CN109508273A - A kind of electric automobile charging station monitoring system and data capture method based on Web - Google Patents
A kind of electric automobile charging station monitoring system and data capture method based on Web Download PDFInfo
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- CN109508273A CN109508273A CN201811105352.8A CN201811105352A CN109508273A CN 109508273 A CN109508273 A CN 109508273A CN 201811105352 A CN201811105352 A CN 201811105352A CN 109508273 A CN109508273 A CN 109508273A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000013481 data capture Methods 0.000 title abstract description 5
- 230000002159 abnormal effect Effects 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 7
- 230000008901 benefit Effects 0.000 claims description 5
- 238000005538 encapsulation Methods 0.000 claims description 3
- 230000000977 initiatory effect Effects 0.000 claims 1
- 230000004044 response Effects 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/3003—Monitoring arrangements specially adapted to the computing system or computing system component being monitored
- G06F11/3013—Monitoring arrangements specially adapted to the computing system or computing system component being monitored where the computing system is an embedded system, i.e. a combination of hardware and software dedicated to perform a certain function in mobile devices, printers, automotive or aircraft systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
- Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
- Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
- Y04S30/12—Remote or cooperative charging
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- Engineering & Computer Science (AREA)
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- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Mathematical Physics (AREA)
- Quality & Reliability (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Traffic Control Systems (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a kind of electric automobile charging station monitoring system and data capture method based on Web, including net system outside Web, the outer net system includes real-time database, Web database, Web server, client, historical data is read from Web database by Web server and returns to client, and real time data is obtained to real-time database by tcp long connection from Web server and returns to client.The present invention obtains real time data to real-time database on the basis of B/S, through tcp long connection, and the end B/S completes logical process and realizes picture exhibition with SVG.Browser sends Ajax request of data to web server, obtains real time data or reading database acquisition historical data by tcp long connection after web services analysis request type and returns.It realizes that charging is significantly larger than performance requirement with historical data response speed in real time, realizes that dynamic data refreshes in real time, each page picture normally also shows very high reliability.
Description
Technical field
The present invention relates to electric vehicle charging fields, and specifically a kind of electric automobile charging station based on Web monitors system
System.
Background technique
Charging station releases a series of support policies as new-energy automobile development foundation Facilities Construction, country.In policy branch
It holds down, charging infrastructure construction in China's is fully under way, and charging market becomes more and more active.This just proposes higher want to charging station control
It asks.For SCADA system as data acquisition and monitoring control system, being widely used in all kinds of managing and control systems includes charging station monitoring
Management.It is growing with charging station scale, tightened up requirement is proposed to SCADA comprehensive performance.And current SCADA system base
C/S framework is used in sheet, shows numerous limitations, including difficult to install and later maintenance cost is high etc..Based on B/S's
SCADA system is increasingly becoming a kind of trend.Have many researchs, document [Ai Ming currently based on the charging station monitoring system of Web
Great, Qi Linhai is based on electric automobile charging station online monitoring system [J] the Shaanxi Power orderly to charge, 2014,42 (06): 6-
11.] designed by the Web monitoring system that orderly charges develop a kind of preferable charge control strategy, but system cross platform with it is clear
Look in device compatibility that there is also deficiencies.[Wu Canpei, Hu Shunhao, Wang Haihang wait Web of the based on Ajax and SVG remotely real to document
When monitoring system [J] computer engineering and design, 2011,32 (09): 3004-3007+3013.] and document [Dai Linna is based on
The analysis of the Web application system of Ajax and design [J] computer knowledge and technology, 2015,11 (05): 70-71+73] prison realized
Control system solves the problems, such as system cross platform, but real time data weakens system real time from database extraction.
Summary of the invention
Object of the present invention is to be intended to provide a kind of electric automobile charging station monitoring system based on Web, on the basis B/S
On, real time data is obtained to real-time database by tcp long connection, the end B/S completes logical process and realizes picture exhibition with SVG.It is clear
Device of looking to Web server sends Ajax request of data, real-time several by tcp long connection acquisition after Web service analysis request type
According to or reading database obtain and historical data and return.Charging is significantly larger than performance requirement with historical data response speed in real time,
Realize that dynamic data refreshes in real time, each page picture normally also shows very high reliability.
