CN106875695A - A kind of vehicle management system based on cloud computing platform - Google Patents
A kind of vehicle management system based on cloud computing platform Download PDFInfo
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- CN106875695A CN106875695A CN201710237779.2A CN201710237779A CN106875695A CN 106875695 A CN106875695 A CN 106875695A CN 201710237779 A CN201710237779 A CN 201710237779A CN 106875695 A CN106875695 A CN 106875695A
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
- G08G1/0175—Detecting movement of traffic to be counted or controlled identifying vehicles by photographing vehicles, e.g. when violating traffic rules
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/60—Type of objects
- G06V20/62—Text, e.g. of license plates, overlay texts or captions on TV images
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/60—Type of objects
- G06V20/62—Text, e.g. of license plates, overlay texts or captions on TV images
- G06V20/625—License plates
Abstract
Subsystem, vehicle information management subsystem and cloud computing platform are obtained the invention provides a kind of vehicle management system based on cloud computing platform, including information of vehicles；The information of vehicles obtains subsystem to be used to obtain information of vehicles in real time；The vehicle information management subsystem is used for the information of vehicles processed accessed by information of vehicles acquisition subsystem and sends data manipulation instruction to cloud computing platform according to result；The cloud computing platform is used to complete the real-time processing to information of vehicles and storage according to the data manipulation instruction.The present invention is more intelligent relative to the mode for being accomplished manually data manipulation, realizes the real-time processing to vehicle information data and storage by cloud computing platform, it is ensured that the real-time and uniformity of data.
Description
Technical field
The present invention relates to technical field of vehicle management, and in particular to a kind of vehicle management system based on cloud computing platform.
Background technology
Mobile management pattern in correlation technique uses the inventory at scene or takes pictures mostly, subsequently by being accomplished manually data
Include with operation, so very cumbersome, information of vehicles cannot real-time update.
The content of the invention
Regarding to the issue above, the present invention provides a kind of vehicle management system based on cloud computing platform.
The purpose of the present invention is realized using following technical scheme：
Subsystem, vehicle letter are obtained there is provided a kind of vehicle management system based on cloud computing platform, including information of vehicles
Breath management subsystem and cloud computing platform；The information of vehicles obtains subsystem to be used to obtain information of vehicles in real time；The vehicle
Information management subsystem is used for the information of vehicles processed accessed by information of vehicles acquisition subsystem and is sent according to result
Data manipulation instruction is to cloud computing platform；The cloud computing platform is used to be completed to information of vehicles according to the data manipulation instruction
Real-time processing with storage.
Beneficial effects of the present invention are：Subsystem, vehicle information management subsystem are obtained by information of vehicles and obtains vehicle
Information, and to information of vehicles treatment, it is more intelligent relative to the mode for being accomplished manually data manipulation, by cloud computing platform reality
The now real-time processing to vehicle information data and storage, it is ensured that the real-time and uniformity of data.
Brief description of the drawings
Using accompanying drawing, the invention will be further described, but embodiment in accompanying drawing is not constituted to any limit of the invention
System, for one of ordinary skill in the art, on the premise of not paying creative work, can also obtain according to the following drawings
Other accompanying drawings.
Fig. 1 block diagram representations of the invention；
Fig. 2 is the block diagram representation that information of vehicles of the present invention obtains subsystem；
Fig. 3 is the block diagram representation of Car license recognition module of the present invention.
Reference：
Information of vehicles obtains subsystem 1, vehicle information management subsystem 2, cloud computing platform 3, Car license recognition module 10, car
Information package module 20, vehicle image capture unit 100, vehicle image denoising unit 200, vehicle image cutting unit 300,
License board information extraction unit 400.
Specific embodiment
The invention will be further described with the following Examples.
Obtained referring to a kind of vehicle management system based on cloud computing platform that Fig. 1, the present embodiment are provided, including information of vehicles
Take subsystem 1, vehicle information management subsystem 2 and cloud computing platform 3；The information of vehicles obtains subsystem 1 to be used to obtain in real time
Take information of vehicles；The vehicle information management subsystem 2 is used to process the vehicle letter accessed by information of vehicles acquisition subsystem 1
Cease and data manipulation instruction to cloud computing platform 3 is sent according to result；The cloud computing platform 3 is used for according to the data
Operational order completes the real-time processing and storage to information of vehicles.
Preferably, the vehicle information management subsystem 2 includes communication module；The communication module is used to realize that vehicle is believed
Two-way communication between breath management subsystem 2 and cloud computing platform 3.
Preferably, the vehicle information management subsystem 2 also includes information of vehicles encrypting module, the information of vehicles encryption
Module is used to be encrypted acquired information of vehicles, to prevent divulging a secret for information from being invaded with outside.
In the above embodiment of the present invention, subsystem 1, vehicle information management subsystem 2 are obtained by information of vehicles and obtains car
Information, and to information of vehicles treatment, it is more intelligent relative to the mode for being accomplished manually data manipulation, by cloud computing platform
3 realize the real-time processing and storage to vehicle information data, it is ensured that the real-time and uniformity of data.
