CN111709499A - Test paper scoring system and method based on random two-dimensional code - Google Patents
Test paper scoring system and method based on random two-dimensional code Download PDFInfo
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Abstract
The invention discloses a test paper scoring system and a test paper scoring method based on a random two-dimensional code, wherein the system comprises a camera, a computer and an answer sheet file with the two-dimensional code, and the two-dimensional code is generated according to a question number, score information and a random number; the camera is connected with the computer through a data line and used for collecting and identifying the two-dimensional codes on the answer sheet files, and the computer is used for analyzing the two-dimensional codes and carrying out subsequent processing on the acquired data. The subjective questions are scored by using the two-dimension codes on the answer sheet, and score information corresponding to the two-dimension codes is identified by combining a camera and a computer, so that the scores of the subjective questions are quickly and accurately counted; and the random number is corresponding to the two-dimension code, so that the same two-dimension code can be prevented from being scanned for multiple times, and the accuracy of the score is ensured.
Description
Technical Field
The invention belongs to the field of data processing, and relates to a test paper scoring system and method based on random two-dimensional codes.
Background
At present, due to the fact that software and hardware levels of various institutions in China are different, the examination scoring system is also greatly different. Generally scoring systems fall into two categories: manual statistics and machine statistics. The machine can quickly scan the answer area of the answer sheet, judge the right and wrong and record the answer sheet into the system after the calculation is completed. The system greatly improves scoring efficiency, but has certain disadvantages, the answer sheet scanning scoring system has higher requirement on a scanned target, the possibility that the scanned target is changed due to the influence of external factors is higher, overprinting of paper used for the answer sheet and cutting precision of a reference edge are required to be higher, fibers are required to be long, the paper is uniform in thickness, good in stiffness, high in sizing degree, good in smoothness, uniform in expansion and contraction, and small in expansion and contraction. For example: if the back of the answer sheet of the previous person is stained with liquid, the next answer sheet is influenced to a certain extent. In addition, the system is applied to a simple Optical Character Recognition (OCR) technology, and the cursor is only sensitive to black, so that other color handwriting on the test paper has no influence on scanning. The working principle of the system is that the coincidence rate of the image generated by the comparison scanner scanning answer sheet and the prestored image is correct or wrong, which is similar to binary rules '0' and '1' in computer language. Under the influence of binary principle, the answer sheet scanning scoring system is only suitable for selecting question classes. If the answer sheet scanning system is applied to the subjective question part, not only the judgment error is caused, but also a series of problems such as large score judgment error and the like are caused. In addition to the problem of misjudgment, the scores of the systematic stages and the corresponding problems of the answerers are also of great importance, and if the scores and the answerers do not correspond or the scores are in wrong statistics, great potential hazards are brought to the issuing of the scores and a series of subsequent operations.
Disclosure of Invention
The invention aims to: the test paper scoring system and method based on the random two-dimensional codes can improve accuracy and efficiency of score entry.
The technical scheme of the invention is as follows:
in a first aspect, a test paper scoring system based on a random two-dimensional code includes: the answer sheet file comprises a camera, a computer and an answer sheet file with a two-dimensional code, wherein the two-dimensional code is generated according to a question number, score information and a random number;
the camera with the computer passes through the data line connection, the camera is used for gathering discernment the two-dimensional code on the answer book file, the computer is used for resolving the two-dimensional code to carry out subsequent processing to the data that acquire.
The further technical scheme is as follows: the two-dimensional code is printed into a two-dimensional code sticker after being generated by a two-dimensional code generator according to the question number, the score information and the random number, and a two-dimensional code image, the question number and the score information are displayed on the two-dimensional code sticker.
The further technical scheme is as follows: the two-dimensional code sticker comprises different score information specifications, the two-dimensional code sticker is used for being pasted at a corresponding deduction item position when the paper is read, and each deduction item corresponds to at least one two-dimensional code sticker.
