CN107680382A - Licence plate recognition method, module, cloud server and managing system of car parking - Google Patents

Licence plate recognition method, module, cloud server and managing system of car parking Download PDF

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Publication number
CN107680382A
CN107680382A CN201710104001.4A CN201710104001A CN107680382A CN 107680382 A CN107680382 A CN 107680382A CN 201710104001 A CN201710104001 A CN 201710104001A CN 107680382 A CN107680382 A CN 107680382A
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CN
China
Prior art keywords
plate
admission
matching degree
car
appearance
Prior art date
Application number
CN201710104001.4A
Other languages
Chinese (zh)
Inventor
付营之
孟东振
聂伟
朱海远
Original Assignee
上海享泊信息科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 上海享泊信息科技有限公司 filed Critical 上海享泊信息科技有限公司
Priority to CN201710104001.4A priority Critical patent/CN107680382A/en
Publication of CN107680382A publication Critical patent/CN107680382A/en

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Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/01Detecting movement of traffic to be counted or controlled
    • G08G1/017Detecting movement of traffic to be counted or controlled identifying vehicles
    • G08G1/0175Detecting movement of traffic to be counted or controlled identifying vehicles by photographing vehicles, e.g. when violating traffic rules
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/50Information retrieval; Database structures therefor; File system structures therefor of still image data
    • G06F16/58Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
    • G06F16/583Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually using metadata automatically derived from the content
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K9/00Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
    • G06K9/20Image acquisition
    • G06K9/32Aligning or centering of the image pick-up or image-field
    • G06K9/3233Determination of region of interest
    • G06K9/325Detection of text region in scene imagery, real life image or Web pages, e.g. licenses plates, captions on TV images
    • G06K9/3258Scene text, e.g. street name
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network-specific arrangements or communication protocols supporting networked applications
    • H04L67/12Network-specific arrangements or communication protocols supporting networked applications adapted for proprietary or special purpose networking environments, e.g. medical networks, sensor networks, networks in a car or remote metering networks
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K2209/00Indexing scheme relating to methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
    • G06K2209/15Detection and recognition of car license plates

Abstract

The present invention provides a kind of licence plate recognition method, module, cloud server and managing system of car parking, and the licence plate recognition method includes:Entering field picture and the admission number-plate number and storing to database for parking lot vehicle is driven into acquisition;When needing outgoing vehicles parking lot to be rolled away from, obtain treat outgoing vehicles go out field picture and the appearance number-plate number for treating outgoing vehicles;The admission number-plate number is obtained from database and by the admission number-plate number of acquisition one by one with treating that the appearance number-plate number of outgoing vehicles carries out numbers match, obtain matching degree and sort and determine the matching degree highest admission number-plate number;Treat that outgoing vehicles roll parking lot away from according to matching degree highest admission number-plate number control.The problem of present invention can improve matching accuracy rate, avoid matching and correctly drive into record, and vehicle can not roll away from, by wireless networking and virtually feel technology, effectively having evaded construction need to arrange net wiring, construction cost height but also the problem of can destroy road surface.

Description

Licence plate recognition method, module, cloud server and managing system of car parking

Technical field

The present invention relates to parking lot management field, more particularly to a kind of licence plate recognition method, module, cloud server with And managing system of car parking.

Copyright notice

This patent document disclosure includes material protected by copyright.The copyright owns for copyright holder.All rights reserved People does not oppose that anyone replicates the patent document or the patent in the presence of the proce's-verbal of Patent&Trademark Office and archives Disclose.

Background technology

With urban modernization, international development, city dweller's car owning amount sharply increases, and is setting up parking lot Also ceaselessly strengthen the management in parking lot simultaneously, be expected that by rational management to utilize limited parking lot resource at utmost Ground meets the parking demand of vehicle.

