KR102548260B1 - Method for improving data accuracy of energy measuring device and energy measuring device performing the method - Google Patents

Abstract

A method for improving data accuracy of a power sensing device, comprising: (a) measuring an amount of power produced or consumed by a power generating object or a power consuming object through a power sensing device; (b) transmitting the measured amount of power to a server in a first cycle when the data change width measured in real time through the power sensing device is equal to or greater than a preset value; and (c) after step (a), if the range of change of the data measured in real time is equal to or less than the predetermined value, transmitting the measured amount of power to the server at a second period longer than the first period; can include

Description

Method for improving data accuracy of power sensing device and power sensing device

In the present invention, in measuring the amount of power produced and consumed by a power generating object or power consuming object and transmitting data on the measured amount of power to a server, the amount of power change while maintaining a constant amount of data communication for the entire period within a limited amount of data transmission It relates to an apparatus and method for increasing data precision of power amount in a section where is large.

Renewable energy (RENEWABLE ENERGY) is non-polluting energy that can replace existing fossil fuels and nuclear power, and is generally understood as an element constituting alternative energy. For example, it means energy obtained through solar heat, photovoltaic power generation, biomass, wind power, geothermal and ocean energy, etc.

In addition, whenever electricity is produced through fossil fuels and nuclear power, destruction of nature increases, and the risk of depletion of fossil fuel and nuclear resources is emerging.

As interest in renewable energy increases in modern times, campaigns such as RE100 to use 100% of the electricity used by companies are generated through eco-friendly renewable energy sources.

However, in general, consumers who use electricity do not generally have a way to check whether the electricity they consume is produced through any method, and it is difficult to plan power management because they cannot check the generation method of electricity.

In this situation, a plan to create statistics on recently produced and consumed power is being sought for planned power management, and the development of technology to measure the amount of power produced and consumed through smart meters and convert it into data has been made. are losing

At this time, when the smart meter operates to transmit data to the server using wireless communication, it operates under a preset communication rate plan, and there is a limit on the amount of communication according to the rate plan. However, when a special event occurs, such as a sudden decrease or rapid increase in power consumption, it is necessary to send data to the server in a short period, requiring the administrator's attention and at the same time sending data at an important moment with precision. Since the transmission period is constantly determined by the total amount of data allowed for a specific period and the maximum amount of data that can be transmitted at one time, it is difficult to transmit data with precision at an important moment.

In order to solve the above problems, an object of the present invention is to provide statistics on consumed power so that consumers (or companies) can identify the source of the power they use for a preset period of time. In addition, consumers can check the ratio of power generation through renewable energy among the used electricity, store the information in a block chain to efficiently manage it, and store the information in a block chain, which is one of the unique roles of the block chain. It is possible to guarantee that the stored data is not forged or tampered with, and it is possible to provide a method for improving the data accuracy of the power sensing device for measuring the amount of power change while using a limited amount of data communication.

However, the technical problem to be achieved by one embodiment of the present invention is not limited to the technical problem as described above, and other technical problems may exist.

As a technical means for achieving the above-described technical problem, in a method for improving data accuracy of a power sensing device, (a) measuring the amount of power produced or consumed from a power generating object or a power consuming object through a power sensing device ; (b) transmitting the measured amount of power to a server in a first cycle when the data change width measured in real time through the power sensing device is equal to or greater than a preset value; and (c) after step (a), if the range of change of the data measured in real time is equal to or less than the predetermined value, transmitting the measured amount of power to the server at a second period longer than the first period; can include

Also, the period for determining the data change width may be shorter than the first period.

In addition, the maximum amount of data transmission per time that can be transmitted for each period and the maximum accumulated data transmission amount that can be accumulated and transmitted during a specific period are preset, and the first period and the second period are the maximum data transmission amount per time and the maximum accumulated data It can be scheduled to satisfy less than the transmission amount.

In addition, in the step (b), when it is determined that the data change range is greater than or equal to a preset value, the amount of power measured during the first time period from the point immediately before the transmission of the amount of power to the point in time when it is determined that the amount of power is greater than or equal to the preset value It may include transmitting data about to the server.

