CN114550106A - Examination monitoring method and device, examination computer and storage medium - Google Patents
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Abstract
The invention discloses an examination monitoring method and device, an examination computer and a storage medium, and belongs to the technical field of communication and computers. The method comprises the following steps: collecting at least one desktop answer page image; synthesizing the desktop answer page images into a video stream file, and uploading the video stream file to a video server; judging whether the examinee has abnormal operation or not based on the desktop answer page image; and if the examinee is detected to have abnormal operation, generating corresponding abnormal reminding information, uploading the abnormal reminding information to an invigilator, reminding the invigilator to check the video stream file of the corresponding examinee, and judging whether the cheating action exists in the corresponding examinee. When the system is used for monitoring a home examination, the computer desktop of the examinee is monitored in real time, a corresponding video file is generated to be called and checked by the invigilator at any time, and meanwhile, when abnormal operation of the examinee is monitored, abnormal reminding information can be generated in real time to remind the invigilator to call and check the video, so that cheating of the examinee can be effectively prevented.
Description
Technical Field
The invention relates to the technical field of communication and computers, in particular to an examination monitoring method and device, an examination computer and a storage medium.
Background
In the related art, when a home examination is performed, in order to prevent cheating of an examinee, invigilation is generally performed by using a camera shooting mode, for example, a computer camera is used for shooting face information of the examinee, a mobile phone camera is used for shooting environment information where the examinee is located, and the like.
However, in this way, on one hand, the computer camera cannot shoot the situation of the computer desktop, and on the other hand, the mobile phone camera is generally arranged at the oblique rear of the examinee, so that although the computer desktop can be shot, clear images and videos are difficult to obtain, and the invigilator is not helped much, so that the operation situation of the computer desktop is difficult to monitor at the present stage.
Disclosure of Invention
The invention mainly aims to provide an examination monitoring method and device, an examination computer and a storage medium, and aims to solve the technical problem that the operation condition of a computer desktop is difficult to monitor in the prior art.
According to a first aspect of the present invention, there is provided an examination monitoring method, the method comprising:
collecting at least one desktop answer page image in the virtual desktop monitoring space;
synthesizing at least one desktop answer page image into a video stream file, and uploading the video stream file to a video server;
judging whether the examinee has abnormal operation or not based on at least one desktop answer page image;
and if the abnormal operation of the examinee is detected, generating corresponding abnormal reminding information, uploading the abnormal reminding information to an invigilator, reminding the invigilator to check the video stream file of the corresponding examinee according to the abnormal reminding information, and judging whether the cheating action exists in the corresponding examinee.
Optionally, the synthesizing at least one desktop answer page image into a video stream file, and uploading the video stream file to a video server includes:
calling at least one desktop answer page image in the virtual desktop monitoring space, and packaging at least one desktop answer page image by using an flv format stream to obtain the video stream file;
and uploading the video stream file to a video server by utilizing an RTMP real-time transmission protocol.
Optionally, if it is detected that the examinee performs an abnormal operation, generating corresponding abnormal prompting information, and uploading the abnormal prompting information to an invigilator, so as to remind the invigilator to check a video stream file of the corresponding examinee according to the abnormal prompting information, and determine whether the cheating action exists in the corresponding examinee, including:
if the abnormal operation of the examinee is detected, corresponding abnormal reminding information is generated and uploaded to an invigilator, so that invigilator is reminded to perform video decoding on a video stream file of the corresponding examinee by using a decoder according to the abnormal reminding information to obtain a monitoring video of the corresponding examinee, and whether cheating behaviors exist in the corresponding examinee is judged according to the monitoring video.
Optionally, before acquiring at least one desktop answer page image in the virtual desktop monitoring space, the method further includes:
if an examination starting instruction is received, generating the virtual desktop monitoring space and acquiring the desktop answer page;
and linking the desktop answer page to the virtual desktop monitoring space so that the examinee takes an examination on the desktop answer page provided by the virtual desktop monitoring space.
Optionally, before acquiring at least one desktop answer page image in the virtual desktop monitoring space, the method further includes:
and if an examination starting instruction is received, the examination computer is subjected to full screen locking, and a communication tool and a hot key function of the examination computer are forbidden.
Optionally, before the receiving of the examination starting instruction, the full-screen locking of the examination computer is performed, and the communication tool and the hot key function of the examination computer are disabled, the method further includes:
receiving certificate information input by an examinee;
inquiring and displaying at least one piece of examination information corresponding to the certificate information so that the examinee can select target examination information;
after the examinee selects the target examination information, acquiring a face photo of the examinee;
according to the face photo and the certificate information, carrying out face verification on the examinee;
after the face verification is passed, executing the examination computer to perform full screen locking if the examination starting instruction is received, and forbidding a communication tool and a hot key function of the examination computer.