All it is that license board information is gathered by camera when vehicle enters and exits Entrance at present, then to automotive license plate Acquisition license board information is identified, charging is carried out according to the license board information of acquisition, then controls banister switch to be let pass.Car plate Automatic identification technology(License Plate Recognition, LPR)It is with computer technology, image processing techniques, fuzzy knowledge Based on not, the characteristic model of vehicle is established, identifies vehicle characteristics, such as number-plate number, color.It is one with specific objective For the special-purpose computer vision system of object, license plate image can be automatically extracted from piece image, automatic separating character, so that it is right Character is identified, and it uses advanced image procossing, pattern-recognition and artificial intelligence technology, and the image information collected is entered Row processing, can real-time and accurately automatically identify numeral, letter and the chinese character of car plate, and directly give recognition result, So that the computerized monitoring and management of vehicle become a reality.

In existing license plate recognition technology, discrimination be weigh current techniques main index, directly determine its The application value of terminal.Therefore, the improvement of discrimination is the main direction of license plate recognition technology development, and determines that car plate is known The key factor of broader applications can not obtained.It is but not accurate enough to Car license recognition rate in the prior art.To automotive license plate It is identified and obtains in license board information, rolling vehicle away from record is matched with driving into record, according to driving into what records photographing arrived Car plate, record whether is driven into Test database, it is automatic to let pass if nothing, charging is carried out if having.But due to good again Identifying system is there is also identification error, when small probability event occurs, it is possible to occur entering and exiting the car plate recognized once The situation of correct once mistake, then may cause to match and correctly drive into record.

And artificial opening for banister of control on duty is generally required in parking lot and is put, the generally use LAN on communication mode Pattern, business scalability is low, difficult in maintenance, and senses the ground sense line construction that vehicle drives into or out of and need to arrange net wiring, constructs Cost is high but also can destroy road surface.

The content of the invention

In view of the above the shortcomings that prior art, it is an object of the invention to provide a kind of licence plate recognition method, module, Cloud server and managing system of car parking, record correctly is driven into for solving not matching in the prior art, is constructed Need to be arranged net wiring, and construction cost is high but also the problem of destroying road surface.

In order to solve above-mentioned and other potential technical problems, the embodiment provides a kind of Car license recognition Method, the licence plate recognition method include:Entering field picture and the admission number-plate number and storing for parking lot vehicle is driven into acquisition To database;When needing outgoing vehicles parking lot to be rolled away from, obtain treat outgoing vehicles go out field picture and the car to be rolled away from The appearance number-plate number;From the database obtain the admission number-plate number and by the admission number-plate number of acquisition one by one with institute State and treat that the appearance number-plate number of outgoing vehicles carries out numbers match, obtain matching degree and sort and determine matching degree highest admission car Trade mark code;Treat that outgoing vehicles roll parking lot away from according to matching degree highest admission number-plate number control.

In one embodiment of the invention, the admission number-plate number by acquisition treats going out for outgoing vehicles with described one by one The field number-plate number carries out numbers match, obtains matching degree sequence and specifically includes:According to matching the admission number-plate number and described The identical digit of the number of the appearance number-plate number obtains matching degree, and the matching degree more than identical digit is higher, sorts preceding.

In one embodiment of the invention, if the complete phase of number of the admission number-plate number and the appearance number-plate number Together, matching degree is taken as the maximum that matching degree presets interval, sequence first;The admission number-plate number and the pull-out vehicle The number of trade mark code differs a difference, and matching degree is taken as the Second Largest Value that matching degree presets interval, sequence second.

In one embodiment of the invention, if there is the admission number-plate number described in multiple matching degree identicals, according to it is described enter The position of the character differed in the number-plate number of field determines that matching degree sorts, and position is preceding, and matching degree sorts preceding.

In one embodiment of the invention, the admission number-plate number is obtained from the database to drive into record but without sailing Go out the admission number-plate number of record.

