KR101327474B1 - Solar generating apparatus with systems for remote monitoring - Google Patents

Abstract

Disclosed is a sunlight generation device with a remote monitoring system. The remote monitoring system comprises a sunlight cell array, a sensing unit, a communication unit, a server, and a terminal. The sunlight cell array comprises a plurality of solar battery cells which coverts sunlight energy into electric energy. Each sensing unit is located in each solar battery cell and senses the output voltage of each solar battery cell. The communication unit receives the output voltage and wirelessly transmits the same to a first communication network. The server wirelessly transmits the result of relative evaluation to a second communication network by performing the relative evaluation of each solar battery cell based on the output voltage received through the first communication network according to the generation of a predetermined event. The terminal receives the result of the relative evaluation through the second communication network. The relative evaluation is used to determine faults of a specific cell by considering the output voltage of a cell group including the specific cell and other cells which are located around the specific cell. [Reference numerals] (200) First communication network;(300) Server;(400) Second communication network;(500) Terminal device

Description

Solar Generating Apparatus With systems for remote monitoring

The present invention relates to a photovoltaic device having a remote monitoring system, and more particularly, to a photovoltaic device having a remote monitoring system capable of performing remote monitoring using a terminal device of a remote location.

Recently, there is a problem of excessive expenses due to the import of existing energy sources such as petroleum, coal, and natural gas, and the possibility of depletion of resources for such energy sources. Due to the extent, there is a growing interest in alternative energy that can replace the existing energy sources described above.

Alternative energy refers to energy that can be produced using solar energy, biomass, wind power, hydropower, fuel cells, marine energy, geothermal heat, hydrogen, etc., rather than existing energy sources such as petroleum, coal, and nuclear power.

Among them, the field of power generation using solar energy (ie, photovoltaic power generation) has been actively developed, and is currently entering the commercialization stage, and is expecting as a future clean energy source.

Solar power generation is a way of converting light energy from the sun into electrical energy. The key to solar power generation lies in solar cells with a PN junction structure. When a photon is absorbed into a solar cell from the outside, a pair of electrons and holes (eh pair) is generated inside the solar cell by the energy of the photon do. At this time, the generated electron-hole pairs move from the electric field generated at the PN junction to the N-type semiconductor, and the holes move to the P-type semiconductor, and are collected from the electrodes on the respective surfaces. The charge collected at each electrode is a source of energy to operate the load as a current flowing through the load when a load is connected to an external circuit.

Here, the technology of the photovoltaic device that is the background of the present invention is Republic of Korea Patent Publication No. 10-0455250 (2004.10.22), 10-1028159 (2011,04,01) and 10-1049786 (2011, 07,11). That is, the photovoltaic device is configured to further include a solar cell module, a storage battery, and a power conversion inverter in a power generation method using a solar cell that generates electricity, such as photovoltaic power generation.

Although a system for remotely diagnosing and monitoring a facility used for photovoltaic power generation has been proposed, it is not possible to intuitively diagnose or monitor a problem occurring in the facility, and to efficiently manage a facility used for photovoltaic power generation. There was discomfort.

An object of the present invention is to provide a photovoltaic device having a remote monitoring system for performing relative evaluation of cells included in a photovoltaic cell array.

In a photovoltaic device having a remote monitoring system according to an embodiment of the present invention, a photovoltaic cell array in which a plurality of solar cells for converting solar energy into electrical energy are arranged in rows and columns, and each of the solar cells A sensing unit configured to sense an output voltage of each of the solar cells, a communication unit configured to receive the sensed output voltage and wirelessly transmit it to a first communication network, an output voltage received through the first communication network according to a predetermined event occurrence A server configured to perform relative evaluation of the solar cell based on the wireless transmission of the result of the relative evaluation to the second communication network, and a terminal device to receive a result of the relative evaluation through the second communication network, The relative evaluation takes into account the output voltage of a cell group comprising a particular cell and other cells surrounding the particular cell. May be to determine whether the failure of the cell.

Based on the output voltage of the specific cell, when the output voltage of the other cells is out of a preset range, it may be determined that the specific cell has failed.

The other cells may include at least one of a cell disposed adjacent to the specific cell and a cell spaced apart from the specific cell.

The server, when the user command requesting the sensing of the output voltage is received from the terminal device, the output voltage of the specific cell is less than a predetermined threshold value, or a predetermined time interval elapses, the predetermined event Can be determined to have occurred.

