CN112053264A - Method and device for collecting examination answer information and examination system based on intelligent pen - Google Patents

Abstract

The invention provides an examination system based on an intelligent pen, which comprises a server and at least one intelligent pen, wherein the intelligent pen is used for detecting writing operation on a first writing medium printed with a first code array and acquiring a unique examinee identifier contained in the first code array as an intelligent pen identifier; the intelligent pen is also used for detecting the writing operation on a second writing medium printed with a second code array, and acquiring writing track information corresponding to the writing operation on the second writing medium by identifying the second code array; the server is further used for obtaining an examinee account corresponding to the intelligent pen identifier, recognizing answer information contained in the writing track information and binding the answer information with the examinee account. The invention also correspondingly provides a method and a device for acquiring the answer information of the examination, and the intelligent pen examination system can acquire the answer information more efficiently and more accurately.

Description

Method and device for collecting test answer information and test system based on smart pen

technical field

The invention relates to the application field of smart pens, in particular to a method and a device for collecting test answering information and an examination system based on smart pens.

Background technique

The existing online scoring system still relies on the offline test scene, using paper media as the writing medium for answering information. In a typical offline examination online scoring scenario, candidates write their answers on paper answer sheets, the invigilator collects the paper answer sheets, and then manually scans the image and OCR technology on the paper answer sheets. The test admission ticket number and the answer content are identified, and the admission ticket number (the candidate account representing the candidate's identity) and the digitized answer content are bound to the database of the online scoring system.

However, this traditional method of inputting answer information is inefficient, and it is necessary to scan and OCR the paper answer sheets one by one, and it takes a lot of time to identify and switch the paper answer sheets. At the same time, this method of binding the admission ticket number and the answer content depends on the OCR identification of the test ticket number. If the candidate's handwriting is scribbled, it is easy to identify the admission ticket number or the content of the answer incorrectly, thus affecting the correct evaluation of the candidate's examination.

Therefore, the answering information collection method in the traditional offline examination online scoring scenario is inefficient and has a low accuracy rate.

SUMMARY OF THE INVENTION

In order to solve the above problems, the present invention provides a high-efficiency and high-accuracy examination system based on a smart pen.

A test system based on a smart pen, comprising a server and at least one smart pen, the server is used to generate a first code array corresponding to a unique candidate identification, at least one of the first code arrays is printed on the first writing on the medium;

The smart pen is used to detect the writing operation on the first writing medium printed with the first code array, and obtain the unique candidate identifier contained in the first code array as the smart pen identifier;

The smart pen is also used to detect the writing operation on the second writing medium printed with the second code array, and collect the writing track information corresponding to the writing operation on the second writing medium by identifying the second code array;

The smart pen is also used to bind the smart pen identifier and the writing track information and transmit it to the server;

The server is further configured to acquire the examinee account corresponding to the smart pen identifier, identify the answer information contained in the writing track information, and bind the answer information to the examinee account.

In one of the embodiments, the first code array expresses virtual coordinate information, the virtual coordinate information is the unique candidate identifier, and the virtual coordinate information is in one-to-one correspondence with the candidate account.

In one embodiment, the server is further configured to establish a random one-to-one correspondence between the first code array and the candidate's account, select at least one of the first code arrays to form a first code array combination, and the first code array A code array combination is printed on the same first writing medium.

In one embodiment, the writing track information includes a first writing track in the signature area of the second writing medium and a second writing track in the answering area of the second writing medium;

The server is further configured to identify the signature information included in the first writing track information, and identify the answer information included in the second writing track information;

The server is further configured to determine whether the signature information matches the candidate's account, and if not, unbinding the answer information and the candidate's account.

In one embodiment, the server is further configured to obtain signature information included in the first writing track information through optical character recognition, and the server is further configured to obtain the signature information included in the second writing track information through optical character recognition Answer information.

In one of the embodiments, the smart pen is configured to transmit the third writing track information corresponding to the writing operation on the first writing medium printed with the first code array to the server;

The server is further configured to obtain the signature information included in the third writing track information, and determine whether the signature information included in the third writing track information matches the candidate's account; The candidate account mentioned above will not be bound.

In one embodiment, the server is further configured to generate a video format answering record according to the writing track information.

In one embodiment, the smart pen is further configured to transmit the smart pen identifier and the writing track information offline to the server through wired communication or wireless near field communication after binding.