A kind of car plate is additionally provided in order to solve above-mentioned and other potential technical problems, one embodiment of the invention Identification module, the Car license recognition module include:Acquiring unit, entering field picture and entering for parking lot vehicle is driven into for obtaining The number-plate number is simultaneously stored to database, and when needing outgoing vehicles parking lot to be rolled away from, obtains the appearance for treating outgoing vehicles Image and the appearance number-plate number for treating outgoing vehicles;Matching unit, for obtaining admission license plate number from the database The admission number-plate number of acquisition is simultaneously carried out numbers match, acquisition by code with the appearance number-plate number for treating outgoing vehicles one by one Sorted with degree and determine the matching degree highest admission number-plate number, for according to the matching degree highest admission number-plate number control Treat that outgoing vehicles roll parking lot away from described in system.

In one embodiment of the invention, the matching unit is according to the matching admission number-plate number and the pull-out vehicle The identical digit of the number of trade mark code obtains matching degree, and the matching degree more than identical digit is higher, sorts preceding;If the admission car plate Number is identical with the number of the appearance number-plate number, and matching degree is taken as the maximum that matching degree presets interval, row Sequence first;The number of the admission number-plate number and the appearance number-plate number differs a difference, and matching degree is taken as matching degree The Second Largest Value of default interval, sequence second;If there are the admission number-plate number described in multiple matching degree identicals, the matching Unit determines that matching degree sorts according to the position of the character differed in the admission number-plate number, and position is preceding, matching degree Sequence is preceding.

In one embodiment of the invention, the matching unit obtains the admission number-plate number to sail from the database Enter record but without the admission number-plate number for rolling record away from.

A kind of high in the clouds is additionally provided in order to solve above-mentioned and other potential technical problems, one embodiment of the invention Server, including data memory module, parking charge module, banister control module and Car license recognition module as described above.

A kind of parking is additionally provided in order to solve above-mentioned and other potential technical problems, one embodiment of the invention Course management system, the managing system of car parking include:Cloud server as described above;Camera group, including a master take the photograph As head and at least one from camera, for gather drive into parking lot vehicle enter field picture and that treats outgoing vehicles goes out field picture And by the image transmitting of collection to the cloud server;Wireless network module, for establish the main camera with it is each described Wireless communication between the wireless communication and the main camera and the cloud server of camera.

In one embodiment of the invention, the main camera and each described parking lot is installed in respectively not from camera With gateway direction to the car and matched with car plate position height, and in the predeterminated position of the outlet in parking lot or entrance present one For catching the virtually sense of car plate, described in the car plate entrance in vehicle during virtually sensillary area domain, the image information of collection vehicle.

As described above, the present invention licence plate recognition method, module, cloud server and managing system of car parking have with Lower beneficial effect:

1st, the present invention obtains by the admission number-plate number of acquisition one by one with treating that the appearance number-plate number of outgoing vehicles carries out numbers match Take matching degree to sort and determine the matching degree highest admission number-plate number;According to the matching degree highest admission number-plate number control Treat that outgoing vehicles roll parking lot away from described in system, matching accuracy rate can be improved, avoid matching and correctly drive into record, car The problem of can not rolling away from.

2nd, the data interchange that the present invention is realized by wireless networking in region is shared, and avoids the parking lot entered more and had more Data silo problem.

3rd, the present invention is by virtually feeling technology, and effectively having evaded construction need to arrange net wiring, construction cost height but also The problem of road surface can be destroyed.

Brief description of the drawings

Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings Accompanying drawing.

Fig. 1 is shown as the schematic flow sheet of the licence plate recognition method of the present invention.

Fig. 2 is shown as the theory diagram of the Car license recognition module of the present invention.

Fig. 3 is shown as the structure Organization Chart of the managing system of car parking of the present invention.

Fig. 4 is shown as the structural representation of circuit control panel in the managing system of car parking of the present invention.

