Student innovative answer scoring equipment based on OCR and large language model
The scoring device, which combines OCR with a large language model, solves the problems of time-consuming, labor-intensive, and subjective scoring in traditional scoring methods, and enables fast, fair, and comprehensive scoring of students' innovative assignments.
Patent Information
- Application Number
- CN202510915739.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-03
- Publication Date
- 2025-11-14
AI Technical Summary
Traditional grading methods are time-consuming and labor-intensive, and are subject to subjectivity and inconsistency, making it difficult to comprehensively evaluate students' innovative work.
Combining OCR technology and a large language model, the system captures exam papers with a camera and converts them into digital information. It then uses image recognition and natural language processing programs for deep understanding and provides annotations based on a database.
It achieves fast, fair, comprehensive and accurate scoring, reduces the time and subjectivity of manual scoring, and improves the ability to evaluate students' innovative works.
Smart Images
Figure CN120954007A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of answer scoring equipment technology, and in particular to a student innovative answer scoring equipment based on OCR and a large language model. Background Technology
[0002] Traditional grading methods rely on teachers manually reading and evaluating each student's work, which is not only time-consuming and labor-intensive but also prone to subjectivity and inconsistency. In recent years, with the development of computer technology, image recognition technology (especially Optical Character Recognition, OCR) and natural language processing technology (large language models) have been widely applied, providing new solutions for grading and evaluation. OCR technology can quickly and accurately convert students' handwritten or printed text into processable digital information, making automated grading possible. Large language models, on the other hand, provide powerful text understanding and generation capabilities, making them highly accurate and reliable in analyzing and evaluating student work.
[0003] While some existing grading systems can alleviate teachers' workload to some extent, they often focus on simple textual correctness or grading logic based on pre-set rules, lacking a comprehensive assessment of students' creativity and in-depth understanding. Especially in the context of educational innovation, accurately identifying students' unique insights, creative thinking, and problem-solving strategies in their assignments has become a pressing issue. OCR technology can process large amounts of text data, while large language models, through language patterns learned by neural networks, can generate high-quality answers and evaluation criteria, realizing a shift from quantitative grading to qualitative analysis. Combining these two technologies can effectively improve the intelligence of the grading system, not only rapidly processing large amounts of assignment information but also providing fairer, more comprehensive, and accurate grading results through a deeper understanding of the logic and content of students' answers. In conclusion, current grading systems and methods have certain limitations, particularly in identifying and grading students' innovative assignments, which requires further improvement.
[0004] Therefore, it is necessary to provide a scoring device for students' innovative answers based on OCR and large language models to solve the above-mentioned technical problems. Summary of the Invention
[0005] To address the aforementioned technical problems, this invention provides a student creative answer scoring device based on OCR and a large language model.
[0006] The present invention provides a student creative answer scoring device based on OCR and a large language model, comprising: a support base, the top of which is connected to a placement plate via an adjustment mechanism; a camera is mounted on the top of the placement plate, the camera is connected to the top of the support base via an L-shaped connecting plate, the camera is electrically connected to a connection port of a processing device with a display screen, the processing device is equipped with an image recognition program, a natural language processing program, and a database; an adsorption plate is mounted on the top of the placement plate, the bottom of the adsorption plate has adsorption holes, the top of the adsorption holes has an adsorption pump, the top of the adsorption plate is connected to the telescopic end of a lifting cylinder, the top of the lifting cylinder is connected to a horizontal slide rail via a slider, the bottom of the horizontal slide rail is connected to the top of the support base via a slide rail bracket, and the tops of the support bases on both sides of the placement plate are respectively provided with an upper loading plate and an lower loading plate.
[0007] Preferably, the adjustment mechanism includes a movable plate, the bottom of which is connected to a movable slide rail via a slider, the bottom of which is fitted with the interior of a slide rail groove, which is located on the top of the support base.
[0008] Preferably, there are multiple movable slide rails, which are linearly and equidistantly installed at the bottom of the movable plate.
