Solar photovoltaic panel fault automatic alarm device

Abstract

The invention discloses a solar photovoltaic panel fault automatic alarm device, and relates to the technical field of solar photovoltaic panels, the solar photovoltaic panel fault automatic alarm device comprises a photovoltaic panel, a patrol frame is erected above the photovoltaic panel, the inner wall of the patrol frame is fixedly connected with a track rack, the patrol frame is provided with a troubleshooting part, and the troubleshooting part comprises an assembly shell. When the thermal imager performs normal inspection, the transparent ring is in a red light flickering state, simulates flickering of an alarm lamp and prompts the device to perform inspection, and when the thermal imager detects that the temperature of the photovoltaic panel is abnormal, the electromagnetic pusher is started at the moment, and the thermal imager performs reinspection in a decelerating return mode. The warning lamp row gradually approaches to the horizontal state from the inclined state until the inclination angle reaches the minimum state, most of emitted red warning light faces upwards at the moment, and therefore the top of the transparent ring can emit an upward red light beam which is different from the circumferential red flickering state, and the device is prompted to conduct reinspection.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of solar photovoltaic panels, in particular to a solar photovoltaic panel fault automatic alarm device. BACKGROUND

[0002] With the progress of science and technology and the vigorous development of new energy power generation industry in China, solar photovoltaic power generation has become one of the core technologies in the field of clean energy, which converts light energy into direct current through photovoltaic panel components exposed to sunlight, has the remarkable characteristics of no pollution and high power generation efficiency; the performance and operating efficiency of the photovoltaic panel directly determine the overall power generation effect of the photovoltaic power generation system, in order to improve the operating efficiency and safety of the photovoltaic panel, regular fault troubleshooting work needs to be carried out; The traditional fault troubleshooting method relies on multiple fixed-point temperature sensors installed on the back side of the photovoltaic panel to monitor its operating state, and if the temperature is abnormal, an alarm will be triggered, but this method requires multiple temperature control sensors for a single photovoltaic panel, resulting in high cost, and a fault detection scheme has been proposed in the prior art, which uses a thermal imager to regularly patrol to balance the contradiction between the economy of fault troubleshooting and the time-consuming and laborious problem of manual inspection, however, although such a thermal imaging inspection device improves detection efficiency, it still has deficiencies in the accuracy of fault identification and the intelligence of alarm response, and the function is relatively single, which needs to be further optimized. SUMMARY

[0003] The purpose of the present application is to provide a solar photovoltaic panel fault automatic alarm device, which has high detection accuracy and strong alarm promptness, and solves the problems mentioned in the background technology.

[0004] To achieve the above purpose, the present application provides the following technical scheme: a solar photovoltaic panel fault automatic alarm device, comprising a photovoltaic panel, a patrol frame is arranged above the photovoltaic panel, a rail rack is fixedly connected to the inner wall of the patrol frame, a fault troubleshooting component is arranged on the patrol frame, the fault troubleshooting component comprises an assembly shell, a moving gear cooperating with the rail rack is arranged at the bottom of the assembly shell, a thermal imager is fixedly installed on the surface of the assembly shell through a mounting bracket, and a warning light row is arranged on the assembly shell. The fault troubleshooting component further comprises a cruising component, an alarm component and a correction component, the cruising component is arranged to drive the thermal imager to move through the rotation of the moving gear, and when the thermal imager finds an abnormal condition, the moving gear is controlled to rotate in reverse at a slower speed, the alarm component is arranged to rotate the warning light row in a circle when the thermal imager moves, and when the moving gear rotates in reverse at a slower speed, the warning light row switches the direction and stops rotating, and the correction component is arranged to correct the temperature data collected by the thermal imager during the movement detection, so that the detected temperature is more consistent with the actual temperature of the photovoltaic panel.

[0005] Optionally, the correction component comprises a collection component and a processing component, the collection component provides the processing component for data processing after completing data collection.

[0006] Optionally, the cruise component comprises a motor, a shell is fixedly connected to the surface of the motor, the shell is slidingly connected to the inner wall of the assembly shell, an electromagnetic pusher is fixedly connected to the inner wall of the assembly shell, the output end of the electromagnetic pusher is fixedly connected to the surface of the shell, the output end of the motor is fixedly connected with a disc, the inner wall of the disc is fixedly connected with an inner tooth ring and an inner gear respectively, the outer wall of the disc is fixedly connected with an outer tooth ring, a moving shaft is rotatably connected to the inner wall of the assembly shell, the moving gear is fixedly connected to the end of the moving shaft, the end of the moving shaft close to the disc is fixedly connected with an assembly gear.

