Homework correcting equipment

Abstract

The utility model relates to the technical field of intelligent learning equipment, and provides homework correcting equipment which comprises an equipment body, a processor and a wide-angle camera. The equipment body is configured to be arranged on a platform for placing homework to be corrected. The processor and the wide-angle camera are respectively arranged on the equipment body, and the wide-angle camera is configured to be obliquely arranged downwards towards the platform and is in communication connection with the processor. The wide-angle camera is used for collecting image information of a to-be-corrected homework, and the processor is used for processing the image information to obtain a correction result corresponding to the to-be-corrected homework. According to the homework correcting equipment, the wide-angle camera is adopted and is obliquely arranged, and the wide-angle camera has a larger field angle, so that the setting height of the wide-angle camera is reduced while the size of a shooting area on the platform is ensured, and the overall height of the equipment body is reduced; and the size of the whole homework correcting equipment is smaller.

Description

TECHNICAL FIELD

[0001] The utility model relates to intelligent learning equipment technical field especially relates to a homework correction equipment. BACKGROUND

[0002] Teachers correct student homework need to spend a lot of time and effort, and students are also difficult to accurately judge the correctness of the homework and the error reason when self-learning. To solve the above problems, part of the intelligent learning equipment has the function of automatically correcting homework, specifically, the intelligent learning equipment can shoot the homework, then process and identify the photographed image, identify the corresponding questions and answers through OCR (Optical Character Recognition) technology, and compare with the questions and answers stored in the database, judge the correctness of the homework and get the corresponding correction result. In order to make the camera of the intelligent learning equipment have a large enough shooting range to facilitate the placement of the homework, the camera is usually set at a high position, so that the overall intelligent learning equipment is high and large in size, which is not convenient to carry. UTILITY MODEL CONTENT

[0003] The utility model provides a homework correction equipment to solve the defects that the size of intelligent learning equipment is large and inconvenient to carry in prior art.

[0004] The utility model provides a homework correction equipment, which comprises:

[0005] A device body is configured to be arranged on a platform for placing the homework to be corrected;

[0006] A processor and a wide-angle camera are arranged in the device body respectively, the wide-angle camera is configured to be arranged obliquely downward toward the platform and is in communication connection with the processor;

[0007] The wide-angle camera is used for collecting image information of the homework to be corrected, and the processor is used for processing the image information to obtain a correction result corresponding to the homework to be corrected.

[0008] According to the utility model, the homework correction equipment further comprises a projector, the projector is arranged in the device body and located on the lower side of the wide-angle camera, and the projector is in communication connection with the processor.

[0009] The processor is further used for controlling the projector to project a marking area on the platform, the marking area is used for placing the homework to be corrected, and the wide-angle camera is configured to face the marking area.

[0010] The angle range of the optical axis of the wide-angle camera relative to the horizontal plane is not less than 45 degrees and not more than 52 degrees.

[0011] The vertical field angle of the wide-angle camera is not less than 53.9 degrees and not more than 80.1 degrees.

[0012] The projector and the wide-angle camera are rotatably arranged on the device body.

[0013] The device further comprises an angle sensor and a driving mechanism.

[0014] The angle sensor and the driving mechanism are communicatively connected, and the driving mechanism is arranged on the device body and connected with the wide-angle camera.

[0015] The angle sensor is used for collecting the angle information of the projector, and the driving mechanism is used for controlling the rotation of the wide-angle camera according to the angle information, so that the wide-angle camera is directed to the identification area.

[0016] The device further comprises a sound pickup module and a loudspeaker, and the sound pickup module and the loudspeaker are arranged on the device body.

[0017] The sound pickup module is used for receiving the voice instruction inputted from outside, and the processor is used for controlling the working state of the wide-angle camera and the projector according to the voice instruction, and controlling the loudspeaker to output the voice feedback information for identifying the working state of the wide-angle camera and the projector.

[0018] The device further comprises a communication module, which is arranged on the device body and communicatively connected with the processor.

[0019] The communication module comprises one or more of a USB interface, a WIFI module and a Bluetooth module.

[0020] The device further comprises a charging interface, a power management module and a battery module.

[0021] The charging interface is connected with the power management module and the battery module, and the power management module is connected with the processor.

[0022] The wide-angle camera is two, and the two wide-angle cameras are arranged on opposite sides of the equipment body.

[0023] The work correction equipment has the processor and the wide-angle camera arranged on the equipment body, and the equipment body is arranged on the platform on which the work to be corrected is placed, so as to collect image information of the work to be corrected by the wide-angle camera, the processor identifies the questions and corresponding answers contained in the image information through the image-text recognition technology, judges the answers on the work to be corrected based on the standard answers of the questions, and obtains the correction results of each question. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description.

