CN106101642A - A kind of long-distance meter-reading system based on machine vision - Google Patents
A kind of long-distance meter-reading system based on machine vision Download PDFInfo
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- CN106101642A CN106101642A CN201610567825.0A CN201610567825A CN106101642A CN 106101642 A CN106101642 A CN 106101642A CN 201610567825 A CN201610567825 A CN 201610567825A CN 106101642 A CN106101642 A CN 106101642A
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- ethernet chip
- view data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00095—Systems or arrangements for the transmission of the picture signal
- H04N1/00103—Systems or arrangements for the transmission of the picture signal specially adapted for radio transmission, e.g. via satellites
- H04N1/00106—Systems or arrangements for the transmission of the picture signal specially adapted for radio transmission, e.g. via satellites using land mobile radio networks, e.g. mobile telephone
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
Abstract
The present invention discloses a kind of long-distance meter-reading system based on machine vision, including: IP Camera, processor, Ethernet chip, server, described server comprises: browser, Matlab image processing module and display module.The IP of browser timer access hardware, http request is sent to Ethernet chip, the web page program of html5 is sent to browser by Ethernet chip after receiving the request, browser actively can be set up WebSocket with Ethernet chip and be connected, after completing handshake operation, set up the data channel of image transmitting；Whenever being polled to after new image is ready to, by WebSocket, view data will be sent to browser；By Matlab image processing module, view data is processed, the view data after being identified；Display module shows data and the table tool picture of each observation station based on the view data after identifying with web interface form.Using technical scheme, can have data message by all kinds of table of acquisition accurate, quick and easy, giving checks meter brings convenience.
Description
Technical field
The invention belongs to remote control technology field, particularly relate to a kind of long-distance meter-reading system based on machine vision.
Background technology
Along with the fast development of China's economy, town dweller is increasing to the demand of water, gas and electricity resource, the most right
Water, electricity and gas supplier proposes the biggest challenge at aspect of checking meter.At present at the field of making an inventory of table tool, commonly used meter reading method
Manual metering IC-card, pre-payment is had to check meter and the multiple meter reading method such as wireless transmit formula water meter, but traditional manual metering side
Formula existence takes time and effort, precision is low, the most high drawback of poor reliability, real-time, and the IC-card pre-payment for technology maturation is checked meter
With the intelligent meter data recording mode such as wireless transmit formula water meter, although easy for installation, system administration is intelligent, but, if the number of table tool
Break down according to transport module or user still uses old-fashioned table to have, then these intelligent meter data recording modes just cannot meet existing
The operation of system.So, the most also occur in that a lot of kilowatt meter reading-out system based on image recognition, but these systems can be because of scene
Environmental factors, the problems such as the bit error rate is high and cannot proofread occur, bring very big inconvenience to water, electricity and gas supplier and estate management.
Summary of the invention
The technical problem to be solved in the present invention, it is provided that a kind of long-distance meter-reading system based on machine vision, can accurately, soon
Data message prompt, all kinds of tables of acquisition tool easily, giving checks meter brings convenience.
For solving the problems referred to above, the present invention adopts the following technical scheme that:
A kind of long-distance meter-reading system based on machine vision includes: IP Camera, processor MCU, Ethernet chip, clothes
Business device；Described IP Camera, for shooting table is had photo site, and reaches MCU by view data；Described processor MCU,
For receiving image data, and the view data of relief area is sent to Ethernet chip；Described server comprises: browser,
Matlab image processing module and display module, wherein,
The IP of described browser timer access Ethernet chip, sends Http request, Ethernet chip to Ethernet chip
The web page program of Html5 is sent to browser after receiving the request, and browser actively sets up WebSocket with Ethernet chip
Connecting, after completing handshake operation, the data channel of image transmitting i.e. establishes, whenever being polled to after new image is ready to,
By WebSocket, view data will be sent to browser；
Matlab image processing module, for view data carries out Image semantic classification, gradient is corrected and character divides
Cut and with identification, the view data after being identified；
Display module, for based on identify after view data with web interface form show each observation station data and
Table tool picture.
As preferably, Ethernet chip sets up WebSocket and HttpServer by the two of Socket depositors, logical
Cross described WebSocket, can set up and server end communication link, with transmission network camera image data, by described
Http Server, can input the IP address of configuration on a web browser, to realize the picture number of remote access network photographic head shooting
According to.
As preferably, the described pretreatment of Matlab image processing module comprises: image enhaucament, image denoising and two-value
Change；Described gradient correction process comprises: frame location, extraction parallel lines and gradient correction；Described Character segmentation and with knowledge
Other places reason comprises: normalized, Character segmentation, template matching.