In a second aspect, a test paper scoring method based on a random two-dimensional code is applied to the test paper scoring system based on a random two-dimensional code according to the first aspect, and the test paper scoring method includes:
receiving input identity information of the answerer and verifying the identity information;
after the verification is passed, activating the camera to start scanning work;
acquiring image information acquired by a camera, and analyzing a two-dimensional code in an image through a computer to obtain a corresponding question number, score information and a random number;
sequentially recording the analyzed question number, the fraction information and the random number, judging whether the recorded data are repeated according to the analyzed random number, if so, ignoring, otherwise, continuously analyzing the record until all the two-dimensional codes in the image are analyzed;
and calculating the score of each question according to the recorded data, counting the total score, and associating the total score with the identity information of the answerers.
The further technical scheme is as follows: the receiving and verifying of the input identification information of the answerer comprises the following steps:
pre-storing an answerer database in the system;
when receiving the input identity information of the answerer, matching the input identity information of the answerer with the data in the answerer database;
if the corresponding identity information is matched in the answerer database, the authentication is passed, otherwise, error information is displayed.
The further technical scheme is as follows: the identity information of the answerer at least comprises a school number.
The further technical scheme is as follows: the activating the camera to start scanning work comprises the following steps:
when a first appointed key on the keyboard is pressed, activating a camera to start scanning work;
after the score of each question is calculated according to the recorded data and the total score is counted and associated with the identity information of the answerers, the method further comprises the following steps:
and when a second designated key on the keyboard is pressed, controlling the camera to enter a sleep state.
The further technical scheme is as follows: the method for judging whether the recorded data are repeated according to the analyzed random number, if so, ignoring the data, otherwise, continuously analyzing the record until all the two-dimensional codes in the image are analyzed, and comprises the following steps:
matching the current analyzed random number with the recorded random number in the system;
if the same random number appears, determining that the current data is the repeated data and ignoring the repeated data;
if the same random number does not appear, recording the currently analyzed question number, score information and the random number into the system;
and continuously analyzing the next two-dimensional code until all the two-dimensional codes in the image are analyzed.
The further technical scheme is as follows: after obtaining the image information that the camera gathered, still include:
judging whether the image contains the two-dimensional code;
if the two-dimension codes are contained, the two-dimension codes are sequentially analyzed;
and if the two-dimensional code is not contained, displaying prompt information.
The invention has the advantages that:
1. the subjective questions are scored by using the two-dimension codes on the answer sheet, and score information corresponding to the two-dimension codes is identified by combining a camera and a computer, so that the scores of the subjective questions are quickly and accurately counted; the random number and the two-dimensional code are corresponding, so that the same two-dimensional code can be prevented from being scanned for multiple times, and the accuracy of scoring is ensured;
2. the scanning operation is started after the camera is activated through the appointed key, so that the interference information can be prevented from being scanned.
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The invention is further described with reference to the following figures and examples:
FIG. 1 is a schematic diagram of a test paper scoring system based on random two-dimensional codes according to an embodiment of the present application;
fig. 2 is a flowchart of a test paper scoring method based on a random two-dimensional code according to an embodiment of the present application.
Detailed Description
Example (b): the application provides a test paper scoring system based on random two-dimensional codes, as shown in fig. 1, the system may include: the system comprises a camera 1, a computer 2 and an answer sheet file 3 with a two-dimensional code, wherein the two-dimensional code is generated according to a question number, score information and a random number.
Camera 1 is connected through data line 4 with computer 2, and camera 1 is used for gathering the two-dimensional code on the identification answer book file 3, and computer 2 is used for resolving the two-dimensional code to carry out subsequent processing to the data that acquire.
In practical application, the two-dimensional code is generated by the two-dimensional code generator according to the question number, the score information and the random number and then printed into the two-dimensional code sticker, and the two-dimensional code image, the question number and the score information are displayed on the two-dimensional code sticker.
The question number, the score information and the random number can be stored as text information through the two-dimensional code generator.
Optionally, the score information may be point deduction information or point adding information.
Besides displaying the two-dimensional code image, question numbers and score information are displayed on the two-dimensional code sticker, so that a teacher can conveniently identify the paper when reading the paper and visually select the required two-dimensional code sticker.
Optionally, the two-dimensional code sticker includes different score information specifications, the two-dimensional code sticker is used for being pasted at a corresponding point item position during paper marking, and each point item corresponds to at least one two-dimensional code sticker.
