TWI832301B - Dirt detection system and its dirt detection device - Google Patents

Abstract

A dirt detection device includes a container, a battery, a dirt detection module, a photovoltaic device and a mainboard module. The container is formed with a recess formed on the top of the container, and a transparent cover covering the recess. The dirt detection module is located in the recess to detect the shading degree of the transparent cover that is covered. The photovoltaic device is disposed on the container to generate and transmit electric energy into the battery. The mainboard module is electrically connected to the dirt detection module, the battery and the photovoltaic device, and connected to a main server through a network structure, so as to respectively transmit power supply value of the electric energy and the shading degree of the transparent cover to the main server.

Description

Dirt detection system and dirt detection device

The present invention relates to a detection system, in particular to a dirt detection system and a dirt detection device thereof.

Press, the surfaces of many objects (such as telescopes, building glass or solar panels, etc.) need to be cleaned regularly to maintain their original appearance or service performance. For example, when current solar power plants are built, multiple solar modules are usually arranged side by side in order, and then the electric energy generated by the solar modules is input into the mains system and resold to the electricity sales unit.

However, since solar panels are located outdoors, dust accumulated on the solar modules for a long time, sludge mixed with dust due to rain, or snow or frost caused by cold weather will all affect solar energy. The photoelectric conversion efficiency of the module. The current countermeasures can only take the form of regular manual patrols to eliminate contamination of the solar light-receiving surface. In this way, since the progress of pollution is very difficult to predict, it is necessary to shorten the manpower patrol interval, thereby increasing labor costs and cleaning costs.

It can be seen that the above technology obviously still has inconveniences and defects, and some To be further improved. Therefore, how to effectively solve the above inconveniences and defects is indeed one of the current important research and development topics, and it has also become an urgent need for improvement in related fields.

One object of the present invention is to provide a dirt detection system and a dirt detection device thereof to solve the above difficulties mentioned in the prior art.

One embodiment of the present invention provides a dirt detection device. The dirt detection device includes a container, a power battery, a dirt detection module, a photovoltaic device and a motherboard module. The container has a body, a slot and a light-transmitting cover. The main body is used to be disposed on a power generation module, the slot is formed on the top of the main body, and the light-transmitting cover covers the slot. The dirt detection module is located in the slot and is used to detect the degree of occlusion of the light-transmitting cover by foreign matter. The photovoltaic device is located on the body and is used to generate and transmit electrical energy to the power battery. The mainboard module is located in the slot, and the mainboard module includes a communication unit and a control unit. The communication unit is connected to a host server through a network infrastructure. The control unit is electrically connected to the dirt detection module, the power supply battery, the communication unit and the photovoltaic device, and is used to transmit the power supply value of the electric energy generated by the photovoltaic device and the shielding degree of the light-transmitting cover to the main server respectively.

According to one or more embodiments of the present invention, in the above-mentioned dirt detection device, the light-transmitting cover is a single light-transmitting plate, and the single light-transmitting plate is divided into a first area and a second area. The photovoltaic device is directly integrated into the first area of the single light-transmitting plate, and the dirt detection module faces the second area of the single light-transmitting plate from the inside of the slot to detect the degree to which the second area is blocked by foreign objects.

According to one or more embodiments of the present invention, in the above-mentioned dirt detection In the device, the dirt detection module includes at least one output unit and a receiving unit. The output unit is located in the slot and is electrically connected to the control unit for emitting energy waves toward the light-transmitting cover. The receiving unit is located in the slot and is electrically connected to the control unit for receiving the reflected signal returned from the light-transmitting cover, so that the control unit transmits the reflected signal to the main server.

According to one or more embodiments of the present invention, in the above-mentioned dirt detection device, the output unit includes a plurality of output units, and the output units are spaced around the receiving unit.

According to one or more embodiments of the present invention, in the above-mentioned dirt detection device, the output unit is a light transmitter and the receiving unit is a light sensor; or the output unit is an ultrasonic transmitter and the receiving unit is an ultrasonic wave receiver.

According to one or more embodiments of the present invention, in the above-mentioned dirt detection device, the dirt detection module includes a camera unit. The camera unit is located in the slot and is electrically connected to the control unit for capturing images toward the light-transmitting cover for the control unit to transmit the images to the main server.

