Scanning type snow thickness measuring instrument for photovoltaic power station

Abstract

The utility model provides a photovoltaic power station scanning type snow thickness measuring instrument, which comprises a controller, a holder and a detector, and is characterized in that the controller is electrically connected with the holder and the detector; the holder comprises a base, a first rotating part and a second rotating part, the base is rotationally connected with the first rotating part, and the first rotating part is rotationally connected with the second rotating part; the detector is connected with the second rotating part and comprises a shell, a front end cover and a rear end cover are arranged at the two ends of the shell respectively, the front end cover is provided with a cover plate, a sensor hole is formed in the cover plate, a laser detector corresponding to the sensor hole is arranged in the shell, an integrated circuit module is further arranged in the shell, and the integrated circuit module is connected with the detector. And the integrated circuit module is electrically connected with the laser detector. And the holder realizes multi-angle scanning type measurement through linkage of the two rotating parts, so that the accuracy of measured data is ensured.

Description

Technical Field

[0001] The utility model relates to a meteorological monitoring instrument, in particular to a scanning snow thickness measuring instrument for a photovoltaic power station. Background Art

[0002] The fixed-point laser snow depth meter is the most commonly used snow depth measuring instrument on the market. It uses fixed installation, fixed angle, and fixed position to detect the snow depth at a certain point.

[0003] This form of snow depth detection is OK for flat ground or road surface, but it is limited and inaccurate for measuring the thickness of snow on the surface of photovoltaic power station modules. Because photovoltaic power station modules are installed at a certain inclination angle, snow falling on the modules will slide down under the action of gravity, eventually resulting in uneven distribution of snow thickness on the module surface from top to bottom. Therefore, it is not comprehensive to detect the snow thickness at a certain point on the module surface. Snow on the surface of photovoltaic modules will have the following effects on the modules:

[0004] 1. Increasing the load-bearing capacity of photovoltaic modules will cause deformation or damage to the photovoltaic modules, affecting the life and performance of the modules;

[0005] 2. Reduce the surface temperature of the photovoltaic panel, slow down the flow of current, and cause unstable current output;

[0006] 3. Snow covering the surface of photovoltaic panels will reflect sunlight, thus affecting the power generation of photovoltaic panels.

[0007] Therefore, the main problem to be solved in this application is to accurately measure the snow thickness on the surface of photovoltaic panels, provide real-time and accurate data to photovoltaic power station managers, and then quickly respond to clear the snow on the surface of photovoltaic panels. Summary of the invention

[0008] The purpose of the utility model is to provide a photovoltaic power station scanning snow thickness measuring instrument to address the defects in the above-mentioned technology. The detector is installed on a pan-tilt platform, and the pan-tilt platform realizes multi-angle scanning measurement through the linkage of two rotating parts, thereby ensuring the accuracy of the measurement data.

[0009] The purpose of the utility model is achieved as follows: it includes a controller, a pan-tilt head and a detector, the controller is electrically connected to the pan-tilt head and the detector; the pan-tilt head includes a base, a first rotating part and a second rotating part, the base is rotatably connected to the first rotating part, and the first rotating part is rotatably connected to the second rotating part; the detector is connected to the second rotating part, the detector includes a shell, a front end cover and a rear end cover are respectively provided at both ends of the shell, the front end cover is provided with a cover plate, a sensor hole is provided on the cover plate, a laser detector is provided in the shell corresponding to the sensor hole, a mounting plate is also provided in the shell, the mounting plate is fixedly connected to the shell by bolts, the laser detector is clamped between the mounting plate and the heat insulation plate, the mounting plate and the heat insulation plate are connected by bolts, a pad is provided between the tail of the laser detector and the mounting plate, a heating plate is provided between the laser detector and the heat insulation plate, and a temperature control module is provided below the heat insulation plate; an integrated circuit module is also provided in the shell, the integrated circuit module is fixedly connected to the mounting plate, and is electrically connected to the laser detector.

[0010] Preferably, the integrated circuit module includes a main control board, a power board and a communication board, and the main control board, the power board and the communication board are respectively fixed on the mounting plate by bolts.

[0011] Preferably, the front end cover is also provided with a power indicator light, a working condition indicator light and an alarm indicator light.

[0012] Preferably, a first fixing plate and a second fixing plate are provided inside the cover plate, the first fixing plate is connected to the cover plate, a mounting hole is provided on the first fixing plate corresponding to the sensor hole, the front end of the laser detector is embedded in the mounting hole, and the second fixing plate is connected to the first fixing plate.

