KR20170056763A - Monitoring System For Solar Power Generation Based On Web of Things - Google Patents

Abstract

The present invention relates to a web of things (WoT)-based photovoltaic monitoring system, providing various monitor information, to enhance user convenience. According to the present invention, the system comprises: a micro-inverter connected to a unit photovoltaic module; a WoT-based monitoring module including a communication interface to receive and store monitoring information including generation information and condition information generated from at least one micro-inverter, to receive and analyze web-based request information, and to output response information or control the micro-inverter corresponding to an analysis result; an operation server to transmit the request information for setting and controlling the monitoring module based on a web, to receive and store the monitoring information transmitted from the monitoring module, and to statistically process the generation information; and a user terminal transmitting the request information to the operation server to receive the monitoring information and the generation information statistically processed in the operation server.

Description

[0002] Monitoring system for solar power generation based on Web of Things [

The present invention relates to a photovoltaic power generation monitoring system for providing monitoring information including power generation information for a photovoltaic power generation system, and more particularly, Provide various monitoring information such as periodical information, comparative analysis information through statistical information, weather information and status information to the administrator or user connected to the server, and improve the user convenience by providing monitoring service through the application (app) And more particularly to a WoT-based photovoltaic power generation monitoring system.

In recent years, the social cost of power supply has soared, and it is difficult to meet the rapidly increasing demand. In view of the social problems, the government plans to supply 1 million green homes to 2020 by 2020, And subsidies are provided for the installation of new and renewable energy facilities to support the spread of renewable energy including wind power and solar power.

As a result, the demand for power generation facilities for new and renewable energy has increased, and the development of power generation facilities has been actively conducted.

However, since the photovoltaic power generation facilities to date have been designed to be suitable for large capacity, the development of photovoltaic power generation facilities for low capacity such as home use is insufficient, and in accordance with the surge of household power generation facilities in the future, There is a problem in that a technology that can be integrally controlled and operated in cooperation with each other is not secured.

Korean Registered Patent No. 1061220 (August 31, 2011)

Disclosure of Invention Technical Problem [8] The present invention has been developed in order to solve the problems of the prior art described above, and it is an object of the present invention to provide monitoring information such as periodical information, statistical analysis information, weather information, And to provide a WoT-based photovoltaic generation monitoring system capable of improving convenience.

According to an aspect of the present invention, there is provided a WoT-based photovoltaic generation monitoring system including: a micro inverter connected to a unit solar photovoltaic module; A communication interface is provided for receiving and storing monitoring information including power generation information and status information generated from at least one micro-inverter, receiving and analyzing web-based request information, outputting corresponding response information, A WoT-based monitoring module for controlling the WoT-based monitoring module; An operation server for transmitting request information for setting and controlling the monitoring module on a web-based basis, receiving monitoring information transmitted from the monitoring module, storing the monitoring information, and statisticalizing the generated information; And a user terminal that transmits the request information to the operation server and receives statistical information on progress and monitoring information processed by the operation server.

As an example, the operating server may include a basic information database storing user information, device information, and setting information by site; A receiving information database in which monitoring information received from one or more monitoring modules is stored; And statistical information in which statistical information obtained by classifying the monitoring information stored in the receiving information database into individual housing units or apartment houses according to each unit area and generating information for each individual house or apartment house by a predetermined period is stored A database.

As an example, the operation server may provide statistical information about one or more adjacent individual houses or apartment blocks selected by the user terminal to the user terminal when requesting the comparison information from the user terminal.

As one example, the microinverter includes a state diagnostic module for self-diagnosing a real-time state; And an event generation module for generating a status diagnosis event according to the information generated from the status diagnosis module and transmitting the status diagnosis event to the monitoring module.

As one example, the monitoring module transmits a status diagnostic event transmitted from the microinverter to the operation server, and the operation server includes a status information database storing a status diagnosis event of the microinverts received from the monitoring module, ; And a weather information database for receiving weather information from outside and storing the weather information, and when requesting the monitoring information of the user terminal, providing status information and weather information together with the development information of the micro-inverter to the user terminal .

