CN110705270A - Voice monitoring online examination method and device based on five-determination technology - Google Patents
Voice monitoring online examination method and device based on five-determination technology Download PDFInfo
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Abstract
The invention discloses a voice monitoring online examination method, which comprises the following steps: when a target examinee logs in an online examination end, acquiring an examination type according to login information, and acquiring a cheating keyword set based on the examination type; recording the answering site in the examination process, extracting the voice information in the recording information and converting the voice information into text information; and matching the cheating keywords in the cheating keyword set with the text information in sequence, and determining whether to send a warning signal to an examination management terminal according to a matching result. The invention also discloses an online examination device which comprises an examination management terminal and an online examination terminal. The method and the device can automatically monitor whether cheating phenomenon exists in the process of the online examination.
Description
Technical Field
The invention relates to the technical field of education, in particular to a voice monitoring online examination method and device based on five technologies.
Background
The traditional examination modes comprise examination paper printing, examination room arrangement, invigilation teacher organization, examination on-site examination of examinees, examination paper review and examination result notification, and are time-consuming and labor-consuming. Because of the traditional on-site examination method, the examination can be performed only after arranging uniform examination points, time and invigilators. This brings great inconvenience to the examinee. Especially in the field of examination in the industry (for example, professional examinations such as qualification certificate of accounting practice, qualification certification of network engineers, etc.), workers in various industries often have to give up taking examinations due to examination time factors or examination place factors. In addition, the traditional examination method depends on manual invigilation, which not only needs to consume a lot of manpower and material resources, but also has some defects in the aspect of anti-cheating controllability. The foregoing problems are therefore highly desirable.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.
It is still another object of the present invention to provide a voice monitoring online examination method and apparatus thereof, which can automatically monitor whether a cheating phenomenon exists during an online examination.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a voice monitoring online examination method, comprising:
when a target examinee logs in an online examination end, acquiring an examination type according to login information, and acquiring a cheating keyword set based on the examination type;
recording the answering site in the examination process, extracting the voice information in the recording information and converting the voice information into text information;
and matching the cheating keywords in the cheating keyword set with the text information in sequence, and determining whether to send a warning signal to an examination management terminal according to a matching result.
Preferably, the voice-monitored online examination method further includes:
creating a test paper library, collecting a plurality of test papers and corresponding test paper answers and storing the test papers and the corresponding test paper answers in the test paper library;
and acquiring a corresponding candidate test paper set and corresponding test paper answers from the test paper library according to the test type of the target examinee, analyzing answer texts corresponding to the candidate test paper set, and acquiring the cheating keyword set.
Preferably, the voice-monitored online examination method includes that the examination management terminal calls the recording information for manual judgment after receiving the warning signal, and if the target examinee is judged to cheat, the examination system is closed.
Preferably, the voice-monitored online examination method further includes:
creating an examinee information base, collecting basic identity information of a target examinee and storing the basic identity information into the examinee information base;
when a target examinee logs in the online examination terminal, acquiring basic identity information input by the target examinee, comparing the basic identity information input by the target examinee with basic identity information prestored in the examinee information base, and if the information is consistent, randomly distributing a test paper from the candidate test paper set to the target examinee;
the basic identity information of the examinee comprises the name, age, sex, identity card number and the examination type of the examinee.
Preferably, the voice-monitored online examination method further includes:
collecting facial image information and sound characteristic information of a target examinee, and storing the facial image information and the sound characteristic information into the examinee information base;
if the target examinee passes the comparison of the basic identity information, carrying out face recognition and voice recognition on the target examinee, acquiring face image information and voice feature information for verifying the target examinee, comparing the face image information and the voice feature information for verification with face image information and voice feature information prestored in the examinee information base, and if the information is consistent, randomly distributing a test paper from the candidate test paper set to the target examinee;
and when the preset answering time is over or the target examinee selects to end the examination, generating an answer sheet and sending the answer sheet to the examination management terminal.
