CN117335576A - Photovoltaic support control system based on cloud edge cooperation - Google Patents
Photovoltaic support control system based on cloud edge cooperation Download PDFInfo
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- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 238000010248 power generation Methods 0.000 claims abstract description 18
- 238000012549 training Methods 0.000 claims abstract description 13
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims description 18
- 238000004891 communication Methods 0.000 claims description 14
- 230000008447 perception Effects 0.000 claims description 12
- 238000012545 processing Methods 0.000 abstract description 12
- 238000004364 calculation method Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 7
- 238000005457 optimization Methods 0.000 abstract description 5
- 230000017525 heat dissipation Effects 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000002269 spontaneous effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000000513 principal component analysis Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000012706 support-vector machine Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000003708 edge detection Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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- 230000003287 optical effect Effects 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00028—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment involving the use of Internet protocols
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/40—Thermal components
- H02S40/42—Cooling means
- H02S40/425—Cooling means using a gaseous or a liquid coolant, e.g. air flow ventilation, water circulation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
- H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Human Computer Interaction (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention relates to the field of photovoltaic power generation, in particular to a photovoltaic bracket control system based on cloud edge cooperation. According to the photovoltaic support parameter optimization method, the model is trained on the cloud server side, the model is optimized by means of relatively stronger data processing capacity, and the continuously optimized model is transmitted to the edge side control module, so that parameters of the photovoltaic support, particularly continuous optimization and improvement of a tracking strategy, are called and controlled in real time; in addition, the cloud training and model lowering, and the control model real-time calculation is called by the local edge side control module, so that the time delay of control data transmission is reduced compared with the cloud side real-time calculation processing; in addition, the photovoltaic bracket is further improved, and the embedded pipeline buried under the ground is communicated with the supporting rod, the hollow supporting arm, the hollow shaft and the channel of the photovoltaic bracket, so that a cooling channel for air circulation is formed, the heat dissipation effect of the photovoltaic bracket is enhanced, and the working stability of the photovoltaic panel is improved.
Description
Technical Field
The invention relates to the field of photovoltaic power generation, in particular to a photovoltaic bracket control system based on cloud edge cooperation.
Background
The photovoltaic support tracking system maximizes the capture of sunlight by dynamically adjusting the angle of the photovoltaic panel, thereby improving the power generation efficiency. Such a system may be single axis, moving only with east-west motion of the sun, or dual axis, while tracking north-south motion of the sun in the sky with seasonal variations. The core assembly includes a drive for moving the photovoltaic panel, a controller that makes adjustment decisions based on sensor inputs or preset algorithms, sensors that detect sun and environmental conditions, and a structural support that supports the photovoltaic panel.
The current tracking support system is generally controlled by a single chip microcomputer and directly accesses data into an electric field monitoring system, and the control logic is simpler and the informatization intelligent degree is not high, and specifically comprises the following steps: the data acquisition range is narrow, and the acquired data types are not rich enough; the acquisition and monitoring can only meet the common monitoring requirement, and the optimization of the tracking strategy is difficult to realize. In view of the above problems, we propose a photovoltaic bracket control system based on cloud edge cooperation.
Disclosure of Invention
In order to solve the problems, the invention discloses a photovoltaic bracket control system based on cloud edge cooperation.
In order to achieve the above purpose, the present invention provides the following technical solutions: a photovoltaic bracket control system based on cloud edge cooperation comprises a cloud server, an edge side control module and a data acquisition module; the cloud server is used for training a model according to historical data, issuing a trained control model file to the edge side control module and deploying the control model;
the edge side control module and the data acquisition module are both positioned at the photovoltaic power generation end; the edge side control module is used for calling a control model to control parameters of the photovoltaic bracket and transmitting historical data to the cloud server; the control of the photovoltaic bracket parameters comprises tracking control and protection strategy control; the data acquisition module is used for acquiring perception information of the photovoltaic power generation end, wherein the perception information comprises wind speed, wind direction, irradiation, temperature and humidity, audio frequency, video information and generating capacity information;
the photovoltaic bracket further comprises a photovoltaic panel installation frame and a support frame, wherein the support frame comprises hollow support arms which are respectively arranged at two ends of the photovoltaic panel installation frame, the transverse central line of the photovoltaic panel installation frame is rotatably communicated with the hollow support arms through a hollow shaft, the bottom of the support frame is rotatably connected with a support rod, the support rod is a hollow rod, and the bottom end of the support rod is connected with an embedded pipeline which is buried underground; the photovoltaic panel installation frame comprises a rectangular shell, the hollow shafts are communicated with the rectangular shell, a channel is respectively extended inwards from the hollow shafts corresponding to the two sides of the rectangular shell, the outlet end of the channel is positioned at the lower end of the rectangular shell, and an exhaust fan is arranged at the outlet end of the channel; when the photovoltaic panel is placed in the photovoltaic panel mounting frame, the back surface of the photovoltaic panel is covered on the channel;
and the embedded pipeline, the support rod, the hollow support arm, the hollow shaft and the channel are communicated to form a cooling channel for air circulation.
