CN111161592A - Classroom supervision method and supervising terminal - Google Patents

Classroom supervision method and supervising terminal Download PDF

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CN111161592A
CN111161592A CN201910880894.0A CN201910880894A CN111161592A CN 111161592 A CN111161592 A CN 111161592A CN 201910880894 A CN201910880894 A CN 201910880894A CN 111161592 A CN111161592 A CN 111161592A
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CN111161592B (en
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李晓林
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Qingdao Hisense Commercial Display Co Ltd
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    • G06Q50/20—Education
    • G06Q50/205—Education administration or guidance

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Abstract

The embodiment of the invention provides a classroom supervision method and a supervision terminal, wherein the method comprises the steps of sending a supervision request to a service platform; the supervising request comprises a to-be-supervised course identification; receiving video information generated by splicing the supervision request by the service platform; the video information comprises video data of a teaching end and video data of a listening end of the curriculum to be supervised; and displaying the video information on a display interface. The embodiment of the invention can effectively monitor the condition of a teaching teacher in a teaching classroom and the teaching condition of a teaching student in a teaching classroom through the video information displayed on the display interface, thereby ensuring the teaching quality and improving the classroom safety.

Description

Classroom supervision method and supervising terminal
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a classroom supervision method and a supervising terminal.
Background
The cloud classroom is an efficient, convenient and real-time interactive remote teaching classroom form based on the cloud computing technology. The user can share the voice, video and data files with different users such as students, teachers, parents and the like all over the world quickly and efficiently by performing simple and easy-to-use operation through an internet interface, and complex technologies such as transmission and processing of data in a classroom are helped by a cloud classroom service provider to operate the user. The cloud classroom greatly promotes the propagation of knowledge and saves educational resources. The system can be applied to autonomous learning and extraclass tutoring of students for expanding knowledge, and can also be applied to public education. In order to urge the students in the cloud classroom to obey the rules and improve the class listening quality, the class listening students in the cloud classroom need to be supervised for the classroom state.
In the prior art, for the cloud class of independent learning and extraclass tutoring of students, teaching teachers and students who attend classes all adopt personal terminals to give lessons and attend classes on line, and the teaching teachers can supervise the situation of the students who attend classes on line and the like.
However, for a classroom-oriented cloud classroom, that is, a teacher gives lessons to the classroom, and students can listen to lessons in other classrooms by watching a screen, there is no scheme for effectively monitoring the teaching quality of the teacher and the teaching status of the students.
Disclosure of Invention
The embodiment of the invention provides a classroom supervision method and a supervision terminal, which are used for realizing behavior supervision on a teaching teacher and students attending classes and ensuring the teaching quality.
In a first aspect, an embodiment of the present invention provides a classroom supervision method, including:
sending a supervising request to a service platform; the supervising request comprises a to-be-supervised course identification;
receiving video information generated by splicing the supervision request by the service platform; the video information comprises video data of a teaching end and video data of a listening end of the curriculum to be supervised;
and displaying the video information on a display interface.
In one possible design, the displaying the video information on the display interface includes
Analyzing the video information to obtain analyzed video data of the teaching end and analyzed video data of the listening end;
and displaying the analyzed teaching end video data and the analyzed listening end video data in a display interface in a partition mode.
In a possible design, the displaying the analyzed teaching end video data and the analyzed listening end video data on a display interface includes:
carrying out live broadcast display on the analyzed video data of the teaching end in a first display area of a display interface;
and performing carousel display on the analyzed video data of the listening end in a second display area of the display interface.
In one possible design, the displaying the video information on a display interface includes:
displaying a class list of the to-be-supervised course in a third display area of the display interface according to the to-be-supervised course identifier;
receiving a class selection instruction input by a user;
and displaying the analyzed video data of the listening end of the corresponding class in the second display area according to the class selection instruction.
In one possible design, the video information further includes a key frame and/or an abnormal frame of a video at the listening end of the course to be supervised; the displaying the video information on a display interface comprises:
displaying the key frame and/or the abnormal frame of the video at the class listening end in a fourth display area of a display interface; the key frames are video frames which are collected in a preset period, the abnormal frames are video frames of abnormal conditions of students attending classes at the class attending end, and the abnormal conditions comprise that the ratio of the number of the students attending classes to the number of the students in the class attending classes is smaller than a preset threshold value.
In a second aspect, an embodiment of the present invention provides a classroom supervision method, including:
receiving a supervising request sent by a supervising terminal, wherein the supervising request comprises a to-be-supervised course identifier;
acquiring video data of a teaching end and video data of a listening end of a to-be-supervised course according to the supervising request;
splicing the video data of the teaching end and the video data of the listening end to generate video information;
and sending the video information to a supervising terminal so as to display on a display interface of the supervising terminal.
In a possible design, the obtaining, according to the request to supervise the lesson, video data of a teaching end and video data of a listening end of the lesson to be supervised includes:
receiving video data of each lecture listening end and video data of each lecture giving end simultaneously in a multithreading mode;
and screening the video data of each lesson listening end and the video data of each lesson giving end according to the lesson supervising request to obtain the video data of the lesson giving end and the video data of the lesson listening end of the curriculum to be supervised.