The invention also provides a voice monitoring online examination method based on the five technologies, which comprises the following steps:
randomly selecting a plurality of moments to obtain a face photo, an environment photo and an answer page of the target examinee during the answer period of the target examinee, synthesizing the face photo, the environment photo and the answer page of each moment, and then adding a watermark and storing the watermark in a screenshot manner;
when the watermark picture of each moment is obtained, the position of a target examinee is positioned, the corresponding relation among the time information, the position information and the watermark picture in each moment state is established, and a watermark picture containing the time information and the position information is generated;
after the preset answering time is over or the target examinee selects to end the examination, an answer sheet is generated, watermark photos which correspond to a plurality of moments and contain time information and position information are stored together with the answer sheet and are sent to the examination management end.
The present invention also provides an online examination apparatus, comprising:
the examination management terminal is provided with the examinee information library and the examination paper library;
the system comprises an online examination terminal, a control module, an input module, a display module and a recording module, wherein the control module is in communication connection with an examination management terminal;
wherein, when the target examinee logs on the online examination terminal, the online examination terminal calls the input module and the display module to allow the target examinee to input basic identity information and sends the received basic identity information of the examinee to the examination management terminal, the examination management terminal compares the received basic identity information of the target examinee with the basic identity information prestored in the examinee information base, if the information comparison is consistent, randomly distributing a test paper from the candidate test paper set to the target examinee, in the examination process of the target examinee, the control module controls the recording module to open a field for recording answers, voice information in the recording information is extracted and converted into text information, cheating keywords in the cheating keyword set are matched with the text information in sequence, and whether a warning signal is sent out to the examination management terminal is determined according to a matching result.
Preferably, the online testing device further comprises:
the front camera is used for acquiring face image information used for verifying the target examinee;
the rear camera is used for acquiring the environmental photo information of the target examinee during answering;
wherein, after the target examinee passes the comparison of the basic identity information, the face recognition and the voice recognition are continuously carried out on the target examinee, the control module controls the front camera and the recording module to be started so as to obtain the face image information and the voice characteristic information used for verifying the target examinee, the face image information and the voice characteristic information used for verification are compared with the face image information and the voice characteristic information prestored in the examinee information base, if the information is consistent, a test paper is randomly distributed to the target examinee from the candidate test paper set,
during the examination of target examinee, control module random selection a plurality of moment control preceding camera is shot about target examinee's face picture, control back camera is about target examinee's shooting environment photo, control online examination end intercepting answer page synthesizes face picture, environment photo and the answer page of every moment, then covers the watermark and the screenshot saves, establishes the corresponding relation between time information and the watermark picture under every moment state, conveys after saving the examination management end.
Preferably, the online examination device further includes a GPS positioning module, and when acquiring the watermark picture at each time, the control module controls the GPS positioning module to position the target examinee, establishes a correspondence between the time information, the position information, and the watermark picture at each time state, and transmits the correspondence to the examination management terminal after storing the correspondence.
Preferably, the online examination device, wherein the examination management terminal includes a cloud database and a background terminal, the cloud database is in communication connection with the background terminal, the cloud database is used for prestoring the examinee information base and the examination paper base, and the background terminal is used for managing and monitoring the online examination.
The invention at least comprises the following beneficial effects:
1. the voice monitoring technology is utilized, the examination process is recorded, the text recognition technology is utilized to match the cheating keywords with the recording information, and whether the cheating phenomenon exists in the on-line examination process of the examinee can be automatically monitored.
2. The method of the invention can lead the examinee to select time and place to carry out the online examination according to the self arrangement, and compared with the traditional examination, the method saves examination resources.
3. When a target examinee logs in an online examination end, the method performs face recognition and voice recognition on the face image information and the voice characteristic information of the target examinee on the basis of verifying the basic identity information of the examinee, improves the tightness during examination logging, and ensures the logging identity of the target examinee.
4. The invention utilizes the five-fixed technology (the five-fixed technology is timing, fixed-point, person-fixing, fixed-time and fixed-scene photographing technology), and ensures the instantaneity, the authenticity and the effectiveness of the examination data.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
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FIG. 1 is a schematic flow chart in example 2 of the present invention;
fig. 2 is a schematic structural diagram of the device of the present invention.
Detailed Description
The present invention is further described in detail below with reference to the drawings and examples so that those skilled in the art can practice the invention with reference to the description.
