CN102682588A - Ethernet-based real-time point-to-point centralized meter-reading system for electric energy meter - Google Patents
Ethernet-based real-time point-to-point centralized meter-reading system for electric energy meter Download PDFInfo
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- CN102682588A CN102682588A CN2012101497525A CN201210149752A CN102682588A CN 102682588 A CN102682588 A CN 102682588A CN 2012101497525 A CN2012101497525 A CN 2012101497525A CN 201210149752 A CN201210149752 A CN 201210149752A CN 102682588 A CN102682588 A CN 102682588A
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Abstract
The invention relates to an Ethernet-based real-time point-to-point centralized meter-reading system for an electric energy meter, which comprises a meter-reading master station, an Ethernet, a serial port server and an electric energy meter, wherein the meter-reading master station is connected with at least one RS485 serial port server through the Ethernet, and the RS485 serial port server is connected with at least one RS485 electric energy meter through an RS485 interface. The Ethernet-based real-time point-to-point centralized meter-reading system for the electric energy meter has the advantages of saved investment, simple equipment, simplicity in construction, small maintenance load, timely response, high reliability, 100% success rate of daily meter-reading, capability of greatly saving manpower and material resources of a power supply enterprise and capability of increasing the working quality and efficiency.
Description
Technical field
The present invention relates to based on the real-time point-to-point electric energy meter automatic meter reading system of Ethernet, is power supply enterprise's reading technique device new construction technical field.
Background technology
At present; Traditional electric energy meter collection technology of copying mainly is made up of the main website that checks meter, collector, concentrator, electric energy meter; Adopt carrier wave, wireless or wired mode to communicate by letter, or multiple mode uses with, adopt the connection of 485 interfaces like collector and electric energy meter; Adopt carrier system between collector to the concentrator, get in touch with the main website that checks meter through the GPRS mode by concentrator again and realize communicating by letter.This reading technique node is many; Data are through the plurality of devices treatment conversion, and equipment operation maintenance complicacy and workload are big, owing to receive the restriction of the communication technology; Particularly carrier system receives environment and circuit operating condition to influence bigger; System is unreliable, and the success ratio of once checking meter is not high, the difference in response of checking meter in real time.Power comprehensively check meter every day about 90%, can not realize 100% success ratio of checking meter.In addition for promoting the success ratio of checking meter, traditional centralized meter-reading system adopts constantly to patrol to survey to mend and copies mode unsuccessful electric energy meter, and running efficiency of system is low, still can not effectively be promoted through the long period, is restricting the further degree of depth that enterprise copies on the basis at collection and is using.
Summary of the invention
Based on the real-time point-to-point electric energy meter automatic meter reading system fundamental purpose of Ethernet is that the traditional centralized automatic meter-reading success ratio of solution is not high, reliable not high, the problem of real-time responsiveness difference.At present, interconnected broadband network covers wider, and uses electric energy meter to be generally electronic watch at present, and the RS485 interface is the electric energy meter basic configuration.Simultaneously, the RS485 serial server provides possibility for the electric energy meter access network based on ethernet.Directly connect with electric energy meter through the serial server main website that will check meter; Set up communication; Realization is checked meter, and has simplified the centralized automatic meter-reading mode, has reduced investment outlay, alleviates maintenance, and system's real-time response is fast; The check meter lifting of work quality and efficient of realization, native system can reach the success ratio 100% of checking meter, single table real-time responsiveness, and < 1 second, reliability is high, 100% success ratio time of checking meter of checking meter foreshortened in several minutes.
Technical scheme of the present invention realizes as follows:
A kind of based on the real-time point-to-point electric energy meter automatic meter reading system of Ethernet, the present invention is characterised in that, mainly comprises the main website that checks meter, Ethernet, serial server and electric energy meter; Wherein check meter main website through Ethernet and be attached to the serial server of few one RS485, and the RS485 serial server connects with the electric energy meter interface of at least one RS485.
The present invention adopts between serial server realization system and connects, and electric energy meter connects with serial server through the RS485 interface, and serial server links with the main website that checks meter through Ethernet, and realizes the direct communication of main website and electric energy meter through the main website order.
