KR101182886B1 - System for calculating remotely the power consumption by using nfc and the method for the same - Google Patents

Abstract

PURPOSE: A remote electric energy metering system and method are provided to easily obtain individual electric energy information of a plurality of digital power meters. CONSTITUTION: A plurality of digital power meters(110-140) measures usage power amount of a consumer. Connectors(10-40) are individually accessed in a plurality of digital power meter output terminals. The connectors receive the usage power amount of the consumer and store it. A power line communications modem(200) transmits and receives information with local area wireless communications. An interface unit receives the usage power amount transferred from the plurality of digital power meters. A controller receives and codes usage power amount information passing through the interface unit. A memory unit receives the coded usage power amount information and stores it. An antenna is connected to the memory unit.

Description

System for calculating remote power amount using wireless communication method and method thereof {System for calculating remotely the power consumption by using NFC and the method for the same}

The present invention relates to a remote power meter reading system and a method using a wireless communication method, preferably of the integrated digital power meter installed in the shopping mall, etc. using a connector and a power line modem each having a function of RFID and RF reader. The present invention relates to a remote power meter reading system and a method using a wireless communication method for easily obtaining individual power amount information.

In general, utilities have had passive relationships as a service provider that simply supplies electricity to consumers.

However, in recent years, the necessity of establishing an additional service system for electric power, such as remote meter reading, demand management, and diversification of the rate system, has been raised to reorganize the electricity industry and improve efficiency.

To this end, the information and communication subscriber network base technology must be secured, but establishing a new communication line remains a big problem.

With recent developments in technology, communication technologies capable of sending and receiving data to power lines for the purpose of supplying electricity have been combined (also called "power line communication (PLC)"), commercialization and commercialization.

The power line is already connected to every corner of the country and is a huge network.

A modem for power line communication is provided, and various data such as customer information and power consumption information are stored in a memory of the power line communication modem.

However, there are a plurality of digital power meters in the form of aggregates in the consumer (shop, etc.), the following problems occur in the transmission and reception of these digital power measurement period data.

That is, in the related art, since the female terminal and the means are separated when connecting the digital power metering period, the worker has to manually perform the wiring work every time in the field, and the defect cost due to the site wiring service cost and the connection error has increased.

In addition, in the related art, several strands of wires are complicatedly messed up, and thus, the installation is not only difficult, but also aesthetically bad.

As a technique to solve this problem, the name of the invention filed on April 14, 2010 by C & O Inc. is "Digital Power Meter Period Connection Structure in the Form of Remote Metering System". .

However, the core of the technology filed by C & OK Co., Ltd. is related to the "integrated connector device standardized for transmitting and receiving data of a plurality of digital power metering periods in a customer." However, the connector itself is not uniform, and still has the disadvantage of adopting a wired cable method.

The present invention has been proposed to solve the above-mentioned problems, and to provide a remote power meter reading system using a short-range wireless communication method that can easily obtain the amount of power used by the customer by using a short-range wireless communication method.

To this end, the present invention intends to construct a connector capable of short-range wireless communication to a digital power meter of each consumer and a power line communication modem capable of short-range wireless communication that can interoperate with the connector.

A remote power meter reading system using a short range wireless communication method, which is one of the preferred embodiments proposed by the present invention, includes a plurality of digital power meters for measuring the amount of power used by a customer, and are individually connected to each of the output terminals of the plurality of digital power meters. It is preferable to have a connector capable of short-range wireless communication for receiving and storing the amount of power consumption of the customer measured by the meter, and a power line communication modem capable of receiving information with the connector by short-range wireless communication.

In a preferred embodiment of the present invention, the connector is an interface unit for receiving the power consumption information transmitted from the digital power meter, a control unit for receiving the power consumption information passing through the interface and the control unit, from the control unit A memory unit for receiving and storing the encrypted use power amount information, and an antenna for short range wireless communication interworking with the memory; Preferably, the connector can receive information from the power line communication modem through the short range wireless communication antenna.

In a preferred embodiment of the present invention, it is preferable that the power line communication modem has a built-in RF reader for short-range wireless communication that allows the connector and the information to be received.