In practical application, two-dimensional code stickers with different specifications are printed in advance, and by taking the deduction information as an example, deduction information with common specifications, such as-1, -2, -5, -10, -20 and the like, can be prepared, in the process of marking by a teacher, one or more two-dimensional code stickers can be selected to be pasted at a scoring position according to actual deduction items, and the sum of the deductions of the two-dimensional code stickers is equal to the actual deduction items.
The two-dimensional code sticker one surface can comprise a plurality of two-dimensional codes with the same specification or different specifications, and a plurality of two-dimensional code stickers corresponding to common fraction information can be prepared.
This application does not have too high requirement to camera 1, and common camera can satisfy the demand on the market, and the use of the random two-dimensional code that relates is free, and the cost of printing the two-dimensional code is lower, need not anxious extra too much expense of production, can save a large amount of time costs simultaneously.
With reference to fig. 2, the present application further provides a test paper scoring method based on a random two-dimensional code, which is applied to the test paper scoring system based on a random two-dimensional code shown in fig. 1, and the test paper scoring method includes the following steps:
firstly, receiving input identity information of an answerer and verifying the identity information.
Wherein, the verification process may include: pre-storing an answerer database in the system; when receiving the input identity information of the answerer, matching the input identity information of the answerer with the data in the answerer database; if the corresponding identity information is matched in the answering person database, the authentication is passed, otherwise, error information is displayed.
Optionally, the identity information of the answerer at least comprises a school number.
If the scheme is applied to other fields, the corresponding answerer database can be adjusted according to the use requirement.
In order to avoid the problem that the scores are not corresponding to the answering persons, the number information of the answering persons is input before the scanning is started, the system screens whether the answering persons exist or not, if yes, the scanning is started, and if not, the system prompts to check the number.
And secondly, activating the camera to start scanning after the verification is passed.
In practical application, the action of activating the camera is actively completed by a person, and when a first designated key on the keyboard is pressed, the camera is activated to start scanning work.
And thirdly, acquiring image information acquired by the camera, and analyzing the two-dimensional code in the image through a computer to obtain corresponding question numbers, score information and random numbers.
After the image information acquired by the camera is acquired, preliminary judgment can be carried out to judge whether the image contains the two-dimensional code; if the two-dimension codes are contained, the two-dimension codes are sequentially analyzed; and if the two-dimensional code is not contained, displaying prompt information.
And fourthly, recording the analyzed question numbers, the fraction information and the random numbers in sequence, judging whether the recorded data are repeated according to the analyzed random numbers, if so, ignoring, otherwise, continuously analyzing the record until all the two-dimensional codes in the image are analyzed completely.
In practical application, the image that the camera scanned at every turn may contain a two-dimensional code, also may contain a plurality of two-dimensional codes, if the camera scans the whole page of answer book for an image, then the computer is automatic discerned the two-dimensional code in the image, if the camera only scans the partial region of answer book, then the operator manually removes the answer book for the camera can discern the two-dimensional code in different regions in proper order.
Judging whether the recorded data is repeated according to the parsed random number may include: matching the current analyzed random number with the recorded random number in the system; if the same random number appears, determining that the current data is the repeated data and ignoring the repeated data; if the same random number does not appear, recording the currently analyzed question number, score information and the random number into the system; and continuously analyzing the next two-dimensional code until all the two-dimensional codes in the image are analyzed.
And fifthly, calculating the score of each question according to the recorded data, counting the total score, and associating the total score with the identity information of the answerers.
The method comprises the steps of firstly inputting answer sheet information through a camera, identifying a two-dimensional code in an image according to computer vision related content, reading score information stored in the two-dimensional code and corresponding to a corresponding question number, calculating the score condition of each question according to the question number after scanning is finished, and calculating the final total score.
Optionally, the action of activating the camera corresponds to the above, after the scanning statistics is finished, the camera is controlled to be closed by an operator, and when a second designated key on the keyboard is pressed, the camera is controlled to enter a sleep state.
