CN203149800U - Wireless-public-network-based real-time point-to-point centralized meter reading system of electric energy meters - Google Patents

Wireless-public-network-based real-time point-to-point centralized meter reading system of electric energy meters Download PDF

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Publication number
CN203149800U
CN203149800U CN2013201158193U CN201320115819U CN203149800U CN 203149800 U CN203149800 U CN 203149800U CN 2013201158193 U CN2013201158193 U CN 2013201158193U CN 201320115819 U CN201320115819 U CN 201320115819U CN 203149800 U CN203149800 U CN 203149800U
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China
Prior art keywords
electric energy
meter
data transmission
wireless
transmission terminal
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Expired - Lifetime
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CN2013201158193U
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代盛国
郑顺波
严巨刚
杨波
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Xishuangbanna Power Supply Bureau Yunnan Power Grid Corp
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Xishuangbanna Power Supply Bureau Yunnan Power Grid Corp
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Abstract

The utility model discloses a wireless-public-network-based real-time point-to-point centralized meter reading system of an electric energy meter. The real-time point-to-point centralized meter reading system disclosed by the utility model comprises a meter reading master station, a wireless public network, wireless data transmission terminals and the electric energy meters, wherein the meter reading master station is connected to at least one wireless data transmission terminal through the wireless public network, and each wireless data transmission terminal is connected with at least one RS485 electric energy meter by one RS485 interface. The meter reading system disclosed by the utility model is tidy in equipment, simple to construct, small in maintenance quantity, timely to response, high in reliability and capable of saving the investment, greatly saving manpower and material resources of power supply enterprises and improving the working quality and efficiency.