In the above scheme, the data acquisition module comprises an image acquisition unit, wherein the image acquisition unit is used for determining the angle position information of the photovoltaic bracket according to a shot photo, and the shot photo comprises side images of a plurality of photovoltaic brackets; and the image acquisition unit calculates corresponding angle position information according to the outline of the support in the side image of each photovoltaic support.
In the above scheme, the side of the photovoltaic support corresponds to the shooting area of the image acquisition unit, and a contour line is marked in the contour length direction of the side of the photovoltaic support, the contour line comprises a vertical support rod of the photovoltaic support and a contour line of the side of the photovoltaic panel installation frame, and the image acquisition unit further calculates the angle position information of the photovoltaic support according to the contour line in the side image.
In the scheme, the channels on two sides of the rectangular shell are arranged in the rectangular shell in a square wave shape and are close to the vertical central line of the rectangular shell.
In the above scheme, the system further includes a key generation module, where the key generation module is disposed at the photovoltaic power generation end and is configured to generate a root key file, and distribute the generated root key file to the cloud server and the edge side control module, where the root key file is used to encrypt the historical data.
In the above scheme, the transmission process of the history data includes:
the edge side control module acquires an encryption key file with equal length from the root key file according to the length of the historical data, and encrypts the historical data through the encryption key file to obtain ciphertext data; the encryption key file is determined through index information generated by the cloud server before the historical data is transmitted, and the index information is used for indicating the position information of the encryption key file in the root key file;
the edge side control module transmits the ciphertext data to the cloud server;
and the cloud server determines the encryption key file from root key files stored in the cloud server according to the generated index information, so as to decrypt the ciphertext data.
In the above scheme, the index transmission process includes:
the edge side control module pre-generates a communication key, sends a data transmission request to the cloud server, and carries the length information of the data to be sent and the communication key in the request;
the cloud server responds to the data transmission request, generates index information of an encryption key file for the data transmission, encrypts the index information by using the communication key to form encryption index information, and then sends the encryption index information to the edge side control module;
the edge side control module decrypts the encryption index information acquired from the cloud server by utilizing the pre-generated communication key
Compared with the prior art, the invention has the following advantages: according to the scheme, the model is trained on the cloud server side, the model is optimized by utilizing the relatively stronger data processing capacity of the model, and the continuously optimized model is transmitted to the edge side control module, so that the continuously optimized model can be used for calling and controlling parameters of the photovoltaic bracket in real time, and particularly continuous optimization and improvement of a tracking strategy are carried out; in addition, the cloud training and model lowering, and the control model real-time calculation is called by the local edge side control module, so that the time delay of control data transmission is reduced compared with the cloud side real-time calculation processing; in addition, the photovoltaic bracket is further improved, and the embedded pipeline buried under the ground is communicated with the supporting rod, the hollow supporting arm, the hollow shaft and the channel of the photovoltaic bracket, so that a cooling channel for air circulation is formed, the heat dissipation effect of the photovoltaic bracket is enhanced, and the working stability of the photovoltaic panel is improved.
Drawings
FIG. 1 is a system architecture diagram in example 1 of the present application;
FIG. 2 is a system architecture diagram in example 4 of the present application;
FIG. 3 is a flowchart of a history data transmission process in embodiment 4 of the present application;
fig. 4 is a schematic structural diagram of a photovoltaic bracket in embodiment 3 of the present application;
fig. 5 is a side view of fig. 4.