The invention provides a voice monitoring online examination method, which comprises the following steps:
when a target examinee logs in an online examination end, acquiring an examination type according to login information, and acquiring a cheating keyword set based on the examination type; common cheating keywords (for example, the common cheating keywords in biological examinations may be 'protein', 'chromosome', etc.) corresponding to various examination types (for example, chemistry, biology, accounting, etc.) are collected in advance and stored; acquiring a cheating keyword set corresponding to an examination type according to the examination type filled in the examinee login information;
recording the answering site in the examination process, extracting the voice information in the recording information and converting the voice information into text information; the answering site can be recorded through the recording module, then the voice information in the recording information is extracted by utilizing a voice recognition technology, and then the voice information is converted into text information;
and matching the cheating keywords in the cheating keyword set with the text information in sequence, and determining whether to send a warning signal to an examination management terminal according to a matching result. Here, if the text information matches the vocabulary identical to the cheating keyword, a warning signal is sent to the test administration terminal. Or when the voice of a plurality of persons is identified in the recorded information, a warning signal can be sent to the examination management terminal. In the design, whether cheating occurs in the examination process of the target examinee can be automatically monitored, and follow-up measures can be taken according to the monitoring result.
The voice monitoring online examination method further comprises the following steps:
creating a test paper library, collecting a plurality of test papers and corresponding test paper answers and storing the test papers and the corresponding test paper answers in the test paper library;
and acquiring a corresponding candidate test paper set and corresponding test paper answers from the test paper library according to the test type of the target examinee, analyzing answer texts corresponding to the candidate test paper set, and acquiring the cheating keyword set. The specific method comprises the following steps: and acquiring a plurality of corresponding test papers according to the test type of the target examinee to form the candidate test paper set, and extracting keywords in the answer text by using a keyword extraction technology to form the cheating keyword set. The cheating keywords obtained according to the candidate test paper can obtain more accurate results when judging whether the cheating phenomenon exists or not.
The voice monitoring online examination method is characterized in that after the examination management terminal receives the warning signal, the recording information is called to be manually judged, and if the target examinee is judged to cheat, the examination system is closed. After the examination management personnel calls and consults the recording information, if the cheating content is absent in the recording information, the target examinee is judged to cheat.
The voice monitoring online examination method further comprises the following steps:
creating an examinee information base, collecting basic identity information of a target examinee and storing the basic identity information into the examinee information base;
when a target examinee logs in an online examination terminal, acquiring basic identity information input by the target examinee, comparing the basic identity information input by the target examinee with basic identity information prestored in the examinee information base, and randomly distributing a test paper from the candidate test paper set to the target examinee if the information is consistent;
the basic identity information of the examinee comprises the name, age, sex, identification card number and examination type of the examinee.
The method can facilitate the user to select reasonable time to take the examination at any time according to the self plan and arrangement. Corresponding to the implementation of the method, the online examination end can be arranged on the mobile terminal (such as a smart phone, a tablet computer or a notebook computer) in the form of an App, so that a user can log in the online examination end on the mobile terminal conveniently to complete an examination.
The voice monitoring online examination method further comprises the following steps:
collecting facial image information and sound characteristic information of a target examinee, and storing the facial image information and the sound characteristic information into the examinee information base;
if the target examinee passes the comparison of the basic identity information, carrying out face recognition and voice recognition on the target examinee, acquiring face image information and voice feature information for verifying the target examinee, comparing the face image information and the voice feature information for verification with face image information and voice feature information prestored in the examinee information base, and if the information is consistent, randomly distributing a test paper from the candidate test paper set to the target examinee;
and when the preset answering time is over or the target examinee selects to end the examination, generating an answer sheet and sending the answer sheet to the examination management terminal.
After the basic identity information is compared consistently, face recognition verification and voice recognition verification are continuously carried out on the target examinee, the safety of verifying the identity of the target examinee is enhanced, the target examinee is prevented from finding a person for taking an examination instead, and the possibility of cheating in the examination is further reduced.
The method of the present invention is described below in a specific embodiment.
