AI-based intelligent blackboard erasing recoverable device and method

Abstract

The invention provides an AI-based intelligent blackboard erasing recoverable device and method. According to the invention, switching between overall wiping and local selection wiping can be realized, and the wiped content can be recovered after wiping. The blackboard eraser comprises an integral erasing blackboard eraser and a local erasing blackboard eraser, the wireless remote controller is connected to the industrial personal computer through wireless signals, and a laser lamp is installed on the wireless remote controller; and the camera is arranged in front of the blackboard, is used for shooting the blackboard and is connected to the industrial personal computer. And the projector is connected to the industrial personal computer and is used for projecting a picture onto the blackboard. By means of the erasing recovery function, before corresponding content of the blackboard is erased, the erased content is recorded in advance and stored in the industrial personal computer, then corresponding erasing is conducted, and if the erased content is expected to be recovered after erasing, it only needs to project the stored content to the blackboard through the projector, and therefore the blackboard can be recovered. And great convenience is brought to a user.

Description

Technical Field

[0001] The present invention relates to the technical field of blackboard erasing, and in particular to a device and method for recoverable blackboard erasing based on AI intelligence. Background Art

[0002] Traditionally, blackboards are wiped manually using a blackboard eraser. This requires constant movement of the arm during the blackboard erasing process, which is laborious.

[0003] Chinese invention patent CN108583090A discloses a fully automatic blackboard eraser based on image recognition, which takes a photo of the entire blackboard through a camera, transmits the image back to a microcomputer, and the microcomputer performs binarization processing on the image to identify the area with chalk marks. Then, for the area that needs to be wiped with chalk marks identified, the blackboard eraser is controlled to directly reach the area that needs to be wiped, and then the blackboard eraser moves up and down in a small amplitude in the area to wipe, and then wipes the next area after the area is wiped, until the whole blackboard is wiped, it returns to the starting point to prepare for the next wipe. Although it can wipe the blackboard, it identifies the entire area with chalk, and then wipes the area with chalk on the entire blackboard. But sometimes teachers only need to wipe off a part that is wrongly written or a part that needs to be vacated, and the other parts are retained. In this case, its technical solution is difficult to implement.

[0004] In addition, whether it is manual wiping or wiping according to the above-mentioned patent document, the blackboard will be restored to a clean state after wiping. However, if it is accidentally wiped or you want to restore it after wiping, the technical solutions in the prior art cannot solve the technical problem. In view of this, the present application not only proposes a mechanism for wiping the blackboard in a selectable area, but also proposes a method for restoration after wiping. Summary of the invention

[0005] In order to solve the technical problems of the above background technology, the present application proposes a device and method for restoring erased blackboard based on AI, which can switch between overall erasing and partial selective erasing, and can restore the erased content after erasing.

[0006] The technical solution of the present invention is:

[0007] A blackboard erasing device, characterized in that it comprises:

[0008] A blackboard erasing mechanism, the blackboard erasing mechanism comprising a supporting module movable along the length or width direction of the blackboard, an overall erasing blackboard eraser and a partial erasing blackboard eraser are respectively arranged on both sides of the moving direction of the supporting module, the overall erasing blackboard eraser is connected to the supporting module via a first lifting mechanism, the partial erasing blackboard eraser is connected to a moving block via a second lifting mechanism, the moving block is driven to move on the supporting module via a moving power mechanism, and the supporting module is driven to move along the length or width direction of the blackboard via a driving mechanism;

[0009] An industrial computer, the driving mechanism, the first lifting mechanism and the second lifting mechanism are all connected to the industrial computer;

[0010] A wireless remote control, which is connected to an industrial computer via a wireless signal and is equipped with a laser light;

[0011] A camera, which is placed in front of the blackboard and is used to photograph the blackboard. The camera is connected to an industrial computer;

[0012] A projector is connected to the industrial computer and is used to project images onto the blackboard.

