CN104243885A - Image follow based intelligent audio acquisition control system and implementing method thereof - Google Patents
Image follow based intelligent audio acquisition control system and implementing method thereof Download PDFInfo
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- CN104243885A CN104243885A CN201410510444.XA CN201410510444A CN104243885A CN 104243885 A CN104243885 A CN 104243885A CN 201410510444 A CN201410510444 A CN 201410510444A CN 104243885 A CN104243885 A CN 104243885A
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Abstract
The invention relates to an implementing method for image follow based intelligent audio acquisition control. The implementing method is characterized by including the steps of S01, dividing a classroom into a teacher region and N student regions (N is an integer not less than 1); S02, providing cameras for shooting the classroom; S03, turning on audio transmission passage switches of audio acquirers in corresponding regions according to orders of the regions captured by the cameras; and S04, sending acquired audio data to a computer. The corresponding regions can be subjected to audio acquisition according to the orders of the regions captured by the cameras, audio data can be provided for synthesis of recorded video, and audio acquisition quality is improved greatly.
Description
Technical field
The present invention relates to the audio intelligent acquisition control system and its implementation of following in area audio acquisition technique field, particularly a kind of image.
Background technology
Present teaching is all in multi-media classroom, due to faced by student many, therefore, existing multi-media classroom is all very large, and the Voice & Video how high-quality gathers classroom has become a difficult point of existing instructional video video recording.Traditional video capture is all taken by a video camera, and it does not have audio collection on the one hand, on the other hand, even if there is audio collection large for region, also cannot ensure the definition gathering audio frequency.
Summary of the invention
The object of this invention is to provide the implementation method that audio intelligent collection that a kind of image follows controls, the camera watch region that audio frequency follows video camera can be realized and carry out audio collection.
The present invention adopts following scheme to realize: the implementation method that the audio intelligent collection that a kind of image is followed controls, and it is characterized in that comprising the following steps:
Step S01 a: classroom is divided into teacher district and N number of student district, N be not less than 1 integer;
Step S02: be provided for the video camera taking described classroom;
Step S03: the local command taken according to described video camera opens the audio transmission channel switch of the audio collection device of corresponding region;
Step S04: the voice data of collection is sent to a computer.
In an embodiment of the present invention, the audio frequency of described audio collection device collection sends described computer to after an automatic growth control.
In an embodiment of the present invention, the local command in described step S03 has multiple, then corresponding multiple audio collection devices output to described computer by signal mix output channel after obtaining the process of multipath audio signal entering signal hybrid channel.
In an embodiment of the present invention, described classroom district is one, and student district is four.
Another object of the present invention is to provide the audio intelligent acquisition control system that a kind of image is followed, and this system features is to comprise:
N number of audio collection device, correspondence is arranged at N number of region in a classroom;
N number of voice-grade channel;
One PC, the voice-grade channel that described audio collection device is respectively hung oneself described in is connected with described PC;
Channel selecting commutation circuit, switches for the selection realizing described audio collection device transmission channel;
Video camera, for taking described region; And central controller, the channel selecting commutation circuit described in the local command for receiving the shooting of described video camera controls opens the audio collection device of corresponding region.
In an embodiment of the present invention, described voice-grade channel is provided with automatic gain master switch and auto-gain circuit; Described automatic gain master switch is controlled by described central controller; Described auto-gain circuit for realize each road voice-grade channel audio frequency automatic gain after be transferred to described PC.
In an embodiment of the present invention, described video camera has multiple, and the channel selecting commutation circuit described in the local command that described central controller receives the shooting of multiple video camera controls opens the audio collection device of corresponding region, gives described PC by audio mixing channel transfer.
In an embodiment of the present invention, described classroom district is one, and student district is four.
The present invention can carry out audio collection according to the local command of video camera shooting to corresponding region, for the synthesis of video provides voice data, greatly improves the quality of audio collection.
Accompanying drawing explanation
Fig. 1 is the inventive method schematic flow sheet.
Fig. 2 is that one embodiment of the invention teacher region divides schematic diagram.
Fig. 3 is that another embodiment of the present invention teacher region divides schematic diagram.
Fig. 4 is that yet another embodiment of the invention teacher region divides schematic diagram.
Fig. 5 is the system principle diagram of the embodiment of the present invention one.
Fig. 6 is the system principle diagram of the embodiment of the present invention two.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage more become apparent, and are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.
Set forth detail in the following description so that fully understand the present invention.But the present invention can be different from alternate manner described here to implement with multiple, those skilled in the art can when without prejudice to doing similar popularization when intension of the present invention.Therefore the present invention is not by the restriction of following public embodiment.
