CN112577545A - Detection method of photovoltaic cleaning device and photovoltaic power generation system - Google Patents
Detection method of photovoltaic cleaning device and photovoltaic power generation system Download PDFInfo
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- CN112577545A CN112577545A CN202011398909.9A CN202011398909A CN112577545A CN 112577545 A CN112577545 A CN 112577545A CN 202011398909 A CN202011398909 A CN 202011398909A CN 112577545 A CN112577545 A CN 112577545A
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- connecting bridge
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive 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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- 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
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Abstract
The invention relates to the technical field of detecting the integrity of a connecting bridge, and discloses a detection method of a photovoltaic cleaning device and a photovoltaic power generation system. The detection method of the photovoltaic cleaning device comprises the following steps: installing an induction unit on at least one of one side of the photovoltaic module close to the connecting bridge, the photovoltaic sweeping equipment and the connecting bridge; every preset time, the sensing unit detects the connecting bridge and transmits detection data related to the connecting bridge to the photovoltaic cleaning equipment; comparing the detection data with preset data, and if the detection data is not matched with the preset data, judging that the connecting bridge has an obstacle; and if the detection data are matched with the preset data, judging that the connecting bridge is complete. The detection method of the photovoltaic cleaning device disclosed by the invention can detect the integrity of the connecting bridge in time, and avoids the phenomenon that photovoltaic cleaning equipment falls off from the connecting bridge.
Description
Technical Field
The invention relates to the technical field of detecting the integrity of a connecting bridge, in particular to a detection method of a photovoltaic cleaning device and a photovoltaic power generation system.
Background
In the photovoltaic power station, because adjacent photovoltaic strings or photovoltaic arrays are arranged at intervals, photovoltaic cleaning equipment is required to be used for cleaning the photovoltaic strings or the photovoltaic arrays at intervals, and therefore the photovoltaic strings or the photovoltaic arrays are required to be bridged by a connecting bridge, so that the photovoltaic cleaning equipment is used for continuously cleaning the photovoltaic strings or the photovoltaic arrays arranged in rows and columns.
In the prior art, the integrality of the connecting bridge is detected and only can be checked manually, the manual check cannot achieve comprehensiveness and timeliness, the connecting bridge cannot be known timely after loosening, breaking or even falling, and the photovoltaic cleaning equipment has the risk of falling from the connecting bridge when cleaning a photovoltaic group string or a photovoltaic array.
Disclosure of Invention
Based on the above, the invention aims to provide a detection method of a photovoltaic cleaning device and a photovoltaic power generation system, which can reduce the probability that a photovoltaic cleaning device falls off from a photovoltaic module by detecting a connecting bridge in real time and further judging whether the connecting bridge has a fault.
In order to achieve the purpose, the invention adopts the following technical scheme:
a detection method of a photovoltaic cleaning device comprises the following steps:
installing an induction unit on at least one of one side of the photovoltaic module close to the connecting bridge, the photovoltaic sweeping equipment and the connecting bridge;
every preset time, the sensing unit detects the connecting bridge and transmits detection data related to the connecting bridge to the photovoltaic cleaning equipment;
comparing the detection data with preset data, and if the detection data is not matched with the preset data, judging that the connecting bridge has an obstacle; and if the detection data is matched with the preset data, judging that the connecting bridge is complete.
As a preferred scheme of the detection method of the photovoltaic cleaning device, if the connection bridge is judged to have obstacles for a continuous preset number of times, the connection bridge is considered to have a fault; and if the connection bridge is judged to be complete for at least one time within the preset times, the connection bridge is considered to be complete.
As a preferable scheme of the detection method of the photovoltaic cleaning device, when at least one sensing unit is arranged on the photovoltaic cleaning equipment, the photovoltaic cleaning equipment stops passing through the failed connecting bridge if it is determined that the connecting bridge fails in the process of cleaning the photovoltaic module.
As an optimal scheme of the detection method of the photovoltaic cleaning device, the detection data is transmitted to the photovoltaic cleaning equipment through a background management system, and the photovoltaic cleaning equipment is used for comparing the detection data with the preset data to judge whether the connecting bridge has an obstacle.
As a preferable scheme of the detection method of the photovoltaic cleaning device, when the sensing unit is installed on one side of the photovoltaic module close to the connecting bridge, if it is determined that the connecting bridge fails, the photovoltaic cleaning device stops passing through the failed connecting bridge.
As a preferable scheme of the detection method of the photovoltaic cleaning device, when the sensing unit is installed on the connecting bridge, if it is determined that the connecting bridge is faulty, the photovoltaic cleaning device stops passing through the faulty connecting bridge.
As a preferable scheme of the detection method of the photovoltaic cleaning device, the sensing unit includes at least one of a photoelectric output sensing unit, an analog output sensing unit and an image acquisition sensing unit.
As a preferable mode of the detection method of the photovoltaic cleaning device, the photoelectric output sensing unit includes at least one of an infrared photoelectric switch sensor, a correlation type photoelectric switch sensor, a diffuse reflection type photoelectric switch sensor, a limit switch sensor, and a proximity switch sensor.