[0025] Figure 1 is a flowchart of the work correction equipment provided by the embodiment of the present application.

[0026] Figure 2 is a system diagram of the work correction equipment provided by the embodiment of the present application.

[0027] Figure 3 is one of the schematic diagrams of the equipment body and the wide-angle camera provided by the embodiment of the present application.

[0028] Figure 4 is the second schematic diagram of the equipment body and the wide-angle camera provided by the embodiment of the present application.

[0029] Figure 5 is one of the schematic diagrams of the equipment body and the wide-angle camera provided by another embodiment of the present application.

[0030] Figure 6 is the second schematic diagram of the equipment body and the wide-angle camera provided by another embodiment of the present application.

[0031] Reference signs:

[0032] 1, work correction equipment;

[0033] 11, device body; 12, processor; 13, wide-angle camera; 14, projector; 15, sound pickup module; 16, loudspeaker; 17, communication module; 18, power management module; 181, charging interface; 19, battery module. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the present application more clear, the technical scheme of the present application will be described clearly and completely below in combination with the drawings in the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0035] The working correction device of the present application will be described below in combination with Figures 1-6 The working correction device of the present application will be described below in combination with

[0036] As shown in Figure 1 and Figure 2 The present application provides a working correction device 1, which comprises a device body 11, a processor 12 and a wide-angle camera 13. The device body 11 is configured to be arranged on a platform for placing a working to be corrected. The processor 12 and the wide-angle camera 13 are arranged on the device body 11 respectively, and the wide-angle camera 13 is configured to be arranged obliquely downward toward the platform and is in communication connection with the processor 12. The wide-angle camera 13 is used to collect image information of the working to be corrected, and the processor 12 is used to process the image information to obtain a correction result corresponding to the working to be corrected.

[0037] In the present embodiment, the device body 11 is installed with the processor 12 and the wide-angle camera 13, and is used to be arranged on the same platform (such as a desktop, the ground, etc.) as the working to be corrected. Among them, the wide-angle camera 13 is obliquely downward toward the platform, so as to shoot the working to be corrected which is laid on the platform and located at one side of the device body 11, and transmit the image information of the working to be corrected obtained by shooting to the processor 12. The processor 12 is used to complete the correction of the working to be corrected based on the image information, and obtain the corresponding correction result.

[0038] Specifically, the processor 12 can first correct the image, and then recognize all the questions and all the answers contained in the image information through an image-text recognition technology (such as OCR), and search in a database pre-stored with questions and corresponding standard answers. By comparing the answers corresponding to each question on the working to be corrected with the standard answers, the judgment result of each question can be obtained, and then the correction result of all the questions on the working to be corrected can be obtained.

[0039] Meanwhile, by arranging the wide-angle camera 13 on the device body 11 and arranging the wide-angle camera 13 to be inclined, compared with the camera of the conventional intelligent learning device, the wide-angle camera 13 of the embodiment can form a larger shooting area on the platform at the same height position, so that the wide-angle camera 13 of the embodiment can be arranged at a lower position when the shooting areas are the same, which is beneficial to reduce the overall height of the device body 11 and make the size of the whole work correction device 1 smaller, and is more convenient to carry.

[0040] The work correction device 1 of the utility model, through setting processor 12 and wide-angle camera 13 on device body 11, device body 11 is arranged on the platform where the work to be corrected is placed, so as to collect the image information of the work to be corrected by wide-angle camera 13, and the processor 12 identifies the questions and corresponding answers contained in the image information by image recognition technology, and judges the answers on the work to be corrected based on the standard answers of the questions, and obtains the correction results of each question, and simultaneously, by adopting wide-angle camera 13 and arranging wide-angle camera 13 to be inclined, wide-angle camera 13 has a larger field of view, which is beneficial to reduce the setting height of wide-angle camera 13 while ensuring the size of the shooting area on the platform, thereby reducing the overall height of the device body 11, making the size of the whole work correction device 1 smaller, and effectively solving the defects that the size of the intelligent learning device is large and inconvenient to carry in the prior art.

[0041] It can be understood that a memory can be arranged on the device body 11 for storing questions and corresponding standard answers, and the processor 12 can search in the stored questions based on the image information of the work to be corrected to obtain the corresponding standard answers for correction, or the processor 12 can also communicate with an external storage device (such as a server) through Bluetooth, wireless network and the like, and the processor 12 can search in the external storage device based on the image information of the work to be corrected to obtain the corresponding standard answers.

