Description:FIELD OF THE INVENTION

[0001] The present invention relates to a test paper evaluation system capable of efficiently evaluating test papers with minimized human error and consistent results, while securely authenticating the identity of the evaluating teacher to ensure reliable assessment.

BACKGROUND OF THE INVENTION

[0002] Test paper evaluation is essential to measure and understand a student’s learning progress, knowledge, and skills accurately. It provides a structured way to assess how well the educational objectives have been met and highlights areas where students may need additional support or improvement. Evaluation helps educators identify strengths and weaknesses, enabling them to tailor their teaching methods and materials to better suit student needs. Furthermore, it promotes accountability by ensuring that students are meeting academic standards. Through timely and fair evaluation, students receive constructive feedback that motivates learning and boosts confidence. Additionally, test paper evaluation aids in maintaining consistency and fairness in grading, which is crucial for academic credibility.

[0003] Traditional methods involve manual grading by teachers or examiners, where answers are checked and marks are assigned based on predetermined criteria. While this approach allows for subjective judgment and detailed feedback, it is time-consuming, especially with large numbers of students. Manual evaluation is also prone to human errors such as miscalculation, bias, or inconsistency in marking, which can affect fairness and accuracy. Additionally, it delays the feedback process, reducing opportunities for timely intervention and improvement. Traditional methods often lack standardization, leading to variability in scores across different evaluators. They also make it difficult to analyze large datasets for insights on student performance or curriculum effectiveness.

[0004] CN118115330A relates to an AI-based real time examination paper marking and evaluation system, and the system comprises a venation generation module which is used for generating a to-be-tested knowledge point venation network; the test paper generation module is used for generating personalized test paper of each to-be-tested student based on the to-be-tested knowledge point venation network and the historical weak knowledge points in the historical test records of each to-be-tested student; the answer sheet receiving module is used for sending personalized test paper and receiving real-time answer sheet content; the real-time paper marking module is used for carrying out real-time paper marking on the real-time answer sheet contents of all the to-be-tested students of the current examination task to obtain a real-time paper marking result of the current examination task; the paper marking evaluation module is used for determining new weak knowledge points in the to-be-tested knowledge venation network based on the real-time paper marking result, and generating a paper marking evaluation result based on the new weak knowledge points; the method and the device are used for realizing automatic paper marking and realizing evaluation and analysis of knowledge point mastering conditions of students based on paper marking results.

[0005] CN101995972A relates to a positioning device for checking examination papers, which comprises a positioning plate body and an examination paper pen body. When personnel for checking examination papers adopt an electronic pen nib of the examination paper checking pen body to touch examination papers placed on the positioning plate body, a positioning unit of the positioning plate body generates relative positioning information, and after a relatively matched electronic examination paper checking system for tracking the manual examination paper checking in real time receives the positioning information, a positioning module of the electronic examination paper checking system calculates relative position information of the positioning information on the examination papers imported by an import module and judges whether relative positions on the electronic examination papers are provided with scoring frames by using a judging module, if so, then scoring values of the scoring frames are overlaid on the electronic examination papers by using an overlying module, and finally the total score of one examination paper is calculated by a statistic module according to the overlaid scoring values, the electronic examination papers overlaid with the scoring values and the total scores are preserved by a memory module and a teaching database containing answer statuses is generated by a generating module so as to realize the real-time tracking on the manual examination paper checking.

[0006] Conventionally, many systems are available in the market that helps the user in evaluating test paper. However, these existing systems mentioned in the prior arts lack in authenticating the identity of the teacher evaluating a test paper, ensuring secure and reliable assessment. In addition, these existing systems also fail in highlighting incorrect spellings in the test papers to enhance the evaluation process by automatically detecting spelling errors.

[0007] In order to overcome the aforementioned drawbacks, there exists a need in the art to develop a system that requires to be capable of evaluating test paper to minimize human error, and provide faster and consistent assessment of student performance. In addition, the developed system also needs to be capable of highlighting incorrect spellings in the test papers to enhance the evaluation process by automatically detecting spelling errors, thus improving grading consistency and reducing manual effort.

