CN201928387U - Integrated course recording device - Google Patents
Integrated course recording device Download PDFInfo
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- CN201928387U CN201928387U CN2011200156948U CN201120015694U CN201928387U CN 201928387 U CN201928387 U CN 201928387U CN 2011200156948 U CN2011200156948 U CN 2011200156948U CN 201120015694 U CN201120015694 U CN 201120015694U CN 201928387 U CN201928387 U CN 201928387U
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Abstract
The utility model discloses an integrated course recording device which relates to a recording device. The utility model provides the integrated course recording device with low energy consumption and low cost. The recording device is provided with a camera shooting component, a VGA (video graphics array) wireless receiving component, a video selection component, a wireless microphone receiving component, a video and audio distribution component, a monitoring component, a hard disk recording component and a complete machine control component, wherein the signal output end of the camera shooting component and the output end of the VGA wireless receiving component are connected with the input end of the video selection component; the output end of the VGA wireless receiving component is connected with the input end of the video and audio distribution component; the output end of the video and audio distribution component is connected with the input end of the video selection component through an interface; the output end of the wireless microphone receiving component is connected with the input end of the video and audio distribution component; the output end of the video and audio distribution component is connected with the monitoring component, the hard disk recording component and a USB (universal serial bus) output interface respectively; the output end of the hard disk recording component is connected with the monitoring component and the USB output interface respectively; and the control signal output end of the complete machine control component is connected with the camera shooting component, the video selection component, the monitoring component and the hard disk recording component.
Description
Technical field
The utility model relates to a kind of record device, especially relates to a kind of integrated course record device.
Background technology
The course record device is the indispensable device that teaching efficiency is shared, improved to education and instruction mechanism high-quality teaching resource, and the use object of course record device is popularized to middle and primary schools gradually by university.The work that school records the course maximum is resource-sharing, and the work of carrying out in good time long-distance education is very limited.
Existing course recording arrangement mainly contains two kinds of patterns: conventional recording mode and recorded broadcast pattern.
1) the existing conventional recording mode is introduced by TV production mode, and used multiple devices constitute, owing to move inconvenience, connects complexity, when taking to any classroom, cannot carry numerous equipment.Therefore conventional recording mode usually is simplified to by a video camera to the scene, carries out later stage compilation again.When normal mode is worked, take teacher's picture by video camera, another video camera is taken projection screen picture, and the two-path video signal is delivered to cut bank and is selected one tunnel video inputs of delivering to video tape recorder by the instructor in broadcasting then.Teacher's voice are also delivered to the audio input end of video tape recorder by microphone through sound console, and audio-video signal is again by the video tape recorder record.Synchronous motor is to make numerous equipment such as video camera, cut bank synchronously operate as normal and indispensable equipment (king's indium, educational television system [M], Beijing Normal University's Web education didactic works 2004), its major defect is to use multiple devices, take the photograph the projection screen picture and take, have deficiencies such as relatively dimer, fuzzy, color distortion, cost height, tens equipment power consumptions are very big, mobile difficulty by video camera.
2) existing recorded broadcast pattern is the product that manufacturer produces for remote scene is live specially, i.e. recording and broadcasting system.It is video frequency collection card, VGA capture card, sound card all is contained in the master computer (server), teacher's voice are also delivered to radio receiver by wireless microphone, send audio signal to the sound card of computer by it again, at last by special-purpose software gather, switch, record, live.This pattern need the higher desktop computer of performance (by manufacturer adopt adorn various integrated circuit boards in the industrial cabinet and form).When work, video camera is taken teacher's vision signal to video frequency collection card, the picture of projection screen is sent one road signal by VGA and is transferred to the VGA capture card by the VGA line, teacher's voice are by being wirelessly transmitted to wireless microphone receiver, audio signal is delivered to sound card, three road signals are controlled by special-purpose software by the instructor in broadcasting, and education informations directly by network direct broadcasting, is recorded in the hard disk simultaneously.But the main application of this device is live, so must use high performance desktop computer, like this, when being used for the course resources construction, the high-performance desktop computer is in a large amount of functions of having left unused, not only waste the also a large amount of energy of consumption of fund, long-term work, and will carry out the wiring transformation of VGA line to the classroom, therefore this mode can not move.Use high performance desktop computer, cost height (sale price of market is not less than 100,000 yuan).Desktop computer is together with the display minimum 240W that consumes energy.