As an example, the user terminal may input and transmit request information to and receive response information from the operation server using a screen implemented through a monitoring application (App), and may receive and output response information provided from the operation server .

As an example, the user terminal may output response information provided from the operation server in the form of short message service (SMS) through a mobile communication network.

As one example, the monitoring module may include an information collecting unit for collecting monitoring information of the micro-inverter; A transmitting and receiving unit for converting the binary information collected by the information collecting unit into XML data and transmitting the data to the operating server through a URL address and receiving request information of the operating server; And a database for storing monitoring information collected by the information collecting unit and request information of the operation server.

As an example, the monitoring module may include an information analyzer for analyzing request information of an XML type of an operation server received through the transceiver according to a predefined protocol and generating a corresponding control signal; And a setting controller for setting and controlling the microinverter or requesting information according to a control signal generated by the information analyzer.

As one example, the monitoring module may provide the monitoring information stored in the management server to the operating server when the request information of the operating server is received.

As an example, the monitoring module may provide monitoring information to the operating server at predetermined time intervals according to preset setting information in the micro-inverter.

As one example, the transceiver includes a Zigbee communication module including a Zigbee interface for transmitting and receiving data of a Zigbee communication scheme; And a Lan communication module including a Lan interface for transmitting and receiving data in a wired or wireless LAN communication system, and can be in data communication with the microinverter using a selected one communication module.

The WoT-based photovoltaic generation monitoring system of the present invention has an advantage in that a plurality of photovoltaic power generation facilities can be linked with each other in a photovoltaic power generation system that can be applied for home use so that efficient control and operation can be performed by unit area or local governments have.

Also, in performing mutual data communication, it is possible to provide user's convenience by providing monitoring information to a user based on a web based on standardization, and has an advantage of excellent accessibility and ease of interoperability with other technology fields such as a smart grid .

In particular, in providing monitoring information to a user, various monitoring information such as periodical information, comparison analysis information through statistical analysis, weather information and status information are provided, and a monitoring service is provided through an application (app) There is an advantage that convenience is improved.

Brief Description of the Drawings Fig. 1 is a schematic diagram for explaining a WoT-based solar power generation monitoring system according to the present invention. Fig.
2 is a block diagram illustrating a microinverter according to one embodiment of the present invention.
3 is a block diagram illustrating a monitoring module in accordance with one embodiment of the present invention.
4 is a view showing a system configuration of a apartment house according to an embodiment of the present invention;
5 is a view showing a system configuration of an individual house according to an embodiment of the present invention;
6 is a block diagram illustrating an operational server according to an embodiment of the present invention.

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

1 is a schematic view for explaining a WoT-based solar power generation monitoring system according to the present invention.

1, the WoT-based solar photovoltaic generation monitoring system (hereinafter, referred to as 'monitoring system') of the present invention is connected to at least one unit solar photovoltaic module 100, A monitoring module 300 for receiving and storing monitoring information output from at least one or more microinverters 200, and a monitoring module 300 for monitoring and monitoring the monitoring information, And an operation server 400 connected to the module 300 to transmit and receive request information and response information and to manage monitoring information of the micro inverter 200.

At this time, the operation server 400 may include a database 410 for storing all information necessary for the operation including the monitoring information.

The monitoring system of the present invention can be connected to the operation server 400 through a Web or the like. The monitoring server 400 may be a user terminal that selectively receives information or monitoring information processed by the operation server 400, (500).

The micro inverter 200 is a device for processing and controlling electrical energy generated in the solar power generation module 100 by being applied to a miniature power generation system such as a home. For example, the micro inverter 200 may be a grid- And may be a micro inverter installed for each PV module.

2 is a block diagram illustrating a microinverter according to an embodiment of the present invention.

The micro-inverter 200 generates and outputs monitoring information including power generation amount information and status information of one or more solar power generation modules 100 connected to the micro-inverter 200, so that the overall operation of the solar power generation system as well as the operation server 400 Provide various monitoring information to users or administrators requesting the situation.