Component label instructions

100 Car license recognition module 101 Acquiring unit 102 Matching unit 200 Circuit control panel 201 Memory 202 Processor 203 Peripheral Interface 1 Cloud server 2 Main camera 3 From camera S101~S104 Step

Embodiment

Illustrate embodiments of the present invention below by way of specific instantiation, those skilled in the art can be by this specification Disclosed content understands other advantages and effect of the present invention easily.The present invention can also pass through specific realities different in addition The mode of applying is embodied or practiced, the various details in this specification can also be based on different viewpoints with application, without departing from Various modifications or alterations are carried out under the spirit of the present invention.It should be noted that in the case where not conflicting, following examples and implementation Feature in example can be mutually combined.

Fig. 1 is referred to Fig. 4.It should be clear that structure, ratio, size depicted in this specification institute accompanying drawings etc., only to Coordinate the content disclosed in specification, so that those skilled in the art understands and reads, being not limited to the present invention can be real The qualifications applied, therefore do not have technical essential meaning, the tune of the modification of any structure, the change of proportionate relationship or size It is whole, in the case where not influenceing the effect of present invention can be generated and the purpose that can reach, all should still fall in disclosed skill Art content is obtained in the range of covering.Meanwhile in this specification it is cited as " on ", " under ", "left", "right", " centre " and The term of " one " etc., understanding for narration is merely convenient to, and is not used to limit the enforceable scope of the present invention, its relativeness It is altered or modified, in the case where changing technology contents without essence, when being also considered as the enforceable category of the present invention.

The purpose of the present embodiment is to provide a kind of licence plate recognition method, module, cloud server and parking lot management System, correctly record is driven into for solving not matching in the prior art, construction need to arrange net wiring, construction cost height and The problem of road surface can also be destroyed.Licence plate recognition method of the invention, module, cloud server and parking described in detail below The principle and embodiment of course management system, the car for making those skilled in the art not need creative work to be appreciated that the present invention Board recognition methods, module, cloud server and managing system of car parking.

Referring to Fig. 1, it is shown as the schematic flow sheet of the licence plate recognition method of the present invention.As shown in figure 1, the car plate is known Other method comprises the following steps:

Entering field picture and the admission number-plate number and storing to database for parking lot vehicle is driven into step S101, acquisition.

Step S102, when needing outgoing vehicles parking lot to be rolled away from, obtain treat outgoing vehicles go out field picture and described Treat the appearance number-plate number of outgoing vehicles.

Step S103, from the database obtain the admission number-plate number and by the admission number-plate number of acquisition one by one with institute State and treat that the appearance number-plate number of outgoing vehicles carries out numbers match, obtain matching degree and sort and determine matching degree highest admission car Trade mark code.

In the present embodiment, it is to have to drive into record but without rolling record away from that the admission number-plate number is obtained from the database The admission number-plate number.

Specifically, in the present embodiment, in the present embodiment, the admission number-plate number by acquisition is treated with described one by one The appearance number-plate number of outgoing vehicles carries out numbers match, obtains matching degree sequence and specifically includes:According to the matching admission car Identical digit obtains matching degree to trade mark code with the number of the appearance number-plate number, and the matching degree more than identical digit is higher, sequence Preceding.

In the present embodiment, if the admission number-plate number is identical with the number of the appearance number-plate number, matching Degree is taken as the maximum that matching degree presets interval, sequence first;The admission number-plate number and the appearance number-plate number Number differ a difference, matching degree be taken as matching degree preset interval Second Largest Value, sequence second.

Wherein, in the present embodiment, if there is the admission number-plate number described in multiple matching degree identicals, according to the admission car The position of the character differed in trade mark code determines that matching degree sorts, it is preferable that position is preceding, and matching degree sorts preceding.

Step S104, treat that outgoing vehicles roll parking away from according to matching degree highest admission number-plate number control .

To realize above-mentioned licence plate recognition method, as shown in Fig. 2 the present embodiment is also corresponding to provide a kind of Car license recognition module 100, the Car license recognition module 100 includes:Acquiring unit 101 and matching unit 102.

