CN208250967U - Intelligent space lock based on embedded vehicle license plate identification - Google Patents
Intelligent space lock based on embedded vehicle license plate identification Download PDFInfo
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- CN208250967U CN208250967U CN201820170350.6U CN201820170350U CN208250967U CN 208250967 U CN208250967 U CN 208250967U CN 201820170350 U CN201820170350 U CN 201820170350U CN 208250967 U CN208250967 U CN 208250967U
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- license plate
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- intelligent space
- lock
- embedded vehicle
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Abstract
The utility model discloses the intelligent space locks identified based on embedded vehicle license plate, intelligent space lock includes WiFi module, video sensor, embedded vehicle license plate identifying system, wireless sensor and berth lock control module, embedded vehicle license plate identifying system is respectively connected with WiFi module, video sensor, berth lock control module, and wireless sensor is connected to berth lock control module；There are also the mobile terminal for intelligent space lock to be arranged, mobile terminal is communicated by wireless network with intelligent space lock.Intelligent space lock is mounted on general parking stall, when vehicle will drive into parking stall, the video sensor, which captures license plate image and is loaded into the embedded vehicle license plate identifying system progress image procossing, identifies license plate number, it is matched with the license plate number of storage, successful match then sends instructions to control parking stall lock module; rocker arm rises auto-unlocking, shuts automatically when vehicle leaves.The utility model can apply to resident's private savings parking stall, and the places such as parking lot have practical application value.
Description
Technical field
The utility model relates to Internet of Things intelligent transportation fields, and in particular to a kind of intelligence based on embedded vehicle license plate identification
Berth lock.
Background technique
With the rapid development of China's process of modernization, the living standard of resident is stepped up, automobile gradually at
For the vehicles essential in people's daily life, the problem of ownership also gradually increases, parking difficulty, is on the rise,
The fight of " robbing parking stall " grows in intensity.To solve parking difficulty, seizing the problems such as parking stall, berth lock is always one more civilized
Solution.
Existing berth lock is broadly divided into two kinds: Manual parking spot lock and remote control parking stall lock.Manual parking spot lock, which refers to, utilizes machine
Tool principle realizes that manual key opens berth lock.It realizes the lifting of flip-arm by manual operation, and driver needs before stopping
It gets off to unlock manually and falls berth lock flip-arm, vehicle also needs to rise berth lock manually after leaving, and not only exists indulge in this way
Between mistaking, the disadvantages such as low with the degree of automation inconvenient for use, and be easy to account for because of vehicle during car owner's drive-through operation berth lock
Road and cause enter and leave congestion the problems such as.Then there is remote control parking stall lock, is a kind of to carry out elevating control with hand-held remote controller
Automation equipment.This berth lock is also required to before car owner is stopped every time and is remotely controlled operation when leaving parking stall, not enough automates
And intelligence.
Summary of the invention
The technical problem to be solved by the present invention is to, low for the degree of automation existing for above-mentioned current berth lock,
Technological deficiency inconvenient for use, provide it is a kind of can automatic identification vehicle identification and auto-unlocking identified based on embedded vehicle license plate
Intelligent space lock solve the above problems.
Based on embedded vehicle license plate identification intelligent space lock, which is characterized in that intelligent space lock 2 include WiFi module 21,
Video sensor 22, embedded vehicle license plate identifying system 23, wireless sensor 24 and berth lock control module 25, embedded vehicle license plate
Identifying system 23 is respectively connected with WiFi module 21, video sensor 22, berth lock control module 25, and wireless sensor 24 connects
To berth lock control module 25.
Further, there are also the mobile terminal 1 for intelligent space lock to be arranged, the mobile terminal 1 passes through wireless network
It is communicated with intelligent space lock 2, the mobile terminal 1 is provided with addition, deletion, display car owner's license plate number and shows parking space state
Function.
Further, the WiFi module 21 is used to communicate to connect 1 He of mobile terminal by local area network Socket
Intelligent space lock 2.
Further, the video sensor 22 uses camera, to the vehicle when for detecting that vehicle enters parking stall
License plate carries out shooting, collecting license plate image.
Further, the embedded vehicle license plate identifying system 23 include image processing module 231, memory module 232 and
With module 233, matching module 233 is connect with image processing module 231 and memory module 232 respectively, and matching module 233 is gone back and vehicle
Position lock control module 25 connects；Described image processing module 231 is used for after the video sensor 22 collects license plate image,
The license plate image is loaded to and carried out Car license recognition, identify characters on license plate data and is transferred to matching module 233；Store mould
Block 232 passes through the pre-added license plate number character data of mobile terminal 1 for storing；Matching module 233 is used for will be from image
The pre-added license plate number character data stored in the characters on license plate data that receive of reason module 231 and memory module 232 into
Row matching.
