CN113794444A - A method and device for detecting and alarming the cleanliness of photovoltaic panels - Google Patents

A method and device for detecting and alarming the cleanliness of photovoltaic panels Download PDF

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CN113794444A
CN113794444A CN202110841347.9A CN202110841347A CN113794444A CN 113794444 A CN113794444 A CN 113794444A CN 202110841347 A CN202110841347 A CN 202110841347A CN 113794444 A CN113794444 A CN 113794444A
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module
photovoltaic panel
voltage
current
cleanliness
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李宇雷
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Datang Dingbian Wind Power Generation Co ltd
Datang Shaanxi Power Generation Co Ltd
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Datang Dingbian Wind Power Generation Co ltd
Datang Shaanxi Power Generation Co Ltd
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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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B7/00—Signalling systems according to two or more of groups G08B3/00 - G08B6/00
    • G08B7/06—Signalling systems according to two or more of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network
    • H02J13/10—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network characterised by displaying of information or by user interaction, e.g. supervisory control and data acquisition [SCADA] systems
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network
    • H02J13/12—Monitoring network conditions, e.g. electrical magnitudes or operational status
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network
    • H02J13/13—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network characterised by the transmission of data to equipment in the power network
    • H02J13/1331—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network characterised by the transmission of data to equipment in the power network using wireless data transmission
    • H02J13/1335—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network characterised by the transmission of data to equipment in the power network using wireless data transmission involving a local wireless network, e.g. Wi-Fi®, ZigBee® or Bluetooth®
    • 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
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • 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
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

本发明提供一种光伏板清洁度检测与报警方法及装置，装置包括壳体和内置电路、壳体上设的电压测量端口和电流测量端口，所述电压测量端口和电流测量端口通过导线与光伏板的输出线路相连接，所述内置电路包括检测模块、控制处理模块、报警模块、自动启停模块和显示模块，所述检测模块包括光敏传感器、电压传感器、电流传感器，所述自动启停模块包括湿度传感器，所述控制处理模块包括单片机，所述控制处理模块的输出端和报警模块、显示模块连接，所述报警模块包括蜂鸣器和报警灯，所述显示模块包括显示屏。本发明通过实时检测光照强度、光伏板的实时发电的电压和电流监测光伏板清洁度，极大的提高了工作效率，通过自动启停模块保证了整个装置的安全。

Figure 202110841347

The invention provides a method and device for detecting and alarming the cleanliness of a photovoltaic panel. The device includes a casing and a built-in circuit, a voltage measurement port and a current measurement port provided on the casing, and the voltage measurement port and the current measurement port are connected to the photovoltaic panel through wires The built-in circuit includes a detection module, a control processing module, an alarm module, an automatic start-stop module and a display module. The detection module includes a photosensitive sensor, a voltage sensor, and a current sensor. The automatic start-stop module It includes a humidity sensor, the control processing module includes a single-chip microcomputer, and the output end of the control processing module is connected to an alarm module and a display module, the alarm module includes a buzzer and an alarm lamp, and the display module includes a display screen. The invention monitors the cleanliness of the photovoltaic panels by real-time detection of the light intensity, the voltage and current of the real-time power generation of the photovoltaic panels, greatly improves the work efficiency, and ensures the safety of the entire device through the automatic start-stop module.

