Fly ash warehouse-in and warehouse-out weighing device with license plate recognition function and operation method

Abstract

The invention belongs to the technical field of weighing equipment, particularly relates to a fly ash warehouse-in and warehouse-out weighing device with a license plate recognition function and an operation method, and aims at solving the problem that an existing fly ash warehouse-in and warehouse-out weighing device lacks measures for cleaning a camera lens used for recognizing a license plate, the following scheme is provided: the fly ash warehouse-in and warehouse-out weighing device comprises a bearing platform; the wagon balance is arranged on the bearing platform; the bottom of the stand column is fixedly connected with the upper side of the bearing platform, the upper side of the stand column is fixedly connected with a functional box, the upper side of the functional box is fixedly connected with a ball seat, and a ball head is arranged on the ball seat. According to the fly ash warehouse-in and warehouse-out weighing device with the license plate recognition function and the operation method, the lens of the camera used for license plate recognition can be cleaned, so that the camera can keep good lens definition all the time, and the license plate recognition success rate of the device is effectively guaranteed; the situation that the fly ash ex-warehouse process is delayed due to wrong license plate recognition of the device is avoided, and the efficiency of transportation and sales management is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the weighing equipment technical field, especially to the fly ash in and out of the warehouse weighing device with license plate recognition function and operation method. BACKGROUND

[0002] The weighing of the warehouse is a key link in the warehousing logistics, production, trade and other industries, which refers to the weight measurement process of the goods when the goods are ready to leave the warehouse.

[0003] In the intelligent warehouse management, the license plate automatic identification of the vehicle when entering and leaving can be linked with the weighing system to realize the full-process automation.

[0004] The existing fly ash in and out of the warehouse weighing device in the process of use, because the camera used for identifying the license plate is close to the distance of the truck loaded with fly ash, the lens of the camera is attached by the dust or fly ash powder brought by the truck, which causes the lens to gradually blur, thereby affecting the license plate recognition function of the device and reducing the accuracy of the license plate recognition of the device. SUMMARY

[0005] The present application discloses a fly ash in and out of the warehouse weighing device with license plate recognition function and operation method, which aims to solve the technical problem of the lack of measures for cleaning the lens of the camera used for identifying the license plate in the existing fly ash in and out of the warehouse weighing device.

[0006] The fly ash in and out of the warehouse weighing device with license plate recognition function provided by the present application comprises: a bearing platform; a weighbridge, which is arranged on the bearing platform; a stand column, the bottom of which is fixedly connected with the upper side of the bearing platform, the upper side of the stand column is fixedly connected with a function box, the upper side of the function box is fixedly connected with a ball seat, a ball head is arranged on the ball seat, and the upper side of the ball head is fixedly connected with a camera; a barrier rod, which is located outside the function box, the outside of the function box is fixedly connected with a rotating motor, and the output end of the rotating motor is connected with the outside of the barrier rod through a shaft coupling; an extension type cleaning module, which is located outside the camera and is used to clean the lens of the camera.