2, the micro-inverter 200 may include a communication module 210, a status diagnosis module 230, an event generation module 240, and a control module 220. [

The communication module 210 transmits the output monitoring information to the monitoring module 300 or receives the control signal transmitted from the monitoring module 300.

The communication module 210 supports wired and wireless communication for connection with the monitoring module 300. The communication module 210 considers the structure of the house to which the photovoltaic power generation system is applied and the communication connection method of the monitoring module 300 And can be configured accordingly.

For example, the communication module 210 may include a serial module (UART) and a LAN port for connecting a wired line such as a dedicated line and an xDSL, and may include a serial module for wireless connection such as a CDMA modem and a TRS modem .

The state diagnosis module 230 can self-diagnose a state including the abnormality of the micro-inverter 200 in real time, and can output state information according to the self-diagnosis.

The event generation module 240 may generate a status / diagnosis event for each status information output from the status diagnosis module 230 and may be transmitted to the monitoring module 300 through the communication module 210 .

The state diagnosis module 230 and the event generation module 240 can record and generate all the information and events generated when the solar power generation module 100 connected to the micro inverter 200 itself or the connected solar power generation module 100 develops.

For example, information such as real-time generation amount, CO2 reduction amount, manual or automatic mode status, device reset time, operation time, system abnormality, frequency abnormality, system voltage abnormality, overvoltage, undervoltage, inverter overheat, standby mode, Can be generated.

At this time, the information generation and output timing in the state diagnosis module 230 and the event generation module 240 may be executed by an instruction transmitted from the outside or at a predetermined periodicity.

The control module 220 can set or control the micro inverter 200 according to a control signal transmitted from the operation server 400 or the user terminal 500 through the communication module 210 .

3 is a block diagram illustrating a monitoring module in accordance with one embodiment of the present invention.

The monitoring module 300 is equipped with a Web-based communication interface and can receive and store monitoring information including power generation information and status information generated from the micro inverter 200 as described above.

The monitoring module 300 receives and analyzes web-based request information from the operation server 400, and outputs response information corresponding to the received request information, or controls the micro inverter 200.

3, the monitoring module 300 includes an information collecting unit 310 for collecting and collecting monitoring information of the micro-inverter 300, response information including collected monitoring information, A transmission / reception unit 320 for receiving request information from the control unit 400, and a database 330 for storing the monitoring information.

The information collecting unit 310 may collect the monitoring information of the micro-inverter 200. At this time, the information collection of the information collection unit 310 requests information from the micro inverter 200 according to an instruction transmitted from outside or according to a predetermined period, and the micro inverter 200 transmits the information to the information collection unit 310). ≪ / RTI >

As described above, the monitoring information collected from the information collecting unit 310 may include the power generation amount information of the micro inverter 200 and state information including various event information.

The transceiver 320 converts the binary information collected by the information collecting unit 310 into XML data and transmits the XML data to the operation server 400 as a URL address. Information can be received.

That is, the monitoring module 300 receives data in a binary form from the micro-inverter 200. In order to convert the binary data into web-based data so that the data can be recognized by the operation server 400 or the like, The transmission / reception unit 320 performs data processing on the monitoring information.

At this time, the data conversion performed by the transceiver 320 may be performed based on the OPEN API platform including XML data, and may be transmitted as a URL address. The URL address may include an IP address unique to the operation server 400 .

As shown in FIG. 3, it is natural that a gateway 600 may be provided between the monitoring module 300 and the operation server 400 so that a heterogeneous communication network such as a wired or wireless communication network can be interconnected.

The database 330 may store monitoring information collected by the information collecting unit 310 as well as request information of the operation server 400.

According to an embodiment of the present invention, the monitoring module 300 may further include an information analysis unit 350 and a setting control unit 340.

The information analyzer 350 interprets the request information of the XML format of the operation server 400 received through the transceiver 320 according to a predefined protocol and generates a control signal corresponding thereto.

The request information may request monitoring information or may be setting information for controlling the micro inverter 200. The control signal generated by the information analyzer 350 may be received by the micro inverter 200 And may include conditions associated with the data packet and the requested information.