The server may determine that the preset event occurs when any one of temperature, humidity, precipitation, wind speed, snowfall, and air pressure is out of an allowable range.

The sensing unit senses at least one of temperature, humidity, precipitation, wind speed, snow amount, and air pressure, and the server may receive at least one of the sensed temperature, humidity, precipitation, wind speed, snow amount, and air pressure. Can be.

The allowable range may be received and stored in the server through the second communication network after being input from the terminal device.

The cell group may include a first cell group including other cells arranged in the same column as the specific cell, a second cell group including other cells arranged in the same row as the specific cell, and arranged diagonally with the specific cell. A third cell group including other cells, a fourth cell group including other cells disposed above, below, left, and right of the specific cell, and a fifth cell group including other cells arranged in the same row and column as the specific cell It may be any one of a sixth cell group including other cells surrounding the specific cell, and a seventh cell group including other cells having an output voltage equal to the output voltage of the specific cell.

The photovoltaic cell array includes a first cell array and a plurality of remaining cell arrays, and the cell group has the same coordinate value as the specific cell in each of the specific cell and the remaining cell arrays of the first cell array. Cells may be included.

The server may receive and store coordinate values of cells included in each of the plurality of solar cell arrays.

In a photovoltaic device having a remote monitoring system according to another embodiment of the present invention, a photovoltaic cell array in which a plurality of solar cells for converting solar energy into electrical energy are arranged in rows and columns, each of the solar cells A sensing unit configured to sense an output voltage of each of the solar cells, a communication unit receiving the sensed output voltage and wirelessly transmitting it to a first communication network, and an output voltage of each of the solar cells received through the first communication network And a server for wirelessly transmitting the stored output voltage to the second communication network, and a terminal device for receiving and displaying the output voltage through the second communication network, wherein the server checks an output voltage of a specific cell. When the user command requesting the received from the terminal device via the second communication network, the specific cell and the special feature Can be retransmitted in consideration of the output voltage of the cell group including the cells of the other surrounding cells is determined whether failure of the particular cell, and the result of the determination to the terminal via the second communication network.

Based on the output voltage of the specific cell, when the output voltage of the other cells is out of a preset range, it may be determined that the specific cell has failed.

The other cells may include at least one of a cell disposed adjacent to the specific cell and a cell spaced apart from the specific cell.

The cell group may include a first cell group including other cells arranged in the same column as the specific cell, a second cell group including other cells arranged in the same row as the specific cell, and arranged diagonally with the specific cell. A third cell group including other cells, a fourth cell group including other cells disposed above, below, left, and right of the specific cell, and a fifth cell group including other cells arranged in the same row and column as the specific cell It may be any one of a sixth cell group including other cells surrounding the specific cell, and a seventh cell group including other cells having an output voltage equal to the output voltage of the specific cell.

The photovoltaic cell array includes a first cell array and a plurality of remaining cell arrays, and the cell group has the same coordinate value as the specific cell in each of the specific cell and the remaining cell arrays of the first cell array. Cells may be included.

According to various embodiments of the present disclosure, a photovoltaic device having a remote monitoring system may perform a relative evaluation of specific cells included in a photovoltaic cell array in a server, thereby conveniently determining whether a solar cell is damaged in a terminal device at a remote location. And quick monitoring.

1 is a view showing a photovoltaic device equipped with a remote monitoring system according to an embodiment of the present invention.
2 is a view showing in more detail the photovoltaic device 1000 is equipped with a remote monitoring system of FIG.
3 is a view showing a monitoring method of a photovoltaic device equipped with a remote monitoring system according to an embodiment of the present invention.
4 and 5 illustrate an example of information transmitted from a solar cell array to a server.
6 and 7 illustrate another example of information transmitted from the solar cell array to the server.
8 and 9 illustrate examples of electric energy values transmitted from a solar cell array to a server.

Hereinafter, various embodiments of the present disclosure will be described with reference to the accompanying drawings.

1 is a view showing a photovoltaic device equipped with a remote monitoring system according to an embodiment of the present invention.

Referring to FIG. 1, a photovoltaic device 1000 equipped with a remote monitoring system includes a solar cell array 100, a first communication network 200, a server 300, a second communication network 400, and a terminal device. 500.

The solar cell array 100 includes a plurality of solar cells 10a-1, 10a-2,..., 10d-10. Each of the plurality of solar cells 10a-1, 10a-2, ..., 10d-10 converts solar energy into electrical energy.

