CN103914898A - Vehicle exit and entry control system and control method - Google Patents
Vehicle exit and entry control system and control method Download PDFInfo
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- CN103914898A CN103914898A CN201310006782.5A CN201310006782A CN103914898A CN 103914898 A CN103914898 A CN 103914898A CN 201310006782 A CN201310006782 A CN 201310006782A CN 103914898 A CN103914898 A CN 103914898A
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Abstract
The invention discloses a vehicle exit and entry control system and a control method, and the system comprises a photographic unit; an image cache unit which is electrically connected to the photographic unit; a vehicle license plate identification unit which is electrically connected with the image cache unit; a verification unit which is electrically connected to the vehicle license plate identification unit; and a gate control unit which is electrically connected with the verification unit; the vehicle license plate identification unit obtains continuous images stored by the image cache unit to perform processing of each image, by scanning each image of the continuous images and after edge-tracing treatment based on features of a vehicle license plate, the position of the vehicle license plate of each vehicle is judged, and the vehicle number is identified; the verification unit verifies the obtained vehicle number of each vehicle by comparison with a list; and after acquisition of entry permit information of the verification unit on each vehicle, the gate control unit controls open and close of a gate of a gateway according to the gateway which each vehicle enters to. According to the vehicle exit and entry control system and a method signal, the vehicle passing the verification can smoothly and directly drive in when entering the gateway without stopping for further verification.
Description
Technical field
The present invention is that a kind of vehicles while passing enters control system and method for control, particularly provides and utilizes wide-angle camera shooting to enter vehicle the car plate of identification simultaneously, and then a kind of control system and the method for control of control gate.
Background technology
Known technology provides the mode of various parking lots vehicles while passing management, its object is nothing more than being cause for safety, and checking enter vehicle identity, particularly private parking place, general management method comprises manpower judgement, the hand-held identification proof of driver, vehicle license plate shooting identification, and may apply the way to manage of RFID tag (RFID).
Known technology can be with reference to No. I246321st, the TaiWan, China patent (day for announcing: 2005/12/21) containedly utilize the long-range technology with selecting video monitoring system as parking lot management, utilize Video Supervision Technique as crossing monitoring, gate inhibition's monitoring, parking lot monitoring etc., major technique is to utilize the mode of filming image, the picture of monitoring occasion is stored in specific storage device, in the time having any situation to produce, can have access to, or provide personnel to carry out telemonitoring by webpage mode.
Separately there is known technology as No. I271667 (day for announcing: 2007/01/21) of TaiWan, China patent, it discloses the unmanned managing system of car parking of a kind of middle controlled, namely in the time judging that vehicle arrives, take automobile image identification car plate, whether compare whereby vehicle and be allowed to enter, this system mainly utilizes car plate automatic Identification technology to reach the object of vehicle management.According to disclosed content, when vehicle is in the time passing in and out parking lot, can be detected vehicle by wagon detector arrives, by video camera, vehicle is carried out to capture to carry out number plate recognition afterwards, the result of number plate recognition will be compared with the qualified vehicle data storehouse of image identification computing machine, as the basis for estimation of whether opening fence.
Mostly the regulation model that known technology enters for parking lot vehicles while passing is that image application is taken, number plate recognition, opened and closed by hand-held gate telepilot control gate by managerial personnel's control gate or driver afterwards, also having above-mentioned patent is to enter gateway when vehicle, enters parking lot by starting gate after identification card identification identity.
Summary of the invention
Be different from known technology enters management technology at parking lot vehicles while passing, the present invention proposes a kind of vehicles while passing and enters control system and method, wherein employing one is there is to the video camera of wide-angle photography function, shooting enters the vehicle in vehicular control place and carries out long-range identification car plate, the gateway time that this vehicle of sensing enters again afterwards, and energy starting gate in time allows vehicle needn't just can enter smoothly vehicular control place under the situation of stagnation of movement.In addition, if this vehicle cannot, by checking, cannot enter smoothly, or other authentication modes of can arranging in pairs or groups enter vehicular control place after number plate recognition.