In one possible design, the method further includes:
intercepting key frames of video data of each listening end at preset time intervals;
and screening the key frames of the video data of each listening end according to the supervising request to obtain the key frames of the courses to be supervised, and sending the key frames of the courses to be supervised to a supervising terminal so as to display the key frames on a display interface of the supervising terminal.
In a possible design, after intercepting the key frame of each listening-end video data at a preset time interval, the method further includes:
carrying out face recognition on the key frames of the video data of each class-attending end, and determining the number of people arriving at each class-attending end according to the face recognition result;
comparing the number of arriving people of each class-listening end with the corresponding number of arriving people of each class-listening end, and determining abnormal frames of video data of each class-listening end according to the comparison result;
and according to the lesson supervising request, screening the abnormal frames of the video data of each lesson listening end to obtain the abnormal frames of the lesson to be supervised, and sending the abnormal frames of the lesson to be supervised to a lesson supervising terminal so as to display the abnormal frames on a display interface of the lesson supervising terminal.
In a third aspect, an embodiment of the present invention provides a supervising terminal, including:
the first sending module is used for sending a supervising request to the service platform; the supervising request comprises a to-be-supervised course identification;
the first receiving module is used for receiving video information generated by the service platform according to the supervision request; the video information comprises video data of a teaching end and video data of a listening end of the curriculum to be supervised;
and the display module is used for displaying the video information on a display interface.
In a fourth aspect, an embodiment of the present invention provides a service platform, including:
the second receiving module is used for receiving a supervising request sent by a supervising terminal, wherein the supervising request comprises a to-be-supervised course identifier;
the acquisition module is used for acquiring video data of a teaching end and video data of a listening end of a to-be-supervised course according to the supervising request;
the generation module is used for splicing the video data of the teaching end and the video data of the listening end to generate video information;
and the second sending module is used for sending the video information to the supervising terminal so as to display on a display interface of the supervising terminal.
In a fifth aspect, an embodiment of the present invention provides a computer-readable storage medium, in which computer-executable instructions are stored, and when a processor executes the computer-executable instructions, the method according to the first aspect and various possible designs of the first aspect are implemented.
In a sixth aspect, the present invention provides a computer-readable storage medium, in which computer-executable instructions are stored, and when the computer-executable instructions are executed by a processor, the method according to the second aspect and various possible designs of the second aspect is implemented.
According to the classroom supervision method and the supervising terminal provided by the embodiment, the method sends a supervising request to the service platform; the supervising request comprises a to-be-supervised course identification; receiving video information generated by splicing the supervision request by the service platform; the video information comprises video data of a teaching end and video data of a listening end of the curriculum to be supervised; and displaying the video information on a display interface. Therefore, the condition of a teaching teacher in a teaching classroom and the condition of the students in the teaching classroom can be effectively monitored through the video information displayed on the display interface, the teaching quality is ensured, and the classroom safety is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of a cloud classroom supervision system according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a classroom supervision method according to an embodiment of the present invention;
fig. 3 is a schematic view of a display interface of a supervising terminal of the classroom supervision method according to another embodiment of the present invention;
fig. 4 is a schematic view of a display interface of a supervising terminal of the classroom supervision method according to another embodiment of the present invention;
fig. 5 is a schematic diagram of a class selection interface of a supervising terminal of the classroom monitoring method according to another embodiment of the present invention;
fig. 6 is a schematic diagram of a class selection interface of a supervising terminal of the classroom monitoring method according to another embodiment of the present invention;
fig. 7 is a flowchart illustrating a classroom supervision method according to another embodiment of the present invention;
fig. 8 is a schematic view of a display interface of a supervising terminal of the classroom supervision method according to another embodiment of the present invention;
fig. 9 is a flowchart illustrating a classroom supervision method according to another embodiment of the present invention;
fig. 10 is a schematic structural diagram of a supervising terminal according to an embodiment of the present invention;
FIG. 11 is a schematic structural diagram of a service platform according to yet another embodiment of the present invention;
fig. 12 is a schematic diagram of a hardware structure of a supervising terminal according to another embodiment of the present invention;
fig. 13 is a schematic diagram of a hardware structure of a service platform according to another embodiment of the present invention.
Detailed Description
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, but not all, embodiments of the present invention. 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.
Fig. 1 is a schematic diagram of a cloud classroom supervision system according to an embodiment of the present invention. As shown in fig. 1, the cloud classroom supervision system includes a teaching end 101, a plurality of listening ends 102, a service platform 103, and a supervision end 104; teaching end 101, with service platform 103 communication connection for gather the end video data of giving lessons in the classroom, and send this end video data of giving lessons to service platform 103, end 102 of listening to lessons, with service platform 103 communication connection, be used for gathering the end video data of listening to lessons in the classroom, and send this end video data of listening to lessons to service platform 103. And the service platform 103 is in communication connection with the supervising end 104 and is used for processing the video data of the teaching end and the video data of the listening end, sending the processed video information to the supervising end 104 for displaying, so that a supervising teacher can supervise and evaluate the displayed video information and take corresponding measures for abnormal conditions.