According to one or more embodiments of the present invention, in the above-mentioned dirt detection device, the motherboard module further includes a global positioning system (GPS) unit. The global positioning system (GPS) unit is electrically connected to the control unit to obtain the coordinate position of the container, so that the control unit transmits the coordinate position to the main server.

According to one or more embodiments of the present invention, in the above-mentioned contamination detection device, the global positioning system (GPS) unit further obtains the absolute time of the location of the container, so that the control unit controls the contamination detection module according to the absolute time. switch.

One embodiment of the present invention provides a dirt detection system suitable for detecting whether the surface of a test object is dirty. The dirt detection system includes a main server and a dirt detection device. The dirt detection device includes a container, a power battery, a dirt detection module, a photovoltaic device and a motherboard module. The container has a body, a slot and a light-transmitting cover. The main body is arranged on the object under test, the slot is formed on the top of the main body, and the light-transmitting cover covers the slot. The dirt detection module is located in the slot and is used to detect the degree of occlusion of the light-transmitting cover by foreign matter. The photovoltaic device is located on the body and is used to generate and transmit electrical energy to the power battery. The motherboard module is located in the slot and is electrically connected to the dirt detection module, power supply battery and photovoltaic device. It is also connected to the main server through a network architecture to separately calculate the power supply value and light transmission of the electric energy generated by the photovoltaic device. The degree of occlusion of the mask is sent to the main server. In this way, the main server determines whether the shielding degree of the light-transmitting cover exceeds a preset threshold and determines whether the power supply value of the photovoltaic device is within an expected range; and when the main server determines that the shielding degree exceeds the preset threshold and determines the shielding degree When the surface is not within the expected range, the main server will send out a surface dirty alarm.

According to one or more embodiments of the present invention, in the above-mentioned dirt detection system, the light-transmitting cover is a single light-transmitting plate, and the single light-transmitting plate is divided into a first area and a second area. The photovoltaic device is directly integrated into the first area of a single light-transmitting panel. The dirt detection module faces the second area of the single light-transmitting plate from the inside of the slot to detect the degree of obstruction of the second area by foreign objects.

According to one or more embodiments of the present invention, in the above-mentioned dirt detection system, the dirt detection module includes at least an output unit and a receiving unit. The output unit is located in the slot and is electrically connected to the motherboard module to face the light-transmitting The shield emits energy waves. The receiving unit is located in the slot and is electrically connected to the motherboard module for receiving the reflected signal returned from the light-transmitting cover. The mainboard module transmits the reflected signal to the main server, so that the main server can compare the difference between the reflected signal and the preset threshold.

According to one or more embodiments of the present invention, in the above-mentioned dirt detection system, the output unit includes a plurality of output units, and the output units are spaced around the receiving unit.

According to one or more embodiments of the present invention, in the above-mentioned dirt detection system, the output unit is a light transmitter, and the receiving unit is a light sensor; or, the output unit is an ultrasonic transmitter, and the receiving unit is an ultrasonic wave receiver.

According to one or more embodiments of the present invention, in the above-mentioned dirt detection system, the dirt detection module includes a camera unit. The camera unit is located in the slot and is electrically connected to the motherboard module for capturing images toward the light-transmitting cover, so that the motherboard module can transmit the images to the main server.

According to one or more embodiments of the present invention, in the above-mentioned pollution detection system, the step of the main server determining whether the power supply value of the photovoltaic device is within the expected range further includes the following steps. The main server collects the ideal power supply value of the photovoltaic device; the main server compares the power supply value of the photovoltaic device with the ideal power supply value and obtains a difference value; determines whether the difference value is within the expected range; and when it is determined that the difference value does not meet the expected range , the main server sends a surface dirty alarm to the outside world.