[0007] In a preferred scheme, the stretching cleaning module comprises an annular seat, the inner wall of the annular seat is fixedly connected with the outside of the camera, the outside of the annular seat is provided with an annular groove, the inner wall of the annular groove is slidably connected with a movable table, the side of the annular seat away from the annular groove is provided with a circular groove, the inner wall of the circular groove is fixedly connected with an external gear ring, and the outside of the movable table is provided with an aperture, the aperture is fixedly connected with a motor one, the output end of the motor one is connected with a gear through a shaft coupling, and the gear is engaged with the external gear ring; the movable table is provided with a notch, the notch is movably connected with a rotating table, the side of the movable table is provided with a circular port, the circular port is fixedly connected with a motor two, the output end of the motor two is connected with one side of the rotating table through a shaft coupling, the outside of the rotating table is fixedly connected with a connecting block, the upper side of the connecting block is provided with a slot, the slot is fixedly connected with a motor three, the output end of the motor three is connected with a lead screw through a shaft coupling, the outside of the lead screw is provided with a guide rod, and the side opposite to the movable table of the guide rod is fixedly connected; the outside of the lead screw and the guide rod is provided with a same mounting plate, the side opposite to the connecting block of the mounting plate is slidably connected, the mounting plate is provided with a circular port, the circular port is movably connected with a disc, the disc is located on the side of the mounting plate close to the camera, the side of the mounting plate away from the disc is fixedly connected with a driving motor one, the output end of the driving motor one is connected with the outside of the disc through a shaft coupling, and the side of the disc close to the camera is provided with a cleaning brush; the disc is provided with three circumferentially equidistantly distributed fine holes, the fine holes are slidably connected with circular rods, the side opposite to the cleaning brush of the circular rods is fixedly connected, the outside of the circular rods is surrounded with springs, one end of the springs is fixedly connected with the outside of the cleaning brush, and the other end is fixedly connected with the outside of the disc; the side of the mounting plate close to the driving motor one is fixedly connected with a liquid storage tank, the liquid storage tank is provided with a jack, the jack is fixedly connected with a liquid delivery pipe, the end of the liquid delivery pipe away from the liquid storage tank is fixedly connected with a nozzle, the nozzle is located on the outside of the cleaning brush, the outside of the liquid delivery pipe is fixedly connected with a support, the side opposite to the mounting plate of the support is fixedly connected, the outside of the mounting plate is fixedly connected with a pump one, the output end of the pump one is connected with the liquid delivery pipe through a conduit, and the barrier lever is provided with a license plate washing module.

[0008] In a preferred scheme, the license plate washing module comprises a rectangular groove opened on the side of the barrier lever close to the bearing platform, the inner wall of the rectangular groove is fixedly connected with a fourth motor, the output end of the fourth motor is connected with a threaded rod through a shaft coupling, the outer portion of the threaded rod is provided with a moving seat, a cutout is opened on the moving seat, a collecting box is movably connected in the cutout, and three equidistantly distributed spray heads are arranged on the collecting box; the outer portion of the moving seat is provided with two symmetrical arc-shaped grooves, short shafts are slidably connected in the arc-shaped grooves, the opposite sides of the two short shafts are fixedly connected, the outer portion of the moving seat is fixedly connected with a second driving motor, the output end of the second driving motor is connected with a steering rod through a shaft coupling, and the inner wall of the steering rod is slidably connected with the outer portion of one of the short shafts; the upper side of the bearing platform is fixedly connected with a liquid storage cylinder, a fine groove is opened on the liquid storage cylinder, a hose is fixedly connected in the fine groove, the end of the hose away from the liquid storage cylinder is communicated with the collecting box, and the upper side of the liquid storage cylinder is fixedly connected with a second pump, and the output end of the second pump is connected with the hose through a circular pipe.

[0009] The fly ash in-out warehouse weighing method with license plate recognition function uses the fly ash in-out warehouse weighing device with license plate recognition function, and comprises the following steps. Step one, when the customer's vehicle transports goods, the card obtained is read on the card reader to read the information of the card, the license plate number registered or manually input is searched, the vehicle is moved to the weighbridge, the weight is clicked, the vehicle information can be seen, the password is input, the entry is confirmed, the customer goes to the dispatching room, the fly ash warehouse is distributed, and then the goods are pulled in the corresponding fly ash warehouse, the card is read when the factory leaves, the password is input, the barrier lever is rotated to be opened, and a small ticket is generated when the factory leaves. Step two, when the lens on the camera is attached with dust and soil at an angle, the lens is cleaned by using the stretching cleaning module. Step three, when the license plate is blocked by dust and the like and cannot be recognized in the process that the camera recognizes the license plate, the license plate is washed by using the license plate washing module.

[0010] As can be seen from the above, the fly ash in-out warehouse weighing device with license plate recognition function has the advantages that the lens of the camera used for license plate recognition can be cleaned, so that the camera can always maintain good lens clarity, the recognition success rate of the device for the license plate is effectively ensured, the situation that the fly ash out-of-warehouse process is delayed due to the license plate recognition error of the device is avoided, and the efficiency of the transportation and sales management is improved. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the overall structure schematic view of the fly ash in-out warehouse weighing device with license plate recognition function. Figure 2The function box and barrier rod structure diagram of the fly ash in and out of warehouse weighing device with license plate recognition function provided by the application is shown in the figure. Figure 3 The extension type cleaning module structure diagram of the fly ash in and out of warehouse weighing device with license plate recognition function provided by the application is shown in the figure. Figure 4 The movable table structure diagram of the fly ash in and out of warehouse weighing device with license plate recognition function provided by the application is shown in the figure. Figure 5 The disc structure diagram of the fly ash in and out of warehouse weighing device with license plate recognition function provided by the application is shown in the figure. Figure 6 The mounting plate structure diagram of the fly ash in and out of warehouse weighing device with license plate recognition function provided by the application is shown in the figure. Figure 7 The license plate flushing module structure diagram of the fly ash in and out of warehouse weighing device with license plate recognition function provided by the application is shown in the figure. Figure 8 The movable seat structure diagram of the fly ash in and out of warehouse weighing device with license plate recognition function provided by the application is shown in the figure.