In addition, in the step (b), data on the amount of power in a section in which the amount of power is less than or equal to the preset value during the first time period and recent data about the amount of power in a section in which the amount of power is greater than or equal to the preset value may be transmitted to the server together. there is.

In the step (b), data on the amount of power in a section where the amount of power is equal to or less than the preset value during the first time section is divided into recent data about the amount of power in a section where the amount of power is equal to or greater than the preset value, can be sent to the server.

In addition, in the step (c), even when there is no data change range, the amount of power can be transmitted according to the limit transmission period longer than the second period.

In addition, an apparatus for providing a method for improving data accuracy of a power sensing device includes: a memory storing a program related to a method for improving data accuracy of a power sensing device; and a processor executing the program; Including, but, when the processor measures the amount of power generated or consumed from the power generating object or the power consuming object through the power sensing device by executing the program, and the data change width measured in real time is greater than a preset value , The measured amount of power is transmitted to the server in a first cycle, but when the data change width measured in real time is less than or equal to the preset value, the measured amount of power in a second period longer than the first period. Can be transmitted to the server.

A method for improving data accuracy of a power sensing device, performed by a server, (a) from a power sensing device provided for each power generating object or each power consuming object and measuring the amount of power produced or consumed Receiving a unique identifier of the power sensing device, power generation or power consumption; (b) Based on the unique identifier, power production or power consumption for each power sensing device, calculating statistical values of power produced or consumed by each power generating object or power consuming object for each preset period within a predetermined period step; (c) transmitting the statistics corresponding to a specific period to a user terminal; Including, but the step (a), (a-1) measuring the amount of power generated or consumed from the power generating object or the power consuming object through a power sensing device; (a-2) transmitting the measured amount of power to a server in a first cycle when the data change width measured in real time through the power sensing device is equal to or greater than a preset value; and (a-3) after the step (a-1), if the range of change of the data measured in real time is less than or equal to the predetermined value, transmitting the measured amount of power to the server at a second period longer than the first period. ; can include

According to an embodiment of the present invention, when the device measuring the amount of power transmits data, within the limited amount of data transmission, while maintaining the amount of communication for the entire period constant, data transmission and reception is relatively small in a section where the change in power amount is small. And, by applying a relatively large amount of communication to a section with a large amount of change in power, it is possible to improve the precision of the power amount data in the time section to be interested in.

1 is a diagram showing the configuration of a system for analyzing power consumption for each power generation object according to an embodiment of the present invention.
2 is a diagram showing the configuration of a server according to an embodiment of the present invention.
3 is an operational flowchart illustrating a process of analyzing power consumption for each power generation object according to an embodiment of the present invention.
4 is an operation flowchart illustrating a power amount data transmission process of a power sensing device for measuring a data change width according to an embodiment of the present invention.
5 is an operational flowchart for a method of transmitting accumulated data in a power amount data transmission process of a power sensing device for measuring a data change width according to an embodiment of the present invention.
6 is an exemplary diagram for explaining a transmission period of power amount data of a power sensing device for measuring a data change width according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail so that those skilled in the art can easily practice the present invention with reference to the accompanying drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a part is said to be "connected" to another part, this includes not only the case where it is "directly connected" but also the case where it is "electrically connected" with another element interposed therebetween. . In addition, when a part "includes" a certain component, this means that it may further include other components, not excluding other components, unless otherwise stated, and one or more other characteristics. However, it should be understood that it does not preclude the possibility of existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

The following examples are detailed descriptions for better understanding of the present invention, and do not limit the scope of the present invention. Therefore, inventions of the same scope that perform the same functions as the present invention will also fall within the scope of the present invention.

Throughout the specification, the server 100 may refer to a device that analyzes power consumption for each power generating object.

Hereinafter, before referring to the technical features of the smart meter according to an embodiment of the present invention, which can differently adjust the transmission period according to the data change width to improve data accuracy, the smart meter according to an embodiment of the present invention I would like to first mention the premise of whether it can be used. However, the system described below is only an example, and the smart meter according to an embodiment of the present invention can be used in various systems that require power measurement other than the system described below.

In addition, both the power generation detecting device and the power consumption detecting device appearing in the following description may mean a smart meter.