The present invention is based on Ethernet IP technology, the total digitalization of data acquisition transmission course.
What check meter the realization of main website and electric energy meter is real-time point-to-point digital communication, and serial server only carries out real-time original text conversion to the data form as the data transparency transmitting device, data is not processed.
The main website transmission order of checking meter has concurrent function, and main website can send order and receive data to a plurality of serial servers simultaneously, the assurance meter reading efficiency.Main website can guarantee that same serial server connects the uniqueness that different electric energy meters receive order and transmission data, guarantees success ratio through the time-delay between order that the different electric energy meters of same serial server are checked meter.
There is fixed ip address in the main website that checks meter of this novel system system as server end, and serial server has unique ip address as client.Check meter behind main website and the serial server network construction; Serial server initiatively connects with the main website foundation of checking meter by the back is set; When main website initiates to check meter order; Find the serial server of corresponding IP address earlier; Serial server response back conversion the corresponding command is to electric energy meter; The electric energy meter response command that the address conforms to is replied data or is carried out action, and the once communication of realization system is checked meter or controlled.
Its key is:
1, electric energy meter is an electronic electric energy meter, and by national industry regulation code requirement communication protocol, should dispose the RS485 communication interface;
2, electric energy meter electric energy table connects with serial server through the RS485 interface, and serial server links with the main website that checks meter through Ethernet, can be as required realizes point-to-pointly communicating by letter with electric energy meter realization timing or check meter in real time through the main website order;
What 3, check meter that main website and electric energy meter realize is real-time point-to-point communication; Serial server is a critical component of realizing the native system function; It has inserted Ethernet with electric energy meter and has realized connecting with main website; Being responsible for main website issued an order converts the RS485 signal into through Ethernet and is transferred to electric energy meter, and the information that electric energy meter is replied reports main website by RS485 signal format conversion ethernet format.It carries out the original text conversion to the data form, data is not processed.
4, main station system for reading meter sends to order and has concurrent function, and main website can send order and receive data to a plurality of serial servers simultaneously, guarantees meter reading efficiency.
5, main website can guarantee that same serial server connects the uniqueness that different electric energy meters receive order and transmission data, guarantees success ratio through the time-delay between order that the different electric energy meters of same serial server are checked meter.
The invention has the beneficial effects as follows that the present invention has is efficient, high-quality, reduced investment, maintenance are economized, reliable, characteristics that real-time is good.1, supports as communication through Ethernet, guaranteed network reliability; 2, guaranteed to copy the real-time of fetching data through point-to-point network service; 3, send the efficient that the concurrent mode of order has guaranteed meter reading data through main station system; 4, replaced collector and concentrator to save investment through serial server; 5, through novel networking meter reading method and point-to-point direct communication mode, equipment and corresponding maintenance workload have been reduced.
Description of drawings
Fig. 1 is a draw bail synoptic diagram of the present invention;
Fig. 2 joins the data transmission synoptic diagram for the present invention.
Embodiment
A kind of based on the real-time point-to-point electric energy meter automatic meter reading system of Ethernet, comprise the main website that checks meter, Ethernet, serial server and electric energy meter; The present invention is characterised in that, through Ethernet and be attached to few one RS485 serial server, the RS485 serial server connects with at least one RS485 electric energy meter interface by the main website that checks meter.
The present invention adopts between serial server realization system and connects, and electric energy meter connects with serial server through the RS485 interface, and serial server links with the main website that checks meter through Ethernet, and realizes the direct point-to-point communication of main website and electric energy meter through the main website order.The total digitalization of data acquisition transmission course, serial server are only carried out real-time original text conversion to the data form as the data transparency transmitting device, data are not processed.
The main website transmission order of checking meter has concurrent function, and main website can send order and receive data to a plurality of serial servers simultaneously, the assurance meter reading efficiency.Main website can guarantee that same serial server connects the uniqueness that different electric energy meters receive order and transmission data, guarantees success ratio through the time-delay between order that the different electric energy meters of same serial server are checked meter.
