KR20160093453A - Remote meter reading system using ip based wired and wireless network common use way - Google Patents

Remote meter reading system using ip based wired and wireless network common use way Download PDF

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Publication number
KR20160093453A
KR20160093453A KR1020150014484A KR20150014484A KR20160093453A KR 20160093453 A KR20160093453 A KR 20160093453A KR 1020150014484 A KR1020150014484 A KR 1020150014484A KR 20150014484 A KR20150014484 A KR 20150014484A KR 20160093453 A KR20160093453 A KR 20160093453A
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KR
South Korea
Prior art keywords
network
communication
unit
communication network
wired
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KR1020150014484A
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Korean (ko)
Inventor
김영억
박종태
김승균
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한전케이디엔주식회사
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Priority to KR1020150014484A priority Critical patent/KR20160093453A/en
Publication of KR20160093453A publication Critical patent/KR20160093453A/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/06—Indicating or recording devices
    • G01F15/065—Indicating or recording devices with transmission devices, e.g. mechanical
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
    • G01R11/30—Dynamo-electric motor meters
    • G01R11/34—Ampere-hour meters
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/02—Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Selective Calling Equipment (AREA)

Abstract

A remote meter reading system using an internet protocol (IP) based wired and wireless network common use way of the present invention comprises: an IP based smart meter which separates a wired network and a wireless network into a neighbor area network (NAN) section, is connected to an IP network which manages networks by means of IP, is managed on the basis of an IP address, reads an amount of powers of a customer, and transmits the reading data; and a data concentrating device which collects the reading data transmitted by the IP based smart meter through the IP network, and transmits the same.

Description

{REMOTE METER READING SYSTEM USING IP BASED WIRED AND WIRELESS NETWORK COMMON USE WAY}

The present invention relates to an IP-based wired / wireless communication network-type remote meter reading system, and more particularly to an IP-based remote meter reading system for a wired / wireless communication network and a wireless communication network in a NAN (Neighbor Area Network) And provides an IP-based smart meter that is managed based on IP address. Therefore, not only the data transmission error rate can be remarkably reduced when data is transmitted to the upper end, and it is possible to individually manage more devices by IP, , And an IP-based wire / wireless communication network common method remote meter reading system.

Remote meter reading refers to the reading of meter reading data from a remote place without visiting the customer, such as electricity, gas, water meter, etc., and the remote meter reading system reads the indication of the meter located at the remote place and the detected information by the detector, Or automatically collected through a communication line using radio waves and analyzed by a computer.

Such an automatic meter reading system collects information by a telephone line, a power line, or a radio frequency system, and can connect with a computer program through a remote meter reading system to issue a bill and grasp a demand pattern.

However, in the conventional remote meter reading system, it is possible to use a method of transmitting the meter reading data from the meter reading device to the host system by using various wired / wireless communication methods. In this case, one communication method is designated The data transmission error rate is increased not only when the data is transmitted to the upper end but also when the number of the devices used for the remote meter reading increases.

Korean Patent Publication No. 10-2012-0066799

Disclosure of Invention Technical Problem [8] The present invention provides an IP-based smart phone that is connected to an IP communication network that manages a network using an IP (Internet Protocol) by separating a wired communication network and a wireless communication network into NAN By providing a meter, it is possible to remarkably reduce the data transmission error rate during data transmission to the upper end, and it is possible to individually manage more devices by IP, .

According to an aspect of the present invention, there is provided an IP-based wire / wireless communication method interrogation system for an Internet Protocol (IP) network that separates a wired communication network and a wireless communication network into NAN (Neighbor Area Network) An IP-based smart meter connected to the network, managed based on the IP address, for meter reading the amount of power on the customer side and transmitting the meter reading data; And a data concentrator for collecting and transmitting meter reading data transmitted by the IP-based smart meter through the IP communication network.

The present invention not only remarkably reduces the data transmission error rate at the time of data transmission to the upper layer, but also has a technical effect advantageous for maintenance because it is possible to individually manage more devices by IP.

1 schematically shows a configuration of an IP-based wire / wireless communication network-type remote meter-reading system according to the present invention.
FIG. 2 illustrates a structure of an IP communication network according to an embodiment of the present invention.
FIG. 3 shows a detailed configuration of an IP-based smart meter according to the present invention.
FIG. 4 shows a detailed configuration of a relay bridge according to the present invention.
FIG. 5 shows a detailed configuration of a data concentrator according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

1 schematically shows a configuration of an IP-based wire / wireless communication network-type remote meter-reading system according to the present invention.