As a preferable scheme of the detection method of the photovoltaic cleaning device, the analog quantity output sensing unit includes at least one of a laser ranging sensor, an ultrasonic sensor, a millimeter wave radar sensor, a pressure sensor, and a displacement sensor.
As a preferable scheme of the detection method of the photovoltaic cleaning device, when one of the sensing units on the cantilever of the photovoltaic cleaning device determines that the connecting bridge is obstructed, and when another one of the sensing units on the same cantilever determines that the connecting bridge is complete, the connecting bridge is complete.
A photovoltaic power generation system is detected by adopting the detection method of the photovoltaic cleaning device in any scheme, and the photovoltaic power generation system comprises:
the photovoltaic modules are distributed at intervals;
the two ends of the connecting bridge are respectively connected with the two adjacent photovoltaic modules;
the photovoltaic cleaning equipment is used for cleaning the photovoltaic module;
the sensing unit is arranged on at least one of the photovoltaic sweeping equipment, one side of the photovoltaic module close to the connecting bridge and the connecting bridge.
As a preferred scheme of the photovoltaic power generation system, the connecting bridge is arranged between two adjacent photovoltaic modules, the distance between two adjacent photovoltaic modules in the rest of the photovoltaic modules is a first distance, the photovoltaic sweeping device is provided with at least one cantilever, one of the cantilevers is provided with two induction units, the distance between the two induction units is a second distance, and the second distance is greater than the first distance.
The invention has the beneficial effects that: according to the detection method of the photovoltaic cleaning device, whether the connecting bridge is obstructed or not can be judged by comparing the detection data detected by the sensing unit with the pre-stored preset data, so that the integrity of the connecting bridge is judged, and the phenomenon that photovoltaic cleaning equipment falls off from the connecting bridge is avoided.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
Fig. 1 is a block flow diagram of a detection method of a photovoltaic cleaning apparatus according to an embodiment of the present invention;
FIG. 2 is a block diagram of a photovoltaic power generation system according to one embodiment of the present invention;
fig. 3 is a block flow diagram of a detection method of a photovoltaic cleaning apparatus according to a second embodiment of the present invention;
FIG. 4 is a block diagram of a photovoltaic power generation system according to a second embodiment of the present invention;
fig. 5 is a block flow diagram of a detection method of a photovoltaic cleaning apparatus according to a third embodiment of the present invention;
fig. 6 is a partially exploded view of a connecting bridge and a sensing unit according to a third embodiment of the present invention.
In the figure:
1. a photovoltaic module; 2. a connecting bridge; 3. photovoltaic cleaning equipment; 4. a sensing unit.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
As shown in fig. 1 and fig. 2, the present embodiment provides a detection method for a photovoltaic cleaning device, including the following steps:
s11, installing an induction unit 4 on at least one of the photovoltaic cleaning equipment 3 and the connecting bridge 2 on one side of the photovoltaic module 1 close to the connecting bridge 2;
s12, detecting the connecting bridge 2 by the sensing unit 4 every preset time and transmitting detection data related to the connecting bridge 2 to the photovoltaic cleaning equipment 3;
s13, comparing the detection data with preset data, and if the detection data are not matched with the preset data, judging that the connecting bridge 2 has obstacles; and if the detection data are matched with the preset data, judging that the connecting bridge 2 is complete.
According to the detection method of the photovoltaic cleaning device, whether the connecting bridge 2 is obstructed or not can be judged by comparing the detection data detected by the sensing unit 4 with the pre-stored preset data, so that the integrity of the connecting bridge 2 is judged, and the phenomenon that the photovoltaic cleaning equipment 3 falls off from the connecting bridge 2 is avoided.
After S13, step S14 is further included, specifically, if it is determined that there is an obstacle in the connecting bridge 2 for all the consecutive preset times, it is determined that the connecting bridge 2 is faulty; if the connecting bridge 2 is judged to be complete for at least one time within the preset times, the connecting bridge 2 is considered to be complete.
Specifically, in S13, when photovoltaic cleaning device 3 cleans photovoltaic module 1 or wind blows connection bridge 2, connection bridge 2 may rock, even connection bridge 2 is intact this moment, sensing unit 4 still can detect connection bridge 2 and take place unusually, make the testing result inaccurate, misjudge that connection bridge 2 exists the obstacle promptly, make the testing result inaccurate, and the S14 that adds is that sensing unit 4 predetermines the number of times in succession all judges connection bridge 2 to have the obstacle, then consider connection bridge 2 to break down, need maintainer in time to maintain connection bridge 2 this moment, otherwise, then consider connection bridge 2 to be complete, need not the maintenance, the phenomenon of judging connection bridge 2 to break down because photovoltaic cleaning device 3 or external factor lead to connecting bridge 2 to rock has been avoided to the S14 that adds, the exactness of testing result has been guaranteed.