[0007] Optionally, the alarm component comprises an alarm gear, the side wall of the assembly shell is provided with an opening for the outer tooth ring to extend out, the inner wall of the alarm gear is fixedly connected with a rotating shaft, the teeth of the alarm gear are engaged with the teeth of the outer tooth ring, the rotating shaft is rotatably connected to the inner wall of the assembly shell, the end of the rotating shaft is hingedly connected to the surface of the warning light row, the surface of the warning light row is provided with a sliding groove, the inner wall of the sliding groove is slidingly connected with a sleeve ring, a transmission sleeve is sleeved on the rotating shaft, the surface of the sleeve ring is rotatably connected with the transmission sleeve, the initial state of the warning light row is not parallel to the rotating shaft, and the straight-line distance between the lower end of the warning light row and the rotating shaft is farther than that between the upper end of the warning light row and the rotating shaft, the surface of the transmission sleeve is fixedly connected with a transmission rod group, the transmission rod group is vertically slidingly connected to the inner wall of the assembly shell, two inner walls of the transmission rod group are provided with two inclined grooves, the inner walls of the two inclined grooves are slidingly connected with a fixed shaft group, and the fixed shaft group is fixedly connected to the surface of the shell.

[0008] Optionally, the collection component comprises a posture sensor installed on the assembly shell, a temperature sensor installed below the photovoltaic panel, a current sensor and a voltage sensor arranged at the output end of the photovoltaic panel, and a solar irradiance sensor installed around the photovoltaic panel and maintaining the same inclination angle with the photovoltaic panel.

[0009] Optionally, the specific processing process of the processing component is as follows: ; wherein T corr is the actual temperature of the photovoltaic panel after correction; ε set is the set emissivity of the thermal imager; ε actual is the actual emissivity of the photovoltaic panel; θ is the observation angle; T thermoFor thermal imager to detect temperature; T env For ambient air temperature; Delta T clean For dust heat accumulation correction term; ; Wherein T threshold Dynamic temperature threshold value, when S is 1, then it is considered as a fault state, when S is 0, then it is considered as normal state.

[0010] Optionally, the bottom surface of the assembly shell is provided with a moving roller, and the size of the moving roller is adapted to the size of the patrol frame.

[0011] Optionally, the surface of the assembly shell is fixedly connected with a transparent ring, and the size of the transparent ring is adapted to the size of the warning light row.

[0012] Compared with the prior art, the beneficial effects of the present application are as follows: Firstly, the present application moves the thermal imager by cooperating the moving gear with the rack, so as to collect the temperature of the photovoltaic panel, and judge whether a fault occurs according to the temperature condition, when the thermal imager detects that the temperature of the photovoltaic panel is abnormal, at this time, the electromagnetic pusher is started, and then the thermal imager returns in the form of deceleration for re-inspection, so that the accuracy of the fault inspection of the photovoltaic panel by the device is higher.

[0013] Secondly, when the thermal imager normally patrols, the red warning light of the warning light row is directed to one side, at this time, the transparent ring will present a red light flashing state, simulating the flashing of the warning light, prompting that the device is being patrolled, when the thermal imager performs re-inspection, at this time, the warning light row will gradually approach from the inclined state to the horizontal state, until the inclination angle reaches the minimum state, at this time, the red warning light is mostly directed upward, so that the top of the transparent ring emits an upward red light beam, which is different from the circumferential red flashing state, prompting that the device is being re-inspected. Considering that the photovoltaic panel is erected in an environment exposed to the outside, open and with certain sunlight irradiation, the device uses the red flashing of the simulated warning light and the continuous irradiation upward as the alarm means in the fault inspection process, which has the characteristics of high recognition, and the maintenance personnel in the area can take corresponding measures according to the alarm condition, compared with the most commonly used ringer type and vibration type alarm reminding means in the prior art, the device is easier for the maintenance personnel to position the eyes in the open environment, and has stronger practical function.