Optionally, the method further comprises:
receiving an environment monitoring video shot by a camera at a mobile phone end and/or a face monitoring video shot by a camera at a computer end, and uploading the environment monitoring video and/or the face monitoring video to a video server;
if receiving the abnormal reminding information sent by the mobile phone end, uploading the abnormal reminding information sent by the mobile phone end to the invigilator end so as to remind the invigilator to call the environment monitoring video of the corresponding examinee and judge whether the corresponding examinee has cheating behaviors and/or whether the corresponding examinee has cheating behaviors
And if the abnormal reminding information sent by the computer terminal is received, uploading the abnormal reminding information sent by the computer terminal to the invigilator terminal so as to remind the invigilator to call the face monitoring video of the corresponding examinee and judge whether the corresponding examinee has cheating behaviors.
According to a second aspect of the present invention there is provided an examination monitoring device, the device comprising:
the image acquisition module is used for acquiring at least one desktop answer page image in the virtual desktop monitoring space;
the video generation module is used for synthesizing at least one desktop answer page image into a video stream file and uploading the video stream file to a video server;
the abnormity monitoring module is used for judging whether the examinee has abnormal operation or not based on at least one desktop answer page image;
and the invigilating judgment module is used for generating corresponding abnormal reminding information if detecting that the examinee operates abnormally, and uploading the abnormal reminding information to the invigilating terminal so as to remind the invigilating personnel to check the video stream file of the corresponding examinee according to the abnormal reminding information and judge whether the cheating action exists in the corresponding examinee.
According to a third aspect of the present invention, there is provided an examination computer comprising: a memory, a processor and an examination monitoring program stored on the memory and executable on the processor, the examination monitoring program when executed by the processor implementing the steps as set forth in any one of the possible implementations of the first aspect.
According to a fourth aspect of the present invention, there is provided a computer readable storage medium having stored thereon an examination monitoring program which, when executed by a processor, carries out the steps described in any one of the possible implementations of the first aspect.
The embodiment of the invention provides an examination monitoring method, device, equipment and storage medium, wherein at least one desktop answer page image is collected in a virtual desktop monitoring space through an examination computer; synthesizing at least one desktop answer page image into a video stream file, and uploading the video stream file to a video server; judging whether the examinee has abnormal operation or not based on at least one desktop answer page image; and if the abnormal operation of the examinee is detected, generating corresponding abnormal reminding information, uploading the abnormal reminding information to an invigilator, reminding the invigilator to check the video stream file of the corresponding examinee according to the abnormal reminding information, and judging whether the cheating action exists in the corresponding examinee.
The invention monitors the computer desktop of the examinee in real time when the home examination is monitored, namely, the picture of the computer desktop is monitored in real time after the system is logged in, the operation condition of the examinee is recorded, and a corresponding monitoring video is generated to be called and checked by the invigilator at any time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic diagram of an examination computer in a hardware operating environment according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a first embodiment of an examination monitoring method according to the present invention;
FIG. 3 is a detailed flowchart of the step S202 in FIG. 2 according to the present invention;
FIG. 4 is a flowchart illustrating a process before step S201 in FIG. 2 according to the present invention;
FIG. 5 is a flowchart illustrating a step of S403 in FIG. 4 according to the present invention;
fig. 6 is a flowchart illustrating a second embodiment of the test monitoring method according to the present invention;
fig. 7 is a functional block diagram of an examination monitoring apparatus according to an embodiment of the present invention;
fig. 8-10 are screenshots of the real-time operation interface involved in the embodiment of the examination monitoring method of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The main solution of the embodiment of the invention is as follows: collecting a plurality of desktop answer page images; synthesizing the plurality of desktop answer page images into a video stream file, and uploading the video stream file to a video server; judging whether the examinee has abnormal operation or not based on the plurality of desktop answer page images; and if the abnormal operation of the examinee is detected, generating corresponding abnormal reminding information, uploading the abnormal reminding information to an invigilator, reminding the invigilator to check the video stream file of the corresponding examinee according to the abnormal reminding information, and judging whether the cheating action exists in the corresponding examinee.
In the related art, when a home examination is performed, in order to prevent cheating of an examinee, invigilation is generally performed by taking pictures with a camera, for example, taking pictures of face information of the examinee with a computer camera and taking pictures of environment information where the examinee is located with a mobile phone camera. However, in this way, on one hand, the computer camera cannot shoot the computer desktop, and on the other hand, the mobile phone camera is generally arranged at the oblique rear of the examinee, so that although the computer desktop may be shot, clear images and videos are difficult to obtain, and the invigilator is not helped much, so that the operation condition of the computer desktop is difficult to monitor at the present stage.
The invention provides a solution, which is used for an examination computer, when the home examination monitoring is carried out, the computer desktop of an examinee is monitored in real time, a corresponding monitoring video is generated to be called and checked by an invigilator at any time, meanwhile, when abnormal operation of the examinee is monitored, abnormal reminding information can be generated in real time to remind the invigilator to call and check the monitoring video, so that cheating of the examinee can be effectively prevented, the invigilator does not need to monitor all persons in real time, only needs to check the corresponding examinee when receiving the abnormal reminding, and the burden of the invigilator can be effectively reduced.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all 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 invention.