Each of the plurality of solar cells 10a-1, 10a-2,..., 10d-10 includes a sensor (not shown). The sensor (not shown) senses electrical energy produced by each of the plurality of solar cells 10a-1, 10a-2, ..., 10d-10. In addition, the sensor (not shown) is a humidity sensor for checking the humidity of each of the solar cells (10a-1, 10a-2, ..., 10d-10), temperature sensor for checking the temperature, precipitation, wind speed, The sensor may further include various sensors capable of sensing snowfall, air pressure, and the like.

The photovoltaic device 1000 equipped with a remote monitoring system may further include a communication unit 150. The communication unit 150 may be provided in plurality so as to correspond to each of the plurality of solar cells 10a-1, 10a-2,..., 10d-10. The communication unit 150 receives various information such as electrical energy, temperature, and humidity from each of the plurality of solar cells 10a-1, 10a-2,..., 10d-10 through the sensor, and receives the received information. To the first communication network 200. The communication unit 150 may communicate with the first communication network 200 by wireless or wired.

The sensor (not shown) and the communication unit 150 may be implemented in a chip form, or may be implemented in a single chip form in which a sensing function and a communication function are integrated.

On the other hand, although not shown, the photovoltaic device 1000 equipped with a remote monitoring system is a power supply unit (not shown) for controlling and managing the electrical energy generated in each cell of the solar cell array 100, the power supply unit ( Power is supplied by a charging unit (not shown) and a power supply unit (not shown) that are absorbed through (not shown) to charge the generated electrical energy, and determine whether all or a part of the solar cell array 100 has failed. And a control unit (not shown) for performing an overall control operation, an emergency power supply unit (not shown) for supplying emergency power when determined to be a failure.

As an example, when the electrical energy is not produced in all or part of the solar cell array 100 for a predetermined time, or when the electrical energy below the threshold is produced, when the temperature or humidity is abnormal, the solar cell array 100 All or part of can be determined to be a malfunction.

On the other hand, such a configuration may be disposed remotely from the solar cell array 100, it is preferable to be disposed in a place adjacent to the solar cell array 100. Alternatively, the controller (not shown) may be disposed in the server 300 to be described later.

Although the solar cell array 100 is illustrated as one for convenience of description, a plurality of solar cell arrays 100 may exist. In this case, the plurality of solar cell arrays may be different in kind and form from each other.

The first communication network 200 receives information from each of the plurality of solar cells 10a-1, 10a-2,..., And 10d-10, and transmits the information to the server 300. The first communication network 200 may be embodied in the Internet or an intranet.

The server 300 transmits the information received from the first communication network 200 to the second communication network 400. The server 300 stores the information received from the first communication network 200. The server 300 converts the information received from the first communication network 200 to suit the message display in the terminal device 500 and transmits the information to the second communication network 400. The server 300 is installed with a program for monitoring the solar cell array 100, and monitors the solar cell array 100.

The server 300 wirelessly transmits the result of the relative evaluation to the second communication network 400 by performing a relative evaluation of the solar cell based on the output voltage received through the first communication network 200 according to a preset event occurrence. . The result of the relative evaluation may be a message format or a format converted by the terminal device 500 to be suitable for displaying a message.

The preset event may include an event in which a user command requesting sensing of an output voltage is received from the terminal device 500, an event in which an output voltage of a specific cell is less than a predetermined threshold value, an event in which a preset time interval elapses, And a value of any one of temperature, humidity, precipitation, wind speed, snowfall, and barometric pressure sensed by the sensing unit (not shown) may be any one of an event outside the allowable range.

The relative evaluation may be to determine whether a specific cell has failed in consideration of an output voltage of a cell group including a specific cell and other cells surrounding the specific cell.

Other cells surrounding a specific cell may include at least one cell disposed adjacent to a specific cell, at least one cell spaced apart from the specific cell, and cells adjacent and spaced apart from the specific cell.

The server 300 may determine that a specific cell has failed when an output voltage of other cells is out of a preset range based on the output voltage of the specific cell. As an example, if the output voltage of a specific cell is 0.1 [V] and the output voltages of other peripheral cells are in the range of 1.5 [V] to 2 [V], the server 300 may determine that the specific cell has failed. . The preset range may be input from the terminal device 500 and then received and stored in the server 400 through the second communication network 400.