According to one or more embodiments of the present invention, in the above-mentioned dirt detection system, the motherboard module further includes a Global Positioning System (GPS) unit. The GPS The unit is used to obtain the coordinate position of the container, so that the motherboard module can transmit the coordinate position to the main server. The steps for the main server to determine whether the power supply value of the photovoltaic device is within the expected range includes several steps as follows. The main server obtains the meteorological data and real-time sunshine data of its location based on the coordinate position; the main server estimates an expected power supply value based on the meteorological data and real-time sunshine data; the main server compares the power supply value of the photovoltaic device with the expected power supply value. And obtain a difference value; and when it is determined that the difference value is not within the expected range, the main server issues a surface dirty alarm to the outside.

In this way, through the structures described in the above embodiments, the present invention can accurately determine whether the object under test is contaminated, and can dispatch manpower in time to eliminate abnormalities, thereby stabilizing the manpower patrol interval and saving labor and cleaning costs.

The above is only used to describe the problems to be solved by the present invention, the technical means to solve the problems, the effects thereof, etc. The specific details of the present invention will be introduced in detail in the following embodiments and related drawings.

10, 11: Dirt detection system

100: Main server

200:Solar array

210:Frame

220:Inverter

230: Power generation module

300, 301, 302: Dirt detection device

310:Container

320:Ontology

321:Top

330: Grooving

331:bottom

340:Support flange

341: Accommodation tank

342:Storage slot

350: Transparent cover

351:Single light-transmitting plate

351A: District 1

351B:Second District

400, 401: Dirt detection module

410:Wiring board

420: Receiving unit

430:Output unit

440:Camera unit

500: Photovoltaic installation

510:Photovoltaic panel

520:junction box

600:Power battery

700: Motherboard module

710:Circuit board

720: Communication unit

730:Storage unit

740:GPS unit

750:Control unit

760:Antenna unit

801~805: Steps

B:Stud

C: Wire

D: Test object

L1:Light

L2: Reflected light

N: Network architecture

S: weather database

T: terminal

In order to make the above and other objects, features, advantages and embodiments of the present invention more clearly understood, the accompanying drawings are described as follows: Figure 1 is a schematic diagram of a dirt detection system according to an embodiment of the present invention; Figure 2 Figure 1 is a schematic diagram of the dirt detection device in Figure 1; Figure 3 is a block diagram of the dirt detection device in Figure 1; Figure 4 is a schematic diagram of the dirt detection device in one embodiment of the present invention; Figure 5 shows an embodiment of the present invention applied to pollution detection in solar power plants. A schematic diagram of the system; and Figure 6 is a flow chart of a dirt detection method according to an embodiment of the present invention.

The following will disclose multiple embodiments of the present invention in the drawings. For the sake of clarity, many practical details will be explained in the following description. However, it will be understood that these practical details should not limit the invention. That is to say, in various embodiments of the present invention, these practical details are not necessary. In addition, for the sake of simplifying the drawings, some commonly used structures and components will be illustrated in a simple schematic manner in the drawings.

Figure 1 is a schematic diagram of a dirt detection system 10 according to an embodiment of the present invention. Figure 2 is a schematic diagram of the dirt detection device 300 of Figure 1 . Figure 3 is a block diagram of the dirt detection device 300 of Figure 1 . As shown in Figures 1 to 3, the dirt detection system 10 is used to determine whether the surface of a test object D is dirty. The dirt detection system 10 includes a main server 100 and at least one dirt detector. Device 300. The main server 100 is connected to the dirt detection device 300 through a network architecture N. The dirt detection device 300 is physically placed on the object D to detect whether the surface of the object D is dirty.

It should be understood that the present invention is not limited to the type of the object D under test. The object D under test is, for example, a telescope, building glass, or solar panel.

The dirt detection device 300 includes a container 310, a power supply battery 600, a dirt detection module 400, a photovoltaic device 500 and a motherboard module 700. The container 310 has a body 320, a slot 330 and a light-transmitting cover 350. The main body 320 is arranged next to the object D under test. Slotting 330 formed on the top 321 of the body 320. The translucent cover 350 covers the slot 330, and the translucent cover 350 completely covers the slot 330 of the container 310. The dirt detection module 400 is located in the slot 330, facing the light-transmitting cover 350, and detects the degree of shielding of the light-transmitting cover 350 by foreign matter. The photovoltaic device 500 is located next to the object D. In this embodiment, the photovoltaic device 500 is a single one and is located on the body 320 . The mainboard module 700 is electrically connected to the dirt detection module 400, the power supply battery 600, the communication unit 720 and the photovoltaic device 500, and is connected to the main server 100 through the network architecture N to respectively convert the electric energy generated by the photovoltaic device 500. The power supply value and the shielding degree of the light-transmitting cover 350 are transmitted to the main server 100 . In this embodiment, the power supply battery 600 is located in the container 310, and the photovoltaic device 500 is located in the slot 330 to generate and transmit electrical energy to the power supply battery 600. The power supply battery 600 can supply various components of the dirt detection device 300. operating power, however, the present invention is not limited thereto.