According to embodiment, vehicles while passing described in the invention enters control system and mainly includes a camera unit, camera unit can be one especially can contain multiple wide-angle cameras that enter the track before gateway, or the video camera that can be combined by multiple image acquisition units, object is to take the continuous image of the scope that comprises one or more track.Continuous image then can be temporary in image buffer unit.
After obtaining the image of track scope, vehicles while passing enters control system can carry out an image processing, utilizes a number plate recognition unit to seek through one scan car plate the identification license number of after process on limit, judging each vehicle to each map sheet (frame) in continuous image.
Afterwards, the car plate picking out to verify obtained each vehicle license number, particularly can verify whether vehicle allows to enter by the authentication unit comparison list that enters control system through vehicles while passing before vehicle enters gateway.Then by intrasystem gate control module obtain authentication unit to the access admittance information of each vehicle after, the gateway entering according to each vehicle, with the gate opening of controlling gateway with close.Specifically, the vehicular control program producing according to said system, can allow and arrive before corresponding gate starting gate by one or more vehicle of checking and allow current, vehicle can stop just entering, being different from known technology needs stagnation of movement before gate, then the mode that just can enter after verifying.
In other words, the invention provides a kind of vehicles while passing and enter control system, described control system comprises: a camera unit, comprises one or more continuous images that enter the track scope before gateway in order to take; One image buffer unit, is electrically connected this camera unit, in order to store by the captured continuous image of this camera unit; One number plate recognition unit, be electrically connected this image buffer unit, obtain stored continuous image by this image buffer unit, carry out an image processing, through scanning each width image of this continuous image, judge car plate position the identification license number of each vehicle according to vehicle license plate characteristic to seek after process on limit; One authentication unit, is electrically connected this number plate recognition unit, and comparison one list is to verify obtained each vehicle license number; And a gate control module, be electrically connected this authentication unit, through obtain this authentication unit to the access admittance information of each vehicle after, the gate opening of this gateway of gateway control entering according to each vehicle with close; Wherein, this authentication unit has completed license number identification and checking before this one or more vehicle arrives corresponding gate, and starting gate permission is current before arriving corresponding gate by this one or more vehicle of checking for this gate control module.
According to embodiment, above-mentioned camera unit can be the camera being made up of multiple image acquisition units, and recycling one image combining unit seamless combination is by multiple images of the obtained different visual angles of these image acquisition units.
Above-mentioned number plate recognition unit draws behind each vehicle license plate position, can drive camera unit to continue to take each vehicle license plate to follow the trail of the mode of car plate, until license number identification completes.
In addition, if system is located at the place of multiple gateway, need to learn which gateway vehicle enters, therefore vehicles while passing enters the gateway that control system can utilize the set each vehicle of vehicle perception unit perception of each gateway to enter, to confirm which gate should open or close.
According to invention the disclosed embodiments, vehicles while passing enters the step that method of control comprises to be had, first obtain that camera unit is captured comprises that one or more enters the continuous image of the track scope before gateway, then in continuous image, judge and the while each vehicle license plate of identification position, and the each car plate content of identification, then carry out checking according to each car plate content, to confirm the access admittance of one or more vehicle, after the gateway that each vehicle enters after testing, confirm to open the gate of corresponding gateway.
In other words, the invention provides a kind of vehicles while passing and enter method of control, described method of control comprises: obtain that a camera unit is captured comprises that one or more enters the continuous image of the track scope before gateway; By the each vehicle license plate of identification position in this continuous image, and the each car plate content of identification; Carry out checking according to each car plate content, to confirm the access admittance of this one or more vehicle; And detect the gateway that each vehicle enters, to open gate that should gateway; Wherein, this verification step has completed license number identification and checking before this one or more vehicle arrives corresponding gate, and before this one or more vehicle that empirical tests is passed through arrives corresponding gate, starting gate permission is current.