[0013] Preferably, the rear end cover is provided with a first aviation socket and a second aviation socket.

[0014] Preferably, the pan / tilt base is connected to a bracket, the bracket includes a connecting plate and a supporting leg, the supporting leg is hinged to the connecting plate, a fixing plate is provided in the middle of the bracket, and the controller is connected to the fixing plate.

[0015] Preferably, the supporting leg comprises a sleeve, a supporting rod and a clamping portion, the sleeve is sleeved with the supporting rod, and the clamping portion limits the relative position of the sleeve and the supporting rod.

[0016] Preferably, the first rotating part and the second rotating part of the pan / tilt head are both provided with a photoelectric proximity switch and a gear limiter, and a gear limiter is respectively provided on the first gear and the second gear of the first rotating part and the second rotating part, and the photoelectric proximity switch and the gear limiter are arranged correspondingly.

[0017] The beneficial effects of the utility model are as follows: the detector is installed on the pan-tilt platform, which is linked with the first rotating part and the second rotating part to perform multi-angle two-dimensional spatial scanning measurement on the snow on the surface of the photovoltaic component, and can test up to 180 points, thereby accurately measuring the thickness of the snow on the surface of the component, and ensuring the accuracy of the measurement data; a heating plate and a temperature control module are provided, which can realize automatic temperature monitoring in extremely cold areas, automatically control the operation of the heating plate, heat the laser detector, and ensure its working state; a laser detector is selected as the core component of the snow depth sensor to replace the laser rangefinder, which reduces costs, power consumption, and heating power accordingly; the rotational position of the first rotating part and the second rotating part is controlled by the cooperation of the photoelectric proximity switch and the gear limiter, and the control is more precise. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model measuring instrument;

[0019] Figure 2 This is a schematic diagram of the assembly structure of the pan-tilt and detector of the utility model. Figure 1 ;

[0020] Figure 3 This is a schematic diagram of the assembly structure of the pan-tilt and detector of the utility model. Figure 2 ;

[0021] Figure 4 This is a schematic diagram of the assembly structure of the pan-tilt and detector of the utility model. Figure 3 ;

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the assembly of the pan / tilt and detector of the utility model;

[0023] Figure 6 yes Figure 5 Enlarged view of the middle part A;

[0024] Figure 7 It is a schematic diagram of the cross-sectional structure of the pan / tilt platform of the utility model. DETAILED DESCRIPTION

[0025] The present application provides a photovoltaic power station scanning snow thickness measuring instrument, the detector is installed on the pan-tilt platform, the pan-tilt platform is linked by the first rotating part and the second rotating part, and the snow on the surface of the photovoltaic module is scanned in a two-dimensional space with multiple angles. Up to 180 points can be tested, and the thickness of the snow on the surface of the module can be accurately measured, ensuring the accuracy of the measurement data. The problem that there is a certain angle when the photovoltaic module is installed, and there is inconsistency in snow thickness, while the snow thickness measuring instrument in the prior art can only measure at a fixed point and cannot provide accurate data is solved.

[0026] The following is a further description of this implementation case in conjunction with the accompanying drawings:

[0027] Depend on Figure 1 — Figure 7 It can be seen that the present application includes a controller 1, a gimbal 2 and a detector 3, and the controller 1 is electrically connected to the gimbal 2 and the detector 3; the gimbal 2 includes a base 201, a first rotating part 210 and a second rotating part 220, the base 201 is rotatably connected to the first rotating part 210, and the first rotating part 210 is rotatably connected to the second rotating part 220; the detector 3 is connected to the second rotating part 220, and the detector 3 includes a shell 310, and the shell 310 is respectively provided with a front end cover 311 and a rear end cover 312 at both ends, the front end cover 311 is provided with a cover plate 313, and the cover plate 313 is provided with a sensor hole 314, and a laser detector 320 is provided in the shell 310 corresponding to the sensor hole 314, and an integrated circuit module is also provided in the shell 310, and the integrated circuit module is electrically connected to the laser detector 320. In this embodiment, the detector 3 is connected to the pan-tilt platform 2, and the pan-tilt platform 2 is linked by the first rotating part 210 and the second rotating part 220 to perform multi-angle two-dimensional space scanning measurement on the snow on the surface of the photovoltaic module to ensure the accuracy of the measurement data. The first rotating part 210 is provided with a first stepper motor 211, and the first stepper motor 211 drives the first gear 212 to rotate, so that the first rotating part 210 rotates on the base 201, and the second rotating part 220 drives the pinion 222 to rotate through the second stepper motor 221, and the pinion 222 is meshed with the second gear 223, so that the second rotating part 220 rotates on the first rotating part 210. The housing 310 is also provided with a mounting plate 315, which is fixedly connected to the housing 310 by bolts, the integrated circuit module is fixedly connected to the mounting plate 315, the laser detector 320 is clamped between the mounting plate 315 and the heat insulation plate 316, the mounting plate 315 and the heat insulation plate 316 are connected by bolts, and a cushion block 317 is provided between the tail of the laser detector 320 and the mounting plate 315. A heating plate 318 is provided between the laser detector 320 and the heat insulation plate 316, and a temperature control module 319 is provided below the heat insulation plate 316. This device is generally used in winter. When the temperature control module 319 detects that the current temperature is lower than the set temperature point, the heating plate 318 is activated to ensure that the product is not affected by the external low temperature. The heat insulation plate 316 is provided between the temperature control module 319 and the heating plate 318 to prevent the heating plate 318 from interfering with the temperature control module 319.

