Method and device for displaying information about photovoltaic power generation system

Abstract

A device according to an aspect comprises: at least one memory; and at least one processor, wherein the at least one processor: obtains data of each of a plurality of components included in a photovoltaic power generation system by selectively using any one of power line communication and wireless communication; determines at least one of state information and error information on each of the components on the basis of the data; and outputs at least one of the state information and the error information by using at least one of a flexible numeric display (FND) and a dot matrix.

Description

Method and device for displaying information on a solar power generation system

[0001] The present disclosure relates to a method and device for displaying information of a solar power generation system.

[0002] Recently, as interest in eco-friendly energy technologies has increased, the installation of solar power generation systems has also increased.

[0003] When these solar power systems are large-scale, they inevitably have to be installed far away from the places where the electricity generated by the solar power is used.

[0004] In this case, there was the inconvenience of having to go to the installation site of the solar power generation system to directly check the operating status information, power generation amount, communication status information, and communication error information of the devices included in the solar power system.

[0005] In addition, in order to remotely check information about a solar power generation system, a separate communication device such as a mobile device must be used. If there is a problem with the connection between the separate communication device and the solar power generation system, it is very difficult to determine the operating status of the devices included in the solar power generation system.

[0006] In this disclosure, it is intended to provide information on a solar power generation system so that a user can obtain various information on the solar power generation system without having to go to the installation site of the solar power generation facilities and easily understand the status of the solar power generation system.

[0007] The present invention provides a method and device for displaying information about a solar power generation system. Furthermore, the present invention provides a computer-readable recording medium containing a program for executing the method on a computer. The technical challenges to be addressed are not limited to the technical challenges described above, and other technical challenges may exist.

[0008] According to one aspect of the present disclosure, a method for displaying information of a solar power generation system can be provided, including: a step of obtaining data of each of a plurality of components included in a solar power generation system by selectively using either power line communication or wireless communication; a step of determining at least one of status information or error information of each of the components based on the data; and a step of outputting at least one of the status information or the error information using at least one of a flexible numeric display (FND) or a dot matrix.

[0009] According to another aspect of the present disclosure, a device includes a memory storing at least one program; and at least one processor executing the at least one program; wherein the at least one processor is configured to acquire data of a plurality of components included in a solar power generation system by selectively using either power line communication or wireless communication, determine whether the components have errors based on the data, determine at least one of status information or error information of the components based on the data, and output at least one of the status information or the error information using at least one of a flexible numeric display (FND) or a dot matrix.

[0010] A computer-readable recording medium according to another aspect of the present disclosure includes a recording medium having recorded thereon a program for executing the above-described method on a computer.

[0011] Through the display, users can remotely check the real-time status and information of various devices included in the solar power generation system.

[0012] Additionally, users can easily manage various devices included in the solar power generation system in response to real-time situations of the solar power generation system.

[0013] In addition, by providing the user with a screen that indicates whether there is an abnormality in the device included in the solar power generation system, the user can respond quickly and effectively to an abnormality in the device.

[0014] In addition, various information about the operating status of devices included in a solar power generation system can be provided to users in the form of letters, numbers, and symbols, even without connecting a separate communication device or accessing a platform such as the Web or an application.

[0015] In addition, the operating status of devices included in a solar power generation system can be displayed more diversely and intuitively using a display device, specifically a flexible numeric display (FND) or dot matrix.

[0016] However, the effects of the embodiments are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by a person having ordinary skill in the art from the description of the present invention.

[0017] FIG. 1 is a drawing for explaining an example of a method for displaying information of a solar power generation system according to one embodiment.

[0018] FIG. 2 is a schematic diagram illustrating an example of a device for displaying information of a solar power generation system according to one embodiment.

[0019] FIG. 3 is a flowchart illustrating an example of a method for displaying information of a solar power generation system according to one embodiment.

[0020] FIG. 4 is a flowchart illustrating an example of a method for selecting a communication method according to one embodiment.