[0012] In the figure: 1, bearing platform; 2, weighbridge; 3, stand; 4, function box; 5, camera; 6, rotating motor; 7, barrier rod; 8, extension type cleaning module; 801, annular seat; 802, annular groove; 803, movable table; 804, outer tooth ring; 805, motor one; 806, gear; 807, motor two; 808, rotating table; 809, connecting block; 810, motor three; 811, screw rod; 812, guide rod; 813, mounting plate; 814, driving motor one; 815, disc; 816, cleaning brush; 817, round rod; 818, spring; 819, liquid storage tank; 820, liquid delivery pipe; 821, support frame; 822, nozzle; 823, pump one; 9, license plate flushing module; 901, rectangular groove; 902, motor four; 903, threaded rod; 904, liquid storage cylinder; 905, pump two; 906, hose; 907, movable seat; 908, collection box; 909, spray head; 910, arc-shaped groove; 911, short shaft; 912, driving motor two; 913, steering rod. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application.

[0014] The fly ash in and out of warehouse weighing device with license plate recognition function disclosed by the application is mainly applied to the scene that the existing fly ash in and out of warehouse weighing device lacks measures for cleaning the camera lens for identifying license plates.

[0015] With reference to Figures 1-8 , the fly ash in and out of warehouse weighing device with license plate recognition function comprises: a bearing platform 1; a weighbridge 2, which is arranged on the bearing platform 1; a stand column 3, the bottom of the stand column 3 is connected to the upper side of the bearing platform 1 through bolts, the upper side of the stand column 3 is connected to a function box 4 through bolts, and the upper side of the function box 4 is connected to a ball seat through bolts, a ball head is arranged on the ball seat, and the upper side of the ball head is connected to a camera 5 through bolts; a barrier rod 7, which is located outside the function box 4, and a rotating motor 6 is connected to the outside of the function box 4 through bolts, the output end of the rotating motor 6 is connected to the outside of the barrier rod 7 through a shaft coupling; an extending cleaning module 8, which is located outside the camera 5 and is used for cleaning the lens of the camera 5.

[0016] Specifically, the device can clean the lens of the camera 5 used for license plate recognition by using the extending cleaning module 8, so that the camera 5 can always maintain good lens clarity, effectively ensures the success rate of license plate recognition of the device, avoids the situation that the fly ash out process is delayed due to license plate recognition error of the device, and improves the efficiency of sales management.