Detailed Description
The present invention will be further elucidated with reference to the following embodiments, which should be understood as merely illustrative of the invention and not as limiting the scope of the invention. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
Example 1: a photovoltaic bracket control system based on cloud edge cooperation comprises a cloud server, an edge side control module and a data acquisition module; the cloud server is used for training a model according to historical data, issuing a trained control model file to the edge side control module and deploying the control model; the model building and training method can use the prior art, such as astronomical algorithm (Solar Position Algorithm, SPA), support Vector Machine (SVM), dual-Axis Tracking (DAT) and other model building and training methods; the cloud server can further use cloud services provided by the existing commercial cloud computing providers to reduce the construction difficulty; the edge side control module has certain processing and calculating capacity and can use a calculation and processing module based on ARM/X86; the data acquisition module comprises a wind speed sensor, a wind direction sensor, an irradiation sensor, a temperature and humidity sensor, a radio device (used for acquiring audio), a camera (used for acquiring video information) and an output power module (used for acquiring generating capacity information);
the edge side control module and the data acquisition module are both positioned at the photovoltaic power generation end; the edge side control module is used for calling a control model to control parameters of the photovoltaic bracket and transmitting historical data to the cloud server; the control of the photovoltaic bracket parameters comprises tracking control and protection strategy control; the data acquisition module is used for acquiring perception information of the photovoltaic power generation end, wherein the perception information comprises wind speed, wind direction, irradiation, temperature and humidity, audio frequency, video information and generating capacity information.
In one possible embodiment: building a Dual-Axis Tracking (DAT) model on a cloud server;
the edge side control module receives the perception information of the photovoltaic power generation end acquired by the data acquisition module, generates historical data according to the perception information of the photovoltaic power generation end, and transmits the historical data to the cloud server; the historical data is the perception information of the photovoltaic power generation end, which is acquired by a data acquisition module and stored by an edge side control module, for example, at a certain moment, the edge side control module firstly calls a control model-Dual-Axis Tracking (DAT) model which is deployed on the edge side control module according to the perception information of the photovoltaic power generation end, which is acquired by the data acquisition module, calculates and outputs the control parameters of the photovoltaic support, then adjusts the photovoltaic support according to the control parameters, for example, the adjustment of the inclination angle of the photovoltaic support, and meanwhile, the edge side control module further stores the perception information acquired at the previous moment and sends the perception information to a cloud server as the historical information for model training; corresponding angle control and calibration mechanisms can be arranged on the photovoltaic support, such as an inclination angle calibration system of the photovoltaic tracking support and a photovoltaic support structure in the photovoltaic tracking support disclosed in patent text of China patent application No. CN 202310875355.4;
the cloud server trains the model according to the historical data, and issues a trained control model file to the edge side control module to deploy the control model;
and the edge side control module calls a control model to control parameters of the photovoltaic bracket.
Training a model at a cloud server side, optimizing the model by utilizing relatively stronger data processing capacity of the model, and transmitting the continuously optimized model to an edge side control module so as to carry out real-time calling and controlling of parameters of the photovoltaic bracket, particularly continuous optimization and improvement of a tracking strategy; cloud training and model lowering, and compared with cloud side real-time calculation processing, the control model real-time calculation is called by the local edge side control module, so that the time delay of control data transmission is reduced.
After model selection and training of the cloud server are finished, model deployment can be performed according to a certain strategy, for example, model training files containing model parameters are transmitted to an edge side control module through Modbus ASCII, modbus RTU or Modbus TCP/IP and other protocols at night when the photovoltaic bracket does not work, and the edge side control module replaces old model files according to the received model training files, and then new model files are called for local calculation control at the next work after updating is finished.
