CN109889916B - Application system of recorded broadcast data - Google Patents
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- CN109889916B CN109889916B CN201910011789.3A CN201910011789A CN109889916B CN 109889916 B CN109889916 B CN 109889916B CN 201910011789 A CN201910011789 A CN 201910011789A CN 109889916 B CN109889916 B CN 109889916B
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Abstract
The invention provides an application system of recorded broadcast data, which comprises: the recording and broadcasting platform receives audio information, video information and courseware information of the classroom terminal equipment; then extracting keywords, acquiring time and position information of the extracted keywords, and generating a streaming media file; at least one first network device, a second network device; the first server receives each streaming media file sent by the second network equipment and stores the streaming media files; the second server receives the starting parts of the streaming media files sent by the second network equipment, determines a target streaming media file according to the live broadcast operation instruction, and then sends the starting parts of the target streaming media file; or caching the streaming media file, and calling the streaming media file from the cache according to the on-demand operation instruction. Therefore, the streaming media files generated by the recording and playing platforms can be interacted in the local area network and can be live broadcast or on demand broadcast.
Description
Technical Field
The invention relates to the technical field of data processing, in particular to an application system of recorded broadcast data.
Background
In the prior art, a multimedia classroom comprises a multimedia classroom system, a communication system and a cloud service system which are connected in sequence, a great deal of knowledge is continuously created by the progress of science and technology and the development of social civilization, higher requirements are provided for the learning ability of modern people, and one person needs to stand in the society and obtain better development and must learn and master enough scientific and technological knowledge.
In recent years, technologies such as computers, networks, and multimedia have been increasingly applied to the field of education, and the popularization of education informationization has been promoted. Education informatization is to use computer multimedia network information technology to promote comprehensive reform of teaching, so that the information-based society adapts to new requirements for education development, and has great significance in implementing quality education.
With the popularization of the internet, remote teaching is a common teaching mode in the information-developed state today. However, in the teaching, a large amount of recorded and broadcast data is generated, and how to supervise and utilize the data becomes a problem to be solved urgently.
Disclosure of Invention
The invention provides an application system of recorded broadcast data, which aims to solve the problems in the prior art.
In order to solve the above problems, the present invention provides an application system for recorded and broadcast data, comprising:
the recording and broadcasting platform is arranged in each education institution of a plurality of education institutions in a first area and is used for receiving audio information acquired by at least one audio acquisition device in each classroom, video information acquired by at least one video acquisition device and courseware information of classroom terminal devices in each education institution; then extracting keywords from the audio information, acquiring time position information of the extracted keywords, marking the first keywords in the video information according to the time position information, and then integrating the video information marked with the first keywords, the audio information and the courseware information to generate a streaming media file;
each first network device is connected with one recorded broadcast platform and used for receiving the streaming media file sent by the recorded broadcast platform;
the second network equipment is connected with at least one first network equipment and is used for receiving the streaming media files sent by each first network equipment;
the first server is connected with the second network equipment and used for receiving each streaming media file sent by the second network equipment and storing the streaming media file;
the second server is connected with the second network equipment and used for receiving the starting parts of all the streaming media files sent by the second network equipment, determining a target streaming media file according to a live operation instruction after receiving the live operation instruction of a user terminal, then sending the starting part of the target streaming media file to the user terminal and simultaneously receiving the part except the starting part of the target streaming media file sent by the second network equipment; or caching the streaming media file, calling the streaming media file from the cache according to the on-demand operation instruction after receiving the on-demand operation instruction of the user terminal, and sending the streaming media file to the user terminal.
In a possible implementation manner, the application system for recording and broadcasting data further comprises an assessment terminal and a database;
the first server is respectively connected with the assessment terminal and the database and is used for receiving a play request message of the assessment terminal, wherein the play request message comprises a terminal identification ID;
the database is further used for receiving the terminal ID sent by the first server, and sending a response message to the first server when the terminal ID exists;
and the first server is also used for sending the streaming media file to the assessment terminal according to the response message.
In a possible implementation manner, the assessment terminal is further configured to process the streaming media file, extract at least one face image of the streaming media file, acquire a face feature according to the face image, generate change data of the face feature according to the face feature within a preset time duration, analyze the change data, generate lecture listening state information according to an analysis result of each face image, generate a lecture listening state change curve according to the lecture listening state information, and evaluate the lecture listening state of a student according to the lecture listening state change curve.
