CN112053264A - Method and device for collecting examination answer information and examination system based on intelligent pen - Google Patents
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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
Technical Field
The invention relates to the field of intelligent pen application, in particular to a method and a device for acquiring examination answer information and an examination system based on an intelligent pen.
Background
The existing on-line examination marking system still depends on an off-line examination scene, and uses paper media as an answer information writing medium. In a typical online examination marking scene, a test taker writes answers on a paper answer sheet, an invigilator collects the paper answer sheet, manually identifies an admission card number and answer content on the paper answer sheet through a scroll image scanning and an OCR technology, binds the admission card number (representing the account of the test taker) and the digital answer content, and then inputs the bound admission card number and the digital answer content into a database of an online marking system.
However, the conventional method for inputting answer information is inefficient, and needs to scan and OCR paper answer sheets one by one, and much time is consumed for recognizing and switching the paper answer sheets. Meanwhile, the method binds the admission card number and the answer content depending on the OCR recognition of the admission card number, and if the examinee handwriting is sloppy, the admission card number or the answer content is easily recognized wrongly, thereby influencing the correct evaluation of the examination of the examinee.
Therefore, the traditional answer information acquisition mode in the on-line examination scene of the off-line examination is low in efficiency and low in accuracy.
Disclosure of Invention
In order to solve the problems, the invention provides a high-efficiency and high-accuracy examination system based on an intelligent pen.
An intelligent pen-based examination system comprises a server and at least one intelligent pen, wherein 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.
In one embodiment, the first code array expresses virtual coordinate information, the virtual coordinate information is the unique examinee identifier, and the virtual coordinate information corresponds to the examinee account in a one-to-one manner.
In one embodiment, the server is further configured to establish a random one-to-one correspondence relationship between the first code arrays and the examinee account, and select at least one of the first code arrays to form a first code array combination, where the first code array combination is printed on the same first writing medium.
In one embodiment, the writing trace information includes a first writing trace in a signature area of the second writing medium and a second writing trace in an answer area of the 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.
In one embodiment, the server is further configured to obtain signature information included in the first writing trajectory information through optical character recognition, and the server is further configured to obtain answer information included in the second writing trajectory information through optical character recognition.
In one embodiment, the intelligent pen is used for transmitting 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 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.
In one embodiment, the server is further configured to generate an answer record in a video format according to the writing track information.
In one embodiment, the smart pen is further configured to bind the smart pen identifier and the writing track information and transmit the bound smart pen identifier and the writing track information to a server through wired communication or wireless near field communication offline.
In addition, the invention also provides a high-efficiency and high-accuracy method for collecting examination answer information based on the intelligent pen.
A method of 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.
In one embodiment, the step of binding the smart pen identifier and the writing trace information and transmitting the binding to the server includes:
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.
In addition, the invention also provides a device for collecting examination answer information with high efficiency and high accuracy based on the intelligent pen.
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.
After the examination system based on the intelligent pen, the method and the device for acquiring examination answer information are adopted, on one hand, examinees can finish the binding of the intelligent pen and the identities of the referenced examinees only by designating signature areas on an examination room check-in list to check in, the intelligent pen detects writing tracks in the examination of the examinees to acquire answers, then the answers are input into a server of a paper reading system, and the input speed is higher without manually turning over test papers in the process. In the second aspect, because the smart pen acquires answer information by identifying the time sequence position of the pen point obtained by the code array printed on the test paper, compared with the traditional scanning method, the method has the advantages of less noise and higher accuracy. In the same way, the intelligent pen acquires the answers by identifying the code matrix printed on the test paper to acquire the time sequence position of the pen point so as to acquire the answer information, and even if the examinee exchanges the test paper on the examination room, the answers acquired by the intelligent pen are still the answers written by the original examinee, so that partial cheating can be effectively prevented, and the fairness of the examination system is improved.
