CN107248271B - Multi-master station acquisition system integrating multiple meters - Google Patents

Abstract

The invention discloses a multi-meter-in-one multi-master station acquisition system, comprising an electric energy information acquisition system and a water-gas heat meter acquisition system, the electric energy information acquisition system comprising a first main station layer, a first remote communication layer, multi-meter-in-one concentrator and electricity meter, the water-gas heat meter acquisition system includes a second main station layer, a second remote communication layer, a water-gas heat meter concentrator and a first interface converter connected in sequence. The first interface converter is respectively connected with the water meter, the gas meter and the heat meter, and the water-gas heat meter concentrator is connected in communication with the multi-meter in one concentrator through the second interface converter. The multi-meter-in-one multi-master acquisition system of the present invention has the advantages of simple structure and high reliability.

Description

Multi-meter in one multi-master acquisition system

technical field

The invention mainly relates to the technical field of measurement, and particularly relates to a multi-meter-in-one multi-master acquisition system.

Background technique

In 2015, the National Development and Reform Commission and the National Energy Administration jointly issued the "Guiding Opinions on Promoting the Development of Smart Grids" (ie: Development and Reform Operation [2015] No. 1518), which mentioned that the development of smart grids is conducive to further improving grid acceptance. It is conducive to promoting the scientific utilization of clean energy and distributed energy, so as to comprehensively build a safe, efficient and clean modern energy security system, which is conducive to supporting new industrialization. It is conducive to promoting the transformation and upgrading of upstream and downstream industries, and realizing the comprehensive improvement of my country's energy technology and equipment level. , gas and electricity collection and copying, build a cross-industry energy operation dynamic data integration platform, and encourage the sharing and reuse of energy and information infrastructure.

At present, the multi-meter-in-one collection application work of the State Grid is based on the electricity consumption information collection system, which has basically covered 310 million power users within the scope of the State Grid. After years of construction, the system is relatively mature, and its main architecture is shown in Figure 1. The multi-meter-in-one acquisition system refers to relying on the existing power consumption information acquisition system of the power supply enterprise, making full use of the communication standards, technologies, channels and equipment and other resources that have been established in the system, and integrating the metering data of electricity meters, water meters, gas meters, and heat meters. , real-time collection and upload to the system master station to achieve cross-industry energy information resource sharing. Reduce repeated investment and repeated construction, make full use of social public resources, and improve the service level of social public utilities. And in this process, various social benefits, economic benefits and management benefits have been obtained through the successful experience of transplanting the electricity consumption information collection system.

At present, most of the solutions used are multiplexing the electricity meter module scheme, in which the multiplexing electricity meter module refers to the reuse of the "micro-power wireless" electricity meter module, or the reuse of the micro-power wireless part in the "dual-mode" electricity meter module, so that it can be used for uplink. It communicates with the concentrator, and it can also communicate with the wireless water, gas and heat meter downlink. However, this scheme has the following problems and can only be used as an alternative under special conditions.

(1) Communication distance problem: Most of the electricity meters are installed centrally, while most of the water and gas heat meters are installed in a decentralized manner. This leads to a certain distance between the electric meter and the water-gas heat meter, and there are many walls in the middle, which leads to poor wireless communication stability. After adding a wireless repeater, the construction and cost cannot be estimated.

(2) Meter interface problem: The multiplexed meter module solution can only be used for "micro-power wireless" or "dual-mode" meter modules, and can only collect wireless water, gas and heat meters. However, at present, the power line carrier occupies more than 90% of the electricity meter module, and the water and gas heat meter has a variety of communication interfaces. For example, most of the water meters use the M-BUS interface instead of the wireless interface.

(3) Wireless parameter problem: The precondition that the wireless module or dual-mode module of the electric meter can be reused is that the frequency of the wireless part inside the wireless water and gas heat meter is similar and the modulation method is the same.

(4) Multiplexing impact problem: When multiplexing the electricity meter module, the module must constantly switch the upstream and downstream working modes, and cannot work in the upstream or downstream at the same time, which will inevitably affect the stability of the original electricity collection.