Preferably, as shown in Fig. 2 information of vehicles acquisition subsystem 1 is beaten including Car license recognition module 10, information of vehicles
Bag module 20, the Car license recognition module 10 is used to gather the vehicle image comprising car plate, and to the vehicle image comprising car plate
Treatment is identified, license plate number information is obtained；The information of vehicles packetization module 20 is used for by the license plate number information, corresponding to this
The vehicle location and acquisition time of license plate number information are packaged into information of vehicles, send to vehicle information management subsystem 2.
This preferred embodiment realizes the real-time acquisition of information of vehicles.
Preferably, referring to Fig. 3, the Car license recognition module 10 includes the vehicle image capture unit 100, car being sequentially connected
Image denoising unit 200, vehicle image cutting unit 300 and license board information extraction unit 400；The vehicle image collection is single
Unit 100 is used to gather the vehicle image comprising car plate；The vehicle image denoising unit 200 is used to enter the vehicle image for gathering
Row filtering process；The vehicle image cutting unit 300 is used to carry out filtered vehicle image dividing processing, obtains car plate
Region；The license board information extraction unit 400 is used to extract the license plate number information in license plate area.
Preferably, when being filtered treatment to vehicle image, choose 3 × 3 filter windows carries out intermediate value filter to vehicle image
Ripple, specifically includes：
(1) initial position (i, j) of filtering is determined, if (i, j) place in the gray scale value matrix of ρ (i, j) expression vehicle images
The gray value of pixel, then gray value of the filter window at (i, j) place be expressed as：
(2) mobile filter window, so as to the gray value of filter window original secondary series correspondence row is assigned into first row, the former 3rd
The gray value of row correspondence row is assigned to secondary series, and the gray value of the latter row pixel of filter window is made before reading vehicle image correspondence is mobile
It is the 3rd row gray value of the filter window after movement；
(3) the 3rd row gray value is arranged by order from small to large, is calculated the centre of current location filter window
Gray value, and the intermediate grey values that will be calculated are assigned to the described correspondence latter row pixel of mobile preceding filter window, definition is worked as
The computing formula of the intermediate grey values of front position filter window is：
In formula,Represent the intermediate grey values of current location filter window, max (ρ1) represent current location filter window in
The maximum of the first row gray value, mid (ρ2) represent current location filter window in the second row gray value intermediate value, min (ρ3) table
Show the minimum value of the third line gray value in the filter window of current location；
(4) repeat step (2) and (3), until completing all pixels quilt in the range of the setting filtering process of vehicle image
Assignment.
This preferred embodiment carries out denoising using aforesaid way to vehicle image, can quickly determine and be assigned to process pixel
Intermediate grey values, reduce median filtering algorithm in grey scale pixel value sequence number of times, relative to traditional median filtering algorithm,
Filtering speed faster, such that it is able to retain license plate area marginal information on the premise of improve denoising speed, from entirety
On improve information of vehicles acquisition speed, it is ensured that the efficiency of vehicle management system.
Preferably, it is described that dividing processing is carried out to filtered vehicle image, specifically include：
(1) rim detection is carried out to vehicle image using improved Sobel edge detection algorithms；
(2) based on mathematical morphology, the license plate area obtained to rim detection using 5 × 5 square structure elements carries out corruption
Erosion is processed, and expansion process is carried out to license plate area using 5 × 5 circular configuration elements.
This preferred embodiment is processed vehicle image with reference to Sobel edge detection algorithms and mathematical morphology, can
To again be connected by the region that rim detection disconnects in license plate area on the premise of ensureing that global geometric distortion will not be produced, carefully
Change the edge of license plate area, be easy to the acquisition and identification of license plate number information in vehicle image, be that vehicle management system is effectively obtained
Information of vehicles is had laid a good foundation.
Preferably, it is described that rim detection is carried out to vehicle image using improved Sobel edge detection algorithms, specific bag
Include：
(1) convolution algorithm is carried out to vehicle image using 0 °, 45 °, 90 °, the 135 ° template of four direction, calculates vehicle figure
As in each pixel shade of gray value, define shade of gray value computing formula be：
In formula, M (i, j) represents the shade of gray value of pixel (i, j) in vehicle image, and ρ (i, j) represents the picture of vehicle image
The gray value of plain (i, j), * represents convolution algorithm, Jk(k=1,2.., 4) is boundary operator, wherein J1It is 0 ° of boundary operator, J2It is 45 ° of sides
Edge operator, J3It is 90 ° of boundary operators, J4It is 135 ° of boundary operators,
(2) the shade of gray value of each pixel is compared with the threshold value of setting, if the shade of gray value of pixel is more than
The threshold value of setting, using the pixel as test point；
(3) filtration treatment is carried out to test point, each test point is processed using 20 × 20 rectangular filter window, obtained
The greatest gradient value in each test point correspondence rectangular filter window, if test point (α, β) meets following judgement formula, then examines this
Measuring point is set to background dot：
M(α,β)<0.8max(Mα,β)
In formula, Mα,βRepresent the greatest gradient value in test point (α, β) correspondence rectangular filter window；
(4) using remaining test point as marginal point.