Description

A kind of based on the real-time point-to-point electric energy meter automatic meter reading system of wireless public network
Technical field
The utility model relates to based on the point-to-point electric energy meter automatic meter reading system of wireless public network, 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 is used with, adopt the RS485 interface to connect as collector and electric energy meter, collector adopts carrier system between the concentrator, is contacted with the main website that checks meter by the GPRS mode by concentrator and realizes communicating by letter.This reading technique node is many, data are by the plurality of devices treatment conversion, equipment operation maintenance complexity and workload are big, owing to be subjected to the restriction of the communication technology, particularly carrier system is subjected to 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.Be the lifting 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, is restricting enterprise and is copying further deeply using on the basis at collection.
The utility model content
Be to solve that traditional centralized automatic meter-reading success ratio is not high, reliable not high, the problem of real-time responsiveness difference based on the point-to-point electric energy meter automatic meter reading system of wireless public network fundamental purpose.At present, the wireless public network network coverage is wider, and now uses electric energy meter to be generally electronic watch, and the RS485 interface is the electric energy meter basic configuration.Simultaneously, wireless data transmission terminal provides possibility for electric energy meter inserts wireless public network.Directly connect with electric energy meter by the wireless data transmission terminal main website that will check meter, set up communication, realize checking meter, simplify the centralized automatic meter-reading mode, reduced investment outlay, alleviated maintenance, system's real-time response is fast, the lifting of realize checking meter work quality and efficient, reliability height.
The technical solution of the utility model is achieved as follows:
A kind of based on the real-time point-to-point electric energy meter automatic meter reading system of wireless public network, the utility model is characterised in that, mainly comprises the main website that checks meter, wireless public network, wireless data transmission terminal and electric energy meter; Wherein check meter main website by wireless public network and be attached to the wireless data transmission terminal of few one RS485, wireless data transmission terminal connects with the electric energy meter interface of at least one RS485.
The utility model adopts between wireless data transmission terminal realization system and connects, electric energy meter connects with wireless data transmission terminal by the RS485 interface, wireless data transmission terminal links with the main website that checks meter by wireless public network, and realizes the direct communication of main website and electric energy meter by the main website order.
The utility model is based on wireless public network network IP technology, the total digitalization of data acquisition transmission course.
Wireless public network of the present utility model refers to GPRS or CDMA or EDGE or TD-SCDMA; Wireless data transmission terminal refers to use the DTU wireless data transmission terminal of GPRS or CDMA/EDGE or TD-SCDMA.
What check meter the realization of main website and electric energy meter is real-time point-to-point digital communication, and wireless data transmission terminal 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 reception data to a plurality of wireless data transmission terminals simultaneously, guarantees meter reading efficiency.Main website can guarantee that same wireless data transmission terminal connects the uniqueness that different electric energy meters receive order and transmission data, guarantees success ratio by the time-delay of the different electric energy meters of same wireless data transmission terminal being checked meter between order.
There is fixed ip address in this novel system main website that checks meter as server end, and wireless data transmission terminal has unique ip address as client.Check meter behind main website and the wireless data transmission terminal network construction, wireless data transmission terminal 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 wireless data transmission terminal of corresponding IP address earlier, wireless data transmission terminal 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 electronic electric energy meter, and by national industry regulation code requirement communication protocol, should dispose the RS485 communication interface;
2, electric energy meter connects with wireless data transmission terminal by the RS485 interface, and wireless data transmission terminal links with the main website that checks meter by wireless public network, can communicate by letter with electric energy meter by main website order realization is point-to-point as required, realizes checking meter and controlling function;
What 3, check meter that main website and electric energy meter realize is real-time point-to-point communication, wireless data transmission terminal is the critical component of realizing the native system function, it has inserted wireless public network with electric energy meter and has realized connecting with main website, being responsible for main website issued an order is converted to the RS485 signal by wireless public network and is transferred to electric energy meter, and the information that electric energy meter is replied reports main website by RS485 signal format conversion wireless public network form.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 wireless data transmission terminals simultaneously, the assurance meter reading efficiency.
5, main website can guarantee that same wireless data transmission terminal connects the uniqueness that different electric energy meters receive order and transmission data, guarantees success ratio by the time-delay of the different electric energy meters of same wireless data transmission terminal being checked meter between order.
The beneficial effects of the utility model are, the utlity model has that efficient, high-quality, reduced investment, maintenance are economized, reliable, characteristics that real-time is good.1, supports as communication by wireless public network, guaranteed network reliability; 2, guaranteed to copy the real-time of fetching data by point-to-point network service; 3, send the efficient that the concurrent mode of order has guaranteed meter reading data by main station system; 4, replace collector and concentrator to save investment by wireless data transmission terminal, reduced wired mode track investment simultaneously; 5, by 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 the utility model draw bail synoptic diagram.
Embodiment
A kind of based on the real-time point-to-point electric energy meter automatic meter reading system of wireless public network, the utility model is characterised in that, mainly comprises the main website that checks meter, wireless public network, wireless data transmission terminal and electric energy meter; Wherein check meter main website by wireless public network and be attached to the wireless data transmission terminal of few one RS485, wireless data transmission terminal connects with the electric energy meter interface of at least one RS485.