It should be noted that in S11, the sensing unit 4 of the present embodiment is installed on the photovoltaic cleaning apparatus 3, the preset data is detection data detected by the sensing unit 4 when the connecting bridge 2 is complete, the preset times are times set according to actual needs, and may be three times, four times, or five times, and the like, specifically, the preset times are set according to actual needs. Detection data that induction element 4 detected directly transmits for photovoltaic cleans equipment 3 or transmits for photovoltaic cleans equipment 3 through backstage management system, photovoltaic cleans equipment 3 and can compares detection data and predetermines data to judge whether connecting bridge 2 takes place the obstacle, finally make photovoltaic clean equipment 3 in time acquire the information of the integrality of connecting bridge 2, avoid induction element 4 to detect that connecting bridge 2 breaks down and photovoltaic cleans the emergence of the phenomenon that equipment 3 can't acquire the integrality of connecting bridge 2.
In other embodiments, the background management system may compare the received detection data with preset data stored in advance, further determine whether the connecting bridge 2 is in a fault, finally determine whether the connecting bridge 2 is in a fault, and transmit the final detection result to the photovoltaic cleaning device 3.
Specifically, as shown in fig. 2, four sensing units 4 are arranged on the photovoltaic cleaning device 3 of the present embodiment, the photovoltaic cleaning device 3 starts to clean the photovoltaic module 1 along a preset cleaning route from the shutdown position, if it is determined that the connecting bridge 2 fails, the photovoltaic cleaning device 3 stops passing through the failed connecting bridge 2, and the photovoltaic cleaning device 3 returns to the shutdown position, so as to prevent the photovoltaic cleaning device 3 from stopping on the failed connecting bridge 2 and aggravating the damage of the connecting bridge 2, and further reduce the probability that the photovoltaic cleaning device 3 falls off from the connecting bridge 2.
In S21, the sensing unit 4 of this embodiment is a photoelectric output sensing unit, specifically, the photoelectric output sensing unit is an infrared photoelectric switch sensor, when the connecting bridge 2 is intact, infrared light emitted by the infrared photoelectric switch sensor reaches the connecting bridge 2 and is reflected and received by the infrared photoelectric switch sensor, and the infrared photoelectric switch sensor outputs a high level, that is, detection data at this time is a high level, and a distance between the infrared photoelectric switch sensor and the connecting bridge 2 at this time is within a range distance.
When the connecting bridge 2 has a loose fault, infrared light emitted by the infrared photoelectric switch sensor reaches the connecting bridge 2 and cannot be reflected back to be received by the infrared photoelectric switch sensor, and the infrared photoelectric switch sensor outputs a low level at the moment, namely the detection data at the moment is a low level; or when the connecting bridge 2 breaks or even falls off, the infrared light emitted by the infrared photoelectric switch sensor cannot reach the connecting bridge 2, the infrared light cannot be reflected back, the infrared photoelectric switch sensor outputs a low level at the same time, and the detection data at the same time is a low level. The low level of infrared photoelectric switch sensor output compares with the high level of output when connecting bridge 2 is complete, then can judge that the connection bridge 2 that detects this time has the obstacle, and all judges in the continuous preset number of times that connection bridge 2 has the obstacle, then considers connection bridge 2 to break down, and the distance between infrared photoelectric switch sensor and the connection bridge 2 that breaks down this moment no longer is located the range distance. In other embodiments, it is also possible that the infrared photoelectric switch sensor outputs a low level when the connecting bridge 2 is intact, and outputs a high level when the connecting bridge 2 fails.
In other embodiments, the photoelectric output sensing unit may also be at least one of an infrared photoelectric switch sensor, a limit switch sensor, a proximity switch sensor, and the like, and these photoelectric output sensing units may all output a low level or a high level, and may determine whether the connection bridge 2 has an obstacle through comparison, and if it is determined that the connection bridge 2 has an obstacle for a preset number of times, it is determined that the connection bridge 2 has a failure.
In other embodiments, the sensing unit 4 may also be at least one of an analog output sensing unit and an image capture sensing unit.
Specifically, when analog output sensing element is laser range sensor, the laser that laser range sensor transmitted arrives and reflects and is received by laser range sensor after connecting bridge 2, laser range sensor output laser range sensor and connect the distance between bridge 2, detection data this moment is the distance, preset data is for predetermineeing the distance threshold, if above-mentioned distance is located predetermineeing the distance threshold, then connect bridge 2 intact, if above-mentioned distance is not located above-mentioned predetermineeing the distance threshold, then judge that connect bridge 2 breaks down, all judge that connect bridge 2 to have the obstacle when in the continuous preset number of times, then think that connect bridge 2 breaks down.
In other embodiments, the analog quantity output sensing unit may also be at least one of analog quantity output sensing units used for measuring distance, such as an ultrasonic sensor and a millimeter wave radar sensor, and these analog quantity output sensing units can all output distance, and through comparison, it can be determined whether the connecting bridge 2 has an obstacle, and if it is determined that the connecting bridge 2 has an obstacle for a preset number of times, it is determined that the connecting bridge 2 has a fault.