In a possible implementation manner, a first local area network is generated through the first network device and the recording and playing platform;
and in the first local area network, the education institution corresponding to the recording and broadcasting platform carries out interaction of streaming media files.
In a possible implementation manner, the second server is further configured to, after receiving the streaming media file, decode the streaming media file, then extract the first keyword, generate a second keyword according to the first keyword, and add the second keyword to the decoded streaming media file.
In a possible implementation manner, the application system for recording and broadcasting data further includes a platform server;
the platform server is respectively connected with the first server and the second server and is used for monitoring and managing the running states of the first server and the second server.
In a possible implementation manner, the application system for recording and broadcasting data further includes a centralized control machine room;
the centralized control machine room is respectively connected with the recording and broadcasting platform and used for controlling the recording and broadcasting platform.
In a possible implementation manner, the application system for recording and broadcasting data further includes: an environment device, an environment detection device and an environment control device which are arranged in a classroom;
the environment detection equipment is used for detecting the state of the environment equipment, generating a detection signal when the state of the environment equipment does not accord with a preset first condition, and sending the detection signal to the environment control equipment; the environment control device is used for controlling the environment device according to the detection signal so as to enable the environment device to reach a preset first condition.
By applying the application system of the recorded broadcast data provided by the embodiment of the invention, recorded broadcast classrooms can be controlled, the streaming media files generated by each recorded broadcast classroom can be interacted in a local area network, the classroom teaching condition in the classroom can be evaluated by utilizing the storage server and the auditing terminal, and the live broadcast or on-demand broadcast of the teaching content can be carried out through the streaming media server.
Drawings
Fig. 1 is a schematic structural diagram of an application system for recording and playing data according to an embodiment of the present invention.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be further noted that, for the convenience of description, only the portions related to the related invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
The following first, second, etc. numbering is used for distinguishing purposes only and has no other meaning.
Fig. 1 is a schematic structural diagram of an application system of recorded and broadcast data provided by the present invention, and as shown in fig. 1, the application system of recorded and broadcast data includes: recording and broadcasting platform 101, first network equipment 102, second network equipment 103, first server 104 and second server 105.
The recording and broadcasting platform 101 is arranged in each of a plurality of education institutions in the first area and is used for receiving audio information acquired by at least one audio acquisition device in each classroom, video information acquired by at least one video acquisition device and courseware information of classroom terminal devices in each education institution; and then extracting keywords from the audio information, acquiring time position information of the extracted keywords, marking the first keywords in the video information according to the time position information, and then integrating the video information, the audio information and the courseware information marked with the first keywords to generate a streaming media file.
Specifically, the first area may be a certain area in a certain city, for example, a chang ping district in beijing, the education institution may be a school, the school may be a high-grade middle school, a professional school, a primary school, or the like, and the application is not limited thereto.
In each classroom of each school, an audio device and a video device may be provided. For example, there are 12 classrooms in school A, and the serial number is classroom 1 to classroom 12 in proper order, and every classroom can be provided with a plurality of audio acquisition equipment and a plurality of video acquisition equipment, for example, has 4 video equipment and 4 audio equipment, can be video equipment 1 to video equipment 4 in proper order, and audio equipment 1 to audio equipment 4, every video equipment can set up in the position of difference, and the same reason, every first video equipment also can set up in the position of difference. Therefore, the comprehensiveness of the acquired audio and video information is ensured by acquiring the audio and video information of the same teaching scene in the same classroom from different directions.
The classroom terminal equipment can be a computer in a classroom, courseware information of a teacher can be stored in the computer, and the courseware can be files in various formats, such as word, ppt and the like.
The recording and broadcasting platform 101 has a processor, and the processor can extract the received audio information, extract the first keyword, and record the time and position information of extracting the first keyword, such as extracting the first keyword "ancient poetry reciting" in 10 minutes and 20 seconds, so that the first keyword "ancient poetry reciting" can be added in the 10 minutes and 20 seconds of the video information according to the time and position information.