Where "first" and "second" are used in the description of embodiments of the invention to distinguish between similar elements and not necessarily to describe a particular order or sequence, it is to be understood that such data may be interchanged under appropriate circumstances such that the embodiments described herein may be implemented in other sequences than those illustrated or described herein.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an examination computer in a hardware operating environment according to an embodiment of the present invention.
As shown in fig. 1, the examination computer may include: a processor 1001, such as a Central Processing Unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used to implement connection communication among these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a WIreless interface (e.g., a WIreless-FIdelity (WI-FI) interface). The Memory 1005 may be a Random Access Memory (RAM) or a Non-Volatile Memory (NVM), such as a disk Memory. The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the configuration shown in figure 1 does not constitute a limitation of the testing computer and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, the memory 1005, which is a storage medium, may include an operating system, an image capturing module, a video generating module, an examination monitoring module, and an examination monitoring program, wherein the examination monitoring module may be further refined into an abnormality monitoring module and an invigilation judging module.
In the testing computer shown in fig. 1, the network interface 1004 is primarily used for data communication with a network server; the user interface 1003 is mainly used for data interaction with a user; the processor 1001 and the memory 1005 of the examination computer according to the present invention may be disposed in the examination computer, and the examination computer calls the examination monitoring program stored in the memory 1005 through the processor 1001 and executes the examination monitoring method according to the embodiment of the present invention.
Based on the above hardware structure but not limited to the above hardware structure, the present invention provides a first embodiment of an examination monitoring method. Referring to fig. 2, fig. 2 is a flowchart illustrating a first embodiment of the examination monitoring method according to the present invention.
In this embodiment, the method includes:
step S201, collecting at least one desktop answer page image in the virtual desktop monitoring space;
in this embodiment, the executing subject is an examination computer, and the device may be a PC personal computer or a dedicated examination computer, in which a desktop plug-flow program module is installed in advance, where the desktop plug-flow program module is mainly used to provide a virtual desktop monitoring space during an examination so as to facilitate real-time monitoring of a desktop of a computer for performing the examination in the following process, where the desktop plug-flow program module is a middleware, and a detailed process will be described below.
In the specific implementation process, in order to monitor the desktop of the examination computer in real time under the condition of the home examination, a monitoring video of the desktop of the examination computer needs to be obtained, but the video can be directly recorded by a camera, in this embodiment, the video can be synthesized through images, so that firstly, at least one desktop answer page image needs to be collected, as shown in fig. 8, specific examination questions can be displayed on the desktop answer page image, and it can be understood that information of the answering records, the answering process and the like of the corresponding examinees aiming at the examination questions can be correspondingly displayed on the desktop answer page image, for example, for the selected question area shown in fig. 8, after the examinees select corresponding options, the page can also be displayed in real time in a red or tick mark mode or the like of the corresponding options, that is, what kind of operation the examinee has done, the desktop page of the examinee's examination computer and the monitoring page of the invigilator end both respond in real time and display corresponding operation in real time, then acquire images and generate videos, so that the complete examination process of the examinee can be viewed when generating videos, thereby helping the invigilator to monitor, it can be understood that since the operation of the examinee is mainly concentrated in the answer area, fig. 8 only shows the image of the answer area for explanation, but does not show the question stem area, namely the question portion, but the question stem area can also be displayed in the page. Of course, the selected question is only used as an example for explanation here, and the image that can be monitored and displayed is determined according to the actual situation, for example, the image may also be a text expression of a simple answer question, or a calculation process of a calculation question, and the like.
Specifically, the desktop plug-flow program module pre-configured by the examination computer further includes an image acquisition module, the image acquisition module runs a program code which is designed independently, and runs in a manner of being matched with the whole invigilation system related in this embodiment, and the image acquisition module can acquire an image of the desktop of the examination computer according to a preset frame rate and a preset code rate to obtain at least one desktop answer page image. The code rate is the bit rate, which refers to the number of bits transmitted or decoded in unit time, and the higher the code rate is, the higher the quality and definition of the video obtained by subsequent synthesis are; the frame rate refers to how many frames move every second during playing, and the higher the frame rate is, the better the fluency of the video obtained by subsequent synthesis is. Of course, the specific parameter setting is mainly determined based on the code setting of the module itself and the actual requirement of the user, which is not limited in this embodiment. It should be noted that, in the actual image acquisition process, this example is different from the conventional acquisition and storage manner: locally storing the acquired image, and performing subsequent processing locally; in the embodiment, the temporary storage of the image is performed through the virtual storage space provided by the virtual desktop monitoring space, and it can be understood that the virtual storage space is different from the actual local storage (computer memory), which provides only a temporary storage space during the test, and after the test is finished, as the desktop plug-flow program module stops running, the virtual desktop monitoring space will also disappear, the temporary and virtual storage space does not exist, so the local storage space in this embodiment only plays a role of temporary storage, the main video synthesis process is completed by using the virtual storage space provided by the virtual desktop monitoring space, after the video synthesis is completed, the local cache can be cleaned immediately, so that the embodiment does not occupy the local storage space, and the storage resource is saved.