The applicant discloses a kind of course record device in Chinese patent CN201608790U, be provided with VGEA collection and radiating circuit, voice wireless transmission parts, course is recorded controller and computer.VGEA gathers VGA signal and the VGA signal output part of the external dais of audio signal input end difference computer display card and the audio signal output end of sound card with radiating circuit.Course is recorded controller and is provided with 2.4G reception AV demodulator circuit, video input circuit, video blanking commutation circuit, D/A converting circuit, voice receiving demodulation parts, is used for VA/USB converting member, audio select parts and power supply that AV converts usb data stream to.Owing to adopt wireless signal transmission system, save expense in classroom grooving, wiring.The acquisition software that adopts operating system to carry, the development cost of saving special-purpose software.The various integrated circuit boards that are installed on desktop computer are replaced with recording controller, broken away from the desktop computer that energy consumption is several times as much as portable computer.
Summary of the invention
The purpose of this utility model is, cost more high shortcoming big at existing course record device energy consumption, and a kind of low energy consumption, integrated course record device cheaply are provided.
The utility model is provided with:
Need hang over teacher's wireless microphone on one's body and need be contained near the VGA of dais PC changes outside the AV reflector;
Camera assembly, VGA wireless receiving assembly, video are selected assembly, wireless microphone receiving unit, are looked audio distribution assembly, monitoring component, hard disk recording assembly, complete machine control assembly and power supply module; Described camera assembly, VGA wireless receiving assembly, video select assembly, wireless microphone receiving unit, look audio distribution assembly, monitoring component, hard disk recording assembly, complete machine control assembly and power supply module all is integrated in the cabinet, the signal output part of camera assembly and VGA wireless receiving assembly output termination video are selected the input of assembly, the output termination of VGA wireless receiving assembly is looked the input of audio distribution assembly, and the output of looking the audio distribution assembly connects video through interface and selects the assembly input; Wireless microphone receiving unit output termination is looked audio distribution assembly input, look audio distribution assembly output and connect monitoring component, hard disk recording assembly and USB output interface respectively, the output of hard disk recording assembly connects monitoring component and USB output interface respectively, and the control signal output ends of complete machine control assembly connects camera assembly respectively, video is selected assembly, monitoring component and hard disk recording assembly.
Compare with existing course record device, the utlity model has following outstanding advantage:
1) specific aim of task, adaptability are strong.Since adopt integrated design, therefore simple and compact for structure, easy to use, drop into cheap.
2) the instructional video data that record is good can be copied out by USB flash disk, are fit to very much present most teaching resource construction and the needs of sharing.
3) save energy consumption, total energy consumption is about 36W, and table 1 is that existing course record device and energy consumption of the present utility model compare.
Table 1
Source: 1) http://www.soso.com/q? w=%CB%C9%CF%C2WJ-MX12%20%
C4％DC％BA％C4&sc＝web&pid＝c.his&ch＝w.his；
2)http://zhidao.baidu.com/question/2085113.html？fr＝qrl。
Description of drawings
Fig. 1 is the structure composition frame chart of the utility model embodiment.
Fig. 2 is the main circuit theory of constitution figure of the utility model embodiment.
Fig. 3 is the control circuit theory of constitution figure of the utility model embodiment.
Embodiment
Following examples will be further described the utility model in conjunction with the accompanying drawings.