Further, described image processing module 231 includes three License Plate, Character segmentation and character recognition parts,
The accurate positionin of license plate area is realized using the algorithm of locating license plate of vehicle combined based on textural characteristics and support vector machines；It is positioning
Character segmentation is carried out using the mode for obtaining character outline after license plate area out；Finally realize that character is known using neural network method
Not.
Further, the wireless sensor 24 is for detecting on parking stall with the presence or absence of vehicle.
Further, the berth lock control module 25 is used to control the lifting of rocker of parking spot lock, berth lock control module
25 are connected to the matching module 233 of embedded vehicle license plate identifying system 23, identify license plate in the embedded vehicle license plate identifying system 23
Number and successful match after, to the berth lock control module 25 send unlocking instruction, rocker arm landing unlock；Berth lock control module
25 are also connected to wireless sensor 24, when the wireless sensor 24 detects parking stall without vehicle, send out to the control module
It send and shuts instruction, rocker arm landing is shut.
Compared with prior art, the utility model has the beneficial effects that the utility model application license plate recognition technology, is realized
Automatic identification vehicle, vehicle to open, vehicle walks locking functions；The utility model passes through user terminal mobile phone under WiFi local area network
APP adds license plate number into the embedded vehicle license plate identifying system 23 of intelligent space lock 2, realizes the monitoring function to parking stall, this reality
Have the advantages that real-time is high, at low cost with the intelligent space lock 2 based on Car license recognition of novel offer.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the intelligent space lock that the utility model is identified based on embedded vehicle license plate；
Fig. 2 is flow chart of the utility model based on the embedded intelligent space lock based on Car license recognition；
Fig. 3 is the flow chart that embedded vehicle license plate identifying system carries out Car license recognition；
Fig. 4 is the flow chart that image processing module carries out License Plate；
Fig. 5 is the flow chart that image processing module carries out Character segmentation；
Fig. 6 is the flow chart that image processing module carries out character recognition.
Specific embodiment
It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type embodiment is further described.
Referring to Fig. 1, the intelligent space lock that the utility model is identified based on embedded vehicle license plate, intelligent space lock 2 include
WiFi module 21, video sensor 22, embedded vehicle license plate identifying system 23, wireless sensor 24 and berth lock control module
25, embedded vehicle license plate identifying system 23 is respectively connected with WiFi module 21, video sensor 22, berth lock control module 25, nothing
Line sensor 24 is connected to berth lock control module 25.There are one for be arranged intelligent space lock, display parking space state and
Addition, the mobile terminal 1 for deleting license plate number.WiFi module 21 is used to communicate to connect 1 He of mobile terminal by local area network Socket
Intelligent space lock 2, video sensor 22 is for detecting vehicle and carrying out candid photograph acquisition, embedded vehicle license plate identification system to license plate image
System 23 include image processing module 231, memory module 232, matching module 233, matching module 233 respectively with image processing module
231 and memory module 232 connect, matching module 233 also connect with berth lock control module 25.It is arrived in the candid photograph of video sensor 22
After license plate image, it is loaded into image processing module 231 and carries out Car license recognition, the characters on license plate identified is stored in matching mould
Block 233 is matched with the license plate number of memory module 232, after successful match to control parking stall lock module send unlocking instruction into
Row is unlocked, and whether wireless sensor 24 on parking stall for having vehicle to detect, when detecting no vehicle, to control berth lock
Module transmission shuts instruction and is shut；Matching module 233 can also send message feedback parking space state to mobile terminal 1,
Mobile terminal shows parking space state and license plate number on 1 interface.
Specifically, the intelligent space lock that the utility model is identified based on embedded vehicle license plate is when in use, user is moving in advance
The license plate number of oneself is added in dynamic terminal 1, mobile terminal 1 can be communicated by wireless network with intelligent space lock 2 at this time, license plate number
In the memory module 232 being stored in after signal transmits in embedded vehicle license plate identifying system 23.Intelligent space lock 2 is mounted on
On general parking stall, when vehicle will drive into parking stall, video sensor 22 captures license plate image and is loaded into embedded vehicle license plate identification
Image processing module 231 in system 23 carries out image procossing and identifies license plate number, with the license plate number stored in memory module 232
It is matched, the comparison of two license plate numbers is carried out in matching module 233, unlocking instruction is sent if successful match to berth lock
Control module 25, rocker arm rises auto-unlocking, while matching module 233 feeds back parking space state information to movement by WiFi communication
Terminal 1 shows the license plate number of " parking stall has used " and successful match on a mobile terminal 1, does not send out if it fails to match
Lock instruction；When wireless sensor 24 detects that the vehicle being parked on parking stall leaves or parking stall is without vehicle, to parking stall lock control mould
The transmission of block 25 shuts instruction, and rocker arm landing is shut, while matching module 233 feeds back parking space state information to shifting by WiFi communication
Dynamic terminal 1 is showing " having vacated parking stall " on a mobile terminal 1.If desired change default license plate number, user can be in mobile terminal
The license plate number added is deleted on 1, and adds new license plate number again.