[0042] In some embodiments, as shown in Figure 1 and Figure 2 The work correction device 1 further comprises a projector 14, the projector 14 is arranged on the device body 11 and located on the lower side of the wide-angle camera 13, and the projector 14 is in communication connection with the processor 12. The processor 12 is further used for controlling the projector 14 to project a marking area on the platform, the marking area is used for placing the work to be corrected, and the wide-angle camera 13 is configured to face the marking area.

[0043] In the embodiment, the projector 14 can project an identification area on the platform under the control of the processor 12. For example, the projector 14 can project an image of a frame on the platform, and the identification area is inside the frame. The user can place the to-be-corrected work in the identification area. The identification area is in the shooting area of the wide-angle camera 13, which facilitates the wide-angle camera 13 to shoot the to-be-corrected work. The user can not place the to-be-corrected work outside the shooting area of the wide-angle camera 13, which can not collect image information. The user can operate conveniently. Meanwhile, the projector 14 is arranged below the wide-angle camera 13, which can reduce the overall height of the device body 11, thereby reducing the overall size of the work correction device 1.

[0044] Specifically, the projector 14 can be a short-focus projector. The short-focus projector can project a larger image in a shorter projection distance. The projector 14 can project a larger identification area at a lower position, which can cooperate with the wide-angle camera 13 to ensure that a large enough shooting area and identification area are formed on the platform, and facilitate to reduce the setting height of the wide-angle camera 13 and the projector 14, thereby facilitating to reduce the overall size of the work correction device 1.

[0045] It can be understood that the projector 14 can also be used to receive the correction result obtained by the processor 12 and project the correction result directly on the to-be-corrected work, so that the user can view the correction result.

[0046] In some embodiments, the angle range of the optical axis of the wide-angle camera 13 relative to the horizontal plane is not less than 45° and not more than 52°. The vertical field of view angle of the wide-angle camera 13 along the vertical plane ranges from not less than 53.9° to not more than 80.1°.

[0047] In the embodiment, the range of the vertical field of view angle of the wide-angle camera 13 is limited, so as to limit the shooting range of the wide-angle camera 13 on the platform, thereby forming a large enough shooting range on the platform, facilitating to place and set the to-be-corrected work; meanwhile, the direction of the optical axis of the wide-angle camera 13 is limited, so as to avoid that the image shot is deformed too much due to the shooting angle and perspective, and facilitate to identify the image after correction.

[0048] It can be understood that the field of view angle of the lens includes a horizontal field of view angle, a vertical field of view angle and a diagonal field of view angle. The horizontal field of view angle is the range of the view angle along the horizontal direction when the optical axis of the lens is arranged along the horizontal direction. The vertical field of view angle is the range of the view angle along the vertical direction when the optical axis of the lens is arranged along the horizontal direction. The diagonal field of view angle is the range of the view angle along the diagonal direction when the optical axis of the lens is arranged along the horizontal direction.

[0049] In a specific embodiment, as shown inFigure 3 and Figure 4 As shown in FIG. 6, the vertical field of view of the wide-angle camera 13 is 53.9°, the horizontal field of view is 68.4°, the diagonal field of view is 80.9°, the angle of the optical axis of the wide-angle camera 13 relative to the horizontal plane is 52°, and the height of the wide-angle camera 13 is 242.91 mm. Figure 3 The dashed portion in FIG. 6 is the shooting range of the wide-angle camera 13.

[0050] In another embodiment, as shown in FIG. 7, Figure 5 and Figure 6 As shown in FIG. 7, the vertical field of view of the wide-angle camera 13 is 80.1°, the horizontal field of view is 99.2°, the diagonal field of view is 120.2°, the angle of the optical axis of the wide-angle camera 13 relative to the horizontal plane is 45°, and the height of the wide-angle camera 13 is 266.16 mm. Figure 5 The dashed portion in FIG. 7 is the shooting range of the wide-angle camera 13.

[0051] The wide-angle camera 13 in the above two embodiments can each be provided with an A3-sized identification area in the shooting area formed on the platform to place the work to be corrected.

[0052] It can be understood that the vertical field of view of the wide-angle camera 13 can also be set between 53.9° and 80.1°, and the angle of the optical axis of the wide-angle camera 13 relative to the horizontal plane can also be adjusted between 45° and 52° accordingly.

[0053] In some embodiments, the projector 14 and the wide-angle camera 13 are rotatably arranged on the device body 11 about a horizontal axis.