To realize the above-mentioned technical purpose, The technical solution adopted by the invention is as follows:
A kind of electric automobile charging station monitoring system based on Web, including net system outside Web, the outer net system
Including real-time database, Web database, Web server, client, historical data is read from Web database by Web server and is returned
Back to client, real time data is obtained to real-time database by tcp long connection from Web server and returns to client.
Web service, which is interacted by tcp long connection with real-time database, returns to client guarantee real-time for real time data.Tcp is short
Connection is completed primary read-write and is automatically closed, and tcp long connection one is set up and will be always maintained at.It is long in the case of frequent refresh data
Connection is long-term to keep every time than short connection the consumption Connection Time more applicable.
One kind as a kind of electric automobile charging station monitoring system based on Web of the present invention is preferred, the Web server
It is locally forwarded including Web layers, service layers, udp, the Web layers of communication interface for Web server and client receives parsing visitor
The request of family end, judges request type, if request real time data, forwards with tcp long connection communication by the way that udp is local from real-time
Real time data is obtained in library, and returns result to client.
One kind as a kind of electric automobile charging station monitoring system based on Web of the present invention is preferred, the Web server
It further include DAO layers, if service layers judge request type to read historical data, DAO layer data access interface is to Web
Data see acquisition historical data, and return result to client.
Preferably, the client makes one kind as a kind of electric automobile charging station monitoring system based on Web of the present invention
Graphical interfaces is realized with SVG, is realized data Local hydrodynamic unit by sending Ajax request of data to Web server, is utilized client
It is locally stored, will not need to update but multiple data need to be used in local cache, the data of return use JSON format.
SVG indicates saleable vector graphics, and advantage withdraws deposit: pantography does not influence that print quality, file be small, dynamic
Property, text and figure are independent, interactivity is strong and support completely mobile terminal with etc..
Ajax is the abbreviation of Asynchronous JavaScript and XML, and client is sent to the back-end by Ajax
Asynchronous Request fetches data and carries out Local hydrodynamic unit to the page.
Preferably, the client makes one kind as a kind of electric automobile charging station monitoring system based on Web of the present invention
It initiates to request to Web server with specific URL, initiates POST when including to need encrypted fields or larger data volume in request and ask
It asks；GET request is initiated when request data quantity is smaller.
One kind as a kind of electric automobile charging station monitoring system based on Web of the present invention is preferably, compatible to guarantee,
Client realizes that code is unified using the Ajax of jQuery encapsulation.
One kind as a kind of electric automobile charging station monitoring system based on Web of the present invention further includes interior net preferably
System, the interior net system include SCADA server, and the SCADA server is by real time data and historical data by just
It is transferred to real-time database and Web database respectively to isolating device.
The present invention also provides a kind of electric automobile charging station monitoring system data capture method based on Web, including such as
Lower step:
(1) Web forwarding request is received,
The udp data request packet sent by service layers of Web server is monitored in local port and is verified, after verifying
Request enters transmit queue；
(2) request of data is sent to real-time database,
Heartbeat packet is sent to real-time database every 500ms, when there is request in transmit queue, head of the queue request Concurrency is taken out and send,
It sends and successfully removes head of the queue request, when throw exception, mark is sent into abnormal mark amount；
(3) real-time database returned data is received,
Covering receives heart time point when receiving heartbeat packet, preliminary identification and places data into when receiving returned data
Receiving queue, when not receiving heartbeat packet more than 1.7s or receiving abnormal, mark receives abnormal mark amount；
(4) to Web server returned data,
Detect in receiving queue to extract when having data and head of the queue data and verify, judge it is errorless after return data to Web
Server；
(5) disconnection reconnecting,
When sending data exception amount and reception data exception amount is all labeled, disconnects and attempt the company of re-establishing
It connects.
The utility model has the advantages that
This system is designed and Implemented the electric automobile charging station based on Web and is supervised in real time using technologies such as Ajax, tcp, SVG
Control system, administrative staff can alleviate administrative staff's burden remotely to charging station real-time status monitoring after deployment.Utilize each item number
According to the communication technology, accelerate server to user's request answer speed, effectively promotion user experience.After tested, client can be stablized
It runs on a variety of major browsers, charging station Web monitoring system overall performance goes out good real-time, reliability, cross-platform
Property, browser compatibility and man-machine interaction, provide good solution for SCADA information sharing.