Example 1
S110, firstly, an examinee information base and a test paper base are created, basic identity information, face image information and sound characteristic information of a target examinee are prestored in the examinee information base, and a plurality of test papers and corresponding answer texts are stored in the test paper base.
And S120, when the target examinee starts the online examination end and logs in, inputting basic identity information to perform login verification, comparing the basic identity information of the target examinee with the basic identity information of the examinee prestored in the examinee information base after the online examination end acquires the basic identity information of the target examinee, and sequentially comparing the name, the age, the sex, the identity card number and the examination type in the basic identity information of the examinee.
And S130, if the basic identity information is compared in a consistent manner, the online examination end performs face recognition verification and voice recognition verification on the target examinee, the specific method is to continuously acquire the face image information and the voice characteristic information of the target examinee and compare the face image information and the voice characteristic information with the face image information and the voice characteristic information of the examinee prestored in the examinee information base, and if the information comparison is consistent, the final verification of the target examinee login is completed. And then, obtaining a plurality of corresponding test papers from the test paper library according to the test type of the target examinee to form a candidate test paper set, and randomly distributing one test paper from the candidate test paper set to the target examinee, so that the target examinee can answer questions.
And S140, generating an answer sheet of the target examinee after the preset answer time is over or the target examinee selects to end the examination, and sending the answer sheet to the examination management terminal.
A part of the flow of the online test method has been described above. In order to automatically monitor whether the target examinee cheats during the examination process, after step S130, the method of the present invention further monitors the examination process of the target examinee by using a voice monitoring technology. The specific method comprises the following steps:
s131, after the test paper is distributed to a target examination, the online examination end begins to analyze answer texts corresponding to the candidate test paper set to obtain the cheating keyword set.
S132, during the answering period of the target examinee, recording is conducted on the answering site, the voice information in the recording information is extracted and converted into text information, the cheating keywords in the cheating keyword set are matched with the text information in sequence, and whether a warning signal is sent to the examination management terminal or not is determined according to the matching result.
S133, if the examination management terminal receives the warning signal according to the matching result, the recording information is called to judge whether the target examinee cheats, if the target examinee cheats, the examination system is closed, and if the target examinee does not cheat, the examination continues to be examined. And after receiving the warning signal, the examination management terminal calls the recording information to perform manual judgment. If the target examinee is judged not to cheat, allowing the target examinee to continue examination; and if the target examinee is judged to cheat, closing the online examination end.
Further, the invention also provides a voice monitoring online examination method based on the five technologies, which comprises the following steps:
randomly selecting a plurality of moments to obtain a face photo, an environment photo and an answer page of the target examinee during the answer period of the target examinee, synthesizing the face photo, the environment photo and the answer page of each moment, and then adding a watermark and storing the watermark in a screenshot manner;
when the watermark picture of each moment is obtained, the position of a target examinee is positioned, the corresponding relation among the time information, the position information and the watermark picture in each moment state is established, and a watermark picture containing the time information and the position information is generated;
after the preset answering time is over or the target examinee selects to end the examination, the answer sheet of the target examinee is generated, the watermark photos which correspond to a plurality of moments and contain time information and position information are stored together with the answer sheet, and the watermark photos are sent to the examination management terminal.
The method provided by the invention is different from the traditional examination method mainly in that all examinees are not organized in a specified examination room and are manually invigilated by examiners. In the online examination method described herein, the target examinee usually selects the examination location and the examination time according to his/her own schedule, and thus it is difficult to prevent cheating by manually proctoring the examination. It is necessary to use artificial intelligence techniques for monitoring. Specifically, during answering after a target examinee logs in an online examination end, a face photo, an environment photo and an answering page of the target examinee are obtained at random at a plurality of moments, the face photo and the environment photo can be shot through a camera of the mobile terminal, and the answering page can be automatically captured through the mobile terminal. And then synthesizing the acquired face photo, the environment photo and the answer page, adding a watermark, and storing the screenshot. In addition, when the watermark picture at each moment is acquired, the position of the target examinee is acquired through a positioning module on the mobile terminal. And finally, establishing a corresponding relation among the time information, the position information and the watermark picture in each moment state to generate the watermark picture containing the time information and the position information. And when the preset answer time is over or after the target examinee selects to end the examination, generating an answer sheet of the target examinee, storing the watermark photos containing the time information and the position information corresponding to a plurality of moments with the answer sheet, and sending the watermark photos and the answer sheet to the examination management terminal. Namely, the on-line examination of the target examinee is completed.