The setting controller 340 can set and control the micro inverter 200 or request information according to a control signal generated by the information analyzer 350.

Here, the monitoring module 300 may provide the monitoring information to the operation server 400 at the time when the request information of the operation server 400 is received.

In addition, the monitoring module 300 may provide monitoring information to the operation server 400 at predetermined time intervals according to the setting information set in the micro-inverter 200. That is, the micro-inverter 200 transmits the monitoring information to the monitoring module 300 at predetermined intervals according to the setting information set by the operation server 400 so that the micro-inverter 200 can be provided to the operating server 400 .

FIG. 4 is a diagram showing a system configuration of a apartment house according to an embodiment of the present invention, and FIG. 5 is a diagram illustrating a system configuration of an individual house according to an embodiment of the present invention.

Meanwhile, the monitoring module 300 may transmit / receive data to / from the micro inverter 200 including the transmission / reception unit 320.

The monitoring module 300 may be provided with a communication interface suitable for the installation location of the micro-inverter 200 and the communication connection method.

For example, as shown in FIG. 4, in the case of the apartment house, the monitoring information according to the solar power generation of each household can be transmitted to and managed by the management office performing the role of the unit zone control center. And may be installed in the management office.

In this case, a WPAN (Wireless Personal Area Network) such as Zigbee can be applied to the communication method, and the transceiver 320 is a Zigbee communication module 321 including a Zigbee interface for transmitting / receiving data of the Zigbee communication scheme Can be implemented.

The user terminal 500 may be a device fixedly installed in each household and receiving monitoring information from the operation server 400, or may be a mobile device of each household member.

As shown in FIG. 5, in the case of a unit housing, the monitoring information collected in each household can be integratedly managed in a wide area control center where one monitoring module 300 is installed. Therefore, each household can be a LAN (Local Area Network) The WTRU 320 may be implemented as a Lan communication module 322 including a Lan interface for transmitting / receiving data in a wired or wireless LAN communication system.

Also in this case, the user terminal 500 may be a device fixedly installed in each household and receiving monitoring information from the operation server 400, or may be a mobile device of each household member.

In this manner, the transceiver 320 selects a communication mode in consideration of the situation of a house where the solar power generation system is installed, and performs data communication with the micro inverter 200 using one communication module .

6 is a block diagram illustrating an operational server according to an embodiment of the present invention.

On the other hand, the operation server 400 transmits request information for setting and controlling the monitoring module 300 on a web-based basis, receives monitoring information transmitted from the monitoring module 300, and monitors and manages the received monitoring information .

 The operating server 400 can receive monitoring information on the power generation status of a house in which the solar power generation system is installed from at least one or more monitoring modules 300 and can classify and manage data for each unit area or each household .

For example, the operation server 400 can identify and classify each of the monitoring modules 300 through the IP address included in the response information of the URL address received through the monitoring module 300.

The monitoring module 300 can identify and classify the microinverters 200 through the identification information included in the monitoring information received from one or more microinverters 200 connected thereto. At this time, the identification information may correspond to an IP address or a unique identification code according to the structure and communication method of the house such as the apartment house using Zigbee communication or the individual house using the WiFi.

Accordingly, the operation server 400 can identify and classify one or more microinverters 200 connected to each of the monitoring modules 300 as well as the plurality of monitoring modules 300, thereby performing efficient management.

For example, the operation server 400 may receive the monitoring information transmitted from the monitoring module 300, store the received monitoring information, and provide statistical data on the generated information, The statistical data provided from the server 400 can be utilized as comparative analysis information.

Specifically, as described above, the operation server 400 may include a database 410 to store all information necessary for the operation including the monitoring information. The database may include basic information A database 411, a reception information database 412, and a statistical information database 413.

The basic information database 411 may store site-specific user information using the monitoring system of the present invention, device information including the photovoltaic power generation module 100, the microinverter 200, and the setting information of the corresponding device .