1 is a diagram showing the configuration of a system for analyzing power consumption for each power generation object according to an embodiment of the present invention.

Referring to FIG. 1 , according to an embodiment of the present invention, a system may include a server 100 and a user terminal 200 . At this time, although not shown in the drawing, the server 100 and the user terminal 200 may be connected to each other in a wired or wireless manner through a communication network.

According to an embodiment of the present invention, the power generation object 300 is provided with a power generation detection device 310 to measure the amount of electricity produced in real time, and the power consumption object 400 has a power consumption detection device 410 It is provided and characterized in that it measures the amount of power consumption in real time.

In addition, the server 100 receives the unique identifier, power production and power consumption of each device from the power generation detecting device 310 and the power consumption detecting device 410, and determines the unique identifier, power generation and power consumption for each device. Based on this, statistical values of power produced or consumed by each power producing object 300 and power consuming object 400 are calculated for each time unit (for each preset period) within a predetermined period, and the user terminal 200 provides the It is characterized by providing

At this time, the power generation object 300 may correspond to an object that produces power (energy). For example, it is a large-scale power generation object 300 such as a hydroelectric power plant, a thermal power plant, or a renewable energy production plant (eg, a solar power plant, a geothermal power plant, a wind power plant, etc.), or a small unit such as a photovoltaic power generation module. It is possible to group and manage the power generation object 300 of the first power generation object 301, and conversely, a power generation method that does not interest users who use fossil fuels such as thermal power generation is a second power generation object 302 ) to be classified. In addition, those not included in the above two categories (for example, energy introduced into the energy complex from the outside) are classified as a third power generation object 303.

Meanwhile, in addition to these criteria, arbitrary classification criteria may be further added. For example, classification conditions for each component may be formed in various ways as necessary, such as a renewable energy group, a renewable energy group excluding biomass, and a new renewable energy group including a fuel cell. Criteria for classifying power generation objects may be set in various ways, and are not necessarily limited to the examples described in the present invention.

At this time, the power generation detection device 310 is provided for each power generation object 300, measures the amount of power produced by the power generation object 300, and measures the amount of power produced by the block chain network 500 including the server 100. ) will be transmitted.

In addition, the power consuming object 400 includes a first power consuming object 401 receiving power from the power producing object 300 and a second power consuming object 402 receiving surplus power remaining after consumption of other power consuming objects. may consist of It may correspond to an object that consumes power (energy). For example, a general home or office can be classified as the first power consuming object 401 because it receives power directly generated from the power generating object 300, and a factory receives surplus power remaining after consumption by a specific complex It can be classified as the second power consuming object 402 because it can be used by doing so.

In addition, the power consumption detecting device 410 is provided in each power consuming object 400, measures the amount of power consumed by the power consuming object 400, and blocks the blockchain network 500 including the server 100. ) can be transmitted.

In this case, the power generation detecting device 310 or the power consumption detecting device 410 may be installed in a switchboard provided in the power generating object 300 or the power consuming object 400 . However, it may be provided separately from the switchboard according to the location or measurement efficiency of the switchboard to be installed.

In addition, as an additional embodiment, the power consumption detection device 410 and the power generation detection device 310 may be mounted for each object, but may also be mounted and detected in a group unit including several objects. For example, one power consumption detecting device 410 may measure power consumption for each building in association with a plurality of power consuming objects 401 and 402 within a preset area.

According to an embodiment of the present invention, the server 100 calculates statistics on power (energy) usage based on the information received from the power generation detecting device 310 and the power consumption detecting device 410, and calculates the statistical value. It is characterized in that it is transmitted to the blockchain network 500 or the user terminal 200.

At this time, the server 100 stores the statistics generated based on the unique identifier, power production and power consumption received from the power generation detecting device 310 and the power consumption detecting device 410 on a blockchain basis. In addition to the server 100, the information generated by the power generation object 300 and the power consumption object 400 participating in the blockchain network 500 is also distributed and stored to each object in the blockchain network 500, so that each The security and verification level of generated information can be increased.

In addition, the calculated blockchain data can be divided into several objects and stored. For example, in addition to the power generation object 300 and the power consumption object 400, it may be stored in an object that monitors it or other separate objects, and an object for blockchain recording may exist separately.