Therefore, the main server 100 determines whether the shielding degree of the light-transmitting cover 350 exceeds a preset threshold, and determines whether the power supply value of the photovoltaic device 500 is within an expected range. When the main server 100 determines that the degree of occlusion exceeds the preset threshold and determines that the degree of occlusion is not within the expected range, the main server 100 will send an external message to a terminal T (such as a mobile phone, computer or other cloud server). A surface dirty alert (such as text message, email or other audio and video signal).

In this way, through the above structure, the present invention can accurately determine whether the surface of the object under test is contaminated, and can dispatch manpower in time to eliminate abnormalities, thereby stabilizing the manpower patrol interval and saving labor and cleaning costs.

More specifically, in this embodiment, the power supply battery 600, the motherboard The module 700 and the dirt detection module 400 are both fixedly disposed at the bottom 331 of the slot 330 , and the power supply battery 600 , the dirt detection module 400 and the motherboard module 700 are spaced apart from each other. The mainboard module 700 is located between the power supply battery 600 and the dirt detection module 400, and is electrically connected to the photovoltaic device 500 and the dirt detection module 400 through wires C respectively.

Furthermore, the motherboard module 700 includes a circuit board 710, a communication unit 720, a storage unit 730 and a control unit 750. The circuit board 710 is locked to the bottom 331 of the slot 330 through several studs B, and the communication unit 720, the storage unit 730 and the control unit 750 are respectively welded to the circuit board 710. The communication unit 720 connects to the main server 100 through the above-mentioned network architecture N. The storage unit 730 stores any numerical information or temporary data transmitted from the dirt detection module 400 and the photovoltaic device 500, as well as a control program for performing specific tasks and work. The control program is not limited to software, Exists in the form of firmware and/or programs. The control unit 750 is electrically connected to the dirt detection module 400, the power supply battery 600, the communication unit 720, the storage unit 730 and the photovoltaic device 500, and is used to respectively control the power supply value of the electric energy generated by the photovoltaic device 500 and the shielding of the light-transmitting cover 350. Levels are transmitted to the main server 100 respectively.

The communication unit 720 is electrically connected to the main server 100 through a wireless manner, such as wirelessly connecting to the main server 100 through the antenna unit 760 . The communication unit 720 can support, for example, Global System for Mobile communication (GSM), Personal Handy-phone System (PHS), Code Division Multiple Access (CDMA) system system, Wideband Code Division Multiple Access (WCDMA) system, Long Term Evolution (LTE) system, Worldwide interoperability for Microwave Access (WiMAX) system, Wireless Fidelity (Wireless Fidelity, Wi-Fi) system or Bluetooth (Blue Tooth) and other communication protocols, but the invention is not limited thereto.

In addition, the motherboard module 700 further includes a global positioning system (GPS) unit 740 . The GPS unit 740 is welded on the circuit board 710 and is electrically connected to the control unit 750 for obtaining the coordinate position and absolute position of the dirt detection device 300 (ie, the container 310 or the object D) through the satellite signal through the antenna unit 760 time, so that the control unit 750 transmits the coordinate position to the main server 100 . Since the dirt detection module 400 does not need to perform dirt detection around the clock, when the specific absolute time arrives, the control unit 750 immediately activates and deactivates the dirt detection module 400 through the control program stored in the storage unit 730. In order to save energy and slow down the loss of product life.