[0013] Furthermore, the driving mechanism includes:

[0014] There are two guide rails, which are arranged on both sides of the length direction of the support module, and the support module slides along the length direction of the guide rails;

[0015] A first driving screw, at least one side of one of the guide rails is rotatably mounted with the first driving screw, and the first driving screw is threadedly engaged with the support module;

[0016] The first driving motor is used to drive the first driving screw to rotate.

[0017] Furthermore, the driving mechanism includes:

[0018] There are two guide rails, which are arranged on both sides of the length direction of the support module;

[0019] A first synchronous belt group, at least one guide rail is provided with a first synchronous belt group, the first synchronous belt group is composed of first synchronous wheels rotatably connected to both ends of the guide rail in the length direction and a first synchronous belt between the two first synchronous wheels, the support module is fixedly connected to the first synchronous belt, and the support module is moved along the guide rail by the first synchronous belt;

[0020] The first driving motor is used to drive the first synchronous wheel at one end of the guide rail to rotate.

[0021] Furthermore, the support module includes:

[0022] Slide blocks, there are two slide blocks, each of which is slidably connected to the guide rail;

[0023] A first support rod, the first support rod is connected between the two sliders, and the first support rod is used to support the overall wiping blackboard eraser;

[0024] The second support rod is connected between the two sliders and is placed on one side of the first support rod in the width direction. The second support rod is used to support the blackboard eraser for partial wiping.

[0025] Furthermore, the mobile power mechanism includes:

[0026] A second synchronous belt set, the second synchronous belt set is composed of a second synchronous wheel rotatably connected to both ends of the second support rod in the length direction and a second synchronous belt between the two second synchronous wheels, the moving block is slidably fitted on the second support rod along the length direction of the second support rod; the moving block is driven to move by the second synchronous belt;

[0027] The second driving motor is used to drive the second synchronous wheel at one end of the second supporting rod to rotate.

[0028] Furthermore, a plurality of first guide rods are fixed to the upper end of the whole-wiping blackboard eraser along its length direction, and the first guide rods are slidably connected to the supporting module; a plurality of second guide rods are fixed to the upper end of the partial-wiping blackboard eraser, and the second guide rods are slidably connected to the moving block.

[0029] Furthermore, the axial extension direction of the support rod is perpendicular to its moving direction.

[0030] Furthermore, the wireless remote control has a voice remote control function, and the wireless remote control has a display screen, an overall wipe button, a laser beam button, a voice button, a partial wipe button and a picture query button;

[0031] Wiping the entire blackboard: When the entire blackboard needs to be wiped, click the overall wipe button on the wireless remote control. At this time, the partial wipe blackboard eraser will be lifted up by the second lifting mechanism, and the overall wipe blackboard eraser will be lowered by the first lifting mechanism. The support module is driven to move by the driving mechanism, thereby driving the overall wipe blackboard eraser to wipe the entire blackboard;

[0032] Wiping of designated areas: When it is necessary to wipe part of the blackboard, click the local wipe button on the wireless remote control. At this time, the overall wiping blackboard eraser will be lifted up under the drive of the first lifting mechanism. Then press and hold the laser beam button on the wireless remote control and manually circle the area to be wiped. At this time, the camera records the area drawn by the laser beam on the blackboard and transmits it to the industrial computer. After setting the area to be wiped, release the laser beam button, and the support module is driven to move by the driving mechanism to move the local wiping blackboard eraser to the area to be wiped. The local wiping blackboard eraser will be driven by the second lifting mechanism to descend. At this time, the first driving motor drives the support module to move as a whole, and the moving block is driven by the moving power mechanism to move on the support module, thereby driving the local wiping blackboard eraser to wipe the blackboard locally.

[0033] The display screen on the wireless remote control can display the currently executed instructions in real time.

[0034] A recoverable method for erasing a blackboard based on AI intelligence using a blackboard erasing device, characterized in that it includes:

[0035] A projector, which is connected to the industrial computer and is used to project images onto the blackboard;

[0036] Before each wiping (before wiping, it refers to the time period after issuing the wiping command, such as clicking the wiping button, and before the blackboard eraser is executed), the camera will first take a picture of the area that needs to be wiped and store it. When the display needs to be restored, the picture query button on the wireless remote control is used to query the picture, and then the projector will project the picture onto the blackboard for display in real time.