Drawings
Fig. 1 is a schematic diagram of a smart pen-based examination system according to an embodiment of the present application;
FIG. 2 is a schematic diagram illustrating a server allocating virtual space region coordinates as unique test taker identifiers according to an embodiment of the present application;
fig. 3 is a flowchart illustrating a method for collecting examination answer information according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of an apparatus for collecting examination answer information according to an embodiment of the present application.
Detailed Description
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, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are referred to in the embodiments of the present application, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present application, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.
In order to solve the foregoing problems and improve the efficiency and accuracy of entering answer information of an offline examination into an online paper marking system, the present invention particularly provides an examination system based on a smart pen, as shown in fig. 1, in which the examination system includes a server 10 and at least one smart pen 20. The server may be a server of the scoring system or may be a separate server device. The intelligent pen is an intelligent device which can acquire a writing track by shooting through an image sensor of a pen point and recognizing an explicit or implicit code array (also called a dot diagram, an array diagram, a diagram array or a micro diagram array) printed at a position relevant to the position of a pen point on a writing medium during writing. The applicable scene of the examination system comprises an offline examination part and an online examination paper reading part, wherein in the online examination, each examinee can temporarily distribute an intelligent pen when signing in an examination room, the examinee answers on a paper examination paper by using the distributed intelligent pen, and the intelligent pen is used for collecting a writing track during answering, expressing answer information and storing the writing track in the intelligent pen. When the examination is finished, the invigilator collects the intelligent pen and records the answer information into the server of the online examination paper marking system for filing and storage on one hand, and collects paper examination paper written by the examinee for physical filing on the other hand, so that the examination is convenient to check.
Specifically, in the examination system:
a server 10 for generating first code arrays corresponding to unique test taker identifications, at least one of the first code arrays being printed on a first writing medium.
The smart pen 20 is configured to detect a writing operation on a first writing medium printed with a first code array, and obtain a unique examinee identifier included in the first code array as a smart pen identifier.
In this embodiment, the first writing medium is an examination room check-in table. When entering the examination room, the examinee needs to check in to confirm the arrival of the examinee, and the intelligent pen for examination is taken. At the moment, the identity of the examinee needs to be bound with the intelligent pen, so that when the examinee answers with the intelligent pen, the intelligent pen can ensure that the recorded answering information is answered by the examinee.
As shown in FIG. 2, the examination room check-in table comprises a plurality of check-in grids, each check-in grid corresponds to an examinee, and prompt characters indicating check-in positions of the examinees are printed on the check-in grid. For example, the check-in lattice on the right side of the prompt word "examinee a signature place" is a place where examinee a needs to sign when checking in, and the check-in lattice on the right side of the prompt word "examinee B signature place" is a place where examinee B needs to sign when checking in. Different first code arrays are printed in the check-in grid of the examinee A and the check-in grid of the examinee B to express different information, and the different information is a unique examinee identifier and corresponds to an examinee account number such as an admission card number. When the examinee A signs the check-in grid of the examinee A by using the intelligent pen, the information expressed by the first code array printed in the check-in grid area of the examinee A where the pen point is located is the only examinee identifier of the examinee A when the intelligent pen detects that the pen point is located in the check-in grid area of the examinee A in the signing process, and the information expressed by the first code array printed in the check-in grid area of the examinee B where the pen point is located is the only examinee identifier of the examinee B when the examinee B signs the check-in grid of the examinee B by using the intelligent pen in the signing process.
Preferably, the first code array expresses virtual coordinate information, the virtual coordinate information is the unique examinee identifier, and the virtual coordinate information corresponds to the examinee account one to one.
The coordinate information expressed in the different first code arrays printed in the check-in lattices of test taker a and test taker B is coordinate information in the virtual space. That is, the first code array in each signature grid on the examination room check-in table does not express the relative position coordinates of the first code array on the examination room check-in table, but expresses the coordinates of the virtual space.