Specifically, in other embodiments, when the image acquisition sensing unit is an image sensor, the image sensor continuously acquires images of the connecting bridge 2 when the connecting bridge is intact, loose, broken or dropped, that is, the detection data is an image, and stores the acquired image in the photovoltaic cleaning device 3 or the background management system, and after a large number of images are stored, whether the connecting bridge 2 is completely connected can be judged according to the image of the connecting bridge 2 acquired on site.
Generally speaking, if the distance between two adjacent photovoltaic modules 1 is large, the connecting bridge 2 must be set up at this time, if the distance between two adjacent photovoltaic modules 1 is small, the connecting bridge 2 may not be set up at this time, and in order to prevent the sensing unit 4 from misjudging the situation where the connecting bridge 2 is not set up as an obstacle, it is required to set up two sensing units 4 on at least one cantilever of the photovoltaic cleaning device 3. Specifically, if a sensing unit 4 on the cantilever of photovoltaic cleaning equipment 3 judges that there is the obstacle in connecting bridge 2, and another sensing unit 4 on the same cantilever judges that connecting bridge 2 is complete, should be the condition that does not set up connecting bridge 2 between two adjacent photovoltaic modules 1 that the distance is nearer this moment, because do not set up connecting bridge 2 between two adjacent photovoltaic modules 1, judge that connecting bridge 2 is complete this moment, only when two sensing units 4 judge simultaneously that connecting bridge 2 has the obstacle, just consider connecting bridge 2 to have the obstacle.
The embodiment also provides a photovoltaic power generation system, and the photovoltaic power generation system is detected by using the detection method of the photovoltaic cleaning device described in the above embodiment, as shown in fig. 2, the photovoltaic power generation system includes a plurality of photovoltaic modules 1, a connecting bridge 2, a photovoltaic cleaning device 3 and an induction unit 4, two adjacent photovoltaic modules 1 are distributed at intervals, two ends of the connecting bridge 2 are respectively connected with two adjacent photovoltaic modules 1, the photovoltaic cleaning device 3 is used for cleaning the photovoltaic modules 1, and the induction unit 4 is arranged on the photovoltaic cleaning device 3.
Specifically, as shown in fig. 2, four cantilevers are arranged on the photovoltaic cleaning device 3, and each cantilever is provided with one sensing unit 4, that is, four sensing units 4 are arranged on the photovoltaic cleaning device 3. In other embodiments, at least one sensing unit 4 may be further disposed on the photovoltaic sweeping apparatus 3, and at least one sensing unit 4 is mounted on the cantilever in front of the photovoltaic sweeping apparatus 3, and the mounting positions of the remaining sensing units 4 are specifically selected according to actual needs. Specifically, if it is only equipped with a sensing unit 4 on photovoltaic cleans equipment 3, and this sensing unit 4 installs on the cantilever of photovoltaic cleans equipment 3's rear, suppose that connect bridge 2 and break down, when photovoltaic cleans equipment 3's front portion and has moved to connecting bridge 2 on, sensing unit 4 still does not reach and connects bridge 2 directly over for sensing unit 4 can not detect the condition whether connect bridge 2 has the trouble, nevertheless because connecting bridge 2 has broken down, make photovoltaic clean equipment 3 probably drop from the connecting bridge 2 that breaks down.
In other embodiments, a connecting bridge 2 is disposed between two adjacent photovoltaic modules 1, and a distance between two adjacent photovoltaic modules 1 in the remaining photovoltaic modules 1 is a first distance, that is, a distance between two adjacent photovoltaic modules 1 without the connecting bridge 2 is a first distance. That is to say, not all be equipped with between two adjacent photovoltaic module 1 and connect bridge 2, can also not set up between two adjacent photovoltaic module 1 and connect bridge 2, but the distance between two adjacent photovoltaic module 1 that require not to set up and connect bridge 2 is less, photovoltaic cleans equipment 3 and can move to another photovoltaic module 1 from a photovoltaic module 1 on, be equipped with two induction element 4 on at least one cantilever this moment, the distance between two induction element 4 is the second distance, the second distance is greater than first distance, when two induction element 4 judge simultaneously that connect bridge 2 has the obstacle, judge that connect bridge 2 has the obstacle. Specifically, when one sensing unit 4 on the cantilever detects that the connecting bridge 2 is failed and the other sensing unit 4 on the cantilever detects that the connecting bridge 2 is complete, it indicates that the photovoltaic sweeping device 3 is passing through two adjacent photovoltaic modules 1 without the connecting bridge 2, and at this time, it is determined that the connecting bridge 2 is normal.
Example two
As shown in fig. 3 and 4, the present embodiment provides a detection method of a photovoltaic cleaning device, including the following steps:
s21, installing an induction unit 4 on one side of the photovoltaic module 1 close to the connecting bridge 2;
s22, detecting the connecting bridge 2 by the sensing unit 4 every preset time and transmitting detection data related to the connecting bridge 2 to the photovoltaic cleaning equipment 3;
s23, the photovoltaic cleaning equipment 3 compares the detection data with preset data, and if the detection data are not matched with the preset data, the connecting bridge 2 is judged to have obstacles; if the detection data is matched with the preset data, judging that the connecting bridge 2 is complete;
s24, judging that the connecting bridge 2 has obstacles by the continuous preset times, and considering that the connecting bridge 2 has a fault; if the connecting bridge 2 is judged to be complete for at least one time within the preset times, the connecting bridge 2 is considered to be complete.