[0037] A recoverable method for erasing a blackboard based on AI intelligence using a blackboard erasing device, characterized in that it includes:

[0038] A projector, which is connected to the industrial computer and is used to project images onto the blackboard;

[0039] The method of erasing the blackboard is as follows:

[0040] Step 1: Select the wiping area via wireless remote control;

[0041] Step 2: After selecting the wiping area, the camera takes a picture of the wiping area and saves the picture in the local industrial computer;

[0042] Step 3: The industrial computer controls the blackboard eraser to wipe the area that needs to be wiped;

[0043] How to restore after wiping:

[0044] Step 1: Issue a command through the picture query button on the wireless remote control, display the picture playback on the display screen of the wireless remote control, and select the picture to be restored;

[0045] Step 2: After selecting the picture to be restored through the wireless remote control, send a command to the industrial computer, control the projector through the industrial computer, and project the picture to be restored on the blackboard.

[0046] The supporting module wipes the blackboard with the local wiping blackboard eraser and the overall wiping blackboard eraser.

[0047] The beneficial effects of the present invention are:

[0048] 1. The blackboard can be wiped as a whole or partially by choosing between overall wiping and partial wiping. Overall wiping uses an overall wiping blackboard eraser, which spans the width or length of the blackboard. It only needs to move along a straight line to wipe the blackboard as a whole, and the wiping efficiency is high. When partial wiping is required, a partial blackboard eraser is used to wipe the designated area. It has a clear target and strong directionality, and can quickly wipe the designated area.

[0049] 2. The overall wiping and partial wiping methods are combined to select different wiping methods according to the situation, and the wiping process is fast and efficient; and the overall wiping and partial wiping structures share a support module to carry them for wiping, saving costs; and the overall wiping and partial wiping are controlled by wireless remote control, and the ineffective remote control is small in size, and the user can control the overall wiping or partial wiping of the blackboard at any position in the classroom.

[0050] 3. During partial wiping, the laser beam is used to circle the area that needs partial wiping in the wireless remote control, so that the user can circle the area that needs to be wiped remotely at any position.

[0051] 4. The wipe and restore function in the present invention allows the wiped content to be pre-recorded and stored in the industrial computer before the corresponding content on the blackboard is wiped, and then the corresponding wipe is performed. If you want to restore the wiped content after wiping, you only need to hold the wireless remote control to achieve it, which brings great convenience to the user. The present invention is mainly aimed at occasions such as when all the content cannot be written on a blackboard during the teaching process and needs to be temporarily erased, but it will be needed again later, or when the content is deleted by mistake during teaching or you want to partially restore the previously erased content. The invention combines a camera, a projector, a computer, a control processing system, an AI voice radio remote control system, and a mechanical motion execution system to realize the intelligent erasing and display restoration functions of the blackboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0053] Figure 1 The main structure diagram of the blackboard wiping mechanism of the present invention is shown in FIG. Figure 1 (Embodiment using a first drive screw);

[0054] Figure 2 The main structure diagram of the blackboard wiping mechanism of the present invention is shown in FIG. Figure 2 (Embodiment using the first synchronous belt set);

[0055] Figure 3 A three-dimensional view of the blackboard erasing mechanism of the present invention from a first perspective;

[0056] Figure 4 This is a stereoscopic diagram of the blackboard erasing mechanism of the present invention from a second viewing angle;

[0057] Figure 5 It is a three-dimensional connection structure between the supporting module and the blackboard eraser. Figure 1 ;

[0058] Figure 6 It is a three-dimensional connection structure between the supporting module and the blackboard eraser. Figure 2 ;

[0059] Figure 7 It is the overall principle diagram of the present invention;

[0060] Figure 8 is a schematic diagram of the wireless remote control of the present invention;

[0061] Fig. 9 Technology roadmap for erase-recoverable systems.