[0017] With reference to Figure 3 , Figure 4 , Figure 5 and Figure 6In a preferred implementation, the stretching cleaning module 8 comprises a ring seat 801, the inner wall of which is connected to the outside of the camera 5 by bolts, the outside of the ring seat 801 is provided with a ring groove 802, the inner wall of the ring groove 802 is slidingly connected with a movable table 803, the side of the ring seat 801 away from the ring groove 802 is provided with a circular groove, the inner wall of the circular groove is connected with an external gear ring 804 by bolts, and the outside of the movable table 803 is provided with a hole, the hole is connected with a motor one 805 by bolts, the output end of the motor one 805 is connected with a gear 806 through a shaft coupling, and the gear 806 is engaged with the external gear ring 804; the movable table 803 is provided with a notch, the notch is rotatably connected with a rotating table 808 through a bearing, the side of the movable table 803 is provided with a circular hole, the circular hole is connected with a motor two 807 by bolts, the output end of the motor two 807 is connected with the side of the rotating table 808 through a shaft coupling, the outside of the rotating table 808 is connected with a connecting block 809 by bolts, the upper side of the connecting block 809 is provided with a slot, the slot is connected with a motor three 810 by bolts, the output end of the motor three 810 is connected with a lead screw 811 through a shaft coupling, the outside of the lead screw 811 is provided with a guide rod 812, the side opposite to the movable table 803 of the guide rod 812 is connected by bolts; the outside of the lead screw 811 and the guide rod 812 is provided with a same mounting plate 813, the side opposite to the connecting block 809 of the mounting plate 813 is slidingly connected, the mounting plate 813 is provided with a circular hole, the circular hole is rotatably connected with a disc 815 through a bearing, the disc 815 is located at the side of the mounting plate 813 close to the camera 5, the side of the mounting plate 813 away from the disc 815 is connected with a driving motor one 814 by bolts, the output end of the driving motor one 814 is connected with the outside of the disc 815 through a shaft coupling, and the side of the disc 815 close to the camera 5 is provided with a cleaning brush 816; the disc 815 is provided with three circumferentially equidistantly distributed fine holes, the fine holes are slidingly connected with a circular rod 817, the side opposite to the cleaning brush 816 of the circular rod 817 is connected by bolts, and the outside of the circular rod 817 is surrounded by a spring 818, one end of the spring 818 is connected with the outside of the cleaning brush 816 by bolts, and the other end is connected with the outside of the disc 815 by bolts; the side of the mounting plate 813 close to the driving motor one 814 is connected with a liquid storage tank 819 by bolts, the liquid storage tank 819 is provided with a jack, the jack is connected with a liquid delivery pipe 820 by bolts, the end of the liquid delivery pipe 820 away from the liquid storage tank 819 is connected with a nozzle 822 by bolts, the nozzle 822 is located at the outside of the cleaning brush 816, the outside of the liquid delivery pipe 820 is connected with a support 821 by bolts, the side opposite to the mounting plate 813 of the support 821 is connected by bolts, and the outside of the mounting plate 813 is connected with a pump one 823 by bolts, the output end of the pump one 823 is connected with the liquid delivery pipe 820 through a conduit, and the barrier lever 7 is provided with a license plate washing module 9.

[0018] Specifically, when the lens on the camera 5 is interfered by dirt, the motor two 807 is started, the motor two 807 drives the rotating table 808 to rotate from the state of being parallel to the lens of the camera 5 to the state of being perpendicular to the lens, so that the mounting plate 813 on the connecting block 809 connected with the rotating table 808 can be parallel to the lens, at this time, the cleaning brush 816 on the mounting plate 813 is tightly attached to the surface of the lens under the elastic pressure of the spring 818, the driving motor one 814 is started, the driving motor one 814 drives the cleaning brush 816 to rotate, the motor one 805 is started, the motor one 805 drives the gear 806 to rotate, so that the motor one 805 engaged with the outer gear ring 804 drives the movable table 803 to move in a circular motion on the annular seat 801, while the annular seat 801 moves, the motor three 810 is started, the motor three 810 drives the lead screw 811 to rotate, so that the mounting plate 813 moves along the lead screw 811 to the outside of the camera 5, so that the cleaning brush 816 cleans the lens with a constantly expanding circle, at the same time, the pump one 823 is started, the pump one 823 delivers the cleaning liquid in the liquid storage tank 819 to the nozzle 822 through the liquid delivery pipe 820 to spray out, after cleaning is completed, the motor two 807 is started again, so that the rotating table 808 rotates back to the original position.

[0019] In a specific application scenario, the stretching cleaning module 8 is mainly suitable for the stretching cleaning link in the stretching cleaning process, that is, the stretching cleaning module 8 can improve the cleaning effect of the device on the lens by using the cleaning brush 816 and the cleaning liquid in the liquid storage tank 819, the movable mounting plate 813 and the connecting block 809 can form a cleaning track from the center to the outside of the cleaning brush 816, which improves the cleaning efficiency of the device, and the rotating rotating table 808 can be arranged only when the lens needs to be cleaned, which reduces the shielding of the device to the lens.