In practical application, the teaching end 101 is the terminal that sets up in the classroom of giving lessons, the terminal 102 of listening lessons is the terminal that sets up in the classroom of listening lessons, adopt this kind to the cloud classroom in classroom, can save educational resources greatly, be favorable to expanding the popularization scope to outstanding teacher's essence class, make the student in the rural area that educational resources are deficient relatively also can benefit, for supervise the teaching, guarantee teaching quality, can adopt above-mentioned cloud classroom to supervise the system and supervise the class, and is concrete, the video acquisition equipment of teaching end 101 gathers the video data of the end of giving lessons in the classroom, and send this end of giving lessons video data to service platform 103, the video acquisition equipment of listening end 102 gathers the end of listening lessons video data in the classroom, and send this end of listening lessons video data to service platform 103. After the service platform 103 processes the video data of the teaching end and the video data of the listening end, the video information obtained after the processing is sent to the supervising end 104 to be displayed, so that the supervising teacher supervises and evaluates the displayed video information, and takes corresponding measures for abnormal situations, thereby ensuring the teaching quality and improving the safety of the classroom.
The technical solution of the present invention will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
Fig. 2 is a flowchart illustrating a classroom supervision method according to an embodiment of the present invention. As shown in fig. 2, the method includes:
201. sending a supervising request to a service platform; the request for supervising the lesson comprises a lesson identification to be supervised.
In practical application, the execution main body of the embodiment is a supervising terminal, and specifically, the execution main body can be a computer, a tablet, a mobile phone and other terminal devices capable of performing video transmission with a service platform.
Specifically, the cloud classroom in this embodiment is in a classroom-oriented form, and when a supervising teacher wants to supervise a certain course, a supervising request may be sent to a service platform connected to a video acquisition device at a teaching end of the teaching classroom and a video acquisition device at a listening end of the teaching classroom, where the supervising request may include a to-be-supervised course identifier, so that the service platform retrieves video information of the relevant course. For example, the to-be-supervised course identification may be the name or code of the to-be-supervised course. As long as it can uniquely represent the lesson that needs to be supervised. This embodiment is not limited to this.
202. Receiving video information generated by splicing the supervision request by the service platform; the video information comprises video data of a teaching end and video data of a listening end of the course to be supervised.
Specifically, the service platform can call the video data of the corresponding teaching end and the teaching end according to the identification to be supervised carried in the request for supervising after receiving the request for supervising the lesson sent by the terminal for supervising the lesson. And carry out the concatenation processing to video data, for example can give lessons end video and listen to lesson end video and carry out synchronous processing, or to supervising the lesson video of the specific class that the teacher wanted to look over and carry out screening process etc. and send the video information that the concatenation generated to supervising the lesson terminal.
203. And displaying the video information on a display interface.
Optionally, the displaying the video information on a display interface may specifically include:
2031. and analyzing the video information to obtain the video data of the teaching end and the video data of the listening end after analysis.
2032. And displaying the analyzed teaching end video data and the analyzed listening end video data in a display interface in a partition mode.
Specifically, step 2032 may specifically include:
20321. and performing live broadcast display on the analyzed video data of the teaching end in a first display area of a display interface.
20322. And performing carousel display on the analyzed video data of the listening end in a second display area of the display interface.
In practical application, fig. 3 is a schematic view of a display interface of a supervising terminal of the classroom supervision method according to another embodiment of the present invention. As shown in fig. 3, a window for a video 1 of the lecture is provided on the left side (first display area) of the display interface to live video data of the lecture end. Three windows are arranged on the right side (a second display area) of the display interface to assist in supervising the lesson video 1, assisting in supervising the lesson video 2 and assisting in supervising the lesson video 3, and video data of the ends of listening are played in turn respectively. For example, it can be understood that, for a class to be supervised, only one teaching end is included, and a plurality of listening ends may be provided. For example, the lecture end may be set in a classroom of a first class of a first school, and the lecture end may be set in six classrooms of a third class to an eighth class of a second school. Namely, one teaching end and six listening ends. The display interface size of the supervising terminal is limited, and 3 auxiliary supervising video windows (auxiliary supervising video 1, auxiliary supervising video 2 and auxiliary supervising video 3) are exemplarily arranged in fig. 3. For example, in the first period (which may be 10 seconds), the auxiliary monitoring video 1 plays the video of the third class of the second school, the auxiliary monitoring video 2 plays the video of the fourth class of the second school, the auxiliary monitoring video 3 plays the video of the fifth class of the second school, in the second period, the auxiliary monitoring video 1 plays the video of the sixth class of the second school, the auxiliary monitoring video 2 plays the video of the seventh class of the second school, and the auxiliary monitoring video 3 plays the video of the eighth class of the second school.
In order to improve the flexibility of operation, a class selection function may be added in step 203 of this embodiment, so that the supervising teacher displays the video of the class to be viewed.