In addition, the present invention also provides a smart pen-based high-efficiency and high-accuracy method for collecting test answer information.

A method for collecting test answer information, comprising:

Detect the writing operation on the first writing medium printed with the first code array, obtain the unique examinee identification contained in the first code array as a smart pen identification, and generate the first code array corresponding to the unique examinee identification by the server. , and at least one of the first code arrays is printed on the first writing medium;

Detecting the writing operation on the second writing medium printed with the second code array, and collecting the writing track information corresponding to the writing operation on the second writing medium by identifying the second code array;

The smart pen identification and the writing track information are bound and transmitted to the server, and the server obtains the candidate account corresponding to the smart pen identification, identifies the answer information contained in the writing track information, and sends the answer to the question. The information is tied to the said candidate account.

In one embodiment, the step of binding the smart pen identifier and the writing track information to the server after binding is as follows:

The smart pen identifier and the writing track information are bound and transmitted offline to the server through wired communication or wireless near field communication.

In addition, the present invention also provides a smart pen-based device for collecting test answer information with high efficiency and high accuracy.

A device for collecting test answer information, comprising:

The identity binding module is used to detect the writing operation on the first writing medium printed with the first code array, obtain the unique candidate identifier contained in the first code array as the smart pen identifier, and generate the corresponding unique candidate identifier. The first code array is generated by the server, and at least one of the first code arrays is printed on the first writing medium;

a writing track acquisition module, configured to detect the writing operation on the second writing medium printed with the second code array, and collect the writing track information corresponding to the writing operation on the second writing medium by identifying the second code array;

The information input module is used to bind the smart pen identifier and the writing track information and transmit it to the server, and the server obtains the candidate account corresponding to the smart pen identifier, and identifies the answer information contained in the writing track information. , and bind the answer information to the candidate account.

After adopting the above-mentioned smart pen-based test system, method and device for collecting test answer information, on the one hand, the test taker only needs to sign in the designated signature area on the test room sign-in form to complete the binding of the smart pen and the reference candidate's identity, and The smart pen detects the candidate's writing trajectory in the exam to collect the answers, and then enters the server of the marking system. During the period, there is no need to manually read the exam papers, and the entry speed is faster. In the second aspect, because the smart pen collects answer information by identifying the code array printed on the test paper to obtain the timing position of the pen tip, it has less noise and higher accuracy than the scanning method in the traditional technology. Similarly, because the smart pen collects answers by identifying the code array printed on the test paper to obtain the timing position of the pen tip to collect answer information, even if candidates exchange test papers in the test room, the answers collected by the smart pen are still the answers written by the original test taker. It can effectively prevent some cheating behaviors and improve the fairness of the examination system.

Description of drawings

1 is a schematic diagram of a smart pen-based examination system in an embodiment of the application;

2 is a schematic diagram of a server allocating virtual space area coordinates as a unique examinee identifier in an embodiment of the present application;

3 is a flowchart of a method for collecting test answer information in an embodiment of the application;

FIG. 4 is a schematic structural diagram of an apparatus for collecting test answer information according to an embodiment of the application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of this application.

It should be noted that if there are directional indications (such as up, down, left, right, front, back, etc.) involved in the embodiments of the present application, the directional indications are only used to explain a certain posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly.

In addition, if there are descriptions related to "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for the purpose of description, and should not be construed as indicating or implying Its relative importance or implicitly indicates the number of technical features indicated. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of such technical solutions does not exist. , is not within the scope of protection claimed in this application.

In order to solve the aforementioned problems and improve the efficiency and accuracy of entering the answer information of the offline examination into the online marking system, the present invention provides a smart pen-based examination system, as shown in FIG. 1 , in which the examination system includes a server. 10 and at least one smart pen 20. The server can be the server of the marking system, or it can be a separate server device. The smart pen is an explicit or implicit code matrix (also called a dot map, a matrix map, a map matrix or a micro-array that can be photographed by an image sensor of the pen tip and printed at the relative position of the pen tip on the writing medium during writing). Map array) to collect the smart device of the writing track. The applicable scenarios of the examination system include two parts: offline examination and online marking. In the offline examination, each candidate will be temporarily assigned a smart pen when he signs in the examination room. Answering, the smart pen is used to collect the writing track when answering, the writing track expresses the answering information and is stored in the smart pen. At the end of the test, the invigilators collect smart pens and enter the answer information into the server of the online marking system for archival storage, and on the other hand, collect the paper test papers with the answers written by the candidates for physical filing, which is convenient for verification.