[0014] Thirdly, the application realizes the improvement of detection accuracy in the photovoltaic panel temperature detection system, the radiation rate deviation, the observation angle deviation, the environmental reflection interference and the dust heat accumulation effect are corrected in a unified physical framework, the equivalent radiation rate item solves the radiation intensity attenuation problem of non-vertical observation in mobile detection, the additional heat effect caused by dust coverage is quantified by using the cross-parameter correlation of power generation efficiency attenuation and solar irradiance, the interference of environmental infrared radiation is offset, the deviation between corrected temperature and real temperature is greatly reduced, and false hot spot false alarm or real fault missed alarm is effectively avoided. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the axonometric view of the application; Figure 2 is the mobile schematic view of the thermal imager of the application; Figure 3 is the axonometric view of the assembly shell connecting part under the perspective of looking up; Figure 4 is the fitting explosion view of the internal structure of the assembly shell; Figure 5 is the enlarged view of the structure at A in the application; Figure 4 Figure 6 is the enlarged view of the structure at B in the application; Figure 4 Figure 7 is the transmission principle diagram of the disc and the alarm gear under the perspective of looking up; Figure 8 is the structural schematic view of the fault troubleshooting part of the application.

[0016] In the figure: 1, photovoltaic panel;2, patrol frame;3, track rack;4, assembly shell;5, moving gear;6, mounting frame;7, thermal imager;8, warning light row;9, motor;10, shell;11, electromagnetic pusher;12, disc;13, inner gear ring;14, inner gear;15, outer gear ring;16, moving shaft;17, assembly gear;18, alarm gear;19, rotating shaft;20, sliding groove;21, sleeve ring;22, transmission sleeve;23, transmission rod group;24, inclined slot;25, fixed shaft group;26, moving roller;27, transparent ring. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the application.

[0018] ​​Embodiment one: Please refer to Figures 1 to 7 The application provides a kind of solar photovoltaic panel fault automatic alarm device, including photovoltaic panel 1, the top of photovoltaic panel 1 is set up with patrol frame 2, the inner wall of patrol frame 2 is fixedly connected with track rack 3, and fault troubleshooting component is arranged on patrol frame 2, and fault troubleshooting component includes assembly shell 4, and the bottom of assembly shell 4 is provided with the moving gear 5 matched with track rack 3, and the surface of assembly shell 4 is fixedly installed with thermal imager 7 by mounting bracket 6, and assembly shell 4 is provided with warning light row 8, and further include cruise component and alarm component, by the setting of cruise component.

[0019] Cruise component includes motor 9, and the surface of motor 9 is fixedly connected with shell 10, and shell 10 is slidingly connected in the inner wall of assembly shell 4, and the inner wall of assembly shell 4 is fixedly connected with electromagnetic pusher 11, and the output end of electromagnetic pusher 11 is fixedly connected with the surface of shell 10, and the output end of motor 9 is fixedly connected with disc 12, and the inner wall of disc 12 is fixedly connected with inner tooth ring 13 and inner gear 14 respectively, and the outer wall of disc 12 is fixedly connected with outer tooth ring 15, and the inner wall of assembly shell 4 is rotatably connected with moving shaft 16, and moving gear 5 is fixedly connected at the end of moving shaft 16, and the end of moving shaft 16 close to disc 12 is fixedly connected with assembly gear 17, and the bottom surface of assembly shell 4 is provided with moving roller 26, and the size of moving roller 26 is adapted to the size of patrol frame 2; When working normally, power generation is carried out through photovoltaic panel 1, when regular maintenance is needed, assembly shell 4 and internal components in warehouse are taken out, assembly shell 4 is installed on patrol frame 2, so that moving gear 5 is engaged with track rack 3, and the surface of moving roller 26 is attached to the surface of patrol frame 2, then thermal imager 7 is fixedly installed on mounting bracket 6 by bolt, then motor 9 is started, and cruise fault troubleshooting work is opened, disc 12 is continuously rotated by motor 9, inner tooth ring 13 and inner gear 14 are synchronously rotated by the rotation of disc 12, at this time, the teeth of inner tooth ring 13 are engaged with the teeth of assembly gear 17, so that moving gear 5 is rotated through the transmission of assembly gear 17 and moving shaft 16, and then thermal imager 7 is moved by the cooperation of moving gear 5 and track rack 3, so that temperature collection of photovoltaic panel 1 is carried out, and whether fault occurs is judged according to temperature condition; When the thermal imager 7 detects the temperature anomaly of the photovoltaic panel 1, at this time the electromagnetic pusher 11 starts to push the motor 9 and the components thereon to translate, at this time the teeth of the inner tooth ring 13 are disengaged from the teeth of the assembly gear 17, and the teeth of the assembly gear 17 are engaged with the teeth of the inner gear 14, at this time the transmission ratio of the motor 9 to the assembly gear 17 is changed, and the transmission direction is changed synchronously, at this time the assembly gear 17 will produce reverse rotation, and the rotation speed is relatively slowed down, so that when the thermal imager 7 is found to be faulty during the movement of the monitoring process, it can slow down and return to recheck and investigate, so that the device can investigate the fault more accurately.