[0028] Based on the above implementation, preferably, the integrated circuit module includes a main control board 341, a power board 342 and a communication board 343, and the main control board 341, the power board 342 and the communication board 343 are respectively fixed to the mounting plate 315 by bolts.

[0029] Based on the above implementation, preferably, the front cover 311 is also provided with a power indicator light 351, a working condition indicator light 352 and an alarm indicator light 353. The three indicator lights can be used to preliminarily judge the operating status of the equipment, making it convenient for staff to handle faults.

[0030] On the basis of the above embodiment, preferably, a first fixing plate 361 and a second fixing plate 362 are provided inside the cover plate 313, the first fixing plate 361 is connected to the cover plate 313, a mounting hole 363 is provided on the first fixing plate 361 corresponding to the sensor hole 314, the front end of the laser detector 320 is embedded in the mounting hole 363, and the second fixing plate 362 is connected to the first fixing plate 361.

[0031] Based on the above implementation, preferably, the rear end cover 312 is provided with a first aviation socket 371 and a second aviation socket 372, wherein one aviation socket is used for power supply and communication; the other aviation socket is used for the linkage output of the relay, which can control the alarm or snow removal equipment according to different alarm thresholds.

[0032] Based on the above implementation, preferably, the pan / tilt base 201 is connected to a bracket, the bracket includes a connection plate 401 and a leg 410, the leg 410 is hinged to the connection plate 401, a fixing plate 402 is provided in the middle of the bracket, and the controller 1 is connected to the fixing plate 402. In this embodiment, the leg 410 is hinged to the connection plate 401, and the leg 410 can be folded inward for easy storage.

[0033] Based on the above implementation, preferably, the leg 410 includes a jacket 411, a support rod 412 and a clamping portion 413, the jacket 411 is sleeved with the support rod 412, and the clamping portion 413 is used to limit the relative position of the jacket 411 and the support rod 412. In this embodiment, the leg 410 includes the jacket 411 and the support rod 412, realizes the retracting function, and can adjust the height according to actual conditions.

[0034] On the basis of the above-mentioned embodiment, preferably, the first rotating part 210 and the second rotating part 220 of the pan / tilt 2 are both provided with a photoelectric proximity switch 224 and a gear stopper 225, and a gear stopper 225 is respectively provided on the first gear 212 and the second gear 223 of the first rotating part 210 and the second rotating part 220, and the photoelectric proximity switch 224 and the gear stopper 225 are arranged correspondingly. The installation method of the photoelectric proximity switch 224 and the gear stopper 225 in the first rotating part 210 and the second rotating part 220 is the same. In the prior art, the pan / tilt limit mode is: using a micro switch for limit control, the micro switch is a contact mechanism with a small contact interval and a quick-action mechanism, which performs a switch action with a specified stroke and a specified force, is covered with a shell, and has a driving rod on the outside. The external driving rod applies force to the action reed, and when the action reed is displaced to the critical point, an instantaneous action is generated, so that the moving contact at the end of the action reed is quickly connected or disconnected with the fixed contact. The micro switch has a small load capacity, slow action speed, short contact life, unstable switch connection performance, and is easily affected by environmental interference. It also requires the installation of an additional drive rod. Because of these shortcomings of the micro switch, the gimbal often fails to control the limit, and the micro switch is opened and the drive rod is damaged, which in turn affects the normal operation of the gimbal.