In a preferred embodiment of the present invention, the power line communication modem preferably receives and decrypts the encrypted amount of used power stored in a memory of the connector.

In a preferred embodiment of the present invention, it is possible to receive information with the power line communication modem, it is preferable to further include a power information collecting device for transmitting output information of the plurality of digital power meter to an external server using a wired or wireless network. Do.

In another preferred embodiment of the present invention, a method for reading remote power using a short range wireless communication method may include: (a) transmitting power consumption information of each customer to a connector having a short range wireless communication function from a plurality of digital power meters measuring a power consumption of a customer; Storing by; (b) transmitting and storing the amount of power used by each customer stored in the connector having the short range wireless communication function to the power line communication modem having the short range wireless communication function by a short range wireless communication method; (c) transmitting the amount of power used by each customer stored in the power line communication modem having a short range wireless communication function to a power information collecting device capable of wired and wireless communication with the outside.

In another preferred embodiment of the present invention, in the step (a), the amount of power information transmitted to the connector is stored after the encryption process, in the step (b), the amount of power used to be transmitted to the power line communication modem The information is preferably stored after the decoding process.

In another preferred embodiment of the present invention, the step (b) is preferably performed by the power line communication modem receiving the power consumption command of each customer from the power information collecting device calling the connector by short-range wireless communication. Do.

In another preferred embodiment of the present invention, (d) it is preferable to further include the step of transmitting the power consumption information of each customer to be collected and transmitted to the power information collecting device to an external server via a wired or wireless network.

When using a remote power meter reading system using the short-range wireless communication according to the present invention has the following advantages.

First, the installation work is convenient.

In the present invention, the operation is easily terminated by simply coupling a connector having a function of RFID having unique identification information to the output terminal of the digital power meter.

Second, since all data information is moved by short-range wireless communication, the difficulty of work due to complicated wiring installation is greatly reduced.

1 is a conceptual diagram of a remote power meter reading system using the short-range wireless communication proposed in the present invention.
2 is a basic conceptual view of a connector proposed in the present invention.
3 is a basic conceptual view of a power line communication modem capable of short-range wireless communication proposed in the present invention.

The remote power meter reading system and method using the short-range wireless communication proposed in the present invention can be variously modified and have various embodiments. Specific embodiments will be illustrated in the drawings and described in detail in the detailed description. .

It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing.

The terms first, second, A, B, etc. may be used to describe various elements, but the elements should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that other components may be present in between. Should be. On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

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

1 is a conceptual diagram of a remote power meter reading system using the short-range wireless communication proposed in the present invention, Figure 2 is a basic conceptual view of the connector proposed in the present invention, Figure 3 is a power line communication capable of short-range wireless communication proposed in the present invention A basic conceptual diagram of a modem.

As shown in FIG. 1, the remote power meter reading system using short-range wireless communication according to the present invention includes a plurality of digital power meters 110, 120, 130, and 140, and a plurality of digital power meters 110, 120, 130, To the connectors 10, 20, 30, and 40 coupled to the 140, the power line communication modem 200 capable of short-range wireless communication with the connectors 10, 20, 30, and 40, and the power line communication modem 200, respectively. It is preferable to include a power information collecting device 300 for receiving and storing the collected information.

The plurality of digital power meters 110, 120, 130, and 140 perform a function of measuring the amount of power used by a consumer to receive power from an assembly building such as a shopping mall, and are generally collected and installed in a specific place.

Next, the basic structure of the connectors 10, 20, 30, and 40 coupled to the plurality of digital power meters 110, 120, 130, and 140, respectively, is shown in FIG. (2: MCU), a memory (3: preferably EEPROM), and an antenna 4 are basically included.

The basic structure and configuration of these connectors are generally the same, but as shown in FIG. 3, unique identification information of a connector for identifying a recipient or managing a product varies from connector to connector.

As shown in FIG. 2, the control unit 2 (MCU), the memory 3, and the short-range wireless communication antenna 4 constituting these connectors are preferably implemented by RFID. The product name M24LR64 EEPROM (which is just an example) with a frequency band of approximately 13.56 MHz developed and released by ST Microelectronics in March, but this is only one example of the implementation of the present invention.