Specifically, in this examination system:

The server 10 is configured to generate a first code array corresponding to the unique candidate identification, and at least one first code array is printed on the first writing medium.

The smart pen 20 is used to detect the writing operation on the first writing medium printed with the first code array, and obtain the unique examinee identifier contained in the first code array as the smart pen identifier.

In this embodiment, the first writing medium is an examination room sign-in form. When entering the test room, candidates need to sign in to confirm the test taker's presence and receive the smart pen for the test. At this time, it is necessary to bind the candidate's identity to the smart pen, so that when the candidate uses the smart pen to answer, the smart pen can ensure that the recorded answer information is answered by the candidate.

As shown in Figure 2, the check-in form in the examination room includes multiple check-in boxes, each check-in box corresponds to a candidate, and the prompt words indicating the check-in position of the candidates are printed. For example, the sign-in box to the right of the prompt "Candidate A's signature" is the place where Candidate A needs to sign when signing in, and the sign-in box to the right of the prompt "Candidate B's signature" is the sign that Candidate B needs to sign when signing in. place. Candidate A's check-in box and candidate B's check-in box are printed with different first code arrays, expressing different information. The different information is the unique candidate ID, which corresponds to the candidate's account number such as the admission ticket number. When Candidate A uses the smart pen to sign in Candidate A's check-in box, the information expressed by the first code array printed in Candidate A's check-in box where the pen tip is detected by the smart pen during the signing process is Candidate A's only candidate. Mark, when candidate B uses the smart pen to sign in the check-in box of candidate B, the information expressed by the first code array printed in the check-in box area of candidate B where the pen tip is detected by the smart pen during the signing process is the information expressed by candidate B. Unique Candidate ID.

Preferably, the first code array expresses virtual coordinate information, the virtual coordinate information is the unique candidate identifier, and the virtual coordinate information is in one-to-one correspondence with the candidate account.

The coordinate information expressed in the different first code arrays printed on the check-in grids of the candidate A and the candidate B is the coordinate information in the virtual space. That is to say, the first code array in each signature grid on the examination room sign-in form does not express the relative position coordinates of the first code array on the examination room sign-in form, but expresses the coordinates of the virtual space.

As shown in Figure 2, the server can pre-build a virtual space RC coordinate system, and divide the RC coordinate into multiple areas, each area generates a first code array according to the relative position, and each area corresponds to a unique examinee ID. For example, if candidate A is assigned to the corresponding virtual space area R1C0R2C1, that is, a rectangular area formed by vertices (R1, C0) and vertices (R2, C1), the server generates a code matrix in advance according to each coordinate in the RC coordinate system of the virtual space , that is, the position information encoded by the graphic code in the code array corresponds to its relative position in the virtual space RC coordinate. Then, intercept the area R1C0R2C1 in the RC coordinate system of the virtual space as the first code matrix corresponding to the identity of the candidate A, and print it at the position of the signature box of the candidate A.

It should be noted that, at this time, the virtual coordinates of the R1C0R2C1 area in the virtual space are still obtained by recognizing the graphics of the first code array, not the relative position of Candidate A's signature grid in the examination room sign-in form. When candidate A signs in the corresponding signature box, the smart pen obtains the virtual coordinate area of R1C0R2C1 by identifying the first array in candidate A's signature box, and then stores R1C0R2C1 in the smart pen, because R1C0R2C1 is the only candidate identification , and one-to-one correspondence with Candidate A's account, that is, the binding relationship between Candidate A's identity and the smart pen is established.

The same is true for Candidate B. Referring to Figure 2, the server assigns the rectangular area R2C2R3C3, that is, the rectangular area formed by the vertices (R2, C2) and the vertices (R3, C3), to Candidate B in the virtual space, that is, the coordinates R2C2R3C3 as the candidate. The unique candidate ID of B is in one-to-one correspondence with the candidate account ID of candidate B. The first code array of the virtual space R2C2R3C3 area generated by the server is printed on the signature box of Candidate B in the paper-based examination room sign-in form. When candidate B signs in the corresponding signature box, the smart pen obtains the virtual coordinates of R2C2R3C3 by identifying the first array in candidate B's signature box, and then stores R2C2R3C3 in the smart pen. Since R2C2R3C3 is the only candidate identification, One-to-one correspondence with the account of Candidate B, that is, the binding relationship between the identity of Candidate B and the smart pen is established.