[0021] FIG. 5 is a drawing for explaining an example of a device that outputs status information according to one embodiment.

[0022] FIG. 6 is a drawing for explaining another example of a device for outputting status information according to one embodiment.

[0023] FIG. 7 is a drawing for explaining an example of a method for displaying status information of a power conversion device according to one embodiment.

[0024] Figure 8 (a) is a drawing showing the basic state of a power conversion device, (b) is a drawing showing error information of a power conversion device, and (c) is a drawing showing power production information of a power conversion device.

[0025] (a) of Fig. 9 is a drawing showing the strength of a communication signal, (b) is a drawing showing the power generation status of a power conversion device, (c) is a drawing showing the communication status of a power conversion device, (d) is a drawing showing an access point mode, and (e) is a drawing showing the operation progress status of a power conversion device.

[0026] FIG. 10 is a drawing for explaining an example of a method for controlling an LED / LCD according to one embodiment to display the operating status of a power conversion device.

[0027] A device according to one aspect comprises at least one memory; and at least one processor; wherein the at least one processor obtains data of each of a plurality of components included in a solar power generation system by selectively using either power line communication or wireless communication, determines at least one of status information or error information of each of the components based on the data, and outputs at least one of the status information or the error information by using at least one of a flexible numeric display (FND) or a dot matrix.

[0028] The terms used in the examples are selected from widely used, current terms, as much as possible. However, these terms may vary depending on the intentions of those skilled in the art, precedents, the emergence of new technologies, etc. Furthermore, in certain cases, the applicant may arbitrarily select terms, in which case their meanings will be described in detail in the relevant description. Therefore, the terms used in the specification should be defined based on their intended meaning and the overall content of the specification, rather than simply their names.

[0029] When a part of the specification is said to "include" a component, this does not exclude other components, but rather implies the inclusion of other components, unless otherwise specifically stated. Furthermore, terms such as "unit" and "module" used throughout the specification refer to a unit that processes at least one function or operation, which may be implemented in hardware, software, or a combination of hardware and software.

[0030] Additionally, terms including ordinal numbers, such as "first" or "second," used in the specification may be used to describe various components, but the components should not be limited by the terms. The terms may be used to distinguish one component from another.

[0031] The present disclosure will be described in detail with reference to the attached drawings. However, the embodiments may be implemented in various different forms and are not limited to the examples described herein.

[0032] FIG. 1 is a drawing for explaining an example of a method for displaying information of a solar power generation system according to one embodiment.

[0033] Referring to FIG. 1, the device (200) can display information on the operating status of at least one device included in the solar power generation system (100).

[0034] Here, although the device (200) is illustrated as not being included in the solar power generation system (100), the device (200) may mean any one of a plurality of devices included in the solar power generation system (100), or may mean a separate device not included in the solar power generation system (100).

[0035] In addition, the device (200) may refer to a part of a device included in the solar power generation system (100). Specifically, the device (200) may refer to a part of a gateway included in the solar power generation system (100). Here, the gateway may refer to a communication device that collects information of hardware devices connected to the solar power generation system and transmits the collected information to the Internet and / or the cloud, and may refer to a device that enables a power conversion device and devices within the solar power generation system to communicate with a web or an application.

[0036] For example, the device (200) can display information on the operating status of a power conversion device (module level power electronics; MLPE) included in a solar power generation system (100). Here, the power conversion device is a device that converts power in module units and can include a micro inverter and a DO (DC optimizer).

[0037] Therefore, the user can check the operating status of the power conversion device through the device (200) without a separate communication device such as a mobile device.

[0038] For example, a user can remotely obtain information about a solar power generation system (100) without having to travel to the location where the solar power generation system (100) is installed. In addition, the user can obtain information about a device in which an abnormality has occurred and take action.

[0039] FIG. 2 is a schematic diagram illustrating an example of a device for displaying information of a solar power generation system according to one embodiment.