[0054] In the present embodiment, the projector 14 and the wide-angle camera 13 can rotate about the horizontal axis, the wide-angle camera 13 can be rotated to adjust the position and size of the shooting area of the wide-angle camera 13 on the platform, and the projector 14 can be rotated to adjust the position and size of the identification area projected by the projector 14 on the platform, so that the user can adjust the shooting area of the wide-angle camera 13 on the platform and the identification area projected by the projector 14 on the platform according to the actual use requirements, and the structure is simple, practical and flexible, and can meet different use scenarios of the user.

[0055] Further, in some embodiments not shown, the work correction device 1 further comprises an angle sensor and a driving mechanism. The angle sensor and the driving mechanism are in communication connection, the driving mechanism is arranged on the device body 11 and connected with the wide-angle camera 13. The angle sensor is used to collect the angle information of the rotation of the projector 14, and the driving mechanism is used to control the rotation of the wide-angle camera 13 according to the angle information, so that the wide-angle camera 13 is directed towards the identification area.

[0056] In the embodiment, the projector 14 can be driven to rotate in a manual dialing or an electric driving manner, so that the user adjusts the position and size of the identification area according to the placement requirement of the to-be-corrected work, and the angle sensor can be used to detect the angle information of the rotation of the projector 14 and transmit the angle information to the driving mechanism, and the driving mechanism can control the rotation of the wide-angle camera 13 according to the angle information, so that the wide-angle camera 13 is re-aligned with the identification area, so that the wide-angle camera 13 can automatically align with the identification area after the user adjusts the identification area, without manual adjustment, and the operation is more convenient.

[0057] In some embodiments, as shown in Figure 2 The work correction device 1 further includes a sound pickup module 15 and a loudspeaker 16, both of which are arranged on the device body 11, and the sound pickup module 15 and the loudspeaker 16 are connected with the processor 12. The sound pickup module 15 is used to receive an externally input voice instruction. The processor 12 is used to control the working states of the wide-angle camera 13 and the projector 14 according to the voice instruction, and control the loudspeaker 16 to output voice feedback information indicating the working states of the wide-angle camera 13 and the projector 14.

[0058] In the embodiment, the sound pickup module 15 and the loudspeaker 16 are arranged on the device body 11, and the sound pickup module 15 and the loudspeaker 16 are connected with the processor 12, so that the user and the work correction device 1 can perform voice interaction. Specifically, the user can input a voice instruction to the sound pickup module 15, the processor 12 controls the projector 14 to project an identification area on the platform according to the voice instruction, controls the wide-angle camera 13 to shoot the to-be-corrected work placed in the identification area, and transmits image information to the processor 12, and the processor 12 completes correction based on the image information to obtain a correction result. When the user inputs the voice instruction, the processor 12 can also control the loudspeaker 16 to output voice feedback information when controlling the wide-angle camera 13 and the projector 14 to correct the work, so as to inform the user of the current working state of the devices, thereby facilitating the user to operate.

[0059] For example, the user can input a voice instruction of starting projection through the sound pickup module 15 to control the projector 14 to complete the area projection of the identification area on the platform, and the loudspeaker 16 plays corresponding voice prompts after the projector 14 starts working and completes projection to remind the user of the start and completion of the identification area projection work, so that the user can place the to-be-corrected work in the identification area after the projection is completed. In the subsequent correction process, the sound pickup module 15 and the loudspeaker 16 have similar functions, which will not be described here.

[0060] In some embodiments, as shown in Figure 2As shown, the homework correction device 1 further includes a communication module 17, which is arranged on the device body 11 and in communication connection with the processor 12, and is configured to be in communication connection with an external device.

[0061] In this embodiment, the communication module 17 is arranged to enable the processor 12 to be connected with the external device through the communication module 17, so as to output information to the external device or input information from the external device to the processor 12. Specifically, the external device can include a computer, a mobile phone or the like, and the user can input control instructions to the processor 12 through the computer or the mobile phone to control the homework correction device 1 to complete homework correction and output the corresponding correction results to the computer or the mobile phone for the user to view; or the external device can be a display and a headset or the like to facilitate the output of images and audio; or the external device can be a keyboard and a mouse or the like to facilitate the direct control of the homework correction device 1.

[0062] Optionally, in some embodiments, the communication module 17 includes one or more of a USB interface, a WIFI module and a Bluetooth module.

[0063] In this embodiment, the communication module 17 includes one or more of a USB interface, a WIFI module and a Bluetooth module, so as to be connected with external devices having various different interfaces to meet various use scenarios and needs of the user.