Further, the server 10 is also used to establish a one-to-one correspondence between the random first code array and the candidate's account, select at least one first code array to form a first code array combination, and the first code array combination is printed on the same first code array. on the writing medium.

For example, in an offline exam scenario, the exam area is divided into one or more exam rooms, each exam room has an exam room sign-in form, and the signature form of the same candidate is unique among all exam room sign-in forms. The same exam room contains multiple candidates. The exam room sign-in form is provided with signature boxes corresponding to the candidates in the exam room, and each signature box corresponds to each candidate in the exam room one-to-one.

As shown in Figure 2, the sign-in form in the same examination room includes candidates A, B, C, and D, and the first array printed in the signature box of each candidate corresponds to A, B, C, and D respectively. Wait for different unique examinee IDs, and the different unique examinee IDs are randomly assigned by the server in advance and then printed in the examination room sign-in form. In the above example, Candidate A is randomly assigned to the R1C0R2C1 area in the virtual space, that is, the first code array in Candidate A's signature grid on the examination room sign-in form is the code array in the R1C0R2C1 area in the virtual space; Candidate B is randomly assigned to The R2C2R3C3 area in the virtual space, that is, the first code array in Candidate B's signature grid on the examination room sign-in form, is the code array in the R2C2R3C3 area in the virtual space; for the same reason, the server can also randomize the RC coordinates for Candidate C in the virtual space. Select the first yard in an area, which is designated to be printed on the signature box of Candidate C on the examination room sign-in form. The smart pen held by examinee C when signing here recognizes and stores the virtual coordinates contained in the first code array there, that is, the binding of examinee C and the smart pen is completed.

This method solves the problem of pairing the smart pen with the candidate's identity when the smart pen is temporarily distributed for the offline exam. Candidates only need to sign at the signature place in the sign-in form (you can tick without writing your name), and you can quickly realize the binding of the candidate's identity and the smart pen, which is more efficient. In addition, relying on the coordinates of the virtual space to generate the first code array, and using the virtual coordinate information contained in the recognized first code array as the unique candidate identifier, it is less prone to errors than random numbering, and there will be no repeated binding. , the accuracy is higher.

At the same time, for some cheating behaviors, this method can also be well avoided. For example, even if examinee A and examinee B exchange test papers to cheat during the exam, the smart pen R1C0R2C1 held by examinee A still stores the writing track of examinee A when writing the answer, not examinee B's writing when writing the answer. trajectory. If Candidate A does not write a single word, and Candidate B exchanges the test paper with Candidate A after answering, then Candidate A's smart pen R1C0R2C1 will still store the writing track of 0, which will not affect the score.

Candidates receive the smart pen to complete the check-in, realizing the binding of the candidate's identity and the smart pen. After entering the question-issuing and answering link, the candidates can use the issued smart pen to answer on the test paper.

The smart pen 20 is used to detect the writing operation on the second writing medium printed with the second code array, and collect the writing track information corresponding to the writing operation on the second writing medium by identifying the second code array.

The second writing medium is the answer sheet or answer sheet of the offline exam, or even scratch paper, and the second code array is an explicit or implicit graphic-coded code array (or called a map) printed on the second writing medium. array, micro-graphic or micro-map array), the graphic code of the second code array is coded according to its relative position coordinates on the second writing medium, if the graphic code of the second code array is identified, the second code can be decoded to obtain the second code relative position of the array on the second writing medium. That is to say, the encoded original information type of the second code array is different from that of the first code array printed on the examination room sign-in form (the first code array is the virtual space coordinate, and the second code array is the actual coordinate on the answer sheet).

When the examinee uses the smart pen to write on the test paper or answer sheet, the image sensor on the head of the smart pen collects the second code array at the tip of the pen, and then decodes and recognizes it to obtain the coordinate information contained in the second code array, and then the tip of the smart pen can be obtained. The relative position on the second writing medium, that is, the position where the pen is dropped when writing. As the writing process continues, the image sensor on the head of the smart pen continuously collects the second code array at the tip of the pen and identifies the coordinate information, so that the writing trajectory information of the entire answering process can be obtained and stored in the memory of the smart pen. .