For example, the communication unit 720 is not limited to various communication chips, mobile communication chips, Bluetooth chips, Long Term Evolution (LTE) chips or WiFi chips, etc.; the control unit 750 is a central processor, a single chip or a Microcontroller; the storage unit 730 is a removable random access memory, flash memory or hard disk; the GPS unit 740 is not limited to various types of GPS chips, and the GPS unit 740 supports, for example, Global Navigation Satellite System (Global Navigation) Satellite System, GNSS) and other protocols, the network architecture N is not limited to the Internet, WIFI wireless lines, internal physical lines (Intranet) or external physical lines (Extranet) belonging to the same enterprise or organization, etc., but the present invention is not limited to the above aspects.

Furthermore, the dirt detection module 400 includes a wiring board 410 , a receiving unit 420 and a plurality of output units 430 . The wiring board 410 is locked to the bottom 331 of the slot 330 through several studs B, and the receiving unit 420 and the output unit 430 are respectively welded to the wiring board 410, and these output units 430 surround the receiving unit 420 at intervals. The output unit 430 is electrically connected to the control unit 750 and is used to emit energy waves toward the light-transmitting cover 350 . The receiving unit 420 is electrically connected to the control unit 750 and is used to receive the reflected signal returned from the light-transmitting cover 350 so that the control unit 750 transmits the reflected signal to the main server 100 .

In this embodiment, for example, each output unit 430 is a light emitter (such as a light emitting diode or an infrared diode), and the receiving unit 420 is a light sensor (such as a photodiode). In this way, when the light emitter emits light L1 toward the light-transmitting cover 350 , part of the light L1 penetrates the light-transmitting cover 350 , and another part of the light L1 is reflected by the light-transmitting cover 350 and returns to the dirt detection module 400 . Therefore, when the photo sensor receives the reflected light L2 returned from the light-transmitting cover 350, the photo sensor converts the received reflected light L2 into a photoelectric signal. However, the light of the light emitter is not limited to visible light or invisible light.

Therefore, after the photoelectric signal is transmitted to the main server 100, the main server 100 compares the difference between the photoelectric signal and the preset threshold to determine the degree of contamination on the surface of the light-transmitting cover 350 and the object D, thereby Decide Whether to issue a surface dirty alarm to the outside world.

It should be understood that if the light-transmitting cover 350 is covered by foreign matter (such as dust, pollen, poultry excrement or a combination thereof), the light sensor will obtain a stronger photoelectric signal compared to a light-transmitting cover 350 with a clean surface. . In this way, according to the difference in photoelectric signals, the dirt detection module 400 can help determine the degree of shielding of the light-transmitting cover 350 by foreign matter.

However, the present invention is not limited to this. In other embodiments, the dirt detection module 400 can also replace the output unit 430 with an ultrasonic transmitter and the receiving unit 420 with an ultrasonic receiver.

Furthermore, a supporting flange 340 is protruding from the opening of the slot 330. The supporting flange 340 surrounds an accommodating groove 341 for placing the light-transmitting cover 350. The light-transmitting cover 350 is placed flatly in the accommodating groove 341. , so that the light-transmitting cover 350 is completely embedded in the receiving groove 341, and the outer surface of the light-transmitting cover 350 is flush with the top 321 of the container 310. In addition, a portion of the supporting flange 340 has a receiving groove 342 for receiving the photovoltaic device 500 .

Furthermore, the light-transmitting cover 350 is a single light-transmitting plate 351 (such as a glass plate or an acrylic plate). The single light-transmitting plate 351 is divided into a first area 351A and a second area 351B along the horizontal direction. The first area 351A and the second area 351B are adjacent to each other, and there is no physical boundary between the first area 351A and the second area 351B. The photovoltaic device 500 is only located in the first area 351A of the single light-transmitting plate 351 and is directly integrated into the side of the first area 351A of the single light-transmitting plate 351 facing the main board module 700 . The photovoltaic device 500 is directly integrated into the side of the single light-transmitting plate 351 facing the mainboard module 700 (hereinafter referred to as the inner surface), and the photovoltaic device 500 is only located in the first area 351A. In other words, the photovoltaic device 500 The area covering the single light-transmitting plate 351 is the first area 351A of the single light-transmitting plate 351, and the remaining area is the second area 351B. However, the present invention is not limited thereto. The dirt detection module 400 faces the second area 351B of the single light-transmitting plate 351 and is used to detect the degree to which the second area 351B is blocked by foreign objects.