The server 300 receives at least one of sensed temperature, humidity, precipitation, wind speed, snowfall, and barometric pressure. The server 300 may determine that a predetermined event occurs when the above-described received value is out of an allowable range. The allowable range may be received by the server 400 through the second communication network 400 after being input from the terminal device 500 and stored.

A cell group includes a first cell group including other cells arranged in the same column as a specific cell, a second cell group including other cells arranged in the same row as a specific cell, and other cells arranged diagonally with a specific cell. A third cell group including, a fourth cell group including other cells disposed above, below, left, and right of a specific cell, a fifth cell group including other cells arranged in the same row and column as the specific cell, and surrounding the specific cell It may be one of a sixth cell group including other cells, and a seventh cell group including other cells having an output voltage equal to the output voltage of a specific cell.

Meanwhile, when there are a plurality of solar cell arrays, the cell group may include specific cells of the first cell array and cells having the same coordinate value as the specific cells in each of the at least one remaining cell array. To this end, the server 300 may receive and store coordinate values of cells included in each of the plurality of solar cell arrays.

Alternatively, when the server 400 receives a user command requesting the output voltage confirmation of the specific cell from the terminal device 500 through the second communication network 400, the server 400 includes a cell group and other cells surrounding the specific cell. The failure of a specific cell may be determined in consideration of the output voltage of the second cell, and the result of the determination may be retransmitted to the terminal device 500 through the second communication network 400. In this case, since the remaining operations of the server 400 are the same, a description of overlapping portions will be omitted.

The server 300 may be a single configuration, but preferably includes a plurality of servers.

When the above-described control unit (not shown) is disposed in the server 300 to determine whether a failure occurs, the server 300 determines whether the failure occurs based on the electrical energy generated in each cell of the solar cell array 100. If it is determined that the failure is determined, the control signal for controlling the emergency power supply to the cell determined to be a failure can be transmitted to the emergency power supply (not shown).

The second communication network 400 transmits the information received from the server 300 to the terminal device 500. The second communication network 400 may be embodied in the Internet or an intranet.

Although the first communication network 200 and the second communication network 400 are preferably the Internet, the first communication network 200 and the first communication network 200 may be implemented according to the design of the photovoltaic device 100 equipped with a remote monitoring system. Only one of the second communication network 400 may be implemented as an interlannet.

For convenience of description, the display is divided into the first communication network 200 and the second communication network 400, but a single communication network may be used together, of course.

The terminal device 500 receives information from the second communication network 400. The terminal device 500 may be disposed at a remote place far from the solar cell array 100. The terminal device 500 may include a mobile device such as a smartphone, a tablet, a PDA, a notebook computer, an MP3 player, and a device such as a desktop PC.

In addition, the terminal device 500 receives a relative evaluation result of the solar cell through the second communication network 400.

On the other hand, the number and shape of the plurality of solar cells described in Figure 1 is not limited to this example only. The information may be represented by a signal or data, and is information for monitoring in the terminal device 500. The failure may be expressed as a failure or a failure, and the information monitored by the server 300 includes not only information such as the above-described failure, but also general information irrelevant to the occurrence of the failure.

2 is a view showing in more detail the photovoltaic device 1000 is equipped with a remote monitoring system of FIG.

2, a sensor (not shown) is provided in each cell of the solar cell array 100 to sense information such as electric energy.

In FIG. 1, each communication unit 150 is provided in each cell, and is configured to directly transmit information sensed to the second communication network 200. In FIG. 2, a communication chip provided in each cell is sensed by the communication unit 150. By transmitting the information, the sensing information combined in the communication unit 150 is transmitted to the second communication network 200. On the other hand, since a communication function is built in a sensor (not shown) provided for each cell, information sensed by the communication unit 150 may be transmitted from each sensor (not shown).

The server 300 includes a middleware unit 310, a database server 320, a message transmission server 330, and a web server 340.

The middleware unit 310 is different from the communication method between the communication unit 150 and the server 300, and interprets the information transmitted from the communication unit 150.

The database server 320 stores the information interpreted by the middleware unit 310.

The message transmission server 330 converts the information stored in the database server 320 into a form suitable for displaying a message in the terminal device 500. The message transmission server 300 transmits the converted information to the second communication network 400. The message transmission server 330 may convert the stored information into an SMS message or MMS message format for easy confirmation by the user in the terminal device 500.