Referring to fig. 1, the method of online examination provided by the present invention will be described below by way of a more specific embodiment so that those skilled in the art can understand the present invention.
Example 2
S210, firstly, an examinee information base and a test paper base are created, wherein basic identity information, face image information and sound characteristic information of a target examinee are prestored in the examinee information base, and a plurality of test papers and corresponding answer texts are stored in the test paper base.
S220, when a target examinee starts the online examination end and logs in, basic identity information is input to carry out login verification, after the online examination end obtains the basic identity information of the target examinee, the basic identity information is compared with examinee basic identity information prestored in the examinee information base, and the name, the age, the sex, the identity card number and the examination type in the examinee basic identity information are sequentially compared.
And S230, if the basic identity information is compared in a consistent manner, the online examination end performs face recognition verification and voice recognition verification on the target examinee, specifically, the face image information and the voice feature information of the target examinee are continuously acquired and compared with face image information and voice feature information of the examinee prestored in an examinee information base, and if the information comparison is consistent, the final verification of the target examinee login is completed. And then, obtaining a plurality of corresponding test papers from the test paper library according to the test type of the target examinee to form a candidate test paper set, and randomly distributing one test paper from the candidate test paper set to the target examinee, so that the target examinee can answer questions.
S240, in order to realize invigilation in answering of the target examinee, during the answering of the target examinee, the online examination end randomly obtains a plurality of face pictures, environment pictures and answering pages of the target examinee at all times, synthesizes the face pictures, the environment pictures and the answering pages at all times, covers a watermark and captures and stores the pictures.
And S250, in addition, when the watermark picture at each moment is obtained, the position of the target examinee needs to be positioned, the corresponding relation among the time information, the position information and the watermark picture at each moment state is established, and the watermark picture containing the time information and the position information is generated.
And S260, generating an answer sheet of the target examinee after the preset answer time is over or the target examinee selects to end the examination, storing the watermark photo containing the time information and the position information together with the answer sheet, and sending the watermark photo and the answer sheet to the examination management terminal.
A part of the flow of the online test method has been described above. In order to automatically monitor whether the target examinee cheats in the examination process, after step S230, the method of the present invention further monitors the examination process of the target examinee by using a voice monitoring technology. The specific method comprises the following steps:
and S231, after the test paper is distributed to the target examination, the on-line examination end begins to analyze the answer text corresponding to the candidate test paper set to obtain the cheating keyword set.
S232, during the answering period of the target examinee, recording is conducted on the answering site, the voice information in the recording information is extracted and converted into text information, the cheating keywords in the cheating keyword set are matched with the text information in sequence, and whether a warning signal is sent to the examination management terminal or not is determined according to the matching result.
And S233, if the examination management terminal receives the warning signal according to the matching result, the recording information is called to judge whether the target examinee cheats, if the target examinee cheats, the examination system is closed, otherwise, the examination continues. And after receiving the warning signal, the examination management terminal calls the recording information to perform manual judgment. If the target examinee is judged not to cheat, allowing the target examinee to continue examination; and if the target examinee is judged to cheat, closing the online examination end.
The invention also provides a voice-monitored online examination device, which comprises:
and the examination management terminal 4 at least comprises a plurality of computer servers and is used for storing the examinee information base, the test paper base and the receiving and sending information.