In the present embodiment, the acquiring unit 101 be used to obtaining drive into parking lot vehicle enter field picture and admission The number-plate number is simultaneously stored to database, and when needing outgoing vehicles parking lot to be rolled away from, obtains the appearance figure for treating outgoing vehicles Picture and the appearance number-plate number for treating outgoing vehicles.

In the present embodiment, the matching unit 102 is used to obtain the admission number-plate number from the database and will obtained The admission number-plate number taken carries out numbers match with the appearance number-plate number for treating outgoing vehicles one by one, obtains matching degree sequence And the matching degree highest admission number-plate number is determined, for being treated according to matching degree highest admission number-plate number control Outgoing vehicles roll parking lot away from.

In the present embodiment, the matching unit 102 obtains the admission number-plate number to drive into note from the database Record but nothing roll the admission number-plate number of record away from.

Specifically, in the present embodiment, the matching unit 102 is according to the matching admission number-plate number and the appearance The identical digit of the number of the number-plate number obtains matching degree, and the matching degree more than identical digit is higher, sorts preceding.

If the admission number-plate number is identical with the number of the appearance number-plate number, it is pre- that matching degree is taken as matching degree If the maximum of interval, sequence first;The number of the admission number-plate number and the appearance number-plate number differs one Difference, matching degree are taken as the Second Largest Value that matching degree presets interval, sequence second.

If there is the admission number-plate number described in multiple matching degree identicals, the matching unit 102 is according to the admission car plate The position of the character differed in number determines that matching degree sorts, and position is preceding, and matching degree sorts preceding.

As shown in figure 3, the present embodiment additionally provides a kind of managing system of car parking, the managing system of car parking includes: Cloud server 1, camera group and wireless network module.

Specifically, in the present embodiment, the camera group includes a main camera 2 and at least one from camera 3, For gather drive into parking lot vehicle enter field picture and that treats outgoing vehicles goes out field picture and by the image transmitting of collection to institute State cloud server 1.

In the present embodiment, the main camera 2 and each different discrepancy for being installed in parking lot respectively from camera 3 Mouthful direction to the car and match with car plate position height, and be presented one for catching in the predeterminated position of the outlet in parking lot or entrance The virtually sense of car plate is caught, described in the car plate entrance in vehicle during virtually sensillary area domain, the image information of collection vehicle.The void Intend ground sense be in camera projected virtual go out a graphical boxes, when vehicles while passing and car plate pass through the graphical boxes region, Identification work is completed, and is shot.

It is to draw one in the region that car plate passes through virtually to feel wire frame so in the present embodiment.When detecting car plate When there is common factor position with virtually feeling wire frame, camera is shot to vehicle.So, just need not the sense of arrangement ground on ground Line, effectively having evaded construction need to arrange net wiring, construction cost height but also the problem of can destroy road surface.

In the present embodiment, the wireless network module be used to establishing the main camera 2 with it is each described from camera 3 Wireless communication between wireless communication and the main camera 2 and the cloud server 1.Closed according to principal and subordinate System, the wireless network module realizes that a main camera 2 communicates with cloud server 1, and what is aided in only need to be with from camera 3 more The structure that main camera 2 is communicated.Main camera 2 and it is multiple from camera 3 in same LAN, using internal gateway Routing Protocol(IGRP), identify and communicated according to the fixation IP values of each camera, each is from camera 3 Main camera 2 can be asked to carry out data acquisition, this data interchange realized in region is shared, and avoids the parking entered more and had more Field data islanding problem.