Figure 202110841347

Description

Photovoltaic panel cleanliness detection and alarm method and device
Technical Field
The invention belongs to the technical field of maintenance of photovoltaic power generation equipment, and particularly relates to a method and a device for detecting and alarming cleanliness of a photovoltaic panel.
Background
Solar energy is a renewable novel energy source, is inexhaustible, does not produce waste materials in solar power generation, and has no influence on the environment, so that the development of photovoltaic power generation is rapid in recent years. In photovoltaic power generation, how to detect the cleanliness of a photovoltaic panel is still a problem at present. The cleanness of the surface of the photovoltaic power generation board is not enough, if the photovoltaic power generation board is not cleaned in time, the power generation efficiency of the photovoltaic power generation board is seriously influenced, but the cleaning is frequent, the gain brought by the generated energy is possibly less than the cleaning cost, or the gain is less, so that the determination of the cleaning time is crucial; taking a 10-kilowatt photovoltaic power station as an example, annual power generation is at 1.6 million degrees, and as dust affects 5% of power generation, 800 ten thousand degrees of electricity are lost in one year, which is equivalent to 280 ten thousand yuan of economic loss. Therefore, the cleaning work of the photovoltaic panel is significant, but when the photovoltaic panel needs to be cleaned, the existing technology for detecting the cleanliness of the photovoltaic panel mainly depends on manual detection, the detection mode is time-consuming and labor-consuming, the floor area of a general photovoltaic power plant is large and is generally in the area of thousands of acres, so that the detection by the manual detection is very inconvenient, and the traditional manual detection depends on naked eye identification, so that the detection quality is not high; therefore, it is necessary to invent a device for detecting and alarming the cleanliness of a photovoltaic panel to improve the current situation.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a method and a device for detecting and alarming the cleanliness of a photovoltaic panel, which have the advantages of compact structure, convenience in installation and strong reliability.
The technical scheme of the invention is as follows: a method for detecting and alarming cleanliness of a photovoltaic panel comprises the following steps:
s1: acquiring data, namely acquiring real-time illumination intensity in a working environment of the photovoltaic panel and real-time generated voltage and current of the photovoltaic panel;
s2: data analysis processing, namely comparing the data obtained in the step S1 with the voltage and current minimum values of the photovoltaic panel power generation corresponding to different illumination intensities in a standard environment, and if the power generation voltage and current of the photovoltaic panel are lower than the set minimum values, indicating that the cleanliness of the photovoltaic panel is not enough and the photovoltaic panel needs to be cleaned;
s3: data display and alarm reminding, namely displaying the data and results obtained in S1 and S2 so as to be convenient for the operation and inspection personnel to check, and simultaneously controlling and starting an alarm module to remind the personnel;
preferably, the whole process of data acquisition, data analysis and processing, data display and alarm reminding further comprises automatic start and stop of the device, the humidity of the working environment is detected by using a humidity sensor, when the humidity reaches a preset input threshold value of the humidity in rainy days, the whole device is in a dormant state, the detection is stopped, and when the humidity reaches a working value, the whole device automatically releases the dormancy and returns to the working state.
Preferably, still include when data display and warning remind and transmit data to the user side, the user side includes power plant master control room and/or staff's cell-phone, and the master control room staff shows through looking over the master control room, and other personnel can look over in real time and know the photovoltaic board condition through looking over the notice information on the cell-phone.
A device for detecting and alarming the cleanliness of a photovoltaic panel comprises a shell and a built-in circuit, wherein a voltage measuring port and a current measuring port are arranged on the shell, the voltage measuring port and the current measuring port are connected with an output circuit of the photovoltaic panel through leads and are used for measuring real-time voltage and current output by the photovoltaic panel, the built-in circuit comprises a detection module, a control processing module, an alarming module, an automatic start-stop module and a display module, the detection module comprises a photosensitive sensor, a voltage sensor and a current sensor, the photosensitive sensor can detect the illumination intensity in the working environment of the photovoltaic panel in real time and transmit the illumination intensity to