As shown in fig. 2, the server may pre-construct a virtual space RC coordinate system, and divide the RC coordinate into a plurality of regions, where each region generates a first code array according to a relative position, and each region corresponds to a unique test taker identifier. For example, if the region of the virtual space to which the test taker a is assigned is a rectangular region formed by the vertices (R1, C0) and the vertices (R2, C1), which is R1C0R2C1, the server generates a code matrix in advance from each coordinate in the virtual space RC coordinate system, that is, the position information of the graphic code in the code matrix corresponds to the relative position of each position information in the virtual space RC coordinate. Then, a region R1C0R2C1 in the virtual space RC coordinate system is intercepted as a first code matrix corresponding to the identity of examinee a, and is printed at the position of the signature lattice of examinee a.
Note that, at this time, the virtual coordinates of the R1C0R2C1 area in the virtual space are obtained by recognizing the pattern of the first code array, not the relative position of the signature grid of examinee a in the examination room check-in table. When the examinee A signs in the corresponding signature lattice, the intelligent pen obtains a virtual coordinate area of R1C0R2C1 by identifying the first code array in the signature lattice of the examinee A, then the R1C0R2C1 is stored in the intelligent pen, and the R1C0R2C1 is the unique examinee identifier and corresponds to the account of the examinee A one by one, namely the binding relationship between the identity of the examinee A and the intelligent pen is established.
For the same reason as that of examinee B, referring to FIG. 2, the server assigns a rectangular region R2C2R3C3, namely a rectangular region formed by vertices (R2, C2) and vertices (R3, C3), to examinee B in a virtual space, namely, coordinates R2C2R3C3 are used as unique examinee identification of the examinee B and are in one-to-one correspondence with the examinee account identity of the examinee B. The first code matrix of the server-generated region of virtual space R2C2R3C3 is printed on the paper-based table of examination room check-in at examinee B's signature grid. When examinee B signs in the corresponding signature lattice, the intelligent pen obtains the virtual coordinate of R2C2R3C3 by identifying the first code array in the signature lattice of the examinee B, then the R2C2R3C3 is stored in the intelligent pen, and the R2C2R3C3 is the unique examinee identifier and corresponds to the account of the examinee B one by one, namely the binding relationship between the identity of the examinee B and the intelligent pen is established.
Further, the server 10 is further configured to establish a one-to-one correspondence relationship between the random first code arrays and the examinee account, select at least one first code array to form a first code array combination, and print the first code array combination on the same first writing medium.
For example, in an online examination scenario, the examination area is divided into one or more examination rooms, each examination room has an examination room check-in table, and the signature grid of the same examinee is unique in all examination room check-in tables. The same examination room comprises a plurality of examinees, signature grids corresponding to the examinees of the examination room are arranged on the examination room check-in table, and each signature grid corresponds to each examinee of the examination room one to one.
As shown in fig. 2, the same examination room check-in table includes multiple examinees such as examinee A, B, C and D, the first code array printed in the signature grid of each examinee corresponds to different unique examinee identifiers such as A, B, C and D, and the different unique examinee identifiers are printed in the examination room check-in table after being randomly allocated by the server in advance. In the above example, test taker a is randomly allocated to the R1C0R2C1 area in the virtual space, that is, the first code array in the signature lattice of test taker a on the check-in table of the test taker a is the code array in the R1C0R2C1 area in the virtual space; the examinee B is randomly distributed to the R2C2R3C3 area in the virtual space, namely, the first code array in the examinee B signature grid on the examination room check-in table is the code array in the R2C2R3C3 area in the virtual space; similarly, the server may also randomly select a first code matrix of an area in the virtual space RC coordinates for test taker C, the first code matrix designated to be printed at the test taker C's signature pane of the test taker check-in form. And the intelligent pen held by the examinee C when signing at the position identifies the virtual coordinates contained in the first code array at the position and stores the virtual coordinates, namely, the binding of the examinee C and the intelligent pen is completed.