[0064] In some embodiments, as shown, Figure 2 The homework correction device 1 further includes a charging interface 181, a power management module 18 and a battery module 19. The charging interface 181 is connected with the power management module 18 and the battery module 19, and the power management module 18 is connected with the processor 12.

[0065] In this embodiment, the charging interface 181, the battery module 19 and the processor 12 are all connected with the power management module 18, which is configured to manage the power supply to the processor 12. Specifically, the battery module 19 can supply power to the processor 12 through the power management module 18; the charging interface 181 can be connected with an external power supply to supply power to the power management module 18 through the external power supply, and the power management module 18 can distribute the power input from the external power supply according to the use needs, a part of which is used to supply power to the processor 12, and the other part is used to charge the battery module 19, so as to meet the use needs of the user in different scenarios.

[0066] In some embodiments, the wide-angle camera 13 has two, which are arranged on opposite sides of the device body 11.

[0067] In the embodiment, by arranging two wide-angle cameras 13, the two wide-angle cameras 13 can be used to shoot the to-be-corrected homework, so that the homework correction device 1 has a larger shooting range, and is convenient for users to use.

[0068] It can be understood that the two wide-angle cameras 13 can be matched with the projector 14 to meet different use requirements.

[0069] Specifically, one of the wide-angle cameras 13 and the projector 14 are arranged on the same side of the device body 11, so as to project an identification area on the platform by the projector 14, and shoot the to-be-corrected homework in the identification area by the wide-angle camera 13.

[0070] The other wide-angle camera 13 and the projector 14 are arranged on opposite sides of the device body 11, when the wide-angle camera 13 is used to shoot the to-be-corrected homework, the projector 14 can project the image currently shot by the wide-angle camera 13, so as to facilitate the user to adjust the position of the to-be-corrected homework, so that the wide-angle camera 13 can be aligned with the to-be-corrected homework, after the correction of the homework is completed, the projector 14 can project the correction result on the other side of the device body 11, so as to facilitate the user (such as a teacher) to view, display and explain the correction result.

[0071] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A work correction device characterized by comprising: The device comprises: a device body configured to be placed on a platform for placing a work to be corrected; a processor and a wide-angle camera, which are respectively arranged in the device body, the wide-angle camera is configured to be arranged obliquely downward toward the platform and is in communication connection with the processor; the wide-angle camera is used to collect image information of the work to be corrected, and the processor is used to process the image information to obtain a correction result corresponding to the work to be corrected; a projector, which is arranged in the device body, the projector is in communication connection with the processor; the projector and the wide-angle camera are rotatably arranged around a horizontal axis in the device body; the processor is further used to control the projector to project an identification area on the platform, the identification area is used to place the work to be corrected; the wide-angle camera is configured to face the identification area; an angle sensor and a driving mechanism; the angle sensor and the driving mechanism are in communication connection, the driving mechanism is arranged in the device body and is connected with the wide-angle camera; the angle sensor is used to collect angle information of the rotation of the projector, and the driving mechanism is used to control the rotation of the wide-angle camera according to the angle information, so that the wide-angle camera faces the identification area.

2. The work correction apparatus according to claim 1, characterized by The projector is located on the lower side of the wide-angle camera.

3. The work correction apparatus according to claim 1 or 2, characterized by, The angle range of the optical axis of the wide-angle camera relative to the horizontal plane is not less than 45° and not more than 52°; the vertical field of view angle of the wide-angle camera along the vertical plane ranges from not less than 53.9° to not more than 80.1°.

4. The work correction apparatus according to claim 2, characterized by Further comprising a sound pickup module and a loudspeaker, both of which are arranged in the device body; the sound pickup module and the loudspeaker are connected with the processor; the sound pickup module is used to receive an externally input voice instruction; the processor is used to control the working state of the wide-angle camera and the projector according to the voice instruction, and control the loudspeaker to output voice feedback information for identifying the working state of the wide-angle camera and the projector.

5. The work correction apparatus according to claim 1, characterized by Further comprising a communication module, which is arranged in the device body, the communication module is in communication connection with the processor, and the communication module is used to be in communication connection with an external device.

6. The work correction apparatus according to claim 5, characterized by The communication module comprises one or more of a USB interface, a WIFI module and a Bluetooth module.

7. The work correction apparatus according to claim 1, characterized by Further comprising: a charging interface, a power management module and a battery module; the charging interface is connected through the power management module and the battery module, and the power management module is connected with the processor.

8. The work correction apparatus according to claim 1, characterized by The wide-angle camera has two, and the two wide-angle cameras are respectively arranged on opposite sides of the device body.

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