Refer to Fig. 1, the implementation method that the audio intelligent collection that the present embodiment provides a kind of image to follow controls, it is characterized in that comprising the following steps:
Step S01 a: classroom is divided into teacher district and N number of student district, N be not less than 1 integer;
Step S02: be provided for the video camera taking described classroom;
Step S03: the local command taken according to described video camera opens the audio transmission channel switch of the audio collection device of corresponding region;
Step S04: the voice data of collection is sent to a computer.
In the embodiment of the present invention, the audio frequency of described audio collection device collection sends described computer to after an automatic growth control.In addition, the present invention also possesses multipath audio signal collection, namely the local command in described step S03 has multiple, then corresponding multiple audio collection devices output to described computer by signal mix output channel after obtaining the process of multipath audio signal entering signal hybrid channel.
Refer to Fig. 2, in Fig. 2, classroom is divided into a teacher district (A); A student district (B); When teacher talks, the video of camera shooting teacher region, and send an instruction of taking this region to described central controller, central controller then controls the transmission channel of this teacher region audio collection device, the sound in automatic collection A district, close the audio collection passage in B district, then the sound in B region is by automatic shield; Equally, automatically gather the sound in B district when student talks, A district sound will not recorded.
Refer to Fig. 3, in Fig. 3, classroom is divided into a teacher district (A); Student divides into 2 and is respectively (B and C); Same, automatically adopt the sound in A district when teacher talks, the sound in B district and C district is by automatic shield; Automatically gather the sound in B district when B district student talks, A district and C district sound will not recorded; When C district student talks, automatically gather C district sound, A district and B district sound are not recorded.
Refer to Fig. 4, in Fig. 4, classroom is divided into a teacher district (A), teacher divides into four (B, C, D, E).Same, when regional has people to talk, other region sound will be not collected.In addition, it is worth mentioning that, the present invention also possesses multi pass acquisition function, if the multiple regions namely in B, C, D, E have people to talk, gathered separately by multiple cameras, trigger multiple local command, can realize multiple audio collection, multiple audio frequency can be processed to PC by audio mixing channel transfer.
Refer to Fig. 5, the audio intelligent acquisition control system that the present embodiment provides a kind of image to follow, this system features is to comprise: N number of audio collection device, and correspondence is arranged at N number of region in a classroom; N number of voice-grade channel; One PC, the voice-grade channel that described audio collection device is respectively hung oneself described in is connected with described PC; Channel selecting commutation circuit, switches for the selection realizing described audio collection device transmission channel; Video camera, for taking described region; And central controller, the channel selecting commutation circuit described in the local command for receiving the shooting of described video camera controls opens the audio collection device of corresponding region.The present embodiment central controller sends zone control instruction by video camera, controls corresponding voice-grade channel work, thus realizes the audio collection of tracking camera.
Preferably, in described voice-grade channel, be also provided with automatic gain function, namely can realize by the control of central controller the control audio frequency of dedicated tunnel being realized to automatic gain.
Refer to Fig. 6, in the present embodiment, this device possesses automatic gain and multichannel voice frequency acquisition function, described video camera has multiple, channel selecting commutation circuit described in the local command that described central controller receives the shooting of multiple video camera controls opens the audio collection device of corresponding region, gives described PC by audio mixing channel transfer.Concrete, the local command information that the present embodiment is sent by image tracking system, automatic switch area audio signal picker.When video camera needs a-quadrant, location, send to the switch chip of affiliated a-quadrant while sending command adapted thereto by central control chip to video camera and open order, the signal picker audio frequency of a-quadrant is transmitted, automatically following of tracking camera and audio signal sample is reached with this, if video camera leaves a-quadrant, then main control chip sends relative pass instruction, closes the audio signal input of a-quadrant.Please continue see Fig. 6, the present invention can select automatic gain function.Namely determine whether opening automatic gain function by controlling automatic gain master switch, after audio signal sample enters, if open this function, signal enters automatic growth control passage, after the comparison operation of signal by chip gain inside, the output amplitude of automatic regulating signal.The conversion of automatic volume control is reached with this.
In addition, the present invention also possesses multipath audio signal mixing output.When multi signal effectively inputs.Main control chip sends corresponding control switch chip unlatching multizone while controlling camera status, after obtaining the process of multipath audio signal entering signal hybrid channel, outputs to host computer by signal mix output channel.The audio frequency of collection and corresponding video image are optionally carried out pairing mixing by this host computer, play for system call.Be noted that the division in region, classroom can be the same with above-described embodiment, just do not state tired here.
Although the present invention with preferred embodiment openly as above; but it is not for limiting the present invention; any those skilled in the art without departing from the spirit and scope of the present invention; the Method and Technology content of above-mentioned announcement can be utilized to make possible variation and amendment to technical solution of the present invention; therefore; every content not departing from technical solution of the present invention; the any simple modification done above embodiment according to technical spirit of the present invention, equivalent variations and modification, all belong to the protection range of technical solution of the present invention.The foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (8)
1. the implementation method that the audio intelligent collection that image is followed controls, is characterized in that comprising the following steps:
Step S01 a: classroom is divided into teacher district and N number of student district, N be not less than 1 integer;
Step S02: be provided for the video camera taking described classroom;
Step S03: the local command taken according to described video camera opens the audio transmission channel switch of the audio collection device of corresponding region;
Step S04: the voice data of collection is sent to a computer.