Specifically, when the electrical energy (eg, voltage value) in a specific cell of the solar cell array 100 is less than or equal to a predetermined threshold for a predetermined time, if information “1” is received by the server 300, The information "1" is stored in the server 300 to indicate a failure of a specific cell. Therefore, the server 300 may transmit the message “It is a specific cell failure” to the terminal device 500. Of course, the server 300 may not only transmit the message to the terminal device 500, but may also transmit various information such as a location of a specific cell, an event occurrence time, a date, and the like to the terminal device 500.

The web server 340 is installed with a program for monitoring the solar cell array 100 to monitor the solar cell array 100. The web server 340 transmits the information stored in the database server 320 to the second communication network 400. The web server 340 may control overall the components 310, 320, 330 in the server 300. Therefore, the web server 340 determines whether a failure or failure of each cell occurs based on the information stored in the database 320. In addition, when it is determined that each cell is a failure, the web server 340 generates a message corresponding to the failure. In this case, the web server 340 may control the message transmission server 330 to transmit the generated message.

Meanwhile, when the notification service is registered to the mobile device, which is the terminal device 500, the push notification for transmitting the notification service to the terminal device 500 will be described in more detail.

When the terminal device 500 requests the URL of a channel to communicate with the message transmission server 330, the message transmission server 330 transmits a channel URL to communicate with the terminal device 500. When the terminal device 500 transmits a channel URL to the web server 340, the URL of the channel is stored in the web server 340. Thereafter, when the web server 340 receives an event such as a failure occurrence from the solar cell array 100, the web server 340 transmits the event to the message transmission server 330, and the message transmission server 330. After generating a message corresponding to the event in the can transmit the corresponding message to the terminal device (500).

3 is a view showing a monitoring method of a photovoltaic device equipped with a remote monitoring system according to an embodiment of the present invention.

Referring to FIG. 3, the monitoring method periodically monitors a solar cell in the server 300 (S410). Information from the solar cell array 100 may be periodically or aperiodically received by the server 300 through the first communication network 200, and the server 300 may monitor the solar cell through the received information. Can be. In this case, the received information may receive not only information such as a failure but also general information not related to the failure.

The server 300 determines whether a failure occurs based on the received information (S420). if,

If it is determined that a failure occurs in the server 300 (S420-Y), the received information is changed into a format necessary for message transmission, and then the changed information is transmitted to the terminal device 500 (S430). Here, the changed information may include a message and other information.

If it is determined that the failure does not occur in the server 300 (S420-N), the monitoring operation is continued (S410).

When the terminal device 500 receives the changed information through the second communication network 400, the terminal device 500 performs authentication. In detail, the terminal device 500 checks whether a message included in the changed information can be displayed on the terminal device 500 (S440).

If the changed information is authenticated in the terminal device 500, the message content included in the changed information is displayed (S450).

With reference to Table 1 below, the operation between the server 300 and the terminal device 500 of the present monitoring method will be described in more detail.

Login information Saved login information (automatic login information) Problem Status Notification Message Device type (PC, IOS, Android, other) Connection ID Problem brief message Access IP (External & Internal IP) Authentication token Problem Notification Time (Occurrence Time) Connection ID Issue connection point (link, message ID) Connection PW

The present monitoring method applies various push notification methods to the terminal device 500 in order to quickly check the information transmitted from the server 300 in the terminal device 500. As an example, if the terminal device 500 is an Apple mobile device, Apple Push Notification Service (APNS) is applied. If the terminal device 500 is an Android-based mobile device, Google Cloud to Device Message (C2DM) or background processing is performed. Can be applied.

The terminal device 500 is installed with an application (ie, an app) for performing the above-described monitoring method. When an application for performing the present monitoring method is installed in the terminal device 500 by the user, login information such as an access ID, an access password, an access IP, and a device type is registered in the server 300.

Accordingly, the message from the server 300 may be automatically pushed to the terminal device 500.

However, if the authentication content is not stored in advance in the terminal device 500, the message according to the push notification method may not be displayed in the terminal device 500.

Therefore, when the application for performing the above-described monitoring method is installed in the terminal device 500, the authentication may be performed in advance in a manner in which a certificate or an authentication key is installed in the terminal device 500. As a result, each time a push notification message is received by the terminal device 500, a separate authentication procedure may not be performed each time.

On the other hand, when the application for performing the above-described monitoring method is installed in the terminal device 500, if authentication is not performed in advance in the terminal device 500, each time a push notification message is received separate authentication each time Procedures may be performed. In this case, authentication may be performed using a token method.