Native system main station system and serial server are the connecting modes of one-to-many, and serial server and electric energy meter are to realize that through 485 interface one-to-many connecting modes there is fixed ip address in the main website that checks meter as server end; Serial server has unique ip address as client; Check meter behind main website and the serial server network construction, serial server can initiatively be set up with the main website that checks meter and connect, when main website initiates to check meter order; Find the serial server of appropriate address earlier; Serial server response back conversion the corresponding command is to electric energy meter, and the electric energy meter response command of address matches is replied data, realizes that the once communication of system is checked meter.
Its key is:
1, electric energy meter is an electronic electric energy meter, and by national industry regulation code requirement communication protocol, should dispose the RS485 communication interface;
2, electric energy meter electric energy table connects with serial server through the RS485 interface, and serial server links with the main website that checks meter through Ethernet, can be as required realizes point-to-pointly communicating by letter with electric energy meter realization timing or check meter in real time through the main website order;
What 3, check meter that main website and electric energy meter realize is real-time point-to-point communication; Serial server is a critical component of realizing the native system function; It has inserted Ethernet with electric energy meter and has realized connecting with main website; Being responsible for main website issued an order converts the RS485 signal into through Ethernet and is transferred to electric energy meter, and the information that electric energy meter is replied reports main website by RS485 signal format conversion ethernet format.It carries out the original text conversion to the data form, data is not processed.
4, main station system for reading meter sends to order and has concurrent function, and main website can send order and receive data to a plurality of serial servers simultaneously, guarantees meter reading efficiency.
5, main website can guarantee that same serial server connects the uniqueness that different electric energy meters receive order and transmission data, guarantees success ratio through the time-delay between order that the different electric energy meters of same serial server are checked meter.
Give below and closed Fig. 1, Fig. 2 is described further functions implementing the present invention:
The main website part: main website partly is the system data storage center and the order issue center of checking meter; Owing to be to adopt the Ethernet point-to-point communication; The main website port must have fixed IP addresses, and each serial server has unique ip address in the net, and every electric energy meter has the only table address in the serial server.For guaranteeing effective foundation of communication, must in the main website database, set up corresponding serial server IP address of electric energy meter and electric energy meter address.When main website initiates to check meter order (order must meet the communication protocol of electric energy meter); Find the serial server of appropriate address earlier; After the serial server response the corresponding command is transmitted electric energy meter; The electric energy meter response command of address matches is replied corresponding data or is carried out action, and the once communication of realization kilowatt meter reading-out system is checked meter or controlled.
Serial server: serial server is to realize setting up the key of communicate by letter with data transmission between main website and the electric energy meter, and the one of which end is to connect Ethernet, other end connection RS485 electric energy meter; It is order and data transparency transmission part; Each serial server has unique IP address, and it adopts the client mode to move, and keepalive mechanism is arranged; Guarantee to connect with main website at any time, so that main website is to the supervision of its operation conditions.The RS485 interface of standard configuration, an interface can connect 32 electric energy meters at most.When serial server is received the main website order; Is the RS485 signal according to the baud rate that is provided with Ethernet RJ45 interface numeral conversion of signals; Be transferred to electric energy meter; Electric energy meter is replied corresponding data or is carried out action according to command context, replys data and through serial server the RS485 conversion of signals is sent out to main website for the Ethernet interface data-signal, realizes meter-reading function or control.
The electric energy meter part: electric energy meter must have the RS485 interface.Electric energy meter links through RS485 interface and serial server, and the RS485 serial server interface of a standard configuration can connect 32 electric energy meters at most.Electric energy meter under serial server can only have a unique table address, and according to electric energy meter communication protocol and technical manual, electric energy meter is according to the order passback data that receive or carry out corresponding actions.
Security of system: for guaranteeing electric energy meter telecommunication safety, must set up fire wall when the main website that checks meter connects with Virtual network operator, Virtual network operator must provide VPN optical fiber tunnel, prevents that the equipment beyond the main website from initiating to check meter or control command.