Example 2: the data acquisition module further comprises an image acquisition unit, wherein the image acquisition unit is used for determining angle position information of the photovoltaic brackets according to photographed pictures, and the photographed pictures comprise side images of a plurality of photovoltaic brackets; the image acquisition unit calculates corresponding angle position information according to the outline of the support in the side image of each photovoltaic support; the image acquisition unit can use the existing industrial ccd camera, and in order to reduce the use cost of equipment, such as acquisition of the angle position of the photovoltaic panel, in the traditional scheme, an inclination sensor needs to be installed on each photovoltaic power generation panel; when the number of the photovoltaic power generation plates is large, the number of sensors of the whole system is large, and the installation and use cost of equipment is relatively high; therefore, the side edges of the photovoltaic brackets can be shot through the image acquisition unit at the same time, and the angle position information of the photovoltaic brackets in the image is calculated through an image processing algorithm, so that the equipment installation and use cost is reduced;
in order to facilitate calculation and identification of the position of an outline of an image in a picture, the side edge of the photovoltaic bracket corresponds to a shooting area of the image acquisition unit, an outline is marked in the outline length direction of the side edge of the photovoltaic bracket, the outline comprises an outline of a vertical support rod of the photovoltaic bracket and the side edge of a photovoltaic panel installation frame, and the image acquisition unit further calculates angle position information of the photovoltaic bracket according to the outline in the side edge image; the specific contour line can be marked by adopting green, and the image acquisition unit calculates the angle information of the green contour line according to a preset algorithm after acquiring the picture; the processing and calculating step adopts the existing method, such as the following steps:
image preprocessing: firstly converting an image into a gray level image, and then detecting the outline in the image by using an edge detection algorithm (such as Canny, sobel and the like);
contour extraction: extracting an object contour in an image by using an image segmentation or contour detection algorithm;
calculating a contour angle: regarding the extracted contour as a geometric shape, the angle of its principal axis can be calculated by fitting a rectangular frame or using Principal Component Analysis (PCA); if rectangular box fitting is used, the angle can be calculated by atan2 (y, x), where x and y are the two endpoints of the rectangular box diagonal; if PCA is used, then the principal axis of the object is the first principal component of the data point, and the corresponding angle can also be calculated using atan 2.
Example 3: the photovoltaic bracket further comprises a photovoltaic panel installation frame 100 and a supporting frame 200, wherein the supporting frame 200 comprises hollow supporting arms 201 which are respectively arranged at two ends of the photovoltaic panel installation frame 100, the transverse central line of the photovoltaic panel installation frame 100 is rotatably communicated with the hollow supporting arms 201 through a hollow shaft 202, the photovoltaic panel installation frame is particularly connected with the hollow supporting arms by using an H-shaped rotary joint, the bottom of the supporting frame 200 is rotatably connected with a supporting rod 300, the supporting rod 300 is a hollow rod, and the bottom end of the supporting rod 300 is connected with an embedded pipeline 400 which is buried underground; the photovoltaic panel installation frame 100 comprises a rectangular casing 101, the hollow shafts 202 are communicated with the rectangular casing 101, a channel 102 is respectively and inwards extended from the hollow shafts 202 corresponding to the two sides of the rectangular casing 101, the outlet ends of the channel 102 are positioned at the lower end of the rectangular casing 101, the channels 102 positioned at the two sides of the rectangular casing 101 are arranged in the rectangular casing 101 in a square wave shape and are close to the vertical central line of the rectangular casing 101, so that the whole rectangular casing 101 is fully distributed, and an exhaust fan (not shown in the figure) is arranged at the outlet ends of the channels 102;
when a photovoltaic panel is placed in the photovoltaic panel mounting frame 100, the back of the photovoltaic panel is covered on the channel 102;
the embedded pipeline 400, the support rod 300, the hollow support arm 201, the hollow shaft 202 and the channel 102 are communicated to form a cooling channel for air circulation;
heat is inevitably generated in the process of generating electricity by the photovoltaic panel, and when the external temperature is high, the accumulation of the heat can affect the electricity generation efficiency of the photovoltaic panel, in the embodiment, the embedded pipeline 400 is embedded underground in advance when the photovoltaic bracket is installed, and one end of the pipeline is led out to the upper part of the ground to serve as an air inlet; when the outside air temperature is high, the buried pipeline 400 under the ground can keep a relatively low temperature; an exhaust fan arranged at the outlet end of the channel 102 works among the embedded pipeline 400, the support rod 300, the hollow support arm 201, the hollow shaft 202 and the channel 102 to form air flow, and air with relatively low temperature in the embedded pipeline 400 is led out to the rectangular shell 101 to play a role in heat dissipation; in practice, the outside of the support rod 300 and the hollow support arm 201 may be further covered with a heat insulating sleeve to avoid the air in the pre-buried pipe 400 from passing through the two as much as possible.