More specifically, the photovoltaic device 500 includes a photovoltaic panel 510 and a junction box 520 . The photovoltaic panel 510 is placed flat in the storage slot 342 and is directly attached to the inner surface of the single light-transmitting plate 351. The junction box 520 is located on the side of the support flange 340 facing away from the storage slot 342, and is electrically connected to the photovoltaic panel 510 and the power supply battery. 600 and the mainboard module 700 are used to transmit the electric energy generated by the photovoltaic panel 510 to the power supply battery 600, and transmit the power supply value of the electric energy to the mainboard module 700.

Figure 4 is a schematic diagram of a dirt detection device 301 according to an embodiment of the present invention. As shown in Figure 4, the dirt detection device 301 of this embodiment is roughly the same as the dirt detection device 300 of Figure 1. The difference is that the dirt detection module 401 of this embodiment can also receive The unit 420 and the output unit 430 are replaced by the camera unit 440. The camera unit 440 is located in the slot 330 and is welded to the wiring board 410 . The camera unit 440 is electrically connected to the control unit 750 and is used to capture images toward the light-transmitting cover 350 for the control unit 750 to transmit the images to the main server 100 .

It should be understood that if the light-transmitting cover 350 is covered with foreign matter (such as dust, pollen, poultry excrement or a combination thereof), the image captured by the camera unit 440 will cover a wider area than a light-transmitting cover 350 with a clean surface. Lots of shadows. In this way, depending on the amount of shadows in the image, the dirt detection module 401 can help determine the degree of occlusion of the light-transmitting cover 350 by foreign matter.

Figure 5 is a schematic diagram of a pollution detection system 11 applied to a solar power plant according to an embodiment of the present invention. As shown in Figure 5, the dirt detection device 302 of this embodiment is roughly the same as the dirt detection device 300 of Figure 1. The difference is that the dirt detection system 11 is applied to the solar power plant and is tested. The object includes a solar array 200. The solar array 200 is connected to the main server 100 through the network architecture N. The solar array 200 includes a frame 210, an inverter 220 and a plurality of power generation modules 230. Each of these power generation modules 230 is a solar module and is arranged on the frame 210 . These power generation modules 230 are arranged in an array. The inverter 220 is electrically connected to the power generation modules 230 respectively, and is connected to the main server 100 through the network architecture N, so as to receive the power supply values of the power generation modules 230 and output them to the main server 100 . In this way, when the main server 100 issues a surface contamination alarm, the controller can infer that the solar light-receiving surface of the adjacent power generation module 230 is also contaminated to the same extent, and thus performs subsequent cleaning procedures.

However, the present invention is not limited to this debugging mechanism. In other embodiments, when the main server 100 determines that the surface of the light-transmitting cover 350 is dirty, the main server 100 continues to compare the power generation modules of the solar array 200 When the power supply value of 230 is approximately the same as the power supply value of the photovoltaic device 500, the main server 100 will issue a surface dirty alarm. Therefore, it can be inferred that the solar light-receiving surface of the adjacent power generation module 230 is also polluted to the same extent, and subsequent cleaning procedures are performed.

Figure 6 is a flow chart of a dirt detection method according to an embodiment of the present invention. As shown in Figure 6, in this embodiment, the dirt detection method includes steps 801 to 805, as follows.

In step 801, an energy wave is emitted to a light-transmitting cover and a reflected signal returned from the light-transmitting cover is received to obtain the degree of shielding of the light-transmitting cover by foreign objects. In step 802, it is determined whether the shielding degree of the light-transmitting cover exceeds a preset threshold. If so, proceed to step 803; otherwise, return to step 801. In step 803, the power supply value of the electric energy generated by the photovoltaic device is obtained. In step 804, it is determined whether the power supply value of the photovoltaic device is within an expected range. If so, return to step 803; otherwise, proceed to step 805. In step 805, a surface contamination alarm is issued externally.

However, the present invention is not limited thereto. In other embodiments, the order of steps 801 to 802 and steps 803 to 804 may also be executed alternately.

More specifically, in a detailed option of this embodiment, in step 804, the main server 100 performs the following detailed steps.