OBJECTS OF THE INVENTION

[0008] The principal object of the present invention is to overcome the disadvantages of the prior art.

[0009] An object of the present invention is to develop a system that is capable of evaluating test paper to minimize human error, and provide faster and consistent assessment of student performance.

[0010] Another object of the present invention is to develop a system capable of authenticating the identity of the teacher evaluating a test paper, ensuring secure and reliable assessment.

[0011] Yet another object of the present invention is to develop a system capable of highlighting incorrect spellings in the test papers to enhance the evaluation process by automatically detecting spelling errors, thus improving grading consistency and reducing manual effort.

[0012] The foregoing and other objects, features, and advantages of the present invention will become readily apparent upon further review of the following detailed description of the preferred embodiment as illustrated in the accompanying drawings.

SUMMARY OF THE INVENTION

[0013] The present invention relates to a test paper evaluation system capable of authenticating the identity of the teacher evaluating the test paper to ensure secure assessment, and capable of automatically highlighting spelling errors to improve grading consistency and reduce manual effort.

[0014] According to an embodiment of the present invention, a test paper evaluation system, comprising a pen installed with fingerprint sensor to authenticate the identity of a teacher evaluating a test paper, an AI Camera in conjunction with an optical character recognition (OCR) sensor integrated with the pen to undertake evaluation of the test paper, a laser light is integrated with the pen through a motorized joint to highlight the incorrect spelling alerting the teacher to the error for correction, a hollow cylinder with an opening at its top is arranged inside a cuboidal housing to place the pen encompasses an inflating tube connected with an air inflator to ensure that the pen is securely held in place within the cylinder, a display unit is attached to the outer periphery of the cuboidal housing to display the total score.

[0015] According to another embodiment of the present invention, the system further comprises of a plurality of Wi-Fi modules embedded within the pen and the cuboidal housing to enables constant communication between the pen and the cuboidal housing, an imaging unit embedded within the cuboidal housing scans the teacher’s face to confirm their identity, an interface installed on a computing unit enables an authorized user to input answers of a question paper into the system allowing the system to map each answer to its corresponding question, a GPS module embedded within the cuboidal housing tracks the real-time location of the cuboidal housing to ensure it is used in a designated area, a first processing module integrated with the pen, a second processing module integrated with the cuboidal and a battery is associated with the system for supplying power to electrical and electronically operated components associated with the system.

[0016] While the invention has been described and shown with particular reference to the preferred embodiment, it will be apparent that variations might be possible that would fall within the scope of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

[0017] These and other features, aspects, and advantages of the present invention will become better understood with regard to the following description, appended claims, and accompanying drawings where:
Figure 1 illustrates an isometric view of a pen of test paper evaluation system; and
Figure 2 illustrates an isometric view of a cuboidal housing of the test paper evaluation system.

DETAILED DESCRIPTION OF THE INVENTION

[0018] The following description includes the preferred best mode of one embodiment of the present invention. It will be clear from this description of the invention that the invention is not limited to these illustrated embodiments but that the invention also includes a variety of modifications and embodiments thereto. Therefore, the present description should be seen as illustrative and not limiting. While the invention is susceptible to various modifications and alternative constructions, it should be understood, that there is no intention to limit the invention to the specific form disclosed, but, on the contrary, the invention is to cover all modifications, alternative constructions, and equivalents falling within the spirit and scope of the invention as defined in the claims.

[0019] In any embodiment described herein, the open-ended terms "comprising," "comprises,” and the like (which are synonymous with "including," "having” and "characterized by") may be replaced by the respective partially closed phrases "consisting essentially of," consists essentially of," and the like or the respective closed phrases "consisting of," "consists of, the like.

[0020] As used herein, the singular forms “a,” “an,” and “the” designate both the singular and the plural, unless expressly stated to designate the singular only.

[0021] The present invention relates to a test paper evaluation system capable of evaluating test papers to minimize human error and provide faster, consistent assessments, while automatically highlighting spelling mistakes to enhance grading accuracy and reduce manual effort.