The smart pen 20 is also used for binding the smart pen identifier and the writing track information to the server 10 after binding.

The server 10 is further configured to obtain the examinee account corresponding to the smart pen identifier, identify the answer information contained in the writing track information, and bind the answer information to the examinee account.

As mentioned above, the memory of the smart pen 20 stores the writing track (which may be a set of coordinates arranged according to time stamps) in the state of the pen tip of the test taker's writing operation in the process of answering the question, and the writing track information and the smart pen 20 The unique candidate identifier stored and bound in the device is packaged and transmitted to the server 10, and the server 10 can obtain the smart pen identifier and the corresponding writing track information by unpacking.

Preferably, the smart pen 20 is used for offline transmission to the server through wired communication or wireless near field communication (NFC, Near Field Communication) after binding the smart pen identifier and the writing track information.

For example, after the test, the invigilator collects the smart pens in the test room, and then transmits the data stored in the smart pen after packaging and binding the smart pen identification and writing track information to their own mobile hard disk or laptop through the USB interface. Then, when returning to the server room of the online marking system, enter the data stored in the mobile hard disk or laptop into the server of the online marking system.

The smart pen uses a wired method such as USB or an offline method such as NFC to transmit data to the server. Compared with the way that the smart pen 20 transmits data to the server through the Internet or a mobile data network, the whole process of offline data transmission is carried out. The data of the smart pen is stored in the memory of the smart pen. It is transmitted to the server through an independent and directly connected wired link or NFC link, and the transmission will not pass through other devices on the Internet or Ethernet, so that cheaters cannot tamper or steal data on the relay, routing and switching devices of the communication link. , so as to effectively prevent cheaters from intercepting information such as the smart pen identification in the data packet modification package on the network, thereby forging the answer information or the candidate's identity to cheat.

After the server 10 unpacks and obtains the smart pen identifier and the corresponding writing track information, it can search for the corresponding candidate account according to the smart pen identifier. The smart pen identifier is the unique candidate identifier. When the server generates the first code array and assigns the unique candidate identifier, the server stores the corresponding relationship between the unique candidate identifier and the candidate account. As mentioned above, referring to Table 1, the server can establish a mapping relationship between the candidate's account (admission ticket number), virtual coordinates (unique candidate ID) and answer information. The unique candidate ID of R1C0R2C1 is allocated, and the unique candidate ID of R2C2R3C3 is randomly allocated to candidate B. These allocation information are stored in the mapping relationship shown in Table 1. Candidate A makes his smart pen bound with the unique candidate ID R1C0R2C1 as the smart pen ID by signing the signature on the corresponding signature box on the check-in form in the examination room. When the server unpacks the entered data and obtains the smart pen identifier R1C0R2C1, the candidate account of candidate A can be obtained by querying the smart pen identifier R1C0R2C1 in the mapping relationship, and then the answer information identified according to the writing track is also stored in the The mapping relationship shown in Table 1. Thus, the content of the answer of Candidate A is correctly entered. The examiner can query the answer A corresponding to examinee A on the online examination server through examinee A's admission ticket number to grade it. The graded scores can also be stored in the mapping relationship shown in Table 1.

Table 1

Further, in order to avoid cheating such as changing the pen or taking the test on behalf of the test room, you can also set a signature area on the answer sheet or test paper, specifically:

The writing track information includes a first writing track in the signature area of the second writing medium and a second writing track in the answering area of the second writing medium; the server is further configured to identify the signature information contained in the first writing track information, and identify the second writing track. The answer information contained in the writing track information;

The server is also used to determine whether the signature information matches the examinee's account, and if not, the answer information is not bound to the examinee's account.

In this embodiment, the answer sheet or the test paper as the second writing medium includes two areas: the signature area and the answer area, the second code array is printed in both areas, and the second code in the two areas The figures in the array are coded based on their relative position on the second writing medium. The signature area is the area where candidates sign on the answer sheet or test paper. Candidates are required to correctly write their name or information such as admission ticket number, ID number, etc., and the answer area is the area where candidates write their test answers.

The smart pen can distinguish whether the writing operation occurs in the signature area or the answering area by recognizing the coordinates contained in the second code array at the pen tip during the writing operation. Then, the first writing track in the signature area and the second writing track in the answering area may be stored separately and then entered into the server.