As described above, the terminal device 500 in the present monitoring method may be a mobile device, and thus, the monitoring information may be directly transmitted from the server 300 to the mobile device, thereby conveniently and quickly determining whether the solar cell is damaged. Can be monitored.

Existing monitoring method can check failure or failure only on fixed computer such as desktop, and there is a problem that administrator should always wait in front of his computer for monitoring. However, according to this monitoring method, information related to failure or failure can be checked. Sending to the administrator's mobile device, there is an advantage that the user can quickly check the failure or failure through a push notification message that does not require a separate login.

Meanwhile, the terminal device 500 in the present monitoring method may be a fixed device such as a desktop, and in this case, the server 300 may sequentially transmit a message from the fixed device and the fixed device to the mobile device.

4 and 5 are diagrams showing an example of information transmitted from the solar cell array to the server.

Referring to FIGS. 4 and 5 and Table 2, an information structure for batch output of a fluid cell will be described.

1st jar information Cell Array  Information Cell  Information Total Cell Array Count Cell Array Identifier (ID) Cell identifier (ID) Receive Cell Array Count Total Cells Horizontal position Receive Array Data Receive Cells Vertical position Receive Cell Data

Information transmitted from the solar cell array 100 to the server 300 includes first complex information, cell array information, and cell information. The first complex information includes the total number of cell arrays, the number of receiving cell arrays, and the data of the receiving array, wherein the cell array information includes the identifier of the cell array, the total number of cells, the number of receiving cells, and the data of the receiving cells. (Value), and the cell information includes the cell's identifier, the abscissa (position), and the ordinate (position).

4 and 5 show solar cell arrays with different arrangements, respectively.

The total number of cell arrays is two shown in FIGS. 4 and 5.

The number of receiving cell arrays is also two shown in FIGS. 4 and 5. If the cell array shown in FIG. 5 is not received, the number of receiving cell arrays may be one.

The received cell array data may be a voltage value as a value of electrical energy. Each cell may have a different voltage value.

In the cell array identifier, an identifier of the cell array illustrated in FIG. 4 may be “1”, and an identifier of the cell array illustrated in FIG. 5 may be “2”.

The total number of cells may be 40.

The number of receiving cells may be 38 except for the (x2, y2) cells of FIG. 4 and the (x2, y2) cells of FIG.

The data of the receiving cell may be a value representing electrical energy shown in FIGS. 4 and 5, respectively.

The cell identifier may be represented as "1-A", which indicates a cell called "A" located in the cell array identifier "1". On the other hand, the identifier of the cell array is used to indicate the order of the array to be actually displayed, but the cell identifier is used to prevent the duplicate notation.

In addition, the coordinate values of each cell may be displayed in two dimensions, and the server 300 receiving such information may check the shape of each cell array.

In the conventional monitoring method, when the cell arrangement of the solar cell array 100 is changed, it is inconvenient to additionally input information according to the monitoring method. However, according to the present monitoring method, the server 300 in the solar cell array 100 is provided. By broadly defining the information to be transmitted to, the shape and failure or failure of the solar cell array 100 can be understood more intuitively, and the solar cell array 100 can be more easily managed.

6 and 7 illustrate another example of information transmitted from the solar cell array to the server.

Referring to FIGS. 6 and 7 and Table 3, an information structure for identifying information of a complex in which solar cells are arranged will be described.

2nd jar information Alias Information country code 82-64-754-3678 X-dong, Jeju-si, Jeju-do XXX area code 82-02-752-2144 Gongneung-dong, Seoul ... dialing Subscriber number

Information transmitted from the solar cell array 100 to the server 300 includes second jar information and alias information.

The second jar information includes country code, area code, station number and subscriber number.

Alias information includes phone numbers and addresses.

The telephone number can basically be used to identify the second complex information.

By transmitting a phone number from the solar cell array 100 to the server 300, it is possible to distinguish between the solar cell power plant in Jeju Island and the solar cell power plant in Seoul.

The solar cell array Array 1 of FIG. 6 has a cell array identifier of "1", and the solar cell array (Array 2) of FIG. 7 has a cell array identifier of "2". In this case, the array of solar cells is sorted using the identifier, and the solar cell array having a low integer may be represented first.

8 and 9 illustrate examples of electric energy values transmitted from the solar cell array to the server.