[0022] Referring to Figure 1 and 2, an isometric view of a test paper evaluation system and an isometric view of a cuboidal housing of the test paper evaluation system are illustrated, respectively, comprises of a pen 101 installed with fingerprint sensor 102, an AI Camera 103 integrated with the pen 101, a laser light 104 is integrated with the pen 101, a hollow cylinder 201 is arranged inside a cuboidal housing 202, the hollow cylinder 201 encompasses an inflating tube 203 connected with an air inflator 204, a display unit 205 is attached to the outer periphery of the cuboidal housing 202 through a motorized ball and socket joint 206, an imaging unit 207 embedded within the cuboidal housing 202 and a speaker 208 is mounted on the cuboidal housing 202.

[0023] The system discloses herein includes a pen 101 installed with fingerprint sensor 102 to authenticate the identity of a teacher evaluating a test paper. The pen 101 is constructed from durable, lightweight materials such as high-grade plastic and metal alloys to ensure ergonomic handling and long-lasting use. The fingerprint sensor 102 specifically a capacitive sensor, which captures the unique ridge patterns of the teacher’s fingerprint. The capacitive sensor works by measuring electrical signals.

[0024] When the teacher grips the pen 101, the sensor contains an array of tiny capacitor circuits that detect differences in electrical charge caused by the ridges and valleys of the fingerprint. The ridges, which are closer to the sensor surface, alter the capacitance differently than the valleys, creating a detailed electrical map of the fingerprint pattern.

[0025] This electrical map is converted into digital data and transmitted to a first processing module, where it is processed and compared against pre-stored fingerprint templates in a secure database. If the scanned fingerprint data matches a registered identity, the first processing module authenticates the teacher, granting access to proceed with the evaluation of test papers.

[0026] An AI Camera 103 in conjunction with an optical character recognition (OCR) sensor integrated with the pen 101 enabling the system to undertake evaluation of the test paper. The AI Camera 103 comprises of an image capturing arrangement including a set of lenses that captures multiple images of the written content and the captured images are stored within memory of the camera in form of an optical data.

[0027] The AI Camera 103 also comprises of a processor that is integrated with artificial intelligence protocols, such that the processor processes the optical data and extracts the required data from the captured images. The extracted data is further converted into digital pulses and bits and are further transmitted to the first processing module.

[0028] By analyzing the data, the pen 101 interprets the written answers for word count, error detection, and evaluation based on predefined criteria. Additionally, the AI Camera 103 is programmed to detect spelling errors by comparing recognized words against a dictionary database, thereby assisting in highlighting mistakes as the teacher evaluates the paper. While the teacher assigns marks to each answer, the AI Camera 103 continuously tracks these scores.

[0029] The OCR sensor works by segmenting the scanned image into individual characters or words. Once the handwritten text is converted into digital form, the OCR sensor counts the number of words in each answer by identifying spaces and delimiters between words. This accurate word count aids in evaluating answers that require a minimum or maximum word limit and supports overall assessment accuracy.

[0030] A laser light 104 is integrated with the pen 101 through a motorized joint to allow movement of the laser light 104, the laser light 104 highlights the incorrect spelling alerting the teacher of errors that requires correction. When the AI Camera 103 and OCR module identify the spelling error in a student's written response, the first processing module calculates the exact position of the misspelled word on the paper. This positional data is transmitted to the motorized joint, which adjusts the direction of the laser beam accordingly. The laser, typically emitting a visible red or green light, projects a focused beam directly onto the incorrect word, visually marking it for the teacher.

[0031] The motorized joint consists of small electric motors, such as servo motors or stepper motors, which convert electrical signals into rotational or angular motion. When the first processing module detects the location of an incorrect spelling on the test paper, it sends corresponding commands to the motorized joint’s controller. The motors then rotate or tilt the joint to adjust the laser’s angle and direction, aiming the laser beam exactly at the targeted word. The motorized joint move along one or more axes, allowing fine-tuned positioning in both horizontal and vertical directions.

[0032] In an embodiment of the present invention, a speaker 208 is incorporated to notify the teacher of errors that require correction. The speaker 208 used herein is capable of producing clear and natural sound and is capable of adjusting its volume based on ambient noise levels.