In S24, if it is determined that the connecting bridge 2 is broken, the photovoltaic cleaning device 3 stops passing through the broken connecting bridge 2.
Specifically, in S21, the induction unit 4 of this embodiment is a photoelectric output induction unit, specifically, this photoelectric output induction unit is correlation type photoelectric switch sensor, the transmitter and the receiver of correlation type photoelectric switch sensor are located respectively on the photovoltaic module 1 at connecting bridge 2 both ends, transmitter and receiver are parallel with the bridge floor of connecting bridge 2, when connecting bridge 2 breaks down, the bridge floor is compared with sound and is taken place sunken, the signal that the transmitter sent this moment is hindered by sunken connecting bridge 2, make the unable received signal of receiver, thereby can confirm that connecting bridge 2 presents the obstacle.
In other embodiments, photoelectric output induction element still can be for diffuse reflection type photoelectric switch sensor, diffuse reflection type photoelectric switch sensor installs in photovoltaic module 1 draws close to the one end of connecting bridge 2, diffuse reflection type photoelectric switch sensor is horizontal installation, when connecting bridge 2 is intact, diffuse reflection type photoelectric switch sensor can not receive the reflected light of self transmission, when connecting bridge 2 breaks down, the bridge floor is compared with intact state and is taken place sunken, diffuse reflection type photoelectric switch sensor can receive the reflected light of self transmission, thereby can confirm that connecting bridge 2 breaks down.
In other embodiments, photoelectric output induction element can also be limit switch sensor, limit switch sensor installs the one end at photovoltaic module 1 butt joint connecting bridge 2, when connecting bridge 2 is intact, limit switch sensor's separation blade is not connected bridge 2 and is extrudeed, output high level, detection data this moment promptly is high level, when connecting bridge 2 breaks down, the bridge floor is compared with intact state and is taken place sunken, connecting bridge 2 touches limit switch sensor's separation blade, make limit switch sensor output low level, detection data this moment promptly is low level, thereby can confirm that connecting bridge 2 breaks down. In other embodiments, it is also possible that the limit switch sensor outputs a low level when the connecting bridge 2 is intact, and outputs a high level when the connecting bridge 2 fails.
In other embodiments, photoelectric output sensing element can also be proximity switch sensor, proximity switch sensor installs the one end of connecting bridge 2 in photovoltaic module 1 hugs closely, when connecting bridge 2 is intact, proximity switch sensor does not detect and connects bridge 2, output high level, detection data this moment is the high level promptly, when connecting bridge 2 breaks down, the bridge floor is compared with intact state and is taken place to sink, connect bridge 2 proximity switch sensor, make proximity switch sensor output low level, detection data this moment promptly is the low level, thereby can confirm that connecting bridge 2 breaks down. In other embodiments, the proximity switch sensor may output a low level when the connection bridge 2 is intact, and output a high level when the connection bridge 2 fails. In other embodiments, the photoelectric output sensing unit may also be another sensing unit 4, the sensing unit 4 is disposed at one end of the photovoltaic module 1, which is close to the connecting bridge 2, and the specific type is selected according to actual needs.
In other embodiments, the sensing unit 4 may also be at least one of an analog output sensing unit and an image capture sensing unit.
In other embodiments, when the analog quantity output sensing unit is a pressure sensor, the pressure sensor is arranged at one end of the photovoltaic module 1, which is close to the connecting bridge 2, and when the connecting bridge 2 is complete, the pressure sensor has no pressure or very small pressure, and outputs corresponding voltage or current, that is, the detection data at this time is voltage or current; when the connecting bridge 2 is in failure, the pressure applied to the pressure sensor is increased, the output detection data is correspondingly increased, and when the pressure is increased to the threshold value of the abnormal value, the connecting bridge 2 can be judged to be in failure.
In other embodiments, when the analog output sensing unit is a displacement sensor, the displacement sensor is disposed at one end of the photovoltaic module 1, which is close to the connecting bridge 2, and when the connecting bridge 2 is complete, the displacement sensor is not compressed or stretched, and the output voltage or current is within a normal threshold range, that is, the detection data at this time is voltage or current; when the connecting bridge 2 is in fault, the displacement sensor is not compressed or stretched, the voltage or current output by the displacement sensor exceeds a normal threshold value, and the connecting bridge 2 can be judged to be in fault.
In other embodiments, the analog output sensing unit may also be another sensing unit 4, and the sensing unit 4 is disposed at one end of the photovoltaic module 1, which is close to the connecting bridge 2, and the specific type is selected according to actual needs.