[0020] In the above embodiment, on the basis of the above embodiment: Please refer to Figures 2 to 7 , the alarm component comprises: an alarm gear 18, the side wall of the assembly shell 4 is provided with an opening for the outer tooth ring 15 to extend out, the inner wall of the alarm gear 18 is fixedly connected with a rotating shaft 19, the teeth of the alarm gear 18 are engaged with the teeth of the outer tooth ring 15, the rotating shaft 19 is rotatably connected with the inner wall of the assembly shell 4, the end of the rotating shaft 19 is hingedly connected with the surface of the warning light row 8, the surface of the warning light row 8 is provided with a sliding groove 20, the inner wall of the sliding groove 20 is slidably connected with a sleeve ring 21, a transmission sleeve 22 is sleeved on the rotating shaft 19, the surface of the sleeve ring 21 is rotatably connected with the transmission sleeve 22, the initial state of the warning light row 8 is not parallel to the rotating shaft 19, and the straight-line distance between the lower end of the warning light row 8 and the rotating shaft 19 is farther than that between the upper end of the warning light row 8 and the rotating shaft 19, the surface of the transmission sleeve 22 is fixedly connected with a transmission rod group 23, the transmission rod group 23 is vertically slidably connected to the inner wall of the assembly shell 4, two inclined grooves 24 are formed in the inner wall of the transmission rod group 23, and a fixed shaft group 25 is slidably connected to the inner walls of the two inclined grooves 24. The fixed shaft group 25 is fixedly connected with the surface of the outer shell 10, the surface of the assembly shell 4 is fixedly connected with a transparent ring 27, and the size of the transparent ring 27 is adapted to the size of the warning light row 8.

[0021] More specifically, in this embodiment: in the process of normal inspection of the thermal imager 7 and fault investigation, at this time the synchronously rotating outer tooth ring 15 will also drive the alarm gear 18 to rotate, thereby driving the rotating shaft 19 to rotate, thereby driving the warning light row 8 to rotate, because the red warning light emitted by the warning light row 8 is directed to one side, at this time the transparent ring 27 will present a red light flashing state, simulating the flashing of the warning light, prompting that the device is being inspected. When the deceleration returns to the re-inspection, at this time due to the translation of the motor 9 and the components connected thereto, at this time the outer tooth ring 15 will be disengaged with the alarm gear 18, the warning light row 8 stops rotating, and in the process of disengagement, the synchronous belt drives the fixed shaft group 25 to move away from the warning light row 8, at this time through the transmission of the two inclined grooves 24, the transmission rod group 23 is pushed vertically upward, and then the transmission sleeve 22 is axially moved upward, thereby driving the sleeve ring 21 to move axially, due to the setting of the sleeve ring 21, the warning light row 8 is in an inclined state, when the sleeve ring 21 moves, it will push the warning light row 8 to produce deflection with the hinge point of the rotating shaft 19 as the axis, at this time the warning light row 8 will gradually approach from the inclined state to the horizontal state, until the inclination angle reaches the minimum state, at this time the red warning light emitted is mostly upward, so that the top of the transparent ring 27 emits an upward red light beam, which is distinguished from the circumferential red flashing, prompting that the device is being re-inspected. Considering that the photovoltaic panel 1 is erected in an exposed, open and sunlight-irradiated environment, the device uses the red flashing of the simulated warning light and the continuous irradiation upward as the alarm means during fault diagnosis, which has the characteristics of high recognition, and the maintenance personnel in the area can take appropriate measures according to the alarm situation. Compared with the sound alarm reminding means used in the prior art, the device is easier for the maintenance personnel to locate in an open environment, and has stronger practical functions.