[0009] Preferably, the bottom ends of the movable plate are respectively connected to the top of the first protective plate and the second protective plate, the first protective plate and the second protective plate are respectively slidably connected to the first protective groove and the second protective groove, and the first protective groove and the second protective groove are respectively provided at both ends of the top of the support base.
[0010] Preferably, the processing device has a network module installed inside, which is connected to the Internet via a network cable or a wireless network.
[0011] Preferably, the display screen is an operable LCD screen.
[0012] Preferably, a protective frame is installed on the top edge of the placement plate, and an identification line is drawn on the top of the protective frame.
[0013] Compared with related technologies, the student creative answer scoring device based on OCR and a large language model provided by this invention has the following beneficial effects:
[0014] 1. This invention uses a camera to photograph the test paper and uploads the captured image information to an image recognition program. The image recognition program converts the image into processable digital information, and the natural language processing program processes the digital information and generates annotations based on its understanding of the text and a database. This provides a fairer, more comprehensive and accurate scoring result, effectively solving the problem that traditional scoring methods rely on teachers manually reading and evaluating each student's work, which consumes a lot of time and energy and may lead to subjectivity and inconsistency in scoring.
[0015] 2. By setting a first protective plate and a second protective plate, which cooperate with the moving plate, the present invention can form a protective area on the outside of the slider of the moving slide rail, preventing foreign objects from entering and causing damage to the moving slide rail, affecting subsequent use. In addition, the limiting and guiding of the first protective groove and the second protective groove can improve the stability of the moving plate moving back and forth.
[0016] 3. This invention, by setting a protective frame, prevents the test paper from being blown away by wind during movement after the text is placed on the placement board, thus affecting subsequent shooting operations. In addition, the recognition line is used to remind the camera to start and stop. Attached Figure Description
[0017] Figure 1 A schematic diagram of a preferred embodiment of the student creative answer scoring device based on OCR and a large language model provided by the present invention;
[0018] Figure 2 for Figure 1 The diagram shown is a right-view structural schematic of a student creative response scoring device based on OCR and a large language model.
[0019] Figure 3 for Figure 1 The diagram shows the structure of the first and second protective plates.
[0020] Figure 4 for Figure 1 The diagram shows the structure of the adsorption pores.
[0021] Figure 5 for Figure 1 The diagram shows the flow structure of the processing device.
[0022] The following are the labels in the diagram: 1. Support base; 2. Slide rail frame; 3. Adsorption plate; 4. Lifting cylinder; 5. Adsorption pump; 6. Feeding plate; 7. Discharging plate; 8. Camera; 9. Connecting plate; 10. Moving plate; 11. Placement plate; 12. Protective frame; 13. Slide rail groove; 14. Moving slide rail; 15. First protective groove; 16. Second protective groove; 17. First protective plate; 18. Second protective plate; 19. Adsorption hole; 20. Horizontal slide rail. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.
[0024] refer to Figures 1 to 5 The present invention provides a student innovative answer scoring device based on OCR and a large language model, comprising: a support base 1, the top of which is connected to a placement plate 11 via an adjustment mechanism; a camera 8 is provided above the placement plate 11, the camera 8 is connected to the top of the support base 1 via an L-shaped connecting plate 9; the camera 8 is electrically connected to a connection port of a processing device with a display screen; the processing device is equipped with an image recognition program, a natural language processing program, and a database; an adsorption plate 3 is provided above the placement plate 11; an adsorption hole 19 is provided at the bottom of the adsorption plate 3; an adsorption pump 5 is provided at the top of the adsorption hole 19; the top of the adsorption plate 3 is connected to the telescopic end of a lifting cylinder 4; the top of the lifting cylinder 4 is connected to a horizontal slide rail 20 via a slider; the bottom of the horizontal slide rail 20 is connected to the top of the support base 1 via a slide rail frame 2; and an upper loading plate 6 and an lower loading plate 7 are respectively provided on the top of the support base 1 on both sides of the placement plate 11.