The server can identify the signature information contained in the first writing track, and the signature information includes the signature handwriting signed by the candidate. The server can compare the candidate's reference handwriting with the signature handwriting corresponding to the first writing track. If the similarity is greater than If it is equal to the threshold, it is considered that the handwriting matches, the identity of the examinee matches, and the answer information can be entered normally; if the similarity is less than the threshold, it is considered that the handwriting does not match, the identity of the examinee does not match, there is cheating on behalf of the test or the exchange of smart pens, and the answer information cannot be used. For normal entry, manual review is required first.

For example, if examinee A and examinee B exchange smart pens after signing in and receiving the pen, but before issuing the paper, the smart pen R1C0R2C1 held by examinee A becomes the smart pen R2C2R3C3, and then examinee A uses the smart pen R2C2R3C3 to sign , sign B in the signature area of the answer sheet, and then answer the question; after the test, when entering the server, it will enter R2C2R3C3, the signature B in the handwriting of candidate A and the answer. At this time, the server queries through R2C2R3C3 that the smart pen is bound to candidate B, and then compares the pre-stored reference handwriting of candidate B with the signature B of candidate A's handwriting, and finds that it does not match, which means that the entered answer is not the same as that of candidate B. The identities match, there is cheating, and manual review is required.

Therefore, using this method can effectively avoid the cheating behavior of candidates exchanging smart pens after receiving the smart pens and before issuing the test papers (the invigilation measures are usually stricter after the test papers are issued and the formal examination is started, and it is not easy to change the pen, but sign in After taking the pen, the test paper is issued and the invigilation measures before the official test are usually loose, so it is easy to exchange smart pens).

Correspondingly, when the examinee receives the smart pen, the handwriting of the signature on the examination sign-in form can be verified to determine whether there is someone taking the examination for the coordinates. Specifically, the smart pen is used to transmit the third writing track information corresponding to the writing operation on the first writing medium printed with the first code array to the server.

The writing operation on the first writing medium printed with the first code array is the writing operation when the examinee signs the sign-in form in the examination room when he signs in to receive the smart pen before the test. The handwriting information of the signature on the examination room sign-in form.

The server is further configured to obtain the signature information included in the third writing track information, and determine whether the signature information included in the third writing track information matches the candidate's account, and if not, compare the answer information with the candidate's account. be bound.

That is to say, when the examinee receives the smart pen and signs the check-in at the corresponding position on the check-in form in the examination room, the smart pen also detects the handwriting information of the signature of the check-in operation, and transmits the answer information to the server together. After acquiring the smart pen identifier, that is, the unique candidate identifier corresponding to the candidate's account, the server queries the aforementioned mapping table to obtain the corresponding candidate's account, obtains the candidate's reference handwriting pre-entered in the candidate's account, and then recognizes the third writing The signature information contained in the track information can preferably be identified by OCR. The signature information is compared with the reference handwriting. If the matching degree is greater than or equal to the threshold, the handwriting identification passes. If the matching degree is less than the threshold, the handwriting identification fails. The cheater pretends to be the examinee to take the pen, and signs the examinee's signature on the examination room sign-in form, and the answer information transmitted by the smart pen may be the answer information of the cheater on behalf of the examiner. In the case of this mismatch, the server may not bind the answer information entered together with the candidate's account, and prompt the invigilator to manually review the paper test papers.

That is to say, the smart pen can transmit both the signature information of the examination room sign-in form and the signature information on the test paper to the server, and the server will authenticate the two signatures. The answer information is bound to the candidate's account, and as long as there is a signature that does not match, it will not be bound, and manual compliance will be prompted, which effectively avoids cheating in the exam, such as replacing the test and changing the pen, and improves the fairness of the test system. sex.

In this embodiment, the server is further configured to obtain signature information included in the first writing track information through optical character recognition, and the server is further configured to obtain answer information included in the second writing track information through optical character recognition.

As mentioned above, both the first writing track and the second writing track can be expressed as a series of dotted coordinates arranged according to time stamps. According to the dotted coordinates, a graph of the writing track can be generated first, and then the OCR technology can be used to identify the graphs in the graph. The handwriting is recognized to obtain digital signature information or answer information. Compared with the method of scanning the image of the test paper and then OCR in the traditional technology, first of all, the method of generating graphics according to the dotted coordinates is purely algorithmic, while the method of scanning the test paper is mechanical (requires page turning and photosensitive), so the speed faster. In addition, there is less noise in the way of generating graphs by dotting coordinates. Dot data will only be generated when the examinee writes down, while the way of scanning the test paper has more noise, and the question information, frame lines, borders and other printed matter on the answer sheet or test paper will all cause interference. Therefore, the accuracy of recognizing the writing track in the above method is also higher than that of the conventional technology.