the control processing module through digital signals, the voltage sensor and the current sensor are respectively and electrically connected with the voltage measuring port and the current measuring port, and the voltage and the current which can detect real-time power generation of the photovoltaic panel are transmitted to the control processing module after being converted by an A/D conversion module, the automatic start-stop module comprises a humidity sensor, the humidity sensor transmits detected humidity data to the control processing module, when the humidity detected by the humidity sensor reaches a humidity threshold value of rainy days input in the control processing module in advance, the whole device is in a dormant state, the detection is stopped, and when the humidity reaches a working value, the whole device automatically releases the dormancy and returns to the working state; the control processing module comprises a singlechip which transmits data back from the photosensitive sensor, the voltage sensor and the current sensor, comparing the generated voltage and current of the photovoltaic panel corresponding to different illumination intensities in a standard environment input in the singlechip in advance with the minimum value of the generated voltage and current of the photovoltaic panel, if the generated voltage and current of the photovoltaic panel are lower than the set minimum value, the cleanness of the photovoltaic panel is not enough, the photovoltaic panel needs to be cleaned, the output end of the control processing module is connected with the alarm module and the display module, the alarm module comprises a buzzer and an alarm lamp, the display module comprises a display screen, the control processing module controls the buzzer and the alarm lamp circuit to be connected when detecting that the photovoltaic panel needs to be cleaned, through buzzer sound production and alarm lamp scintillation, remind the staff, the display screen is given in the simultaneous transmission, makes things convenient for the fortune to examine personnel and looks over.
Preferably, still include the WIFI module, the data transmission between singlechip and the user side is realized to the WIFI module, and the numerical value that will detect passes back the user side in real time, if the cleanliness does not reach standard, has corresponding suggestion on the user side, very big improvement work efficiency.
Preferably, the user side is a power plant main control room and/or a mobile phone of a worker.
Preferably, still include power module, power module and detection module, control processing module, alarm module, automatic start-stop module, display module, WIFI module electric connection open, provide required power for it.
Preferably, the model of the WIFI module is ESP 8266.
Preferably, the model of the single chip microcomputer is STC89C 52.
The invention has the advantages that: the invention detects the cleanliness of the photovoltaic panel by transmitting the illumination intensity acquired by the detection module and the voltage and current data generated by the photovoltaic panel in real time to the singlechip and comparing the data with the pre-input standard data, if the acquired illumination intensity and the voltage and current data generated by the photovoltaic panel in real time are lower than the pre-input standard values, the cleanliness of the photovoltaic panel is not enough, the power generation efficiency is affected, the cleaning is needed, the display screen displays the detection result, and the alarm module gives an alarm prompt, the detected value is transmitted back to the user end through the WIFI module for real-time prompt, the working efficiency is greatly improved, the labor power and the detection cost are saved, the humidity of the working environment is detected through the humidity sensor to control the automatic start and stop of the whole device, when the humidity detection module detects that the humidity exceeds the preset threshold value in rainy days, the whole device is in a dormant state, the detection is stopped, when the humidity is reduced to be below the preset working value, the whole device can be in a dormant state and returns to a working state, the safety of the whole device is guaranteed, and meanwhile the working accuracy is improved.
Drawings
FIG. 1 is a schematic block diagram of the principle of a photovoltaic panel cleanliness detection and alarm device of the present invention;
FIG. 2 is a schematic diagram of a control circuit of the device for detecting and alarming cleanliness of a photovoltaic panel according to the present invention;
wherein: 1. singlechip, 2, humidity transducer, 3, AD conversion module, 4, voltage measurement port, 5, current measurement port, 6, current sensor, 7, LCD1602 display screen, 8, WIFI module, 9, alarm lamp, 10, bee calling organ, 11, photosensitive sensor.
Detailed Description
The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which a person skilled in the art can, without any creative effort, fully implement the present invention.
The invention firstly provides a method for detecting and alarming the cleanliness of a photovoltaic panel, which comprises the following steps:
s1: acquiring data, namely acquiring real-time illumination intensity in a working environment of the photovoltaic panel and real-time generated voltage and current of the photovoltaic panel;
s2: data analysis processing, namely comparing the data obtained in the step S1 with the voltage and current minimum values of the photovoltaic panel power generation corresponding to different illumination intensities in a standard environment, and if the power generation voltage and current of the photovoltaic panel are lower than the set minimum values, indicating that the cleanliness of the photovoltaic panel is not enough and the photovoltaic panel needs to be cleaned;
s3: data display and alarm reminding, namely displaying the data and results obtained in S1 and S2 so as to be convenient for the operation and inspection personnel to check, and simultaneously controlling and starting an alarm module to remind the personnel;
preferably, the whole process of data acquisition, data analysis and processing, data display and alarm reminding further comprises automatic start and stop of the device, the humidity of the working environment is detected by using a humidity sensor, when the humidity reaches a preset input threshold value of the humidity in rainy days, the whole device is in a dormant state, the detection is stopped, and when the humidity reaches a working value, the whole device automatically releases the dormancy and returns to the working state.
Preferably, still include when data display and warning remind and transmit data to the user side, the user side includes power plant master control room and/or staff's cell-phone, and the master control room staff shows through looking over the master control room, and other personnel can look over in real time and know the photovoltaic board condition through looking over the notice information on the cell-phone.
Meanwhile, the invention provides a device for detecting and alarming the cleanliness of a photovoltaic panel, which comprises a shell and a built-in circuit, wherein the shell is provided with a voltage measuring port 4 and a current measuring port 5, the voltage measuring port 4 and the current measuring port 5 are connected with an output circuit of the photovoltaic panel through leads and are used for measuring real-time voltage and current output by the photovoltaic panel, the device comprises a detection module, a control processing module, an alarm module, an automatic start-stop module and a display module, the detection module comprises a photosensitive sensor 11, a voltage sensor and a current sensor 6, the photosensitive sensor 11 can detect the illumination intensity in the working environment of the photovoltaic panel in real time and transmit the illumination intensity to the control processing module through digital signals, and the voltage sensor and the current sensor 6 are respectively and electrically connected with the voltage measuring port 4 and the current measuring port 5, the voltage and current capable of detecting real-time power generation of the photovoltaic panel are converted by the A/D conversion module 3 and then transmitted to the control processing module, the automatic start-stop module comprises a humidity sensor 2, the humidity sensor 2 transmits detected humidity data to the control processing module, when the humidity sensor 2 detects that the humidity reaches a humidity threshold value input in the control processing module in advance in rainy days, the whole device is in a dormant state, detection is stopped, and when the humidity reaches a working value, the whole device automatically releases the dormancy and returns to the working state; the control processing module comprises a singlechip 1, the singlechip 1 compares data transmitted back by a photosensitive sensor 11, a voltage sensor and a current sensor 6 with the voltage and the minimum current of the photovoltaic panel corresponding to different illumination intensities in a standard environment input in the singlechip 1 in advance, if the generated voltage and the generated current of the photovoltaic panel are lower than the set minimum value, the cleanness of the photovoltaic panel is not enough and the photovoltaic panel needs to be cleaned, the output end of the control processing module is connected with an alarm module and a display module, the alarm module comprises a buzzer 10 and an alarm lamp 9, the display module comprises a display screen 7, the control processing module controls to switch on the circuit of the buzzer 10 and the alarm lamp 9 when detecting that the photovoltaic panel needs to be cleaned, the buzzer 10 sounds and the alarm lamp 9 flickers to remind a worker, and simultaneously transmits the data to the display screen 7, the operation and inspection personnel can conveniently check.
Preferably, still include WIFI module 8, WIFI module 8 realizes the data transmission between singlechip 1 and the user side, transmits the numerical value that detects back the user side in real time, if the cleanliness does not reach standard, has corresponding suggestion on the user side, very big improvement work efficiency.
Preferably, the user side is a power plant main control room and/or a mobile phone of a worker.