[0040] Referring to FIG. 2, a device (hereinafter referred to as "device") (200) for displaying information of a solar power generation system may include a communication unit (210), a processor (220), a memory (230), and a display unit (240). Only components related to the embodiment are illustrated in the device (200) of FIG. 2. Therefore, it is apparent to those skilled in the art that other general components may be included in addition to the components illustrated in FIG. 2.

[0041] The communication unit (210) may include one or more components that enable wired / wireless communication with an external server or external device. For example, the communication unit (210) may include a short-range communication unit (not shown) and a mobile communication unit (not shown) for communication with an external server or external device.

[0042] The processor (220) controls the overall operation of the device (200). For example, the processor (220) can control the input unit (not shown), the display (not shown), the communication unit (210), the memory (230), etc., by executing programs stored in the memory (230).

[0043] The processor (220) may be implemented using at least one of application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, micro-controllers, microprocessors, and other electrical units for performing functions.

[0044] The processor (220) can control the operation of the device (200) by executing programs stored in the memory (230). As an example, the processor (220) can perform at least a part of the method for displaying information of a solar power generation system described with reference to FIGS. 3 to 10.

[0045] The memory (230) is hardware that stores various data processed within the device (200), and can store a program for processing and controlling the processor (220).

[0046] For example, various data may be stored in the memory (230), such as power information such as power generation, temperature, current power consumption, predicted power consumption, stored power consumption, mobile power consumption, and the like; weather information such as wind speed, rainfall, snowfall, and sunrise / sunset times; firmware update data; and data generated according to the operation of the processor (220). In addition, the memory (230) may store an operating system (OS) and at least one program (e.g., a program necessary for the processor (220) to operate).

[0047] The memory (230) may include random access memory (RAM) such as dynamic random access memory (DRAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), CD-ROM, Blu-ray or other optical disk storage, hard disk drive (HDD), solid state drive (SSD), or flash memory.

[0048] The display unit (240) may be hardware that displays various data processed within the device (200).

[0049] For example, the display unit (240) may include a smartphone, tablet PC, PC, smart TV, media player, navigation, kiosk, wearable device, etc.

[0050] Accordingly, the user can obtain current and past information as well as predicted information of the solar power generation system through the display unit (240).

[0051] FIG. 3 is a flowchart illustrating an example of a method for displaying information of a solar power generation system according to one embodiment.

[0052] Referring to FIG. 3, a method for displaying information about a solar power generation system may include steps 310 to 330. However, the present invention is not limited thereto, and other general steps may be further included in the method for displaying information about a solar power generation system in addition to the steps illustrated in FIG. 3. Furthermore, as described above with reference to FIGS. 1 and 2, at least one of the steps in the flowchart illustrated in FIG. 3 may be processed by the processor (220).

[0053] In step 310, the processor (220) can obtain data of each of the plurality of components included in the solar power generation system by selectively using either power line communication or wireless communication.

[0054] For example, the processor (220) may determine a communication situation based on the surrounding environment in which the solar power generation system is located, and select either power line communication or wireless communication based on the determined communication situation. In addition, the processor (220) may determine a communication situation based on noise included in a signal according to either power line communication or wireless communication or a frequency of the signal, and may convert to either power line communication or wireless communication based on the determined communication situation.

[0055] In step 320, the processor (220) can determine at least one of status information or error information of each of the configurations based on the data.

[0056] For example, the processor (220) may scan at least one power conversion device included in a solar power generation system and extract status information of the power conversion device. Here, the status information of the power conversion device may include at least one of the number of all power conversion devices connected to the gateway, the communication status between the gateway and the power conversion device, and the operating status of the power conversion device.

[0057] Additionally, the processor (220) can determine whether each component has an error based on the data. For example, the processor (220) can determine whether a power conversion device or gateway included in a solar power generation system has an error using at least one sensor. As an example, the processor (220) can determine whether a power conversion device has an error by detecting that the grid frequency or grid voltage exceeds the normal operating range. As another example, the processor (220) can detect the response time of power line communication and determine whether a gateway has an error if the response time is longer than a predetermined time.