[0022] In Example Three, based on the above-mentioned examples: Please refer to Figure 1 , 2 and Figure 8 , the fault diagnosis part includes a correction part to correct the temperature data collected by the thermal imager 7 during the movement detection, so that the detection temperature is more in line with the actual temperature of the photovoltaic panel 1. The correction part includes a collection part and a processing part. The collection part provides the processing part with data processing after completing data collection; The collection part includes a posture sensor installed on the assembly shell 4, a temperature sensor installed below the photovoltaic panel 1, a current sensor and a voltage sensor arranged at the output end of the photovoltaic panel 1, and a solar irradiance sensor installed around the photovoltaic panel 1 and maintaining the same inclination angle with the photovoltaic panel 1; More specifically, the specific processing process of the processing part is as follows: ; Where T corr is the corrected actual temperature of the photovoltaic panel; ε setRadiance for thermal imager, refers to the radiance parameter preset in the thermal imager 7 for calculating the temperature of the target, and the acquisition means is to read it directly from the device parameter interface of the thermal imager 7, which is a fixed value set by the factory or the user in advance; ε actual Actual radiance for photovoltaic panel 1, which is a fixed value from the factory of the photovoltaic panel 1; θ is the observation angle, which refers to the angle between the observation direction of the thermal imager 7 and the normal line of the surface of the photovoltaic panel 1, and the acquisition means is to collect the attitude angle of itself through the attitude sensor, combine the installation inclination of the photovoltaic panel 1, and calculate through the vector dot product formula; T thermo Detection temperature of the thermal imager 7, which represents the initial infrared temperature data of the surface of the photovoltaic panel 1 without correction; T env Ambient air temperature, which is collected by the temperature sensor to collect the real-time air temperature around the photovoltaic panel 1, and the ambient temperature will interfere with the thermal imager 7 to calculate the reflected infrared radiation, and this parameter ensures that the environmental factors are included in the correction, and the accuracy of the temperature data is improved; ΔT clean Dust heat accumulation correction term, which is the additional temperature rise value caused by the dust coverage on the surface of the photovoltaic panel. The acquisition means is to calculate through the following formula: The temperature rises due to the heat dissipation hindered by the dust, and the heat resistance increase effect caused by the dust coverage is corrected. This parameter can ensure that the temperature data includes the influence of the dust on the heat state, and solves the problem of underestimating the temperature caused by the dust coverage; Wherein Dust correction coefficient, which is an empirical coefficient quantifying the relationship between dust coverage and temperature rise, is a preset value, and is a bridge connecting the degree of dust coverage and the temperature rise, so that the non-directly measured dust factor is converted into a calculable value, supporting the quantification of dust correction, G is the solar irradiance, which refers to the solar radiation power received per unit area, and the acquisition means is to directly collect it through the solar irradiance sensor, η decay Efficiency decay rate of the actual power generation efficiency of the photovoltaic panel relative to the nominal efficiency, which is calculated through the following formula: η decay =(η nominal -η actual ) / η nominal； Wherein η nominal is the standard power generation efficiency of the photovoltaic panel under standard conditions, which is a preset value, and η actual refers to the real power generation efficiency of the photovoltaic panel under the current environment, which reflects the current power generation state of the photovoltaic panel and indirectly reflects the dust coverage, and provides core data for the calculation of the efficiency decay rate, which is a key intermediate parameter for dust correction, and is calculated through the formula η actual =P out / (G×A); where P out is the real-time output of the photovoltaic panel, the acquisition means is to collect directly through the current sensor and voltage sensor installed at the output end of the photovoltaic panel 1, G is the solar irradiance, A is the effective generating area of a single photovoltaic panel, and is a preset value; By converting the Celsius temperature into the Kelvin temperature, and adding the value of 273.15, T thermo is converted into T thermo，K , and T env is converted into T env，K .