Further, the server is further configured to generate an answering record in a video format according to the writing track information.

As mentioned above, the writing track can be expressed as a series of dot coordinates arranged according to the time stamp, then the server draws the writing track frame by frame in an integral manner according to the time stamp, and then the answer record in the video format can be obtained. Play any format, including flash-type animated video formats. The answer record in this video format reflects the whole process of the examinee answering the question. By reviewing the answer record, it is possible to identify whether the examinee has cheated.

For example, the normal answer is to list the formula first, then calculate step by step, and finally get the answer result. If the answer record of Candidate A's video format shows that Candidate A writes the result first, then the formula, and then the calculation process, then Candidate A may have copied the answer of Candidate B from the adjacent table several times. That is to say, generating the answer records in video format can well identify and corroborate this kind of plagiarism.

In order to solve the aforementioned problems and improve the efficiency and accuracy of entering the answer information of the offline examination into the online marking system, the present invention also provides a method for collecting examination answer information, the execution of the method is based on the smart pen in the aforementioned examination system. 20. The implementation depends on the cooperation of the remote server 10. The method can rely on a computer program, specifically, as shown in Figure 3, the method includes:

Step S102: Detect the writing operation on the first writing medium printed with the first code array, obtain the unique candidate identifier contained in the first code array as the smart pen identifier, and generate the first code array corresponding to the unique candidate identifier is generated by a server, and at least one of the first code arrays is printed on the first writing medium.

Step S104: Detect the writing operation on the second writing medium printed with the second code array, and collect the writing track information corresponding to the writing operation on the second writing medium by identifying the second code array.

Step S106: Bind the smart pen identifier and the writing track information and transmit it to the server, and the server obtains the candidate account corresponding to the smart pen identifier, identifies the answer information contained in the writing track information, and sends the information to the server. The answer information is bound to the candidate account.

Preferably, the step of binding the smart pen identifier and the writing track information and then transmitting it to the server is: after binding the smart pen identifier and the writing track information through wired communication or wireless near field communication Offline transmission to the server.

In order to solve the aforementioned problems and improve the efficiency and accuracy of inputting the answer information of the offline examination into the online scoring system, the present invention also provides a device for collecting test answer information corresponding to the aforementioned method for collecting test answer information, as shown in the figure. 4, the device includes:

The identity binding module 102 is used to detect the writing operation on the first writing medium printed with the first code array, obtain the unique examinee identification contained in the first code array as the smart pen identification, and generate the corresponding unique examinee identification The first code array is generated by the server, and at least one of the first code arrays is printed on the first writing medium;

The writing track acquisition module 104 is configured to detect the writing operation on the second writing medium printed with the second code array, and collect the writing track information corresponding to the writing operation on the second writing medium by identifying the second code array ;

The information input module 106 is used to bind the smart pen identifier and the writing track information and transmit it to the server, and the server obtains the candidate account corresponding to the smart pen identifier, and identifies the answers contained in the writing track information. information, and bind the answer information to the candidate account.

After adopting the above-mentioned smart pen-based test system, method and device for collecting test answer information, on the one hand, the test taker only needs to sign in the designated signature area on the test room sign-in form to complete the binding of the smart pen and the reference candidate's identity, and The smart pen detects the candidate's writing trajectory in the exam to collect the answers, and then enters the server of the marking system. During the period, there is no need to manually read the exam papers, and the entry speed is faster. In the second aspect, because the smart pen collects answer information by identifying the code array printed on the test paper to obtain the timing position of the pen tip, it has less noise and higher accuracy than the scanning method in the traditional technology. Similarly, because the smart pen collects answers by identifying the code array printed on the test paper to obtain the timing position of the pen tip to collect answer information, even if candidates exchange test papers in the test room, the answers collected by the smart pen are still the answers written by the original test taker. It can effectively prevent some cheating behaviors and improve the fairness of the examination system.

The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the various embodiments can be referred to each other.