[0058] Additionally, the processor (220) can determine whether each configuration has an error based on data received from a server or cloud, etc. from the communication unit (210), or data obtained through communication with the web or application.

[0059] For example, the processor (220) can determine whether there is an error by comparing information obtained from a power conversion device or gateway with information stored in an external database, such as a server or cloud. Here, the information stored in the external database may include, but is not limited to, the product serial number, firmware version, etc. of the power conversion device or gateway.

[0060] For example, the processor (220) can determine whether there is an error by comparing it with information set by the user on the entire web or application.

[0061] For example, the processor (220) may determine an error if the number of power conversion devices included in a solar power generation system set by the user is different from the number of power conversion devices acquired by the processor (220) by scanning the power conversion devices. Here, the information set by the user on the web or application is not limited to the number of power conversion devices, and may include various setting values ​​related to the operation of the power conversion devices or gateway.

[0062] In step 330, the processor (220) may output at least one of information or status information related to whether an error has been determined. Here, the status information may be output using either a flexible numeric display (FND) or a dot matrix.

[0063] FIG. 4 is a flowchart illustrating an example of a method for selecting a communication method according to one embodiment.

[0064] Hereinafter, with reference to FIG. 4, an example of a method for a processor (220) to select a communication method is described.

[0065] Referring to FIG. 4, in step 410, the processor (220) determines the communication situation based on the surrounding environment in which the solar power generation system is located.

[0066] Additionally, at step 420, the processor (220) may select either power line communication or wireless communication based on the determined communication situation.

[0067] For example, the processor (220) can determine the communication status based on the surrounding environment of the location where the solar power generation system is installed. Accordingly, the processor (220) can determine the appropriate communication method among power line communication or wireless communication based on the surrounding environment where the solar power generation system is located.

[0068] As an example, the processor (220) may determine that power line communication is a suitable communication method based on the surrounding environment that impedes wireless communication.

[0069] For example, the processor (220) may determine that powerline communication is a suitable communication method when there are obstacles that interfere with communication, such as thick walls or trees, and that wireless communication may be difficult. In addition, the processor (220) may determine that powerline communication is a suitable communication method when it is determined that there are devices using the same public frequency band, and that wireless communication may be difficult.

[0070] As another example, the processor (220) may determine that a wireless communication method is a suitable communication method based on the surrounding environment that impedes power line communication.

[0071] For example, the processor (220) may determine that a wireless communication method is a suitable communication method because power line communication may have difficulty when noise from other electronic devices using the same power line communication network is significant. In addition, the processor (220) may determine that a wireless communication method is a suitable communication method because power line communication may have difficulty when frequency attenuation from other network devices using the same power line communication network is significant.

[0072] For example, the processor (220) can determine a communication situation based on noise included in a signal or a frequency of a signal according to either power line communication or wireless communication, and can convert to either power line communication or wireless communication based on the determined communication situation.

[0073] As an example, even if the processor (220) determines that the power line communication method is suitable and is already communicating using the power line communication method, it may determine that the communication situation is an obstacle to the power line communication and change the communication method to the wireless communication method.

[0074] For example, even when communicating using a power line communication method, if there is a lot of noise due to other electronic devices using the same power line communication network or a lot of frequency attenuation due to other network devices, the processor (220) may determine that the communication situation is an obstacle to power line communication and may change the communication method to a wireless communication method.

[0075] As another example, even if the processor (220) determines that a wireless communication method is suitable and is already communicating using the wireless communication method, it may determine that a communication situation is an obstacle to wireless communication and change the communication method to the power line communication method.

[0076] For example, even when communicating via wireless communication, the processor (220) may determine that there is an obstacle interfering with communication or that there is a device using the same public frequency band, and may change the communication method to power line communication.

[0077] Accordingly, the processor (220) can selectively use either power line communication or wireless communication to obtain data of each of the plurality of components included in the solar power generation system. Here, the plurality of components included in the solar power generation system can include a power conversion device (module level power electronics; MLPE), a gateway, a solar module, a load, a grid, and an energy saving system (ESS).