[0033] The speaker 208 consists of audio information, which is in the form of recorded voice, synthesized voice, or other sounds, generated or stored as digital data. The digital audio data is converted into analog electrical signals. Further the analog signal is amplified by an amplifier and the amplified electrical audio signal is then sent to a diaphragm, which is typically made of a lightweight and rigid material like paper, plastic, or metal, and is designed to vibrate or move back and forth when electrical signals are fed to it. This movement creates pressure variations in the surrounding air, generating sound waves in order to generate the audible sound for notifying the teacher of errors that require correction.

[0034] A hollow cylinder 201 with an opening at its top is arranged inside a cuboidal housing 202 to place the pen 101. The hollow cylinder 201 made of a durable, lightweight material such as high-grade plastic or aluminum alloy. These materials provide strength and stability while ensuring ease of manufacturing and resistance to wear and tear. The cuboidal housing 202 enclosing the hollow cylinder 201 is constructed from sturdy materials like ABS plastic or metal alloys, chosen for their robustness and ability to protect the internal components.

[0035] The hollow cylinder 201 encompasses an inflating tube 203 connected with an air inflator 204 to ensure that the pen 101 is securely held in place within the cylinder 201, the air inflator 204 inflates the tube creating a grip that prevents the pen 101 from slipping out. When the pen 101 is inserted into the cylinder 201, the air inflator 204 activates and pumps air into the inflatable tube surrounding the pen 101.

[0036] As the tube inflates, it expands outward, exerting gentle but firm pressure against the pen 101 surface. This inflation causes the tube to conform closely around the pen 101 shape, creating a snug grip that prevents any unwanted movement or slipping. The controlled air pressure inside the tube ensures that the grip is strong enough to hold the pen 101 securely, yet flexible enough to allow easy removal when necessary.

[0037] A display unit 205 is attached to the outer periphery of the cuboidal housing 202 through a motorized ball and socket joint 206. The motorized ball and socket joint 206 allows the display unit 205 to be adjustable enabling the teacher to view the display from various angles while evaluating the paper.

[0038] The display unit 205 consists of an LCD or OLED screen, made from layers of glass and organic compounds (in the case of OLED) or liquid crystals sandwiched between polarizing filters (in LCDs). These materials enable the screen to render clear, sharp images and text with good color accuracy and brightness. The display receives data from a second processing module, presenting information such as evaluation results, error notifications, and other relevant details.

[0039] The motorized ball and socket joint 206 is a mechanical connection where a spherical ball fits snugly inside a rounded socket, allowing rotational movement in multiple directions. The ball is attached to one component (like a display unit 205), and the socket is fixed to another (such as a housing 202), because the ball rotates freely within the socket, the joint enables movement along three axes — up and down (pitch), side to side (yaw), and rotation around the axis (roll). This provides a wide range of motion.

[0040] A small electric motor embedded within the joint assembly that control the movement of the ball relative to the socket. When the second processing module receives input signals these motors precisely rotate the ball, changing the orientation of the attached display unit 205. Additionally, the display unit 205 shows the total score upon completing of the evaluation and if the answer falls short of the word count requirement, the system alerts the teacher via the display unit 205 ensuring adherence to the test instructions.

[0041] A plurality of Wi-Fi modules embedded within the pen 101 and the cuboidal housing 202 to enables constant communication between the pen 101 and the cuboidal housing 202. The Wi-Fi module enables wireless communication by transmitting and receiving data over radio frequencies using IEEE 802.11 protocols. It connects to a network via an access point, converting digital data into radio signals. The module processes TCP/IP protocols for data exchange, interfaces with processing module through UART/SPI, and ensures encrypted communication using WPA/WPA2 security standards for secure and efficient wireless connectivity.

[0042] An imaging unit 207 embedded within the cuboidal housing 202 scans the teacher’s face to confirm their identity ensuring authorized individuals, such as teachers or professors, to undertake evaluation. The imaging unit 207 comprises of an image capturing arrangement including a set of lenses that captures multiple images of the teacher, and the captured images are stored within memory of the imaging unit 207 in form of an optical data.