Meanwhile, the recording and broadcasting platform 101 is also provided with an encoder, and subsequently, the encoder compresses the audio information, the video information added with the first keyword and the courseware information.
Further, the application system for recording and broadcasting data further comprises: an environment device, an environment detection device and an environment control device which are arranged in a classroom;
the environment detection equipment is used for detecting the state of the environment equipment, generating a detection signal when the state of the environment equipment does not accord with a preset first condition, and sending the detection signal to the environment control equipment; the environment control device is used for controlling the environment device according to the detection signal so as to enable the environment device to reach a preset first condition. Wherein the environment device includes at least one of a Light Emitting Diode (LED), a humidifying device, and an air purifying system.
The environment control device may be any one of a switch for controlling light, a switch for the humidifying device, and a switch for the air purifying system corresponding to the environment device.
The preset first condition may be that the indoor humidity is 60%, the air quality is excellent, etc.
The environment detection device can detect indoor humidity and indoor air quality, and when the humidity and the air quality are not accordant with a preset first condition, a detection signal is generated. The detection signal can be sent to the environment control device, or can be sent to the environment control device after being processed by a processor in the recording and broadcasting platform 101, and the environment control device can control the starting of the humidifying device or the air purification system.
It is understood that, when the indoor humidity and the air quality reach the preset first condition and the detection device detects that the time for the environmental device to reach the preset first condition is not less than the preset first time, the detection device may generate a turn-off signal and transmit the turn-off signal to the environmental control device, and the environmental control device may control the turn-off of the humidification device or the air purification system.
Through the environment equipment, the environment control equipment and the environment detection equipment, the indoor environment can be in a normal environment, the health of teachers and students is ensured, and the normal operation of the whole recording and broadcasting data application system is also ensured.
Each first network device 102 is connected to one recording and playing platform 101, and is configured to receive a streaming media file sent by the recording and playing platform 101.
The first network device 102 may be a switch, which may transmit first target information of a plurality of classrooms of the school.
The second network device 103 is connected to at least one first network device 102, and is configured to receive the streaming media file sent by each first network device 102.
Wherein the second network device 103 may be a core switch.
The first server 104 is connected to the second network device 103, and is configured to receive each streaming media file sent by the second network device 103 and store the streaming media file.
The first server 104 is a storage server, the first server 104 may be a server specially configured by a third party, and the third party may be an educational system.
A second server 105, connected to the second network device 103, configured to receive a start portion of each streaming media file sent by the second network device 103, determine a target streaming media file according to a live operation instruction after receiving the live operation instruction of the user terminal, send the start portion of the target streaming media file to the user terminal, and receive a portion other than the start portion of the target streaming media file sent by the second network device 103; or caching the streaming media file, calling the streaming media file from the cache according to the on-demand operation instruction after receiving the on-demand operation instruction of the user terminal, and sending the streaming media file to the user terminal.
The second server 105 may be a streaming server, and a core system of a streaming application is a key platform for an operator to provide video services to users. The main functions of the streaming media server are to collect, cache, schedule, transmit and play streaming media contents.
Therefore, the recorded and broadcast data can be stored, on-demand broadcast and live broadcast through the application system of the recorded and broadcast data, and the data processing speed is improved through storing the recorded and broadcast data on a special server.
Further, the first server 104 can qualify the lectures in the classroom. Specifically, the recording and broadcasting data application system further comprises an assessment terminal 107 and a database 106;
the first server 104 is respectively connected with the assessment terminal 107 and the database 106, and is used for receiving a play request message of the assessment terminal 107, wherein the play request message includes a terminal identifier ID;
the database 106 is further configured to receive the terminal ID sent by the first server 104, and send a response message to the first server 104 when the terminal ID exists therein;
the first server 104 is further configured to send the streaming media file to the assessment terminal 107 according to the response message.
In an example, the assessment terminal 107 is further configured to process the streaming media file, extract at least one face image of the streaming media file, obtain face features according to the face image, generate change data of the face features according to the face features within a preset time duration, analyze the change data, generate lecture attending state information according to an analysis result of each face image, generate a lecture attending state change curve according to the lecture attending state information, and finally evaluate the lecture attending state of the student according to the lecture attending state change curve.