[0078] For example, the processor (220) can extract status information of each configuration based on the acquired data. In other words, the processor (220) can scan at least one power conversion device included in the solar power generation system and extract status information of the power conversion device.

[0079] Here, the power conversion device scan operation may refer to an operation of connecting the power conversion device to the gateway, and information about the power conversion device may be acquired through the scan operation. In addition, the status information of the power conversion device may include at least one of the number of all power conversion devices connected to the gateway, the communication status between the gateway and the power conversion device, and the operating status of the power conversion device.

[0080] For example, the processor (220) can obtain operating status data of the gateway, operating status data of the power conversion device, and error data of the gateway and the power conversion device.

[0081] For example, the processor (220) can obtain data or information such as whether the gateway is powered on, the communication status between the gateway and the communication unit (210), the communication status between the gateway and the power conversion device, whether the gateway is in the process of initialization, the scan operation status of the gateway's power conversion device, and an error in the gateway.

[0082] Additionally, the processor (220) can scan the power conversion devices to obtain data or information such as the number of power conversion devices connected to the gateway, the power generation amount of the power conversion devices connected to the gateway, the serial numbers of the power conversion devices connected to the gateway, errors in the power conversion devices connected to the gateway, and the operating status of the power conversion devices.

[0083] For example, the processor (220) may determine whether each configuration has an error based on data. Furthermore, the processor (220) may use at least one sensor to determine whether a power conversion device or gateway included in a solar power generation system has an error. Here, the sensor may include, but is not limited to, a voltage sensor, a current sensor, a temperature sensor, a communication sensor, and the like.

[0084] As an example, the processor (220) can sense abnormal operation of the power conversion device to determine whether there is an error in the power conversion device.

[0085] For example, the processor (220) can detect an abnormal voltage due to a component failure of the power conversion device to determine whether there is an error in the power conversion device. In addition, the processor (220) can detect a temperature rise due to the ambient temperature or high output and a malfunction of the ambient temperature or temperature sensor to determine whether there is an error in the power conversion device. In addition, the processor (220) can detect a system frequency or system voltage exceeding a normal operating range to determine whether there is an error in the power conversion device. In addition, the processor (220) can detect a malfunction of an MCU (micro control unit) to determine whether there is an error in the power conversion device.

[0086] As another example, the processor (220) can sense abnormal operation of the gateway to determine whether the gateway has an error.

[0087] For example, the processor (220) can detect the response time of power line communication and determine whether there is an error in the gateway if the response time exceeds a predetermined time. Furthermore, the processor (220) can detect whether the measured voltage or current exceeds a normal range to determine whether there is an error in the gateway. Furthermore, the processor (220) can detect whether a firmware update has failed to determine whether there is an error in the gateway.

[0088] Accordingly, the processor (220) can output information or status information related to the determined error. Additionally, the status information can be output using either a flexible numeric display (FND) or a dot matrix.

[0089] Fig. 5 is a diagram illustrating an example of a device for outputting status information according to one embodiment. Fig. 6 is a diagram illustrating another example of a device for outputting status information according to one embodiment.

[0090] Hereinafter, with reference to FIGS. 5 and 6, examples of a device in which a processor (220) outputs status information will be described.

[0091] First, referring to FIG. 5, the processor (220) can output status information or information related to an error using an output device (500).

[0092] For example, the output device (500) may include an FND (510) and an LED / LCD (520), and the processor (220) may display status information or information related to an error using the FND (510) or the LED / LCD (520). Here, the FND (flexible numeric display) (510) is also called a seven segment and may refer to a display device that is composed of seven line segments (530) and can display numbers, letters, etc. according to the status of each line segment (530). In addition, for the convenience of explanation, only a total of 21 line segments (530) are illustrated in FIG. 5, but the present invention is not limited thereto.

[0093] Accordingly, the processor (220) can display status information or error information by controlling the operation (e.g., on / off operation) of each line segment (530) composed of LED / LCD to generate a character or number form.

