An operation monitoring system for a photovoltaic power station

Abstract

The present invention discloses an operation monitoring system for a photovoltaic power station, which includes a data acquisition module for real-time collecting data information of the photovoltaic power station, encrypting the data through an encryption module, and transmitting the data information of the photovoltaic power station to a server in the form of a first data packet; an environment monitoring module for real-time monitoring the environment information of the photovoltaic power station; a sniffer disposed in the photovoltaic power station for intercepting the first data packet sent by the data acquisition module and the second data packet sent by the environment monitoring module, judging whether the first data packet is successfully encrypted and transmitting the judgment result to the server, and transmitting the environment information in the second data packet and the marked environment information to the server at a frequency of T / 2 cycle; the present invention encrypts the data information of the photovoltaic power station through the encryption module, improves the security guarantee of the transmitted information, sets a sniffer to verify and detect the transmitted information, and improves the reliability of data transmission.

Description

Technical Field

[0001] The present invention relates to the technical field of monitoring, and particularly to an operation monitoring system for a photovoltaic power station. Background Art

[0002] A photovoltaic power station refers to a power generation system that utilizes solar energy and consists of special materials such as crystalline silicon panels, inverters and other electronic components, and is connected to the power grid and transmits electricity to the power grid. Photovoltaic power stations are currently the green power development energy projects with the greatest encouragement from the state, and can be divided into independent power generation systems with batteries and grid-connected power generation systems without batteries. Solar power generation is divided into solar thermal power generation and photovoltaic power generation. At present, the commercialized solar electric energy refers to solar photovoltaic power generation. When a photovoltaic power station is working, there are often some potential safety hazards, which may lead to dangerous things happening, and at the same time, it is very difficult for people to clearly understand the working state of the power station.

[0003] The existing monitoring system for the working state of a photovoltaic power station only monitors whether the photovoltaic power station is working, and cannot monitor the state of the power station at different times. At the same time, it cannot make corresponding analyses for abnormal actions of the working state of the power station, and there are some potential safety hazards.

[0004] At the same time, the monitoring data of a photovoltaic power station needs to be kept confidential. In the prior art, the confidentiality of data transmission is poor, which is likely to cause data loss and leakage, resulting in the interception or tampering of monitoring information.

[0005] For example, Chinese Patent CN201811011878.X discloses a monitoring system for a photovoltaic power station based on the MQTT protocol. An operation command is sent to the intelligent gateway of the photovoltaic power station through a cloud platform to achieve the control of power station equipment. Users can not only log in to the MQTT client to subscribe to the messages sent by the server through them, view the current operating status and fault information of the photovoltaic power station, and evaluate the operating status of the photovoltaic power station by analyzing the historical fault information. When a fault occurs, the operation and maintenance personnel can repair it in time to avoid accidents; however, the monitoring system of the photovoltaic power station in this application cannot ensure the security and confidentiality of data transmission, resulting in easy interception and leakage of information. Summary of the Invention

[0006] The present invention mainly solves the problem that there are potential safety hazards in the transmission process of monitoring information of a photovoltaic power station in the existing technology; provides an operation monitoring system for a photovoltaic power station, encrypts the transmission of monitoring information of the photovoltaic power station, and performs information verification to ensure the integrity and security of the information.

[0007] The above technical problems of the present invention are mainly solved by the following technical solutions: An operation monitoring system for a photovoltaic power station, comprising: a data acquisition module, configured to collect data information of the photovoltaic power station in real time, and after encrypting the data through an encryption module, transmit the data information of the photovoltaic power station to a server in the form of a first data packet;

[0008] An environment monitoring module, configured to monitor the environment information of the photovoltaic power station in real time, and transmit the environment information to the server in the form of a second data packet at a frequency of period T;

[0009] A sniffer, disposed in the photovoltaic power station, configured to intercept the first data packet sent by the data acquisition module and the second data packet sent by the environment monitoring module, parse the data of the first data packet, determine whether the first data packet is successfully encrypted and transmit the judgment result to the server, parse the data of the second data packet, obtain the environment information in the second data packet, mark the environment information according to the historical data stored in the memory, and transmit the environment information in the second data packet and the marked environment information to the server at a frequency of T / 2 period;