On the one hand, this preferred embodiment carries out process of convolution to vehicle image using the template of four direction, and again fixed
The justice computing formula of shade of gray value, on the premise of rim detection effect is ensured, can reduce the fortune of Sobel rim detections
Calculation amount, raising carries out the speed of dividing processing to vehicle image, while there is preferable rejection ability to the noise of vehicle image,
Extracted for follow-up license plate number and laid the first stone.
On the other hand, this preferred embodiment using the test point obtained after the treatment of Sobel edge detection algorithms to being carried out
Filter is processed, the pseudo-edge that removal rim detection is likely to form, so as to refine the edge feature of vehicle image license plate number, Neng Goujin
One step improves the precision of vehicle image segmentation.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of scope is protected, although being explained to the present invention with reference to preferred embodiment, one of ordinary skill in the art should
Work as understanding, technical scheme can be modified or equivalent, without deviating from the reality of technical solution of the present invention
Matter and scope.
Claims (6)
1. a kind of vehicle management system based on cloud computing platform, it is characterized in that, including information of vehicles obtains subsystem, vehicle letter
Breath management subsystem and cloud computing platform；The information of vehicles obtains subsystem to be used to obtain information of vehicles in real time；The vehicle
Information management subsystem is used for the information of vehicles processed accessed by information of vehicles acquisition subsystem and is sent according to result
Data manipulation instruction is to cloud computing platform；The cloud computing platform is used to be completed to information of vehicles according to the data manipulation instruction
Real-time processing with storage.
2. a kind of vehicle management system based on cloud computing platform according to claim 1, it is characterized in that, the vehicle letter
Breath management subsystem includes communication module；The communication module be used to realize vehicle information management subsystem and cloud computing platform it
Between two-way communication.
3. a kind of vehicle management system based on cloud computing platform according to claim 2, it is characterized in that, the vehicle letter
Breath management subsystem also includes information of vehicles encrypting module, and the information of vehicles encrypting module is used to acquired information of vehicles
It is encrypted, to prevent divulging a secret for information from being invaded with outside.
4. a kind of vehicle management system based on cloud computing platform according to claim 1, it is characterized in that, the vehicle letter
Breath obtains subsystem includes Car license recognition module, information of vehicles packetization module, and the Car license recognition module is used for collection and includes car
The vehicle image of board, and treatment is identified to the vehicle image comprising car plate, obtain license plate number information；The information of vehicles is beaten
Bag module is used to be packaged into vehicle letter by the license plate number information, corresponding to the vehicle location and acquisition time of the license plate number information
Breath, sends to vehicle information management subsystem.
5. a kind of vehicle management system based on cloud computing platform according to claim 4, it is characterized in that, the car plate is known
Other module includes the vehicle image capture unit, vehicle image denoising unit, vehicle image cutting unit and the car plate that are sequentially connected
Information extraction unit；The vehicle image capture unit is used to gather the vehicle image comprising car plate；The vehicle image denoising
Unit is used to be filtered treatment to the vehicle image for gathering；The vehicle image cutting unit is used for filtered vehicle figure
As carrying out dividing processing, license plate area is obtained；The license plate number letter that the license board information extraction unit is used to extract in license plate area
Breath.
6. a kind of vehicle management system based on cloud computing platform according to claim 5, it is characterized in that, to vehicle image
When being filtered treatment, choose 3 × 3 filter windows carries out medium filtering to vehicle image, specifically includes：
(1) initial position (i, j) of filtering is determined, if (i, j) place pixel in the gray scale value matrix of ρ (i, j) expression vehicle images
Gray value, then gray value of the filter window at (i, j) place be expressed as：
(2) mobile filter window, so as to the gray value of filter window original secondary series correspondence row is assigned into first row, former 3rd row are right
The gray value that should be gone is assigned to secondary series, reads the gray value of the vehicle image correspondence latter row pixel of mobile preceding filter window as shifting
3rd row gray value of the filter window after dynamic；
(3) the 3rd row gray value is arranged by order from small to large, is calculated the middle gray of current location filter window
Value, and the intermediate grey values that will be calculated are assigned to the described correspondence latter row pixel of mobile preceding filter window, define present bit
The computing formula for putting the intermediate grey values of filter window is：
In formula,Represent the intermediate grey values of current location filter window, max (ρ1) represent the first row in the filter window of current location
The maximum of gray value, mid (ρ2) represent current location filter window in the second row gray value intermediate value, min (ρ3) represent current
The minimum value of the third line gray value in position filtering window；
(4) repeat step (2) and (3), until all pixels completed in the range of the setting filtering process of vehicle image are assigned.
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Application publication date: 20170620 |