In addition, the server 100 extracts the power production or ratio of each power generation object 300 as a statistical value from the block chain previously stored in the block chain network 500 based on the authentication request of the user terminal 200, It is provided to the terminal 200.

Meanwhile, the server 100 may correspond to a general local server or may be formed to correspond to any one of cloud servers. Therefore, since the method of implementing the server 100 may vary, the scope of the present invention is not limited.

According to an embodiment of the present invention, when statistics on power are stored in the server 100, the user terminal 200 requests the server 100 for statistics on power used by the power consuming object 400 and , you will receive a reply to it. As an optional embodiment, the user terminal 200 may directly receive power information and statistics through the blockchain network 500 without going through the server 100 . That is, the user terminal 200 may request statistical value information on power from any subject within the blockchain network 500 and receive the requested information. In this case, even if statistics on power are not stored in the server 100, the user terminal 200 can check them.

That is, in other words, the power data produced at each point in time, the power data consumed at each point in time, statistics, etc. may be stored in the server whenever the information is generated, or the block stored by each subject in the blockchain network. It may also be stored (i.e. distributed storage) subsequent to the information.

At this time, the user terminal 200 may correspond to any one of a terminal belonging to the power consumption object 400, a terminal belonging to the power generation object 300, and a terminal belonging to the energy usage monitoring object. For example, a manager of a general company who wants to check where the electricity consumed by his or her company is generated or how much it uses, a manager who wants to check where the electricity produced by his power plant is supplied, or a manager who wants to check RE100, etc. The terminal to be used may correspond to the user terminal 200 .

Also, the user terminal 200 refers to a communication terminal capable of using a terminal application in a wired/wireless communication environment. Here, the user terminal 200 may be a user's portable terminal. In FIG. 1, the user terminal 200 is shown as a smart phone, which is a kind of portable terminal, but the spirit of the present invention is not limited thereto, and as described above, there is no limitation for terminals capable of loading terminal applications. can be borrowed

More specifically, user terminal 200 may include any type of handheld computing device (eg, PDA, email client, etc.), cell phone, or other type of computing or communication platform. However, the present invention is not limited thereto.

Meanwhile, the communication network serves to connect the server 100 and the user terminal 200 or between the server 100 and the power generation detecting device 310 and the power consumption detecting device 410 . That is, the communication network refers to a communication network that provides an access path so that the user terminal 200, the power generation detecting device 310, and the power consumption detecting device 410 can transmit and receive data after accessing the server 100. Communication networks include, for example, wired networks such as LANs (Local Area Networks), WANs (Wide Area Networks), MANs (Metropolitan Area Networks), and ISDNs (Integrated Service Digital Networks), wireless LANs, wireless networks such as CDMA, Bluetooth, and satellite communication. However, the scope of the present invention is not limited thereto.

2 is a diagram showing the configuration of a server according to an embodiment of the present invention.

Referring to FIG. 2 , a server 100 according to an embodiment of the present invention includes a communication module 110, a memory 120, a processor 130, and a database 140.

In detail, the communication module 110 transmits and receives signals between the server 100, the user terminal 200, the blockchain network 500, the power generation detection device 310, and the power consumption detection device 410 in conjunction with the communication network as packets. It provides the necessary communication interface to provide in data form. Furthermore, the communication module 110 receives data requests from the user terminal 200, the blockchain network 500, the power generation detection device 310 and the power consumption detection device 410, and transmits data as a response thereto. can fulfill its role.

Here, the communication module 110 may be a device including hardware and software necessary for transmitting and receiving a signal such as a control signal or a data signal with another network device through a wired or wireless connection.

The memory 120 stores a program for analyzing power consumption for each power generating object. Also, it performs a function of temporarily or permanently storing data processed by the processor 130 . Here, the memory 120 may include magnetic storage media or flash storage media, but the scope of the present invention is not limited thereto.

The processor 130, as a kind of central processing unit, controls the entire process of analyzing power consumption for each power generating object. Each step performed by the processor 130 will be described later with reference to FIG. 3 .