Step S202, synthesizing at least one desktop answer page image into a video stream file, and uploading the video stream file to a video server;
as described above, in this embodiment, the monitoring video for the desktop of the examination computer is obtained by image synthesis, so that after the certain number of desktop answer page images are collected, the images can be used to synthesize a corresponding video stream file, and then the video stream file is uploaded to a video server for storage, so as to be retrieved and viewed subsequently.
Specifically, the desktop plug-flow program module pre-configured by the examination computer further includes a video composition module, and the module can fetch the acquired desktop answer page image from the local, process and compose the acquired desktop answer page image according to a certain preset composition rule in the virtual desktop monitoring space, upload the synthesized video stream file to the video server at regular time, and clear the acquired image after obtaining the video stream file to release the local storage space. It should be noted that the video synthesis and uploading process in this embodiment is a segmented synthesis and timed uploading process, that is, in this embodiment, after the images of the whole examination process are collected, the images are synthesized together when the examination is finished, but according to the program setting, the images are collected and synthesized at a certain timing, and then the synthesized video is uploaded. Meanwhile, due to the fact that image acquisition and video uploading can be carried out in real time, when abnormal operation of the examinee occurs in follow-up monitoring, the corresponding video can be called in real time to be checked, the whole monitoring video does not need to be checked after the examination is finished, on one hand, the workload of invigilators is reduced, and on the other hand, the efficiency and the instantaneity for judging whether cheating behaviors exist in the examinee are also improved.
In a specific embodiment, referring to fig. 3, fig. 3 is a schematic detailed flowchart of the step S202 in fig. 2, the synthesizing at least one image of the desktop answer page into a video stream file, and uploading the video stream file to a video server includes:
step A10, calling at least one desktop answer page image in the virtual desktop monitoring space, and packaging at least one desktop answer page image by using flv format stream to obtain the video stream file;
as described above, the synthesis of the desktop answer page image is performed based on a certain preset synthesis rule in the desktop virtual monitoring space by using the video synthesis module, so that the answer condition of the examinee can be monitored in real time, and the storage resource can be saved. Specifically, in this embodiment, the multiple desktop answer page images may be packaged into a video stream file of live video frame data by using a flv format stream packaging format. The flash format stream is a new video format, is called as flash video, and the file formed by the format is extremely small and has extremely high loading speed, so that on one hand, the memory space can be saved, and particularly in a large-scale examination, reference examinees are likely to be many, and thus the resource space can be effectively saved; on the other hand, the video loading speed can be obviously improved, and the situations of overlong response time, blocking and the like are effectively avoided, so that the real-time monitoring on the desktop operation condition of the examinee computer is realized.
And A20, uploading the video stream file to a video server by using an RTMP real-time transmission protocol.
And after the video stream file is obtained, uploading the video stream file to a video server in real time so as to be called and viewed at any time later. Specifically, in the present embodiment, in the desktop virtual monitoring space, an RTMP real-time transport protocol is adopted, and the video stream file is periodically uploaded to the video server through the desktop stream pushing program module. The RTMP (real Time Messaging protocol) is a network protocol for real-Time data communication, and is mainly used for audio-video and data communication between a Flash/AIR platform and a streaming media/interaction server supporting the RTMP protocol, and flv or f4v format stream is generally transmitted, so that a video stream file obtained by adopting flv format stream encapsulation can be transmitted in real Time, the video stream file can be ensured to be instantly uploaded to a video server for viewing, and the real-Time monitoring of the desktop operation condition of an examinee computer is realized.
Step S203, judging whether the examinee has abnormal operation or not based on at least one desktop answer page image;
after the desktop answer page images are collected, on one hand, the images are synthesized into corresponding video stream files (refer to the step S202 and the related description); on the other hand, whether the examinee has abnormal operation or not can be judged based on the images. Specifically, the desktop plug-flow program module can provide a virtual desktop monitoring space during examination, and in the virtual desktop monitoring space, the screen of the computer of the examinee is locked, so that under normal conditions, the computer page of the examinee can only display an answer page in the examination process, and based on this, if other pages which are not matched with the answer page are detected in the acquired desktop answer page image, the examinee can be judged to have abnormal operation; furthermore, in the examination process, not only the screen is locked, but also all communication software, functional hot keys and the like installed or configured in the computer are forbidden, so that if the communication software, the functional hot keys and the like are found to be running in the background in the desktop answer page image, even if the computer desktop of the examinee displays an answer page, the examinee can be judged to have abnormal operation.