[0010] A server, configured to receive the data information of the data acquisition module, and when the judgment result transmitted by the sniffer is yes, parse the data of the first data packet, when the judgment result transmitted by the sniffer is no, issue an instruction to the data acquisition module to resend the data information of the photovoltaic power station, receive the environment information transmitted by the environment monitoring module, compare it with the environment information transmitted by the sniffer, and retain the marked environment information when the comparison result is consistent, otherwise, issue an instruction to the environment monitoring module to re-upload the environment information, and generate operation index data of the photovoltaic power station according to the data information of the photovoltaic power station and the marked environment information;

[0011] A mobile monitoring terminal, configured to send a data access request to the server to obtain the data information of the photovoltaic power station, the marked environment information, and the operation index data of the photovoltaic power station. Encrypt the data information of the photovoltaic power station through the encryption module. Even if the encrypted data packet is stolen, it cannot be decrypted, which improves the security guarantee of the transmitted information. Set up a sniffer to intercept the transmitted data, simulate the process and method of data theft, and at the same time, verify and detect the transmitted information to ensure that the data received by the server is complete, and improve the reliability of data transmission.

[0012] Preferably, the data information of the photovoltaic power station includes the temperature information of photovoltaic equipment, the power generation amount of the photovoltaic power station, the maintenance information of photovoltaic equipment, and the sound information of the operation of photovoltaic equipment. By collecting the temperature information of photovoltaic equipment, the power generation amount of the photovoltaic power station, the maintenance information of photovoltaic equipment, and the sound information of the operation of photovoltaic equipment, the overall monitoring of the photovoltaic power station is realized, and maintenance is carried out at the first time when the photovoltaic equipment fails, preventing the photovoltaic equipment from having continuous failures and causing further damage to the equipment, and prolonging the service life of the equipment.

[0013] Preferably, the environmental information of the photovoltaic power station includes environmental temperature information, meteorological information, and soil change information. Through the environmental temperature information and meteorological information, the power generation amount that the photovoltaic equipment can generate is judged, combined with the power generation amount information of the photovoltaic power station collected by the data acquisition module, the fault judgment of the photovoltaic equipment is carried out. Through the soil information, the ground soil of the photovoltaic power station is inspected to prevent failures such as landslides. At the same time, according to the soil state, the vibration situation of the grounding equipment can be feedback, improving the comprehensiveness of the monitoring of the photovoltaic power station.

[0014] Preferably, the mobile monitoring terminal is provided with a first Bluetooth module, the sniffer is provided with a second Bluetooth module, the second Bluetooth module sends an electromagnetic wave signal to the surrounding environment. When the mobile monitoring terminal enters the signal area of the second Bluetooth module, the first Bluetooth module is communicatively connected to the second Bluetooth module, and the sniffer sends the environmental information and the marked environmental information in the second data packet to the mobile monitoring terminal. When the staff holds the mobile monitoring terminal and enters the photovoltaic power station, the environmental information can be received and viewed more quickly, and the timeliness of the information is better.

[0015] Preferably, it further includes a timing module, the timing module is connected to the data acquisition module, and timing is carried out when the data acquisition module collects data once, and the timing information is sent to the encryption module and the server. By timing through the timing module, it is used for encryption and at the same time is convenient for information viewing and information backtracking.

[0016] Preferably, the method for the encryption module to encrypt data is as follows: according to the timing information of the timing module, a timestamp is added to the header of the data packet to encrypt the data packet. When encrypting with a timestamp, the hours, minutes, and seconds of the timestamp are added up to obtain a number L, the decimal number L is converted into a binary string, and the data packet is encrypted according to the converted binary string.

[0017] Preferably, it further includes an inspection robot, the inspection robot moves in the photovoltaic power station according to the inspection route, and dynamically monitors the photovoltaic equipment and environmental information along the inspection route, and the inspection robot is connected to the server. Through the dynamic inspection by the inspection robot, the equipment monitoring of the photovoltaic power station is more comprehensive.