Detailed description of the invention
The present invention can be further illustrated by the nonlimiting examples that attached drawing provides；
Fig. 1 is system construction drawing of the invention；
Fig. 2 is system logic architecture figure of the invention；
The dial plate exemplary diagram that Fig. 3 Web browser is shown；
Fig. 4 real time data and historical data transmission performance test figure；
Specific embodiment
In order to make those skilled in the art that the present invention may be better understood, with reference to the accompanying drawings and examples to this hair
Bright technical solution further illustrates.
As shown in Figure 1, a kind of electric automobile charging station monitoring system based on Web includes interior net system and outer net subsystem
System, wherein interior net system includes SCADA server and SCADA data library, SCADA server stores data in SCADA number
According in library；Outer net system includes real-time database, Web database, Web server, client, and SCADA server is by real time data
Pass through positive isolating device with historical data and is transferred to real-time database and Web database respectively.Historical data by Web server from
It is read in Web database and returns to client, real time data is obtained and returned to real-time database by tcp long connection from Web server
Back to client.In the present embodiment, client is the Web browser in Fig. 1, and Web browser realizes figure circle using SVG
Data Local hydrodynamic unit is realized by Ajax in face.
As shown in Fig. 2, picture is shown and Refresh Data is realized in client, SVG is parsed, specified attribute is obtained and makees
Data are obtained from Web service for Ajax required parameter, are locally stored using client, will be not required to update but multiple number need to be used
According in local cache, returned data uses JSON format.Web service layer includes Web, DAO, service layers and udp local turn
Hair.Web layers are Web service and client communication interface, receive parsing client request, judge that request type passes through UDP and TCP
Long connection communication obtains real time data or obtains historical data by DAO layer data access interface, and result is finally returned to client
End.Real time data acquisition is responsible in TCP long connection.
SVG indicates saleable vector graphics, and advantage is embodied in: pantography does not influence that print quality, file be small, dynamic
Property, text and figure are independent, interactivity is strong and support completely mobile terminal with etc..If Fig. 3 is by taking charging voltage dial plate as an example,
Middle use<image>dial plate background is introduced,<polyline>describe pointer,<text>show voltage real value and dial scale text
This.
Ajax is the abbreviation of Asynchronous JavaScript and XML.Browser is sent to the back-end by Ajax
Asynchronous Request fetches data and carries out Local hydrodynamic unit to the page.
Data interaction is realized between client and Web service using Ajax, Web service end has for different requests not to exist together
Reason interface, client initiate request using specific URL to the back-end, the hair when including to need encrypted fields or larger data volume in request
Play POST request.GET request is initiated when request data quantity is smaller, request and returned data are JSON format.To guarantee browsing
Device compatibility realizes that code is unified using the Ajax of jQuery encapsulation.
Web service, which is interacted by tcp long connection with real-time database, returns to client guarantee real-time for real time data.Tcp is short
Connection is completed primary read-write and is automatically closed, and tcp long connection one is set up and will be always maintained at.It is long in the case of frequent refresh data
Connection is long-term to keep every time than short connection the consumption Connection Time more applicable.
In order to further illustrate, invention describes by tcp long connection from real-time database obtain real time data method,
It forms as follows:
(1) web forwarding request is received
The udp data request packet sent by service layers of web server is monitored in local port and is verified, after verifying
Request enters transmit queue.
(2) request of data is sent to real-time database
Heartbeat packet is sent to real-time database every 500ms, when there is request in transmit queue, head of the queue request Concurrency is taken out and send,
It sends and successfully removes head of the queue request.When throw exception, mark is sent into abnormal mark amount.
(3) real-time database returned data is received
Covering receives heart time point when receiving heartbeat packet, preliminary identification and places data into when receiving returned data
Receiving queue.When not receiving heartbeat packet more than 1.7s or receiving abnormal, mark receives abnormal mark amount.