Optionally, an implementation manner may be that the displaying the video information on the display interface specifically includes:
2033. displaying a class list of the to-be-supervised course in a third display area of the display interface according to the to-be-supervised course identifier;
2034. receiving a class selection instruction input by a user;
2035. and displaying the analyzed video data of the listening end of the corresponding class in the second display area according to the class selection instruction.
The class selection function is described in detail below in conjunction with fig. 4 and 5. Fig. 4 is a schematic view of a display interface of a supervising terminal of the classroom supervision method according to another embodiment of the present invention. Fig. 5 is a schematic diagram of a class selection interface of a supervising terminal of the classroom supervision method according to another embodiment of the present invention. As shown in fig. 4, a class list is set in a third display area on the right side of the second display area to display all classes, or classes where the listening end related to the currently supervised class is located, or classes to be supervised, which are selected by the supervising teacher when the supervising request is sent, as required. In contrast, this embodiment is not limited. As shown in fig. 5, the selected class may be displayed in the window in the second display area by clicking on the class name in the class list. For example, the specific operation may be to click a window to be replaced, for example, the auxiliary supervising video 2 window, select a class to be displayed, for example, class 7, and click the confirmation button at the lower right corner for confirmation. After confirmation, the video data of class 7 is displayed in the auxiliary supervising video 2 window.
Optionally, an implementation manner is to combine carousel display with a present-age symbol manner of class selection, and specifically, fig. 6 is a schematic diagram of a class selection interface of a supervising terminal of the classroom supervision method according to another embodiment of the present invention. As shown in fig. 6, an unfixed-class button is added to the class list displayed in the third display area, and the two display modes are switched by selecting the unfixed-class button. For example, if the current display mode is a carousel display mode, after the unfixed class button is clicked, videos of a corresponding class can be automatically allocated to the window. And clicking the unfixed class button again, and displaying in a carousel mode instead. For specific operations, please refer to the description in the above embodiments, which is not repeated herein.
According to the classroom supervision method provided by the embodiment, a supervision request is sent to a service platform; the supervising request comprises a to-be-supervised course identification; receiving video information generated by splicing the supervision request by the service platform; the video information comprises video data of a teaching end and video data of a listening end of the curriculum to be supervised; and displaying the video information on a display interface. Therefore, the condition of a teaching teacher in a teaching classroom and the condition of the students in the teaching classroom can be effectively monitored through the video information displayed on the display interface, the teaching quality is ensured, and the classroom safety is improved.
Fig. 7 is a flowchart illustrating a classroom supervision method according to another embodiment of the present invention. As shown in fig. 7, on the basis of the above embodiment, the present embodiment expands the content of the video information and describes the display content of the display interface in detail, and the method includes:
701. sending a supervising request to a service platform; the supervising request comprises a to-be-supervised course identification;
702. receiving video information generated by splicing the supervision request by the service platform; the video information comprises video data of a teaching end and video data of a listening end of a to-be-supervised course, and key frames and/or abnormal frames of a video of the listening end;
703. analyzing the video data of the teaching end and the video data of the listening end of the curriculum to be supervised to obtain analyzed video data of the teaching end and analyzed video data of the listening end;
704. and displaying the analyzed teaching end video data and the analyzed listening end video data in a display interface in a partition mode.
In this embodiment, reference may be made to the description of steps 201 to 203 in the above embodiment for steps 701 to 704, which is not described herein again.
705. Displaying the key frame and/or the abnormal frame of the video at the class listening end in a fourth display area of a display interface; the key frames are video frames which are collected in a preset period, the abnormal frames are video frames of abnormal conditions of students attending classes at the class attending end, and the abnormal conditions comprise that the ratio of the number of the students attending classes to the number of the students in the class attending classes is smaller than a preset threshold value.
In practical application, fig. 8 is a schematic view of a display interface of a supervising terminal of the classroom monitoring method according to another embodiment of the present invention, as shown in fig. 8, live broadcasting video data of a lecture end in a first display area on the left upper side of the display interface, and alternate broadcasting video data of a lecture end in a second display area on the right upper side of the display interface. And displaying a window with the abnormal screenshot in a fourth display area below the display interface. The window of the abnormal screenshot can be used for displaying a key frame picture or an abnormal frame picture.
According to the classroom supervision method provided by the embodiment, a supervision request is sent to a service platform; the supervising request comprises a to-be-supervised course identification; receiving video information generated by splicing the supervision request by the service platform; the video information comprises video data of a teaching end and video data of a listening end of the curriculum to be supervised; and displaying the video information on a display interface. Therefore, the condition of a teaching teacher in a teaching classroom and the condition of the students in the teaching classroom can be effectively monitored through the video information displayed on the display interface, the teaching quality is ensured, and the classroom safety is improved.
Fig. 9 is a flowchart illustrating a classroom supervision method according to another embodiment of the present invention. As shown in fig. 9, the method includes:
901. receiving a supervising request sent by a supervising terminal, wherein the supervising request comprises a to-be-supervised course identifier.
In practical application, the execution subject of the embodiment is a service platform. It may be a server, a computer, or the like capable of performing video processing and communicating with the supervising terminal.