The system comprises an online examination terminal 3, wherein the online examination terminal 3 is provided with a control module 303, an input module 301, a display module 302 and a recording module 307, and the control module 303 is in communication connection with an examination management terminal 4; the online test terminal 3 may be a mobile terminal such as a smart phone, a tablet computer, or other types of computer devices;
when a target examinee logs in the online examination terminal 3, the online examination terminal 3 calls the input module 301 and the display module 302 for the target examinee to input basic identity information and sends the received basic identity information of the examinee to the examination management terminal 4, the examination management terminal 4 compares the received basic identity information of the target examinee with the basic identity information prestored in the examinee information base, if the information comparison is consistent, a corresponding candidate test paper set is obtained from the test paper base according to the examination type, a test paper is randomly distributed from the candidate test paper set to the target examinee, in the answering process of the target examinee, the control module 303 controls the recording module 307 to start recording on the answering site, voice information in the recording information is extracted and converted into text information, and then cheating keywords in the cheating keyword set are sequentially matched with the text information, and determining whether to send out a warning signal to the examination management terminal 4 according to the matching result.
The voice-monitoring online examination device, wherein the online examination end 3 further comprises:
a front camera 305 for acquiring face image information for verifying a target examinee;
the rear camera 306 is used for acquiring the environmental photo information of the target examinee during answering;
after the target examinee passes the comparison of basic identity information, face recognition and voice recognition are continuously performed on the target examinee, the control module 303 controls the front camera 305 and the recording module 307 to be started to acquire face image information and sound characteristic information for verifying the target examinee, the face image information and the sound characteristic information for verification are compared with face image information and sound characteristic information prestored in the examinee information base, and if the information is consistent, a test paper is randomly distributed to the target examinee from the candidate test paper set;
during the examination of target examinee, control module 303 random selection a plurality of moment controls preceding camera 305 shoots the picture of face, control about target examinee back camera 306 shoots the shooting environment photo, control about target examinee online examination end 3 intercepting answer page synthesizes the picture of face, environment photo and the answer page of every moment, then covers the watermark and the screenshot saves, establishes the corresponding relation between time information and the watermark picture under every state of moment, conveys after saving to examination management end 4. The examination condition of the target examinee in the answering period is obtained, and the examination of the target examinee is convenient to examine whether the illegal examination phenomenon exists or not in the later period.
The voice-monitoring online examination device comprises an online examination terminal 3 and a control module 303, wherein the online examination terminal further comprises a GPS positioning module 308, when a watermark picture at each moment is obtained, the control module 303 controls the GPS positioning module 308 to position a target examinee, establishes a corresponding relationship among time information, position information and the watermark picture at each moment state, and transmits the time information, the position information and the watermark picture to the examination management terminal 4 after storage. And positioning the target examinee is realized.
The voice-monitoring online examination device comprises an examination management terminal 4, a cloud database 402 and a background terminal 401, wherein the cloud database 402 is in communication connection with the background terminal 401, the cloud database 402 is used for prestoring an examinee information base and an examination paper base, and the background terminal 401 is used for managing and monitoring online examinations. The examinee information base and the test paper base are pre-stored in the cloud database 402, so that the consumption of storage resources in the background terminal 401 can be reduced.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (10)
1. The voice monitoring online examination method is characterized by comprising the following steps:
when a target examinee logs in an online examination end, acquiring an examination type according to login information, and acquiring a cheating keyword set based on the examination type;
recording the answering site in the examination process, extracting the voice information in the recording information and converting the voice information into text information;
and matching the cheating keywords in the cheating keyword set with the text information in sequence, and determining whether to send a warning signal to an examination management terminal according to a matching result.
2. The voice-monitored online examination method of claim 1, further comprising:
creating a test paper library, collecting a plurality of test papers and corresponding test paper answers and storing the test papers and the corresponding test paper answers in the test paper library;
and acquiring a corresponding candidate test paper set and corresponding test paper answers from the test paper library according to the test type of the target examinee, analyzing answer texts corresponding to the candidate test paper set, and acquiring the cheating keyword set.
3. The voice-monitoring online examination method according to claim 1, wherein the examination management terminal calls the recorded information for manual judgment after receiving the warning signal, and shuts down the examination system if it is judged that the target examinee cheats.
4. The voice-monitored online examination method of claim 1, further comprising:
creating an examinee information base, collecting basic identity information of a target examinee and storing the basic identity information into the examinee information base;
when a target examinee logs in the online examination terminal, acquiring basic identity information input by the target examinee, comparing the basic identity information input by the target examinee with basic identity information prestored in the examinee information base, and if the information is consistent, randomly distributing a test paper from the candidate test paper set to the target examinee;
the basic identity information of the examinee comprises the name, age, sex, identity card number and the examination type of the examinee.