According to above-mentioned steps, verification step has completed license number identification and checking before one or more vehicles arrive corresponding gate, the vehicle that therefore can make empirical tests pass through arrives before corresponding gate starting gate and allows currently, and therefore vehicle can just can enter without to be verified after stagnation of movement etc.
According to embodiment, vehicles while passing of the present invention enters control system and method for control, the mode of number plate recognition is that basis is by the captured image of camera unit, utilize scanning full width and the mode of seeking limit, feature (if obvious edge is with significantly alphabetical) according to car plate obtains car plate position, and the car plate position that continues to follow the trail of the vehicle picking out, until car plate content identification goes out.
Brief description of the drawings
Fig. 1 is that the scene that vehicles while passing of the present invention enters control system embodiment mono-arranges figure;
Fig. 2 is that the scene that vehicles while passing of the present invention enters control system embodiment bis-arranges figure;
Fig. 3 is that the scene that vehicles while passing of the present invention enters control system embodiment arranges schematic diagram;
Fig. 4 is the associated schematic diagram in each unit that vehicles while passing of the present invention enters control system;
Fig. 5 is the wide-angle photography module diagram that is applied to vehicles while passing of the present invention and enters control system;
Fig. 6 is each unit module embodiment schematic diagram that vehicles while passing of the present invention enters control system;
Fig. 7 is the embodiment step that vehicles while passing of the present invention enters method of control;
Fig. 8 is the embodiment step that vehicles while passing of the present invention enters number plate recognition in method of control.
[main element description of reference numerals]
Embodiment
The present invention discloses a kind of vehicles while passing and enters control system, and a kind of vehicles while passing enters method of control, technical characteristics is, this vehicles while passing enters control system and is arranged on a vehicular control place, as parking lot, there are the place or the buildings etc. that enter and exit gate, and need especially the place that just can enter after identification, in the time having this turnover entrance of vehicle approach, system proposed by the invention is provided with a video camera, can obtain and enter the car plate position of vehicle and pick out car plate content (as license number), in the time not yet entering gateway, complete checking, therefore the vehicle by checking can be because of early the time have been confirmed to allow to enter, the first starting gate of gateway (having the embodiment of multiple gateways) that system enters basis, vehicle can be stopped just can directly sailing into.
Fig. 1 is that the scene that vehicles while passing of the present invention enters control system embodiment mono-arranges figure.
As shown in Figure 1, wherein show vehicle 10, can be the various vehicles that are provided with number plate recognition, vehicle 10 is provided with car plate 101, the video camera 103 coverage 12(that system provides are as indicated with dotted line the scope containing in Fig. 1) contain the track that vehicle enters, track is herein defined as and enters the front vehicle route of gateway (position before gate), therefore this video camera 103 can be at vehicle have been obtained image when the position beyond the certain distance, and continuation confirms to have the image of vehicle license plate according to the feature of car plate, obtain again car plate position and give identification, the feature of car plate be mainly obvious frame and in the middle of have certain letter, these features can obtain car plate position by scanning a continuous image fast, transportable feature is confirmed not background video again.
According to embodiment mono-, when gateway 105 before vehicle enters gate 109, if identification car plate before proving program complete, and confirm that this vehicle is to allow the vehicle that enters, can enter the front starting gate 109 of gateway 105 at vehicle, vehicle can directly be sailed into smoothly, and need not stop waiting for the result completely, or before stopping at gate 109, utilize known technical identification identity, identification card, RFID tag (RFID) as conventional in known technology.
Vehicles while passing enters control system can be provided with induction through the vehicle perceptron 14 of vehicle, particularly at multiple gateway 105(as shown in Figure 2 on the ground of gateway 105) system in need to know that by vehicle perceptron 14 which bar the gateway 105 that vehicle will enter is.The object of vehicle perceptron 14 is that perception vehicle arrives the time of gateway, the mode using comprises utilizes inductive coil, the pressure-sensitive circuit etc. of being located at ground, do not get rid of in embodiments of the present invention and use other perceptrons, such as infrared ray blocking induction, radio influence etc.