[0025] It should be noted that the core of the image recognition program uses an Optical Character Recognition (OCR) model, which can quickly and accurately convert students' handwritten or printed text into processable digital information through OCR technology. The core of the natural language processing program is a large language model, which, through its powerful text understanding and generation capabilities, works in conjunction with the image recognition program to process the digital information and generate annotations based on its understanding of the text and a database.
[0026] In use, the test paper to be approved can be placed on the loading plate 6, and the test paper is attracted by the suction holes 19 on the suction plate. Driven by the horizontal slide rail 20, the suction plate 3 is moved to move the test paper above the placement plate 11. Then, the suction plate 3 is lowered by the lifting cylinder 4 and the test paper is placed in it. Then, driven by the adjustment mechanism, the placement plate 11 is moved along the top of the support base 1 to the bottom of the camera 8. The camera 8 takes a picture of the test paper and uploads the image information to the image recognition program. The image recognition program converts the image into processable digital information, and the natural language processing program processes the digital information and adds annotations based on its understanding of the text and the database. This provides a fairer, more comprehensive and accurate scoring result, effectively solving the problem that the traditional scoring method relies on teachers to manually read and evaluate each student's work, which consumes a lot of time and energy and may lead to subjectivity and inconsistency in scoring.
[0027] In an embodiment of the present invention, reference is made to... Figure 2 As shown, the adjustment mechanism includes a movable plate 10, the bottom of which is connected to a movable slide rail 14 via a slider, and the bottom of the movable slide rail 14 is fitted with the interior of a slide rail groove 13, which is located on the top of the support base 1.
[0028] It should be noted that by setting the movable slide rail 14, the movable plate 10 can be driven to move back and forth, thereby driving the placement plate 11 connected to the movable plate 10 and the items on it to move back and forth.
[0029] In an embodiment of the present invention, reference is made to... Figure 2 As shown, there are multiple movable slide rails 14, which are linearly and equidistantly installed at the bottom of the movable plate 10.
[0030] It should be noted that by setting multiple sliding rails 14, the force on the moving plate 10 can be made uniform through the combined action of the multiple sliding rails 14, thereby improving the stability of the moving plate 10 moving back and forth under the drive of the sliding rails 14.
[0031] In an embodiment of the present invention, reference is made to... Figure 2 , Figure 3 As shown, the bottom ends of the movable plate 10 are respectively connected to the top of the first protective plate 17 and the second protective plate 18. The first protective plate 17 and the second protective plate 18 are respectively slidably connected to the first protective groove 15 and the second protective groove 16. The first protective groove 15 and the second protective groove 16 are respectively provided at both ends of the top of the support base 1.
[0032] It should be noted that by setting the first protective plate 17 and the second protective plate 18, in conjunction with the moving plate 10, a protective area can be formed on the outside of the slider of the moving slide rail 14 to prevent foreign objects from entering and causing damage to the moving slide rail 14, affecting subsequent use. In addition, the stability of the moving plate 10 moving back and forth can be improved by the limiting and guiding of the first protective groove 15 and the second protective groove 16.
[0033] In an embodiment of the present invention, reference is made to... Figure 5 As shown, the processing device has a network module installed inside, which is connected to the Internet via a network cable or a wireless network.
[0034] It should be noted that by setting up the network module, it can be connected to the Internet to send batch modification information, and the database can be automatically updated through the network module, improving the database's applicability.
[0035] In an embodiment of the present invention, reference is made to... Figure 5 As shown, the display screen is a controllable LCD screen.
[0036] It should be noted that by using a controllable LCD screen, the device can be controlled while displaying information, thus improving the functionality of the display.
[0037] In an embodiment of the present invention, reference is made to... Figure 2 As shown, a protective frame 12 is installed on the top edge of the placement plate 11, and an identification line is drawn on the top of the protective frame 12.