[0035] The pan / tilt limit mode of the present application is limited by a photoelectric proximity switch. The photoelectric proximity switch is a kind of inductive switch made by the principle of photoelectric effect. When light shines on the photosensitive detector of the photoelectric proximity switch, the photosensitive element inside the detector converts the light into an electrical signal, which is then processed by the circuit to generate a control signal to drive the output switch to operate. It has the advantages of accurate and stable detection, fast response speed, and long life.

[0036] Directions:

[0037] 1. Fix the detector on the fully automatic pan-tilt platform with screws;

[0038] 2. Fix the fully automatic PTZ and controller on the bracket respectively;

[0039] 3. Connect the fully automatic PTZ, detector and controller with input and output cables;

[0040] 4. Connect the controller to the power supply (AC220V or DC12V);

[0041] 5. The controller starts and runs automatically;

[0042] 6. Set the scanning test points and alarm thresholds through the host computer software;

[0043] 7. Under the control of the controller, the PTZ automatically runs according to the preset points, and stops running to collect snow thickness and temperature data at each test point. The first collected data is used as initialization data, and subsequent data is used as a reference;

[0044] 8. After all the test points have been tested once, the PTZ returns to its original position, and then repeats the test according to the set inspection cycle. The detected data will be displayed on the controller's display screen in real time and will also be stored in the internal memory. The external communication line or communication module can also transmit the data to the computer.

[0045] 9. The controller compares the snow thickness data collected with the preset alarm threshold, and then drives the output relay to control the alarm or work with the snow removal equipment.

[0046] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0047] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. Photovoltaic power station scanning snow thickness measuring instrument, its characteristics are: The invention comprises a controller, a pan-tilt head and a detector, wherein the controller is electrically connected to the pan-tilt head and the detector; the pan-tilt head comprises a base, a first rotating part and a second rotating part, wherein the base is rotatably connected to the first rotating part, and the first rotating part is rotatably connected to the second rotating part; the detector is connected to the second rotating part, and the detector comprises a shell, wherein a front end cover and a rear end cover are respectively arranged at both ends of the shell, the front end cover is provided with a cover plate, a sensor hole is arranged on the cover plate, a laser detector is arranged in the shell corresponding to the sensor hole, a mounting plate is also arranged in the shell, the mounting plate is fixedly connected to the shell by bolts, the laser detector is clamped between the mounting plate and the heat insulation plate, the mounting plate and the heat insulation plate are connected by bolts, a pad is arranged between the tail of the laser detector and the mounting plate, a heating plate is arranged between the laser detector and the heat insulation plate, and a temperature control module is arranged below the heat insulation plate; an integrated circuit module is also arranged in the shell, the integrated circuit module is fixedly connected to the mounting plate, and is electrically connected to the laser detector.

2. The photovoltaic power station scanning snow thickness measuring instrument according to claim 1 is characterized in that: The integrated circuit module comprises a main control board, a power board and a communication board, and the main control board, the power board and the communication board are respectively fixed on the mounting plate by bolts.

3. The photovoltaic power station scanning snow thickness measuring instrument according to claim 1 is characterized in that: The front end cover is also provided with a power indicator light, a working condition indicator light and an alarm indicator light.

4. The photovoltaic power station scanning snow thickness measuring instrument according to claim 1 is characterized in that: A first fixing plate and a second fixing plate are provided inside the cover plate, the first fixing plate is connected to the cover plate, a mounting hole is provided on the first fixing plate corresponding to the sensor hole, the front end of the laser detector is embedded in the mounting hole, and the second fixing plate is connected to the first fixing plate.

5. The photovoltaic power station scanning snow thickness measuring instrument according to claim 1 is characterized in that: The rear end cover is provided with a first aviation socket and a second aviation socket.

6. The photovoltaic power station scanning snow thickness measuring instrument according to claim 1 is characterized in that: The pan / tilt base is connected to a bracket, the bracket includes a connecting plate and a supporting leg, the supporting leg is hinged to the connecting plate, a fixing plate is provided in the middle of the bracket, and the controller is connected to the fixing plate.

7. The photovoltaic power station scanning snow thickness measuring instrument according to claim 6 is characterized in that: The supporting leg comprises a sleeve, a supporting rod and a clamping portion, the sleeve is sleeved with the supporting rod, and the clamping portion limits the relative position of the sleeve and the supporting rod.

8. The photovoltaic power station scanning snow thickness measuring instrument according to claim 1 is characterized in that: The first rotating part and the second rotating part of the pan / tilt head are both provided with a photoelectric proximity switch and a gear limiter. A gear limiter is respectively provided on the first gear and the second gear of the first rotating part and the second rotating part. The photoelectric proximity switch and the gear limiter are arranged correspondingly.

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