Here, the processor 130 may include all types of devices capable of processing data, such as a processor. Here, a 'processor' may refer to a data processing device embedded in hardware having a physically structured circuit to perform functions expressed by codes or instructions included in a program, for example. As an example of such a data processing device built into hardware, a microprocessor, a central processing unit (CPU), a processor core, a multiprocessor, an application-specific integrated (ASIC) circuit), field programmable gate array (FPGA), etc., but the scope of the present invention is not limited thereto.

The database 140 stores the unique identifier, power generation and power consumption of each device received from the power generation detecting device 310 and the power consumption detecting device 410 .

At this time, each data may be stored through a block chain technique. As an optional embodiment accordingly, the block information is stored in the block chain network 500 where block information is stored, and the block chain network 500 can use any one of a public block chain network, a consortium block chain network, and a private block chain network, if necessary. Accordingly, data is stored in another blockchain network 500. Therefore, the type of blockchain network 500 used by the present invention does not limit the scope of the present invention.

Although not shown in FIG. 2, some of the data on the unique identifier, power generation and power consumption of each device may be stored in a database (not shown) physically or conceptually separated from the database 140.

3 is an operational flowchart illustrating a process of analyzing power consumption for each power generation object according to an embodiment of the present invention.

Referring to FIG. 3 , the server 100 receives power generation and power consumption from the power generation detecting device 310 and the power consumption detecting device 410 (S310).

In addition, the server 100 additionally receives a unique identifier of each power generation detecting device 310 and power consumption detecting device 410 . This is for the power consumption detecting device 410 to separately calculate the consumption of power produced by different power generating objects 300 during a specific period.

At this time, the power generation detecting device 310 and the power consumption detecting device 410 may store the unique identifier, power generation and power consumption of each device as block information through individual communication with the blockchain network 500.

Next, the server 100 calculates statistical values of power produced or consumed by the power generating object 300 and the power consuming object 400 within a predetermined period (S320).

At this time, as described above, the server 100 stores statistics generated based on the received unique identifier, power generation and power consumption on a blockchain basis.

Specifically, the server 100 stores the power generation or power consumption measured at a first point in time by each power generation detecting device 310 or power consumption detecting device 410 together with a unique identifier as first block information. . Thereafter, the server 100 stores the amount of power generation or consumption measured at a second time point after the first time point together with a unique identifier as second block information, but adds second block information to the previously stored first block information. will be saved

For example, in the blockchain network 500, a power production detection device 310, a power consumption detection device 410, a server 100, and a user terminal 200 of each object participate, and any one power consumption detection The energy consumption information measured by the device 410 at the first time point is transmitted to objects in the blockchain network 500 and stored as a first block. Thereafter, the energy production information measured at the second time by the other power production detection device 310 is transmitted to objects in the blockchain network 500, and a second block is created in addition to the previously generated first block and then stored will be. The data generated by the server 100 in this way is transmitted to other objects in the blockchain network 500 and stored after generating the third block.

If the power generation detecting device 310 and the power consumption detecting device 410 separately transmit the unique identifier, power generation and power consumption to the blockchain network 500, the server 100 calculates from pre-stored information Only statistics will be additionally recorded on the blockchain.

That is, in an optional embodiment, data on power may be processed in various ways. For example, whether to transfer power-related data to both or only one of the server 100 and the blockchain network 500 or to add statistics generated by the server 100 to the blockchain network 500, etc. It may depend on how you implement it.

On the other hand, in the case of statistics calculated by the server 100, by date, by period (at this time, the period is generally weekly, monthly, etc., but may also be applied in the unit of hour or minute), power consumption object 400 It can be implemented in various forms, such as statistics on power production or consumption by star or by group including the power consuming object 400 .

Finally, the server 100 delivers statistics corresponding to a specific period to the user terminal 200 (S330).

At this time, statistics provide the amount and rate of power consumed by the power consuming object 400 or produced by the power producing object 300 during a specific period. For example, when wind power generation module 1, wind power generation module 2, photovoltaic power generation module 1, and fossil power generation module 1 are present among the power generation objects 300, the power consumption object 400 is removed from the wind power generation module 1 for 24 hours. It is recognized that the power consumption object 400 has received 100Wh, 200Wh from wind power generation module 2, 200Wh from solar power generation module 1, and 500Wh from fossil power generation module 1. At this time, the server 100 may simply store it as a numerical value compared to a period, or may store it as a ratio between a renewable energy production object and an external energy supply object (wind power generation module 1 is 10%, wind power generation module 2 is 20%, solar Photovoltaic module 1 is 20%, fossil power module 1 is 50%).