[0038] It should be noted that by setting up the protective frame 12, after the text is placed on the placement plate 11, it prevents the wind generated during the movement from blowing the test paper and affecting the subsequent shooting operation. In addition, the recognition line is used to remind the camera 8 to start and end the shooting.
[0039] The working principle of the student creative answer scoring device based on OCR and a large language model provided by this invention is as follows:
[0040] In use, the test paper to be approved can be placed on the loading plate 6, and the test paper is attracted by the suction holes 19 on the suction plate. Driven by the horizontal slide rail 20, the suction plate 3 is moved to move the test paper above the placement plate 11. Then, the suction plate 3 is lowered by the lifting cylinder 4 and the test paper is placed in it. Then, driven by the adjustment mechanism, the placement plate 11 is moved along the top of the support base 1 to the bottom of the camera 8. The camera 8 takes a picture of the test paper and uploads the image information to the image recognition program. The image recognition program converts the image into processable digital information, and the natural language processing program processes the digital information and adds annotations based on its understanding of the text and the database. This provides a fairer, more comprehensive and accurate scoring result, effectively solving the problem that the traditional scoring method relies on teachers to manually read and evaluate each student's work, which consumes a lot of time and energy and may lead to subjectivity and inconsistency in scoring.
[0041] The circuits and controls involved in this invention are all existing technologies and will not be described in detail here.
[0042] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.
Claims
1. A student creative answer scoring device based on OCR and a large language model, characterized in that, include: Support base (1), the top of the support base (1) is connected to the placement plate (11) through an adjustment mechanism, a camera (8) is provided above the placement plate (11), the camera (8) is connected to the top of the support base (1) through an L-shaped connecting plate (9), the camera (8) is connected to the connection port of a processing device with a display screen through an electrical connection, the processing device is equipped with an image recognition program, a natural language processing program and a database, an adsorption plate (3) is provided above the placement plate (11), an adsorption hole (19) is provided at the bottom of the adsorption plate (3), an adsorption pump (5) is provided at the top of the adsorption hole (19), the top of the adsorption plate (3) is connected to the telescopic end of the lifting cylinder (4), the top of the lifting cylinder (4) is connected to the horizontal slide rail (20) through a slider, the bottom of the horizontal slide rail (20) is connected to the top of the support base (1) through a slide rail frame (2), and the top of the support base (1) on both sides of the placement plate (11) is provided with a feeding plate (6) and a discharging plate (7) respectively.
2. The student creative answer scoring device based on OCR and a large language model according to claim 1, characterized in that, The adjustment mechanism includes a movable plate (10), the bottom of which is connected to a movable slide rail (14) via a slider. The bottom of the movable slide rail (14) is fitted with the interior of a slide rail groove (13), which is located on the top of the support base (1).
3. The student creative answer scoring device based on OCR and a large language model according to claim 2, characterized in that, The number of the movable slide rails (14) is multiple, and the movable slide rails (14) are linearly and equidistantly installed at the bottom of the movable plate (10).
4. The student creative answer scoring device based on OCR and a large language model according to claim 3, characterized in that, The bottom ends of the movable plate (10) are respectively connected to the top of the first protective plate (17) and the second protective plate (18). The first protective plate (17) and the second protective plate (18) are respectively slidably connected to the first protective groove (15) and the second protective groove (16). The first protective groove (15) and the second protective groove (16) are respectively set at the top ends of the support base (1).
5. The student creative answer scoring device based on OCR and a large language model according to claim 1, characterized in that, The processing device has a network module installed inside, which is connected to the Internet via a network cable or a wireless network.
6. The student creative answer scoring device based on OCR and a large language model according to claim 1, characterized in that, The display screen is a controllable LCD screen.
7. The student creative answer scoring device based on OCR and a large language model according to claim 1, characterized in that, The top edge of the placement plate (11) is fitted with a protective frame (12), and an identification line is drawn on the top of the protective frame (12).