[0018] Preferably, the inspection robot is provided with an alarm device. When the inspection robot determines that an abnormality occurs in the photovoltaic power station, it transmits an alarm message to the server and simultaneously gives an on-site alarm through the alarm device. By giving an alarm through the alarm device, relevant maintenance personnel can be notified immediately when a fault occurs in the photovoltaic equipment, so that the equipment can be quickly repaired to prevent continuous faults of the equipment and resulting in equipment damage.

[0019] The beneficial effects of the present invention are as follows: The encryption module encrypts the data information of the photovoltaic power station. Even if the encrypted data packet is stolen, it cannot be decrypted, which improves the security guarantee of the transmitted information. A sniffer is set to intercept the transmitted data and simulate the process and method of data stealing. At the same time, the transmitted information is verified and detected to ensure that the data received by the server is complete, thereby improving the reliability of data transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of the monitoring system according to an embodiment of the present invention.

[0021] In the figure, 1. data acquisition module, 2. environmental monitoring module, 3. sniffer, 4. server, 5. mobile monitoring terminal. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following specific examples illustrate the embodiments of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0023] It should be noted that in the following description, reference is made to the accompanying drawings which describe several embodiments of the present invention. It should be understood that other embodiments can also be used and mechanical compositions, structures, electricals, and operations can be changed without departing from the spirit and scope of the present invention. The following detailed description should not be considered restrictive, and the scope of the embodiments of the present invention is only defined by the claims of the published patent. The terms used herein are only for describing specific embodiments and are not intended to limit the present invention. Spatially related terms, such as "upper", "lower", "left", "right", "below", "beneath", "lower part", "above", "upper part", etc., may be used in the text to facilitate the description of the relationship between one element or feature shown in the figure and another element or feature.

[0024] In the present invention, unless otherwise clearly specified or limited, terms such as "install", "connect", "link", "fix", "hold" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Furthermore, as used herein, the singular forms "a", "an" and "the" are also intended to include the plural forms unless the context clearly indicates otherwise. Terms such as "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments described herein can be implemented in an order different from that shown or described herein. In addition, the terms "comprise" and "include" indicate the presence of the described features, operations, elements, components, items, types, and / or groups, but do not exclude the presence, occurrence or addition of one or more other features, operations, elements, components, items, types, and / or groups. It should be further understood that the terms "or" and "and / or" used herein are interpreted as inclusive, or meaning any one or any combination. Thus, "A, B or C" or "A, B and / or C" means "any one of the following: A; B; C; A and B; A and C; B and C; A, B and C". An exception to this definition only occurs when the combination of elements, functions or operations is inherently mutually exclusive in some way.

[0026] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the technical solutions in the embodiments of the present invention will be further described in detail through the following embodiments in combination with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the invention.

[0027] Embodiment: An operation monitoring system for a photovoltaic power station, as Figure 1 shown, includes a data acquisition module 1, an environmental monitoring module 2, a sniffer 3, a server 4 and a mobile monitoring terminal 5. The data acquisition module, the environmental monitoring module and the sniffer are all installed in the photovoltaic power station. The data acquisition module, the environmental monitoring module and the sniffer are all connected to the server. The sniffer intercepts the transmission data of the data acquisition module and the environmental monitoring module. The mobile monitoring terminal is provided with a display interface and is connected to the server.

[0028] The data acquisition module is used to collect the data information of the photovoltaic power station in real time. After the data is encrypted by the encryption module, the data information of the photovoltaic power station is transmitted to the server in the form of the first data packet. The data acquisition module includes a first temperature sensor, a voltage acquisition module, a current acquisition module, a maintenance information memory, a sound wave generator and a recording device. Among them, the first temperature sensor is used to collect the temperature information of the photovoltaic equipment, the voltage acquisition module and the current acquisition module are used to collect the power generation power of the photovoltaic power station. After each maintenance of the photovoltaic equipment, the maintenance personnel record the maintenance information in the maintenance information memory, and predict the service life of the equipment through the maintenance information, equipment signals and equipment usage duration. A rotating component is arranged at the installation part of the photovoltaic module. The rotating component drives the photovoltaic module to rotate. The rotating component is equipped with a network time synchronization device. The rotating component is controlled to rotate through the network time synchronization device, so that the photovoltaic module rotates with the movement of the sun to receive more sunlight. The sound wave generator sends out sound waves to detect the rotation of the photovoltaic module, and the recording device receives the sound waves. Whether the photovoltaic module rotates normally is judged according to the sending time and receiving time of the sound waves.