By adopting the mode, the problem of pairing the intelligent pen and the identity of the examinee when the intelligent pen is temporarily distributed in the offline examination is solved. The examinee only needs to sign at the signing place in the check-in table (the sign-off can be made without writing the name), the binding between the examinee identity and the intelligent pen can be rapidly realized, and the method is more efficient. And the first code array is generated by depending on the coordinates of the virtual space, and the virtual coordinate information contained in the identified first code array is used as the unique examinee identification, so that compared with a random numbering mode, the method is not easy to make mistakes, can not be repeatedly bound, and has higher accuracy.
Meanwhile, for partial cheating behaviors, the method can be well avoided. For example, even if examinee a and examinee B exchange test papers for cheating during the examination, the smart pen R1C0R2C1 held by examinee a still stores the writing trace of the answer written by examinee a, not the writing trace of the answer written by examinee B. If the examinee A does not write in a word and the examinee B exchanges test paper with the examinee A after answering, the writing track of 0 is still stored in the intelligent pen R1C0R2C1 of the examinee A, and the score cannot be influenced.
The examinee receives the intelligent pen to check in, the identity of the examinee is bound with the intelligent pen, and after the examination paper answering link is entered, the examinee can answer the examination paper by using the distributed intelligent pen.
The smart pen 20 is configured to detect a writing operation on a second writing medium printed with a second code array, and acquire writing trace information corresponding to the writing operation on the second writing medium by recognizing the second code array.
The second writing medium is the answer paper or answer card of the off-line examination, even the draft paper, the second code array is the code array printed on the second writing medium and coded by the explicit or implicit graphic code (or called the graphic array, the micro graphic or the micro graphic array), the graphic code of the second code array is coded according to the relative position coordinate on the second writing medium, the graphic code of the second code array is recognized, and the relative position of the second code array on the second writing medium can be obtained by decoding. That is, the second code array is different from the first code array printed on the examination room sign-in table in the type of the original information of the code (the first code array is virtual space coordinates, and the second code array is actual coordinates on answer paper).
When an examinee writes on a test paper or an answer sheet by using the intelligent pen, the image sensor at the head of the intelligent pen collects the second code array at the pen point, and then the second code array is decoded and identified to obtain the coordinate information contained in the second code array, so that the relative position of the pen point of the intelligent pen on a second writing medium can be obtained, namely the position of pen falling during writing. And as the writing process continues, the image sensor at the head of the intelligent pen continuously acquires the second code array at the pen point and identifies coordinate information, so that the writing track information of the whole answering process can be obtained and stored in the memory of the intelligent pen.
The smart pen 20 is further configured to bind the smart pen identifier and the writing trace information and transmit the information to the server 10.
The server 10 is further configured to obtain an examinee account corresponding to the smart pen identifier, recognize answer information included in the writing trajectory information, and bind the answer information with the examinee account.
As described above, the writing trace (which may be a set of coordinates arranged according to a timestamp) in the pen tip pen-down state of the writing operation during the answer process of the examinee is stored in the memory of the smart pen 20, the writing trace information and the unique examinee identifier stored and bound in the smart pen 20 can be packaged and transmitted to the server 10, and the server 10 unpacks the writing trace information to obtain the smart pen identifier and the corresponding writing trace information.
Preferably, the smart pen 20 is configured to bind the smart pen identifier and the writing trace information and then transmit the information to a server offline in a wired communication or wireless Near Field Communication (NFC).
For example, after an examination is finished, an invigilator collects an intelligent pen in an examination room, transmits data, which is stored in the intelligent pen and obtained by packaging and binding the intelligent pen identification and writing track information, to a mobile hard disk or a notebook computer of the invigilator through a USB interface for storage, and then records the data stored in the mobile hard disk or the notebook computer into a server of an online paper marking system when returning to a server room of the online paper marking system.
The intelligent pen adopts wired modes such as USB and the like or offline modes such as NFC and the like to transmit data to the server, compared with the mode that the intelligent pen 20 transmits data to the server through the Internet or a mobile data network, the whole-process offline data transmission is realized, the data of the intelligent pen is transmitted to the server through the independent directly-connected wired link or the NFC link by the memory of the intelligent pen, and other devices on the Internet or the Ethernet cannot be passed in the transmission process, so that cheaters cannot tamper or steal the data on the relay, the route and the switching equipment of a communication link, and therefore the cheaters are effectively prevented from intercepting and capturing information such as intelligent pen identification in a data packet modification packet on the network, and the behavior of cheating by counterfeiting answer information or examinee identity is realized.