[0062] Fig.10 Technology roadmap for the selection of target areas for wiping using laser beams;

[0063] Fig.11 This is a schematic diagram of partitioning the blackboard in an industrial computer.

[0064] The accompanying drawings in the figure are marked as follows:

[0065] Blackboard erasing mechanism 1,

[0066] Support module 11, slider 111, first support rod 112, second support rod 113,

[0067] Wipe the blackboard eraser 12 as a whole, the first guide rod 121,

[0068] Partial wiping blackboard eraser 13, second guide rod 131,

[0069] The first lifting mechanism 14,

[0070] The second lifting mechanism 15,

[0071] Move block 16,

[0072] Mobile power mechanism 17, second synchronous wheel 171, second synchronous belt 172, second drive motor 173,

[0073] Driving mechanism 18, guide rail 181, first driving screw 182, first driving motor 183, first synchronous wheel 184, first synchronous belt 185;

[0074] Industrial computer 2;

[0075] Wireless remote control 3, display screen 31, overall wiping button 32, laser beam button 33, voice button 34, partial wiping button 35 and picture query button 36;

[0076] Camera 4;

[0077] Projector 5;

[0078] Blackboard 6. DETAILED DESCRIPTION

[0079] The following will be combined with the attached examples of the present application Figure 1-9 , the technical solutions in the embodiments of the present application are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0080] The blackboard erasing device of the present invention comprises a blackboard erasing mechanism 1, an industrial computer 2, a wireless remote control 3, a camera 4 and a projector 5.

[0081] The blackboard wiping part is installed on the blackboard. The blackboard is a blackboard in a broad sense, and can also be a whiteboard. Such boards that need to be written with colored pens can be collectively referred to as writing boards. A support module 11 that can move along the length direction or width direction of the blackboard is provided. The principle of movement in the length direction or width direction is the same. In this embodiment, the horizontal direction of the blackboard is described as the long side and the vertical direction is the short side, and the support module 11 is provided to move along the length direction of the blackboard. At this time, the support module 11 is vertically arranged. Horizontal guide rails 181 are respectively arranged on the upper and lower sides of the blackboard.

[0082] As an embodiment, the support module 11 includes two sliders 111, a first support rod 112 and a second support rod 113. The two sliders 111 are respectively slidably connected to the guide rails 181, and the first support rod 112 and the second support rod 113 are respectively fixed between the two sliders 111. The first support rod 112 is connected to the whole wiping blackboard eraser 12 through the first lifting mechanism 14, and the second support rod 113 is slidably connected along its length direction. The moving block 16 is connected to the partial wiping blackboard eraser 13 through the second lifting mechanism 15. The first lifting mechanism 14 and the second lifting mechanism 15 can be a cylinder, a cylinder or an electric telescopic rod. A plurality of first guide rods 121 are fixed above the whole wiping blackboard eraser 12, and a plurality of first guide holes are arranged at the corresponding positions of the first support rod 112, and the first guide rod 121 is slidably connected in the first guide hole. A plurality of second guide rods 131 are fixed on the upper end of the partial wiping blackboard eraser 13, and a plurality of second guide holes are arranged at the corresponding positions of the moving block 16, and the second guide rod 131 is slidably connected in the second guide hole.

[0083] As an embodiment of the driving mechanism 18, the driving mechanism 18 includes two guide rails 181, two first driving screws 182 and a first driving motor 183. The two guide rails 181 are respectively arranged on the upper and lower sides of the blackboard, and the support module 11 is arranged between the two guide rails 181. The two first driving screws 182 are respectively rotatably installed on one side of the two guide rails 181, and each first driving screw 182 is threadedly connected and passes through the corresponding slider 111. In order to drive the first driving screws 182 to rotate, a first driving motor 183 can be installed at one end of one of the first driving screws 182, and then a transmission mechanism is connected between the two driving screws, for example, it can be a belt and pulley transmission, or the first driving motor 183 can be connected to the two first driving screws 182 respectively. The two first driving screws 182 are driven simultaneously to ensure the stability of the movement of the support module 11 and prevent jamming.