In addition, the functions of the current master station system for multi-meter integration are not perfect, and there are many other energy supply units with changing needs. It is difficult to use a large and comprehensive single master station to fully meet the refined needs of these units, such as real-time Meter reading, pipe loss statistics, real-time valve control, design operation and maintenance, etc. Moreover, power companies and other energy supply units may use their own intranets for the construction of the main station, making it difficult to share data from the main station level.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is as follows: in view of the technical problems existing in the prior art, the present invention provides a reliable and stable multi-meter integrated multi-master station acquisition system.

In order to solve the above-mentioned technical problems, the technical scheme proposed by the present invention is:

A multi-meter-in-one multi-master station acquisition system, including an electric energy information acquisition system and a water-gas heat meter acquisition system, the electric energy information acquisition system including a first main station layer, a first remote communication layer, a multi-meter connected in sequence A concentrator and an electric meter are integrated into one, and the water-gas heat meter collection system includes a second main station layer, a second remote communication layer, a water-gas heat meter concentrator and a first interface converter that are connected in sequence, and the first interface converts The water-gas-heat-meter concentrator is connected to the multi-meter-in-one concentrator through a second interface converter for communication.

As a further improvement of the above technical solution:

The second interface converter is connected with the water-gas heat meter concentrator through RS485 communication, and the second interface converter communicates with the multi-meter-in-one concentrator through power carrier or micro-power wireless or dual-mode communication. .

The first interface converter is connected with the water meter, gas meter and heat meter through M-BUS bus.

The first interface converter is connected with the water meter, gas meter and heat meter in a micro-power wireless manner.

The first interface converter and the water-gas heat meter concentrator are connected in a micro-power wireless manner.

The multi-meter-in-one concentrator and the electric meter are connected by one or more ways of power carrier, micro-power wireless, and dual-mode communication.

The first telecommunication layer and the second telecommunication layer are GPRS network or CDMA network or Ethernet.

Compared with the prior art, the advantages of the present invention are:

In the multi-meter-in-one multi-master acquisition system of the present invention, the second interface converter is used to bridge multiple independent acquisition systems; The meter concentrator collects the real-time data and frozen data of the water, gas and heat meters, realizes the remote control of the meters and achieves the purpose of data sharing. Connected to the concentrator, it can convert the water, gas and heat meter data of different communication interfaces and communication protocols into standard signals for unified processing, and correspondingly solve the following problems: 1) Communication distance problem: The interface converter, as an independent acquisition device, can be If necessary, choose the installation location flexibly: such as: meter box, distribution box, water meter well or independent box. So as to solve the problem of communication distance with the water and gas heat meter; 2) The problem of meter interface: The interface converter has a lot of meter interfaces, generally M-BUS, RS485 and micro-power wireless, etc., which can be adapted to connect various 3) Wireless parameter problem: the wireless parameters of the micro-power wireless module of the interface converter can be customized according to the meter; 4) The problem of multiplexing influence: relative to the multiplexing meter module scheme, the interface converter is hardware independent from In addition to the original electricity collection system, the impact on the original system is small.

Description of drawings

FIG. 1 is a schematic structural diagram of the present invention.

The symbols in the figure indicate: 1. Electric energy information collection system; 11. The first main station layer; 12. The first remote communication layer; 13. Multi-meter in one concentrator; 14. Electricity meter; 21. The second main station layer; 22. The second remote communication layer; 23. The water-gas heat meter concentrator; 24. The first interface converter; 25. The water meter; 26. The gas meter; 27. The heat meter; Two interface converters.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