Example 4: in order to protect the security of the sensitive data acquired by the data acquisition module and reduce the possibility of leakage, the system further comprises a key generation module, wherein the key generation module is deployed at a photovoltaic power generation end and is used for generating a root key file and distributing the generated root key file to the cloud server and the edge side control module, the root key file is used for encrypting the historical data, and an exclusive OR algorithm can be adopted for a specific encryption algorithm;
the key generation module can use a random number file generated by the quantum random number generator as a root key file; the quantum random number generator generates quantum random numbers based on an amplified spontaneous emission mechanism, and compared with random numbers generated by an algorithm, the random numbers generated by the quantum random number generator have the characteristics of unpredictability and unrepeatability, so that the random numbers are difficult to crack and imitate, and the security of encrypted data is higher; the structure of the quantum random number generator can be specifically referred to a quantum random number generator based on amplified spontaneous emission disclosed in the patent application text of Chinese patent application No. CN201620510840.7, and mainly comprises: the device comprises a super-radiation light-emitting module, a light receiving module and a data acquisition and processing module; the emitting end of the super-radiation light-emitting module is connected with the input end of the light-receiving module, and the output end of the light-receiving module is connected with the receiving end of the data acquisition and processing module; the super-radiation light-emitting module comprises a super-radiation light-emitting diode and a filter; the light receiving module comprises one or more light receiving units, the filters are in one-to-one correspondence with the light receiving units, and each light receiving unit is connected with the super-radiation light emitting diode through a parallel filter. The quantum random number generator in the scheme generates a digital signal by rapidly and simply identifying the optical signal intensity based on the spontaneous radiation quantum physical random process, and random numbers are randomly extracted through strict quantum entropy, so that the quantum random number generator has the characteristics of high integration, low cost and high speed; for another example, a quantum random number generator commercially available under the model QRNG-200 is based on an Amplified Spontaneous Emission (ASE) mechanism.
In one possible embodiment:
the transmission process of the historical data comprises the following steps:
s101: the key generation module pre-generates a root key file and distributes the root key file to the cloud server and the edge side control module so that the cloud server and the edge side control module share the same root key file;
s102: before transmitting the historical data, the edge side control module pre-generates a communication key; transmitting a data transmission request to the cloud server, wherein the request carries length information of data to be transmitted and a communication key; the communication key can be specifically generated in real time through a key generation module;
s103: the cloud server responds to the data transmission request, generates index information of an encryption key file for the data transmission, encrypts the index information by using the communication key to form encryption index information, and then sends the encryption index information to the edge side control module;
in one example, the cloud server sequentially selects a random number file with a corresponding length from the root key files stored in the cloud server according to the length information of the transmitted data as an encryption key for the communication, the key is invalidated and is not used next time after each use, and position information of the selected encryption key in the root key file is generated, for example, 1 st to 128 th bits in the root key file are selected as encryption keys for encryption, namely index information;
s104: the edge side control module decrypts the encryption index information acquired from the cloud server by utilizing the pre-generated communication key;
s105: the edge side control module determines an encryption key file used for encryption from the root key file according to the acquired index information, and encrypts the historical data through the encryption key file to obtain ciphertext data; transmitting the ciphertext data to the cloud server;
s106: the cloud server determines the encryption key file from the root key file stored in the cloud server according to the generated index information, so as to decrypt the ciphertext data;
in the process of the historical data transmission, the historical data is transmitted in an encryption mode; the secret key for encryption is generated by a true random number generator, and the generation of the secret key is difficult to crack and imitate; meanwhile, before the historical data are transmitted between the cloud server and the edge side control module, the cloud server determines the encryption key, and confirms the encryption key in an index mode, the encryption key is not directly transmitted, the transmitted index is encrypted, the encryption key is difficult to intercept, and the overall safety is higher.
Example 5: the edge side control module also calls the control model to generate control parameters according to weather prediction data so as to control the generation of daily initialization parameters of the photovoltaic bracket; the control module at the edge side of the night can acquire weather prediction data of the next day through a network, and call a locally deployed control model to calculate and generate preset control parameters so as to deploy the parameters of the photovoltaic bracket in advance at the time of the day; for example, the photovoltaic bracket is controlled by using the preset control parameter at 5-6 points in the morning, then the parameter of the photovoltaic bracket is calculated and generated in real time by using the sensing information acquired by the data acquisition module, fine adjustment is performed, and when the weather prediction data and the actually acquired data are not changed greatly, the whole time for adjusting the photovoltaic bracket can be saved.