[0084] As another embodiment of the driving mechanism 18, the driving mechanism 18 includes two guide rails 181, two groups of first synchronous belt groups and a first driving motor 183. The two guide rails 181 are respectively arranged on the upper and lower sides of the blackboard, the support module 11 is arranged between the two guide rails 181, and the two groups of first synchronous belt groups are respectively arranged on the two guide rails 181. Specifically, the first synchronous belt group is composed of a first synchronous wheel 184 rotatably connected to both ends of the guide rail 181 in the length direction and a first synchronous belt 185 between the two first synchronous wheels 184. The support module 11 and the first synchronous belt 185 are fixedly connected, and the first synchronous belt 185 carries the slider 111 of the support module 11 to move along the guide rail 181; a first synchronous wheel 184 in one group of the first synchronous belt groups can be driven by the first driving motor 183, and then the power is transmitted between the first synchronous wheel 184 of the other group through the belt and the pulley. Alternatively, the two first synchronous belt groups can be driven to rotate by a first driving motor 183 respectively. The two first synchronous belt groups are driven at the same time to ensure the stability of the movement of the support module 11 and prevent jamming. The sliders 111 of the supporting module 11 are respectively connected to the first synchronous belts corresponding thereto and are driven to move by the first synchronous belts.

[0085] As an embodiment, the mobile power mechanism 17 includes:

[0086] The second synchronous belt group is composed of a second synchronous wheel 171 rotatably connected to both ends of the second support rod 113 in the length direction and a second synchronous belt 172 between the two second synchronous wheels 171, and the moving block 16 is slidably fitted on the second support rod 113 along the length direction of the second support rod 113;

[0087] A second driving motor is used to drive the second synchronous wheel 171 at one end of the second support rod 113 to rotate;

[0088] The moving block 16 is fixed on the second synchronous belt 172 and is moved by the second synchronous belt 172 .

[0089] When the blackboard erasing device of the present invention is performing wiping work, when overall wiping is required, the overall wiping button 32 on the AI ​​voice radio remote control (that is, the wireless remote control 3) can be clicked, and the second lifting mechanism 15 on the partial wiping blackboard eraser 13 is lifted up with the partial wiping blackboard eraser 13, and the first lifting mechanism 14 is lowered to the wiping position with the overall wiping blackboard eraser 12, and then the first drive motor 183 is started, and moves with the first synchronous belt or the first drive screw 182, and the first drive screw 182 is moved with the slider 111, and the two sliders 111 are moved with the first support rod 112 and the second support rod 113, at this time, the partial wiping blackboard eraser 13 on the second support rod 113 is in a raised state, and the overall wiping blackboard eraser 12 on the first support rod 112 is lowered to the wiping state, then the overall wiping blackboard eraser 12 is carried by the first support rod 112 to wipe the entire blackboard, and the overall wiping blackboard eraser 12 can cover the vertical writing surface of the entire blackboard. Of course, the above actions can also be controlled by voice, for example, speaking the command "wipe the entire blackboard" to the AI ​​voice radio remote control can also perform the above wiping action;

[0090] When the blackboard erasing device of the present invention is performing the wiping work, when partial wiping is required, the partial wiping button 35 on the AI ​​voice radio remote control can be clicked, and the first lifting mechanism 14 rises with the overall wiping blackboard eraser 12, and then the laser beam button 33 on the wireless remote control 3 is pressed, and the built-in laser light on the wireless remote control 3 releases the laser beam. The wireless remote control 3 is manually operated to control the laser beam to circle the range to be wiped on the blackboard. At this time, the camera 4 records the area drawn by the laser beam on the blackboard and transmits it to the industrial computer 2, which fits and generates the wiping range to be executed, and sets the range to be wiped. After the area is wiped, release the laser beam button 33. At this time, the first drive motor 183 and the second drive motor are both in motion, and the local wiping blackboard eraser 13 is brought to the position to be wiped through the first drive screw 182 and the second synchronous belt. Then the second lifting mechanism 15 is activated to lower the local wiping blackboard eraser 13 to the wiping position. At this time, the first motor and the second motor are activated at the same time, driving the local wiping blackboard eraser 13 to wipe the designated area. After wiping is completed, the second lifting mechanism 15 will raise the local wiping blackboard eraser 13, and then the first drive motor 183 and the second drive motor are activated to return the local wiping blackboard eraser 13 to the starting position. Of course, voice control can also be used instead of pressing the local wiping button 35. For example, by pressing the voice button 34 on the AI ​​voice wireless remote control 3 and speaking the "local wiping" command, the function of the local wiping button 35 can be replaced.