Claims (3)
1. one kind based on the real-time point-to-point electric energy meter automatic meter reading system of Ethernet, it is characterized in that, comprises the main website that checks meter, Ethernet, serial server and electric energy meter; The main website that wherein checks meter connects at least one RS485 serial server through Ethernet, and the RS485 serial server connects through the RS485 electric energy meter of RS485 interface with at least one.
2. as claimed in claim 1 based on the real-time point-to-point electric energy meter automatic meter reading system of Ethernet; It is characterized in that; Adopt between serial server realization system to connect, electric energy meter connects with serial server through the RS485 interface, and serial server links with the main website that checks meter through Ethernet; And, realize checking meter and control function through the direct communication that main website orders realization main website and electric energy meter.
3. as claimed in claim 1ly it is characterized in that kilowatt meter reading-out system is based on the ethernet ip technology, the total digitalization of data acquisition transmission course based on the real-time point-to-point electric energy meter automatic meter reading system of Ethernet.
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| CN2012101497525A CN102682588A (en) | 2012-05-15 | 2012-05-15 | Ethernet-based real-time point-to-point centralized meter-reading system for electric energy meter |
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| CN103000019A (en) * | 2012-12-21 | 2013-03-27 | 青岛乾程电子科技有限公司 | Collecting method of meter reading terminal for automatically uploading meter address |
| CN103036878A (en) * | 2012-12-07 | 2013-04-10 | 广东电网公司佛山供电局 | Device and method for networking protocol conversion |
| CN103391282A (en) * | 2013-06-25 | 2013-11-13 | 深圳市国电科技通信有限公司 | Method for achieving data transmission of power consumption information collecting system in data link layer |
| CN105185088A (en) * | 2015-10-13 | 2015-12-23 | 威胜集团有限公司 | Wireless rapid meter-reading method for metering instrument |
| CN105959288A (en) * | 2016-05-27 | 2016-09-21 | 姹や寒 | Network protocol conversion method for power grid system and intercommunication method of power grid system |
| CN108684003A (en) * | 2018-03-20 | 2018-10-19 | 宁波三星医疗电气股份有限公司 | Turn the ammeter group-net communication method of RS485 based on GPRS |
| CN109684261A (en) * | 2018-12-28 | 2019-04-26 | 西南铝业（集团）有限责任公司 | A kind of data transmission system |
| CN110112832A (en) * | 2019-06-05 | 2019-08-09 | 国网江苏省电力有限公司检修分公司 | A kind of state acquisition system and method for all-fiber current transformator |
| CN111131931A (en) * | 2019-12-04 | 2020-05-08 | 南京邮电大学 | Parallel architecture optical fiber management system and method |
| CN112769637A (en) * | 2020-12-15 | 2021-05-07 | 科陆国际技术有限公司 | Ammeter data forwarding method, device and system, electronic equipment and storage medium |
| CN113347280A (en) * | 2021-08-09 | 2021-09-03 | 武汉迈威通信股份有限公司 | Multi-serial-port server system with redundant main and standby and load balancing functions |
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Cited By (13)
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| CN103036878A (en) * | 2012-12-07 | 2013-04-10 | 广东电网公司佛山供电局 | Device and method for networking protocol conversion |
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| CN110112832A (en) * | 2019-06-05 | 2019-08-09 | 国网江苏省电力有限公司检修分公司 | A kind of state acquisition system and method for all-fiber current transformator |
| CN111131931A (en) * | 2019-12-04 | 2020-05-08 | 南京邮电大学 | Parallel architecture optical fiber management system and method |
| CN111131931B (en) * | 2019-12-04 | 2021-09-28 | 南京邮电大学 | Parallel architecture optical fiber management system and method |
| CN112769637A (en) * | 2020-12-15 | 2021-05-07 | 科陆国际技术有限公司 | Ammeter data forwarding method, device and system, electronic equipment and storage medium |
| CN113347280A (en) * | 2021-08-09 | 2021-09-03 | 武汉迈威通信股份有限公司 | Multi-serial-port server system with redundant main and standby and load balancing functions |
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Application publication date: 20120919 |