In addition, as another embodiment of calculating statistics, the amount of power generated by a specific energy source during the period is preferentially allocated to a specific power consuming object 400 according to a contract concluded with the power generating object 300. The percentage of consumption can be calculated. For example, when the first power consuming object 401 enters into a contract to preferentially supply the generated power to the first power generating object 301 that generates power through sunlight, the solar power is supplied within the contract period. Power generated through light is first transferred to the first power consuming object 401 . At this time, since the second power consuming object 402 is supplied with power based on the remaining power except for the first transmitted power, power consumption is calculated based on the remaining power.

Meanwhile, two different methods may be applied to a method of distributing power according to a contract between a power generating object and a power consuming object and calculating the amount of distributed power. First, a plurality of power grids connected to the power consuming object 400 are physically disconnected, and power is supplied to the power consuming object 400 by connecting the pre-allocated power production object 300 and the power consuming object 400 to each other. way to distribute it. On the other hand, although a plurality of electricity is physically supplied to the power consuming object 400, conceptually (virtually) it is assumed that a specific power producing object 300 sends power to the specific consuming object 400 and distributes it. A method for calculating the amount of electricity consumed. In the latter case, it is called VPPA (virtual power purchase agreement), and it can actually be a method used to issue a renewable energy certificate even in a power supply network where renewable energy and general energy are mixed.

Therefore, in the power distribution method applied in the present invention, the virtual power supply method is applied first to calculate the power ratio received by the power consuming object 400, but if necessary, among the two methods mentioned above One or both of the others may be applied, and newly developed technologies may be applied when other methods are developed.

As another example, the power consumption rate of the power consuming object 400 may be calculated based on the rate of production of the power producing object 300 during a specific period. For example, when the ratio of allocated to the power consuming object 400 among the electric power produced by the plurality of electric power generating objects 300 is set in advance, when calculating the production ratio of each electric power generating object 300, The power consumption ratio of each power consuming object 400 can be obtained. Even in this case, power distribution can be virtually applied and calculated.

As an additional embodiment, the server 100 further provides a service (renewable energy as a service) that informs the current generation/consumption and ratio of renewable energy to individuals or companies that need to manage renewable energy. That is, the server 100 may transmit information on the production/consumption of renewable energy and its ratio to the user terminal 200 belonging to the power consuming object 400 according to the request of the power consuming object 400. .

In yet another further embodiment, the data may be provided through an API. That is, data on the ratio of consumed power for each country of origin of the generated power (which may correspond to the type of the power generation object 300) is transmitted through the API.

Hereinafter, an operation of a smart meter for improving data accuracy according to an embodiment of the present invention will be described in detail with reference to FIG. 4 .

The smart meter can measure the amount of power produced by the power producing object 300 and also measure the amount of power consumed by the power consuming object 400 . (S410)

At this time, the smart meter continuously measures the amount of power produced or consumed by the power producing object 300 and the power consuming object 400, but may measure the amount in real time or at predetermined intervals.

When the amount of power measured in real time is greater than or equal to the preset data variation range, the smart meter may transmit power amount data to the server 100 at a first cycle shorter than the preset cycle. (S420) That is, when the range of data change suddenly increases, since it is data to be monitored with interest, data can be transmitted to the server 100 at short time intervals.

A plurality of predetermined data change widths may be defined according to the period and amount of power. For example, when the same amount of power is measured, but the measurement time is longer or shorter, or when the change in power amount increases or decreases at the same time, it can be regarded as a case where a data change width occurs. Alternatively, a case in which the amount of power and time both change can also be regarded as a case in which a range of data change occurs. However, this is an example, and may be defined as a data change range generated by various criteria.

At this time, when it is assumed that the preset cycle for determining the data variation range is the second cycle, the first cycle of step S420 may be shorter than the second cycle.