[0091] As a preferred embodiment, the present invention adds a post-wiping recovery function based on the blackboard erasing device of the present invention.

[0092] The wipe recovery function is as follows Figure 7-9As shown, in the present invention, a projector 5 is added to the wiping device. Before each wiping action is performed (before wiping, it refers to the time period after issuing the wiping command, such as clicking the wiping button, and before the blackboard eraser is executed), the camera 4 will first take a picture of the area to be wiped, and store the picture in the industrial computer 2. When it is necessary to restore the content that has been wiped, the picture query button 36 on the wireless remote control 3 is used to query the picture. After selecting the picture to be restored, the restore confirmation button on the wireless remote control 3 is used, and then the projector 5 projects the picture to the original wiping area for display.

[0093] Specifically, a wipe recovery function button can be set on the wireless remote control 3. When the wipe recovery function button is selected, the image of the wiped content will be taken and saved by default during the subsequent wiping process. Clicking the wipe recovery function button again cancels the wipe recovery function, so the wiped content will no longer be photographed and stored during the subsequent wiping process.

[0094] When the wipe recovery function is selected:

[0095] When wiping the entire blackboard, the entire wiping button 32 on the AI ​​voice radio remote control (that is, the wireless remote control 3) can be clicked, and then before the first drive motor 183 and the second drive motor are activated, the industrial computer 2 controls the camera 4 to shoot the blackboard, and stores the photographed blackboard, and then performs the entire wiping action;

[0096] When wiping a part of the blackboard, you can click the local wiping button 35 on the AI ​​voice radio remote control (that is, the wireless remote control 3), and then use the laser beam lamp on the wireless remote control 3 to emit a laser beam to select the area to be wiped. After the area to be wiped is selected, the camera 4 takes a photo of it and stores it in the industrial computer 2, and then the overall wiping action is performed;

[0097] When restoration is needed, a command is issued through the picture playback button on the wireless remote control 3, the picture playback is displayed through the display screen 31 on the wireless remote control 3, the picture to be restored is selected, and a command is issued to the industrial computer 2, and the projector 5 is controlled by the industrial computer 2 to project the picture to be restored on the blackboard.

[0098] When the present invention is projecting, the projector 5 can project the image on the wiped area. For example, when partial wiping is performed, an area on the blackboard is wiped off. When restoration is required, the projector 5 can project the content of the area to the area again, which is convenient for re-viewing and connection of the blackboard content.

[0099] Furthermore, when teachers use the blackboard, there is often a situation where the board surface is not enough. Usually, they need to wipe the current board surface and then write on a new board. In this case, our recovery function can play back the board surfaces written by the teacher one by one through the projector 5, which not only makes it convenient for the teacher to check before and after, but also virtually expands the board surface, which is equivalent to having multiple boards for teachers to write.

[0100] When the teacher uses the function of saving after erasing, after a class, when teaching students in other classes again, the written content of the previous class can be directly projected, or the pictures saved by the industrial computer 2 can be copied and played in other classrooms, which greatly saves the teacher's physical strength and makes the teacher do not have to repeat the rewriting.

[0101] like Fig.11 As shown, as another embodiment of the present invention, the blackboard can be photographed and stored in an industrial computer, and the blackboard can be divided into regions in the industrial computer, and each region can be named, such as region 1, region 2, etc. Then, the voice function on the wireless remote control can be used to select different regions on the blackboard for local wiping. This embodiment only uses advance zoning and voice control on the selection of local wiping areas, and the stage of local wiping is consistent with the use of laser beams to define the range in the above embodiment, which will not be repeated here.