[0094] For example, the processor (220) can control the operation of the LED / LCD (520) to display the operating status of the power conversion device. Here, the operation of the LED / LCD (520) can include color change and blinking, and specific examples of controlling the LED / LCD (520) to display the operating status of the power conversion device will be described below.

[0095] Referring to FIG. 6, the processor (220) can display status information or information related to errors using a dot matrix. Here, the dot matrix can refer to a display device that can display characters, symbols, or images using a plurality of dot-shaped LEDs / LCDs.

[0096] For example, the processor (220) can display numbers, letters, symbols, etc. using the LED / LCD of each dot (610) included in the dot matrix.

[0097] For example, the processor (220) can control the power on / off, color change, and blinking of the point (610) to generate various shapes such as letters and symbols, thereby providing status information or error information to the user.

[0098] FIG. 7 is a diagram illustrating an example of a method for displaying status information of a power conversion device according to one embodiment. FIG. 8 is a diagram illustrating an example of a method for outputting information or status information related to a determined error according to one embodiment. Specifically, (a) of FIG. 8 is a diagram displaying the basic status of the power conversion device, (b) is a diagram displaying error information of the power conversion device, and (c) is a diagram displaying power production information of the power conversion device.

[0099] Hereinafter, with reference to FIGS. 7 and 8, an example of a method in which a processor (220) outputs status information or information related to an error of a power conversion device using the above-described FND will be described.

[0100] First, referring to FIG. 7, the processor (220) can display status information of the power conversion device by continuously changing the operating line segment (710) among the line segments included in the FND.

[0101] For example, the processor (220) can control the operation of each line segment (710) to display the operating status of the power conversion device. In other words, the processor (220) can display the status information of the power conversion device by continuously changing the operating line segment (710) to indicate the power-on status of the power conversion device.

[0102] Additionally, referring to FIG. 8, the processor (220) can display the basic status of the power conversion device.

[0103] For example, the processor (220) may display the number (810) of the power conversion device currently connected to the gateway. Specifically, the processor (220) may scan the power conversion device, and when the scan is completed, output C (complete), meaning that the operation is completed, along with the number of the power conversion device for which the scan is completed. Here, the operation may refer not only to the scan operation, but also to all operations of the power conversion device.

[0104] Additionally, the processor (220) can display error information of the power conversion device.

[0105] For example, the processor (220) may display the number (820) of the power conversion device in which an error exists, and then display error information (830). Specifically, the processor (220) may output E (error), which indicates that there is an error, along with an error code. Here, the error code may be displayed as a different number depending on the type of error.

[0106] Additionally, the processor (220) can display power production information of the power conversion device.

[0107] For example, the processor (220) may display the number of the power conversion device and then display the power generation information (840) of the displayed power conversion device. Specifically, the processor (220) may output P (power), which indicates the power generation, together with the power generation amount. Here, the power generation amount may be displayed in kW units, and may also be displayed in larger units depending on the number of FNDs.

[0108] In addition, if the power generation amount displayed in the power generation amount information (840) is outside the range of normal power generation amounts, the processor (220) may display the number of the power conversion device, display the power generation amount information (840) of the displayed power conversion device, and then display error information.

[0109] As an additional example, the processor (220) may display the number of connected power conversion devices.

[0110] FIG. 9 is a diagram illustrating an example of a method for generating a symbol according to one embodiment and outputting status information of a power conversion device. Specifically, (a) of FIG. 9 is a diagram showing the strength of a communication signal, (b) is a diagram showing the power generation status of the power conversion device, (c) is a diagram showing the communication status of the power conversion device, (d) is a diagram showing an access point mode, and (e) is a diagram showing the operation progress status of the power conversion device.

[0111] Hereinafter, with reference to FIG. 9, an example in which a processor (220) displays status information of a power conversion device using a dot matrix will be described.

[0112] Referring to FIG. 9, the processor (220) can generate a symbol using a dot matrix and display status information of the power conversion device through the color or shape of the generated symbol.