Referring to Fig. 1, the utility model embodiment is provided with need hang over teacher's wireless microphone on one's body and need be contained near the VGA of dais PC to be changeed outside the AV reflector, also is provided with camera assembly (Camera) C, VGA wireless receiving assembly (VGA Wireless) VGAW, video is selected assembly (Video Selector) VS, wireless microphone receiving unit (Wireless Microphones Receive) WMR, look audio distribution assembly (Video/AUDIO Distribution) V/AD, monitoring component (Monitor) M, hard disk recording assembly (HardDisk Recorder) HD, complete machine control assembly (Machine Control) MC and power supply module (Powerl) P; Described camera assembly (Camera) C, VGA wireless receiving assembly (VGA Wireless) VGAW, video is selected assembly (Video Selector) VS, wireless microphone receiving unit (Wireless Microphones Receive) WMR, look audio distribution assembly (Video/AUDIO Distribution) V/AD, monitoring component (Monitor) M, hard disk recording assembly (HardDiskRecorder) HD, complete machine control assembly (Machine Control) MC and power supply module (Power 1) P all are integrated in the cabinet camera assembly C, VGA wireless receiving assembly VGAW, video is selected assembly VS, wireless microphone receiving unit WMR, look audio distribution assembly V/AD, monitoring component M, hard disk recording assembly HD, complete machine control assembly MC and power supply module P; The signal output part of camera assembly C and VGA wireless receiving assembly VGAW output termination video are selected the input of assembly VS, the output termination of VGA wireless receiving assembly VGAW is looked the input of audio distribution assembly V/AD, and the output of looking audio distribution assembly V/AD connects video through interface VAI/O and selects assembly VS input; Wireless microphone receiving unit WMR output termination is looked audio distribution assembly V/AD input, look audio distribution assembly V/AD output and meet monitoring component M, hard disk recording assembly HD and USB output interface USB Out1 respectively, the output of hard disk recording assembly HD meets monitoring component M and USB output interface USB Out2 respectively, and the control signal output ends of complete machine control assembly MC meets camera assembly C respectively, video is selected assembly VS, monitoring component M and hard disk recording assembly HD.
Camera assembly C is bearing the task of absorbing teacher's picture, and the vision signal of its output is delivered to video and selected assembly VS, and its zoom, focus control signal are delivered to complete machine control assembly MC.
VGA wireless receiving assembly VGAW changes into VGA and looks audio frequency (AV) and modulate emission, through wireless signal reception, demodulation, sends vision signal and selects assembly VS to video; Send audio signal on the PC to looking the audio distribution assembly.
Video selects assembly VS the multi-channel video signal of sending here from camera assembly, VGA wireless receiving assembly, input/output interface assembly, selects to send one tunnel required vision signal through the instructor in broadcasting and amplifies allocation component VAD to looking audio frequency.Its selection controlled signal is delivered to complete machine control assembly MC.
After wireless microphone receiving unit WMR receives teacher's voice signal, be sent to and look audio frequency amplification allocation component VAD.
After looking audio distribution assembly V/AD road video, the two-way audio signal sent here by VS, VGAW and WM being amplified, divide four the road to deliver to monitoring component M simultaneously, hard disk recording assembly HD, look audio frequency output, looking audio frequency changes usb data stream assembly by USB out output video/audio data flow, uses for on-the-spot broadcasting.
Monitoring component M adopts 6 cun LCDs can monitor the video/audio signal that AV distributer or hdd recorder are sent here.
Hard disk recording assembly HD carries out weaving into RM after the analog-to-digital conversion to the audio frequency of looking of the audio distribution assembly of considering oneself as, MPEG1, MPEG2, etc. format record on hard disk.HD is arranged to broadcast state,, can also sends simulation and look audio frequency for monitoring through the data that the output of USB assembly is play.
Complete machine control assembly MC coordinates above-mentioned multiple assembly, zoom, the gathering of its control camera assembly, control of video is selected the channel selecting of assembly, the broadcast of control hdd recorder, time-out etc., and can the data of HD be exported by USB by the translation function of self.
Power supply module P transfers civil power device required direct current 12V, 5V, 3V to and offers associated component.