The human face features comprise facial feature points including eyes, a mouth, eyebrows and the like, and the person skilled in the art can set the facial features to be labeled according to the needs; after the change data of the plurality of facial features are obtained, analyzing the change of the characteristic points of the plurality of labeled facial features to obtain the expression information of the student; analyzing the emotion information through a preset model and an algorithm to obtain the lesson listening state information of the student, wherein the lesson listening state information specifically comprises a thinking state, a stuttering state, an exciting state, a puzzling state, a sleeping state and the like; and generating a lecture attending state change curve according to the change condition of the lecture attending state information, thereby recording the lecture attending state of the student.
For example, if the staying time of the eyes of a student at the same position exceeds the preset time threshold through the algorithm, the class-listening state of the student in the period can be obtained as a stay, so that a class-listening state change curve is generated according to the class-listening time and the continuous change of the class-listening state, and the state change curve is sent by the assessment terminal 107 to draw the attention of the user of the assessment terminal 107.
Further, a first local area network is generated through the first network device 102 and the recording and playing platform 101;
in the first local area network, the education institution corresponding to the recording and playing platform 101 performs interaction of the streaming media files.
Therefore, the local area network of the education resources can be constructed, each education institution can interact with the streaming media file in the local area network, and compared with the prior method of acquiring the streaming media files from the server, the interactive mode greatly saves time.
Further, the second server 105 is further configured to, after receiving the streaming media file, decode the streaming media file, then extract the first keyword, generate a second keyword according to the first keyword, and add the second keyword to the decoded streaming media file.
Further, the application system for recording and broadcasting data further comprises a platform server 108 and a platform server 108;
platform server 108 the platform server 108 is connected to the first server 104 and the second server 105, respectively, for monitoring and managing the operating status of the first server 104 and the second server 105.
Furthermore, the application system for recording and broadcasting data also comprises a centralized control machine room;
the centralized control machine room is respectively connected with the recording and broadcasting platform 101 and is used for controlling the recording and broadcasting platform 101.
By applying the application system of the recorded broadcast data provided by the embodiment of the invention, recorded broadcast classrooms can be controlled, the streaming media files generated by each recorded broadcast classroom can be interacted in a local area network, the classroom teaching condition in the classroom can be evaluated by utilizing the storage server and the auditing terminal, and live broadcast or on-demand of teaching contents can be carried out through the streaming media server.
Those of skill would further appreciate that the various illustrative components and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied in hardware, a software module executed by a processor, or a combination of the two. A software module may reside in Random Access Memory (RAM), memory, read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The above embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the scope of the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. An application system for recorded broadcast data, the application system for recorded broadcast data comprising:
the recording and broadcasting platform is arranged in each education institution of a plurality of education institutions in a first area and is used for receiving audio information acquired by at least one audio acquisition device in each classroom, video information acquired by at least one video acquisition device and courseware information of classroom terminal devices in each education institution; then extracting keywords from the audio information, acquiring time position information of the extracted keywords, marking the first keywords in the video information according to the time position information, and then integrating the video information marked with the first keywords, the audio information and the courseware information to generate a streaming media file;
each first network device is connected with a recording and broadcasting platform and is used for receiving a streaming media file sent by the recording and broadcasting platform;
the second network equipment is connected with at least one first network equipment and is used for receiving the streaming media files sent by each first network equipment;
the first server is connected with the second network equipment and used for receiving each streaming media file sent by the second network equipment and storing the streaming media file;
the second server is connected with the second network equipment and used for receiving the starting parts of all the streaming media files sent by the second network equipment, determining a target streaming media file according to a live operation instruction after receiving the live operation instruction of a user terminal, then sending the starting part of the target streaming media file to the user terminal and simultaneously receiving the part except the starting part of the target streaming media file sent by the second network equipment; or caching the streaming media file, calling the streaming media file from the cache according to an on-demand operation instruction after receiving the on-demand operation instruction of the user terminal, and sending the streaming media file to the user terminal;
the application system of recorded broadcast data further comprises: an environment device, an environment detection device and an environment control device which are arranged in a classroom; the environment detection equipment is used for detecting the state of the environment equipment, generating a detection signal when the state of the environment equipment does not accord with a preset first condition, and sending the detection signal to the environment control equipment; the environment control equipment is used for controlling the environment equipment according to the detection signal so as to enable the environment equipment to reach a preset first condition;
the application system of the recorded and broadcast data further comprises an assessment terminal and a database;
the first server is respectively connected with the assessment terminal and the database and is used for receiving a play request message of the assessment terminal, wherein the play request message comprises a terminal identification ID;
the database is further used for receiving the terminal ID sent by the first server, and sending a response message to the first server when the terminal ID exists;
and the first server is also used for sending the streaming media file to the assessment terminal according to the response message.