The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied to other related technologies Fields are similarly included in the scope of patent protection of the present invention.

Claims (11)

1. An examination system based on a smart pen comprises a server and at least one smart pen, and is characterized in that the server is used for generating first code arrays corresponding to unique examinee identifications, and at least one first code array is printed on a first writing medium;

the intelligent pen is used for detecting writing operation on a first writing medium printed with a first code array and acquiring a unique examinee identifier contained in the first code array as an intelligent pen identifier;

the intelligent pen is also used for detecting the writing operation on a second writing medium printed with a second code array, and acquiring writing track information corresponding to the writing operation on the second writing medium by identifying the second code array;

the intelligent pen is also used for binding the intelligent pen identification and the writing track information and then transmitting the information to a server;

the server is further used for obtaining an examinee account corresponding to the intelligent pen identifier, recognizing answer information contained in the writing track information and binding the answer information with the examinee account.

2. The smart pen-based examination system of claim 1, wherein the first code matrix expresses virtual coordinate information, the virtual coordinate information being the unique examinee identification, the virtual coordinate information corresponding one-to-one to the examinee account.

3. A smart pen-based testing system according to claim 1 or 2, wherein said server is further configured to establish a random one-to-one correspondence of said first code arrays to the examinee's account, select at least one of said first code arrays to form a first code array combination, said first code array combination being printed on the same first writing medium.

4. A smart pen-based testing system according to claim 1, wherein said writing trace information comprises a first writing trace in a signature area of said second writing medium and a second writing trace in an answer area of said second writing medium;

the server is further used for identifying signature information contained in the first writing track information and identifying answer information contained in the second writing track information;

the server is further used for judging whether the signature information is matched with the examinee account, and if not, the answer information is not bound with the examinee account.

5. A smart pen-based examination system as claimed in claim 4, wherein the server is further configured to obtain signature information included in the first writing trace information through optical character recognition, and the server is further configured to obtain answer information included in the second writing trace information through optical character recognition.

6. A smart pen-based examination system according to claim 1, wherein the smart pen is configured to transmit third writing trace information corresponding to a writing operation on the first writing medium printed with the first code array to the server;

the server is further used for obtaining signature information contained in the third writing track information, judging whether the signature information contained in the third writing track information is matched with the examinee account, and if not, unbounding the answer information with the examinee account.

7. A smart pen-based examination system as claimed in claim 1, wherein the server is further configured to generate an answer record in video format from the writing trace information.

8. A smart pen-based examination system as claimed in claim 1, wherein the smart pen is further configured to transmit the smart pen identifier and the writing trace information to a server after being bound by means of wired communication or wireless near field communication.

9. A method for collecting examination answer information, comprising:

detecting writing operation on a first writing medium printed with a first code array, acquiring a unique examinee identifier contained in the first code array as an intelligent pen identifier, generating the first code array corresponding to the unique examinee identifier by a server, and printing at least one first code array on the first writing medium;

detecting writing operation on a second writing medium printed with a second code array, and acquiring writing track information corresponding to the writing operation on the second writing medium by identifying the second code array;

and transmitting the intelligent pen identification and the writing track information to a server after the intelligent pen identification and the writing track information are bound, acquiring an examinee account corresponding to the intelligent pen identification by the server, identifying answer information contained in the writing track information, and binding the answer information with the examinee account.

10. The method for collecting examination answer information according to claim 9, wherein the step of transmitting the binding between the smart pen identifier and the writing trace information to a server comprises:

and binding the intelligent pen identification and the writing track information in a wired communication or wireless near field communication mode, and then transmitting the binding to the server in an off-line mode.

11. An apparatus for collecting examination answer information, comprising:

the identity binding module is used for detecting writing operation on a first writing medium printed with a first code array, acquiring a unique examinee identifier contained in the first code array as an intelligent pen identifier, generating the first code array corresponding to the unique examinee identifier by a server, and printing at least one first code array on the first writing medium;

the writing track acquisition module is used for detecting writing operation on a second writing medium printed with a second code array and acquiring writing track information corresponding to the writing operation on the second writing medium by identifying the second code array;

the information input module is used for enabling the intelligent pen identification and the writing track information to be bound and then transmitted to the server, the server acquires an examinee account corresponding to the intelligent pen identification, identifies answer information contained in the writing track information, and binds the answer information with the examinee account.

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