[0043] The imaging unit 207 also comprises of a processor that is integrated with artificial intelligence protocols, such that the processor processes the optical data and extracts the required data from the captured images. The extracted data is further converted into digital pulses and bits and are further transmitted to the second processing module.

[0044] An interface installed on a computing unit enables an authorized user to input answers of a question paper into the system allowing the system to map each answer to its corresponding question, streamlining the evaluation process. The computing unit is accessed by the user for enabling the user to answers of a question paper. The user interacts with the interface through a touch screen, keyboard, or other input methods available on the computing unit. The computing unit mentioned herein includes, but not limited to smartphone, laptop, tablet.

[0045] A GPS module embedded within the cuboidal housing 202 tracks the real-time location of the cuboidal housing 202 to ensure it is used in a designated area by comparing its real-time location with an authorized database having locations inputted into the database from authorized personnel, if the system detects an unauthorized location, it sends an alert to the designated authority.

[0046] The GPS module functions by receiving signals from a network of satellites orbiting the Earth. These satellites continuously transmit precise time and location data, which the GPS receiver inside the module processes to calculate its exact geographical coordinates (latitude, longitude, and altitude). By continuously tracking its position in real time, the GPS module enables the system to monitor the location of the cuboidal housing 202. The recorded coordinates are then compared against the authorized database containing pre-approved locations provided by authorized personnel. If the module detects that the system is operating outside these designated areas, the system automatically sends an alert to the relevant authority, ensuring proper usage and security.

[0047] Also, if the pen 101 moves beyond the wireless range of the cuboidal housing 202, an alert is triggered notifying the authority of potential misuse or improper handling of the pen 101. This alert is transmitted through the wireless communication protocol, such as Wi-Fi, Bluetooth, or a cellular network.

[0048] Further, the system is configured to evaluate the marks assigned to each answer on the test paper. If it detects improper marking by the teacher based on answer guidelines provided by the authorized user through the interface—it generates the alert for the teacher. Additionally, the system compares marks awarded for the same answer across multiple answer sheets and notifies the evaluation authority if inconsistencies are found. This feature helps minimize human bias and ensures fairness and accuracy in the evaluation process.

[0049] Lastly, a battery is installed within the system which is connected to the microcontroller that supplies current to all the electrically powered components that needs an amount of electric power to perform their functions and operation in an efficient manner. The battery utilized here, is preferably a dry battery which is made up of Lithium-ion material that gives the system a long-lasting as well as an efficient DC (Direct Current) current which helps every component to function properly in an efficient manner. As the system is battery operated and do not need any electrical voltage for functioning. Hence the presence of battery leads to the portability of the system i.e., user is able to place as well as moves the system from one place to another as per the requirements.

[0050] The present invention works best in the following manner, where the pen 101 as disclosed in the invention is integrated with fingerprint sensor 102 captures unique ridge patterns by measuring electrical signals altered by fingerprint ridges and valleys, converting them into digital data for authentication against stored templates, ensuring only authorized teachers evaluate test papers. The pen 101 also incorporates AI Camera 103 with optical character recognition (OCR) sensor; AI Camera 103 captures multiple images of written content, processes optical data using artificial intelligence protocols to extract relevant information, while OCR sensor segments text into characters or words to count word totals accurately. Upon detecting spelling errors, system calculates position of error and directs laser light 104 through motorized joint to highlight mistakes for teacher’s correction. The speaker 208 provides audible alerts of errors.

[0051] In continuation, the pen 101 securely held within hollow cylinder 201 inside cuboidal housing 202 constructed from ABS plastic or metal alloys; inflating tube 203 with air inflator 204 expands to grip pen 101 securely. The display unit 205 attached via motorized ball and socket joint 206 allows adjustable viewing angles, showing evaluation results and alerts for word count compliance. The Wi-Fi modules maintain wireless communication between pen 101 and housing 202. The imaging unit 207 scans teacher’s face for identity verification. Additionally, the gps module tracks real-time location of housing 202, comparing with authorized database to prevent unauthorized use. The system detects improper marking and inconsistencies across multiple answer sheets, generating alerts to reduce human bias and ensure fair, accurate assessments.