Enter in control system at this vehicles while passing, in the time having vehicle to enter the track before gateway 105, because video camera 103 continues (or starting by induction) floor picture, can grasp fast the vehicle entering, and and then carries out image processing find car plate position, and provide the function of number plate recognition.Afterwards, through confirming that the number-plate number is the list that allows to enter this vehicular control place, drive gate driver 107 to open as fence type gate 109 opportune moment, this proving program can allow vehicle can in the situation that need not stopping, entering vehicular control place.
In the present embodiment, because be only provided with a gateway 105, therefore can be at vehicle by when checking starting gate 109, but still can adopt above-mentioned vehicle perceptron 14 to confirm that vehicle enters the opportunity of gateway 105, at optimal time starting gate 109.The embodiment of gate 109 comprises the gate of fence type, also can be and be located at dog catch, door on the ground, or other has the mode that stops vehicle effect.
Then as shown in Figure 2, Fig. 2 is that the scene that vehicles while passing of the present invention enters control system embodiment bis-arranges figure.
In the present embodiment, vehicle 20 is provided with car plate 201, has entered equally the coverage 22 of video camera 203, and the front and back image of taking by processing video camera 203 has been judged mobile object and entered coverage 22, can find by the technology of image edge searching the position of car plate 201, and carry out identification.
In the present embodiment, vehicular control place is provided with two gateways 207,208, and is respectively equipped with two vehicle perceptrons 24,26, but this number is not for limiting implementation content of the present invention.Two vehicle perceptron 24,26 fundamental purposes are which the gateway 207,208 that sense vehicle 20 will enter is.
Content as shown in Figure 1, the coverage 22 that enters video camera 203 when vehicle 20, the image processor system of system will draw car plate 201 positions, and identification car plate 201 numbers, empirical tests is crossed and is allowed the vehicle 20 entering to enter above-mentioned vehicle perceptron 24, when 26 sensing range, can judge the gateway 207 or 208 entering, then produce gate driver corresponding to control signal control 209 or 210 starting gates 211 or 212.
In above-mentioned described embodiment, known the present invention first verifies that by the mode such as filming image, identification whether enter vehicle is allowed to enter vehicular control place, therefore can verify before vehicle enters gateway.Empirical tests is passed through, except sending suitable prompting message, can also be near vehicle approach gateway time, starting gate, vehicle can directly be entered in the situation that need not stopping, except simpler save from damage necessary authentication program, or province's motor vehicle fuel, the mode that saves time.
Fig. 3 is that the scene that vehicles while passing of the present invention enters control system embodiment arranges schematic diagram, this embodiment shows the vehicle 30 that is provided with car plate 301 and enters the illustration of a turnover entrance, when vehicle 30 enters, first judge by the vehicle verification system 307 of carrying out as above-mentioned proving program whether vehicle 30 is allowed to enter, the result of checking can produce a signal that whether drives the gate control module 305 that control gate 310 opens and closes, if by checking, the information producing can drive gate control module 305 to drive gate driver 309 and starting gate 310; If not by checking, can not produce any signal to gate control module 305, and produce other information warning.
In this embodiment, vehicle 30 by checking will be by 303 perception of vehicle perceptron, therefore can produce signal notice gate control module 305, gate control module 305 produces because also obtain vehicle verification system 307 information being verified, therefore can in the time that vehicle 30 is perceived, drive gate driver 309 starting gates 310, and will in vehicle 30 completely by time closed shutter 310.
Enter control system at the disclosed vehicles while passing of the embodiment of the present invention, in order to reach the contained technology of the present invention, to be provided with the various functional modules that realized with hardware circuit or software program, can consult shown in Fig. 4, Fig. 4 is the associated schematic diagram in each unit that vehicles while passing of the present invention enters control system.