First, the main server 100 collects the ideal power supply value of the photovoltaic device 500 (for example, the best recent performance just after installation); then, the main server 100 compares the power supply value of the photovoltaic device 500 with the ideal power supply value of the photovoltaic device 500, and Obtain the difference value between the two; then, determine whether the difference value meets the above expected range. If so, return to step 803; otherwise, continue to step 805.

More specifically, in a detailed option of this embodiment, in step 804, as shown in Figures 1 to 3, the main server 100 performs the following detailed steps. First, the main server 100 obtains the coordinate position of the solar energy field. For example, the host server 100 obtains the coordinate position and absolute time through the GPS unit 740; then, obtains the weather data and real-time sunshine of the location of the dirt detection device 300 (ie, the container 310 or the object D) based on the coordinate position. material. For example, the main server 100 uses a The weather database S obtains the weather data of the day, and the main server 100 estimates the expected power supply value of a photovoltaic device 500 based on absolute time, coordinate position, weather data, seasonal time, dynamic changes in cloud clusters, solar elevation angle and azimuth angle, and The main server 100 obtains the expected power supply value through a lookup table. The comparison table includes historical variables and corresponding expected power supply values; then, the power supply value of the photovoltaic device 500 is compared with the expected power supply value, and a difference value is obtained; and when it is determined whether the difference value is within the expected range, if so, return to step 803. Otherwise, a surface dirty alarm will be issued.

It should be understood that the detailed options of the above step 804 may also be used simultaneously or sequentially.

Finally, the above disclosed embodiments are not intended to limit the present invention. Anyone skilled in the art can make various modifications and modifications without departing from the spirit and scope of the present invention, and all of them are protected by the present invention. Inventing. Therefore, the protection scope of the present invention shall be determined by the appended patent application scope.

300:Dirty detection device 310:Container 320:Ontology 321:Top 330: Grooving 331:bottom 340:Support flange 341: Accommodation tank 342:Storage slot 350: Transparent cover 351:Single light-transmitting plate 351A: District 1 351B:Second District 400:Dirty detection module 410:Wiring board 420: Receiving unit 430:Output unit 500: Photovoltaic installation 510:Photovoltaic panel 520:junction box 600:Power battery 700: Motherboard module 710:Circuit board 760:Antenna unit B:Stud C: Wire L1:Light L2: Reflected light

Claims (16)