At this time, the user may include a user who installs an actual photovoltaic power generation system and requests generation information and the like, as well as an operator for operating and managing the system.

The reception information database 412 may store monitoring information received from one or more monitoring modules 200.

The statistical information database 413 classifies the monitoring information stored in the reception information database 412 into individual housing units or apartment houses according to each unit area and stores the generated information for each individual house or apartment house in a predetermined period The statistical information can be stored.

That is, the operation server 400 accumulates the monitoring information stored in the reception information database 412 and provides statistical information on the information of the corresponding period when the user requests the information on the period. The period may consist of weekly, monthly, quarterly, or yearly units.

In addition, when requesting the comparison information from the user terminal 500, the operation server 400 transmits statistical information about one or more adjacent individual houses or apartments selected by the user terminal 500 to the user terminal 500 And the user terminal 500 provided with the same can compare the power generation status and the like by checking statistical information about adjacent individual houses or apartment houses for the same period.

The operating server 400 may be provided with an input / output interface for inputting request information and outputting response information. For example, although not shown in the drawing, the operation server 400 may include a manager PC capable of monitoring received monitoring information using a web browser implemented on a graphical user interface (GUI) basis, The input and information output of commands can be easily performed using a PC.

Meanwhile, the user terminal 500 can request authentication to the operation server 400 through the web and receive management information and monitoring information from the operation server 400.

The user terminal 500 is a terminal that can be connected to the operation server 400 and can receive information on the web, for example, a smart phone, a tablet PC And the like.

In addition, the user terminal 500 generates request information for interfacing with the operation server 400 so that the user terminal 500 can perform setup and control of the solar power generation system installed in the house, and transmits the request information to the operation server 400 It is possible to set and control devices such as the microinverter 200 of the furniture.

The operation server 400 may further include an information providing unit 430 and an authentication request unit 440 as shown in FIG.

First, the authentication request unit 400 sends an approval or a denial command to the authentication requested by the connected user terminal 500. The authentication method for the user terminal 500 may be variously carried out through known technologies, and thus a detailed description thereof will be omitted.

The information providing unit 430 analyzes the request information requested by the user terminal 500 and provides the information corresponding to the request information to the user terminal 500. [ Information and provides it to the user terminal 500.

Meanwhile, the operation server 400 according to an embodiment of the present invention can receive weather information from outside. For example, although not shown in the figure, the operating server 400 can receive weather information from the weather service server in real time in association with a weather service server.

The operation server 400 may further include a weather information database 420 in which the received weather information is stored. The weather information database 420 may include weather information as well as forecast information for each area.

Accordingly, when requesting the monitoring information of the user terminal 500, the operation server 400 can provide monitoring information including weather information to the user terminal 500, It is possible to check the power generation amount considering the weather condition of a specific date as well as statistical information and comparison analysis information of the photovoltaic power generation system.

In addition, the operation server 400 can receive the status diagnosis event transmitted from the micro inverter 200 through the monitoring module 300 as described above, And a status information database 450 in which the status information is stored.

Therefore, the operation server 400 can provide status information of the micro-inverter 200 to the user terminal 500 together with the weather information when the monitoring information of the user terminal 500 is requested.

Here, the user terminal 500 can input and transmit request information to the operation server 400 using a screen implemented through a monitoring application (App). The response information provided from the operation server 400 Monitoring information including the above-described status diagnosis information, comparison information, weather information, and the like can be received and output.

When an event such as a mechanical failure of the micro inverter 200, a failure of the power generation state, or an adverse weather in a weather condition occurs at the time of occurrence of a specific event at the operation server 400, the monitoring app (App) And may be displayed on the user terminal 500 through a pop-up window.

Also, the user terminal 500 may output the response information provided from the operation server 400 as a short message service (SMS) type message through the mobile communication network.

A notification service through such an app or an SMS (short message service) can be variously implemented by a known technology, and a concrete method for implementing the service will be omitted.

As described above, according to the system of the present invention, a plurality of photovoltaic power generation facilities can be interconnected in a photovoltaic power generation system that can be applied to a home, so that efficient control and operation can be performed for each unit area or each municipality in future. It is possible to improve the accessibility and ease of interworking with other technology fields such as Smart Grid by providing users with monitoring information by using web based on standardization.