Fig. 4 shows a vehicles while passing and enters control core 40, this is the processing core of a signal, comprise and can utilize the settling mode of various software and hardwares to carry out each circuit, software signal, vehicles while passing enters the various functional modules of control core below 40 and can show respectively as gate control module 401, vehicle perception unit 403, number plate recognition unit 405, camera unit 407, storage element 409, authentication unit 411 and vehicle aided verification unit 413.
According to embodiment, camera unit 407 enters control core 40 with the vehicles while passing of processing core as signal and is electrically connected, can be especially the video camera of taking wide viewing angle, can whole day or by taking the continuous image in one or more tracks (entering the road surface before gateway) after triggering, and coordinate image processing to obtain mobile object.System of the present invention will be carried out number plate recognition by circuit design or software approach, as the number plate recognition unit 405 of icon.
Car plate can be found according to the mode of the characteristic use image processing of car plate in number plate recognition unit 405, and pick out the number-plate number.Wherein number plate recognition is according to the image feature of car plate, such as a virtual object box, from the head of each frame to tail sequential scanning, when scanning in ad-hoc location, object box draws a square, there is significant frame, also can coordinate the pure color background color feature of (as white, yellow, green etc.), and obvious English and digital combination license number, can judge this doubtful is a car plate, then can obtain car plate position by the technology of seeking limit (edge finder).The technology that can adopt known image identification according to the identification of a characteristics of objects (as car plate) location and license number letter, does not repeat at this.
Afterwards, authentication unit 411 enters control core 40 from vehicles while passing and obtains the information of car plate, and the consideration of saving from damage if having will be compared with default list, confirms whether this vehicle exists in a white list, judges whether to allow to enter.The result that produces afterwards checking, vehicles while passing enters control core 40 control gate control module 401 is started to gate, or closed shutter.Vehicles while passing enters the electrical chain of control core 40 and is connected to a storage element 409, can be in order to contents such as the image of storage car (for inquiry in the future), model data storehouse, lists.
If system is located at entering and exiting of multiple gateway, can confirm that vehicle enters gateway according to vehicle perception unit 403, reinform gate control module 401 and open corresponding gate.If above-mentioned number plate recognition is unsuccessful, driver still can enter vehicular control place by another ancillary method of system, show as vehicle aided verification unit 413, the technology of aided verification can verification technique as known in some, as is loaded with card or the device etc. of radio frequency recognition volume label; Or, when vehicles failed is by when checking, represent that vehicle do not list in list or list in a blacklist, but driver is the still people for allowing to enter, the second verification mode that such situation still can system provides enters vehicular control place.
It is worth mentioning that, with other known systematic comparisons, the technology of general image identification causes identification speed slower because being limited to the calculation process ability of system, thereby cannot meet the demand of real-time and Fast Identification, so need various vehicle perceptrons to assist, to reduce the burden of system.But it is the direct whole image map sheet of scanning that vehicles while passing of the present invention enters number plate recognition mode that control system adopts, utilize the significant feature of car plate directly to obtain car plate position wherein content of identification, without first judging vehicle vehicle originally in finding out car plate, therefore, on image is processed, omitted many computing work, General System is enough to process the presentation content of video streaming (more than 25 width per second) according to the method.System is always all in detecting under the state of car plate.Therefore,, according to above-mentioned technical characteristic, vehicles while passing of the present invention enters control system can process the number plate recognition of multilane.
Vehicles while passing of the present invention enters video camera that control system adopts and is preferably a video camera with wide viewing angle camera lens, and object is to take wider scope, especially for the turnover entrance that is provided with multiple gateway.Separately there is embodiment can consult the contained wide-angle photography module diagram of Fig. 5.