Specifically, the cloud classroom in this embodiment is in a classroom-oriented form, when a supervising teacher wants to supervise a certain course, a supervising terminal can send a supervising request to a service platform connected to a video acquisition device at a teaching end of the teaching classroom and a video acquisition device at a listening end of the listening end classroom, where the supervising request can include a to-be-supervised course identifier, so that the service platform can call video information of the relevant course. For example, the to-be-supervised course identification may be the name or code of the to-be-supervised course. As long as it can uniquely represent the lesson that needs to be supervised. This embodiment is not limited to this. The service platform receives the supervising request.
902. And acquiring video data of a teaching end and video data of a listening end of the to-be-supervised course according to the supervising request.
Optionally, the obtaining, according to the request to supervise the lesson, video data of a teaching end and video data of a listening end of the lesson to be supervised includes:
receiving video data of each lecture listening end and video data of each lecture giving end simultaneously in a multithreading mode;
and screening the video data of each lesson listening end and the video data of each lesson giving end according to the lesson supervising request to obtain the video data of the lesson giving end and the video data of the lesson listening end of the curriculum to be supervised.
Specifically, the service platform acquires a video stream of the lecture end and a video stream of the lecture listening end, and in this embodiment, the video is acquired by using a Fast Forward video coding standard (FFmpeg), which can be implemented by using a live streaming method. The service platform receives the video stream of the listening end simultaneously in a multithreading mode. After reading the frame, according to the principle of carousel, selecting the video frame of the listening end according to the identification of the to-be-supervised course in the supervision request, and discarding the video frames of other listening ends which do not participate in the to-be-supervised course. And splicing video frame pictures by adopting a mode of a left main teaching image and a right lecture end image to form a new video frame. And the server sends the new video frame to the supervising end. After receiving the video stream, the supervising end analyzes the video stream by using the H5 native player, and displays the images of the attending and teaching ends on the webpage.
903. And splicing the video data of the teaching end and the video data of the listening end to generate video information.
Specifically, the service platform performs synchronous processing on the video data of the teaching end and the video data of the listening end. Namely, the teaching end video and the listening end video at the corresponding time are played at the same time, so that the conditions of delay and asynchronism are avoided. In addition, the video of the class to be supervised included in the supervising request can be spliced with the video of the teaching end after being screened.
904. And sending the video information to a supervising terminal so as to display on a display interface of the supervising terminal.
In the classroom supervision method provided by the embodiment, a supervision request sent by a supervision terminal is received, and the supervision request includes a to-be-supervised course identifier; acquiring video data of a teaching end and video data of a listening end of a to-be-supervised course according to the supervising request; splicing the video data of the teaching end and the video data of the listening end to generate video information; and sending the video information to a supervising terminal so as to display on a display interface of the supervising terminal. Therefore, the condition of a teaching teacher in a teaching classroom and the condition of the students in the teaching classroom can be effectively monitored through the video information displayed on the display interface, the teaching quality is ensured, and the classroom safety is improved.
On the basis of the above embodiment in which the service platform is used as the execution subject, a method for supervising a course according to another embodiment of the present invention further includes:
905. and intercepting key frames of video data of each listening end at preset time intervals.
906. And screening the key frames of the video data of each listening end according to the supervising request to obtain the key frames of the courses to be supervised, and sending the key frames of the courses to be supervised to a supervising terminal so as to display the key frames on a display interface of the supervising terminal.
907. And carrying out face recognition on the key frames of the video data of each class-attending end, and determining the number of people arriving at the class according to the face recognition result.
908. And comparing the number of arriving people of each class-listening end with the corresponding number of arriving people of each class-listening end, and determining abnormal frames of video data of each class-listening end according to the comparison result.
909. And according to the lesson supervising request, screening the abnormal frames of the video data of each lesson listening end to obtain the abnormal frames of the lesson to be supervised, and sending the abnormal frames of the lesson to be supervised to a lesson supervising terminal so as to display the abnormal frames on a display interface of the lesson supervising terminal.
In practical application, for improving the efficiency of supervising the class at the end of supervising the class, reduce because the teacher of supervising the class can only pay close attention to some problem in the class room, adopted two kinds of realizable modes to carry out further course supervision in this embodiment. The first way is to intercept the video frames of the client at fixed intervals. After the period of intercepting the client video frames is set, the platform acquires the video stream of the client, acquires key frames at intervals of the period, and uploads the key frames to a file system of the platform. When the supervision page requests the video screenshot of the supervision end, the platform sends the video screenshot to the supervision end. And the second mode is a mode of abnormity detection to obtain the video screenshot. And after the platform acquires the video stream, intercepting each key frame, detecting whether the lecture listening end is abnormal in the key frame, if so, storing the picture in the server, and when the lecture supervising end requests a lecture supervising image, sending the screenshot to the lecture listening end. In this example, the abnormal detection mode may be to detect the number of students in the screenshot by using a face detection method, and when the ratio of the number of students arriving at the class to the number of corresponding students is smaller than a preset threshold, the key frame is determined to be an abnormal frame.
According to the course supervision method provided by the embodiment, the collection of the key frames and the abnormal frames is adopted, and the request for supervising the course is received and then fed back to the supervising end in time, so that the efficiency of supervising the course can be improved.