And step S204, if the examinee is detected to have abnormal operation, generating corresponding abnormal reminding information, uploading the abnormal reminding information to an invigilator, reminding the invigilator to check the video stream file of the corresponding examinee according to the abnormal reminding information, and judging whether the cheating action exists in the corresponding examinee.
If abnormal operation of the examinee is monitored, corresponding abnormal reminding information can be generated to remind the invigilator to check and confirm in order to further determine whether the examinee really has cheating behaviors. Specifically, referring to fig. 9, an examination image of an examinee can be displayed on an examination page provided by an examination terminal, wherein the examination image includes a desktop monitoring image of the examinee, when an abnormal operation of an examinee, such as the examinee a, is detected, corresponding abnormal prompting information can be generated and sent to the examination terminal, the examination terminal receives the abnormal prompting information and determines that the desktop monitoring of the examinee a is abnormal when the abnormal prompting information corresponds to the abnormal prompting information, then the monitoring image part of the examinee a in the monitoring page is marked by a frame, and a text prompt, such as "facial occlusion exists" or "current state is abnormal", is matched in the frame, after the examination person sees the prompting information on the examination page, the examination person can click a playing button of the desktop monitoring video of the examinee a, and then a background calls a video stream file (i.e., the synthesized video stream file) of the examinee a from a video server, the video stream file is decoded by a decoder, and finally the video stream file can be played at the right end of the invigilator page, so that the invigilator can determine whether the examinee A has cheating behaviors according to the played monitoring video, and it should be clear that fig. 9 only shows the examination images of a certain examinee exemplarily, and the whole page can show the examination images of all examinees in practical application.
It can be understood that invigilates the personnel of examining and need not to look at every student's surveillance video constantly in fact and see, only need when seeing that the prompt message appears on invigilating the page, the replay corresponds examinee's surveillance video can, so can alleviate invigilates personnel's burden greatly, simultaneously, because invigilates personnel own energy is limited, the condition such as the attention is not concentrated probably appears, and also hardly accomplish to look over all examinees simultaneously, so can also in time remind invigilates the personnel of examining through the mode of unusual warning, avoid appearing loudly.
Certainly, in the whole examination process, when abnormal reminding does not occur, the invigilator can also actively play the monitoring video of any examinee for random spot check; after the examination is finished, the invigilator can randomly call the monitoring videos of some examinees for reexamination, so that the flexibility and the accuracy of the invigilation process are improved.
Finally, it should be added that, as shown in fig. 10, the invigilation page can display various examination-related information in addition to the monitoring screen and the abnormality reminding information of each examinee in real time, and the invigilator or administrator can perform relevant operations such as examination configuration. For example, at the far left of the invigilation page are a series of management and configuration options by which the relevant personnel can complete: various configurations before examination, such as time arrangement, photo review, subject distribution and the like; in addition, the options which are not shown in the figure but can be included are invigilation monitoring in the examination, such as examination monitoring, examination question answering details of examinees and the like can be called at any time; related work after examination, such as examination reading and the like, can be completed before examination, after examination and various work after examination through a unified invigilation system, and helps invigilates smoothly to complete remote home invigilation and examination reading. Particularly, in the picture shown in fig. 10, the corresponding examinee has a violation, that is, the frontal image of the examinee cannot be seen through the computer camera, and referring to the description about fig. 9, the area corresponding to the examinee is marked by the frame, and a specific violation condition, that is, "not facing the examination interface" in the figure can be displayed, so that the invigilator can view the corresponding monitoring video, and remind the examinee to correct the violation behavior according to the actual situation or directly determine that the examinee has a cheating behavior. Therefore, the method and the system matched with the method can monitor various behaviors of the examinee in real time and remind the examinee even when the abnormal behaviors occur, so that the workload of the invigilator in the examination process is greatly reduced, and meanwhile, the invigilator can be helped to quickly determine the examinee with the abnormal behaviors.
In this embodiment, can carry out real time monitoring to examinee's computer desktop when carrying out house examination control, and upload the surveillance video that generates in real time, simultaneously, when monitoring that the examinee has unusual operation, can also generate unusual warning information in real time and remind invigilator, consequently invigilator need not to look at all people constantly and invigilate, invigilator's burden has been alleviateed greatly, invigilator sees unusual warning at any time, all can look over the desktop surveillance video that corresponds the examinee immediately, compare in the face shooting and the environment shooting of computer camera and cell-phone camera, this embodiment can make invigilator look over examinee's specific operation at any time, thereby help invigilator's more accurate judgement this examinee whether has the action of cheating.