As shown in Figure 5, this embodiment shows a camera unit 50, is wherein provided with multiple image acquisition units 501,502,503, and the circuit unit of image capture, as CCD, CMOS etc., is not even got rid of known analog camera.In the present embodiment, the track of different angles can be separately taken in the design of multiple image acquisition units 501,502,503, and can obtain the coverage compared with wide viewing angle by the technology of image combination, as being electrically connected the image combining unit 51 of camera unit 50 in Fig. 5.
The image combining unit 51 of this embodiment seamlessly combines the image of the multiple different visual angles that obtain from camera unit 50 by image by the relevance of image edge, relevance comprises synchronous image, the object pixel of image edge etc. according to the time, therefore can produce the effect that expands visual angle.To take whereby the image in multiple tracks in the embodiment of the present invention.
The image of processing through image combining unit 51 will change and be stored to buffer unit 53, provide number plate recognition unit 55 to carry out Real-time Vehicle License Plate image identification, utilization is sought limit technology and is obtained behind car plate position, the means of following the trail of by car plate again continue identification, until complete number plate recognition, then list comparison or registration are carried out in the license number empirical tests unit 57 drawing.
Then describe vehicles while passing of the present invention by the function square of various unit modules enters control system to Fig. 6, and system includes wide-angle photography module 601, image buffer unit 603, database 605, number plate recognition unit 609, authentication unit 611, list 613, message unit 615, gate control module 617 and the vehicle perception unit 619 of mutual electric connection as shown in Figure 6.
Wherein the realization of wide-angle photography module 601 as above-mentioned with the video camera of a wide-angle lens, or by produce the camera unit of the function of wide viewing angle in conjunction with multiple image acquisition unit institute pick-up image, its objective is in order to take and comprise one or more continuous images that enter the track scope before gateway, these continuous images are stored to database 605 for have access in the future by first keep in/being stored to an image buffer unit 603, comprising.
Then, system will obtain continuous image in the number plate recognition unit 609 self imaging buffer units 603 of realizing with software program or circuitry means, and carries out number plate recognition.Particularly carrying out image according to the feature of car plate itself scans by width (frame), can obtain the image of the letters such as frame described above, shape, color, English/numeral, pick out car plate position and license number, as utilize a kind of technology of seeking limit technical finesse to judge car plate position, then pick out again license number.Carry out list 613 with authentication unit 611 afterwards and compare, to verify the whether vehicle as being allowed to enter of this vehicle.List 613 can be stored in above-mentioned database 605.According to one of embodiment, this routine number plate recognition unit 609 is after drawing each vehicle license plate position, can drive above-mentioned wide-angle photography module 601/ camera unit, follow the trail of and take each vehicle license plate with the means of image processing, until license number identification completes, its objective is and guarantee can complete checking before vehicle enters gateway.
System provides one as the message unit 615 of transmitting messages, and comprises the prompting being proved to be successful or verifies unsuccessful alarm signal, can cresset, the sound and various information mode send, and can notify related personnel to come to process.
The unsuccessful vehicle of empirical tests, gate control module 617 can't be received the instruction of starting gate, or in the time that gate is unlatching, gate control module 617 can the notified upper lock gate that closes at once.Otherwise, the successful vehicle of empirical tests, vehicles while passing enters control system and the information producing according to authentication unit 611 is produced to one controls signal to gate control module 617, with starting gate in the time that vehicle enters gateway.In this example, the gateway annex that vehicles while passing enters in control system is provided with a vehicle perception unit 619, can obtain whereby vehicle and enter the time of gateway, and therefore gate control module 617 can be according to sensing time of vehicle and On/Off gate.Particularly, in the turnover entrance that is provided with multiple gateway, this vehicle perception unit 619 is by the gateway that can be used for confirming that vehicle enters, and the time entering.Whereby, because above-mentioned authentication unit 611 has completed license number identification and checking before one or more vehicles arrive corresponding gate, therefore starting gate permission is current before arriving corresponding gate by one or more vehicle of checking for this gate control module 617, represent, vehicle can obtain checking and also can enter smoothly the in the situation that of stagnation of movement completely.