On the basis of the above embodiment, another embodiment of the present invention describes in detail the information interaction process between the supervising terminal and the service platform, and the method includes:
1001. the supervising terminal sends a supervising request to the service platform; the supervising request comprises a to-be-supervised course identification;
1002. the service platform receives a supervising request sent by a supervising terminal, wherein the supervising request comprises a to-be-supervised course identifier.
1003. And the service platform receives the video data of each class-listening end and the video data of the teaching end simultaneously in a multithreading mode, and screens the video data of each class-listening end and the video data of the teaching end according to the supervising request to obtain the video data of the teaching end and the video data of the class-listening end of the to-be-supervised course.
1004. And the service platform splices the video data of the teaching end and the video data of the listening end to generate spliced video data.
1005. Intercepting key frames of video data of each listening end at preset time intervals; and screening the key frames of the video data of each listening end according to the supervising request to obtain the key frames of the courses to be supervised.
1006. Carrying out face recognition on the key frames of the video data of each class-attending end, and determining the number of people arriving at each class-attending end according to the face recognition result; comparing the number of arriving people of each class-listening end with the corresponding number of arriving people of each class-listening end, and determining abnormal frames of video data of each class-listening end according to the comparison result; and screening the abnormal frames of the video data of each listening end according to the supervising request to obtain the abnormal frames of the courses to be supervised.
1007. And sending the spliced video data, the key frames and the abnormal frames to a supervising course terminal as video information.
1008. The supervising terminal receives video information generated by splicing the supervising requests by the service platform; the video information comprises video data of a teaching end and video data of a listening end of a to-be-supervised course, and key frames and/or abnormal frames of a video of the listening end;
1009. analyzing the video data of the teaching end and the video data of the listening end of the curriculum to be supervised to obtain analyzed video data of the teaching end and analyzed video data of the listening end;
1010. and displaying the analyzed teaching end video data and the analyzed listening end video data in a display interface in a partition mode.
1011. Displaying the key frame and/or the abnormal frame of the video at the class listening end in a fourth display area of a display interface; the key frames are video frames which are collected in a preset period, the abnormal frames are video frames of abnormal conditions of students attending classes at the class attending end, and the abnormal conditions comprise that the ratio of the number of the students attending classes to the number of the students in the class attending classes is smaller than a preset threshold value.
In the classroom supervision method provided by the embodiment, a supervision request is sent to a service platform through a supervision terminal; the supervising request comprises a to-be-supervised course identification; the service platform acquires video data of a teaching end and video data of a listening end of a to-be-supervised course according to the supervising request; splicing the video data of the teaching end and the video data of the listening end to generate video information; and sending the video information to a supervising terminal so as to display on a display interface of the supervising terminal. The supervising terminal receives video information generated by splicing the supervising requests by the service platform; the video information comprises video data of a teaching end and video data of a listening end of the curriculum to be supervised; and the supervising terminal displays the video information on a display interface. Therefore, the condition of a teaching teacher in a teaching classroom and the condition of the students in the teaching classroom can be effectively monitored through the video information displayed on the display interface, the teaching quality is ensured, and the classroom safety is improved.
Fig. 10 is a schematic structural diagram of a supervising terminal according to an embodiment of the present invention. As shown in fig. 10, the supervising terminal 110 includes: a first transmitting module 1101, a first receiving module 1102, and a display module 1103.
A first sending module 1101, configured to send a supervision request to the service platform; the supervising request comprises a to-be-supervised course identification;
a first receiving module 1102, configured to receive video information generated by a service platform according to the supervision request; the video information comprises video data of a teaching end and video data of a listening end of the curriculum to be supervised;
a display module 1103, configured to display the video information on a display interface.
In the classroom supervision device provided by the embodiment of the present invention, the first sending module 1101 sends a supervision request to the service platform; the supervising request comprises a to-be-supervised course identification; the first receiving module 1102 receives video information generated by the service platform according to the supervision request; the video information comprises video data of a teaching end and video data of a listening end of the curriculum to be supervised; the display module 1103 displays the video information on a display interface. Therefore, the condition of a teaching teacher in a teaching classroom and the condition of the students in the teaching classroom can be effectively monitored through the video information displayed on the display interface, the teaching quality is ensured, and the classroom safety is improved.
Optionally, the display module 1103 is specifically configured to:
analyzing the video information to obtain analyzed video data of the teaching end and analyzed video data of the listening end;
and displaying the analyzed teaching end video data and the analyzed listening end video data in a display interface in a partition mode.
Optionally, the display module 1103 is specifically configured to:
carrying out live broadcast display on the analyzed video data of the teaching end in a first display area of a display interface;
and performing carousel display on the analyzed video data of the listening end in a second display area of the display interface.
Optionally, the display module 1103 is specifically configured to:
displaying a class list of the to-be-supervised course in a third display area of the display interface according to the to-be-supervised course identifier;
receiving a class selection instruction input by a user;
and displaying the analyzed video data of the listening end of the corresponding class in the second display area according to the class selection instruction.