A dirt detection device includes: a power supply battery; a container with a body, a slot and a light-transmitting cover. The body is used to be configured on at least one power generation module, and the slot is formed on the body. At the top, the light-transmitting cover covers the slot; a dirt detection module is located in the slot to detect the degree of shielding of the light-transmitting cover by foreign matter; a photovoltaic device is located on the body, with to generate and transmit power to the power battery; and a motherboard module located in the slot, including: a communication unit connected to a host server through a network architecture; and a control unit electrically connected to the dirty The detection module, the power battery, the communication unit and the photovoltaic device are used to respectively transmit the power supply value of the electric energy generated by the photovoltaic device and the shielding degree of the light-transmitting cover to the main server. The dirt detection device as claimed in claim 1, wherein the light-transmitting cover is a single light-transmitting plate, and the single light-transmitting plate is divided into a first area and a second area, and the photovoltaic device is directly integrated into the single light-transmitting plate. The first area of the light-transmitting plate, and the dirt detection module faces the second area of the single light-transmitting plate from the inside of the slot to detect the degree to which the second area is blocked by foreign matter. The dirt detection device of claim 1, wherein the dirt detection module includes: at least one output unit located in the slot and electrically connected to the control unit for emitting energy toward the light-transmitting cover wave; and a receiving unit located in the slot and electrically connected to the control unit for receiving the reflected signal returned from the light-transmitting cover, so that the control unit transmits the reflected signal to the main server. The dirt detection device of claim 3, wherein the at least one output unit includes a plurality of output units, and the output units are spaced around the receiving unit. The dirt detection device of claim 3, wherein the at least one output unit is a light transmitter, and the receiving unit is a light sensor; or the at least one output unit is an ultrasonic transmitter, and the receiving unit The unit is an ultrasonic receiver. The dirt detection device of claim 1, wherein the dirt detection module includes: a camera unit located in the slot and electrically connected to the control unit for capturing images toward the light-transmitting cover , for the control unit to transmit the image to the main server. The dirt detection device as described in claim 1, wherein the motherboard module further includes: a global positioning system (GPS) unit electrically connected to the control unit to obtain the coordinates of the location of the container for the The control unit transmits the coordinate position to the main server. The dirt detection device as described in claim 7, wherein the global positioning system (GPS) unit further obtains the absolute time of the location of the container for the control unit to control the dirt detection module based on the absolute time. switch. A dirt detection system, suitable for determining whether the surface of a test object is dirty, includes: a main server; and a dirt detection device, including: a power supply battery; a container having a body and a slot and a light-transmitting cover, the body is arranged on the object to be tested, the slot is formed on the top of the body, and the light-transmitting cover covers the slot; a dirt detection module is located in the slot, with To detect the degree of shielding of the light-transmitting cover by foreign matter; a photovoltaic device is located on the body to generate and transmit electrical energy to the power battery; and a motherboard module is located in the slot and is electrically connected to the Dirt detection module, The power supply battery and the photovoltaic device are connected to the main server through a network architecture for respectively transmitting the power supply value of the electric energy generated by the photovoltaic device and the shielding degree of the light-transmitting cover to the main server, The main server determines whether the shielding degree of the light-transmitting cover exceeds a preset threshold and determines whether the power supply value of the photovoltaic device is within an expected range; and when the main server determines that the shielding degree exceeds the preset threshold When the threshold is set and the degree of occlusion is determined not to be within the expected range, the main server will issue a surface dirty alarm to the outside world. The dirt detection system of claim 9, wherein the light-transmitting cover is a single light-transmitting plate, and the single light-transmitting plate is divided into a first area and a second area, and the photovoltaic device is directly integrated into the single light-transmitting plate. In the first area of the light-transmitting plate, the dirt detection module faces the second area of the single light-transmitting plate from the inside of the slot to detect the degree to which the second area is blocked by foreign matter. The dirt detection system of claim 9, wherein the dirt detection module includes: at least one output unit located in the slot and electrically connected to the motherboard module for emitting light toward the light-transmitting cover. energy wave; and a receiving unit located in the slot and electrically connected to the motherboard module for receiving the reflected signal returned from the light-transmitting cover, wherein the motherboard module transmits the reflected signal to the main servo The host server can compare the difference between the reflected signal and the preset threshold. The dirt detection system of claim 11, wherein the at least one output unit includes a plurality of output units, and the output units are spaced around the receiving unit. The dirt detection system of claim 11, wherein the at least one output unit is a light transmitter, and the receiving unit is a light sensor; or the at least one output unit is an ultrasonic transmitter, and the The receiving unit is an ultrasonic receiver. The dirt detection system of claim 9, wherein the dirt detection module includes: a camera unit located in the slot and electrically connected to the motherboard module for capturing images toward the light-transmitting cover Image for the motherboard module to transmit the image to the host server. The dirt detection system as described in claim 9, wherein the step of the main server determining whether the power supply value of the photovoltaic device is within the expected range further includes: the main server collects an ideal power supply of the photovoltaic device value; the main server compares the power supply value of the photovoltaic device with the ideal power supply value, and obtains a difference value; determines whether the difference value meets the expected range; and when it is determined that the difference value does not meet the expected range , the main The server sends an alarm to the outside world that the surface is dirty. The dirt detection system as described in claim 9, wherein the motherboard module further includes a global positioning system (GPS) unit, which is used to obtain the coordinates of the location of the container for the motherboard module to The coordinate position is transmitted to the main server; and the step of the main server judging whether the power supply value of the photovoltaic device is within the expected range further includes: the main server obtains the meteorological data of the location based on the coordinate position; Real-time sunshine data; the main server estimates an expected power supply value based on the meteorological data and the real-time sunshine data; the main server compares the power supply value of the photovoltaic device with the expected power supply value, and obtains a difference value; and When it is determined that the difference value is not within the expected range, the main server issues the surface dirty alarm to the outside.

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