Further, as an embodiment, referring to fig. 4, fig. 4 is a schematic flowchart of a process before the step of S201 in fig. 2, where before the step of collecting at least one desktop answer page image in the virtual desktop monitoring space, the method further includes:
step S401, if an examination starting instruction is received, generating the virtual desktop monitoring space and acquiring the desktop answer page;
step S402, linking the desktop answer page to the virtual desktop monitoring space so that the examinee takes an examination on the desktop answer page provided by the virtual desktop monitoring space;
as described above, the desktop plug-flow program module pre-installed in the computer of the examinee can provide a virtual desktop monitoring space during examination, specifically, when a start instruction is received, the desktop plug-flow program module can generate the virtual desktop monitoring space, and simultaneously, a desktop answer page can be obtained from the client of the CS version of the online examination, the desktop answer page includes examination questions and related information, and then, the desktop answer page is linked to the virtual desktop monitoring space, so that the examinee can start examination answer. It can be understood that, under normal conditions, only the desktop answer page can be displayed in the virtual desktop monitoring space, and other pages are shielded, so that cheating of the examinee can be effectively prevented, and in the examination process, the image acquisition module can be used for acquiring a plurality of images of the desktop answer page at a certain frame rate in the virtual desktop monitoring space and then processing the images to form a video stream file and pushing the video stream file to a video server, wherein the video stream file is used for monitoring and recording the operation condition of the examinee on the desktop picture of the computer end in real time. The online examination CS version client, namely the invigilator, displays whether to execute examination starting prompt on an interface before the examination starts, generates and sends an examination starting instruction after the invigilator confirms the prompt, and in addition, a desktop answer page, namely the examination questions related to the desktop answer page are uploaded by relevant personnel such as a question teacher and the like in advance.
Step S403, if an examination starting instruction is received, the examination computer is subjected to full screen locking, and a communication tool and a hot key function of the examination computer are forbidden.
After receiving an instruction for starting an examination, the examination computer can start a full screen lock screen while displaying the desktop answer page, so that the desktop of the computer can only display the desktop answer page, and the examination computer can disable all communication tools such as QQ, WeChat, nailing and the like, all remote tools such as sunflower, Teamview and the like, and all hot key functions such as shortcut keys, combination keys and the like which are irrelevant to the examination, thereby effectively preventing cheating of examinees.
In the embodiment, the examination computer is subjected to full screen locking and various tools and functions are forbidden, and all other operations irrelevant to the examination are forbidden, so that cheating of examinees can be effectively prevented.
Further, as an embodiment, referring to fig. 5, fig. 5 is a flowchart illustrating the process before the step of S403 in fig. 4 in the present invention, where if an instruction to start an examination is received, before the full screen locking is performed on the examination computer and the communication tool and the hot key function of the examination computer are disabled, the method further includes:
step S501, receiving certificate information input by an examinee;
step S502, inquiring and displaying at least one piece of examination information corresponding to the certificate information so as to enable an examinee to select target examination information;
before the examination is formal, various information of the examinee is required to be verified. Specifically, when an examinee logs in, the examinee needs to input certificate information such as an admission card number, an identity card number and the like on a login interface, and then after the information is verified to be correct, the background can inquire the examination information of the examinee and display the examination information on the interface.
Step S503, after the examinee selects the target examination information, a face photo of the examinee is obtained;
step S504, according to the face photo and the certificate information, carrying out face verification on the examinee;
after the examination information is selected, whether a camera with a normal function is configured in an examination computer or not can be detected, whether the information uploaded by an examinee comprises a face photo or not is detected, if no face photo exists, the face photo is photographed and uploaded, and then the face photo is verified by utilizing a database, so that the identity information of the examinee is verified; if the face photo exists, the verification can be directly carried out, and if the face photo fails, the database information verification is carried out again.
In addition, the interface can also provide two-dimensional codes for the mobile phone end to scan and then enter a camera of the mobile phone end for monitoring, so that the follow-up auxiliary monitoring of the mobile phone end is facilitated.
And step S505, after the face verification is passed, executing the full screen locking of the examination computer if the examination starting instruction is received, and forbidding the communication tool and the hot key function of the examination computer.
After all the verification before the examination is finished, the examination main program can be entered, and the examination is carried out after waiting for an examination starting instruction. During waiting, the examinee can also check relevant information such as examination advice and operation instructions.
In the embodiment, the examinee is subjected to information confirmation and face verification before the examination, so that the examinee can be helped to correctly take the examination, and cheating behaviors such as taking-in-place examinations and the like are avoided.