Specifically, the cloud server 1 include data memory module, parking charge module, banister control module and Car license recognition module 100 as described above.The view data and road that wherein data memory module storage is sent from each camera Banister information corresponding to lock control module, the Car license recognition module 100 are driving into record but without rolling the admission of record away from from having Got in the number-plate number with after the admission number-plate number matched after the appearance number-plate number of outgoing vehicles, parking charge mould Block is calculated Parking Fee, and banister control module is opened from the i.e. transmittable control instruction of cloud server 1 to corresponding banister Executing agency is closed, realizes lifting and transferring for banister.

As shown in figure 4, the present invention provides a kind of circuit control panel 200, the circuit control panel 200 in an embodiment Available in the cloud server 1 in Fig. 3.The circuit control panel 200 runs Car license recognition module 100 as described above.Such as Shown in Fig. 4, the circuit control panel 200 includes memory 201, processor 202(CPU)With Peripheral Interface 203.The processor 202 be include central processing unit, microprocessor, digital signal processor and other process chips any or several; The memory 201 may include high-speed random access memory, and may also include nonvolatile memory, such as one or more Individual disk storage equipment, flash memory device or other non-volatile solid-state memory devices.

The memory 201, the processor 202(CPU)It is total by one or more communication with the Peripheral Interface 203 Line or signal wire are communicated.The input of circuit control panel 200 and output peripheral hardware are couple to processor 202 by Peripheral Interface 203 With memory 201.The processor 202 runs the various software programs and/or instruction set being stored in memory 201, so as to Acquiring unit 101101 and the various functions of matching unit 102102 in Fig. 2 are performed, and data are handled, i.e., described car plate Identification module 100 is stored in the memory 201, and is run by the processor 202.In certain embodiments, Peripheral Interface 203rd, processor 202(CPU)And memory 201 can be realized on a single chip.And in some other embodiments, they It may be realized in multiple separate chips.

In summary, the admission number-plate number of the invention by acquisition is one by one with treating that the appearance number-plate number of outgoing vehicles is carried out Numbers match, obtain matching degree and sort and determine the matching degree highest admission number-plate number;Entered according to the matching degree highest Treat that outgoing vehicles roll parking lot away from described in the number-plate number control of field, matching accuracy rate can be improved, avoid not matching correctly Drive into record, the problem of vehicle can not roll away from;The data interchange that the present invention is realized by wireless networking in region is shared, and keeps away Exempted to enter the parking data islanding problem having more more;For the present invention by virtually feeling technology, effectively having evaded construction needs cloth Screen cloth line, construction cost is high but also the problem of destroying road surface.So the present invention effectively overcome it is of the prior art a variety of Shortcoming and have high industrial utilization.

The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause This, art includes usual skill complete without departing from disclosed spirit and institute under technological thought such as Into all equivalent modifications or change, should by the present invention claim be covered.

Claims (11)