[0102] When the laser beam is emitted by pressing the button on the wireless remote control, a command will be sent to the camera at the same time. At this time, the camera will switch the camera's acquisition mode to the video stream mode (that is, dynamically capture the trajectory of the laser beam in real time) and save the video stream. When the button is released and the laser beam disappears, the camera will be instructed to stop acquisition again. At the same time, the algorithm installed in the industrial computer will automatically extract the target area of ​​the trajectory circled by the laser beam in the video stream, and merge the video stream trajectory of the laser beam into a single image (for easy display when restoration is needed). At this time, the coordinate position of the area is sent to the actuator through the internal algorithm for wiping action.

Claims

1. A blackboard erasing device, characterized in that: include, A blackboard erasing mechanism (1), the blackboard erasing mechanism (1) comprising a supporting module (11) movable along the length or width direction of a blackboard, an overall erasing blackboard eraser (12) and a partial erasing blackboard eraser (13) respectively arranged on both sides of the moving direction of the supporting module (11), the overall erasing blackboard eraser (12) being connected to the supporting module (11) via a first lifting mechanism (14), the partial erasing blackboard eraser (13) being connected to a moving block (16) via a second lifting mechanism (15), the moving block (16) being driven to move on the supporting module (11) via a moving power mechanism (17), and the supporting module (11) being driven to move along the length or width direction of the blackboard via a driving mechanism (18); An industrial computer (2), wherein the driving mechanism (18), the first lifting mechanism (14) and the second lifting mechanism (15) are all connected to the industrial computer (2); A wireless remote control (3), the wireless remote control (3) is connected to the industrial computer (2) via a wireless signal, and a laser light is installed on the wireless remote control (3); A camera (4) is placed in front of the blackboard for photographing the blackboard, and the camera (4) is connected to the industrial computer (2).

2. The blackboard erasing device according to claim 1, characterized in that: The driving mechanism (18) comprises: There are two guide rails (181), which are arranged on both sides of the support module (11) in the length direction, and the support module (11) is slidably matched along the length direction of the guide rails (181); A first driving screw (182), wherein the first driving screw (182) is rotatably mounted on one side of at least one of the guide rails (181), and the first driving screw (182) is threadedly engaged with the support module (11); The first driving motor (183) is used to drive the first driving screw (182) to rotate.

3. The blackboard erasing device according to claim 1, characterized in that: The driving mechanism (18) comprises: Guide rails (181), there are two guide rails (181), which are arranged on both sides of the support module (11) in the length direction; A first synchronous belt group, wherein the first synchronous belt group is arranged on at least one guide rail (181), the first synchronous belt group is composed of a first synchronous wheel (184) rotatably connected to both ends of the guide rail (181) in the length direction and a first synchronous belt (185) between the two first synchronous wheels (184), the support module (11) and the first synchronous belt (185) are fixedly connected, and the first synchronous belt (185) carries the support module (11) to move along the guide rail (181); The first driving motor (183) is used to drive the first synchronous wheel (184) at one end of the guide rail (181) to rotate.

4. The blackboard erasing device according to claim 2 or 3, characterized in that: The supporting module (11) comprises: Sliding blocks (111), there are two sliding blocks (111), which are respectively slidably connected to the guide rails (181); A first support rod (112), the first support rod (112) is connected between the two sliders (111), and the first support rod (112) is used to support the overall wiping blackboard eraser (12); A second support rod (113), the second support rod (113) is connected between the two sliders (111), and the second support rod (113) is placed on one side of the first support rod (112) in the width direction, and the second support rod (113) is used to support the partial wiping blackboard eraser (13).

5. The blackboard erasing device according to claim 4, characterized in that: The mobile power mechanism (17) comprises: A second synchronous belt group, the second synchronous belt group is composed of a second synchronous wheel (171) rotatably connected to both ends of the second support rod (113) in the length direction and a second synchronous belt (172) between the two second synchronous wheels (171); the moving block (16) is slidably engaged on the second support rod (113) along the length direction of the second support rod (113); the moving block (16) is driven to move by the second synchronous belt (172); The second driving motor (173) is used to drive the second synchronous wheel (171) at one end of the second supporting rod (113) to rotate.