8 and 9, when the electrical energy value of the solar cell array is received from the server 300, a method of evaluating the failure or abnormality by evaluating it is described.

The amount of solar cells used in photovoltaic power generation may vary depending on external variables such as environment, season, weather, time, and the like. Therefore, the amount of sunshine of the solar cell may vary according to the environment, season, weather, and time zone. As a result, it is difficult to determine whether a failure or abnormality by evaluating one solar cell according to a specific criterion.

When the server 300 wants to determine whether the cell shown by "c" is abnormal (fault) as shown in FIG. 8, the server 300 is left and right with all cells in the up and down direction of the cell shown by "c" in the cell array. All cells in the direction can be designated as a cell group. By calculating the sum of the cells designated as the cell group and obtaining the average, it is possible to determine whether the cell is abnormal. In this way, by performing relative evaluation of the cells using the cell group designation in the east, west, north and north directions, it is possible to determine whether or not the cell shown by "c".

 Alternatively, when the server 300 wants to determine whether the cell shown by "c" is abnormal (failure) as shown in FIG. 9, the server 300 checks the electric energy value of the cell shown by "c" in the cell array. Thus, cells having the same value as the electrical energy of the cell shown by "c" can be designated as a cell group. As described above, the cell group is designated based on the DC path having the same electric energy value, and the relative evaluation of the cells can be performed to determine whether the cell shown by “c” is abnormal.

Here, the cell group may include a first cell group including other cells arranged in the same column as a specific cell, a second cell group including other cells arranged in the same row as the specific cell, and another cell arranged diagonally with the specific cell. A third cell group including the first cell group; a fourth cell group including other cells disposed above, below, left, and right of the specific cell; a fifth cell group including other cells arranged in the same row and column as the specific cell; May be any one of a sixth cell group including other cells and a seventh cell group including other cells having an output voltage equal to the output voltage of the specific cell.

8 illustrates the fifth cell group and the seventh cell group in FIG. 9, various cell groups may be designated as described above.

The adjacent arrangement means to be disposed next to a specific cell, and the spaced arrangement means not to be placed next to the specific cell, but to be spaced apart by a predetermined distance.

Cells arranged in a diagonal direction with a specific cell mean four cells disposed in a 45 degree, 135 degree, 225 degree, and 315 degree direction with the specific cell, respectively.

The output voltage equal to the output voltage of a specific cell may include not only a case where the voltage value is the same, but also a thing in which the difference in voltage value is less than or equal to a predetermined value and can be regarded as substantially the same.

According to this method, rather than checking the change according to the weather and time, it is possible to check whether its value is generated like other cells in the amount of power generated at that time. In detail, a relative evaluation method that considers the values of neighboring cells is applied in order to help to clearly identify the problem, compared to the conventional method, which showed a sharp difference in time, weather season, etc., and was unable to determine the problem.

On the other hand, it is possible to determine whether or not abnormality based on the information transmitted from the solar cell array to the server, the criterion for determining the abnormality may be set in advance by the default value.

However, it is necessary to set the relative evaluation criteria of a solar cell differently according to an environment or a user request. To this end, a user (administrator) may directly set (add / modify / delete) the evaluation criteria for determining whether a failure is stored in the server 300 in the terminal device 500.

Receive Reference value Explanation


Receive Reference value Explanation Never over 90 normal Never over 90 normal reception More than 80% Need cleaning reception More than 80% Need replacement reception More than 70% Check required reception 70% Marman Need replacement

As shown in Table 4, the comprehensive message received by the terminal device 500 on a daily basis may include "normal", "cleaning required", "check required", "replacement required", and the like. The monthly comprehensive message received at 500 may include “normal” and “replacement required”.

The user may designate whether the terminal device 500 receives the comprehensive message on a daily basis or the monthly comprehensive message. The reference value may be arbitrarily designated. The designated information may be stored in the server 300, and the corresponding message may be transmitted to the terminal device 500 by evaluating the received information from which the information is received from the solar cell.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of illustration, It goes without saying that the example can be variously changed. Accordingly, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents. * * * * * Recently Added Patents

100: solar cell array 150: communication unit
200: first network 300: server
400: second communication network 500: terminal device

Claims (15)