In addition, the maximum data transmission amount that can be transmitted per cycle and the maximum accumulated data transmission amount that can be accumulated and transmitted during a specific period (eg, one month) are preset. When using a smart meter, it is used by subscribing to a specific rate plan of a telecommunications company. This is because each telecommunications company stipulates the amount of data that can be communicated for a month by rate plan. Accordingly, the data transmission cycle changes to the first cycle and the second cycle, and sometimes the third cycle,?? Even if data is transmitted while having a different cycle in the form of an Nth cycle, the transmission must be performed within the range stipulated by the rate plan. Therefore, it can be automatically scheduled so as to satisfy the maximum data transmission amount per cycle and the maximum cumulative data transmission amount or less for each period, and through this, power amount data can be transmitted to the server 100 within a limited data transmission amount.

In addition, the transmission period of data may be preset in various ways according to the degree of change of the data. For example, according to the degree of data change over time or the degree of data change according to the amount of power, the smart meter collects the periodic change according to the degree of data change, and sets the data transmission cycle based on the collected data, for example, n dog, can be set in advance.

In this case, the unit of the data transmission period may be a degree of data change according to time, that is, a unit of minutes, units of seconds, or units of time.

Alternatively, a plurality of data transmission periods may be set in advance according to the degree of data change according to the amount of power.

When the amount of power measured in real time is less than or equal to the preset data variation range, the smart meter may transmit power amount data to the server 100 according to the second cycle. (S430)

These cycles may vary in several cycles depending on the range of change in the amount of power. However, the maximum time of one cycle may be fixed. For example, even if there is no change in data for 1 hour, the data must be transmitted to the server when 1 hour has passed. Referring to FIG. 6 , when the change in power amount is not large, transmission is performed in a second period, but data is not transmitted in a period exceeding 1 hour, for example, because a transmission limit period is separately designated.

Referring to FIG. 5 , a method of transmitting the measured amount of power to the server 100 when the measured amount of power is greater than or equal to a preset data change range will be described in detail.

The smart meter may transmit power amount data to the server 100 in two ways when the measured data variation range is greater than or equal to the preset data variation range. (S421)

First, it is possible to transmit power data to the server 100 by accumulating past power amount data continuously measured through the smart meter but not yet transmitted together with recent power amount data. (S422)

Alternatively, past power amount data may be divided from recent power amount data at different timings and transmitted to the server 100 . (S423)

For example, referring to FIG. 6 , since there is no large power change until 90 minutes, data may be transmitted in the second period or limit transmission period. In addition, when reflecting the previous power amount change width, it may be scheduled to transmit at the limit transmission period from the section (A) after 90 minutes. However, when the range of change in the amount of power rapidly increases from section (B), the amount of power data should be transmitted in a shorter first period instead of the second period. At this time, the smart meter may be rescheduled to transmit data as much as the first period from the end of section (A).

The smart meter may transmit data of sections (A) and (B) all at once at the point where section (B) ends. (S422)

Alternatively, data of sections (A) and (B) may be divided and transmitted at different timings. (S423)

The description of the present invention is for illustrative purposes, and those skilled in the art will understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the following claims rather than the detailed description above, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts should be construed as being included in the scope of the present invention. do.

100: server
110: communication module
120: memory
130: processor
140 DB
200: user terminal
300: power production object
310: power production sensor
400: power consumption object
410: power consumption detection device

Claims (9)