As preferably, also include: described light compensating apparatus, for, while IP Camera shooting table tool LCD photo, entering
Row light filling processes.
As preferably, also including: solar power supply apparatus, described solar power supply apparatus includes too can tabula rasa, electric current
Controller, accumulator, solar energy tabula rasa is connected with current controller, and current controller is connected with accumulator, and current controller divides
It is not connected with IP Camera, light compensating apparatus, processor MCU, Ethernet chip.
The tele-control system of the present invention, use browser timer access Ethernet chip IP, by communication network to
Ethernet chip sends Http request, and the web page program of Html5 is sent to browser by Ethernet chip after receiving the request,
In web page program, browser actively can be set up WebSocket with Ethernet chip and be connected.After completing handshake operation, image passes
Defeated data channel i.e. establishes.So whenever being polled to after new image is ready to, will be by WebSocket by picture number
According to being sent to browser, after browser receives data, drawing image on interface, picture is deposited to server settings catalogue simultaneously
Under, process for Matlab image processing system.Server uses Web page by the data of each observation station of data, table tool picture
Presenting to user with ASSOCIATE STATISTICS, this web interface can be issued in corporate lan, and company personnel looks in its authority
See information and photo site that each table has.
Compared with prior art, the kilowatt meter reading-out system of the present invention is with web interface display table tool data and image, based on server
The Matlab image processing system of end improves reliability and accuracy, and having the picture at scene is reference, it is provided that a kind of
Redundancy scheme, decreases on-the-spot end image procossing and the trouble of protocol conversion, it is contemplated that exist cannot carry in some remote districts
The situation of power supply source, selects solar powered, it is ensured that the adaptability of installation site.
Accompanying drawing explanation
Fig. 1 is the structural representation of the long-distance meter-reading system based on machine vision of the present invention；
Fig. 2 is the workflow diagram of the long-distance meter-reading system based on machine vision of the present invention.
Detailed description of the invention
Below with reference to detailed description of the invention shown in the drawings, the present invention is described in further detail.
As it is shown in figure 1, the embodiment of the present invention provide a kind of long-distance meter-reading system based on machine vision, provide the user and
Time, table tool reading accurately, also provide the user the photo of on-the-spot table tool, in order to carry out checking and historical query.
Described long-distance meter-reading system uses the mode that IP Camera and Http5 webpage combine, including: far-end collection fills
Put, communication network, server, solar electric power supply system, described far-end harvester comprises: IP Camera (OV2640), mend
Electro-optical device (LED), processor MCU (STM32F4), Ethernet chip (W5500), router.
Described IP Camera, is used for that shooting table is had photo site, and uses its internal DSP to obtain JPEG after compressing
The picture of form, reaches MCU by view data by the way of parallel bus.
Described light compensating apparatus, for, while IP Camera shooting table tool LCD photo, carrying out light filling process, make bat
The picture taken the photograph is clear.
Described processor MCU, for utilizing its internal Flash to receive image data, and by the view data of relief area
Send to Ethernet chip.
Described Ethernet chip is a devices at full hardware TCP/IP embedded Ethernet controller, provides more for embedded system
Easy the Internet connection scheme.Described Ethernet chip is integrated with ICP/IP protocol stack, 10/100M ethernet data link layer
(MAC) and physical layer (PHY) so that user uses single-chip just can expand network in their application to connect.At this it is
System has been used Socket port register.After WebSocket data monitoring to buffer data is ready, it is possible to will
Image is sent to browser.
Described communication network is 3G net or the Internet.
The described router i.e. router of control centre, data reach control centre through public network, but the service of control centre
Device can not allow extranet access, for the safety of system data, is provided with the IP port mapping of fire wall and router.
Described solar power supply apparatus includes too can tabula rasa, current controller, accumulator.Described solar powered dress
In putting, solar energy tabula rasa is connected with current controller, and current controller is connected with accumulator, and current controller is connected with load,
I.e. current controller is connected with IP Camera, light compensating apparatus, processor MCU, Ethernet chip respectively.Current controller controls
The tabula rasa charging to accumulator, control accumulator to load power supply, electric supply installation can solve well field, wilderness or
The power supply of power supply, image capturing system and the transmitting device of city's ammeter tool cannot be provided.Solar electric power supply system, by electric current control
Device processed, controls tabula rasa power supply to load to the charging of accumulator and accumulator, reaches to protect accumulator and the effect of load.