Fig. 2 and 3 provides circuit of the present utility model and forms schematic diagram, and its simple operation principle is as follows:
During the utility model work, can take by the camera assembly C on the machine; Also can send into vision signal by Vin4 by external video camera.The vision signal of two-way is selected by selector switch SW1, forms main video Main Video and sends into 1 input that video is selected assembly VS.When the needs multi-channel video participated in selecting, the utility model provided two secondary video inputs, send Vice Video1 and Vice Video2 to select 2 and 3 inputs of assembly VS to video by Vin3 and Vin2 interface.Video Selected Video after selecting sends into and looks 1 input that audio frequency amplifies allocation component VAD.Simultaneously, teacher's voice are sent 3 inputs of audio signal Local Audio to VAD through wireless microphone receiving unit WMR..The sound of dais PC receives through the VGAW assembly and delivers to audio selected switch SW2, goes out 2 inputs that one tunnel secondary audio signal ViceAudio delivers to VAD with outer audio frequency Vice Audio is selected.Look three output groups that audio frequency amplifies allocation component VAD, deliver to respectively and look audio output interface Video out, Audio R out, Audio L out.The terminal 7,8,10 of VAD send looks audio frequency to the AV/USB assembly, becomes analog signal conversion data-signal by the output of AV-D out port, for usefulness such as on-the-spot broadcasting.The terminal 11,12,13 of VAD send looks 2,5,8 ends of audio frequency to three commutator SW3.The terminal 14,15,16 of VAD send looks 1,2,3 inputs of audio frequency to hard disk recording assembly HD.5,6,7 outputs of hard disk recording assembly HD can be sent the vision signal play by HD 3,6,9 ends to SW3.By the selection of SW3, can monitor the video/audio signal of playing with record back that will write down at monitoring component M.
Transistor Q1, resistance R 1, R2, R3, red light emitting diodes D1, D2 form register lamp, and after device entered recording status, diode D1 and D2 were bright, also sent 11 pin of lamp bright signal by CON3 simultaneously and lighted D6 on the control assembly to control assembly.Green LED D3, resistance R 4 are formed power supply indicator.Electrochemical capacitor C1, C2, C3 are respectively the filter capacitor of 12V, 5V, 3V.AC Power supply socket CZ and mains switch SW4 are used to introduce and open, close the general supply of this device.
Each parts energy consumption of the utility model is as follows:
7 " display: 12V, 700mA, 8.4W;
Hdd recorder: 12V, 800mA, 9.6W;
Video camera: 12V, 300mA, 3.6W;
The power transformer of AV distributer: 1W;
Video selector: 12V, 1000mA, 12W, power transformer;
VGA receives: 5V, 300mA, 1.5W, the USB confession of former cause PC;
Wireless microphone receiver: 3V, 15OmA, 0.45W;
Total energy consumption: 36.55W.
The control channel principle is as follows:
The main various controls of each assembly of the utility model are finished by complete machine control assembly MC.Be connected with each assembly by connector and finish control.Camera assembly control connector CON1, video is selected control connector CON2, hard disk recording control connector CON3, the corresponding relation of their pin and corresponding assembly and function are listed in table 2～4.