(4) to Web server returned data
Detect in receiving queue to extract when having data and head of the queue data and verify, judge it is errorless after return data to web
Server.
(5) disconnection reconnecting
When sending data exception amount and reception data exception amount is all labeled, disconnects and attempt the company of re-establishing
It connects.
In order to further illustrate, the present invention obtains the advantage of the response time of data, make following test:
Data volume tests a request data transfer to the charging pile real-time monitoring page by testing tool and is at least 3MB.Number
The response time is tested by performance analysis tool according to performance, if Fig. 4 is charging pile real-time monitoring page request real time data and day
The response time of report page request historical data.
For user to the performance requirement response time within 1s, charging is significantly larger than performance with historical data response speed in real time
It is required that realizing that dynamic data refreshes in real time, each page picture normally also shows very high reliability.
Above to a kind of electric automobile charging station monitoring system and data capture method based on Web provided by the invention into
It has gone and has been discussed in detail.The explanation of specific embodiment is merely used to help understand method and its core concept of the invention.It should refer to
It out, for those skilled in the art, without departing from the principle of the present invention, can also be to the present invention
Some improvement and modification can also be carried out, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.
Claims (8)
1. a kind of electric automobile charging station monitoring system based on Web, it is characterised in that: described outer including net system outside Web
Net system includes real-time database, Web database, Web server, client, and historical data is by Web server from Web database
Middle reading returns to client, and real time data is obtained to real-time database by tcp long connection from Web server and returns to client
End.
2. a kind of electric automobile charging station monitoring system based on Web according to claim 1, it is characterised in that: described
Web server includes Web layers, service layers, udp locally forward, the Web layer communication interface for Web server and client,
Parsing client request is received, judges request type, if request real time data, passes through udp locally forwarding and tcp long connection
Communication obtains real time data from real-time database, and returns result to client.
3. a kind of electric automobile charging station monitoring system based on Web according to claim 2, it is characterised in that: described
Web server further includes DAO layers, if service layers judge request type to read historical data, the access of DAO layer data
Interface sees acquisition historical data to web data, and returns result to client.
4. a kind of electric automobile charging station monitoring system based on Web according to claim 1, it is characterised in that: described
Client realizes graphical interfaces using SVG, realizes data Local hydrodynamic unit, benefit by sending Ajax request of data to Web server
It is locally stored with client, will not need to update but multiple data need to be used in local cache, the data of return use JSON
Format.
5. a kind of electric automobile charging station monitoring system based on Web according to claim 4, it is characterised in that: described
Client is initiated to request using specific URL to Web server, the initiation when including to need encrypted fields or larger data volume in request
POST request；GET request is initiated when request data quantity is smaller.
6. a kind of electric automobile charging station monitoring system based on Web according to claim 4, it is characterised in that: client
Realize that code is unified using the Ajax of jQuery encapsulation in end.
7. a kind of electric automobile charging station monitoring system based on Web according to claim 1-6, feature exist
In: further include interior net system, the interior net system includes SCADA server, the SCADA server by real time data with
Historical data passes through positive isolating device and is transferred to real-time database and Web database respectively.
8. a kind of electric automobile charging station monitoring system data acquisition based on Web according to claim 1-7
Method, characterized by the following steps:
(1) Web forwarding request is received,
The udp data request packet sent by service layers of Web server is monitored in local port and is verified, the request after verifying
Into transmit queue；
(2) request of data is sent to real-time database,
Heartbeat packet is sent to real-time database every 500ms, when there is request in transmit queue, head of the queue request Concurrency is taken out and send, send
Success removes head of the queue request, and when throw exception, mark is sent abnormal mark amount；
(3) real-time database returned data is received,
Covering receives heart time point when receiving heartbeat packet, preliminary identification and places data into reception when receiving returned data
Queue, when not receiving heartbeat packet more than 1.7s or receiving abnormal, mark receives abnormal mark amount；
(4) to Web server returned data,
Detect in receiving queue to extract when having data and head of the queue data and verify, judge it is errorless after return data to Web service
Device；
(5) disconnection reconnecting,
When sending data exception amount and reception data exception amount is all labeled, disconnects and attempt to re-establish connection.
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