Further, on the basis of the above embodiment, a camera at a computer end and/or a mobile phone end may also be used to perform auxiliary monitoring on an examination process, specifically, as an embodiment, referring to fig. 6, fig. 6 is a schematic flow diagram of a second embodiment of the examination monitoring method of the present invention, where the method further includes:
step S601, receiving an environment monitoring video shot by a camera at a mobile phone end and/or a face monitoring video shot by a camera at a computer end, and uploading the environment monitoring video and the face monitoring video to a video server;
in order to monitor the examination process of the examinee more comprehensively from multiple angles so as to improve the accuracy of judging whether the examinee has cheating behaviors, the embodiment can also utilize the camera at the mobile phone end to monitor the environment condition of the examinee and/or utilize the camera at the computer end to monitor the facial features of the examinee on the basis of monitoring the desktop of the examination computer. Specifically, the camera at the mobile phone end enters a monitoring mode after the two-dimensional code is scanned, and the mobile phone can be arranged at a position which is 45 degrees behind the examinee in an inclined manner and is 0.8m-1.2m away from the examinee, so that the environmental conditions of the examinee, such as decibel values, whether other people appear and the like, can be monitored in real time; and the computer-side camera is started after completing the series of information confirmation before examination and verification before examination, and is arranged right in front of the face of the examinee, so that the facial features of the examinee, such as whether a plurality of faces or no face appears, are monitored in real time. Wherein, if the computer is not provided with an available camera, an external USB camera can be used for monitoring.
Step S602, if receiving abnormal reminding information sent by a mobile phone terminal, uploading the abnormal reminding information sent by the mobile phone terminal to an invigilator terminal to remind the invigilator to call an environment monitoring video of a corresponding examinee and judge whether the corresponding examinee has cheating behaviors;
step S603, if the abnormal reminding information sent by the computer terminal is received, the abnormal reminding information sent by the computer terminal is uploaded to the invigilator terminal to remind the invigilator to call the face monitoring video of the corresponding examinee, and whether the cheating behavior exists in the corresponding examinee is judged.
When the mobile phone end monitors that the decibel value of the environment where the examinee is located is too large or other people and other abnormal conditions occur in the scene and/or when the computer end monitors that the object face, the faces or the face information is not matched with the examinee information occurs in the picture, the mobile phone end and/or the computer end can generate corresponding abnormal reminding information and send the abnormal reminding information to the invigilator so as to remind the invigilator to check the corresponding monitoring video and judge whether cheating behaviors exist in the corresponding examinee. The specific operation flow of the invigilator, i.e. the invigilator, is basically the same as the above, and is not described herein again.
In this embodiment, on the basis of monitoring examination computer desktop, through the supplementary control of cell-phone end and/or computer end, can monitor the examination process from the multi-angle to help invigilator carries out more comprehensive invigilation, and then improves the accuracy of judging whether the examinee has the action of practising fraud.
Based on the same inventive concept, an embodiment of the present invention further provides an examination monitoring apparatus, which is shown in fig. 7 and includes:
the image acquisition module is used for acquiring a plurality of desktop answer page images;
the video generation module is used for synthesizing the desktop answer page images into a video stream file and uploading the video stream file to a video server;
the abnormity monitoring module is used for judging whether the examinee has abnormal operation or not based on the plurality of desktop answer page images;
and the invigilating judgment module is used for generating corresponding abnormal reminding information if detecting that the examinee operates abnormally, and uploading the abnormal reminding information to the invigilating terminal so as to remind the invigilating personnel to check the video stream file of the corresponding examinee according to the abnormal reminding information and judge whether the cheating action exists in the corresponding examinee.
Furthermore, in an embodiment, the present application further provides a computer storage medium having a computer program stored thereon, where the computer program is executed by a processor to implement the steps of the method in the foregoing method embodiments.
In some embodiments, the computer-readable storage medium may be memory such as FRAM, ROM, PROM, EPROM, EEPROM, flash, magnetic surface memory, optical disk, or CD-ROM; or may be various devices including one or any combination of the above memories. The computer may be a variety of computing devices including intelligent terminals and servers.
In some embodiments, executable instructions may be written in any form of programming language (including compiled or interpreted languages), in the form of programs, software modules, scripts or code, and may be deployed in any form, including as a stand-alone program or as a module, component, subroutine, or other unit suitable for use in a computing environment.
By way of example, executable instructions may correspond, but do not necessarily have to correspond, to files in a file system, may be stored in a portion of a file that holds other programs or data, e.g., in one or more scripts in a hypertext Markup Language (HTML) document, in a single file dedicated to the program in question, or in multiple coordinated files (e.g., files that store one or more modules, sub-programs, or portions of code).
By way of example, executable instructions may be deployed to be executed on one computing device or on multiple computing devices at one site or distributed across multiple sites and interconnected by a communication network.
The above description is only a preferred 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, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. An examination monitoring method is characterized in that the examination monitoring method is used for an examination computer, a desktop plug-flow program module is pre-configured in the examination computer, the desktop plug-flow program module is used for providing a virtual desktop monitoring space in an examination process and connecting the virtual desktop monitoring space with an examination client, the virtual desktop monitoring space is used for displaying a desktop answer page acquired from the examination client so as to enable an examinee to answer questions, and examination monitoring is carried out based on the desktop answer page image when an examination is carried out, and the method comprises the following steps:
collecting at least one desktop answer page image in the virtual desktop monitoring space;
synthesizing at least one desktop answer page image into a video stream file, and uploading the video stream file to a video server;
judging whether the examinee has abnormal operation or not based on at least one desktop answer page image;
and if the abnormal operation of the examinee is detected, generating corresponding abnormal reminding information, uploading the abnormal reminding information to an invigilator, reminding the invigilator to check the video stream file of the corresponding examinee according to the abnormal reminding information, and judging whether the cheating action exists in the corresponding examinee.