Referring to FIG. 1, an IP-based wired / wireless communication method-based remote meter reading system according to the present invention includes an IP-based smart meter 100, a data concentrator 100 for communicating with an IP- Device 200 and a server 300. As shown in FIG.

The IP-based smart meter 100 is a meter reading device connected to the IP communication network 10 and managed on the basis of an IP (Internet Protocol) address. The meter is used to meter the amount of electric power on the customer's side and transmit the meter reading data to the IP communication network 10 The data is transmitted to the data concentrator (DCU) 200, and a detailed description thereof will be given later with reference to FIG.

The data concentrator (DCU) 200 collects the metering data transmitted from the IP-based smart meter 100 through the IP network 10 and transmits the metered data to the upper stage server 300 through various types of wireless networks and wired networks send.

FIG. 2 illustrates a structure of an IP communication network according to an embodiment of the present invention.

Referring to FIG. 2, the IP communication network 10 according to the present invention includes a first IP communication network 10-1 and a second IP communication network 10-2.

The first IP communication network 10-1 includes a high speed PLC 11, a 6LowPAN 12 and a first relay bridge 400-1. The first relay bridge 400-1 includes a high speed PLC 11, 6LowPAN 12, and is managed based on IP. A detailed description thereof will be given later with reference to FIG.

In this case, the high-speed PLC 11, which provides a communication network connecting with the data concentrator 200 through the first connection port N1 on the basis of the first relay bridge 400-1, is connected to a first NAN (Neighbor Area Network) 6LowPAN 12, which is managed by the first relay bridge 400-1 and provides a communication network connecting the IP-based smart meter 100 with the second connection port N2 on the basis of the first relay bridge 400-1, Area Network).

6LowPAN (12) provides the network to implement the so-called Wireless Embedded Internet technology that directly links the sensor network with the IPv6 network with IEEE 802.15.4-2006.

Internet Protocol version 6 (IPv6) is a 128-bit address system, which has 3.4 * 10 38 address numbers. Addresses are hierarchically assigned based on CIDR. Address types are unicast, multicast, and anycast It has advantages such as ① increase of network speed ② high quality service through specific packet recognition ③ packet source authentication through header extension, data integrity and confidentiality guarantee.

The second relay bridge 400-2 includes the high speed PLC 11, the low speed PLC 13 and the second relay bridge 400-2. The second relay bridge 400-2 includes the high speed PLC 11, And the low-speed PLC 13, and is managed based on IP, and a detailed description thereof will be given later with reference to FIG.

In this case, the high-speed PLC 11, which provides a communication network connecting with the data concentrator 200 via the third connection port N3 based on the second relay bridge 400-2, is connected to a first NAN (Neighbor Area Network) And the low-speed PLC 13, which is managed by the second relay bridge 400-2 and provides a communication network connecting with the IP-based smart meter 100 via the fourth connection port N4 on the basis of the second relay bridge 400-2, Neighbor Area Network).

The first NAN and the second NAN manage a node participating in each network by a network management system (NMS), which is its own communication. At this time, the first IP network 10-1 and the second IP network 10 -2), the NMS is managed by each IP assigned to the IP-based smart meter 100.

In the meantime, in the present invention, the 6LowPAN communication network has been described as a wired network such as a PLC communication network and a wireless network. However, the present invention is not limited thereto, RF, Code Division Multiple Access (CDMA), WiFi, 3G, 4G, LTE, LTE-A, and Wireless Broadband Internet.

FIG. 3 shows a detailed configuration of an IP-based smart meter according to the present invention.

3, the IP-based smart meter 100 includes a meter reading unit 110, an IP connection modem unit 120, a communication performance determination unit 130, a common interface module 140, an IP management unit 150, a data storage unit 160, and a smart meter control unit 170.

The meter reading unit 110 obtains the meter reading data of the customers. In this case, the meter reading data includes data such as the amount of power supplied to the customer, the amount of power consumed in the customer, and the power factor.

The IP connection modem unit 120 includes the first IP connection modem 120-1 to the nth IP connection modem 120-n and is connected to a wired or wireless network provided by the IP communication network 10.

2, the first IP access modem 120-1 is connected to the 6LowPAN 12 managed in the second NAN (Neighbor Area Network), and the second IP access modem 120-2 is connected to the second IP access modem 120-2. And the other third to nth IP access modems 120-3 to 120-n are connected to a low-speed PLC 13 managed in a second NAN (Neighbor Area Network) ) Connected to various types of wired or wireless networks.