Can be applicable in said system, the embodiment of the present invention also discloses a kind of vehicles while passing and enters method of control.As the flow process of Fig. 7, wherein step S701 represents startup vehicles while passing to enter control system.
Then as step S703, by the above-mentioned camera unit with wide visual angle function, system first obtains captured one or more continuous images that enter the track scope before gateway that comprise, in the process of lasting filmed image, by software or hardware means identification car plate position, and follow identification car plate content, as step S705, wherein also can utilize image tracing means, in the image of taking continuously, follow the trail of car plate and carry out identification.
As step S707, system is according to the identification result comparison list 71 of car plate, and to verify the whether vehicle as allowing to enter of this vehicle, step can be simultaneously carries out for multiple vehicles that image identifications, car plate are followed the trail of and the program of checking.
As step S709, after being proved to be successful, detect that by perceptron vehicle enters gateway, obtain the time that enters gateway, can drive strobe control circuit starting gate, as step S711; Otherwise, if verify unsuccessfully, can detect that equally vehicle enters gateway, if gate was opening at that time, needs to drive strobe control circuit closed shutter, and produce alarm signal, as step S711.
According to above-mentioned flow process, the embodiment of the present invention can reach the effect that has completed license number identification and checking before one or more vehicles arrive corresponding gate, make one or more vehicles that empirical tests is passed through arrive before corresponding gate starting gate and allow currently, represent that vehicle can (need not stop, need not stopping carrying out checking completely) more efficiently and enter in vehicular control place.
In the technology of the number plate recognition of above-mentioned employing, can utilize known technology to judge for the image of special characteristic, such as carrying out identification according to the image feature of car plate, embodiment flow process step as shown in Figure 8.
Number plate recognition flow process comprises and first obtains continuous image, as step S801, according to one of embodiment, system is utilized the virtual object box of software approach, continues scanning, as step S803 in each width of image, system judges whether to detect car plate by the result of scanning, if not, show and not yet have vehicle to enter, continue step S801; If so, represent to pick out in object box to there is the image consistent with vehicle license plate characteristic, can judge according to the frame of object the position of car plate, and mode that can image tracing locks car plate position, to continue identification car plate, as step S805, follow the trail of car plate until complete identification car plate.
Then compare car plate, as step S807, judge whether to allow vehicle to enter according to comparison result? if not, represent that as step S809, system will produce information warning, comprise with cresset, the sound or notify the measures such as the specific personnel of saving from damage not by checking; If so, represent that this vehicle is through checking, as S811, system will be confirmed can starting gate.
The flow process such as proving program, gate control entering through above-mentioned number plate recognition, vehicle, one of advantage that a kind of vehicles while passing involved in the present invention enters control system and method is to have completed identification and checking before vehicle arrives gate, therefore can allow vehicle enter in continuing to travel, being different from known technology needs to carry out the process of verifying after stagnation of movement, and smooth and easy, vehicular control measure is easily provided.
But, the foregoing is only better possible embodiments of the present invention, non-ly therefore limit to protection scope of the present invention, therefore the equivalent structure that all utilizations instructions of the present invention and accompanying drawing content are done changes, be all in like manner contained in scope of the present invention explanation hereby.
Claims (10)
1. vehicles while passing enters a control system, it is characterized in that, described control system comprises:
One camera unit, comprises one or more continuous images that enter the track scope before gateway in order to take;
One image buffer unit, is electrically connected this camera unit, in order to store by the captured continuous image of this camera unit;
One number plate recognition unit, be electrically connected this image buffer unit, obtain stored continuous image by this image buffer unit, carry out an image processing, through scanning each width image of this continuous image, judge car plate position the identification license number of each vehicle according to vehicle license plate characteristic to seek after process on limit;
One authentication unit, is electrically connected this number plate recognition unit, and comparison one list is to verify obtained each vehicle license number; And
One gate control module, is electrically connected this authentication unit, through obtain this authentication unit to the access admittance information of each vehicle after, the gate opening of this gateway of gateway control entering according to each vehicle with close;
Wherein, this authentication unit has completed license number identification and checking before this one or more vehicle arrives corresponding gate, and starting gate permission is current before arriving corresponding gate by this one or more vehicle of checking for this gate control module.