6. The blackboard erasing device according to claim 1, characterized in that: A plurality of first guide rods (121) are fixed to the upper end of the overall wiping blackboard eraser (12) along its length direction, and the first guide rods (121) are slidably connected to the supporting module (11); a plurality of second guide rods (131) are fixed to the upper end of the partial wiping blackboard eraser (13), and the second guide rods (131) are slidably connected to the moving block (16).

7. The blackboard erasing device according to claim 1, characterized in that: The axial extension direction of the support rod is perpendicular to its moving direction.

8. The blackboard erasing device according to claim 1, characterized in that: The wireless remote control (3) has a voice remote control function, and is provided with a display screen (31), an overall wiping button (32), a laser beam button (33), a voice button (34), a partial wiping button (35) and a picture query button (36); Wiping the entire blackboard: When the entire blackboard needs to be wiped, click the overall wiping button (32) on the wireless remote control (3), and the partial wiping blackboard eraser (13) will be lifted up by the second lifting mechanism (15), and the overall wiping blackboard eraser (12) will be lowered by the first lifting mechanism (14), and the supporting module (11) will be driven to move by the driving mechanism (18), thereby driving the overall wiping blackboard eraser (12) to wipe the entire blackboard; Wiping of designated areas: When it is necessary to wipe a part of the blackboard, click the local wiping button (35) on the wireless remote control (3), and the whole blackboard eraser (12) will be lifted up under the drive of the first lifting mechanism (14). Then press and hold the laser beam button (33) on the wireless remote control (3) to manually circle the area to be wiped. At this time, the camera (4) records the area drawn by the laser beam on the blackboard and transmits it to the industrial computer (2). After setting the area to be wiped, release the laser beam. The button (33) is pressed, the supporting module (11) is driven to move by the driving mechanism (18), and the partial wiping blackboard eraser (13) is moved to the area to be wiped. The partial wiping blackboard eraser (13) is driven to descend by the second lifting mechanism (15). At this time, the first driving motor (183) drives the supporting module (11) to move as a whole, and the moving block (16) is driven to move on the supporting module (11) by the moving power mechanism (17), thereby driving the partial wiping blackboard eraser (13) to partially wipe the blackboard; The display screen (31) on the wireless remote control (3) can display the currently executed instructions in real time.

9. A method for restoring blackboard erase based on AI intelligent technology using the device described in any one of claims 1 to 8, characterized in that: include, A projector (5), which is connected to the industrial computer (2) and is used to project images onto a blackboard; Before each wiping (before wiping, it means the period after issuing the wiping command, such as clicking the wiping button, but before the blackboard eraser is executed), the camera (4) will first take a picture of the area to be wiped and store it. When the display needs to be restored, the picture query button (36) on the wireless remote control (3) is used to query the picture, and then the projector will project the picture onto the blackboard for display in real time.

10. A method for restoring blackboard erase based on AI intelligent technology using the device described in any one of claims 1 to 8, characterized in that: include, A projector (5), the projector (5) being connected to the industrial computer (2) and used for projecting images onto a blackboard; The method of erasing the blackboard is as follows: Step 1: Select the wiping area via the wireless remote control (3); Step 2: After selecting the wiping area, the camera (4) takes a picture of the wiping area and saves the picture in the local industrial computer (2); Step 3: the industrial computer (2) controls the blackboard eraser to wipe the area that needs to be wiped; How to restore after wiping: Step 1: Send a command through the picture query button (36) on the wireless remote control (3), display the playback of pictures through the display screen (31) on the wireless remote control (3), and select the picture to be restored; Step 2: After selecting the image to be restored through the wireless remote control (3), a command is sent to the industrial computer (2), and the projector is controlled by the industrial computer (2) to project the image to be restored onto the blackboard.

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