Optionally, the video information further includes a key frame and/or an abnormal frame of a video at a listening end of a course to be supervised; the display module 1103 is specifically configured to:
displaying the key frame and/or the abnormal frame of the video at the class listening end in a fourth display area of a display interface; the key frames are video frames which are collected in a preset period, the abnormal frames are video frames of abnormal conditions of students attending classes at the class attending end, and the abnormal conditions comprise that the ratio of the number of the students attending classes to the number of the students in the class attending classes is smaller than a preset threshold value.
The supervising terminal provided by the embodiment of the invention can be used for executing the method embodiment, the realization principle and the technical effect are similar, and the embodiment is not repeated herein.
Fig. 11 is a schematic structural diagram of a service platform according to another embodiment of the present invention. As shown in fig. 11, the service platform 120 includes: a second receiving module 1201, an obtaining module 1202, a generating module 1203, and a second sending module 1204.
A second receiving module 1201, configured to receive a supervising request sent by a supervising terminal, where the supervising request includes a to-be-supervised course identifier;
an obtaining module 1202, configured to obtain, according to the supervision request, video data of a teaching end and video data of a listening end of a to-be-supervised course;
a generating module 1203, configured to splice the video data of the lecture end and the video data of the lecture listening end to generate video information;
a second sending module 1204, configured to send the video information to a supervising terminal, so as to display the video information on a display interface of the supervising terminal.
In the classroom supervision device provided by the embodiment of the invention, the second receiving module 1201 receives a supervising request sent by a supervising terminal, wherein the supervising request comprises a to-be-supervised course identifier; the obtaining module 1202 obtains video data of a teaching end and video data of a listening end of a to-be-supervised course according to the supervising request; the generation module 1203 splices the video data of the lecture end and the video data of the lecture listening end to generate video information; the second sending module 1204 sends the video information to the supervising terminal to be displayed on a display interface of the supervising terminal. Therefore, the condition of a teaching teacher in a teaching classroom and the condition of the students in the teaching classroom can be effectively monitored through the video information displayed on the display interface, the teaching quality is ensured, and the classroom safety is improved.
Optionally, the obtaining module 1202 is specifically configured to:
receiving video data of each lecture listening end and video data of each lecture giving end simultaneously in a multithreading mode;
and screening the video data of each lesson listening end and the video data of each lesson giving end according to the lesson supervising request to obtain the video data of the lesson giving end and the video data of the lesson listening end of the curriculum to be supervised.
Optionally, the apparatus further comprises:
an intercepting module 1205, configured to intercept key frames of video data of each listening end at preset time intervals;
the first screening module 1206 is configured to screen the keyframes of the video data of each listening end according to the supervising request to obtain keyframes of the to-be-supervised courses, and send the keyframes of the to-be-supervised courses to the supervising terminal for displaying on a display interface of the supervising terminal.
Optionally, the apparatus further comprises:
a first determining module 1207, configured to perform face recognition on the keyframe of the video data of each class listening end, and determine the number of people arriving at the class listening end according to a face recognition result;
a second determining module 1208, configured to compare the number of people arriving at each class attending end with the number of people corresponding to each class attending end, and determine an abnormal frame of video data of each class attending end according to a comparison result;
and the second screening module 1209 is configured to screen the abnormal frame of the video data of each listening end according to the supervising request to obtain an abnormal frame of a to-be-supervised course, and send the abnormal frame of the to-be-supervised course to the supervising terminal so as to display the abnormal frame on a display interface of the supervising terminal.
The service platform provided by the embodiment of the present invention can be used for executing the above method embodiments, and the implementation principle and technical effect are similar, which are not described herein again.
Fig. 12 is a schematic diagram of a hardware structure of a supervising terminal according to another embodiment of the present invention. As shown in fig. 12, the supervising terminal 130 provided in this embodiment includes: at least one processor 1301 and memory 1302. The processor 1301 and the memory 1302 are connected to each other via a bus 1303.
In particular implementations, the at least one processor 1301 executes the computer-executable instructions stored in the memory 1302, such that the at least one processor 1301 performs the class supervision method performed by the supervision terminal 130.
For a specific implementation process of the processor 1301, reference may be made to the above method embodiments, which have similar implementation principles and technical effects, and details are not described herein again.
In the embodiment shown in fig. 12, it should be understood that the Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present invention may be embodied directly in a hardware processor, or in a combination of the hardware and software modules within the processor.
The memory may comprise high speed RAM memory and may also include non-volatile storage NVM, such as at least one disk memory.
The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, the buses in the figures of the present application are not limited to only one bus or one type of bus.
Fig. 13 is a schematic diagram of a hardware structure of a service platform according to another embodiment of the present invention. As shown in fig. 13, the service platform 140 provided in this embodiment includes: at least one processor 1401, and memory 1402. The processor 1401 and the memory 1402 are connected by a bus 1403.
In a particular implementation, the at least one processor 1401 executes computer-executable instructions stored by the memory 1402, causing the at least one processor 1401 to perform a classroom supervision method as performed by the service platform 140 above.
For a specific implementation process of the processor 1401, reference may be made to the above method embodiments, which implement similar principles and technical effects, and this embodiment is not described herein again.