The communication performance determination unit 130 determines a performance value for the wired or wireless network provided by the IP communication network 10 such as RSSI, packet delay IPDV, packet loss rate IPLR, ) And an absolute value of the packet error rate (IPER), and calculates an average communication performance value for these values to determine a modem having the largest value, that is, a communication modem having the highest gain.

Here, the average communication performance value is a value obtained by giving a communication performance value to each measurement item and then averaging the communication performance value for these items, and the larger the value is, the better the communication performance is.

The common interface module 140 is a common interface module having a common interface size of pin size, size and form so that the first IP connection modem 120-1 to the nth IP connection modem 120- Module.

The IP management unit 150 allocates an IP (Internet Protocol) address for each smart meter device and manages the IP (Internet Protocol) in the network layer instead of the MAC layer through the TCP / IP network management protocol.

The data storage unit 160 stores the meter reading data and the data processed by the smart meter controller 170, and a nonvolatile memory such as a flash memory may be used as the storage medium.

The smart meter control unit 170 controls the meter reading unit 110, the IP connection modem unit 120, the communication performance determination unit 130, the common interface module 140, the IP management unit 150 and the data storage unit 160 do.

FIG. 4 shows a detailed configuration of a relay bridge according to the present invention.

4, a relay bridge 400 according to the present invention includes a wireless communication modem unit 410, a wired communication modem unit 420, a communication performance determination unit 430, a common interface module 440, an IP management unit 450 and a relay bridge control unit 460.

The wireless communication modem unit 410 includes a first wireless communication modem 410-1 to an nth wireless communication modem 410-n using different wireless communications. For example, the first wireless communication modem 410-1 May be a Zigbee provided by the IP communication network 10 and an nth wireless communication modem 410-n may use RF provided by the IP communication network 10 or the like.

The wired communication modem unit 420 includes a first wired communication modem 420-1 to an nth wired communication modem 420-n using different wired communication. For example, the first wired communication modem 420-1 May be a power line communication (PLC) provided by the IP communication network 10 and an RS-485 provided by the IP communication network 10 for the nth wired communication modem 420-n.

The communication performance determination unit 430 determines a performance value for a wired or wireless network provided by the IP communication network 10 such as a RSSI, a packet delay (IPTD), a packet delay variation (IPDV), a packet loss rate ) And an absolute value of the packet error rate (IPER), and calculates an average communication performance value for these values to determine a modem having the largest value, that is, a communication modem having the highest gain.

Here, the average communication performance value is a value obtained by giving a communication performance value to each measurement item and then averaging the communication performance value for these items, and the larger the value is, the better the communication performance is.

The common interface module 440 is composed of one common module having an interface standard having the same pin size, size, and form so that the wireless communication modem unit 410 and the wired communication modem unit 420 can be integrated.

The IP management unit 450 allocates an IP (Internet Protocol) address for each relay bridge device and manages the IP (Internet Protocol) in the network layer instead of the MAC layer through the TCP / IP network management protocol.

The relay bridge control unit 460 controls the wireless communication modem unit 410, the wired communication modem unit 420, the communication performance determination unit 430, the common interface module 440, and the IP management unit 450.

FIG. 5 shows a detailed configuration of a data concentrator according to the present invention.

5, a data concentrator 200 according to the present invention includes an IP connection modem unit 210, a communication performance determination unit 220, a common interface module 230, a data storage unit 240, and a DCU control unit 250).

The IP connection modem unit 210 includes a first IP connection modem 210-1 to an nth IP connection modem 210-n and is connected to a wired or wireless network provided by the IP communication network 10.

2, the first IP access modem 210-1 and the second IP access modem 210-2 are connected to a high-speed PLC 11 managed in a first NAN (Neighbor Area Network) In a similar manner, the third to nth IP access modems 220-3 to 220-n are connected to various types of wired or wireless networks managed in a first NAN (Neighbor Area Network).

The communication performance determination unit 1220 determines a performance value for a wired or wireless network provided by the IP communication network 10 such as RSSI, packet delay IPDV, packet loss rate IPLR, ) And an absolute value of the packet error rate (IPER), and calculates an average communication performance value for these values to determine a modem having the largest value, that is, a communication modem having the highest gain.