Preferably, still include power module, power module and detection module, control processing module, alarm module, automatic start-stop module, display module, WIFI module 8 electric connection open, provide required power for it.
Referring to fig. 2, the internal circuit connection diagram is shown.
A display circuit: the display module is an LCD1602 display screen and can display the illumination intensity and the power numerical value of the photovoltaic panel in real time, and a user can conveniently adjust the working temperature of the radiator and the refrigerator through keys.
WIFI module circuit: the WIFI module 8 is an ESP8266WIFI module, and can wirelessly transmit measured values of illumination intensity, voltage and current to a main control room or a mobile phone of a related person.
The sound-light alarm circuit: the alarm module is controlled by the P1^0 port of the single chip microcomputer 1, and when the alarm module needs to be switched on, the P1^0 port of the single chip microcomputer controls and switches on the PNP triode, so that the circuit of the alarm module is switched on.
Photosensitive detection circuit: the photosensitive sensor 11 transmits the detected illumination intensity data to the singlechip 1 for processing through a P3^2 port of the singlechip 1.
A voltage detection circuit: the voltage sensor transmits the acquired voltage to the singlechip 1 through the A/D conversion module 3, and is connected with the P1^6 of the singlechip 1.
The current detection circuit: the current signal acquisition circuit adopts a current sensor 6 of an ACS712-05 chip based on the Hall sensing principle, is connected with a P1^7 of the single chip microcomputer 1, consists of an accurate low-offset linear Hall sensor circuit and a copper foil close to the surface of an IC, generates a magnetic field when current flows through the copper foil, a Hall element induces a linear voltage signal according to the magnetic field, and outputs a voltage signal through an internal amplifying, filtering, chopping and correcting circuit, and the signal is output from an OUT pin of the chip and directly reflects the current magnitude of the current flowing through the copper foil.
An A/D conversion circuit: a PCF8591 chip adopting an 8-bit CMOS data acquisition device is provided with 4-path analog input and 1-path analog output and a serial I2C bus interface for communicating with a singlechip, and the circuit converts a current signal and a voltage signal and then transmits the converted signals to the singlechip 1.
Humidity detection circuit: the humidity sensor 2 is connected with a P1^5 pin of the singlechip 1, and transmits the collected data to the singlechip for processing.
The working process of the circuit is as follows: the storage battery is used as a power supply module for supplying power, after the whole device is powered on, each module and circuit on the device start to work, the voltage sensor and the current sensor 6 transmit the acquired voltage and current signals to the singlechip 1 for processing through the ports P1^6 and P1^7 after passing through the A/D conversion module 3, and the singlechip 1 is STC89C52 in model number; the photosensitive sensor 11 transmits the collected illumination intensity signal to the singlechip 1 for processing through a P3^2 port of the singlechip 1, the singlechip 1 compares the voltage and current data collected under the illumination intensity with the voltage and current data collected in a standard environment under the illumination intensity, if the actual data is lower than the data under the standard environment, the cleanliness of the photovoltaic panel does not reach the standard, the photovoltaic panel needs to be cleaned, at the moment, the singlechip 1 controls a P1^0 port to be connected with an acousto-optic alarm circuit, a buzzer 10 and an alarm lamp 9 are used for reminding workers to clean the photovoltaic panel, the voltage and current values under different illumination intensities in the standard environment are input into the singlechip 1 through a program, the data collected by the photosensitive sensor 11, the voltage sensor and the current sensor 6 are processed by the singlechip 1, on one hand, the data pass through the P0^0 of the singlechip 1, the P0^1, P0^4 and P2 mouth show data on LCD1602 display screen 7, on the other hand pass through P3^0 and P3^1 mouth of singlechip 1 through ESP8266WIFI module 8, long-range data pass to the control room or staff's cell-phone on, humidity transducer 2 passes through the P1^5 port of singlechip 1 with data give singlechip 1 and handle, when the data that humidity transducer 2 detected is higher than the threshold value of humidity that sets for, whole circuit is in the sleep state, when data is less than the threshold value that sets for, whole device begins work.
While the preferred embodiments of the invention have been described, it is to be understood that the invention is not limited to the precise embodiments described, and that equipment and structures not described in detail are understood to be practiced as commonly known in the art; any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention by those skilled in the art can be made without departing from the technical scope of the present invention, and still fall within the protection scope of the technical solution of the present invention.