Referring to Fig. 2, the work flow diagram of the intelligent space lock provided by the utility model based on embedded vehicle license plate identification,
The following steps are included:
Step S1: license plate number storage is added to intelligent space lock 2 by mobile terminal 1；
Step S2: video sensor 22 captures license plate；
Step S3: embedded vehicle license plate identifying system 23 carries out Car license recognition；
Step S4: recognition result and storage character match；
Step S5: it sends instructions to control parking stall lock module and unlocks；
Step S6: feedback parking space state is shown in mobile terminal.
Referring to Fig. 3, for the image processing module 231 in the embedded vehicle license plate identifying system 23 of the step S3 in Fig. 2
Work flow diagram, comprising the following steps:
Step S31: it is loaded into license plate image；
Step S32: License Plate, it, which refers to from the license plate image of candid photograph, can be accurately positioned out license plate area, observe vehicle
Carrying scape on the body is cross grain, and characters on license plate is longitudinal texture, is started with here from textural characteristics, using based on edge detection and branch
Hold the algorithm of locating license plate of vehicle that vector machine combines；
Step S33: Character segmentation, it refers to that by one after License Plate include very multicharacter image segmentation into one
One character picture is started with from the profile of character here, looks for the boundary rectangle of this character to carry out again each character contouring
Cut out segmentation.
Step S34: character recognition, it, which refers to, obtains genuine character by processing for single character picture.Based on nerve
Network character recognition algorithm identification character speed it is fast, have robustness, therefore use the method, by training neural network come
Character picture is identified, the identification of license plate number is completed.
Step S35: character is saved.
It is the flow chart of the step S32 License Plate in Fig. 3 refering to Fig. 4, comprising the following steps:
Step S321: it is loaded into image, reads image using imread () function in OpenCV；
Step S322: greyscale transformation carries out gray processing to image with function cvtColor () and increases picture contrast；
Step S323: mean filter carries out mean filter with blur () function and removes isolated noise, image is made to become flat
It is sliding；
Step S324: vertical detection carries out Image Edge-Detection using Sobel () function, detects in mean filter result
Longitudinal texture；
Step S325: morphological transformation is carried out in closing operation of mathematical morphology connection form core using morphologyEx () function
Region；
Step S326: unrestrained water filling can use this feature since license plate has same background background color to overflow water filling
The identical region of color, convenient for next to the cutting of image；
Step S327: cutting out picture, carries out profile according to license plate depth-width ratio and cuts out；
Step S328: image is saved.
Referring to Fig. 5, for the flow chart of the step S33 Character segmentation in Fig. 3, comprising the following steps:
Step S331: being loaded into image, the image after License Plate is loaded into imread () function；
Step S332: binary transform carries out binary threshold using threshold () function, and the threshold value selected here is
200, the gray value that will be greater than the pixel of the threshold value becomes 255, and the gray value less than the pixel of the threshold value becomes 0；
Step S333: obtaining profile, obtains character outline using findContours () function；
Step S334: cutting out profile, carries out profile cutting by the ratio of width to height of character；
Step S335: image is saved.
Referring to Fig. 6, for the flow chart of the step S34 character recognition in Fig. 3, comprising the following steps:
Step S341: setting data, effect is in order to extract character feature, the horizontal projective histogram of character picture
And vertical projective histogram and the low-resolution image of 20 × 20 pixels be as feature, training and knowledge for neural network
Not；
Step S342: learning model, effect is to obtain the neural network model identified to character.Use three
Layer neural network, wherein input layer number is the length of character feature one-dimensional vector, and hidden layer number of nodes is 20, output layer
Number of nodes is 44, respectively 10 Arabic numerals, 24 English characters and 10 chinese characters.Excitation function is S type letter
Number, α and β value are respectively 1.The learning algorithm of neural network is elastic back-propagation algorithm.
Step S343: preservation model, when character recognition, directly carry out neural metwork training with this model；
Step S344: test model, parameter when effect is in order to learning model are adjusted, to improve identification
Rate.
The intelligent space lock based on embedded vehicle license plate identification of the utility model is realized automatic using license plate recognition technology
Identify vehicle, vehicle to open, vehicle walks locking functions；Under WiFi local area network, license plate number is added into intelligent vehicle by mobile terminal 1
The embedded vehicle license plate identifying system 23 of position lock 2 realizes the monitoring function to parking stall, while provided by the utility model based on vehicle
The intelligent space lock 2 of board identification has the advantages that real-time is high, at low cost.