2. The application system of recorded broadcast data according to claim 1, wherein the assessment terminal is further configured to process the streaming media file, extract at least one face image thereof, acquire a face feature according to the face image, generate change data of the face feature according to the face feature within a preset time period, analyze the change data, generate lecture listening status information according to an analysis result of each face image, generate a lecture listening status change curve according to the lecture listening status information, and finally evaluate the lecture listening status of the student according to the lecture listening status change curve.
3. The system for applying recorded broadcast data according to claim 1, wherein a first local area network is formed by the first network device and the recorded broadcast platform;
and in the first local area network, the education institution corresponding to the recording and broadcasting platform carries out interaction of streaming media files.
4. The recorded broadcast data application system of claim 1, wherein the second server is further configured to, after receiving the streaming media file, decode the streaming media file, then extract the first keyword, generate a second keyword according to the first keyword, and add the second keyword to the decoded streaming media file.
5. The recorded broadcast data application system of claim 1, further comprising a platform server;
the platform server is respectively connected with the first server and the second server and is used for monitoring and managing the running states of the first server and the second server.
6. The recorded broadcast data application system of claim 1, further comprising a centralized control room;
the centralized control machine room is respectively connected with the plurality of recorded broadcast platforms and is used for controlling the recorded broadcast platforms.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010021638A (en) * | 2008-07-08 | 2010-01-28 | Denso It Laboratory Inc | Device and method for adding tag information, and computer program |
| WO2013039062A1 (en) * | 2011-09-15 | 2013-03-21 | 国立大学法人大阪教育大学 | Facial analysis device, facial analysis method, and memory medium |
| CN106327929A (en) * | 2016-08-23 | 2017-01-11 | 北京汉博信息技术有限公司 | Visualized data control method and system for informatization |
| CN106331883A (en) * | 2016-08-23 | 2017-01-11 | 北京汉博信息技术有限公司 | Remote visualization data interaction method and system |
| CN106816055A (en) * | 2017-04-05 | 2017-06-09 | 杭州恒生数字设备科技有限公司 | A kind of low-power consumption live teaching broadcast recording and broadcasting system for interacting and method |
| CN106851216A (en) * | 2017-03-10 | 2017-06-13 | 山东师范大学 | A kind of classroom behavior monitoring system and method based on face and speech recognition |
| CN108875606A (en) * | 2018-06-01 | 2018-11-23 | 重庆大学 | A kind of classroom teaching appraisal method and system based on Expression Recognition |
-
2019
- 2019-01-07 CN CN201910011789.3A patent/CN109889916B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010021638A (en) * | 2008-07-08 | 2010-01-28 | Denso It Laboratory Inc | Device and method for adding tag information, and computer program |
| WO2013039062A1 (en) * | 2011-09-15 | 2013-03-21 | 国立大学法人大阪教育大学 | Facial analysis device, facial analysis method, and memory medium |
| CN106327929A (en) * | 2016-08-23 | 2017-01-11 | 北京汉博信息技术有限公司 | Visualized data control method and system for informatization |
| CN106331883A (en) * | 2016-08-23 | 2017-01-11 | 北京汉博信息技术有限公司 | Remote visualization data interaction method and system |
| CN106851216A (en) * | 2017-03-10 | 2017-06-13 | 山东师范大学 | A kind of classroom behavior monitoring system and method based on face and speech recognition |
| CN106816055A (en) * | 2017-04-05 | 2017-06-09 | 杭州恒生数字设备科技有限公司 | A kind of low-power consumption live teaching broadcast recording and broadcasting system for interacting and method |
| CN108875606A (en) * | 2018-06-01 | 2018-11-23 | 重庆大学 | A kind of classroom teaching appraisal method and system based on Expression Recognition |
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