[0023] The Lambert cosine law indicates that the radiation intensity received by the thermal imager when observing non-perpendicularly is cosθ times that when observing perpendicularly, and therefore, the real radiation intensity needs to be divided by cosθ to restore the vertical state. In the formula, by taking ε actual × cosθ as the denominator and combining with ε set , the influence of the angle attenuation is converted into the equivalent correction of the emissivity. This calculation method not only retains the correction logic of the emissivity deviation, but also synchronously corrects the radiation attenuation caused by the angle and embeds it into the fourth power radiation formula; And the core law of radiation physics determines the fourth power relationship between temperature and radiation power. The inverse operation must use the fourth root to accurately restore the real temperature, rather than a nonlinear or other power form, to ensure the scientific nature of the correction result. Therefore, the fourth root form is used to restore the temperature, which is the inverse operation of the Stefan-Boltzmann law. The deviation of the default emissivity ε set of the thermal imager 7 from the actual emissivity ε actual of the photovoltaic panel 1 will cause the environmental radiation to be mistakenly calculated as the target radiation. By quantifying the deviation degree through (ε set / ε actual ) - 1, and then multiplying it by the fourth power of the absolute temperature of the environment, the interference of the environmental reflection on the detection result is restored. This calculation method not only continues the physical basis of the classic environmental correction, but also is compatible with the newly added angle correction term, ensuring the consistency of multi-factor correction and avoiding introducing new deviations due to angles; ; where T threshold is a dynamic temperature threshold value, which is preset according to the model of the photovoltaic panel 1 and the environmental conditions; T corr is the actual temperature of the photovoltaic panel after correction; During the cruise fault diagnosis, the above calculation can be performed to correct the detected temperature. If the corrected S is 1, the electromagnetic pusher 11 is started for deceleration review. If the review result S is still 1, the fault instruction can be sent to the handheld terminal of the maintenance personnel. When S is 0, it is considered as a normal state, and the cruise diagnosis continues.

[0024] Working principle: when the device is used, the assembly shell 4 in the warehouse is taken out, the assembly shell 4 is installed on the patrol frame 2, the moving gear 5 is engaged with the track rack 3, the surface of the moving roller 26 is attached to the surface of the patrol frame 2, then the thermal imager 7 is fixedly installed on the mounting frame 6 by bolts, then the motor 9 is started to open the cruise fault checking work, the thermal imager 7 is moved by the motor 9 to collect the temperature of the photovoltaic panel 1, and whether a fault occurs is judged according to the temperature condition; When the thermal imager 7 detects that the temperature of the photovoltaic panel 1 is abnormal, the electromagnetic pusher 11 is started to push the motor 9 and the components thereon to translate, at this time the teeth of the inner gear ring 13 are disengaged from the teeth of the assembly gear 17, and the teeth of the assembly gear 17 are engaged with the teeth of the inner gear 14, at this time the transmission ratio of the motor 9 to the assembly gear 17 is changed, and the transmission direction is changed synchronously, at this time the assembly gear 17 will rotate in the opposite direction, and the rotation speed is relatively slow, so that when a fault is found during the moving monitoring process, the thermal imager 7 can slow down and return for rechecking, so that the device can check the fault more accurately; During the normal patrol inspection of the thermal imager 7, the outer gear ring 15 rotating synchronously will also drive the alarm gear 18 to rotate, thereby driving the transparent ring 27 to present a state of red light flashing, simulating the flashing of the warning light and prompting that the device is being patrolled; When the speed is reduced to return for rechecking, at this time the motor 9 and the components connected thereto translate, at this time the outer gear ring 15 will disengage from the alarm gear 18, the warning light row 8 will stop rotating, and during the disengagement process, the warning light row 8 will gradually approach from the inclined state to the horizontal state until the inclination angle reaches the minimum state, at this time most of the red warning light emitted is upward, so that the top of the transparent ring 27 emits an upward red light beam, which is distinguished from the circumferential red flashing, prompting that the device is being rechecked, after the photovoltaic panel 1 is patrolled and checked, the assembly shell 4 and the thermal imager 7 are taken down in turn and stored in the warehouse, and can be used next time.

[0025] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A solar photovoltaic panel automatic fault alarm device comprising a photovoltaic panel (1), characterized in that: The photovoltaic panel (1) is arranged above the patrol frame (2), the inner wall of the patrol frame (2) is fixedly connected with the track rack (3), and the patrol frame (2) is provided with a fault troubleshooting component; The fault troubleshooting component comprises an assembly shell (4), the bottom of the assembly shell (4) is provided with a moving gear (5) matched with the track rack (3), the surface of the assembly shell (4) is fixedly installed with a thermal imager (7) through a mounting frame (6), and the assembly shell (4) is provided with a warning light row (8); The fault troubleshooting component further comprises: The cruise component drives the thermal imager (7) to move through the rotation of the moving gear (5), and controls the moving gear (5) to rotate reversely at a reduced speed when the thermal imager (7) finds abnormal conditions; The alarm component drives the warning light row (8) to rotate circumferentially when the thermal imager (7) moves, and switches the direction of the warning light row (8) and stops rotating when the moving gear (5) rotates reversely at a reduced speed; The correction component corrects the temperature data collected by the thermal imager (7) during the movement detection, so that the detected temperature conforms to the actual temperature of the photovoltaic panel (1).