After the server 10 unpacks the smart pen identifier and the corresponding writing track information, the corresponding examinee account can be searched according to the smart pen identifier. The intelligent pen identification is the only examinee identification, and the server stores the corresponding relation between the only examinee identification and the examinee account when generating the first code array and distributing the only examinee identification. As described above, referring to table 1, a mapping relationship between an examinee account (admission card number), virtual coordinates (unique examinee identifier) and answer information may be established in the server, when an examination room is assigned to an examinee before examination, an unique examinee identifier of R1C0R2C1 is randomly assigned to examinee a, and an unique examinee identifier of R2C2R3C3 is randomly assigned to examinee B, and these assignment information are stored in the mapping relationship shown in table 1. The examinee A binds the unique examinee identifier R1C0R2C1 as the intelligent pen identifier to the intelligent pen held by the examinee A through signing on the corresponding signature grid on the examination room check-in table. When the server unpacks the recorded data to obtain the intelligent pen identifier R1C0R2C1, the examinee account of the examinee A can be obtained by inquiring the intelligent pen identifier R1C0R2C1 in the mapping relation, and then the answer information identified according to the writing track is stored in the mapping relation shown in the table 1. Thus, the answer content of the examinee A is correctly input. And inquiring the answer A corresponding to the examinee A through the examination admission card number of the examinee A on the on-line examination server of the examinee A by the examinee reader to carry out examination scoring, wherein the scoring score can also be stored in the mapping relation shown in the table 1.
TABLE 1
Further, in order to avoid cheating such as changing pens or taking a substitute for examination in an examination room, a signature area can be arranged on an answer sheet or a test paper, specifically:
the writing trace information includes a first writing trace in a signature area of the second writing medium and a second writing trace in an answer area of the second writing medium; the server is also 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 also used for judging whether the signature information is matched with the account of the examinee, and if not, the answer information is not bound with the account of the examinee.
In this embodiment, the answer sheet or test paper as the second writing medium includes two areas: the signature area and the answer area, the second code array is printed in the two areas, and the graphic codes in the second code array in the two areas are based on the relative positions of the graphic codes on the second writing medium. The signature area is an area where the examinee signs the name on an answer sheet or a test paper, the examinee is required to correctly write the own name or information such as a reference certificate number, an identification number and the like, and the answer area is an area where the examinee writes an answer to the examination.
The intelligent pen can distinguish whether the writing operation occurs in a signature area or an answer area by identifying the coordinates contained in the second code array at the pen point during the writing operation. And then the first writing track of the signature area and the second writing track of the answer area can be respectively stored and then recorded into the server.
The server can identify the signature information contained in the first writing track, the signature information contains the signature handwriting signed by the examinee, the server can call the reference handwriting of the examinee and the signature handwriting corresponding to the first writing track to compare, if the similarity is greater than or equal to a threshold value, the handwriting is considered to be matched, the identity of the examinee is matched, and the answer information can be normally input; if the similarity is smaller than the threshold value, the handwriting is not matched, the identity of the examinee is not matched, the cheating behaviors of taking a substitute test or exchanging an intelligent pen exist, answer information cannot be normally input, and manual review needs to be carried out firstly.
For example, if the examinee a and the examinee B exchange the smart pens after having signed the take pen and before having issued the test paper, the smart pen R1C0R2C1 held by the examinee a becomes the smart pen R2C2R3C3, and then the examinee a signs through the smart pen R2C2R3C3, signs the signature B in the signature area of the answer sheet, and then answers the test paper; after the examination is finished, when the examination is recorded into the server, the signature B and the answer of the handwriting of the examinee A, R2C2R3C3, are recorded. At this time, the server inquires that the intelligent pen is the examinee B through R2C2R3C3, then compares the pre-stored reference handwriting of the examinee B with the signature B of the handwriting of the examinee A, if the pre-stored reference handwriting of the examinee B is not matched with the signature B of the handwriting of the examinee A, the recorded answer is not consistent with the identity of the examinee B, cheating behaviors exist, and manual review is needed.