Described server, is positioned at control centre, and it includes browser, Matlab image processing module and display module,
Wherein,
Described browser, for the IP of timer access Ethernet chip, sends http request, Ethernet to Ethernet chip
The web page program of Html5 is sent to browser by chip after receiving the request, and in web page program, browser can active and ether
Web-roll core sheet is set up WebSocket and is connected.After completing handshake operation, the data channel of image transmitting i.e. establishes.So whenever
Being polled to after new image is ready to, by WebSocket, view data to be sent to browser, browser receives data
After, drawing image on interface, picture is deposited to server settings catalogue simultaneously, process for Matlab image processing system.
Matlab image processing module, carries out three step process by sending to the picture set under catalogue according to request, and first
Step is Image semantic classification, including: image enhaucament, image denoising and binaryzation.Water meter image is increased by Image semantic classification exactly
By force with removal noise and binary conversion treatment, wherein the purpose of image enhaucament is the visual effect in order to improve image, abundant information
Amount, strengthens information useful in image；Removed the noise inevitably introduced in image acquisition process by Filtering Processing, adopt
Extract information by binary conversion treatment, target and background is separated, thus improves picture quality, exclusive PCR factor.Second step is:
Gradient is corrected, and including frame location, extracts parallel lines and gradient correction, in the gatherer process carrying out water meter image, takes the photograph
As the installation site of head is different with the angle of shooting, can make the image collected that certain inclination occurs.So it is accomplished by inclining
Skewing scheme picture is corrected.First have to carry out frame location, then need to extract the contour edge of water meter frame, carrying out angle
The method mainly using Hough transform detection of straight lines during estimation.After obtaining angle of inclination, can be by affine maps to figure
As correcting.3rd step be Character segmentation and with identification, including normalized, Character segmentation, template matching.To above-mentioned
After process, image is split, and is then normalized, should be these characters to be identified and the binaryzation preserved in advance
Digital template compares one by one, and what similarity was high is exactly the result identified, the character obtained is carried out character combination, is just known
Other result.
Display module, is compiled into java class by Matlab image processing program, by Web platform to this java class at
Reason；The data that Matlab processes are stored under Mysql data base, and table are had data and on-the-spot picture according to web-page requests
Issue on web interface, for accessing in corporate lan；Web interface shows the data of each observation station, and table tool picture is with relevant
Statistics.
Below as a example by a system duty cycle, it is specifically described operation principle and the flow process of this system.
As in figure 2 it is shown, the Html5 page regularly sends to far-end harvester automatically in the way of webpage refreshing obtains picture
Request, view data, after the request of receiving, is sent to browser by WebSocket by far-end harvester, and by instrument
Dish image information is stored under server database, utilizes Matlab image processing system.First, image is carried out image enhaucament,
Image denoising and binaryzation pretreatment, then, carry out frame location, extract parallel lines and gradient correction process, finally by
Normalization, Character segmentation and template matching, add arithmetic point, and analysis result according to call format after obtaining result, by image
The result identified directly is stored under data base in the way of data stream.Image information and knowledge in reading database under web interface
Other digital information, system structure is simple, and the flowing of data stream is clear, constructs the redundancy scheme of numeral identification, improves data
Accuracy, decreases workload and the protocol conversion of on-the-spot end identification.
The long-distance meter-reading system of the present invention, combines computer technology, image procossing, modern communication technology, energy
The most in time, accurately and comprehensively reflect resident's service condition to aqueous vapor electric resources, existing meter reading method can be made up very well and exist
Shortcoming.The design have employed the meter register method of machine vision, and IP Camera is fixed on just going up of table tool LCD display
Side, according to request shooting photo, while shooting, the flash lamp being fixed on photographic head both sides carries out light filling, then by this article
Part is compressed into jpeg format, utilizes two Socked resources within popular Ethernet chip, and one is used for creating Web
Socket Server, webpage sets up communication link, for transmission network camera image data；Another is used for creating Http
Server, inputs the IP address of configuration the most on a web browser, and browser just can remotely access the photo of shooting as client；
And picture is reached under the setting catalogue of server, then with Matlab image processing system under server to image at
Reason, and Matlab image processing program is compiled into java class, as long as these classes can be deployed to any service being mounted with MCR
On device, finally, by web interface to user's publishing table tool information and photo site information.This system is based on server end
Matlab image recognition improves the reliability and accuracy checked meter, and with on-the-spot picture as reference, it is provided that a kind of superfluous
Remaining mechanism, decreases a lot of on-the-spot end image procossing based on image procossing kilowatt meter reading-out system and the trouble of protocol conversion, and hardware is pacified
Assembling.
Above example is only the exemplary embodiment of the present invention, is not used in the restriction present invention, protection scope of the present invention
It is defined by the claims.The present invention can be made respectively in the essence of the present invention and protection domain by those skilled in the art
Planting amendment or equivalent, this amendment or equivalent also should be regarded as being within the scope of the present invention.