[0029] Specifically, 6:00 am every day is the starting position of the rotation of the photovoltaic module, and 18:00 pm is the rotation end point of the photovoltaic module. When the time of the network time synchronization device reaches 18:00, the rotating component is controlled to rotate in the reverse direction, so that the photovoltaic module slowly resets.

[0030] The present invention does not make specific limitations and descriptions on the rotating component, which can be a motor or any rotatable device.

[0031] The environment monitoring module is used to monitor the environment information of the photovoltaic power station in real time, and transmit the environment information to the server in the form of the second data packet at a frequency of period T. The environment monitoring module includes a second temperature sensor, a meteorograph and a soil detector. The ambient temperature information is detected by the second temperature sensor, the meteorological information is detected by the meteorograph, and the soil information is detected by the soil detector. The power generation amount that the photovoltaic equipment can generate is judged through the ambient temperature information and the meteorological information. Combining with the power generation amount information of the photovoltaic power station collected by the data acquisition module, the fault of the photovoltaic equipment is judged. The ground soil of the photovoltaic power station is inspected through the soil information to prevent faults such as landslides. At the same time, according to the soil state, the vibration condition of the grounding equipment can be feedback, improving the comprehensiveness of the monitoring of the photovoltaic power station.

[0032] A sniffer, installed in a photovoltaic power station, is used to intercept the first data packet sent by the data acquisition module and the second data packet sent by the environmental monitoring module, parse the data of the first data packet, determine whether the first data packet is successfully encrypted and transmit the judgment result to the server, parse the data of the second data packet, obtain the environmental information in the second data packet, mark the environmental information according to the historical data stored in the memory, and transmit the environmental information in the second data packet and the marked environmental information to the server at a frequency of T / 2 cycle; by parsing the first data packet through the sniffer, if the first data packet is successfully parsed, it means the first data packet is not encrypted, and the sniffer feeds back to the server, and the server repairs the encryption module through relevant personnel. When the first data packet cannot be parsed by the sniffer, it proves that the first data packet is successfully encrypted, and even if it is obtained by others midway, there will be no risk of information leakage, improving the security of information transmission. By intercepting the second data packet transmitted by the environmental monitoring module through the sniffer, the server confirms the integrity of data transmission through comparison, and sends data at different cycle frequencies to ensure that the received data has not been changed midway.

[0033] A server, which receives the data information of the data acquisition module, and when the judgment result transmitted by the sniffer is yes, parses the data of the first data packet. When the judgment result transmitted by the sniffer is no, it issues an instruction to the data acquisition module to resend the data information of the photovoltaic power station, receives the environmental information transmitted by the environmental monitoring module, and compares it with the environmental information transmitted by the sniffer. When the comparison result is consistent, it retains the marked environmental information. Otherwise, it issues an instruction to the environmental monitoring module to resend the environmental information, and generates the operation index data of the photovoltaic power station according to the data information of the photovoltaic power station and the marked environmental information;

[0034] A mobile monitoring terminal sends a data access request to the server to obtain the data information of the photovoltaic power station, the marked environmental information, and the operation index data of the photovoltaic power station; the mobile monitoring terminal is provided with a first Bluetooth module, and the sniffer is provided with a second Bluetooth module. The second Bluetooth module sends electromagnetic wave signals to the surrounding environment. When the mobile monitoring terminal enters the signal area of the second Bluetooth module, the first Bluetooth module communicates with the second Bluetooth module, and the sniffer sends the environmental information in the second data packet and the marked environmental information to the mobile monitoring terminal.

[0035] In this embodiment, a timing module is also set. The timing module is connected to the data acquisition module. When the data acquisition module acquires data once, it performs timing and sends the timing information to the encryption module and the server. The method for the encryption module to encrypt data is: according to the timing information of the timing module, add a timestamp to the header of the data packet for data packet encryption.