Specifically, in other embodiments, when the image acquisition sensing unit is an image sensor, the image sensor continuously acquires images of the connecting bridge 2 when the connecting bridge is intact, loose, broken or dropped, that is, the detection data is an image, and stores the acquired image in the photovoltaic cleaning device 3 or the background management system, and after a large number of images are stored, whether the connecting bridge 2 is completely connected can be judged according to the image of the connecting bridge 2 acquired on site.
As shown in fig. 4, the present embodiment further provides a photovoltaic power generation system, which is different from the first embodiment in that four sensing units 4 of the present embodiment are disposed at one end of the photovoltaic module 1 adjacent to the connecting bridge 2.
EXAMPLE III
As shown in fig. 5 and fig. 6, the present embodiment provides a detection method for a photovoltaic cleaning device, including the following steps:
s31, installing the induction unit 4 on the connecting bridge 2;
s32, detecting the connecting bridge 2 by the sensing unit 4 every preset time and transmitting detection data related to the connecting bridge 2 to the photovoltaic cleaning equipment 3;
s33, the photovoltaic cleaning equipment 3 compares the detection data with preset data, and if the detection data are not matched with the preset data, the connecting bridge 2 is judged to have obstacles; if the detection data is matched with the preset data, judging that the connecting bridge 2 is complete;
and S34, judging that the connecting bridge 2 has obstacles by the continuous preset times, considering that the connecting bridge 2 has a fault, and considering that the connecting bridge 2 is complete if the connecting bridge 2 is judged to be complete by at least one time within the preset times.
The difference between this embodiment and the second embodiment is that in S31, as shown in fig. 6, the sensing unit 4 of this embodiment is installed in the connecting bridge 2, and the sensing unit 4 may be any one of a photoelectric output sensing unit and an analog output sensing unit, and the specific type is similar to that of the second embodiment. Specifically, when it is determined that the connecting bridge 2 is broken down, the photovoltaic cleaning apparatus 3 stops passing through the broken-down connecting bridge 2.
As shown in fig. 6, the present embodiment further provides a photovoltaic power generation system, which is different from the second embodiment in that the number of the sensing units 4 in the present embodiment is six, four of the sensing units 4 are located at the position where the connecting bridge 2 is connected to the photovoltaic module 1 and located on the connecting bridge 2, and the other two sensing units 4 are located in the middle of the connecting bridge 2. In other embodiments, the number of the sensing units 4 may also be other numbers, which are specifically set according to actual needs.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (12)
1. The detection method of the photovoltaic cleaning device is characterized by comprising the following steps of:
installing an induction unit (4) on at least one of the photovoltaic cleaning equipment (3) and the connecting bridge (2) on one side of the photovoltaic module (1) close to the connecting bridge (2);
every preset time, the sensing unit (4) detects the connecting bridge (2) and transmits detection data related to the connecting bridge (2) to the photovoltaic cleaning equipment (3);
comparing the detection data with preset data, and if the detection data is not matched with the preset data, judging that the connecting bridge (2) has an obstacle; and if the detection data are matched with the preset data, judging that the connecting bridge (2) is complete.
2. The detection method of the photovoltaic cleaning device according to claim 1, wherein if the connection bridge (2) is judged to have an obstacle for a preset number of consecutive times, the connection bridge (2) is considered to have a fault; and if the connection bridge (2) is judged to be complete for at least one time within the preset times, the connection bridge (2) is considered to be complete.
3. The detection method of the photovoltaic cleaning device according to claim 1, characterized in that when at least one sensing unit (4) is provided on the photovoltaic cleaning equipment (3), if the photovoltaic cleaning equipment (3) determines that the connecting bridge (2) is in failure during the cleaning of the photovoltaic module (1), the photovoltaic cleaning equipment (3) stops passing through the failed connecting bridge (2).
4. The detection method of the photovoltaic cleaning device according to claim 1, wherein the detection data is transmitted to the photovoltaic cleaning device (3) through a background management system, and the photovoltaic cleaning device (3) can compare the detection data with the preset data to determine whether the connecting bridge (2) is obstructed.
5. The detection method of the photovoltaic cleaning device according to claim 1, characterized in that when the sensing unit (4) is installed at one side of the photovoltaic module (1) close to the connecting bridge (2), if the connecting bridge (2) is determined to be in failure, the photovoltaic cleaning equipment (3) stops passing through the failed connecting bridge (2).
6. The detection method of the photovoltaic cleaning device according to claim 1, wherein when the sensing unit (4) is mounted on the connecting bridge (2), if the connecting bridge (2) is determined to be faulty, the photovoltaic cleaning equipment (3) stops passing through the faulty connecting bridge (2).
7. The detection method of the photovoltaic cleaning device according to claim 1, wherein the sensing unit (4) comprises at least one of a photoelectric output sensing unit, an analog output sensing unit and an image acquisition sensing unit.
8. The method as claimed in claim 7, wherein the photo-electric output sensor unit comprises at least one of an infrared photoelectric switch sensor, a correlation type photoelectric switch sensor, a diffuse reflection type photoelectric switch sensor, a limit switch sensor, and a proximity switch sensor.