2. vehicles while passing as claimed in claim 1 enters control system, it is characterized in that, described camera unit is to be provided with a coverage to contain multiple wide-angle photographic lens that enter the track before gateway.
3. vehicles while passing as claimed in claim 1 enters control system, it is characterized in that, described camera unit is the camera being made up of multiple image acquisition units, and utilizes the multiple images of an image combining unit seamless combination by the obtained different visual angles of the plurality of image acquisition unit.
4. vehicles while passing enters control system as claimed in claim 2 or claim 3, it is characterized in that, draws behind each vehicle license plate position in this number plate recognition unit, drives this camera unit to follow the trail of and takes each vehicle license plate, until license number identification completes.
5. vehicles while passing as claimed in claim 1 enters control system, it is characterized in that, described authentication unit is electrically connected a message unit, to send information according to the result.
6. vehicles while passing as claimed in claim 5 enters control system, it is characterized in that, described authentication unit is also electrically connected a vehicle aided verification unit, in the time that this one or more vehicles failed is verified by this authentication unit, provides the second verification mode.
7. vehicles while passing as claimed in claim 1 enters control system, it is characterized in that, each gateway is provided with a vehicle perception unit, be electrically connected this gate control module, the gateway entering in order to the each vehicle of perception, this gate control module is according to the corresponding gate opening of the signal controlling of this vehicle perception unit or close.
8. vehicles while passing enters a method of control, it is characterized in that, described method of control comprises:
Obtain that a camera unit is captured comprises that one or more enters the continuous image of the track scope before gateway;
By the each vehicle license plate of identification position in this continuous image, and the each car plate content of identification;
Carry out checking according to each car plate content, to confirm the access admittance of these one or more vehicles; And
Detect the gateway that each vehicle enters, to open gate that should gateway;
Wherein, this verification step has completed license number identification and checking before these one or more vehicles arrive corresponding gate, and before these one or more vehicles that empirical tests is passed through arrive corresponding gate, starting gate permission is current.
9. vehicles while passing as claimed in claim 8 enters method of control, it is characterized in that, have mobile object, and then judgement has one or more vehicle that enters these one or more tracks according to the diversity judgement of the captured front and back image of this camera unit certainly.
10. vehicles while passing as claimed in claim 9 enters method of control, it is characterized in that, enters after vehicle in having judged, and this camera unit is by following the trail of the car plate position of the vehicle picking out, until car plate content identification goes out.
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| CN201310006782.5A CN103914898B (en) | 2013-01-08 | 2013-01-08 | Vehicles while passing enters control system and method for control |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN104601854A (en) * | 2014-12-31 | 2015-05-06 | 苏州佳世达电通有限公司 | Image recognition module, electronic device, and image recognition verification and scan correction method |
| CN104601854B (en) * | 2014-12-31 | 2017-12-01 | 苏州佳世达电通有限公司 | Image identification module, electronic installation, image identification checking and scanning bearing calibration |
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| CN105113438A (en) * | 2015-07-28 | 2015-12-02 | 苏州玄禾物联网科技有限公司 | Image processing based gate machine control device of parking place |
| CN111524360A (en) * | 2020-04-21 | 2020-08-11 | 刘哲安 | Embedded license plate identification and screening system and control method thereof |
| WO2022004411A1 (en) * | 2020-07-01 | 2022-01-06 | Sony Group Corporation | Information processing apparatus and method, and program |
| CN115065133A (en) * | 2022-06-10 | 2022-09-16 | 联泰集群（北京）科技有限责任公司 | Edge computing node and access control system based on self-energy supply |
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