5. The voice-monitored online examination method of claim 4, further comprising:
collecting facial image information and sound characteristic information of a target examinee, and storing the facial image information and the sound characteristic information into the examinee information base;
if the target examinee passes the comparison of the basic identity information, carrying out face recognition and voice recognition on the target examinee, acquiring face image information and voice feature information for verifying the target examinee, comparing the face image information and the voice feature information for verification with face image information and voice feature information prestored in the examinee information base, and if the information is consistent, randomly distributing a test paper from the candidate test paper set to the target examinee;
and when the preset answering time is over or the target examinee selects to end the examination, generating an answer sheet and sending the answer sheet to the examination management terminal.
6. A voice-monitored on-line examination method based on penta-technology as claimed in claim 5, further comprising:
randomly selecting a plurality of moments to obtain a face photo, an environment photo and an answer page of the target examinee during the answer period of the target examinee, synthesizing the face photo, the environment photo and the answer page of each moment, and then adding a watermark and storing the watermark in a screenshot manner;
when the watermark picture of each moment is obtained, the position of a target examinee is positioned, the corresponding relation among the time information, the position information and the watermark picture in each moment state is established, and a watermark picture containing the time information and the position information is generated;
after the preset answering time is over or the target examinee selects to end the examination, an answer sheet is generated, watermark photos which correspond to a plurality of moments and contain time information and position information are stored together with the answer sheet and are sent to the examination management end.
7. An online examination device, comprising:
the examination management terminal is provided with the examinee information library and the examination paper library;
the system comprises an online examination terminal, a control module, an input module, a display module and a recording module, wherein the control module is in communication connection with an examination management terminal;
wherein, when the target examinee logs on the online examination terminal, the online examination terminal calls the input module and the display module to allow the target examinee to input basic identity information and sends the received basic identity information of the examinee to the examination management terminal, the examination management terminal compares the received basic identity information of the target examinee with the basic identity information prestored in the examinee information base, if the information comparison is consistent, randomly distributing a test paper from the candidate test paper set to the target examinee, in the examination process of the target examinee, the control module controls the recording module to open a field for recording answers, voice information in the recording information is extracted and converted into text information, cheating keywords in the cheating keyword set are matched with the text information in sequence, and whether a warning signal is sent out to the examination management terminal is determined according to a matching result.
8. The online testing device of claim 7, wherein the online testing terminal further comprises:
the front camera is used for acquiring face image information used for verifying the target examinee;
the rear camera is used for acquiring the environmental photo information of the target examinee during answering;
wherein, after the target examinee passes the comparison of the basic identity information, the face recognition and the voice recognition are continuously carried out on the target examinee, the control module controls the front camera and the recording module to be started so as to obtain the face image information and the voice characteristic information used for verifying the target examinee, the face image information and the voice characteristic information used for verification are compared with the face image information and the voice characteristic information prestored in the examinee information base, if the information is consistent, a test paper is randomly distributed to the target examinee from the candidate test paper set,
during the examination of target examinee, control module random selection a plurality of moment control preceding camera is shot about target examinee's face picture, control back camera is about target examinee's shooting environment photo, control online examination end intercepting answer page synthesizes face picture, environment photo and the answer page of every moment, then covers the watermark and the screenshot saves, establishes the corresponding relation between time information and the watermark picture under every moment state, conveys after saving the examination management end.
9. The online examination device according to claim 8, wherein the online examination terminal further comprises a GPS positioning module, and when acquiring the watermark picture at each time, the control module controls the GPS positioning module to position the target examinee, establishes a correspondence between the time information, the position information, and the watermark picture at each time, and transmits the correspondence to the examination management terminal after storing the correspondence.
10. The online examination device of claim 9, wherein the examination management terminal comprises a cloud database and a background terminal, the cloud database is in communication connection with the background terminal, the cloud database is used for prestoring the examinee information base and the examination paper base, and the background terminal is used for managing and monitoring online examinations.
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