Here, the average communication performance value is a value obtained by giving a communication performance value to each measurement item and then averaging the communication performance value for these items, and the larger the value is, the better the communication performance is.

The common interface module 230 is a common interface module having a common interface size of pin size, size and form so that the first IP connection modem 210-1 to the nth IP connection modem 210- Module.

The DCU control unit 250 controls the IP connection modem unit 210, the communication performance determination unit 220, the common interface module 230, and the data storage unit 240.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit of the invention.

100: IP based smart meter
200: Data Concentrator
300: server
10: IP network
10-1 and 10-2: first and second IP communication networks
11: High speed PLC
12: 6LowPAN
13: Low speed PLC
400-1, 400-2: first and second relay bridges

Claims (5)

It is connected to an IP communication network that manages the network by IP (Internet Protocol) by separating the wired communication network and the wireless communication network into the NAN (Neighbor Area Network) section, and is managed based on the IP address. IP based smart meter; And
And a data concentrator for collecting and transmitting the meter reading data transmitted by the IP-based smart meter through the IP communication network. The IP network according to claim 1,
A first wired communication network;
A first wireless communication network; And
And an intermediary bridge that links the first wired communication network and the first wireless communication network and is managed based on an IP address. 3. The relay station according to claim 2,
A wireless communication modem unit including a plurality of wireless communication modems of various types;
A wired communication modem unit including a plurality of wired communication modems of various types;
A communication performance discrimination unit for discriminating a communication modem having the highest gain by checking the communication performance of the wireless communication modem unit and the wired communication modem unit;
A common interface module for commonly interfacing with the wireless communication modem unit and the wired communication modem unit;
An IP manager for assigning an IP address and managing an IP (Internet Protocol) in a network layer through a TCP / IP network management protocol; And
And a relay bridge control unit for controlling the wireless communication modem unit, the wired communication modem unit, the communication performance determination unit, the common interface module, and the IP management unit. The smart meter of claim 1, wherein the IP-
A meter reading unit for obtaining meter reading data of the customers;
An IP connection modem unit including a plurality of communication modems IP-connected to a wired communication network or a wireless communication network forming the IP communication network;
A communication performance discrimination unit for discriminating a communication modem having the highest gain by checking the communication performance of the IP connection modem unit;
An IP manager for assigning an IP address and managing an IP (Internet Protocol) in a network layer through a TCP / IP network management protocol; And
And a smart meter control unit for controlling the meter reading unit, the IP connection modem unit, the communication performance determination unit, and the IP management unit. The method according to claim 1,
The wired communication network uses one of PLC, RS-485, and Ethernet,
The wireless communication network may be any one of 6LowPAN, Zigbee, RF, Code Division Multiple Access (CDMA), WiFi, 3G, 4G, LTE, LTE-A and Wireless Broadband Internet Wherein said IP-based remote meter reading system is a public telecommunication system.
KR1020150014484A 2015-01-29 2015-01-29 Remote meter reading system using ip based wired and wireless network common use way KR20160093453A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107680357A (en) * 2017-07-04 2018-02-09 国网浙江省电力公司嘉兴供电公司 A kind of grid-connected information kilowatt meter reading-out system
KR20190023291A (en) * 2017-08-28 2019-03-08 주식회사 지오플랜코리아 GATEWAY THAT EFFICIENTLY RELAY 6LoWPAN NODE AND LPWA NETWORK SERVER AND OPERATION METHOD THEREOF
KR20210012481A (en) * 2019-07-25 2021-02-03 한전산업개발 주식회사 System of power line communication for supporting an advanced metering infrastructure and operation method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120066799A (en) 2010-12-15 2012-06-25 한국전자통신연구원 Load control apparatus and method for advanced metering infrastructure network

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120066799A (en) 2010-12-15 2012-06-25 한국전자통신연구원 Load control apparatus and method for advanced metering infrastructure network

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107680357A (en) * 2017-07-04 2018-02-09 国网浙江省电力公司嘉兴供电公司 A kind of grid-connected information kilowatt meter reading-out system
KR20190023291A (en) * 2017-08-28 2019-03-08 주식회사 지오플랜코리아 GATEWAY THAT EFFICIENTLY RELAY 6LoWPAN NODE AND LPWA NETWORK SERVER AND OPERATION METHOD THEREOF
KR20210012481A (en) * 2019-07-25 2021-02-03 한전산업개발 주식회사 System of power line communication for supporting an advanced metering infrastructure and operation method thereof

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