[0113] For example, the processor (220) can display the color, contrast, brightness, shape, on / off status, etc. of the dot matrix (910, 920, 930, 940, 950) differently.

[0114] For example, the processor (220) can display the strength of a communication signal of a power conversion device using a dot matrix (910). In other words, the processor (220) can measure the signal strength of power line communication or wireless communication used by the power conversion device and display it differently for each measured signal strength.

[0115] Specifically, the processor (220) can divide the signal into multiple sections according to the signal strength and display the dot matrix (910) differently according to the section corresponding to the measured signal strength. That is, the processor (220) can display the dot matrix (910) so that the size of the bars represented by the dot matrix (910) increases and the number of bars increases as the signal strength increases.

[0116] For example, the processor (220) can display the power generation status of the power conversion device using a dot matrix (920). In other words, the processor (220) can display whether the power generation status of the power conversion device is good. Here, whether the power generation status of the power conversion device is good can be determined using the difference between the expected power generation amount and the current power generation amount. In addition, although not shown, the processor (220) can display the power generation status of the power conversion device by outputting the current power generation amount.

[0117] For example, the processor (220) can display the communication status of the power conversion device using a dot matrix (930). In other words, the processor (220) can display whether the communication status between the power conversion device and the devices included in the solar power generation system is smooth. In addition, although not shown, the processor (220) can display the communication status by assigning a score to the communication status and outputting the assigned communication score.

[0118] For example, the processor (220) can display the access point mode using a dot matrix (940). Here, the access point mode (AP mode) may refer to a mode that enables transmission and reception of signals between a wireless LAN card (LAN) of a power conversion device or gateway and another wireless LAN card. Accordingly, the processor (220) can display the dot matrix (940) differently depending on whether it is the access point mode. In addition, the processor (220) can display normal operation and abnormal operation by differently expressing the color, contrast, brightness, etc. of the dot matrix (940) to determine whether the access point mode is operating normally.

[0119] For example, the processor (220) can display the operational progress of the power conversion device using a dot matrix (950). In other words, the processor (220) can display the operational progress of the power conversion device, and the operational progress can be displayed by expressing the size of an arrow, the color of an arrow, or the progress rate.

[0120] FIG. 10 is a drawing for explaining an example of a method for controlling an LED / LCD according to one embodiment to display the operating status of a power conversion device.

[0121] Hereinafter, with reference to FIG. 10, an example of a method in which a processor (220) displays the operating status of a power conversion device using an LED / LCD (1010, 1020, 1030) will be described.

[0122] Referring to FIG. 10, the processor (220) can control the color, blinking, etc. of the LED / LCD (1010, 1020, 1030) to display the operating status of the power conversion device.

[0123] For example, the processor (220) can control whether the color of the LED / LCD (1010, 1020, 1030) changes or blinks to display the operating status such as whether the power conversion device is turned on / off, whether scanning is possible, the connection status between the gateway and the power conversion device, whether the power conversion device is generating power, whether there is a power conversion device that does not generate power, whether a firmware update is in progress, and the communication status with the server.

[0124] For example, the processor (220) can indicate that the power conversion device is turned on and ready for scanning by controlling the color of all LEDs / LCDs (1010, 1020, 1030) to be green and blink.

[0125] Additionally, the processor (220) can indicate that at least one power conversion device is not connected to the gateway by controlling the color of the first LED / LCD (1010) to be red and not to blink.

[0126] Additionally, the processor (220) can indicate that the firmware of the power conversion device is being updated by controlling the color of the second LED / LCD (1020) to be green and blinking.

[0127] Additionally, the processor (220) can indicate a state in which there is no connection between the power conversion device and the server by controlling the color of the third LED / LCD (1030) to be red and not to blink.

[0128] For convenience of explanation and to help understanding, only a portion of the contents shown in Fig. 10 has been explained, but it is self-evident that the remaining contents can be understood as explained.