2. The automatic fault alarm device for solar photovoltaic panels according to claim 1, characterized in that: The correction component comprises an acquisition component and a processing component, and the acquisition component provides the processing component for data processing after completing data acquisition.

3. The automatic fault alarm device for solar photovoltaic panels according to claim 1, characterized in that: The cruise component comprises: The motor (9) is fixedly connected with the shell (10) on the surface, the shell (10) is slidingly connected to the inner wall of the assembly shell (4), the electromagnetic pusher (11) is fixedly connected to the inner wall of the assembly shell (4), the output end of the electromagnetic pusher (11) is fixedly connected to the surface of the shell (10), the output end of the motor (9) is fixedly connected with the disc (12), the inner wall of the disc (12) is fixedly connected with the inner tooth ring (13) and the inner gear (14) respectively, the outer wall of the disc (12) is fixedly connected with the outer tooth ring (15), the inner wall of the assembly shell (4) is rotatably connected with the moving shaft (16), the moving gear (5) is fixedly connected to the end of the moving shaft (16), and the moving shaft (16) is fixedly connected with the assembly gear (17) at the end close to the disc (12).

4. The automatic fault alarm device for solar photovoltaic panels according to claim 3, characterized in that: The alarm component comprises: The alarm gear (18) is provided with an opening in the side wall of the assembly shell (4) for the outer gear ring (15) to extend out, the inner wall of the alarm gear (18) is fixedly connected with a rotating shaft (19), the teeth of the alarm gear (18) are engaged with the teeth of the outer gear ring (15), the rotating shaft (19) is rotatably connected with the inner wall of the assembly shell (4), the end of the rotating shaft (19) is hingedly connected with the surface of the warning light row (8), the surface of the warning light row (8) is provided with a sliding groove (20), the inner wall of the sliding groove (20) is slidably connected with a sleeve ring (21), the rotating shaft (19) is sleeved with a transmission sleeve (22), the sleeve ring (21) is rotatably connected with the surface of the transmission sleeve (22), the initial state of the warning light row (8) is not parallel to the rotating shaft (19), and the straight-line distance between the lower end of the warning light row (8) and the rotating shaft (19) is farther than that between the upper end of the warning light row (8) and the rotating shaft (19), the surface of the transmission sleeve (22) is fixedly connected with a transmission rod group (23), the transmission rod group (23) is vertically slidably connected with the inner wall of the assembly shell (4), the inner wall of the transmission rod group (23) is provided with two inclined grooves (24), and the inner walls of the two inclined grooves (24) are commonly slidably connected with a fixed shaft group (25), and the fixed shaft group (25) is fixedly connected with the surface of the shell (10).

5. The automatic fault alarm device for solar photovoltaic panels according to claim 2, characterized in that: The collection component comprises: The posture sensor is installed on the assembly shell (4), the temperature sensor is installed below the photovoltaic panel (1), the current sensor and the voltage sensor are arranged at the output end of the photovoltaic panel (1), and the solar irradiance sensor is installed around the photovoltaic panel (1) and maintains the same inclination angle as the photovoltaic panel (1).

6. The automatic fault alarm device for solar photovoltaic panels according to claim 5, characterized in that: The specific processing process of the processing component is as follows: ； where T corr is the corrected actual temperature of the photovoltaic panel (1); ε set setting the emissivity for the thermal imager (7); ε actual ε is the actual irradiance of the photovoltaic panel (1); θ is an observation angle; T thermo to detect temperature for the thermal imager (7); T env T is the ambient air temperature; ΔT clean is the correction term for dust heat accumulation; ； where T threshold is a dynamic temperature threshold, when S is 1, then it is considered as a fault condition, when S is 0, then it is considered as a normal condition.

7. The automatic fault alarm device for solar photovoltaic panels according to claim 4, characterized in that: The bottom surface of the assembly shell (4) is provided with a moving roller (26), and the size of the moving roller (26) is adapted to the size of the patrol frame (2).

8. The automatic fault alarm device for solar photovoltaic panels according to claim 7, characterized in that: The surface of the assembly shell (4) is fixedly connected with a transparent ring (27), and the size of the transparent ring (27) is adapted to the size of the warning light row (8).

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