In providing the monitoring information to the user, various monitoring information such as periodical information, comparison analysis information through statistical analysis, weather information and status information are provided and a monitoring service is provided through the application (App) The convenience can be improved.

While the present invention has been described with reference to the particular embodiments and drawings, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Various modifications and changes may be made.

100: Solar power generation module 200: Micro inverter
300: Monitoring module 400: Operation server
500: user terminal 600: gateway

Claims (12)

A micro inverter connected to the unit photovoltaic module;
A communication interface is provided for receiving and storing monitoring information including power generation information and status information generated from at least one micro-inverter, receiving and analyzing web-based request information, outputting corresponding response information, A WoT-based monitoring module for controlling the WoT-based monitoring module;
An operation server for transmitting request information for setting and controlling the monitoring module on a web-based basis, receiving monitoring information transmitted from the monitoring module, storing the monitoring information, and statisticalizing the generated information; And
And a user terminal receiving the statistical power generation information and the monitoring information processed by the operation server by transmitting the request information to the operation server.
The system according to claim 1,
A basic information database in which user information, site information, and setting information are stored;
A receiving information database in which monitoring information received from one or more monitoring modules is stored; And
A statistical information database in which statistical information obtained by classifying monitoring information stored in the reception information database into individual housing units or apartment houses according to each unit area, Wherein the WoT-based photovoltaic generation monitoring system comprises:
3. The method of claim 2,
The operating server,
And provides the user terminal with statistical information on one or more adjacent individual houses or apartments selected by the user terminal when the comparison information is requested from the user terminal.
The method of claim 3,
The micro-
A status diagnosis module for self-diagnosing real-time status; And
And an event generation module for generating a status diagnosis event according to the information generated from the status diagnosis module and transmitting the status diagnosis event to the monitoring module.
5. The method of claim 4,
The monitoring module includes:
Transmitting a status diagnostic event transmitted from the micro-inverter to the operation server,
The operating server,
A state information database storing a state diagnostic event of the micro-inverters received from the monitoring module; And
And a weather information database for receiving weather information from outside and storing the weather information,
And provides the user terminal with status diagnosis information and weather information together with power generation information of the micro inverter when the monitoring information of the user terminal is requested.
6. The method of claim 5,
The user terminal comprises:
The WoT-based photovoltaic power generation monitoring system according to claim 1, wherein the WoT-based photovoltaic power generation monitoring system is configured to input and transmit request information to and from the operation server using a screen implemented through a monitoring app (App) .
6. The method of claim 5,
The user terminal comprises:
And outputs the response information provided from the operation server in the form of a short message service (SMS) through a mobile communication network.
The method according to claim 1,
The monitoring module includes:
An information collecting unit collecting monitoring information of the micro-inverter;
A transmitting and receiving unit for converting the binary information collected by the information collecting unit into XML data and transmitting the data to the operating server through a URL address and receiving request information of the operating server; And
And a database for storing monitoring information collected by the information collecting unit and request information of the operation server.
9. The method of claim 8,
The monitoring module includes:
An information analyzer for analyzing request information of an XML type of an operation server received through the transceiver according to a predefined protocol and generating a corresponding control signal; And
And a setting controller for setting and controlling the microinverter or requesting information according to a control signal generated by the information analyzer.
10. The method of claim 9,
The monitoring module includes:
And provides the stored monitoring information to the operation server when the request information of the operation server is received.
10. The method of claim 9,
The monitoring module includes:
And provides monitoring information to the operating server at predetermined time intervals according to preset setting information in the micro-inverter.
The apparatus of claim 8, wherein the transmitting /
A Zigbee communication module including a Zigbee interface for transmitting and receiving data of a Zigbee communication scheme; And
And a Lan communication module including a Lan interface for transmitting and receiving data of a wired or wireless Lan communication system,
And the data communication is performed with the micro inverter using one selected communication module.

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