[0129] Meanwhile, the above-described method can be written as a program that can be executed on a computer, and can be implemented on a general-purpose digital computer that runs the program using a computer-readable recording medium. In addition, the structure of the data used in the above-described method can be recorded on a computer-readable recording medium through various means. The computer-readable recording medium includes storage media such as magnetic storage media (e.g., ROM, RAM, USB, floppy disk, hard disk, etc.) and optical reading media (e.g., CD-ROM, DVD, etc.).

[0130] Those skilled in the art will appreciate that the present invention can be implemented in modified forms without departing from the essential characteristics of the above-described invention. Therefore, the disclosed methods should be considered illustrative rather than restrictive. The scope of the claims, not the foregoing description, is defined by the scope of the patent, and should be interpreted to encompass all differences within the scope equivalent thereto.

Claims

1. A step of acquiring data of each of a plurality of components included in a solar power generation system by selectively using either power line communication or wireless communication; A step of determining at least one of status information or error information of each of the configurations based on the data; and A step of outputting at least one of the status information or the error information using at least one of a FND (flexible numeric display) or a Dot matrix; How to display information about a solar power generation system.

2. In paragraph 1, The above acquisition steps are: A step of determining a communication situation based on the surrounding environment where the solar power generation system is located; and A method comprising: selecting either the power line communication or the wireless communication based on the determined communication situation.

3. In paragraph 1, The above acquisition steps are: A step of determining a communication situation based on noise included in a signal according to either the power line communication or the wireless communication or the frequency of the signal; and A method comprising: a step of converting to either the power line communication or the wireless communication based on the determined communication situation; 4. In paragraph 1, The above judging step is, A step of scanning at least one power conversion device included in the solar power generation system; and A step of determining status information of the power conversion device; A method wherein the status information of the power conversion device includes at least one of the number of all power conversion devices connected to the gateway, a communication status between the gateway and the power conversion device, and an operating status of the power conversion device.

5. In paragraph 1, The above judging step is, A method for determining whether there is an error in a power conversion device or gateway included in the solar power generation system using at least one sensor.

6. In paragraph 5, The above judging step is, A method for determining whether there is an error in the power conversion device by detecting that the grid frequency or grid voltage exceeds the normal operating range.

7. In paragraph 5, The above judging step is, A method for detecting the response time of the above power line communication and determining whether there is an error in the gateway if the response time is longer than a predetermined time.

8. A computer-readable recording medium recording a program for executing the method of Article 1 on a computer.

9. Memory in which at least one program is stored; and comprising at least one processor executing at least one program; At least one processor, Acquire data of each of the multiple components included in the solar power generation system by selectively using either power line communication or wireless communication, Based on the above data, at least one of the status information or error information of each of the above configurations is determined, Outputting at least one of the status information or the error information using at least one of a flexible numeric display (FND) or a Dot matrix, A device that displays information about a solar power generation system.

10. In paragraph 9, At least one processor, The communication status is determined based on the surrounding environment where the above solar power generation system is located, A device that selects either the power line communication or the wireless communication based on the determined communication situation.

11. In paragraph 9, At least one processor, Determining the communication status based on noise included in a signal according to either the power line communication or the wireless communication or the frequency of the signal, A device that converts to either the power line communication or the wireless communication based on the determined communication situation.

12. In paragraph 9, At least one processor, Scanning at least one power conversion device included in the above solar power generation system, Determine the status information of the above power conversion device A device wherein the status information of the power conversion device includes at least one of the number of all power conversion devices connected to the gateway, a communication status between the gateway and the power conversion device, and an operating status of the power conversion device.

13. In paragraph 9, At least one processor, A device that determines whether there is an error in a power conversion device or gateway included in the solar power generation system using at least one sensor.

14. In paragraph 13, At least one processor, A device that detects whether the grid frequency or grid voltage exceeds the normal operating range and determines whether there is an error in the power conversion device.

15. In paragraph 13, At least one processor, A device that detects the response time of the power line communication and determines whether there is an error in the gateway if the response time is longer than a predetermined time.

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