Therefore, by adopting the mode, the cheating behavior that the examinee exchanges the intelligent pens before the examinee issues the test paper after receiving the intelligent pens can be effectively avoided (the invigilation measures after the test paper is issued to start the formal test are usually stricter, the pen exchange condition is not easy to occur, but the invigilation measures before the test paper is issued to start the formal test after the examinee signs in and takes the pen are usually loose, and the intelligent pens are easy to exchange).
Correspondingly, when the examinee leads the intelligent pen, the handwriting signed on the examination check-in table is verified, and whether the coordinate of the person under examination is checked in a surrogate or not is judged. Specifically, the smart pen is used for transmitting third writing track information corresponding to writing operation on a first writing medium printed with a first code array to the server.
And when the writing operation on the first writing medium printed with the first code array is the writing operation when the examinee signs in and receives the intelligent pen before the examination and signs on the examination room sign-in table, the corresponding third writing track information is the handwriting information of the examinee signs on the examination room sign-in table.
The server is further used for obtaining the 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.
That is, when the examinee receives the intelligent pen and signs the signature at the corresponding position on the examination room sign-in table, the intelligent pen also detects the handwriting information of the signature of the sign-in operation and transmits the handwriting information to the server when the answer information is transmitted. After the server acquires the intelligent pen identifier, namely the unique examinee identifier corresponding to the examinee account, the server queries the mapping table to acquire the corresponding examinee account, acquires the reference handwriting of the examinee pre-recorded by the examinee account, and then identifies the signature information contained in the third writing track information, preferably, the signature information can be identified in an OCR mode. And comparing the signature information with the reference handwriting, if the matching degree is greater than or equal to the threshold value, the handwriting authentication is passed, if the matching degree is less than the threshold value, the handwriting authentication is failed, in this case, a cheating act on behalf of the examinee may exist, the cheating person on behalf of the examinee takes the pen, the cheating person signs a signature on the examination room sign-in table to sign in, and the answer information transmitted by the intelligent pen may be answer information of the cheating person on behalf of the examinee. For the unmatched condition, the server does not bind the answer information input together with the examinee account, and prompts the invigilator to manually recheck the paper examination paper.
That is to say, the intelligent pen can transmit the signature information of the examination room sign-in table and the signature information on the examination paper to the server, the server identifies both the signatures, if the two signatures are identified and matched with the reference signature handwriting of the corresponding examinee account, the answer information is bound with the examinee account, and if one signature is not matched, the answer information is not bound, and the manual coincidence is prompted, so that the cheating behaviors of examination substitute, pen replacement and the like in the examination are effectively avoided, and the fairness of the examination system is improved.
In this embodiment, the server is further configured to obtain signature information included in the first writing trajectory information through optical character recognition, and the server is further configured to obtain answer information included in the second writing trajectory information through optical character recognition.
As described above, the first writing track and the second writing track may be represented as a series of dotting coordinates arranged according to a time stamp, a graph of the writing tracks may be generated according to the dotting coordinates, and then handwriting in the graph may be recognized by an optical character recognition OCR technology to obtain digitized signature information or answer information. Compared with the mode of scanning the image of the test paper and then OCR in the traditional technology, firstly, the mode of generating the graph according to the dotting coordinates is a pure algorithm mode, and the mode of scanning the test paper is a mechanical mode (needing page turning and light sensing), so the speed is higher. In addition, the mode of generating the graph by dotting the coordinate has less noise, the dotting data can be generated only when the examinee drops a pen, the mode of scanning the test paper has more interference noise, and printed matters such as test question information, frame lines, side lines and the like on an answer sheet or the test paper can interfere with each other, so that the accuracy of recognizing the writing track by the mode is higher than that of the traditional technology.