9. The detection method of the photovoltaic cleaning device as claimed in claim 7, wherein the analog output sensing unit comprises at least one of a laser ranging sensor, an ultrasonic sensor, a millimeter wave radar sensor, a pressure sensor and a displacement sensor.
10. The detection method of the photovoltaic cleaning device according to claim 1, characterized in that one sensing unit (4) on the cantilever of the photovoltaic cleaning device (3) determines that the connecting bridge (2) is in an obstacle, and when another sensing unit (4) on the same cantilever determines that the connecting bridge (2) is complete, the connecting bridge (2) is complete.
11. A photovoltaic power generation system, characterized in that the photovoltaic power generation system is inspected by the inspection method of the photovoltaic sweeping device according to any one of claims 1 to 10, and the photovoltaic power generation system comprises:
the photovoltaic modules (1) are distributed at intervals;
the two ends of the connecting bridge (2) are respectively connected with the two adjacent photovoltaic modules (1);
a photovoltaic sweeping device (3) for sweeping the photovoltaic module (1);
the induction unit (4) is arranged on at least one of the photovoltaic sweeping equipment (3), one side of the photovoltaic module (1) close to the connecting bridge (2) and the connecting bridge (2).
12. The photovoltaic power generation system according to claim 11, wherein the connecting bridge (2) is disposed between two adjacent photovoltaic modules (1), a distance between two adjacent photovoltaic modules (1) in the remaining photovoltaic modules (1) is a first distance, at least one cantilever is disposed on the photovoltaic sweeping device (3), two sensing units (4) are disposed on one cantilever, a distance between two sensing units (4) is a second distance, and the second distance is greater than the first distance.
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| CN202011398909.9A CN112577545B (en) | 2020-12-01 | 2020-12-01 | Detection method of photovoltaic cleaning device and photovoltaic power generation system |
| AU2021257936A AU2021257936B2 (en) | 2020-12-01 | 2021-10-26 | Method for inspecting connection bridge in photovoltaic array, and photovoltaic power generation system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024015978A3 (en) * | 2022-07-14 | 2024-03-07 | Evermore United S.A. | Rail bridge for solar panel service vehicle with detachment recovery |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08206616A (en) * | 1995-02-02 | 1996-08-13 | Norikata Taguma | Cleaning device for solar battery by wave force |
| CN104980107A (en) * | 2015-04-27 | 2015-10-14 | 张意铃 | Detection system and detection method for detecting faults of photovoltaic module |
| US20150349706A1 (en) * | 2014-06-03 | 2015-12-03 | Sunpower Corporation | Solar module cleaner |
| WO2017145194A1 (en) * | 2016-02-24 | 2017-08-31 | 株式会社 スカイロボット | Cleaning device for photovoltaic power generation panel |
| US20170331417A1 (en) * | 2016-05-13 | 2017-11-16 | Boson Robotics Ltd. | Cleaning mechanism having self-locking function and photovoltaic panel cleaning equipment having same |
| CN206701782U (en) * | 2016-11-15 | 2017-12-05 | 南京绿谷信息科技有限公司 | A kind of photovoltaic array cleaning device |
| WO2018145631A1 (en) * | 2017-02-10 | 2018-08-16 | 苏州瑞得恩光能科技有限公司 | Solar panel cleaning robot positioning device and positioning method thereof |
| KR20190038091A (en) * | 2017-09-29 | 2019-04-08 | 한국전기연구원 | Method for diagnosing fault of photovoltaic system and apparatus thereof |
| CN110138329A (en) * | 2019-06-19 | 2019-08-16 | 珠海思略智能科技有限公司 | Cleaning running gear crosses slope control assembly and photovoltaic array |
| WO2019215756A1 (en) * | 2018-05-11 | 2019-11-14 | Samir Shriram Bagalkote | Automated system for cleaning of solar photovoltaic panels in solar array and method thereof |
| CN209710027U (en) * | 2019-06-19 | 2019-11-29 | 珠海思略智能科技有限公司 | Photovoltaic cells and photovoltaic array |
| CN110715605A (en) * | 2019-10-18 | 2020-01-21 | 阳光电源股份有限公司 | Method, device and system for detecting running position of photovoltaic module cleaning robot |
| CN110882970A (en) * | 2019-11-22 | 2020-03-17 | 深圳怪虫机器人有限公司 | Photovoltaic cleaning robot with photovoltaic board detection component |
| JP2020069460A (en) * | 2018-10-31 | 2020-05-07 | 孝一 中川 | Solar panel cleaning device |
| CN111123937A (en) * | 2019-12-27 | 2020-05-08 | 南京天创电子技术有限公司 | Cleaning robot control method based on automatic obstacle crossing and control system thereof |