One of the features of the aforementioned M24LR64 EEPROM is that it not only has a standard I2C serial interface that supports communication with most microcontrollers, ASICs, but also has a standard ISO15693 radio frequency (RF) interface that supports short-range wireless communications. For reference, the ISO15693 standard is passive RFID technology.

The M24LR64 EEPROM product requires no special power to operate in RF mode, which not only saves onboard energy on the system, but also offers the advantage of simple and convenient remote processing of electronics product parameters.

On the other hand, as described above, the memory of each connector 10, 20, 30, 40 stores the unique identification information and the power consumption information.

Unique identification information This is a user identification code or a product identification code, and the power usage information refers to the amount of power used by each customer stored through the digital power meter.

As shown in FIG. 1, each of these connectors 10, 20, 30, and 40 is individually connected to each of the output terminals of the plurality of digital power meters 110, 120, 130, and 140, and the digital power meters 110, 120. , 130 and 140 receive and store the amount of power used by each customer.

Next, each connector (10, 20, 30, 40) for storing the power consumption information of each customer is provided with a RFID having a unique identification information as described above, short-range wireless communication with the power line communication modem 200 to be described later This is possible.

The power line communication modem 200 proposed by the present invention is equipped with an RF reader capable of short-range wireless communication in a general power line communication modem capable of power line communication. Therefore, the power line communication modem 200 may activate the RF reader in the home to read the amount of power used by each customer stored in the memory of the connectors 10, 20, 30, and 40.

That is, the power line communication modem 200 may receive the amount of power used by each customer stored in the memory (preferably EEPROM) of the connectors 10, 20, 30, and 40 using the short range wireless communication method.

Next, the power information collecting device 300 includes a data collecting unit (DCU) including a control unit and a storage unit, and a communication module capable of communicating with an external server (not shown) through a wired or wireless network (preferably, WCDMA communication is possible). Communication module).

The data collection unit (DCU) commands the power line communication modem 200 periodically or aperiodically to request information on the amount of power used by each customer, and in response, the power line communication modem 200 performs short-range wireless communication as described above. By using the method, information on the amount of power used by each customer stored in the memory (preferably EEPROM) of the connector 10, 20, 30, 40 is obtained and transmitted to the data collection unit (DCU).

Meanwhile, the power information collecting device 300 may receive and store information on the amount of power used by each customer stored in the power line communication modem 200 and transmit the information to the external server through a communication module periodically or aperiodically.

Hereinafter, after explaining the operation of the digital power meter and the connector connected thereto to measure the amount of power used by the customer, the process of the power consumption information stored in the connector is transmitted to the power information collecting device 300 via the power line communication modem 200 This will be described.

For reference, for convenience of description, the description will be made based on the digital power meter 110 that measures the amount of power used by any customer in real time, but it is preferable to understand that the operations of the remaining digital power meters 120, 130, and 140 are also the same.

First, the operation of a digital power meter and a connector connected thereto for measuring the amount of power used by the customer will be described.

When electricity is used at a particular customer, the amount of power used is measured in real time by the digital power meter 110 connected to the customer, and is displayed through a display unit generally installed in the digital power meter 110.

Then, the power consumption information of the digital power meter 110 is stored in the memory 3 through the interface 1 periodically or in real time by the control unit 2 of the connector 10.

That is, the controller 2 of the connector 10 receives the power usage information measured by the digital power meter 110 through the interface 1 and stores it in the memory 3 made of EEPROM. Therefore, the power consumption stored in the memory 3 is periodically updated.

For reference, the power usage information transmitted from the digital power meter 110 is preferably stored in the memory 3 after the first encryption (encoding) process in the control unit 2.

Here, the reason for the encryption process is to prevent unauthorized leakage of power amount information by the use of any wireless terminal capable of short-range wireless communication.

Next, a description will be given of a process in which the power consumption information of the customer stored in the connector is transferred to the power information collecting device 300 via the power line communication modem 200.

The data collecting unit (DCU) of the power information collecting device transmits a command for requesting power consumption information of each customer periodically or aperiodically to the power communication network modem 200.

The power network modem 200, which has received the command, activates an RF reader installed therein.