Further, the server is also used for generating answer records in a video format according to the writing track information.
As mentioned above, the writing tracks can be represented as a series of dotting coordinates arranged according to the time stamp, and the server draws the writing tracks frame by frame in an integral manner according to the time stamp, so as to obtain the answer records in a video format, wherein the video format is any playable format, including a flash-type animation video format. The video-format answer record reflects the whole answer process of the examinee, and whether the examinee cheats can be determined by rechecking the answer record.
For example, the normal answer is a formula which is first listed, then calculated step by step, and finally the answer result is obtained. If the answer record of the video format of the examinee A is displayed in such a way that the examinee A writes the result firstly, then writes the formula and then writes the calculation process, the examinee A can be the answer of the examinee B who copies the adjacent table for many times. That is, the answer record generated in the video format can well identify and prove the actions of plagiarism in the adjacent table.
In order to solve the problems and improve the efficiency and accuracy of inputting answer information of an offline examination into an online examination marking system, the invention also provides a method for acquiring the answer information of the examination, and the execution of the method is realized based on the intelligent pen 20 in the examination system and by depending on the cooperation of the remote server 10. The method may rely on a computer program, in particular, as shown in fig. 3, the method comprising:
step S102: the method comprises the steps of detecting writing operation on a first writing medium printed with a first code array, obtaining a unique examinee identification contained in the first code array as an intelligent pen identification, generating the first code array corresponding to the unique examinee identification by a server, and printing the first code array on the first writing medium.
Step S104: and 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.
Step S106: 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.
Preferably, the step of binding the smart pen identifier and the writing track information and transmitting the binding to the 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.
In order to solve the above problems and improve the efficiency and accuracy of entering the answer information of the offline examination into the online examination paper marking system, the present invention further provides a device for collecting the answer information of the examination corresponding to the method for collecting the answer information of the examination, as shown in fig. 4, the device comprises:
the identity binding module 102 is configured to detect a writing operation on a first writing medium on which a first code array is printed, acquire a unique examinee identifier included in the first code array as an intelligent pen identifier, generate the first code array corresponding to the unique examinee identifier by a server, and print at least one first code array on the first writing medium;
the writing track acquisition module 104 is configured to detect a writing operation on a second writing medium printed with a second code array, and acquire writing track information corresponding to the writing operation on the second writing medium by recognizing the second code array;
the information input module 106 is used for transmitting the intelligent pen identifier and the writing track information after being bound to the server, the server acquires the examinee account corresponding to the intelligent pen identifier, identifies the answer information contained in the writing track information, and binds the answer information with the examinee account.
After the examination system based on the intelligent pen, the method and the device for acquiring examination answer information are adopted, on one hand, examinees can finish the binding of the intelligent pen and the identities of the referenced examinees only by designating signature areas on an examination room check-in list to check in, the intelligent pen detects writing tracks in the examination of the examinees to acquire answers, then the answers are input into a server of a paper reading system, and the input speed is higher without manually turning over test papers in the process. In the second aspect, because the smart pen acquires answer information by identifying the time sequence position of the pen point obtained by the code array printed on the test paper, compared with the traditional scanning method, the method has the advantages of less noise and higher accuracy. In the same way, the intelligent pen acquires the answers by identifying the code matrix printed on the test paper to acquire the time sequence position of the pen point so as to acquire the answer information, and even if the examinee exchanges the test paper on the examination room, the answers acquired by the intelligent pen are still the answers written by the original examinee, so that partial cheating can be effectively prevented, and the fairness of the examination system is improved.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope 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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| CN202010876581.0A CN112053264A (en) | 2020-08-26 | 2020-08-26 | Method and device for collecting examination answer information and examination system based on intelligent pen |
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| CN202010876581.0A CN112053264A (en) | 2020-08-26 | 2020-08-26 | Method and device for collecting examination answer information and examination system based on intelligent pen |
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