2. the implementation method that the audio intelligent collection that image according to claim 1 is followed controls, is characterized in that: the audio frequency of described audio collection device collection sends described computer to after an automatic growth control.
3. the implementation method that the audio intelligent collection that image according to claim 1 is followed controls, it is characterized in that: the local command in described step S03 has multiple, then corresponding multiple audio collection devices output to described computer by signal mix output channel after obtaining the process of multipath audio signal entering signal hybrid channel.
4. the implementation method that the audio intelligent collection that image according to claim 1 is followed controls, it is characterized in that: described classroom district is one, student district is four.
5. the system that the audio intelligent collection that image is followed controls, is characterized in that comprising:
N number of audio collection device, correspondence is arranged at N number of region in a classroom;
N number of voice-grade channel;
One PC, the voice-grade channel that described audio collection device is respectively hung oneself described in is connected with described PC;
Channel selecting commutation circuit, switches for the selection realizing described audio collection device transmission channel;
Video camera, for taking described region; And
Central controller, the channel selecting commutation circuit described in the local command for receiving the shooting of described video camera controls opens the audio collection device of corresponding region.
6. the system that the audio intelligent collection that image according to claim 1 is followed controls, is characterized in that: described voice-grade channel is provided with automatic gain master switch and auto-gain circuit; Described automatic gain master switch is controlled by described central controller; Described auto-gain circuit for realize each road voice-grade channel audio frequency automatic gain after be transferred to described PC.
7. the system that the audio intelligent collection that image according to claim 1 is followed controls, it is characterized in that: described video camera has multiple, channel selecting commutation circuit described in the local command that described central controller receives the shooting of multiple video camera controls opens the audio collection device of corresponding region, gives described PC by audio mixing channel transfer.
8. the system that the audio intelligent collection that image according to claim 1 is followed controls, it is characterized in that: described classroom district is one, student district is four.
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| CN201410510444.XA CN104243885A (en) | 2014-09-29 | 2014-09-29 | Image follow based intelligent audio acquisition control system and implementing method thereof |
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| CN201410510444.XA CN104243885A (en) | 2014-09-29 | 2014-09-29 | Image follow based intelligent audio acquisition control system and implementing method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105338311A (en) * | 2015-10-12 | 2016-02-17 | 北京奇虎科技有限公司 | Internet protocol camera, data transmission method thereof and system |
| CN105592336A (en) * | 2015-12-21 | 2016-05-18 | 北京奇虎科技有限公司 | Data combined acquisition and transmission method, multiple intelligent devices, and cloud server |
| CN107135366A (en) * | 2016-02-29 | 2017-09-05 | 赛尔莱博股份有限公司 | Image generating method and device inserted with source of sound |
| CN110248151A (en) * | 2018-11-20 | 2019-09-17 | 浙江大华技术股份有限公司 | A kind of audio-video synthetic method and equipment |
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| US20040252231A1 (en) * | 2003-06-13 | 2004-12-16 | Apple Computer, Inc. | Synthesis of vertical blanking signal |
| CN201177877Y (en) * | 2008-04-15 | 2009-01-07 | 北京中大育盟教育科技有限公司 | Multimedia platform for network education |
| CN201409215Y (en) * | 2009-05-05 | 2010-02-17 | 北京天宇威视科技有限公司 | Microphone sound-mixing device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20040252231A1 (en) * | 2003-06-13 | 2004-12-16 | Apple Computer, Inc. | Synthesis of vertical blanking signal |
| CN201177877Y (en) * | 2008-04-15 | 2009-01-07 | 北京中大育盟教育科技有限公司 | Multimedia platform for network education |
| CN201409215Y (en) * | 2009-05-05 | 2010-02-17 | 北京天宇威视科技有限公司 | Microphone sound-mixing device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105338311A (en) * | 2015-10-12 | 2016-02-17 | 北京奇虎科技有限公司 | Internet protocol camera, data transmission method thereof and system |
| CN105592336A (en) * | 2015-12-21 | 2016-05-18 | 北京奇虎科技有限公司 | Data combined acquisition and transmission method, multiple intelligent devices, and cloud server |
| CN107135366A (en) * | 2016-02-29 | 2017-09-05 | 赛尔莱博股份有限公司 | Image generating method and device inserted with source of sound |
| CN110248151A (en) * | 2018-11-20 | 2019-09-17 | 浙江大华技术股份有限公司 | A kind of audio-video synthetic method and equipment |
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Application publication date: 20141224 |