A method for improving data accuracy of a power sensing device,
(a) measuring the amount of power produced or consumed by a power producing object or a power consuming object through a power sensing device;
(b) transmitting the measured amount of power to a server in a first period when the data variation obtained by measuring the amount of power in real time through the power sensing device is greater than or equal to a preset value; and
(c) after the step (a), when the range of change of the data measured in real time is equal to or less than the predetermined value, transmitting the measured amount of power to the server in a second period longer than the first period; including,
The maximum data transmission amount per time that can be transmitted for each period and the maximum cumulative data transmission amount that can be accumulated and transmitted for a specific period according to the rate plan are preset, and the first period and the second period are the maximum data transmission amount per time and the maximum accumulated data transmission amount It is scheduled to satisfy the data transmission amount or less,
In step (b),
When it is determined that the data change width is greater than or equal to a preset value, data on the amount of power measured during a first time period from the point immediately before the amount of power is transmitted to the point of time when it is determined that the amount of power is greater than or equal to the preset value is transmitted to the server contains steps,
During the first time period, data on the amount of power in a section where the amount of power is less than or equal to the preset value and recent data on the amount of power in a section where the amount of power is greater than or equal to the preset value are distinguished and transmitted to the server at different timings
Data precision improvement method of power sensing device. According to claim 1,
The period for determining the data change width is shorter than the first period,
Data precision improvement method of power sensing device. delete delete According to claim 1,
In step (b),
Transmitting to the server together data on the amount of power in a section where the amount of power is less than or equal to the preset value during the first time period and recent data about the amount of power in a section where the amount of power is greater than or equal to the preset value.
Data precision improvement method of power sensing device. delete According to claim 1,
In step (c),
Transmitting the amount of power according to a limit transmission period longer than the second period even when there is no data change range,
Data precision improvement method of power sensing device. In the power sensing device providing data precision improvement,
a memory for storing a program related to a method for improving data accuracy of a power sensing device; and
a processor executing the program; Including,
The above method
(a) measuring the amount of power produced and consumed from the power producing object and the power consuming object through a power sensing device;
(b) transmitting the measured amount of power to a server in a first period when the data variation obtained by measuring the amount of power in real time through the power sensing device is equal to or greater than a preset amount of power;
(c) after the step (a), when the range of change of the data measured in real time is equal to or less than the predetermined value, transmitting the measured amount of power to the server in a second period longer than the first period;
including,
The maximum data transmission amount per time that can be transmitted for each period and the maximum cumulative data transmission amount that can be accumulated and transmitted for a specific period according to the rate plan are preset, and the first period and the second period are the maximum data transmission amount per time and the maximum accumulated data transmission amount It is scheduled to satisfy the data transmission amount or less,
In step (b),
When it is determined that the data change width is greater than or equal to a preset value, data on the amount of power measured during a first time period from the point immediately before the amount of power is transmitted to the point of time when it is determined that the amount of power is greater than or equal to the preset value is transmitted to the server contains steps,
During the first time period, data on the amount of power in a section where the amount of power is less than or equal to the preset value and recent data on the amount of power in a section where the amount of power is greater than or equal to the preset value are distinguished and transmitted to the server at different timings
power sensing device. A method for improving data precision of a power sensing device, performed by a server,
(a) Receiving a unique identifier, power generation or power consumption of each power sensing device from a power sensing device provided for each power generating object or each power consuming object and measuring the amount of power produced or consumed;
(b) Based on the unique identifier, power production or power consumption for each power sensing device, calculating statistical values of power produced or consumed by each power generating object or power consuming object for each preset period within a predetermined period step; and
(c) transmitting the statistics corresponding to a specific period to a user terminal;
Including,
In step (a),
(a-1) measuring the amount of power produced or consumed by a power producing object or a power consuming object through a power sensing device;
(a-2) transmitting the measured amount of power to a server in a first period when the data variation obtained by measuring the amount of power in real time through the power sensing device is greater than or equal to a predetermined value; and
(a-3) after the step (a-1), when the data change width measured in real time is equal to or less than the preset value, transmitting the measured amount of power to the server at a second period longer than the first period; including,
The maximum data transmission amount per time that can be transmitted for each period and the maximum cumulative data transmission amount that can be accumulated and transmitted for a specific period according to the rate plan are preset, and the first period and the second period are the maximum data transmission amount per time and the maximum accumulated data transmission amount It is scheduled to satisfy the data transmission amount or less,
In the step (a-2),
When it is determined through the power detection device that the range of data change is greater than or equal to a preset value, for the amount of power measured during the first time period from the point immediately before the amount of power is transmitted to the point in time when it is determined that the amount is greater than or equal to the preset value Sending data to the server;
In the first time period, data on the amount of power in a section where the amount of power is equal to or less than the preset value and recent data on the amount of power in a section where the amount of power is equal to or greater than the preset value are classified and transmitted to the server at different timings.
Data precision improvement method of power sensing device.

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