| CN111147011A (en) * | 2020-01-06 | 2020-05-12 | 南京天创电子技术有限公司 | A clean robot bridging track for photovoltaic tracking support |
| CN210899066U (en) * | 2019-12-27 | 2020-06-30 | 南京天创电子技术有限公司 | A clean robot automatic connection formula bridging device for photovoltaic tracking support |
| CN211027224U (en) * | 2019-09-16 | 2020-07-17 | 李海涛 | Photovoltaic module hidden crack detection cleaning robot |
| CN111438155A (en) * | 2020-05-09 | 2020-07-24 | 南京索能多思智能科技有限公司 | Intelligent soft braking stop control system and method for photovoltaic module cleaning robot |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206180954U (en) * | 2016-09-12 | 2017-05-17 | 深圳创动科技有限公司 | Solar cell panel service equipment and running gear thereof |
-
2020
- 2020-12-01 CN CN202011398909.9A patent/CN112577545B/en active Active
-
2021
- 2021-10-26 AU AU2021257936A patent/AU2021257936B2/en active Active
Patent Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08206616A (en) * | 1995-02-02 | 1996-08-13 | Norikata Taguma | Cleaning device for solar battery by wave force |
| US20150349706A1 (en) * | 2014-06-03 | 2015-12-03 | Sunpower Corporation | Solar module cleaner |
| CN104980107A (en) * | 2015-04-27 | 2015-10-14 | 张意铃 | Detection system and detection method for detecting faults of photovoltaic module |
| CN204810230U (en) * | 2015-04-27 | 2015-11-25 | 张意铃 | Detect system for among photovoltaic module fault detection |
| WO2016172810A1 (en) * | 2015-04-27 | 2016-11-03 | 张意铃 | Thermal-infrared detection system applied to photovoltaic module fault detection |
| WO2017145194A1 (en) * | 2016-02-24 | 2017-08-31 | 株式会社 スカイロボット | Cleaning device for photovoltaic power generation panel |
| US20170331417A1 (en) * | 2016-05-13 | 2017-11-16 | Boson Robotics Ltd. | Cleaning mechanism having self-locking function and photovoltaic panel cleaning equipment having same |
| CN206701782U (en) * | 2016-11-15 | 2017-12-05 | 南京绿谷信息科技有限公司 | A kind of photovoltaic array cleaning device |
| WO2018145631A1 (en) * | 2017-02-10 | 2018-08-16 | 苏州瑞得恩光能科技有限公司 | Solar panel cleaning robot positioning device and positioning method thereof |
| KR20190038091A (en) * | 2017-09-29 | 2019-04-08 | 한국전기연구원 | Method for diagnosing fault of photovoltaic system and apparatus thereof |
| WO2019215756A1 (en) * | 2018-05-11 | 2019-11-14 | Samir Shriram Bagalkote | Automated system for cleaning of solar photovoltaic panels in solar array and method thereof |
| JP2020069460A (en) * | 2018-10-31 | 2020-05-07 | 孝一 中川 | Solar panel cleaning device |
| CN209710027U (en) * | 2019-06-19 | 2019-11-29 | 珠海思略智能科技有限公司 | Photovoltaic cells and photovoltaic array |
| CN110138329A (en) * | 2019-06-19 | 2019-08-16 | 珠海思略智能科技有限公司 | Cleaning running gear crosses slope control assembly and photovoltaic array |
| CN211027224U (en) * | 2019-09-16 | 2020-07-17 | 李海涛 | Photovoltaic module hidden crack detection cleaning robot |
| CN110715605A (en) * | 2019-10-18 | 2020-01-21 | 阳光电源股份有限公司 | Method, device and system for detecting running position of photovoltaic module cleaning robot |
| CN110882970A (en) * | 2019-11-22 | 2020-03-17 | 深圳怪虫机器人有限公司 | Photovoltaic cleaning robot with photovoltaic board detection component |
| CN111123937A (en) * | 2019-12-27 | 2020-05-08 | 南京天创电子技术有限公司 | Cleaning robot control method based on automatic obstacle crossing and control system thereof |
| CN210899066U (en) * | 2019-12-27 | 2020-06-30 | 南京天创电子技术有限公司 | A clean robot automatic connection formula bridging device for photovoltaic tracking support |
| CN111147011A (en) * | 2020-01-06 | 2020-05-12 | 南京天创电子技术有限公司 | A clean robot bridging track for photovoltaic tracking support |
| CN111438155A (en) * | 2020-05-09 | 2020-07-24 | 南京索能多思智能科技有限公司 | Intelligent soft braking stop control system and method for photovoltaic module cleaning robot |
Non-Patent Citations (3)
| Title |
|---|
| MASOOD UL HASSAN ET.AL: "Towards autonomous cleaning of photovoltaic modules: Design and realization of a robotic cleaner", 《2017 FIRST INTERNATIONAL CONFERENCE ON LATEST TRENDS IN ELECTRICAL ENGINEERING AND COMPUTING TECHNOLOGIES》 * |
| 段春艳等: "光伏电站运维机器人的结构设计与控制功能优化", 《通信电源技术》 * |
| 王海峰等: "适用于大规模光伏阵列的无水清扫机器人", 《可再生能源》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024015978A3 (en) * | 2022-07-14 | 2024-03-07 | Evermore United S.A. | Rail bridge for solar panel service vehicle with detachment recovery |
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| CN112577545B (en) | 2022-09-13 |
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