[0036] Furthermore, an inspection robot is provided in the photovoltaic power station of the present invention. The inspection robot moves within the photovoltaic power station according to the inspection route, dynamically monitors the photovoltaic equipment and environmental information along the inspection route. The inspection robot is connected to the server and transmits the data information monitored along the inspection route to the server. The inspection robot is provided with an alarm device. When the inspection robot determines that an abnormality occurs in the photovoltaic power station, it transmits an alarm message to the server and simultaneously gives an on-site alarm through the alarm device.

[0037] The above-described embodiments are only a preferred solution of the present invention and do not impose any form of limitation on the present invention. There are other variations and modifications without exceeding the technical solutions described in the claims.

Claims

1. An operation monitoring system for a photovoltaic power station, characterized in that, Including: A data acquisition module, which is used to collect the data information of the photovoltaic power station in real time. After encrypting the data through the encryption module, it transmits the data information of the photovoltaic power station to the server in the form of a first data packet; An environment monitoring module, which is used to monitor the environment information of the photovoltaic power station in real time and transmit the environment information to the server in the form of a second data packet at a frequency of period T; A sniffer, which is set in the photovoltaic power station and is used to intercept the first data packet sent by the data acquisition module and the second data packet sent by the environment monitoring module. It analyzes the data of the first data packet to judge whether the first data packet is successfully encrypted and transmits the judgment result to the server. It analyzes the data of the second data packet to obtain the environment information in the second data packet, marks the environment information according to the historical data stored in the memory, and transmits the environment information in the second data packet and the marked environment information to the server at a frequency of T / 2; A server, which receives the data information of the data acquisition module and, when the judgment result transmitted by the sniffer is yes, analyzes the data of the first data packet. When the judgment result transmitted by the sniffer is no, it issues an instruction to the data acquisition module to resend the data information of the photovoltaic power station. It receives the environment information transmitted by the environment monitoring module and compares it with the environment information transmitted by the sniffer. When the comparison result is consistent, it retains the marked environment information. Otherwise, it issues an instruction to the environment monitoring module to resend the environment information, and generates the operation index data of the photovoltaic power station according to the data information of the photovoltaic power station and the marked environment information; A mobile monitoring terminal, which sends a data access request to the server to obtain the data information of the photovoltaic power station, the marked environment information, and the operation index data of the photovoltaic power station.

2. The operation monitoring system of a photovoltaic power station according to claim 1, characterized in that The data information of the photovoltaic power station includes the temperature information of the photovoltaic equipment, the power generation of the photovoltaic power station, the maintenance information of the photovoltaic equipment, and the sound information of the operation of the photovoltaic equipment.

3. The operation monitoring system of a photovoltaic power station according to claim 1 or 2, characterized in that The environment information of the photovoltaic power station includes environmental temperature information, meteorological information, and soil change information.

4. The operation monitoring system of a photovoltaic power station according to claim 1, characterized in that The mobile monitoring terminal is provided with a first Bluetooth module, and the sniffer is provided with a second Bluetooth module. The second Bluetooth module sends an electromagnetic wave signal to the surrounding environment. When the mobile monitoring terminal enters the signal area of the second Bluetooth module, the first Bluetooth module is communicatively connected to the second Bluetooth module, and the sniffer sends the environment information in the second data packet and the marked environment information to the mobile monitoring terminal.

5. The operation monitoring system of a photovoltaic power station according to claim 1, characterized in that It further includes a timing module, which is connected to the data acquisition module. When the data acquisition module collects data once, it performs timing and sends the timing information to the encryption module and the server.

6. The operation monitoring system of a photovoltaic power station according to claim 5, characterized in that The method for the encryption module to perform data encryption is as follows: according to the timing information of the timing module, a timestamp is added to the header of the data packet for data packet encryption.

7. The operation monitoring system of a photovoltaic power station according to claim 1, characterized in that it further includes an inspection robot, which moves within the photovoltaic power station according to the inspection route, dynamically monitors the photovoltaic equipment and environmental information along the inspection route, and the inspection robot is connected to the server.

8. The operation monitoring system of a photovoltaic power station according to claim 7, characterized in that the inspection robot is provided with an alarm device, which transmits alarm information to the server when the inspection robot determines that an abnormality occurs in the photovoltaic power station, and simultaneously gives an on-site alarm through the alarm device.

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