The technical means disclosed by the scheme of the invention is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (7)
1. Photovoltaic support control system based on cloud limit is cooperated, its characterized in that: the cloud server, the edge side control module and the data acquisition module are included; the cloud server is used for training a model according to historical data, issuing a trained control model file to the edge side control module and deploying the control model;
the edge side control module and the data acquisition module are both positioned at the photovoltaic power generation end; the edge side control module is used for calling a control model to control parameters of the photovoltaic bracket and transmitting historical data to the cloud server; the control of the photovoltaic bracket parameters comprises tracking control and protection strategy control; the data acquisition module is used for acquiring perception information of the photovoltaic power generation end, wherein the perception information comprises wind speed, wind direction, irradiation, temperature and humidity, audio frequency, video information and generating capacity information;
the photovoltaic bracket further comprises a photovoltaic panel installation frame and a support frame, wherein the support frame comprises hollow support arms which are respectively arranged at two ends of the photovoltaic panel installation frame, the transverse central line of the photovoltaic panel installation frame is rotatably communicated with the hollow support arms through a hollow shaft, the bottom of the support frame is rotatably connected with a support rod, the support rod is a hollow rod, and the bottom end of the support rod is connected with an embedded pipeline which is buried underground; the photovoltaic panel installation frame comprises a rectangular shell, the hollow shafts are communicated with the rectangular shell, a channel is respectively extended inwards from the hollow shafts corresponding to the two sides of the rectangular shell, the outlet end of the channel is positioned at the lower end of the rectangular shell, and an exhaust fan is arranged at the outlet end of the channel; when the photovoltaic panel is placed in the photovoltaic panel mounting frame, the back surface of the photovoltaic panel is covered on the channel;
and the embedded pipeline, the support rod, the hollow support arm, the hollow shaft and the channel are communicated to form a cooling channel for air circulation.
2. The photovoltaic bracket control system based on cloud edge cooperation as claimed in claim 1, wherein: the data acquisition module comprises an image acquisition unit, wherein the image acquisition unit is used for determining angle position information of the photovoltaic brackets according to photographed pictures, and the photographed pictures comprise side images of a plurality of photovoltaic brackets; and the image acquisition unit calculates corresponding angle position information according to the outline of the support in the side image of each photovoltaic support.
3. The photovoltaic bracket control system based on cloud edge cooperation as claimed in claim 2, wherein: the side of the photovoltaic support corresponds to the shooting area of the image acquisition unit, an outline is marked in the outline length direction of the side of the photovoltaic support, the outline comprises an outline of a vertical support rod of the photovoltaic support and the side of a photovoltaic panel installation frame, and the image acquisition unit further calculates angle position information of the photovoltaic support according to the outline in the side image.
4. The photovoltaic bracket control system based on cloud edge cooperation as claimed in claim 1, wherein: the channels on two sides of the rectangular shell are arranged in the rectangular shell in a square wave shape and are close to the vertical central line of the rectangular shell.
5. The photovoltaic bracket control system based on cloud edge cooperation as claimed in claim 1, wherein: the system further comprises a key generation module, wherein the key generation module is deployed at the photovoltaic power generation end and is used for generating a root key file and distributing the generated root key file to the cloud server and the edge side control module side, and the root key file is used for encrypting the historical data.
6. The cloud edge collaboration-based photovoltaic bracket control system as defined in claim 5, wherein: the transmission process of the historical data comprises the following steps:
the edge side control module acquires an encryption key file with equal length from the root key file according to the length of the historical data, and encrypts the historical data through the encryption key file to obtain ciphertext data; the encryption key file is determined through index information generated by the cloud server before the historical data is transmitted, and the index information is used for indicating the position information of the encryption key file in the root key file;
the edge side control module transmits the ciphertext data to the cloud server;
and the cloud server determines the encryption key file from root key files stored in the cloud server according to the generated index information, so as to decrypt the ciphertext data.
7. The cloud edge collaboration-based photovoltaic bracket control system as defined in claim 6, wherein: the index transmission process comprises the following steps:
the edge side control module pre-generates a communication key, sends a data transmission request to the cloud server, and carries the length information of the data to be sent and the communication key in the request;
the cloud server responds to the data transmission request, generates index information of an encryption key file for the data transmission, encrypts the index information by using the communication key to form encryption index information, and then sends the encryption index information to the edge side control module;
and the edge side control module decrypts the encryption index information acquired from the cloud server by utilizing the pre-generated communication key.
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