The embodiments of the present invention are described above in conjunction with attached drawing, but the utility model is not limited to
The specific embodiment stated, the above mentioned embodiment is only schematical, rather than restrictive, this field it is common
Technical staff is not departing from the utility model aims and scope of the claimed protection situation under the enlightenment of the utility model
Under, many forms can be also made, these are belonged within the protection of the utility model.
Claims (6)
1. the intelligent space lock based on embedded vehicle license plate identification, which is characterized in that intelligent space lock (2) includes WiFi module
(21), video sensor (22), embedded vehicle license plate identifying system (23), wireless sensor (24) and berth lock control module
(25), embedded vehicle license plate identifying system (23) and WiFi module (21), video sensor (22), berth lock control module (25) point
Not Xiang Lian, wireless sensor (24) is connected to berth lock control module (25).
2. the intelligent space lock as described in claim 1 based on embedded vehicle license plate identification, which is characterized in that there are also for being arranged
The mobile terminal (1) of intelligent space lock, the mobile terminal (1) are communicated by wireless network with intelligent space lock (2), the shifting
Dynamic terminal (1) is provided with addition, deletion, display car owner's license plate number and the function of showing parking space state.
3. the intelligent space lock as claimed in claim 2 based on embedded vehicle license plate identification, which is characterized in that the WiFi mould
Block (21) is used to communicate to connect the mobile terminal (1) and intelligent space lock (2) by local area network Socket.
4. the intelligent space lock as described in claim 1 based on embedded vehicle license plate identification, which is characterized in that the video sensing
Device (22) uses camera, carries out shooting, collecting license plate image to the vehicle license plate when for detecting that vehicle enters parking stall.
5. the intelligent space lock as described in claim 1 based on embedded vehicle license plate identification, which is characterized in that the embedded vehicle
Board identifying system (23) includes image processing module (231), memory module (232) and matching module (233), matching module
(233) connect respectively with image processing module (231) and memory module (232), matching module (233) also with parking stall lock control mould
Block (25) connection；Described image processing module (231) is used for after the video sensor (22) collects license plate image, by institute
It states license plate image and loads and carry out Car license recognition, identify characters on license plate data and be transferred to matching module (233)；Memory module
(232) pass through mobile terminal (1) pre-added license plate number character data for storing；Matching module (233) is used for will be from figure
The pre-added license plate number word stored in the characters on license plate data received as processing module (231) and memory module (232)
Symbol data are matched.
6. the intelligent space lock as described in claim 1 based on embedded vehicle license plate identification, which is characterized in that the parking stall lock control
Molding block (25) is used to control the lifting of rocker of parking spot lock, and berth lock control module (25) is connected to embedded vehicle license plate identifying system
(23) matching module (233), after the embedded vehicle license plate identifying system (23) identification license plate number and successful match, to described
Berth lock control module (25) sends unlocking instruction, and rocker arm landing is unlocked；Berth lock control module (25) is also connected to wireless biography
Sensor (24) shuts instruction to control module transmission, shakes when the wireless sensor (24) detects parking stall without vehicle
Arm landing is shut.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820170350.6U CN208250967U (en) | 2018-01-31 | 2018-01-31 | Intelligent space lock based on embedded vehicle license plate identification |
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| CN201820170350.6U CN208250967U (en) | 2018-01-31 | 2018-01-31 | Intelligent space lock based on embedded vehicle license plate identification |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108203947A (en) * | 2018-01-31 | 2018-06-26 | 中国地质大学（武汉） | Intelligent space lock based on embedded vehicle license plate identification |
| CN114155631A (en) * | 2021-11-29 | 2022-03-08 | 哈尔滨工程大学 | Intelligent parking spot lock with identity authentication and wireless interconnection functions |
| WO2022166190A1 (en) * | 2021-02-05 | 2022-08-11 | 博泰车联网科技(上海)股份有限公司 | Intelligent ground lock and working method therefor |
-
2018
- 2018-01-31 CN CN201820170350.6U patent/CN208250967U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108203947A (en) * | 2018-01-31 | 2018-06-26 | 中国地质大学（武汉） | Intelligent space lock based on embedded vehicle license plate identification |
| WO2022166190A1 (en) * | 2021-02-05 | 2022-08-11 | 博泰车联网科技(上海)股份有限公司 | Intelligent ground lock and working method therefor |
| CN114155631A (en) * | 2021-11-29 | 2022-03-08 | 哈尔滨工程大学 | Intelligent parking spot lock with identity authentication and wireless interconnection functions |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181218 Termination date: 20200131 |
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| CF01 | Termination of patent right due to non-payment of annual fee |