As shown in FIG. 1 , the multi-meter-in-one multi-master collection system of this embodiment includes an electric energy information collection system 1 and a water-gas heat meter collection system 2, and the electric energy information collection system 1 includes a first main station layer connected in sequence 11. The first telecommunication layer 12, the multi-meter concentrator 13 and the electricity meter 14, the water-gas heat meter acquisition system 2 includes the second main station layer 21, the second telecommunication layer 22, the water-gas heat meter centralized The first interface converter 24 is connected with the water meter 25, the gas meter 26 and the heat meter 27 respectively, and the water-gas heat meter concentrator 23 is integrated with the multi-meter through the second interface converter 3. The device 13 is connected for communication. In the multi-meter-in-one multi-master acquisition system of the present invention, each independent acquisition system can operate independently, and the second interface converter 3 is used to bridge the multiple independent acquisition systems; The bridged second interface converter 3 and the water-gas heat meter concentrator 23 collect real-time data and frozen data of water, gas and heat meters to realize remote control of meters and achieve the purpose of data sharing; 26 and the heat meter 27 are connected with the water gas heat meter concentrator 23 through the first interface converter 24, which can convert the water gas heat meter data of different communication interfaces and communication protocols into standard signals for unified processing, and correspondingly solve the following problems : 1) Communication distance problem: As an independent acquisition device, the interface converter can flexibly choose the installation location according to the needs: such as: 14 boxes of electricity meters, distribution boxes, 25 wells of water meters or independent boxes, so as to solve the problem of communication with water The problem of communication distance between gas and heat meters; 2) The problem of meter interface: the interface converter has a lot of meter interfaces, generally M-BUS, RS485 and micro-power wireless, etc., which can be adapted to connect to various meters; 3) Wireless parameter problem: The wireless parameters of the micro-power wireless module of the interface converter can be customized according to the meter; 4) The problem of multiplexing influence: Compared with the 14-module scheme of the multiplexing meter, the interface converter is hardware independent from the original one. In addition to the electricity collection system, the impact on the original system is small.

In this embodiment, the second interface converter 3 is connected to the water-gas heat meter concentrator 23 through RS485 communication, and the second interface converter 3 is connected to the multi-meter concentrator 13 through power carrier wave or micro-power wireless or dual-mode communication. communication.

In this embodiment, since the water meter 25, the gas meter 26 and the heat meter 27 all have M-BUS interfaces, the first interface converter 24 is connected to the water meter 25, the gas meter 26 and the heat meter 27 through the M-BUS bus . Due to the M-BUS bus mode, it has the following advantages: simple wiring, only two communication lines, no polarity of the bus, no special requirements for the wiring mode, can be connected in parallel or in series; bus power supply, can supply power to the meter through the communication line, It is especially suitable for meters such as water, gas and heat meters that have no power supply; the communication is stable and the anti-interference ability is strong. As long as the twisted pair does not fail, the communication success rate can generally be guaranteed. In other embodiments, the first interface converter 24 and the water meter 25 , the gas meter 26 and the heat meter 27 may also be connected in a micro-power wireless manner. Since the micro-power wireless method is adopted, it has the following advantages: (1) No wiring is required, and on-site engineering construction is convenient; (2) There is no need to pay communication fees to telecom operators; (3) The network is flexible and the data transmission rate is high.

In this embodiment, the first interface converter 24 and the water-gas heat meter concentrator 23 are connected by micro-power wireless; One or more ways of communication are used to connect; the first telecommunication layer 12 and the second telecommunication layer 22 are GPRS network or CDMA network or Ethernet.

The above are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions that belong to the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the present invention should be regarded as the protection scope of the present invention.

Claims (1)

1. A multi-meter-in-one multi-master station acquisition system comprises an electric energy information acquisition system (1) and a water-gas-heat-meter acquisition system (2), wherein the electric energy information acquisition system (1) comprises a first master station layer (11), a first remote communication layer (12), a multi-meter-in-one concentrator (13) and an electric meter (14) which are sequentially connected, and is characterized in that the water-gas-heat-meter acquisition system (2) comprises a second master station layer (21), a second remote communication layer (22), a water-gas-heat-meter concentrator (23) and a first interface converter (24) which are sequentially connected, the first interface converter (24) is respectively connected with a water meter (25), a gas meter (26) and a heat meter (27), and the water-gas-heat-meter concentrator (23) is in communication connection with the multi-meter-in-one concentrator (13) through a second interface converter (3);

the second interface converter (3) is in communication connection with the water-gas-heat meter concentrator (23) through RS485, and the second interface converter (3) is in communication with the multi-meter-in-one concentrator (13) through a power carrier or micropower wireless or dual-mode communication mode;

the first interface converter (24) is connected with the water meter (25), the gas meter (26) and the heat meter (27) in a M-BUS or micropower wireless mode;

the first interface converter (24) is connected with the water-gas-heat meter concentrator (23) in a micro-power wireless mode;

the multi-meter-in-one concentrator (13) is connected with the electric meter (14) in one or more modes of power carrier, micropower wireless and dual-mode communication;

the first telecommunication layer (12) and the second telecommunication layer (22) are GPRS networks or CDMA networks or Ethernet networks.

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