Claims (5)
1. a long-distance meter-reading system based on machine vision, it is characterised in that including: IP Camera, processor MCU, with
Too web-roll core sheet, server；Described IP Camera, for shooting table is had photo site, and reaches MCU by view data；Institute
State processor MCU, be used for receiving image data, and the view data of relief area is sent to Ethernet chip；Described server
Comprise: browser, Matlab image processing module and display module, wherein,
The IP of described browser timer access Ethernet chip, sends Http request to Ethernet chip, and Ethernet chip is being received
The web page program of Html5 is sent to after request browser, and browser actively sets up WebSocket even with Ethernet chip
Connecing, after completing handshake operation, the data channel of image transmitting i.e. establishes, whenever being polled to after new image is ready to, just
By WebSocket, view data can be sent to browser；
Matlab image processing module, for view data being carried out Image semantic classification, gradient correct and Character segmentation and
With identification, the view data after being identified；
Display module, for showing data and the table tool of each observation station based on the view data after identifying with web interface form
Picture.
Long-distance meter-reading system based on machine vision the most according to claim 1, it is characterised in that Ethernet chip is passed through
WebSocket and HttpServer set up by two depositors of Socket, by described WebSocket, can set up and server
End communication link, with transmission network camera image data, by described Http Server, can input configuration on a web browser
IP address, with realize remote access network photographic head shooting view data.
Long-distance meter-reading system based on machine vision the most according to claim 1, it is characterised in that Matlab image procossing
The described pretreatment of module comprises: image enhaucament, image denoising and binaryzation；Described gradient correction process comprises: frame is fixed
Position, extraction parallel lines and gradient correction；Described Character segmentation and comprising with identifying processing: normalized, Character segmentation, mould
Plate mates.
Long-distance meter-reading system based on machine vision the most according to claim 1, it is characterised in that also include: described benefit
Electro-optical device, for, while IP Camera shooting table tool LCD photo, carrying out light filling process.
Long-distance meter-reading system based on machine vision the most according to claim 1, it is characterised in that also include: solar energy
Electric supply installation, described solar power supply apparatus include too can tabula rasa, current controller, accumulator, solar energy tabula rasa and electric current
Controller be connected, current controller is connected with accumulator, current controller respectively with IP Camera, light compensating apparatus, processor
MCU, Ethernet chip connect.
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| CN201610567825.0A CN106101642A (en) | 2016-07-19 | 2016-07-19 | A kind of long-distance meter-reading system based on machine vision |
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| CN201610567825.0A CN106101642A (en) | 2016-07-19 | 2016-07-19 | A kind of long-distance meter-reading system based on machine vision |
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Cited By (6)
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| CN108063924A (en) * | 2018-01-26 | 2018-05-22 | 江苏轩博电子科技有限公司 | A kind of intelligent meter data recording system of Household mechanical table |
| CN108460387A (en) * | 2018-03-26 | 2018-08-28 | 国网安徽省电力有限公司检修分公司 | Intelligent electric power meter makes a copy of computing system and method |
| CN109288637A (en) * | 2018-09-14 | 2019-02-01 | 山东建筑大学 | A kind of healing robot managing and control system and its communication means |
| CN110631661A (en) * | 2018-06-21 | 2019-12-31 | 江苏金钰铭电子有限公司 | Water meter verification system capable of being remotely monitored and controlled based on Internet |
| CN111272257A (en) * | 2020-02-20 | 2020-06-12 | 上海电机学院 | Transformer oil level monitoring system based on machine vision |
| CN111641656A (en) * | 2020-06-04 | 2020-09-08 | 上海图丽信息技术有限公司 | Hospital data real-time screen projection system |
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Cited By (8)
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| CN110631661A (en) * | 2018-06-21 | 2019-12-31 | 江苏金钰铭电子有限公司 | Water meter verification system capable of being remotely monitored and controlled based on Internet |
| CN109288637A (en) * | 2018-09-14 | 2019-02-01 | 山东建筑大学 | A kind of healing robot managing and control system and its communication means |
| CN109288637B (en) * | 2018-09-14 | 2020-09-08 | 山东建筑大学 | Rehabilitation robot management and control system and communication method thereof |
| CN111272257A (en) * | 2020-02-20 | 2020-06-12 | 上海电机学院 | Transformer oil level monitoring system based on machine vision |
| CN111641656A (en) * | 2020-06-04 | 2020-09-08 | 上海图丽信息技术有限公司 | Hospital data real-time screen projection system |
| CN111641656B (en) * | 2020-06-04 | 2022-12-16 | 上海图丽信息技术有限公司 | Hospital data real-time screen projection system |
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