Claims (7)

1. A method for detecting and alarming cleanliness of a photovoltaic panel is characterized by comprising the following steps:
s1: acquiring data, namely acquiring real-time illumination intensity in a working environment of the photovoltaic panel and real-time generated voltage and current of the photovoltaic panel;
s2: data analysis processing, namely comparing the data obtained in the step S1 with the voltage and current minimum values of the photovoltaic panel power generation corresponding to different illumination intensities in a standard environment, and if the power generation voltage and current of the photovoltaic panel are lower than the set minimum values, indicating that the cleanliness of the photovoltaic panel is not enough and the photovoltaic panel needs to be cleaned;
s3: and data display and alarm reminding, namely displaying the data and results obtained in S1 and S2 for the inspection personnel to view, and simultaneously controlling to start an alarm module to remind the personnel.
2. The method for detecting and alarming the cleanliness of the photovoltaic panel as claimed in claim 1, wherein the steps include automatic start and stop of the device in the whole process of data acquisition, data analysis and processing, data display and alarm reminding, the humidity of the working environment is detected by using a humidity sensor, when the humidity reaches a preset input humidity threshold value in rainy days, the whole device is in a dormant state, the detection is stopped, and when the humidity reaches a working value, the whole device is automatically released from dormancy and returns to the working state.
3. The method for detecting and alarming the cleanliness of the photovoltaic panel as claimed in claim 2, wherein the data display and alarm reminding are performed while data are transmitted to a user side, the user side comprises a mobile phone of a main control room of the power plant and/or staff, the staff in the main control room can check the display of the main control room, and other staff can check and know the condition of the photovoltaic panel in real time by checking notification information on the mobile phone.
4. A device for detecting and alarming the cleanliness of a photovoltaic panel is characterized by comprising a shell and a built-in circuit, wherein a voltage measuring port and a current measuring port are arranged on the shell, the voltage measuring port and the current measuring port are connected with an output circuit of the photovoltaic panel through leads and are used for measuring real-time voltage and current output by the photovoltaic panel, the built-in circuit comprises a detection module, a control processing module, an alarm module, an automatic start-stop module and a display module, the detection module comprises a photosensitive sensor, a voltage sensor and a current sensor, the photosensitive sensor can detect the illumination intensity in the working environment of the photovoltaic panel in real time and transmit the illumination intensity to the control processing module through digital signals, the voltage sensor and the current sensor are respectively and electrically connected with the voltage measuring port and the current measuring port, and the voltage and the current which can detect real-time power generation of the photovoltaic panel are transmitted to the control processing module after being converted by an A/D conversion module, the automatic start-stop module comprises a humidity sensor, the humidity sensor transmits detected humidity data to the control processing module, when the humidity detected by the humidity sensor reaches a humidity threshold value of rainy days input in the control processing module in advance, the whole device is in a dormant state, the detection is stopped, when the humidity reaches a working value, the whole device automatically goes out of dormancy and returns to the working state, the control processing module comprises a single chip microcomputer, the single chip microcomputer compares the data transmitted back by the photosensitive sensor, the voltage sensor and the current sensor with the voltage generated by the photovoltaic panel corresponding to different illumination intensities in a standard environment input in the single chip microcomputer in advance, and the minimum value of the current is compared, if the generated voltage and the current of the photovoltaic panel are lower than the set minimum value, the cleanliness of the photovoltaic panel is not enough, and the photovoltaic panel needs to be cleaned, the output end of the control processing module is connected with the alarm module and the display module, the alarm module comprises a buzzer and an alarm lamp, the display module comprises a display screen, the control processing module controls the buzzer and the alarm lamp circuit to be switched on when detecting that the photovoltaic panel needs to be cleaned, the buzzer sounds and the alarm lamp flickers to remind a worker, the display screen is simultaneously transmitted, and the worker can conveniently check the photovoltaic panel.
5. The device for detecting and alarming the cleanliness of the photovoltaic panel as claimed in claim 4, further comprising a WIFI module, wherein the WIFI module is used for realizing data transmission between the single chip microcomputer and the user side and transmitting detected values back to the user side in real time, and if the cleanliness does not meet the standard, the user side is provided with a corresponding prompt, so that the working efficiency is greatly improved.
6. The device for detecting and alarming the cleanliness of the photovoltaic panel as claimed in claim 5, wherein the user side is a mobile phone of a main control room and/or staff of a power plant.
7. The device for detecting and alarming the cleanliness of the photovoltaic panel as recited in claim 6, further comprising a power supply module, wherein the power supply module is electrically connected with the detection module, the control processing module, the alarm module, the automatic start-stop module, the display module and the WIFI module to provide required power supply for the detection module, the control processing module, the alarm module, the automatic start-stop module and the display module.
CN202110841347.9A 2021-07-26 2021-07-26 A method and device for detecting and alarming the cleanliness of photovoltaic panels Pending CN113794444A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117200329A (en) * 2023-11-06 2023-12-08 广州菲利斯太阳能科技有限公司 An off-grid power generation and energy storage power supply system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117200329A (en) * 2023-11-06 2023-12-08 广州菲利斯太阳能科技有限公司 An off-grid power generation and energy storage power supply system
CN117200329B (en) * 2023-11-06 2024-03-22 广州菲利斯太阳能科技有限公司 Off-grid power generation, energy storage and power supply system

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