In the embodiment shown in fig. 13, it should be understood that the Processor may be a Central Processing Unit (CPU), other general-purpose processors, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present invention may be embodied directly in a hardware processor, or in a combination of the hardware and software modules within the processor.
The memory may comprise high speed RAM memory and may also include non-volatile storage NVM, such as at least one disk memory.
The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, the buses in the figures of the present application are not limited to only one bus or one type of bus.
The application also provides a computer-readable storage medium, wherein computer execution instructions are stored in the computer-readable storage medium, and when a processor executes the computer execution instructions, the classroom supervision method executed by the on-board supervising terminal is realized.
The present application also provides a computer-readable storage medium, in which computer-executable instructions are stored, and when a processor executes the computer-executable instructions, the classroom supervision method performed by the above service platform is implemented.
The computer-readable storage medium may be implemented by any type of volatile or non-volatile memory device or combination thereof, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk. Readable storage media can be any available media that can be accessed by a general purpose or special purpose computer.
An exemplary readable storage medium is coupled to the processor such the processor can read information from, and write information to, the readable storage medium. Of course, the readable storage medium may also be an integral part of the processor. The processor and the readable storage medium may reside in an Application Specific Integrated Circuits (ASIC). Of course, the processor and the readable storage medium may also reside as discrete components in the apparatus.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A classroom supervision method, comprising:
sending a supervising request to a service platform; the supervising request comprises a to-be-supervised course identification;
receiving video information generated by splicing the supervision request by the service platform; the video information comprises video data of a teaching end and video data of a listening end of the curriculum to be supervised;
and displaying the video information on a display interface.
2. The method of claim 1, wherein displaying the video information on a display interface comprises:
analyzing the video information to obtain analyzed video data of the teaching end and analyzed video data of the listening end;
and displaying the analyzed teaching end video data and the analyzed listening end video data in a display interface in a partition mode.
3. The method according to claim 2, wherein the displaying the parsed lecture end video data and the parsed lecture listening end video data on a display interface comprises:
carrying out live broadcast display on the analyzed video data of the teaching end in a first display area of a display interface;
and performing carousel display on the analyzed video data of the listening end in a second display area of the display interface.
4. The method of claim 3, wherein displaying the video information on a display interface comprises:
displaying a class list of the to-be-supervised course in a third display area of the display interface according to the to-be-supervised course identifier;
receiving a class selection instruction input by a user;
and displaying the analyzed video data of the listening end of the corresponding class in the second display area according to the class selection instruction.
5. The method according to any one of claims 1-4, wherein the video information further comprises key frames and/or abnormal frames of the listening-end video of the to-be-supervised course; the displaying the video information on a display interface comprises:
displaying the key frame and/or the abnormal frame of the video at the class listening end in a fourth display area of a display interface; the key frames are video frames which are collected in a preset period, the abnormal frames are video frames of abnormal conditions of students attending classes at the class attending end, and the abnormal conditions comprise that the ratio of the number of the students attending classes to the number of the students in the class attending classes is smaller than a preset threshold value.
6. A classroom supervision method, comprising:
receiving a supervising request sent by a supervising terminal, wherein the supervising request comprises a to-be-supervised course identifier;
acquiring video data of a teaching end and video data of a listening end of a to-be-supervised course according to the supervising request;
splicing the video data of the teaching end and the video data of the listening end to generate video information;
and sending the video information to a supervising terminal so as to display on a display interface of the supervising terminal.
7. The method of claim 6, wherein the obtaining video data of the lecture end and the lecture listening end of the to-be-supervised curriculum according to the supervising request comprises:
receiving video data of each lecture listening end and video data of each lecture giving end simultaneously in a multithreading mode;
and screening the video data of each lesson listening end and the video data of each lesson giving end according to the lesson supervising request to obtain the video data of the lesson giving end and the video data of the lesson listening end of the curriculum to be supervised.
8. The method of claim 6, further comprising:
intercepting key frames of video data of each listening end at preset time intervals;
and screening the key frames of the video data of each listening end according to the supervising request to obtain the key frames of the courses to be supervised, and sending the key frames of the courses to be supervised to a supervising terminal so as to display the key frames on a display interface of the supervising terminal.
9. The method according to claim 8, wherein after intercepting the key frame of each listening-end video data at a preset time interval, further comprising:
carrying out face recognition on the key frames of the video data of each class-attending end, and determining the number of people arriving at each class-attending end according to the face recognition result;
comparing the number of arriving people of each class-listening end with the corresponding number of arriving people of each class-listening end, and determining abnormal frames of video data of each class-listening end according to the comparison result;
and according to the lesson supervising request, screening the abnormal frames of the video data of each lesson listening end to obtain the abnormal frames of the lesson to be supervised, and sending the abnormal frames of the lesson to be supervised to a lesson supervising terminal so as to display the abnormal frames on a display interface of the lesson supervising terminal.
10. A supervising terminal, comprising: at least one processor and memory;
the memory stores computer-executable instructions;
the at least one processor executing the memory-stored computer-executable instructions cause the at least one processor to perform the classroom supervision method of any of claims 1-5.
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