Correspondingly, the antenna for short-range wireless communication of each connector 10, 20, 30, and 40 is activated, and the unique identification information and the encrypted power amount information stored in each memory are transmitted to the power communication network modem 200.

For reference, the power communication network modem 200 stores power information after decrypting (decoding) the received power information.

This means that the power amount information used by each customer can be received and stored effectively only when using the power communication network modem 200 provided by the present invention. By doing so, the power information in the connector can be unauthorized by using any wireless terminal. Collection can be prevented.

The unique identification information and the used power amount information of each customer transmitted to the power communication network modem 200 are stored in the data collecting unit (DCU) of the power information collecting device 300.

Unique identification information and power consumption information of each customer stored in the data collection unit (DCU) are transmitted to an external server through a communication module interworking with a wired or wireless network periodically or aperiodically.

In the present invention, it is preferable that the power information collecting device 300 requests power usage information of the receiver to the power line communication modem 200 periodically according to a predetermined program, but if necessary, a command received through an external server. According to the aperiodic, it is also possible to request information of the amount of power used by the prisoner. In addition, if necessary, only the power consumption information of a specific receiver may be requested. This is because each of the connectors 10, 20, 30, and 40 has different unique identification information for identifying the information of the receiver.

The technical idea of the present invention described above is to acquire power usage information of a digital power meter using a connector having an RFID function and a power line communication modem having an RF reader function. It should be considered that all matters obvious to those skilled in the art due to a simple change in communication modem function or structure are included in the basic structure described in the present invention.

1: interface
2: control unit
3: Memory
4: antenna
10, 20, 30, 40: connector
110, 120, 130, 140: digital power meter
200: power line communication modem
300: power information collecting device

Claims (9)

delete A plurality of digital power meters for measuring the amount of power used by the customer;
A connector which is individually connected to each of the output terminals of the plurality of digital power meters and capable of short-range wireless communication for receiving and storing the used power amount information of the customer measured by the digital power meter;
It is provided with a power line communication modem capable of receiving information with the connector by short-range wireless communication,
The connector may include an interface unit for receiving use power amount information transmitted from the digital power meter, a controller configured to receive the use power amount information passed through the interface, and the encrypted use power amount information from the control unit. And a memory unit for storing and an antenna for short range wireless communication that is linked with the memory.
The connector is a remote power meter reading system using a short-range wireless communication method, characterized in that the transmission of information with the power line communication modem through the short-range wireless communication antenna. The method of claim 2,
The power line communication modem is a remote power meter reading system using a short-range wireless communication method, characterized in that the built-in short-range wireless communication RF reader that enables the information transfer with the connector. The method of claim 2,
The power line communication modem is a remote power meter reading system using a short-range wireless communication method, characterized in that for receiving and decrypting the encrypted power usage information stored in the memory of the connector. The method of claim 2,
It is possible to receive information with the power line communication modem, and remotely using a short-range wireless communication method characterized in that it further comprises a power information collecting device for transmitting the output information of the plurality of digital power meter to an external server using a wired or wireless network. Power meter reading system. delete (a) transmitting and storing power usage information of each customer from a plurality of digital power meters measuring the power consumption of the customer to a connector having a short range wireless communication function;
(b) transmitting and storing the amount of power used by each customer stored in the connector having the short range wireless communication function to the power line communication modem having the short range wireless communication function by a short range wireless communication method;
(c) transmitting the amount of power used by each customer stored in the power line communication modem having a short range wireless communication function to a power information collecting device capable of wired and wireless communication with the outside;
In the step (a), the power consumption information transmitted to the connector is stored after the encryption process,
In the step (b), the amount of power usage information transmitted to the power line communication modem is stored after the decoding process, the remote power meter reading method using a short-range wireless communication method. The method of claim 7, wherein
The step (b) is a remote power amount using the short-range wireless communication method characterized in that the power line communication modem receiving the command to collect the amount of power used by each customer from the power information collection device calls the connector by short-range wireless communication; Meter Reading Method. The method of claim 7, wherein
and (d) transmitting power usage information of each customer collected and transmitted to the power information collecting device to an external server through a wired / wireless network.

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