[0020] Referring to Figure 7 and Figure 8In a preferred embodiment, the license plate washing module 9 comprises a rectangular groove 901 opened on the side of the barrier lever 7 close to the bearing platform 1, the inner wall of the rectangular groove 901 is connected with a motor four 902 through bolts, the output end of the motor four 902 is connected with a threaded rod 903 through a shaft coupling, the outside of the threaded rod 903 is provided with a moving seat 907, a cutout is opened on the moving seat 907, a collecting box 908 is rotatably connected in the cutout through a bearing, and three nozzles 909 are equidistantly arranged on the collecting box 908; two symmetrical arc-shaped grooves 910 are opened on the outside of the moving seat 907, a short shaft 911 is slidably connected in each arc-shaped groove 910, the side of the short shaft 911 opposite to the collecting box 908 is connected through a bolt, a driving motor two 912 is connected on the outside of the moving seat 907 through a bolt, the output end of the driving motor two 912 is connected with a steering rod 913 through a shaft coupling, and the inner wall of the steering rod 913 is slidably connected with the outside of one of the short shafts 911; a liquid storage cylinder 904 is connected on the upper side of the bearing platform 1 through a bolt, a fine groove is opened on the liquid storage cylinder 904, a hose 906 is connected in the fine groove through a bolt, one end of the hose 906 away from the liquid storage cylinder 904 is communicated with the collecting box 908, and the upper side of the liquid storage cylinder 904 is connected with a pump two 905 through a bolt, and the output end of the pump two 905 is connected with the hose 906 through a circular pipe.

[0021] Specifically, when the camera 5 identifies the license plate, if the license plate is blocked by dirt and cannot be identified, the motor four 902 is started, the motor four 902 drives the threaded rod 903 to rotate, the moving seat 907 moves on the rectangular groove 901, the moving seat 907 can be moved to the position of the license plate, the pump two 905 is started, the pump two 905 sends the clean water in the liquid storage cylinder 904 to the collecting box 908 through the hose 906, the clean water is sprayed out at high speed through the nozzles 909, so as to clean the license plate, when there is a height difference between the position of the license plate and the collecting box 908, the driving motor two 912 is started, the driving motor two 912 drives the steering rod 913 to rotate, so as to drive the short shaft 911 to rotate in the arc-shaped groove 910, the short shaft 911 drives the collecting box 908 to adjust the angle, so that the clean water sprayed out of the nozzles 909 can clean the license plate.

[0022] In a specific application scenario, the license plate washing module 9 is mainly suitable for the license plate washing link in the license plate washing process, that is, the threaded rod 903 and the moving seat 907 can make the device accurately position the license plate, improve the cleaning effect of the dirty license plate, and the collecting box 908 and the short shaft 911 can quickly adjust the angle of rotation of the collecting box 908, so that the device can clean the license plate on different vehicle models, and improve the universality of the device.

[0023] The fly ash in and out of the warehouse weighing method with license plate recognition function uses the fly ash in and out of the warehouse weighing device with license plate recognition function as described above, and comprises the following steps: Step one, the customer vehicle transports goods, when entering the field, the card needs to be read first, the information of the card is read, the license plate number is selected or manually inputted, the vehicle is moved to the weighbridge 2, the weighing is clicked, the vehicle information can be seen, the password is inputted, the entry is confirmed, the customer goes to the dispatching room, the ash storage is distributed, then the corresponding ash storage is pulled to transport goods, the card needs to be read when leaving the factory, the password is inputted, the barrier gate rod 7 will be rotated to open, and the small ticket is generated when leaving the factory; Step two, when the lens on the camera 5 is attached with angular dust and soil, the lens is cleaned using the stretching cleaning module 8 (when the lens on the camera 5 is disturbed by dirt, the motor two 807 is started, the motor two 807 drives the rotating table 808 to rotate from the state of being parallel to the lens to the state of being perpendicular to the lens, so that the mounting plate 813 on the connecting block 809 connected with the rotating table 808 can be parallel to the lens, at this time, the cleaning brush 816 on the mounting plate 813 is tightly attached to the lens surface under the elastic pressure of the spring 818, the driving motor one 814 is started, the driving motor one 814 drives the cleaning brush 816 to rotate, the motor one 805 is started, the motor one 805 drives the gear 806 to rotate, so that the motor one 805 engaged with the outer gear ring 804 drives the movable table 803 to move in a circular motion on the annular seat 801, while the annular seat 801 moves, the motor three 810 is started, the motor three 810 drives the lead screw 811 to rotate, so that the mounting plate 813 moves along the lead screw 811 to the outside of the camera 5, so that the cleaning brush 816 cleans the lens with a constantly expanding circle, at the same time, the pump one 823 is started, the pump one 823 sends the cleaning liquid in the liquid storage tank 819 to the nozzle 822 through the liquid delivery pipe 820, and sprays out, after cleaning, the motor two 807 is started again, so that the rotating table 808 rotates back to the original position); Step 3: During the license plate recognition process by camera 5, if the license plate is obscured by dust or other dirt and cannot be recognized, use license plate washing module 9 to wash the license plate. (If the license plate is obscured by dirt and cannot be recognized by camera 5, start motor 4 902. Motor 4 902 drives the threaded rod 903 to rotate, causing the moving seat 907 to move on the rectangular groove 901, allowing the moving seat 907 to move to the position of the license plate. Start pump 2 905, pump 2 905 to store...) Clean water in liquid cylinder 904 is delivered to collection box 908 through hose 906. The clean water is sprayed out at high speed through nozzle 909 to clean the license plate. When there is a height difference between the license plate and collection box 908, drive motor 2 912 is started. Drive motor 2 912 drives steering rod 913 to rotate, thereby pushing short shaft 911 to rotate in arc groove 910. Short shaft 911 drives collection box 908 to adjust the angle, so that the clean water sprayed from nozzle 909 can clean the license plate.