In summary, according to the test paper scoring system and method based on the random two-dimensional code, the subjective questions are scored by using the two-dimensional code on the answer sheet, and the score information corresponding to the two-dimensional code is identified by combining the camera and the computer, so that the scores of the subjective questions are rapidly and accurately counted; and the random number is corresponding to the two-dimension code, so that the same two-dimension code can be prevented from being scanned for multiple times, and the accuracy of the score is ensured.
In addition, the scanning operation is started after the camera is activated by the appointed key, so that the interference information can be prevented from being scanned.
The terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying a number of the indicated technical features. Thus, a defined feature of "first", "second", may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk, an optical disk, or the like.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (9)
1. A test paper scoring system based on random two-dimensional codes is characterized by comprising: the answer sheet file comprises a camera, a computer and an answer sheet file with a two-dimensional code, wherein the two-dimensional code is generated according to a question number, score information and a random number;
the camera with the computer passes through the data line connection, the camera is used for gathering discernment the two-dimensional code on the answer book file, the computer is used for resolving the two-dimensional code to carry out subsequent processing to the data that acquire.
2. The test paper scoring system based on the random two-dimensional code according to claim 1, wherein the two-dimensional code is generated by a two-dimensional code generator according to the question number, the score information and the random number and then printed into a two-dimensional code sticker, and a two-dimensional code image, the question number and the score information are displayed on the two-dimensional code sticker.
3. The test paper scoring system based on the random two-dimensional code as claimed in claim 2, wherein the two-dimensional code sticker comprises different score information specifications, the two-dimensional code sticker is used for being pasted at a corresponding position of a mark deducting item during paper marking, and each mark deducting item corresponds to at least one two-dimensional code sticker.
4. A test paper scoring method based on random two-dimensional codes is applied to the test paper scoring system based on random two-dimensional codes according to any one of claims 1 to 3, and comprises the following steps:
receiving input identity information of the answerer and verifying the identity information;
after the verification is passed, activating the camera to start scanning work;
acquiring image information acquired by a camera, and analyzing a two-dimensional code in an image through a computer to obtain a corresponding question number, score information and a random number;
sequentially recording the analyzed question number, the fraction information and the random number, judging whether the recorded data are repeated according to the analyzed random number, if so, ignoring, otherwise, continuously analyzing the record until all the two-dimensional codes in the image are analyzed;
and calculating the score of each question according to the recorded data, counting the total score, and associating the total score with the identity information of the answerers.
5. The test paper scoring method based on the random two-dimensional code as claimed in claim 4, wherein the receiving and verifying the input identification information of the answerer comprises:
pre-storing an answerer database in the system;
when receiving the input identity information of the answerer, matching the input identity information of the answerer with the data in the answerer database;
if the corresponding identity information is matched in the answerer database, the authentication is passed, otherwise, error information is displayed.
6. The test paper scoring method based on the random two-dimensional code as claimed in claim 5, wherein the identification information of the answerer at least comprises a scholarly number.
7. The test paper scoring method based on the random two-dimensional code as claimed in claim 4, wherein the activating the camera to start scanning comprises:
when a first appointed key on the keyboard is pressed, activating a camera to start scanning work;
after the score of each question is calculated according to the recorded data and the total score is counted and associated with the identity information of the answerers, the method further comprises the following steps:
and when a second designated key on the keyboard is pressed, controlling the camera to enter a sleep state.
8. The test paper scoring method based on the random two-dimensional code according to claim 4, wherein the step of judging whether the recorded data is repeated according to the analyzed random number, if so, ignoring the data, and if not, continuously analyzing the record until all the two-dimensional codes in the image are analyzed, comprises the steps of:
matching the current analyzed random number with the recorded random number in the system;
if the same random number appears, determining that the current data is the repeated data and ignoring the repeated data;
if the same random number does not appear, recording the currently analyzed question number, score information and the random number into the system;
and continuously analyzing the next two-dimensional code until all the two-dimensional codes in the image are analyzed.
9. The test paper scoring method based on the random two-dimensional code as claimed in claim 4, wherein after the image information collected by the camera is obtained, the method further comprises:
judging whether the image contains the two-dimensional code;
if the two-dimension codes are contained, the two-dimension codes are sequentially analyzed;
and if the two-dimensional code is not contained, displaying prompt information.
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