Table 2 camera assembly pin function
| The CON1 pin | C assembly pin | Button numbering and |
| 1 | 3 | Long burnt adjustment of S14TELE |
| 2 | 4 | The S15WIDE wide-angle is adjusted |
| 3 | 5 | Long burnt focusing of S16FAR |
| 4 | 6 | The S17NEAR wide-angle focusing |
| 5 | 7 | The S18MENU menu setting |
Table 3 video is selected the assembly pin function
| The CON2 pin | VS assembly pin | Button numbering and |
| 1 | 6 | Switch to Mainvideo by S1 |
| 2 | 7 | D1Main video lamp lamp is bright when selecting |
| 3 | 8 | Switch to VGAvideo by |
| 4 | 10 | D2VGAvideo lamp lamp is bright when selecting the |
| 5 | 11 | Switch to |
| 6 | 12 | D3Vice video 1lamp lamp is bright when selecting |
| 7 | 13 | Switch to Vice video 2 by S4 |
| 8 | 14 | D4Vice video 2lamp lamp is bright when selecting secondary video 2 |
| 9 | 15 | Switch to Fourvideo by S5 |
| 10 | 16 | It is bright that four pictures are cut apart output D5Four video lamp lamp simultaneously |
Table 4 hard disk recording assembly pin function
Video selects to be in the main video Main Video state of selecting when starting shooting in order to make, and carries out key switching at the two-path video of the most frequently used Main Vide and VGAVideo, is provided with a key control circuit.This circuit is made of U1B, U2A, U2B, U2C and peripheral part.U2A, R1 and C1, U2B, R13 and C3, U2C, R4 and C4 form 3 groups of monostable circuits respectively, and U1B is a bistable circuit.During start, because the R high level of U1B makes 13 end Q be in low level, the non-end of 14 end Q is in high level, and Q1 ends, and Q2 moment conducting makes to be equivalent to U3 moment conducting S1 and to press, and Main Video is selected.After a key switching push button S6 pressed, 2 ends of U2A were exported a pulse, and were added to the CLK end of U1B, made bistable state upset Q transfer the non-end of high level Q to and transferred low level to, and Q2 ends, Q1 moment conducting, and U4 conducting U3 ends, and VGA Video is selected.A key of finishing the two-path video of Main Vide and VGA Video thus switches.S3, S4 are the selector button of the secondary video of two-way, and to be four road videos be simultaneously displayed on button on the screen with four cutting states to S5.The indicator light that D1, D2, D3, D4, D5 corresponding video are selected, corresponding lamp is just bright when certain road video is selected.
Because the record of HD assembly itself and stop to be carried out by two groups of circuit respectively for can be consistent with daily use habit, designs singly-bound record/halt circuit, just can carry out record to the HD assembly as long as press S13 ./stop to control.Circuit theory is switched identical with two-path video one key.
The utility model also can adopt tripod, can resemble during use that frame uses on tripod the portable video camera.
Claims (1)
1. integrated course record device, being provided with wireless microphone and VGA changes the AV reflector, it is characterized in that also being provided with camera assembly, VGA wireless receiving assembly, video selection assembly, wireless microphone receiving unit, looks audio distribution assembly, monitoring component, hard disk recording assembly, complete machine control assembly and power supply module; Described camera assembly, VGA wireless receiving assembly, video select assembly, wireless microphone receiving unit, look audio distribution assembly, monitoring component, hard disk recording assembly, complete machine control assembly and power supply module all is integrated in the cabinet, the signal output part of camera assembly and VGA wireless receiving assembly output termination video are selected the input of assembly, the output termination of VGA wireless receiving assembly is looked the input of audio distribution assembly, and the output of looking the audio distribution assembly connects video through interface and selects the assembly input; Wireless microphone receiving unit output termination is looked audio distribution assembly input, look audio distribution assembly output and connect monitoring component, hard disk recording assembly and USB output interface respectively, the output of hard disk recording assembly connects monitoring component and USB output interface respectively, and the control signal output ends of complete machine control assembly connects camera assembly respectively, video is selected assembly, monitoring component and hard disk recording assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200156948U CN201928387U (en) | 2011-01-18 | 2011-01-18 | Integrated course recording device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200156948U CN201928387U (en) | 2011-01-18 | 2011-01-18 | Integrated course recording device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201928387U true CN201928387U (en) | 2011-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011200156948U Expired - Fee Related CN201928387U (en) | 2011-01-18 | 2011-01-18 | Integrated course recording device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108415684A (en) * | 2018-05-08 | 2018-08-17 | 上海彭创教育科技有限公司 | A kind of intelligent blackboard list Driver Card |
| CN111614868A (en) * | 2020-04-17 | 2020-09-01 | 北京中庆现代技术股份有限公司 | Wireless FHD audio-video transmission device |
-
2011
- 2011-01-18 CN CN2011200156948U patent/CN201928387U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108415684A (en) * | 2018-05-08 | 2018-08-17 | 上海彭创教育科技有限公司 | A kind of intelligent blackboard list Driver Card |
| CN111614868A (en) * | 2020-04-17 | 2020-09-01 | 北京中庆现代技术股份有限公司 | Wireless FHD audio-video transmission device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20140118 |