[0024] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A fly ash weighing device for entering and leaving a warehouse with license plate recognition function, characterized in that, include: Platform (1); Weighbridge (2), which is mounted on a platform (1); The bottom of the column (3) is fixedly connected to the upper side of the support platform (1). A function box (4) is fixedly connected to the upper side of the column (3), and a ball seat is fixedly connected to the upper side of the function box (4). A ball head is provided on the ball seat, and a camera (5) is fixedly connected to the upper side of the ball head. The barrier gate arm (7) is located outside the function box (4). A rotating motor (6) is fixedly connected to the outside of the function box (4). The output end of the rotating motor (6) is connected to the outside of the barrier gate arm (7) through a coupling. An extendable cleaning module (8) is located outside the camera (5) for cleaning the lens of the camera (5).

2. The fly ash weighing device with license plate recognition function for entering and leaving the warehouse according to claim 1, characterized in that, The extended cleaning module (8) includes an annular seat (801), the inner wall of the annular seat (801) is fixedly connected to the outside of the camera (5), an annular groove (802) is opened on the outside of the annular seat (801), a movable platform (803) is slidably connected to the inner wall of the annular groove (802), a circular groove is opened on the side of the annular seat (801) away from the annular groove (802), an external gear ring (804) is fixedly connected to the inner wall of the circular groove, and an opening is opened on the outside of the movable platform (803), a motor (805) is fixedly connected in the opening, and a gear (806) is connected to the output end of the motor (805) through a coupling, and the gear (806) meshes with the external gear ring (804).

3. The fly ash weighing device with license plate recognition function for entering and leaving the warehouse according to claim 2, characterized in that, The movable platform (803) has a notch, and a rotating platform (808) is movably connected in the notch. A circular opening is opened on one side of the movable platform (803), and a second motor (807) is fixedly connected in the circular opening. The output end of the second motor (807) is connected to one side of the rotating platform (808) through a coupling. A connecting block (809) is fixedly connected to the outside of the rotating platform (808). A slot is opened on the upper side of the connecting block (809), and a third motor (810) is fixedly connected in the slot. The output end of the third motor (810) is connected to a lead screw (811) through a coupling. A guide rod (812) is provided on the outside of the lead screw (811), and the guide rod (812) is fixedly connected to the side of the movable platform (803) opposite to it.

4. The fly ash weighing device with license plate recognition function for entering and leaving the warehouse according to claim 3, characterized in that, The lead screw (811) and guide rod (812) are provided with the same mounting plate (813). The mounting plate (813) is slidably connected to the side opposite to the connecting block (809). The mounting plate (813) has a round opening, and a disc (815) is movably connected inside the round opening. The disc (815) is located on the side of the mounting plate (813) closer to the camera (5). A drive motor (814) is fixedly connected on the side of the mounting plate (813) away from the disc (815). The output end of the drive motor (814) is connected to the outside of the disc (815) through a coupling. A cleaning brush (816) is provided on the side of the disc (815) closer to the camera (5).