  1. A kind of 1. licence plate recognition method, it is characterised in that:The licence plate recognition method includes:Entering for parking lot vehicle is driven into acquisition Field picture and the admission number-plate number are simultaneously stored to database;When needing outgoing vehicles parking lot to be rolled away from, obtain and wait to roll away from Vehicle goes out field picture and the appearance number-plate number for treating outgoing vehicles;The admission number-plate number is obtained from the database simultaneously The admission number-plate number of acquisition is subjected to numbers match with the appearance number-plate number for treating outgoing vehicles one by one, obtains matching degree Sort and determine the matching degree highest admission number-plate number;Treated according to matching degree highest admission number-plate number control Outgoing vehicles roll parking lot away from.
  2. 2. licence plate recognition method according to claim 1, it is characterised in that:The admission number-plate number by acquisition is one by one Numbers match is carried out with the appearance number-plate number for treating outgoing vehicles, matching degree sequence is obtained and specifically includes:
    According to the admission number-plate number is matched, identical digit obtains matching degree, identical bits with the number of the appearance number-plate number The more matching degree of number is higher, sorts preceding.
  3. 3. licence plate recognition method according to claim 2, it is characterised in that:If the admission number-plate number and the appearance The number of the number-plate number is identical, and matching degree is taken as the maximum that matching degree presets interval, sequence first;The admission The number of the number-plate number and the appearance number-plate number differs a difference, and matching degree is taken as that matching degree presets interval Two big values, sequence second.
  4. 4. the licence plate recognition method according to Claims 2 or 3, it is characterised in that:If have described in multiple matching degree identicals The admission number-plate number, determine that matching degree sorts according to the position of the character differed in the admission number-plate number, position is preceding , matching degree sorts preceding.
  5. 5. licence plate recognition method according to claim 1, it is characterised in that:Admission license plate number is obtained from the database Code drives into record but without the admission number-plate number for rolling record away to have.
  6. A kind of 6. Car license recognition module, it is characterised in that:The Car license recognition module includes:
    Acquiring unit, entering field picture and the admission number-plate number and storing to database for parking lot vehicle is driven into for obtaining, And when needing outgoing vehicles parking lot to be rolled away from, obtain treat outgoing vehicles go out field picture and the appearance for treating outgoing vehicles The number-plate number;Matching unit, for from the database obtain the admission number-plate number and by the admission number-plate number of acquisition by The one appearance number-plate number for treating outgoing vehicles with described carries out numbers match, obtains matching degree and sorts and determine matching degree highest The admission number-plate number, for treating that outgoing vehicles roll parking away from according to matching degree highest admission number-plate number control .
  7. 7. Car license recognition module according to claim 6, it is characterised in that:The matching unit is according to the matching admission Identical digit obtains matching degree to the number-plate number with the number of the appearance number-plate number, and the matching degree more than identical digit is higher, row Sequence is preceding;If the admission number-plate number is identical with the number of the appearance number-plate number, it is pre- that matching degree is taken as matching degree If the maximum of interval, sequence first;The number of the admission number-plate number and the appearance number-plate number differs one Difference, matching degree are taken as the Second Largest Value that matching degree presets interval, sequence second;If have described in multiple matching degree identicals The admission number-plate number, the matching unit determine that matching degree is arranged according to the position of the character differed in the admission number-plate number Sequence, position is preceding, and matching degree sorts preceding.
  8. 8. Car license recognition module according to claim 7, it is characterised in that:The matching unit obtains from the database It is to have to drive into record but without the admission number-plate number for rolling record away to be taken into a number-plate number.
  9. 9. a kind of cloud server, including data memory module, parking charge module, such as banister control module and claim Car license recognition module described in 6 to claim 8 any claim.
  10. A kind of 10. managing system of car parking, it is characterised in that:The managing system of car parking includes:As claimed in claim 9 Cloud server;Camera group, including a main camera and at least one from camera, parking lot vehicle is driven into for gathering Enter field picture and that treats outgoing vehicles goes out field picture and by the image transmitting of collection to the cloud server;Wireless network mould Block, for establish the main camera with it is each described from the wireless communication of camera and the main camera and the cloud Hold the wireless communication between server.
  11. 11. managing system of car parking according to claim 10, it is characterised in that:The main camera and each described from taking the photograph The direction to the car of the different gateways in parking lot is installed in respectively as head and is matched with car plate position height, and going out in parking lot Mouthful or the predeterminated position of entrance be presented one and be used to catch the virtually sense of car plate, enter in the car plate of vehicle described in virtually sensillary area During domain, the image information of collection vehicle.
CN201710104001.4A 2017-02-24 2017-02-24 Licence plate recognition method, module, cloud server and managing system of car parking CN107680382A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108898841A (en) * 2018-06-06 2018-11-27 广州群安电子科技有限公司 A kind of processing method and processing device of parking lot vehicle identification exception
CN109615900A (en) * 2018-06-29 2019-04-12 浙江车行智慧科技有限公司 Parking navigation charge system and method based on big data
CN109615901A (en) * 2018-06-29 2019-04-12 浙江车行智慧科技有限公司 A kind of parking management system and method based on big data
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