In the photovoltaic device equipped with a remote monitoring system,
A solar cell array in which a plurality of solar cells for converting solar energy into electrical energy are arranged in rows and columns;
A sensing unit provided in each of the solar cells to sense an output voltage of each of the solar cells;
A communication unit configured to receive the sensed output voltage and wirelessly transmit it to a first communication network;
A server for performing a relative evaluation of the solar cell based on an output voltage received through the first communication network according to a preset event occurrence and wirelessly transmitting a result of the relative evaluation to a second communication network; And
And a terminal device configured to receive a result of the relative evaluation through the second communication network.
The relative evaluation may determine whether the specific cell has failed in consideration of an output voltage of a cell group including the specific cell and other cells surrounding the specific cell,
The cell group may include a first cell group including other cells arranged in the same column as the specific cell, a second cell group including other cells arranged in the same row as the specific cell, and arranged diagonally with the specific cell. A third cell group including other cells, a fourth cell group including other cells disposed above, below, left, and right of the specific cell, and a fifth cell group including other cells arranged in the same row and column as the specific cell And a sixth cell group including other cells surrounding the specific cell, and a seventh cell group including other cells having an output voltage equal to the output voltage of the specific cell. It is provided with a photovoltaic device. The method of claim 1,
Based on the output voltage of the specific cell, when the output voltage of the other cells is out of a predetermined range, it is determined that the specific cell has failed, characterized in that the photovoltaic device with a remote monitoring system. delete The method of claim 1,
The server comprises:
When the user command requesting sensing of the output voltage is received from the terminal device, the output voltage of the specific cell is less than a predetermined threshold value, or a predetermined time interval elapses, the predetermined event is determined to have occurred. Photovoltaic device equipped with a remote monitoring system, characterized in that. 5. The method of claim 4,
The server comprises:
When the temperature, humidity, precipitation, wind speed, snowfall, and air pressure is outside the allowable range, the photovoltaic device with a remote monitoring system, characterized in that it is determined that the predetermined event has occurred. The method of claim 5,
The sensing unit senses at least one of temperature, humidity, precipitation, wind speed, snowfall, and air pressure,
The server is a photovoltaic device having a remote monitoring system, characterized in that for receiving at least one of the sensed temperature, humidity, precipitation, wind speed, snowfall, and air pressure. The method according to claim 6,
The allowable range is,
After the input from the terminal device, the solar power generation apparatus equipped with a remote monitoring system, characterized in that received and stored in the server via the second communication network. delete The method of claim 1,
The solar cell array is a plurality of cells including a first cell array and the remaining cell arrays,
And the cell group comprises cells having the same coordinate value as the specific cell in each of the specific cell and the remaining cell arrays of the first cell array. 10. The method of claim 9,
The server is a photovoltaic device having a remote monitoring system, characterized in that for receiving and storing the coordinate values of the cells included in each of the plurality of solar cell array. In the photovoltaic device equipped with a remote monitoring system,
A solar cell array in which a plurality of solar cells for converting solar energy into electrical energy are arranged in rows and columns;
A sensing unit provided in each of the solar cells to sense an output voltage of each of the solar cells;
A communication unit configured to receive the sensed output voltage and wirelessly transmit it to a first communication network;
A server configured to store an output voltage of each of the solar cells received through the first communication network and to wirelessly transmit the stored output voltage to a second communication network; And
And a terminal device configured to receive and display the output voltage through the second communication network.
The server considers an output voltage of a cell group including the specific cell and other cells surrounding the specific cell when a user command requesting the output voltage confirmation of the specific cell is received from the terminal device through the second communication network. Determine whether the specific cell has failed, and retransmit the result of the determination to the terminal device through the second communication network;
The cell group may include a first cell group including other cells arranged in the same column as the specific cell, a second cell group including other cells arranged in the same row as the specific cell, and arranged diagonally with the specific cell. A third cell group including other cells, a fourth cell group including other cells disposed above, below, left, and right of the specific cell, and a fifth cell group including other cells arranged in the same row and column as the specific cell And a sixth cell group including other cells surrounding the specific cell, and a seventh cell group including other cells having an output voltage equal to the output voltage of the specific cell. It is provided with a photovoltaic device. 12. The method of claim 11,
Based on the output voltage of the specific cell, when the output voltage of the other cells is out of a predetermined range, it is determined that the specific cell has failed, characterized in that the photovoltaic device with a remote monitoring system. delete delete 12. The method of claim 11,
The solar cell array is a plurality of cells including a first cell array and the remaining cell arrays,
And the cell group comprises cells having the same coordinate value as the specific cell in each of the specific cell and the remaining cell arrays of the first cell array.

Images