit, amplitudeDetection unit, data storage cell and signal transmitting unit.
In addition, the contours segmentation lectotype selection is GAL device.General array logic chip (Generic ArrayLogic www.husoon.com) device be that LATTICE company in 1985 invents at first erasable remove, may be programmed, is settableThe PLD of encrypted bits.Representative GAL chip has GAL16V8, GAL20, both GAL can almost emulate all typesPAL device.In practical application, GAL device has 100% compatibility to PAL device simulation, so GAL almost can be completeIt instead of PAL device, and may replace most of SSI, MSI digital integrated electronic circuit, thus be widely applied.The maximum of GAL and PALThe difference is that the export structure of GAL can be defined by the user, it is a kind of programmable export structure.
Using passing vehicle deck verifying bench of the invention, in the prior art can not be automatic to being carried out by vehicleThe technical issues of fake-licensed car detects inside is set various customization inspections and is set using the Vehicle inspection forms of U-shaped closing transparent glass structureThe standby vehicle's contour for carrying out automatic mode to the vehicle passed through every time detects, and improves the efficiency of Vehicle inspection；Particularly importantIt is in specific image processing mode, the impulse disturbances in image and interference of pulsing to be identified respectively, to obtain respectivelyEach pulse interference signal in described image and each pulsation interference signal in described image, to the width of above-mentioned interference signalThe filtering mechanism that value is compared to be adapted for described image selection with picture material, to prevent image filtering shortage to be directed toProperty；To solve above-mentioned technical problem.
It is understood that although the present invention has been disclosed in the preferred embodiments as above, above-described embodiment not toLimit the present invention.For any person skilled in the art, without departing from the scope of the technical proposal of the invention,Many possible changes and modifications all are made to technical solution of the present invention using the technology contents of the disclosure above, or are revised asWith the equivalent embodiment of variation.Therefore, anything that does not depart from the technical scheme of the invention are right according to the technical essence of the inventionAny simple modifications, equivalents, and modifications made for any of the above embodiments still fall within the range of technical solution of the present invention protectionIt is interior.