2. The method according to claim 1, wherein the synthesizing at least one image of the desktop answer page into a video stream file and uploading the video stream file to a video server comprises:
calling at least one desktop answer page image in the virtual desktop monitoring space, and packaging at least one desktop answer page image by using an flv format stream to obtain the video stream file;
and uploading the video stream file to a video server by utilizing an RTMP real-time transmission protocol.
3. The method of claim 1, wherein if it is detected that the examinee performs an abnormal operation, generating corresponding abnormal reminding information, and uploading the abnormal reminding information to an invigilator, so as to remind the invigilator to check a video stream file of the corresponding examinee according to the abnormal reminding information, and determine whether the corresponding examinee has cheating behaviors, comprising:
if the abnormal operation of the examinee is detected, corresponding abnormal reminding information is generated and uploaded to an invigilator, so that invigilators are reminded to perform video decoding on a video stream file of the corresponding examinee according to the abnormal reminding information to obtain a monitoring video of the corresponding examinee, and whether cheating behaviors exist in the corresponding examinee is judged according to the monitoring video.
4. The method of claim 1, wherein before the capturing at least one image of the desktop answer page in the virtual desktop monitoring space, the method further comprises:
if an examination starting instruction is received, generating the virtual desktop monitoring space and acquiring the desktop answer page;
and linking the desktop answer page to the virtual desktop monitoring space so that the examinee takes an examination on the desktop answer page provided by the virtual desktop monitoring space.
5. The method of claim 4, wherein before the capturing of the at least one image of the desktop answer page in the virtual desktop monitoring space, the method further comprises:
and if an examination starting instruction is received, the examination computer is subjected to full screen locking, and a communication tool and a hot key function of the examination computer are forbidden.
6. The method of claim 5, wherein before the examination computer is full screen locked and the communication tool and the hot key function of the examination computer are disabled if the examination starting instruction is received, the method further comprises:
receiving certificate information input by an examinee;
inquiring and displaying at least one piece of examination information corresponding to the certificate information so that the examinee can select target examination information;
after the examinee selects the target examination information, acquiring a face photo of the examinee;
according to the face photo and the certificate information, carrying out face verification on the examinee;
after the face verification is passed, executing the examination computer to perform full screen locking if the examination starting instruction is received, and forbidding a communication tool and a hot key function of the examination computer.
7. The method according to any one of claims 1-6, further comprising:
receiving an environment monitoring video shot by a camera at a mobile phone end and/or a face monitoring video shot by a camera at a computer end, and uploading the environment monitoring video and/or the face monitoring video to a video server;
if receiving the abnormal reminding information sent by the mobile phone end, uploading the abnormal reminding information sent by the mobile phone end to the invigilator end so as to remind the invigilator to call the environment monitoring video of the corresponding examinee and judge whether the corresponding examinee has cheating behaviors and/or whether the corresponding examinee has cheating behaviors
And if the abnormal reminding information sent by the computer terminal is received, uploading the abnormal reminding information sent by the computer terminal to the invigilator terminal so as to remind the invigilator to call the face monitoring video of the corresponding examinee and judge whether the corresponding examinee has cheating behaviors.
8. An examination monitoring device, characterized in that, dispose in the examination computer, dispose desktop plug-flow program module in advance in the examination computer, the desktop plug-flow program module is used for providing virtual desktop control space in the examination process, and will virtual desktop control space is connected with examination client, virtual desktop control space is used for showing from the desktop answer page that the examination client acquireed so that the examinee answers the question to when carrying out the examination carry out the examination based on desktop answer page image and monitor, the device includes:
the image acquisition module is used for acquiring at least one desktop answer page image in the virtual desktop monitoring space;
the video generation module is used for synthesizing at least one desktop answer page image into a video stream file and uploading the video stream file to a video server;
the abnormity monitoring module is used for judging whether the examinee has abnormal operation or not based on at least one desktop answer page image;
and the invigilating judgment module is used for generating corresponding abnormal reminding information if detecting that the examinee operates abnormally, and uploading the abnormal reminding information to the invigilating terminal so as to remind the invigilating personnel to check the video stream file of the corresponding examinee according to the abnormal reminding information and judge whether the cheating action exists in the corresponding examinee.
9. An examination computer comprising a memory, a processor and an examination monitoring program stored on the memory and executable on the processor, the examination monitoring program when executed by the processor implementing the steps of the examination monitoring method as claimed in any one of claims 1 to 7.
10. A computer readable storage medium having stored thereon an examination monitoring program which, when executed by a processor, carries out the steps of the examination monitoring method according to any one of claims 1 to 7.
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