5. The fly ash weighing device with license plate recognition function for entering and leaving the warehouse according to claim 4, characterized in that, The disc (815) has three circumferentially distributed fine holes, and a round rod (817) is slidably connected in each of the fine holes. The round rod (817) is fixedly connected to the side opposite to the cleaning brush (816), and a spring (818) is wrapped around the outside of the round rod (817). One end of the spring (818) is fixedly connected to the outside of the cleaning brush (816), and the other end is fixedly connected to the outside of the disc (815).

6. The fly ash weighing device with license plate recognition function for entering and leaving the warehouse according to claim 5, characterized in that, The mounting plate (813) is fixedly connected to a liquid storage tank (819) on the side near the drive motor (814). The liquid storage tank (819) has an insertion hole, and an infusion tube (820) is fixedly connected in the insertion hole. The end of the infusion tube (820) away from the liquid storage tank (819) is fixedly connected to a nozzle (822). The nozzle (822) is located outside the cleaning brush (816). A support frame (821) is fixedly connected to the outside of the infusion tube (820). The support frame (821) is fixedly connected to the side opposite to the mounting plate (813). A pump (823) is fixedly connected to the outside of the mounting plate (813). The output end of the pump (823) is connected to the infusion tube (820) through a conduit. A license plate washing module (9) is provided on the barrier arm (7).

7. The fly ash weighing device with license plate recognition function for entering and leaving the warehouse according to claim 6, characterized in that, The license plate washing module (9) includes a rectangular groove (901), which is located on the side of the barrier arm (7) near the support platform (1). A motor (902) is fixedly connected to the inner wall of the rectangular groove (901). The output end of the motor (902) is connected to a threaded rod (903) via a coupling. A movable seat (907) is provided on the outside of the threaded rod (903). A cut is provided on the movable seat (907), and a collection box (908) is movably connected inside the cut. Three nozzles (909) are provided on the collection box (908).

8. The fly ash weighing device with license plate recognition function for entering and leaving the warehouse according to claim 7, characterized in that, The movable seat (907) has two symmetrical arc-shaped grooves (910) on its exterior. Short shafts (911) are slidably connected in each arc-shaped groove (910). The two short shafts (911) are fixedly connected to the side opposite to the collection box (908). A second drive motor (912) is fixedly connected to the exterior of the movable seat (907). The output end of the second drive motor (912) is connected to a steering rod (913) through a coupling. The inner wall of the steering rod (913) is slidably connected to the exterior of one of the short shafts (911).

9. The fly ash weighing device with license plate recognition function for entering and leaving the warehouse according to claim 8, characterized in that, A liquid storage cylinder (904) is fixedly connected to the upper side of the support (1). A fine groove is opened on the liquid storage cylinder (904). A flexible hose (906) is fixedly connected in the fine groove. The end of the flexible hose (906) away from the liquid storage cylinder (904) is connected to the collection box (908). A second pump (905) is fixedly connected to the upper side of the liquid storage cylinder (904). The output end of the second pump (905) is connected to the flexible hose (906) through a round pipe.

10. A method for weighing fly ash entering and leaving a warehouse with license plate recognition function, using the fly ash entering and leaving a warehouse weighing device with license plate recognition function as described in claim 9, characterized in that... Includes the following steps: Step 1: When a customer's vehicle enters to transport goods, the customer must first place the card they received on the card reader to read the card information, select the registered license plate number or manually enter the search, move the vehicle to the weighbridge (2), click to weigh, and see the vehicle information. Enter the password to confirm entry. The customer goes to the dispatch room, is assigned a gray warehouse, and then goes to the corresponding gray warehouse to pick up the goods. When leaving the factory, the customer needs to read the card and enter the password. The gate (7) will rotate and open. A receipt will be generated when leaving the factory. Step 2: When there is dust and dirt on the lens of the camera (5), use the extendable cleaning module (8) to clean the lens; Step 3: During the process of the camera (5) recognizing the license plate, if the license plate is obscured by dust or other dirt and cannot be recognized, use the license plate washing module (9) to wash the license plate.

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