[0052] Although the field of the invention has been described herein with limited reference to specific embodiments, this description is not meant to be construed in a limiting sense. Various modifications of the disclosed embodiments, as well as alternate embodiments of the invention, will become apparent to persons skilled in the art upon reference to the description of the invention. , Claims:1. A test paper evaluation system, comprising:

a. a pen 101, the pen 101 installed with fingerprint sensor 102 to authenticate the identity of a teacher evaluating a test paper;
b. an AI Camera 103 in conjunction with an optical character recognition (OCR) sensor integrated with the pen 101 enabling the system to undertake evaluation of the test paper;
c. a laser light 104 is integrated with the pen 101 through a motorized joint to allow movement of the laser light 104, the laser light 104 highlights the incorrect spelling, alerting the teacher to the error for correction;
d. a hollow cylinder 201 with an opening at its top is arranged inside a cuboidal housing 202 to place the pen 101;
e. a display unit 205 is attached to the outer periphery of the cuboidal housing 202;
f. a plurality of Wi-Fi modules embedded within the pen 101 and the cuboidal housing 202 to enables constant communication between the pen 101 and the cuboidal housing 202;
g. an imaging unit 207 embedded within the cuboidal housing 202;
h. an interface installed on a computing unit;
i. a GPS module embedded within the cuboidal housing 202;
j. a first processing module integrated with the pen 101; and
k. a second processing module integrated with the cuboidal housing 202.

2. The test paper evaluation system as claimed in claim 1, wherein the AI Camera 103 scans the content on the test paper, enabling the pen 101 to interpret the written answers for word count, error detection, and evaluation based on predefined criteria, the camera is also configured to check for spelling errors in the written content and as the teacher evaluates the test paper, the camera tracks the marks assigned to each answer, upon completing of the evaluation, the system aggregates the marks and displays the total score on the display unit 205.

3. The test paper evaluation system as claimed in claim 1, wherein the OCR sensor scans the written content and counts the number of words in the answer, if the answer falls short of the word count requirement, the system alerts the teacher via the display unit 205, ensuring adherence to the test instructions.

4. The test paper evaluation system as claimed in claim 1, wherein if the pen 101 moves beyond the wireless range of the cuboidal housing 202, an alert is triggered, notifying the authority of potential misuse or improper handling of the pen 101.

5. The test paper evaluation system as claimed in claim 1, wherein the hollow cylinder 201 encompasses an inflating tube 203 connected with an air inflator 204 to ensure that the pen 101 is securely held in place within the cylinder 201, the air inflator 204 inflates the tube, creating a grip that prevents the pen 101 from slipping out.

6. The test paper evaluation system as claimed in claim 1, wherein the display unit 205 is attached to the outer periphery of the cuboidal housing 202 through a motorized ball and socket joint 206, the motorized ball and socket joint 206 allows the display unit 205 to be adjustable enabling the teacher to view the display from various angles while evaluating the paper.

7. The test paper evaluation system as claimed in claim 1, wherein the imaging unit 207 embedded within the cuboidal housing 202, scans the teacher’s face to confirm their identity ensuring authorized individuals, such as teachers or professors, to undertake evaluation.

8. The test paper evaluation system as claimed in claim 1, wherein the interface enables an authorized user to input answers of a question paper into the system allowing the system to map each answer to its corresponding question, streamlining the evaluation process.

9. The test paper evaluation system as claimed in claim 1, wherein the GPS module tracks the real-time location of the cuboidal housing 202 to ensure it is used in a designated area by comparing its real-time location with an authorized database having locations inputted into the database from authorized personnel, if the system detects an unauthorized location, it sends an alert to the designated authority.

10. The test paper evaluation system as claimed in claim 1, wherein the system is configured to determine marks given to answer of each question of the test paper based and if the system detects that improper marking is undertaken by the teacher based on answers provided by the authorized user through the interface, the system generates an alert for the teacher, the system is also configured to determine marks given to same answer across multiple answer sheets and generate an alert to the evaluation authority about the identified situation to reduce human bias in the evaluation process.