The utility model adopts between wireless data transmission terminal realization system and connects, electric energy meter connects with wireless data transmission terminal by the RS485 interface, wireless data transmission terminal links with the main website that checks meter by wireless public network, and realizes the direct communication of main website and electric energy meter by the main website order.The total digitalization of data acquisition transmission course, wireless data transmission terminal are only carried out real-time original text conversion to the data form as the data transparency transmitting device, data are not processed.
The utility model is based on wireless public network network IP technology, the total digitalization of data acquisition transmission course.
Wireless public network of the present utility model refers to GPRS or CDMA or EDGE or TD-SCDMA; Wireless data transmission terminal refers to use the DTU wireless data transmission terminal of GPRS or CDMA/EDGE or TD-SCDMA.
The main website transmission order of checking meter has concurrent function, and main website can send order and reception data to a plurality of wireless data transmission terminals simultaneously, guarantees meter reading efficiency.Main website can guarantee that same wireless data transmission terminal connects the uniqueness that different electric energy meters receive order and transmission data, guarantees success ratio by the time-delay of the different electric energy meters of same wireless data transmission terminal being checked meter between order.
Native system main station system and wireless data transmission terminal are the connecting modes of one-to-many, wireless data transmission terminal and electric energy meter are to realize by 485 interface one-to-many connecting modes, there is fixed ip address in the main website that checks meter as server end, wireless data transmission terminal has unique ip address as client, check meter behind main website and the wireless data transmission terminal network construction, wireless data transmission terminal can initiatively be set up with the main website that checks meter and connect, when main website initiates to check meter order, find the wireless data transmission terminal of appropriate address earlier, wireless data transmission terminal 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, realizes that the once communication of system is checked meter.
Its key is:
1, electric energy meter is electronic electric energy meter, and by national industry regulation code requirement communication protocol, should dispose the RS485 communication interface;
2, electric energy meter connects with wireless data transmission terminal by the RS485 interface, and wireless data transmission terminal links with the main website that checks meter by wireless public network, can be as required realizes point-to-pointly communicating by letter with electric energy meter realization timing or check meter in real time by the main website order;
What 3, check meter that main website and electric energy meter realize is real-time point-to-point communication, wireless data transmission terminal is the critical component of realizing the native system function, it has inserted wireless public network with electric energy meter and has realized connecting with main website, being responsible for main website issued an order is converted to the RS485 signal by wireless public network and is transferred to electric energy meter, and the information that electric energy meter is replied reports main website by RS485 signal format conversion wireless public network form.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 wireless data transmission terminals simultaneously, the assurance meter reading efficiency.
5, main website can guarantee that same wireless data transmission terminal connects the uniqueness that different electric energy meters receive order and transmission data, guarantees success ratio by the time-delay of the different electric energy meters of same wireless data transmission terminal being checked meter between order.
To closing Fig. 1 function of the present utility model is realized being described further below:
The main website part: main website partly is system data storage center and the order issue center of checking meter, owing to be to adopt the wireless public network point-to-point communication, the main website port must have fixed IP addresses, each wireless data transmission terminal has unique ip address in the net, and every electric energy meter has the only table address in the wireless data transmission terminal.For guaranteeing effective foundation of communication, must in the main website database, set up the corresponding wireless data transmission terminal 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 wireless data transmission terminal of appropriate address earlier, after the wireless data transmission terminal response the corresponding command is transmitted electric energy meter, the electric energy meter response command that the address conforms to 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.
Wireless data transmission terminal: wireless data transmission terminal is to realize setting up the key of communicate by letter with data transmission between main website and the electric energy meter; the one end is to connect wireless public network; the other end connects the RS485 electric energy meter; it is order and data transparency transmission part; each wireless data transmission terminal 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 monitoring of its operation conditions.A RS485 interface can connect the electric energy meter of varying number according to its technical feature.When wireless data transmission terminal is received the main website order, digital signal is converted to the RS485 signal, be transferred to electric energy meter, electric energy meter is replied corresponding data or is carried out action according to command context, reply data and by wireless data transmission terminal signal is sent to main website, realize meter-reading function or control function.
The electric energy meter part: electric energy meter must have the RS485 interface.Electric energy meter links by RS485 interface and wireless data transmission terminal.Electric energy meter under wireless data transmission terminal has 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.

Claims (1)

1. one kind based on the real-time point-to-point electric energy meter automatic meter reading system of wireless public network, it is characterized in that, comprises the main website that checks meter, wireless public network, wireless data transmission terminal and electric energy meter; The main website that wherein checks meter connects at least one wireless data transmission terminal by wireless public network, and wireless data transmission terminal connects by the RS485 electric energy meter of RS485 interface with at least one.
CN2013201158193U 2013-03-14 2013-03-14 Wireless-public-network-based real-time point-to-point centralized meter reading system of electric energy meters Expired - Lifetime CN203149800U (en)

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CN2013201158193U CN203149800U (en) 2013-03-14 2013-03-14 Wireless-public-network-based real-time point-to-point centralized meter reading system of electric energy meters

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Application Number Priority Date Filing Date Title
CN2013201158193U CN203149800U (en) 2013-03-14 2013-03-14 Wireless-public-network-based real-time point-to-point centralized meter reading system of electric energy meters

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103559784A (en) * 2013-11-07 2014-02-05 国家电网公司 Electric quantity data transmission system and method based on Beidou satellite communication

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103559784A (en) * 2013-11-07 2014-02-05 国家电网公司 Electric quantity data transmission system and method based on Beidou satellite communication

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Granted publication date: 20130821